CN118060934B - Revolving stage structure and lathe - Google Patents
Revolving stage structure and lathe Download PDFInfo
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- CN118060934B CN118060934B CN202410479794.8A CN202410479794A CN118060934B CN 118060934 B CN118060934 B CN 118060934B CN 202410479794 A CN202410479794 A CN 202410479794A CN 118060934 B CN118060934 B CN 118060934B
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- 238000001816 cooling Methods 0.000 claims abstract description 599
- 239000002826 coolant Substances 0.000 claims description 42
- 238000009434 installation Methods 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 15
- 238000004891 communication Methods 0.000 claims description 6
- 238000013461 design Methods 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 13
- 230000009286 beneficial effect Effects 0.000 description 10
- 238000005096 rolling process Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 4
- 230000010354 integration Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
- B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/102—Jaws, accessories or adjustment means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Auxiliary Devices For Machine Tools (AREA)
Abstract
The invention relates to the technical field of machine manufacturing, and discloses a turntable structure and a machine tool, wherein the turntable structure comprises a table board, a shell, a central shaft, a first bearing, a rotary joint and a cooling structure, and the cooling structure comprises: the first cooling structure is arranged on the rotary joint, and the inlet is suitable for being communicated with the output port of the external cooling device; the second cooling structure is arranged on the contact surface of the central shaft and the table top, and the inlet is communicated with the outlet of the first cooling structure; the third cooling structure is arranged on the contact surface of the central shaft and the first bearing, and the inlet is communicated with the outlet of the second cooling structure; and the fourth cooling structure is arranged on the rotary joint, the inlet is communicated with the outlet of the third cooling structure, and the outlet is suitable for being communicated with the input port of the external cooling device. The design of this scheme can all cool off rotary joint, center pin, mesa and first bearing to the temperature of the key spare part that generates heat of control revolving stage structure, thereby reduce the influence of temperature to the revolving stage structure.
Description
Technical Field
The invention relates to the technical field of machine manufacturing, in particular to a turntable structure and a machine tool.
Background
At present, the requirements of the numerical control machine tool on key functional components are higher and higher, wherein the integration of the processing procedure is one of important requirements, and the numerical control turntable structure has the turning and milling auxiliary function, so that the number of processing equipment and clamping and transferring work in the processing process can be greatly reduced. At present, the rotating speed of a turning and milling numerical control turntable is higher and higher along with the processing requirement, under the high-speed running state, the running stability of the turntable and the clamping precision of a table top can be seriously influenced by the heating of a bearing, the heat transfer of the bearing and the heating of a motor, and meanwhile, the service lives of the bearing and the motor can be greatly reduced due to the heating problem.
The prior art CN202223469813.4 discloses a turntable structure, although cooling of the central shaft is achieved, in the actual operation process of the turntable, the operation of the turntable is greatly affected by the heat generation problem of other key heat generating components such as a turntable table top, a bearing and the like.
Disclosure of Invention
In view of the above, the present invention provides a turntable structure and a machine tool to solve the problem of heat generation of key heat generating components of the turntable structure.
In a first aspect, the present invention provides a turntable structure comprising:
The table top is provided with a first installation space at the center;
the shell is arranged below the table top;
The central shaft is arranged in the shell, the upper end of the central shaft is fixedly connected with the bottom of the table top, a second installation space is arranged at the axis center of the central shaft, and the second installation space is communicated with the first installation space;
A first bearing provided between the housing and the central shaft;
the rotary joint is arranged in the first installation space and the second installation space and comprises an inner shaft and an outer sleeve;
a cooling structure adapted to circulate a cooling medium therein, the cooling structure comprising:
the first cooling structure is arranged on the rotary joint, and an inlet of the first cooling structure is suitable for being communicated with an output port of the external cooling device;
The second cooling structure is arranged on the contact surface of the central shaft and the table top, and an inlet of the second cooling structure is communicated with an outlet of the first cooling structure;
the third cooling structure is arranged on the contact surface of the central shaft and the first bearing, and an inlet of the third cooling structure is communicated with an outlet of the second cooling structure;
And the fourth cooling structure is arranged on the rotary joint, an inlet of the fourth cooling structure is communicated with an outlet of the third cooling structure, and an outlet of the fourth cooling structure is suitable for being communicated with an input port of the external cooling device.
The beneficial effects are that: through set up first cooling structure and the fourth cooling structure with external cooling device intercommunication on rotary joint, set up the second cooling structure on the contact surface of center pin and mesa, set up the third cooling structure on the contact surface of center pin and first bearing for the cooling medium can all cool off rotary joint, center pin, mesa and the inboard of first bearing, thereby can control the temperature of the key spare part that generates heat of revolving stage structure, thereby reduce the influence of temperature to revolving stage structure, realize the high accuracy design demand of revolving stage structure, improve revolving stage structure's reliability and life.
In an alternative embodiment, the first cooling structure includes:
the inner shaft flows into the cooling structure, is arranged on the inner shaft, and the inlet is suitable for being communicated with the output port of the external cooling device;
The outer sleeve flows into the cooling structure, is arranged on the outer sleeve, and the inlet is communicated with the outlet of the inner shaft inflow cooling structure;
And/or, the fourth cooling structure comprises:
the outer sleeve flows out of the cooling structure, is arranged on the outer sleeve, and the inlet is communicated with the outlet of the third cooling structure;
the inner shaft flows out of the cooling structure, is arranged on the inner shaft, the inlet is communicated with the outlet of the outer sleeve flowing out of the cooling structure, and the outlet is suitable for being communicated with the input port of the external cooling device.
The beneficial effects are that: through setting up first cooling structure to including interior axle inflow cooling structure and overcoat inflow cooling structure to/or set up the fourth cooling structure to including overcoat outflow cooling structure and interior axle outflow cooling structure, can make full use of interior axle and the spatial structure of overcoat, rationally distributed cooling structure's setting position cools off interior axle and overcoat simultaneously, improves the cooling effect.
