CN114310658A - Automatic grinding clamp holder for high-precision spline - Google Patents
Automatic grinding clamp holder for high-precision spline Download PDFInfo
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- CN114310658A CN114310658A CN202111681220.1A CN202111681220A CN114310658A CN 114310658 A CN114310658 A CN 114310658A CN 202111681220 A CN202111681220 A CN 202111681220A CN 114310658 A CN114310658 A CN 114310658A
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- supporting seat
- disc
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- roller
- shaped cam
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- 238000009434 installation Methods 0.000 claims abstract description 3
- 238000012856 packing Methods 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 7
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 238000012545 processing Methods 0.000 description 10
- 230000001276 controlling effect Effects 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007730 finishing process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000010862 gear shaping Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The automatic grinding clamp holder comprises a disc-shaped cam roller mechanism, a clamping shaft assembly, a sliding assembly, a supporting seat, a limiting device, a pressure adjusting assembly, an installation frame and a gauge clamp; the grinding clamp holder is arranged on a lathe tool rest, the clamp holder clamps a spline grinder, a machine tool spindle three-grip clamps a workpiece, and the grinder extends into a part spline. The clamper realizes the axial linear reciprocating motion of the rotary motion of the machine tool through a cam mechanism, thereby achieving the purpose of automatic grinding. The grinder is provided with a pressure automatic fitting mechanism and a dial indicator mounting position in the radial direction and is used for applying radial grinding pressure and monitoring grinding precision in real time.
Description
Technical Field
The invention belongs to the technical field of process equipment for automatically grinding and clamping splines, and particularly relates to a high-precision spline automatic grinding clamp.
Technical Field
At present, the high-precision spline is ground by means of a professional grinding machine or manual processing with abundant experience, the grinding machine is suitable for professional large-batch grinding, the efficiency is high, and the cost is high. Manual grinding is common in small-batch spline grinding, and has the defects of low cost, high adaptability and the like, but unstable processing quality, low efficiency and the like.
Technical scheme
The purpose of the invention is as follows: the utility model provides an automatic holder that grinds of high accuracy spline for solve the small batch, the difficult problem of high accuracy spline grinding process. The invention has high machine tool adaptability, and a common lathe can finish high-precision grinding; the efficiency is high, and automatic processing can be realized; the precision is high, and the grinding amount and the allowance can be monitored in real time; the invention has low cost, can be put into once after the manufacture is finished, can grind and process a plurality of batches for a long time, and has very low cost for grinding and processing a single piece.
The technical scheme of the invention is as follows:
a high-precision spline automatic grinding clamp comprises a disc-shaped cam roller mechanism, a clamping shaft assembly, a sliding assembly, a supporting seat 6, a limiting device, a pressure adjusting assembly, a mounting frame 22 and a meter clamp 23; the clamping shaft assembly is arranged in the supporting seat 6, the supporting seat 6 is slidably arranged in the mounting frame 22 through a sliding assembly, the disc-shaped cam roller mechanism is arranged at the shaft end of the clamping shaft assembly and comprises a disc-shaped cam 3 and a roller 4, the roller 4 is arranged on the left side of the supporting seat 6 through a pin 5, the roller 4 can rotate along the axis of the pin 5, the roller 4 is in contact with the disc-shaped cam 3, and is rotated through the disc-shaped cam 3 and is in contact with the roller 4 to drive the clamping shaft assembly to reciprocate along the axis of the clamping shaft assembly; the centre gripping axle subassembly pass through bearing 9 and support seat 6 contact, stop device and table press from both sides 23 symmetrical installing in installing frame 22 both sides, and stop device and table press from both sides 23 tip and support seat 6 contact, displacement about restriction support seat 6, pressure regulating assembly installs in installing frame 22 side, contacts with support seat 6, provides grinding power to support seat 6, can drive and control about support seat 6, support seat 6 drives the slip subassembly and slides along its axis direction in installing frame 22 is inside.
Further, the disc-shaped cam 1 is of a disc-shaped cam structure, and the annular thickness of the disc surface of the disc-shaped cam is increased from small to large and then decreased from large to small.
Further, the centre gripping axle subassembly includes centre gripping axle 1, sleeve 7, ball 8, bearing 9, bush one 10, spring one 12, packing ring 13, nut one 14, centre gripping axle 1 be the hollow shaft, bush one 10 is in the outside of centre gripping axle 1 sets up ball 8 between bush one 10 and the centre gripping axle 1, and centre gripping axle 1 accessible ball 8 removes in bush one 10, sleeve 7 cover in the outside of bush one 10, sleeve 7 are used for fixed bearing 9 inner circle, and spring one 12 covers at the right-hand member of centre gripping axle 1, and the tip at bush one 10 is contradicted to spring one 12 one end, and spring one 12 other end is connected on the packing ring 13 of 1 right-hand member of centre gripping axle, and packing ring 13 is fixed through nut one 14.