In an alternative embodiment, the jacket inflow cooling structure comprises:
The first inner cooling loop is annularly arranged and is arranged on the inner side of the outer sleeve close to the inner shaft, and an inlet of the first inner cooling loop is communicated with an outlet of the inner shaft flowing into the cooling structure;
a first connecting channel, one end of which is communicated with the outlet of the first inner cooling loop;
The first outer cooling loop is annularly arranged and arranged at the outer side of the outer sleeve, an inlet of the first outer cooling loop is communicated with the other end of the first connecting channel, and an outlet of the first outer cooling loop is communicated with an inlet of the second cooling structure;
And/or, the jacket outflow cooling structure comprises:
the second outer cooling loop is annularly arranged and arranged at the outer side of the outer sleeve, and an inlet of the second outer cooling loop is communicated with an outlet of the third cooling structure;
a second connecting channel, one end of which is communicated with the outlet of the second outer cooling loop;
The second inner cooling loop is in an annular arrangement and is arranged on the inner side of the outer sleeve close to the inner shaft, an inlet of the second inner cooling loop is communicated with the other end of the second connecting channel, and an outlet of the second inner cooling loop is communicated with an inlet of the inner shaft outflow cooling structure.
The beneficial effects are that: through setting up the overcoat inflow cooling structure to including first interior cooling ring way and first outer cooling ring way to set up first interior cooling ring way in the inboard that the overcoat is close to interior axle, be convenient for flow into cooling structure intercommunication with first interior cooling ring way and interior axle, set up the outside at the overcoat with first outer cooling ring way, be convenient for communicate first outer cooling ring way and second cooling structure, set up first interior cooling ring way and first outer cooling ring way into annular structure simultaneously, can flow the coolant along the hoop of overcoat, fully realize the cooling to rotary joint.
In an alternative embodiment, the first cooling structure and the fourth cooling structure are both arranged on the rotary joint and are arranged at intervals along the circumferential direction of the rotary joint;
and/or, the second cooling structure and the third cooling structure are arranged on the central shaft;
and/or the cooling structure is provided with annular sealing means adapted to prevent leakage of the cooling medium;
And/or, the third cooling structure comprises:
the inner ring flows into the cooling structure and is annularly arranged, and the inlet is communicated with the outlet of the second cooling structure through a seventh connecting channel;
The inner ring flows out of the cooling structure and is annularly arranged, the inlet is communicated with the outlet of the inner ring flowing into the cooling structure, and the outlet is communicated with the inlet of the second outer cooling loop of the fourth cooling structure.
The beneficial effects are that: the first cooling structure and the fourth cooling structure are respectively communicated with the input port and the output port of the external cooling device, and cooling mediums flowing in the first cooling structure and the fourth cooling structure have a certain temperature difference; the second cooling structure and the third cooling structure are arranged on the central shaft, so that the arrangement of the cooling structure is more compact, the size of a cooling pipeline is reduced, the structural design of the central shaft is only required to be changed, other structures are not required to be changed, and particularly, the contact surface of the first bearing and the central shaft is just the position where the rolling body of the first bearing is arranged; because the turntable structure needs to rotate during actual operation, the cooling structure is provided with the annular sealing device, if the cooling structure only has leakage risk on one side, the annular sealing device can be arranged on the side only, and when leakage risk exists on multiple sides of the cooling structure, the annular sealing device is arranged on the multiple sides of the cooling structure, so that the cooling medium is prevented from leaking.
In an alternative embodiment, the second cooling structure is arranged in a ring shape, and the inlet of the second cooling structure and the outlet of the second cooling structure are respectively arranged at two sides of the ring center.
The beneficial effects are that: through setting up the second cooling structure into annular structure for the cooling area of mesa is bigger, locates the both sides of ring heart respectively with the entry of second cooling structure and the export of second cooling structure simultaneously, can guarantee that cooling medium flows the back again fully.
In an alternative embodiment, the second cooling structure includes a plurality of annular channels in a radial direction, adjacent annular channels are communicated through third connecting channels, and the adjacent third connecting channels are respectively located at two sides of the annular center.
The beneficial effects are that: through setting up the second cooling structure to including a plurality of annular channels along radial, through third connecting channel intercommunication between the adjacent annular channel, and adjacent third connecting channel is in the both sides of ring heart respectively for cooling medium can flow at annular channel, and get into inboard annular channel from the opposite side again after abundant flow in the annular channel in the outside, prolonged cooling medium's flow path, increased the cooling area to the mesa.
In an alternative embodiment, the turntable structure comprises a motor, which is arranged in the housing and below the first bearing, and the rotor of the motor is fixedly connected with the central shaft;
the cooling structure includes:
A fifth cooling structure provided on the housing, an inlet of the fifth cooling structure adapted to communicate with an outlet of the external cooling device;
the sixth cooling structure is arranged on the contact surface between the bottom of the first bearing and the motor, and an inlet of the sixth cooling structure is communicated with an outlet of the fifth cooling structure through a fifth connecting channel;
a seventh cooling structure arranged on the shell, wherein an inlet of the seventh cooling structure is communicated with an outlet of the sixth cooling structure through a sixth connecting channel;
An eighth cooling structure arranged on the contact surface of the motor and the shell, wherein an inlet of the eighth cooling structure is communicated with an outlet of the seventh cooling structure;
and a ninth cooling structure arranged on the shell, wherein an inlet of the ninth cooling structure is communicated with an outlet of the eighth cooling structure, and an outlet of the ninth cooling structure is suitable for being communicated with an input port of the external cooling device.
The beneficial effects are that: through setting up fifth cooling structure, seventh cooling structure, ninth cooling structure on the casing, set up sixth cooling structure on the bottom of first bearing and the contact surface of motor, set up eighth cooling structure on the contact surface of motor and casing for the cooling medium can flow to the outside of first bearing and on the motor, establish ties the cooling structure of the outside of first bearing and motor together, cool off the outside of first bearing and motor simultaneously, reduce the influence of the outside of first bearing and the heating of motor to the revolving stage structure.
In an alternative embodiment, the sixth connecting channel is disposed obliquely, and a side of the sixth connecting channel close to the seventh cooling structure is higher than a side of the sixth connecting channel close to the sixth cooling structure;
And/or the fifth connecting channel is obliquely arranged, and one side of the fifth connecting channel close to the fifth cooling structure is higher than one side of the fifth connecting channel close to the sixth cooling structure.
The beneficial effects are that: the sixth connecting channel is obliquely arranged, and one side of the sixth connecting channel, which is close to the seventh cooling structure, is higher than one side of the sixth connecting channel, which is close to the sixth cooling structure, so that cooling medium in the sixth cooling structure can flow out of the sixth cooling structure along an obliquely upward channel after fully exchanging heat, and the cooling effect on the first bearing is ensured; through setting up the slope of fifth connecting channel, and one side that the fifth connecting channel is close to fifth cooling structure is higher than one side that the fifth connecting channel is close to sixth cooling structure for the coolant in the fifth cooling structure is convenient for through gravity slope downwards entering in the sixth cooling structure, has increased the initial velocity of flow of coolant, makes coolant can be full of the cooling ring chamber fast, realizes the cooling to first bearing.
In an alternative embodiment, the cooling structure includes a cooling cover body disposed at the bottom of the first bearing, and the sixth cooling structure is disposed on the cooling cover body;
and/or an accommodating space is arranged in the rotor of the motor, and a connecting pipeline between the rotary joint and the external cooling device is arranged in the accommodating space;
And/or, the sixth cooling structure is arranged in a ring shape;
and/or the eighth cooling structure is spirally arranged on the motor;
and/or the inlet of the eighth cooling structure is lower than the outlet of the eighth cooling structure.
The beneficial effects are that: the connecting pipeline between the rotary joint and the external cooling device is arranged in the accommodating space of the rotor of the motor, so that the space inside the rotor of the motor can be just utilized, a reasonable bending space is reserved for the pipeline, the reasonable utilization of the space inside the turntable structure is realized, meanwhile, the integration of the first cooling structure, the fourth cooling structure and the rotary joint is convenient to realize, resources are reasonably utilized, and the space utilization rate is improved; by arranging the sixth cooling structure to be an annular structure, the cooling area of the first bearing can be increased, and the cooling effect of the first bearing can be improved; by setting the inlet of the eighth cooling structure lower than the outlet of the eighth cooling structure, the cooling medium entering the eighth cooling structure can flow upwards after flowing fully, thereby ensuring the cooling effect.
In a second aspect, the present invention also provides a machine tool comprising: the turntable structure described above.
The beneficial effects are that: since the machine tool includes the turntable structure, it has the same effect as the turntable structure and will not be described in detail herein.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a cross-sectional view of a turret structure according to an embodiment of the invention;
FIG. 2 is a top view of a second cooling structure;
FIG. 3 is a cross-sectional view of a first view of the central axis;
FIG. 4 is a cross-sectional view of a second view of the central axis;
FIG. 5 is a top view of a sixth cooling structure;
FIG. 6 is a schematic structural view of a sixth cooling structure;
FIG. 7 is a cross-sectional view of a first view of a cooling structure on a housing and motor;
FIG. 8 is a cross-sectional view of a second view of the cooling structure on the housing and motor;
FIG. 9 is a cross-sectional view of a third view of a cooling structure on the housing and motor;
FIG. 10 is a partial cross-sectional view of the outer housing and inner shaft assembly;
FIG. 11 is a partial cross-sectional view of the housing, first bearing and center shaft assembly;
Fig. 12 is a partial cross-sectional view of the table-top assembled with the central shaft.
Reference numerals illustrate:
1-a table top; 2-a housing; 3-a central axis; 4-a first bearing; 5-a second cooling structure; 501-an annular channel; 502-a third connection channel; 503-an inlet of a second cooling structure; 504-an outlet of the second cooling structure; 6-the inner shaft flows into the cooling structure; 7-an inner shaft; 8-a jacket; 9-the inner shaft flows out of the cooling structure; 10-inflow inner cooling tube joint; 11-inflow into the inner cooling tube; 12-outflow inner cooling pipe joint; 13-flowing out of the inner cooling tube; 14-a rotor; 15-a first inner cooling loop; 16-a first connection channel; 17-a first outer cooling loop; 18-a second inner cooling loop; 19-a second connecting channel; 20-a second outer cooling loop; 21-the inner ring flowing into the cooling structure; 22-the inner ring flows out of the cooling structure; 23-sealing means; 24-seventh connection channel; 25-a fifth cooling structure; 26-a sixth cooling structure; 27-a seventh cooling structure; 28-eighth cooling structure; 29-a ninth cooling structure; 30-inflow outer cooling tube joint; 31-inflow outer cooling tube; 32-outflow external cooling pipe joint; 33-out of the outer cooling tube; 34-cooling the cover; 35-fifth connecting channel; 36-sixth connecting channel; 37-stator; 38-a first connector; 39-a second connector; 40-eighth connecting channel; 41-a second bearing; 42-fourth connection channel.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The term "and/or" located between a first body and a second body includes any of the following meanings: (1) only a first body, (2) only a second body, and (3) the first body and the second body. The term "and/or" located between the last two bodies in a list of 3 or more bodies refers to at least one body in the list that includes any particular combination of bodies in the list. For example, "A, B and/or C" has the same meaning as "a and/or B and/or C" including the following combinations of A, B and C: (1) A only, (2) B only, (3) C only, (4) A and B and C not present, (5) A and C and B not present, (6) B and C and A not present, and (7) A and B and C.
Embodiments of the present invention are described below with reference to fig. 1 to 12.
According to an embodiment of the present invention, in one aspect, there is provided a turntable structure including: the table top 1, the center of the table top 1 is provided with a first installation space; a housing 2 arranged below the table top 1; the central shaft 3 is arranged in the shell 2, the upper end of the central shaft 3 is fixedly connected with the bottom of the table top 1, a second installation space is formed at the axis center of the central shaft 3, and the second installation space is communicated with the first installation space; a first bearing 4 provided between the housing 2 and the central shaft 3; the rotary joint is arranged in the first installation space and the second installation space and comprises an inner shaft 7 and an outer sleeve 8; a cooling structure adapted to circulate a cooling medium therein, the cooling structure comprising: the first cooling structure is arranged on the rotary joint, and an inlet of the first cooling structure is suitable for being communicated with an output port of the external cooling device; a second cooling structure 5 provided on the contact surface between the central shaft 3 and the table top 1, the inlet 503 of the second cooling structure being communicated with the outlet of the first cooling structure; the third cooling structure is arranged on the contact surface of the central shaft 3 and the first bearing 4, and the inlet of the third cooling structure is communicated with the outlet 504 of the second cooling structure; and the fourth cooling structure is arranged on the rotary joint, an inlet of the fourth cooling structure is communicated with an outlet of the third cooling structure, and an outlet of the fourth cooling structure is suitable for being communicated with an input port of the external cooling device.