Further, the sliding assembly comprises a second bushing 19, a second ball 20 and a shaft 21, two ends of the shaft 21 are fixed on the frame 22, the second bushing 19 is arranged outside the shaft 21, and the second ball 20 is arranged between the shaft 21 and the second bushing 19.
Further, the limiting device comprises a bolt 15 and a second nut 16, the end portion of the bolt 15 is in contact with the supporting seat 6, and the second nut 16 is arranged on the bolt and located outside the supporting seat 6.
Further, the pressure regulating assembly comprises a nut 17 and a second spring 18, the nut 17 is arranged on the supporting seat 6, one end of the second spring 18 abuts against the bottom of the nut 17, and the other end of the second spring contacts with the supporting seat 6.
Further, a sealing ring 24 is included, and the sealing ring 24 is arranged between the supporting seat 6 and the bushing 10.
Further, the device also comprises a rear cover 11, and the rear cover 11 is arranged at the rear part of the mounting frame 22.
Advantageous effects
In an aircraft product, after processing involute parts such as a gear spline with high precision and finishing processes such as hobbing and gear shaping, finish machining such as grinding and polishing is generally required. At present, most of grinding operations are still under the condition of purely manual or semi-automatic manual participation, and the problems of low grinding precision, low efficiency and the like caused by human factors can occur. In order to solve the problems, the automatic grinding machine solves the requirements of automatic grinding and high precision, and is not limited by the capability of operators. The invention greatly improves the labor efficiency and the processing precision and the like.
The grinding holder is arranged on a lathe tool rest, the holder holds a spline grinder, a machine tool spindle of the spline grinder is three-grabbed to clamp a workpiece, and the grinder extends into a part spline. The clamper realizes the axial linear reciprocating motion of the rotary motion of the machine tool through a cam mechanism, thereby achieving the purpose of automatic grinding. The grinder is provided with a pressure automatic fitting mechanism and a dial indicator mounting position in the radial direction and is used for applying radial grinding pressure and monitoring grinding precision in real time.
Drawings
FIG. 1 is a first general view of the construction of the holder of the present invention;
FIG. 2 is a general view of the structure of the holder of the present invention;
FIG. 3 is a cross-sectional view of the disc cam of the present invention;
FIG. 4 is a top view of the disc cam of the present invention;
FIG. 5 is a development view of the disc cam of the present invention;
FIG. 6 is a schematic view of a clamp shaft configuration of the present invention;
FIG. 7 is a schematic view of the supporting seat of the present invention.
Detailed Description
As shown in fig. 1 and 2, the automatic grinding clamp for the high-precision spline comprises a disc-shaped cam roller mechanism, a clamping shaft assembly, a sliding assembly, a supporting seat 6, a limiting device, a pressure adjusting assembly, a mounting frame 22 and a meter clamp 23; the clamping shaft assembly is arranged in the supporting seat 6, the supporting seat 6 is slidably arranged in the mounting frame 22 through a sliding assembly, the disc-shaped cam roller mechanism is arranged at the shaft end of the clamping shaft assembly and comprises a disc-shaped cam 3 and a roller 4, the roller 4 is arranged on the left side of the supporting seat 6 through a pin 5, the roller 4 can rotate along the axis of the pin 5, the roller 4 is in contact with the disc-shaped cam 1 and rotates through the disc-shaped cam 1, and the roller 4 is in contact with the roller 4 to drive the clamping shaft assembly to reciprocate along the axis of the clamping shaft assembly; the centre gripping axle subassembly pass through bearing 9 and support seat 6 contact, stop device and table press from both sides 23 symmetrical installing in installing frame 22 both sides, and stop device and table press from both sides 23 tip and support seat 6 contact, displacement about restriction support seat 6, pressure regulating assembly installs in installing frame 22 side, contacts with support seat 6, provides grinding power to support seat 6, can drive and control about support seat 6, support seat 6 drives the slip subassembly and slides along its axis direction in installing frame 22 is inside.
Wherein:
the disk cam roller mechanism includes: a disc cam 3, a roller 4, a pin 5;
the clamping shaft assembly comprises: the clamping device comprises a clamping shaft 1, a sleeve 7, a first ball 8, a bearing 9, a first bushing 10, a first spring 12, a washer 13 and a first nut 14;
the sliding assembly includes: a second bushing 19, a second ball 20 and a shaft 21;
the limiting device comprises: a bolt 15 and a second nut 16;
the pressure regulating assembly includes: a nut 17 and a second spring 18.