Through set up first cooling structure and the fourth cooling structure with external cooling device intercommunication on rotary joint, set up second cooling structure 5 on the contact surface of center pin 3 and mesa 1, set up third cooling structure on the contact surface of center pin 3 and first bearing 4 for the cooling medium can all cool off rotary joint, center pin 3, mesa 1 and the inboard of first bearing 4, thereby can control the temperature of the key spare part that generates heat of turntable structure, thereby reduce the influence of temperature to turntable structure, realize turntable structure's high accuracy design demand, turntable structure's reliability and life are improved.
Specifically, the second cooling structure 5 and the third cooling structure in the present embodiment are both provided on the center shaft 3. Through all setting up second cooling structure 5 and third cooling structure on center pin 3, can make cooling structure's setting compacter, reduce the size of cooling line, and only need change the structural design of center pin 3, need not to change other structures, especially the contact surface of first bearing 4 and center pin 3 is just set up the position of first bearing 4 rolling element, if set up third cooling structure on first bearing 4, then probably can interfere the rolling element, influences the normal work of first bearing 4. As an alternative embodiment, the second cooling structure 5 may be provided on the table top 1 and the third cooling structure may be provided on the first bearing 4, but interference with the rolling elements of the first bearing 4 may be avoided.
The first cooling structure and the fourth cooling structure in this embodiment are both disposed on the rotary joint and are disposed along the circumferential direction of the rotary joint at intervals, and specifically set as follows:
As shown in fig. 1, the first cooling structure in the present embodiment includes: the inner shaft flows into the cooling structure 6 and is arranged on the inner shaft 7, and the inlet is suitable for being communicated with an output port of the external cooling device; the outer sleeve flows into the cooling structure and is arranged on the outer sleeve 8, and the inlet is communicated with the outlet of the inner shaft flowing into the cooling structure 6. Through setting up first cooling structure to including interior axle inflow cooling structure 6 and overcoat inflow cooling structure, can make full use of interior axle 7 and the spatial structure of overcoat 8, rationally distributed cooling structure's setting position cools off interior axle 7 and overcoat 8 simultaneously, improves the cooling effect. As an alternative embodiment, the first cooling structure may comprise only a jacket inflow cooling structure provided on the jacket 8, the inlet of the jacket inflow cooling structure being in communication with the outlet of the external cooling device.
Likewise, the fourth cooling structure includes: the outer sleeve flows out of the cooling structure and is arranged on the outer sleeve 8, and the inlet is communicated with the outlet of the third cooling structure; the inner shaft flows out of the cooling structure 9, is arranged on the inner shaft 7, and the inlet is communicated with the outlet of the outer sleeve flowing out of the cooling structure, and the outlet is suitable for being communicated with the input port of the external cooling device. The space structures of the inner shaft 7 and the outer sleeve 8 can be fully utilized, and the setting positions of the cooling structure can be reasonably distributed.
Specifically, as shown in fig. 1, the inner shaft inflow cooling structure 6 and the inner shaft outflow cooling structure 9 in the present embodiment are both vertically arranged cooling passages, which are circumferentially arranged at intervals in the shaft body of the inner shaft 7.
Wherein, the inlet of the inner shaft inflow cooling structure 6 is connected with an inflow inner cooling pipe joint 10, the other end of the inflow inner cooling pipe joint 10 is connected with an inflow inner cooling pipe 11, and the other end of the inflow inner cooling pipe 11 is connected with an output port of an external cooling device; an outflow inner cooling pipe joint 12 is connected to the outlet of the inner shaft outflow cooling structure 9, an outflow inner cooling pipe 13 is connected to the other end of the outflow inner cooling pipe joint 12, and the other end of the outflow inner cooling pipe 13 is connected to the inlet of the external cooling device.
The turntable structure in this embodiment comprises a motor arranged in the housing 2 below the first bearing 4, the rotor 14 of which motor is fixedly connected to the central shaft 3. Specifically, the motor is a direct drive motor.
Wherein, the rotor 14 of the motor is internally provided with an accommodating space, and a connecting pipeline between the rotary joint and the external cooling device, specifically an inflow inner cooling pipe joint 10, an inflow inner cooling pipe 11, an outflow inner cooling pipe joint 12 and an outflow inner cooling pipe 13 are arranged in the accommodating space. The space inside the rotor 14 of the motor can be just utilized, reasonable bending space is reserved for the pipeline, reasonable utilization of the space inside the turntable structure is achieved, meanwhile, the integration of the first cooling structure, the fourth cooling structure and the rotary joint is convenient to achieve, resources are reasonably utilized, and the space utilization rate is improved.
As shown in fig. 1, the jacket inflow cooling structure in this embodiment includes: the first inner cooling loop 15 is arranged in an annular shape and is arranged on the inner side of the outer sleeve 8 close to the inner shaft 7, and an inlet of the first inner cooling loop 15 is communicated with an outlet of the inner shaft inflow cooling structure 6; a first connecting passage 16, one end of which communicates with the outlet of the first inner cooling circuit 15; the first outer cooling loop 17 is arranged in a ring shape and is arranged on the outer side of the outer sleeve 8, an inlet of the first outer cooling loop 17 is communicated with the other end of the first connecting channel 16, and an outlet of the first outer cooling loop 17 is communicated with the inlet 503 of the second cooling structure. Through setting the overcoat inflow cooling structure to including first interior cooling circuit 15 and first outer cooling circuit 17 to set up first interior cooling circuit 15 in the inboard that overcoat 8 is close to interior axle 7, be convenient for with first interior cooling circuit 15 and interior axle inflow cooling structure 6 intercommunication, set up first outer cooling circuit 17 in the outside of overcoat 8, be convenient for with first outer cooling circuit 17 and second cooling structure 5 intercommunication, set up first interior cooling circuit 15 and first outer cooling circuit 17 all as annular structure simultaneously, can flow the coolant medium along the hoop of overcoat 8, fully realize the cooling to rotary joint. As an alternative embodiment, the outer jacket inflow cooling structure may comprise only the first connection channel 16, one end of the first connection channel 16 being in communication with the outlet of the inner shaft inflow cooling structure 6, and the other end of the first connection channel 16 being in communication with the inlet 503 of the second cooling structure; alternatively, the jacket inflow cooling arrangement comprises only the first connecting channel 16 and the first outer cooling loop 17.
Likewise, the jacket outflow cooling structure in this embodiment includes: the second outer cooling loop 20 is arranged in an annular shape and is arranged on the outer side of the outer sleeve 8, and an inlet of the second outer cooling loop 20 is communicated with an outlet of the third cooling structure; a second connecting passage 19 having one end communicating with an outlet of the second outer cooling circuit 20; the second inner cooling loop 18 is in an annular arrangement and is arranged on the inner side of the outer sleeve 8 close to the inner shaft 7, the inlet of the second inner cooling loop 18 is communicated with the other end of the second connecting channel 19, and the outlet of the second inner cooling loop 18 is communicated with the inlet of the inner shaft outflow cooling structure 9. As an alternative, it is also possible that the jacket outflow cooling arrangement comprises only the second connection channel 19 or that the jacket outflow cooling arrangement comprises only the second connection channel 19 and the second outer cooling circuit 20.
Because first cooling structure and fourth cooling structure communicate with external cooling device's input port and delivery outlet respectively, the coolant that flows in first cooling structure and the fourth cooling structure has certain difference in temperature, and first cooling structure and fourth cooling structure in this embodiment set up at rotary joint internal space, can separate the coolant in first cooling structure and the fourth cooling structure like this, guarantee that the coolant in first cooling structure and the fourth cooling structure can independently cool off, can not influence each other, guarantee the cooling effect. As an alternative embodiment, the first cooling structure and the fourth cooling structure may be disposed adjacent to each other.
Specifically, the inner shaft inflow cooling structure 6 and the inner shaft outflow cooling structure 9 are disposed at a spacing, and the outer sleeve inflow cooling structure and the outer sleeve outflow cooling structure are disposed at a spacing.
As shown in fig. 1, the central shaft 3 in the present embodiment is connected to the outer sleeve 8 of the rotary joint by means of screw fastening, the middle lower part of the outer sleeve 8 and the inner ring of the central shaft 3 are provided with a second outer cooling ring 20, the upper part of the second outer cooling ring 20 is provided with a first outer cooling ring 17, the lower part of the inner ring of the outer sleeve 8 and the inner ring 7 is provided with a second inner cooling ring 18, the upper part of the second inner cooling ring 18 is provided with a first inner cooling ring 15, and the rotary joint which runs at high speed can be cooled besides the cooling medium can be transmitted to the rotary motion part from the non-rotary part.
As shown in fig. 10, the outer sleeve 8 of the rotary joint in the present embodiment is mounted and sealed with the inner shaft 7 by the second bearing 41, the sealing device 23 or the small gap structure, and fixes the inner shaft 7.
As shown in fig. 1, the central shaft 3 in the present embodiment is provided with a fourth connection channel 42, and the outlet of the first outer cooling loop 17 communicates with the inlet 503 of the second cooling structure through the fourth connection channel 42.
The second cooling structure 5 in this embodiment is disposed in a ring shape, and the inlet 503 of the second cooling structure and the outlet 504 of the second cooling structure are located at two sides of the ring center, as shown in fig. 2. By arranging the second cooling structure 5 as an annular structure, the cooling area of the table top 1 is larger, and simultaneously, the inlet 503 of the second cooling structure and the outlet 504 of the second cooling structure are respectively arranged at two sides of the annular center, so that the cooling medium can be ensured to flow out after flowing fully. As an alternative embodiment, the second cooling structure 5 may be provided in a long strip shape, and may specifically include a plurality of bent long strip-shaped channels. As an alternative embodiment, the inlet 503 of the second cooling structure and the outlet 504 of the second cooling structure may be located on the same side of the center of the ring.
The second cooling structure 5 includes a plurality of annular channels 501 in the radial direction, adjacent annular channels 501 are communicated through third connecting channels 502, and adjacent third connecting channels 502 are respectively located at two sides of the annular center. This allows the cooling medium to flow through the annular channel 501 and to enter the annular channel 501 from the other side after flowing sufficiently in the annular channel 501 on the outer side, thereby extending the flow path of the cooling medium and increasing the cooling area for the table top 1. As an alternative embodiment, the adjacent third connecting channels 502 may also be located on the same side of the ring center.
As shown in fig. 1, the third cooling structure in the present embodiment includes: the inner ring flows into the cooling structure 21 and is arranged in an annular shape, and the inlet is communicated with the outlet 504 of the second cooling structure through the seventh connecting channel 24; the inner ring flows out of the cooling structure 22 and is arranged in an annular shape, the inlet is communicated with the outlet of the inner ring inflow cooling structure 21, and the outlet is communicated with the inlet of the second outer cooling loop 20 of the fourth cooling structure.
Through all being annular setting with inner circle inflow cooling structure 21 and inner circle outflow cooling structure 22, can increase the cooling area to the inboard of first bearing 4, and inner circle inflow cooling structure 21 and inner circle outflow cooling structure 22 are in the inboard department that center pin 3 is close to first bearing 4, just in time are in the friction position of first bearing 4 rolling element, can directly export the heat that first bearing 4 produced, realize the accurate control to first bearing 4 temperature. As an alternative embodiment, the inner ring inflow cooling structure 21 and the inner ring outflow cooling structure 22 may be provided in a long shape, and a plurality of inner ring inflow cooling structures and inner ring outflow cooling structures may be provided.
In order to ensure the cooling effect, the inner ring inflow cooling structure 21 and the inner ring outflow cooling structure 22 are arranged at intervals, and the inner ring inflow cooling structure 21 and the inner ring outflow cooling structure 22 are communicated through a gap between the central shaft 3 and the first bearing 4, so that the cooling medium can be directly contacted with the first bearing 4, the cooling effect is improved, and because the gap between the central shaft 3 and the first bearing 4 is smaller, more cooling medium can sufficiently flow in the inner ring inflow cooling structure 21 and the inner ring outflow cooling structure 22, and the cooling effect is ensured.
Since the turntable structure needs to rotate during actual operation, the cooling structure in this embodiment is provided with the sealing device 23, if there is a leakage risk on only one side of the cooling structure, the annular sealing device 23 may be provided on only that side, and if there is a leakage risk on all sides of the cooling structure, the annular sealing device 23 is provided on all sides of the cooling structure, so as to prevent leakage of the cooling medium.