Further, the disc-shaped cam 1 is of a disc-shaped cam structure, and the annular thickness of the disc surface of the disc-shaped cam is increased from small to large and then decreased from large to small.
Further, the centre gripping axle subassembly includes centre gripping axle 1, sleeve 7, ball 8, bearing 9, bush one 10, spring one 12, packing ring 13, nut one 14, centre gripping axle 1 be the hollow shaft, bush one 10 is in the outside of centre gripping axle 1 sets up ball 8 between bush one 10 and the centre gripping axle 1, and centre gripping axle 1 accessible ball 8 removes in bush one 10, sleeve 7 cover in the outside of bush one 10, sleeve 7 are used for fixed bearing 9 inner circle, and spring one 12 covers at the right-hand member of centre gripping axle 1, and the tip at bush one 10 is contradicted to spring one 12 one end, and spring one 12 other end is connected on the packing ring 13 of 1 right-hand member of centre gripping axle, and packing ring 13 is fixed through nut one 14.
Further, the sliding assembly comprises a second bushing 19, a second ball 20 and a shaft 21, two ends of the shaft 21 are fixed on the frame 22, the second bushing 19 is arranged outside the shaft 21, and the second ball 20 is arranged between the shaft 21 and the second bushing 19.
Further, the limiting device comprises a bolt 15 and a second nut 16, the end portion of the bolt 15 is in contact with the supporting seat 6, and the second nut 16 is arranged on the bolt and located outside the supporting seat 6.
Further, the pressure regulating assembly comprises a nut 17 and a second spring 18, the nut 17 is arranged on the supporting seat 6, one end of the second spring 18 abuts against the bottom of the nut 17, and the other end of the second spring contacts with the supporting seat 6.
Further, a sealing ring 24 is included, and the sealing ring 24 is arranged between the supporting seat 6 and the bushing 10.
Further, the device also comprises a rear cover 11, and the rear cover 11 is arranged at the rear part of the mounting frame 22.
The disk cam roller mechanism includes: parts such as disc cam 3, roller 4, pin 5, its main function is to convert the rotary motion of lathe into axial reciprocating motion, drives the mill of centre gripping through reciprocating motion, realizes the effect that the mill ground the part.
The clamping shaft assembly comprises: the clamping device comprises components such as a clamping shaft 1, a sleeve 7, a ball I8, a bearing 9, a bushing I10, a spring I12, a washer 13, a nut I14 and the like. The grinding machine is mainly used for clamping a grinder, an arc groove is formed in a clamping shaft 1, a ball I8 and a bearing 9 are mounted, so that the rotary motion and the high-precision reciprocating motion of a flexible clamping shaft assembly can be realized, the rotary motion of the grinding machine and the high-precision reciprocating motion of a machine tool main shaft (part) are kept synchronous, and the grinding machine and the part to be machined are relatively static in the circumferential direction and reciprocate in the axial direction; the roller 4 is ensured to be attached to the disc-shaped cam 3 through the spring I12 at the right end, the theoretical motion of the continuously controllable cam unfolding line is realized, and meanwhile, the spring I12 is also a main power source of the reciprocating motion return stroke.
The sliding assembly includes: a second bushing 19, a second ball 20, a shaft 21 and the like. The main function is to ensure that the clamping shaft assembly arranged in the supporting seat 6 can keep high-precision radial left and right movement, and the left and right movement is the feeding direction of the grinding allowance.
The support seat 6 mainly functions to mount important parts such as the sliding assembly, the roller 4, the bearing 9, the rear cover 11 and the like.
The main function of the rear cover 11 is to mount the holder to the machine tool holder base via the tool holder.
The limiting device comprises a bolt 15, a second nut 16 and other parts, and is mainly used for limiting grinding allowance and preventing excessive grinding.
The pressure adjusting component comprises a nut 17, a second spring 18 and other parts, and is mainly used for adjusting the applied grinding pressure, forming resultant force with the spring pressure of the dial indicator and comprehensively controlling the grinding pressure. The grinding pressure is adjusted to control the processing efficiency and the processing quality. The pressure applied is the main source of grinding pressure.
The gauge clamp 23 is mainly used for installing a dial gauge and used for detecting real-time grinding amount, comparing the grinding allowance and adjusting and controlling the final grinding amount together with a limiting device. The gauge spring pressure is also an important source of grinding pressure.
When the grinding device is used, a matched spline grinder (grinding rod) is arranged in the clamping shaft 1 for fixing, the dial indicator is arranged in the indicator clamp 23 of the clamp holder, the clamp holder is arranged on a tool holder seat of a machine tool through a tool holder, and the center height is adjusted. And (4) mounting the spline product to be ground on a rotary main shaft of a machine tool, and finding the center position. Moving the knife holder lets the grinder enter the spline part completely and ensures that no interference occurs during the entire grinding stroke. And the pressure of a second spring 18 of the pressure regulating device is regulated to ensure that the grinder and the spline product are in a just contact position and return to zero. And adjusting the limiting device step by step according to the machining allowance. And (5) observing the reading of the dial indicator after grinding, controlling the grinding speed and quality, and detaching the part and inspecting after reaching the limiting device. If the grinding still has allowance, the limiting device needs to be readjusted or the grinder needs to be replaced.
The disc-shaped cam 3 converts the rotary motion of the machine tool into the reciprocating motion required by grinding;
the clamping shaft assembly clamps the grinder, so that the grinder can rotate freely, the roller 4 can be always attached to the profile of the disc cam 3, reciprocating motion return power is provided, and reciprocating motion is completed;
the whole floating structure that is after slip subassembly and supporting seat 6 installation guarantees through ball two 20 and axle 21 that it can drive centre gripping axle 1 and control the high accuracy and slide together to realize the feeding of grinding.
The limiting device controls the grinding allowance, and the machining amount is not more than the grinding allowance.
The pressure adjusting device realizes the adjustment of the grinding pressure by adjusting the second 18 tightening force of the spring pressing, and controls the processing efficiency and the processing quality by adjusting the grinding pressure
The meter clamp 23 monitors the grinding amount in real time, compares the grinding allowance, and adjusts and controls the final grinding amount together with the limiting device.
Claims (8)
1. The utility model provides an automatic grinding holder of high accuracy spline which characterized in that: comprises a disc-shaped cam roller mechanism, a clamping shaft assembly, a sliding assembly, a supporting seat (6), a limiting device, a pressure adjusting assembly, a mounting frame (22) and a meter clamp (23); the clamping shaft assembly is arranged in the supporting seat (6), the supporting seat (6) is slidably arranged in the mounting frame (22) through a sliding assembly, the disc-shaped cam roller mechanism is arranged at the shaft end of the clamping shaft assembly and comprises a disc-shaped cam (3) and a roller (4), the roller (4) is arranged on the left side of the supporting seat (6) through a pin (5), the roller (4) can rotate along the axis of the pin (5), the roller (4) is in contact with the disc-shaped cam (1), and the roller (4) rotates through the disc-shaped cam (1) and is in contact with the roller (4) to drive the clamping shaft assembly to reciprocate along the axis of the roller; the centre gripping axle subassembly pass through bearing (9) and support seat (6) contact, stop device and table press from both sides installing in installing frame (22) both sides of (23) symmetry, and the tip and the supporting seat (6) contact of stop device and table clamp (23), displacement about restriction supporting seat (6), pressure regulating assembly installs in installing frame (22) side, contacts with supporting seat (6), provides grinding power to supporting seat (6), can drive and control about supporting seat (6), supporting seat (6) drive the slip subassembly and slide along its axis direction in installing frame (22) inside.
2. The automatic grinding holder for the high-precision spline according to claim 1, characterized in that: the disc-shaped cam (3) is of a disc-shaped cam structure, and the annular thickness of the disc surface of the disc-shaped cam is increased from small to large and then decreased from large to small.
3. The automatic grinding holder for the high-precision spline according to claim 1, characterized in that: the clamping shaft component comprises a clamping shaft (1), a sleeve (7), a first ball (8), a bearing (9), a first bushing (10), a first spring (12), a washer (13) and a first nut (14), the clamping shaft (1) is a hollow shaft, the first bushing (10) is sleeved outside the clamping shaft (1), the first ball (8) is arranged between the first bushing (10) and the clamping shaft (1), the clamping shaft (1) can move in the first bushing (10) through the first ball (8), sleeve (7) cover in the outside of bush (10), sleeve (7) are used for fixed bearing (9) inner circle, the right-hand member at centre gripping axle (1) is overlapped in spring (12), spring (12) one end is contradicted at bush (10) tip, on packing ring (13) of clamping axle (1) right-hand member was connected to spring (12) other end, packing ring (13) are fixed through nut (14).