Specifically, as shown in fig. 10, a sealing device 23 is installed below the second outer cooling circuit 20, above the first outer cooling circuit 17, between the first outer cooling circuit 17 and the second outer cooling circuit 20 in the present embodiment for preventing leakage of the cooling medium.
As shown in fig. 11, in this embodiment, an inner ring inflow cooling structure 21 is designed at the middle lower part of the outer circle surface of the inner ring fit of the central shaft 3 and the first bearing 4, an inner ring outflow cooling structure 22 is designed above the inner ring inflow cooling structure 21, cooling medium is separated by a gap therebetween, sealing devices 23 are respectively installed below the inner ring inflow cooling structure 21 and above the inner ring outflow cooling structure 22 and used for preventing cooling medium leakage, and thus, the design positions of the inner ring inflow cooling structure 21 and the inner ring outflow cooling structure 22 are exactly located at the rolling element friction positions of the first bearing 4, so that heat generated by the first bearing 4 can be directly led out, and precise control of the temperature of the first bearing 4 is realized.
As shown in fig. 3 and 4, the center shaft 3 in the present embodiment is further provided with a seventh connecting channel 24 and an eighth connecting channel 40, wherein an inlet of the seventh connecting channel 24 is communicated with an outlet 504 of the second cooling structure, an outlet is communicated with an inlet of the inner ring inflow cooling structure 21, an inlet of the eighth connecting channel 40 is communicated with an outlet of the inner ring outflow cooling structure 22, and an outlet is communicated with an inlet of the second outer cooling circuit 20.
As shown in fig. 1, the upper end surface of the central shaft 3 is designed with a second cooling structure 5, cooling of the table top 1 can be realized through the second cooling structure 5, the table top 1 is fixedly connected with the upper end surface of the central shaft 3 through screws, and the inner side and the outer side of the contact between the screws and the second cooling structure 5 and between the seventh connecting channel 24 and the table top 1 are sealed through a sealing device 23, so that leakage of cooling medium is prevented.
The cooling structure in this embodiment includes: a fifth cooling structure 25 provided on the housing 2, an inlet of the fifth cooling structure 25 being adapted to communicate with an outlet of the external cooling device; the sixth cooling structure 26 is arranged on the contact surface between the bottom of the first bearing 4 and the motor, and the inlet of the sixth cooling structure 26 is communicated with the outlet of the fifth cooling structure 25 through a fifth connecting channel 35; a seventh cooling structure 27 provided on the housing 2, an inlet of the seventh cooling structure 27 communicating with an outlet of the sixth cooling structure 26 through a sixth connection passage 36; an eighth cooling structure 28 provided on a contact surface of the motor and the housing 2, an inlet of the eighth cooling structure 28 being communicated with an outlet of the seventh cooling structure 27; and a ninth cooling structure 29 disposed on the housing 2, wherein an inlet of the ninth cooling structure 29 is communicated with an outlet of the eighth cooling structure 28, and an outlet of the ninth cooling structure 29 is adapted to be communicated with an inlet of an external cooling device, so that cooling medium can flow to the outer side of the first bearing 4 and the motor, the outer side of the first bearing 4 and the cooling structure of the motor are connected in series, the outer side of the first bearing 4 and the motor are cooled simultaneously, and the influence of heat generated by the outer side of the first bearing 4 and the motor on the turntable structure is reduced.
As shown in fig. 7 and 9, an inflow external cooling pipe joint 30 and an inflow external cooling pipe 31 are connected to the inlet of the fifth cooling structure 25, and an outflow external cooling pipe joint 32 and an outflow external cooling pipe 33 are connected to the outlet of the ninth cooling structure 29, and the inflow external cooling pipe 31 and the outflow external cooling pipe 33 are connected to external cooling devices, respectively. Through the sequential arrangement and the channel design of the first bearing 4 outer ring cooling motor, the common cooling of the first bearing 4 and the motor can be realized, the pipeline design special for the cooling of the first bearing 4 outer ring can be saved, and the internal space of the turntable structure can be saved.
As for the specific arrangement of the fifth cooling structure 25, the seventh cooling structure 27, and the ninth cooling structure 29 on the casing 2, in this embodiment, the fifth cooling structure 25, the seventh cooling structure 27, and the ninth cooling structure 29 are arranged at intervals in the circumferential direction of the casing 2, specifically, may be arranged 120 ° apart, or may be arranged at other angles apart, and no limitation is made here.
As shown in fig. 1, the cooling structure in the present embodiment includes a cooling cover 34 disposed at the bottom of the first bearing 4, that is, the cooling cover 34 is disposed below the outer side of the first bearing 4, and the sixth cooling structure 26 is disposed on the cooling cover 34. As an alternative embodiment, the cooling structure may not include the cooling cover 34, but the sixth cooling structure 26 may be provided directly outside the bottom of the first bearing 4 or below the outside of the first bearing 4.
The sixth cooling structure 26 is provided in a ring shape, and can increase the cooling area of the first bearing 4 and improve the cooling effect of the first bearing 4. The lower part of the outer side of the first bearing 4 is fastened with the cooling cover 34 by using screws, and the inner side and the outer side of the sixth cooling structure 26 are respectively provided with sealing devices 23 for sealing so as to prevent leakage of cooling medium.
As shown in fig. 5 and 6, the size at the inlet and outlet of the sixth cooling structure 26 is larger than the other locations, which facilitates the inflow and outflow of the cooling medium. As an alternative embodiment, the sixth cooling structure 26 may have the same circumferential dimension.
As shown in fig. 8, a sixth connecting channel 36 is provided between the inlet of the seventh cooling structure 27 and the outlet of the sixth cooling structure 26, the sixth connecting channel 36 being disposed obliquely, and a side of the sixth connecting channel 36 near the seventh cooling structure 27 being higher than a side of the sixth connecting channel 36 near the sixth cooling structure 26. This allows the cooling medium in the sixth cooling structure 26 to flow out of the sixth cooling structure 26 along the inclined upward path after sufficient heat exchange, ensuring the cooling effect on the first bearing 4.
Similarly, as shown in fig. 7, a fifth connecting channel 35 is disposed between the inlet of the sixth cooling structure 26 and the outlet of the fifth cooling structure 25, the fifth connecting channel 35 is obliquely disposed, and a side of the fifth connecting channel 35 close to the fifth cooling structure 25 is higher than a side of the fifth connecting channel 35 close to the sixth cooling structure 26, so that the cooling medium in the fifth cooling structure 25 can conveniently enter the sixth cooling structure 26 obliquely downward by gravity, the initial flow rate of the cooling medium is increased, the cooling ring cavity can be quickly filled with the cooling medium, and the cooling of the first bearing 4 is realized.
The eighth cooling structure 28 in this embodiment is a cooling channel of the motor, which is disposed on the outer peripheral surface of the motor in a spiral manner, and the inlet of the eighth cooling structure 28 is lower than the outlet of the eighth cooling structure 28, so that the cooling medium entering the eighth cooling structure 28 can flow upwards after flowing fully, and the cooling effect is ensured.
As shown in fig. 1, the motor includes a stator 37 and a rotor 14, the rotor 14 is provided in the stator 37, and an accommodating space is provided in the rotor 14. The turntable structure in this embodiment includes a first connecting member 38 and a second connecting member 39, the first connecting member 38 is disposed above the rotor 14, and connects the central shaft 3 and the rotor 14 by fastening with screws, and a part of the second connecting member 39 is disposed below the stator 37, and connects the stator 37 and the housing 2 by screws.
The rotor 14 of the motor outputs torque and rotation speed to drive the table top 1 to operate through the first bearing 4 and the central shaft 3, the table top 1 is responsible for fixing a tool or a workpiece, and the rotary joint can transmit media and pressure required by the tool clamp of the table top 1 to the table top 1.
The turret structure in this embodiment comprises an encoder mounted in the turret structure for position monitoring.
The casing 2 in this embodiment is a main supporting structure of a turntable structure, the outer ring of the first bearing 4 is fastened at the mounting surface of the casing 2 and the first bearing 4 by screws, and the inner ring of the first bearing 4 is connected with the lower end surface of the central shaft 3 by screws.
The turntable structure in this embodiment mainly includes two cooling passages, i.e., an inner ring cooling passage and an outer ring cooling passage, and the flow path of the cooling medium is specifically as follows:
an inner ring cooling passage:
External cooling device- & gtinner shaft inflow cooling structure 6- & gtfirst inner cooling loop 15- & gtfirst connecting channel 16- & gtfirst outer cooling loop 17- & gtsecond cooling structure 5- & gtseventh connecting channel 24- & gtinner ring inflow cooling structure 21- & gtinner ring outflow cooling structure 22- & gteighth connecting channel 40- & gtsecond outer cooling loop 20- & gtsecond connecting channel 19- & gtsecond inner cooling loop 18- & gtinner shaft outflow cooling structure 9- & gtexternal cooling device.
An outer ring cooling passage:
External cooling device→fifth cooling structure 25→fifth connecting passage 35→sixth cooling structure 26→sixth connecting passage 36→seventh cooling structure 27→eighth cooling structure 28→ninth cooling structure 29→external cooling device.
The external cooling means for the two cooling passages may be the same or different, and are not so limited.
According to the turntable structure in the embodiment, on the basis of not restricting the turntable structure, through special cooling structure design and cooling sequence arrangement, the cooling of the inner side and the outer side of the first bearing 4, the motor, the rotary joint, the table top 1, the central shaft 3 and other key parts can be realized, and the temperature of the key heating sources such as the table top 1, the first bearing 4 and the motor is controlled, so that the influence of the temperature on the turntable structure is reduced, the number of cooling pipelines is reduced, the high precision of the turntable structure is realized, the reliability of the turntable structure is improved, and the service life of the turntable structure is prolonged.
According to an embodiment of the present invention, in another aspect, there is also provided a machine tool including: the turntable structure described above.
Specifically, the machine tool in the present embodiment is a numerical control machine tool.
Although embodiments of the present invention have been described in connection with the accompanying drawings, various modifications and variations may be made by those skilled in the art without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope of the invention as defined by the appended claims.
Claims (9)
1. A turntable structure, comprising:
the table top (1), the center of the table top (1) is provided with a first installation space;
The shell (2) is arranged below the table top (1);
The central shaft (3) is arranged in the shell (2), the upper end of the central shaft (3) is fixedly connected with the bottom of the table top (1), a second installation space is formed in the axis of the central shaft (3), and the second installation space is communicated with the first installation space;
a first bearing (4) provided between the housing (2) and the central shaft (3);
The rotary joint is arranged in the first installation space and the second installation space and comprises an inner shaft (7) and an outer sleeve (8);
a cooling structure adapted to circulate a cooling medium therein, the cooling structure comprising:
the first cooling structure is arranged on the rotary joint, and an inlet of the first cooling structure is suitable for being communicated with an output port of the external cooling device;
A second cooling structure (5) arranged on the contact surface of the central shaft (3) and the table top (1), wherein an inlet (503) of the second cooling structure is communicated with an outlet of the first cooling structure;
A third cooling structure arranged on the contact surface of the central shaft (3) and the first bearing (4), wherein an inlet of the third cooling structure is communicated with an outlet (504) of the second cooling structure;
a fourth cooling structure provided on the rotary joint, an inlet of the fourth cooling structure communicating with an outlet of the third cooling structure, the outlet of the fourth cooling structure being adapted to communicate with an inlet of the external cooling device;
The second cooling structure (5) is in an annular shape, and an inlet (503) of the second cooling structure and an outlet (504) of the second cooling structure are respectively positioned at two sides of the annular center;
the third cooling structure includes:
the inner ring flows into the cooling structure (21) and is annularly arranged, and an inlet is communicated with an outlet (504) of the second cooling structure through a seventh connecting channel (24);
The inner ring flows out of the cooling structure (22) and is arranged in an annular shape, the inlet is communicated with the outlet of the inner ring inflow cooling structure (21), and the outlet is communicated with the inlet of the fourth cooling structure.