4. The automatic grinding holder for the high-precision spline according to claim 1, characterized in that: the sliding assembly comprises a second bushing (19), a second ball (20) and a shaft (21), two ends of the shaft (21) are fixed on the frame (22), the second bushing (19) is arranged outside the shaft (21), and the second ball (20) is arranged between the shaft (21) and the second bushing (19).
5. The automatic grinding holder for the high-precision spline according to claim 1, characterized in that: the limiting device comprises a bolt (15) and a second nut (16), the end of the bolt (15) is in contact with the supporting seat (6), and the second nut (16) is arranged on the bolt and located outside the supporting seat (6).
6. The automatic grinding holder for the high-precision spline according to claim 1, characterized in that: the pressure adjusting assembly comprises a screw cap (17) and a second spring (18), the screw cap (17) is arranged on the supporting seat (6), one end of the second spring (18) is abutted to the bottom of the screw cap (17), and the other end of the second spring is contacted with the supporting seat (6).
7. A high precision spline automatic grinding holder according to claim 3, characterized in that: the sealing device further comprises a sealing ring (24), and the sealing ring (24) is arranged between the supporting seat (6) and the lining (10).
8. The automatic grinding holder for the high-precision spline according to claim 1, characterized in that: the novel bicycle frame further comprises a rear cover (11), and the rear cover (11) is installed at the rear part of the installation frame (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111681220.1A CN114310658A (en) | 2021-12-30 | 2021-12-30 | Automatic grinding clamp holder for high-precision spline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111681220.1A CN114310658A (en) | 2021-12-30 | 2021-12-30 | Automatic grinding clamp holder for high-precision spline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114310658A true CN114310658A (en) | 2022-04-12 |
Family
ID=81023093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111681220.1A Pending CN114310658A (en) | 2021-12-30 | 2021-12-30 | Automatic grinding clamp holder for high-precision spline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114310658A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2612734A (en) * | 1948-10-25 | 1952-10-07 | Taig William Adams | Apparatus for grinding the bevel edge of spectacle and other lenses |
| CN201161359Y (en) * | 2007-07-12 | 2008-12-10 | 唐美春 | Grinding mill for link lever tooth surface of diesel engine |
| CN102240954A (en) * | 2010-05-11 | 2011-11-16 | 单树峰 | Handheld type combined motion hole grinding head |
| CN106141889A (en) * | 2016-08-25 | 2016-11-23 | 廊坊市北方天宇机电技术有限公司 | Oil pump gear axle spiral-flow type centrifugal barrel finishing fitting device and method |
| CN108296891A (en) * | 2018-01-10 | 2018-07-20 | 宁波海蔓汽车科技有限公司 | Auto-parts grinding device |
| CN108608263A (en) * | 2016-12-09 | 2018-10-02 | 韩邹华 | Enveloping worm hob spade milling machine tool |
| CN110871377A (en) * | 2018-08-28 | 2020-03-10 | 中核苏阀科技实业股份有限公司 | Small-caliber top-mounted ball valve body grinding tool |
| CN111906682A (en) * | 2020-08-08 | 2020-11-10 | 南通新冯精密机械有限公司 | High-efficient honing machine constructs |
-
2021
- 2021-12-30 CN CN202111681220.1A patent/CN114310658A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2612734A (en) * | 1948-10-25 | 1952-10-07 | Taig William Adams | Apparatus for grinding the bevel edge of spectacle and other lenses |
| CN201161359Y (en) * | 2007-07-12 | 2008-12-10 | 唐美春 | Grinding mill for link lever tooth surface of diesel engine |
| CN102240954A (en) * | 2010-05-11 | 2011-11-16 | 单树峰 | Handheld type combined motion hole grinding head |
| CN106141889A (en) * | 2016-08-25 | 2016-11-23 | 廊坊市北方天宇机电技术有限公司 | Oil pump gear axle spiral-flow type centrifugal barrel finishing fitting device and method |
| CN108608263A (en) * | 2016-12-09 | 2018-10-02 | 韩邹华 | Enveloping worm hob spade milling machine tool |
| CN108296891A (en) * | 2018-01-10 | 2018-07-20 | 宁波海蔓汽车科技有限公司 | Auto-parts grinding device |
| CN110871377A (en) * | 2018-08-28 | 2020-03-10 | 中核苏阀科技实业股份有限公司 | Small-caliber top-mounted ball valve body grinding tool |
| CN111906682A (en) * | 2020-08-08 | 2020-11-10 | 南通新冯精密机械有限公司 | High-efficient honing machine constructs |
Non-Patent Citations (1)
| Title |
|---|
| 杨建春: "《长度计量小经验汇编》", 国防工业出版社, pages: 188 - 189 * |
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Application publication date: 20220412 |