2. Turntable structure according to claim 1, characterized in that,
The first cooling structure includes:
An inner shaft inflow cooling structure (6) provided on the inner shaft (7), the inlet being adapted to communicate with the output of the external cooling device;
the outer sleeve flows into the cooling structure and is arranged on the outer sleeve (8), and the inlet is communicated with the outlet of the inner shaft inflow cooling structure (6);
And/or, the fourth cooling structure comprises:
the outer sleeve flows out of the cooling structure and is arranged on the outer sleeve (8), and the inlet is communicated with the outlet of the third cooling structure;
An inner shaft outflow cooling structure (9) arranged on the inner shaft (7), an inlet communicated with an outlet of the outer sleeve outflow cooling structure, and an outlet adapted to be communicated with an input port of the external cooling device.
3. Turntable structure according to claim 2, characterized in that,
The jacket inflow cooling structure comprises:
the first inner cooling loop (15) is annularly arranged and is arranged on the inner side of the outer sleeve (8) close to the inner shaft (7), and an inlet of the first inner cooling loop (15) is communicated with an outlet of the inner shaft inflow cooling structure (6);
A first connecting channel (16), one end of which communicates with the outlet of the first inner cooling circuit (15);
The first outer cooling loop (17) is annularly arranged and is arranged on the outer side of the outer sleeve (8), an inlet of the first outer cooling loop (17) is communicated with the other end of the first connecting channel (16), and an outlet of the first outer cooling loop (17) is communicated with an inlet (503) of the second cooling structure;
And/or, the jacket outflow cooling structure comprises:
the second outer cooling loop (20) is annularly arranged and is arranged at the outer side of the outer sleeve (8), and an inlet of the second outer cooling loop (20) is communicated with an outlet of the third cooling structure;
A second connecting channel (19), one end of which is communicated with the outlet of the second outer cooling loop (20);
The second inner cooling loop (18) is arranged in an annular shape and is arranged on the inner side of the outer sleeve (8) close to the inner shaft (7), an inlet of the second inner cooling loop (18) is communicated with the other end of the second connecting channel (19), and an outlet of the second inner cooling loop (18) is communicated with an inlet of the inner shaft outflow cooling structure (9).
4. Turntable structure according to claim 1, characterized in that said first cooling structure and said fourth cooling structure are both provided on said rotary joint and are arranged at intervals along the circumference of said rotary joint;
And/or, the second cooling structure (5) and the third cooling structure are both arranged on the central shaft (3);
And/or the cooling structure is provided with annular sealing means (23) adapted to preventing leakage of the cooling medium.
5. Turntable structure according to claim 1, characterized in that the second cooling structure (5) comprises a plurality of annular channels (501) in radial direction, adjacent ones of the annular channels (501) being in communication with each other via third connecting channels (502), and adjacent ones of the third connecting channels (502) being located on either side of the ring core, respectively.
6. A turret structure according to any one of claims 1-4, characterized in that it comprises a motor, provided in the housing (2), below the first bearing (4), the rotor (14) of which is fixedly connected to the central shaft (3);
the cooling structure includes:
A fifth cooling structure (25) provided on the housing (2), an inlet of the fifth cooling structure (25) being adapted to communicate with an outlet of the external cooling device;
A sixth cooling structure (26) arranged on the contact surface between the bottom of the first bearing (4) and the motor, wherein an inlet of the sixth cooling structure (26) is communicated with an outlet of the fifth cooling structure (25) through a fifth connecting channel (35);
A seventh cooling structure (27) provided on the housing (2), an inlet of the seventh cooling structure (27) being in communication with an outlet of the sixth cooling structure (26) through a sixth connection channel (36);
an eighth cooling structure (28) arranged on the contact surface of the motor and the shell (2), wherein an inlet of the eighth cooling structure (28) is communicated with an outlet of the seventh cooling structure (27);
a ninth cooling structure (29) provided on the housing (2), an inlet of the ninth cooling structure (29) being in communication with an outlet of the eighth cooling structure (28), an outlet of the ninth cooling structure (29) being adapted to communicate with an inlet of the external cooling device.
7. Turret structure according to claim 6, characterized in that said sixth connecting channel (36) is arranged inclined, the side of said sixth connecting channel (36) close to said seventh cooling structure (27) being higher than the side of said sixth connecting channel (36) close to said sixth cooling structure (26);
And/or, the fifth connecting channel (35) is obliquely arranged, and one side of the fifth connecting channel (35) close to the fifth cooling structure (25) is higher than one side of the fifth connecting channel (35) close to the sixth cooling structure (26).
8. A turret structure according to claim 6, characterized in that said cooling structure comprises a cooling cover (34) provided at the bottom of said first bearing (4), said sixth cooling structure (26) being provided on said cooling cover (34);
And/or an accommodating space is arranged in the rotor (14) of the motor, and a connecting pipeline between the rotary joint and the external cooling device is arranged in the accommodating space;
And/or, the sixth cooling structure (26) is arranged in a ring shape;
And/or, the eighth cooling structure (28) is spirally arranged on the motor;
and/or the inlet of the eighth cooling structure (28) is lower than the outlet of the eighth cooling structure (28).
9. A machine tool, comprising:
turntable structure according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202410479794.8A CN118060934B (en) | 2024-04-22 | 2024-04-22 | Revolving stage structure and lathe |
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| CN118060934B true CN118060934B (en) | 2024-07-05 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212441446U (en) * | 2020-05-25 | 2021-02-02 | 成都慧磁电子材料有限公司 | Water-cooling jacket of vertical ball mill |
| CN117047554A (en) * | 2023-09-11 | 2023-11-14 | 赫勒精机(浙江)有限公司 | Turntable mechanism and machining center |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5239892A (en) * | 1990-08-27 | 1993-08-31 | Mitutoyo Corporation | Rotating device |
| DE4307482A1 (en) * | 1993-03-10 | 1994-09-22 | Max Rhodius Gmbh | Machine tool |
| CN101680488B (en) * | 2007-03-30 | 2014-01-01 | Thk株式会社 | Rotation bearing, rotation table device, and method of dermining table diameter |
| CN218575531U (en) * | 2022-09-05 | 2023-03-07 | 苏州一诺机器人有限公司 | CNC turning revolving stage |
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- 2024-04-22 CN CN202410479794.8A patent/CN118060934B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212441446U (en) * | 2020-05-25 | 2021-02-02 | 成都慧磁电子材料有限公司 | Water-cooling jacket of vertical ball mill |
| CN117047554A (en) * | 2023-09-11 | 2023-11-14 | 赫勒精机(浙江)有限公司 | Turntable mechanism and machining center |
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