CN215942154U

CN215942154U - Positioning fixture for machining

Info

Publication number: CN215942154U
Application number: CN202120727922.8U
Authority: CN
Inventors: 冯永军; 李伟汉; 张晓云; 徐俊飞; 张可维
Original assignee: University of Science and Technology Liaoning USTL
Current assignee: Dalian Lianghui Precision Machinery Co.,Ltd.
Priority date: 2021-04-09
Filing date: 2021-04-09
Publication date: 2022-03-04
Anticipated expiration: 2031-04-09

Abstract

The utility model discloses a positioning clamp for machining, which comprises a base and a lifting mechanism, wherein a screw rod is arranged at the central axis in the base, one side of the inner wall of the screw rod penetrates through the base and extends to one side of the outer wall of the base, a first bearing is arranged at the joint of the screw rod and the base, and the screw rod is rotatably connected with the base through the first bearing. According to the utility model, the two movable lantern rings are driven to move towards opposite directions or opposite directions when the screw rod rotates, the adjusting rotating shaft is rotated according to the clamping position of the workpiece, the screw rod is lifted, the heights of the clamping piece and the fixing piece are adjusted, the clamping piece and the fixing piece clamp and fix the workpiece, the positioning fixing seat is inserted into the adjusting groove to rotate, the clamp fixing seat is fixed on the workbench through the screw, and meanwhile, the clamp fixing seat is in rotating fit with the workbench, so that the distance, the height and the angle between the fixing piece and the clamping piece can be conveniently adjusted, meanwhile, the clamp can adapt to parts with different sizes, and the applicability is improved.

Description

Positioning fixture for machining

Technical Field

The utility model relates to the technical field of machining, in particular to a positioning clamp for machining.

Background

The machining is a process of changing the overall dimension or performance of a workpiece through mechanical equipment, the machining is a process of changing the overall dimension or performance of the workpiece through the mechanical equipment, the machining can be divided into cutting machining and pressure machining according to differences in machining modes, the machined workpiece needs to be fixed in the machining, a positioning clamp needs to be used during fixing, and the workpiece is convenient to machine after being fixed through the clamp.

The existing clamp for machining is usually fixedly installed and can only be adjusted left and right simply, the position of a workpiece cannot be flexibly adjusted after the workpiece is clamped, the position of the clamp and the position of a positioning structure are difficult to adjust, and the size of the clamp is difficult to replace, so that the clamp cannot be applied to machining of other workpieces, the use performance of the clamp is reduced, and the labor amount of a user is increased.

Therefore, it is necessary to provide a positioning jig for machining to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a positioning clamp for machining, wherein a positioning fixing seat is inserted into an adjusting groove and then rotated, the clamping fixing seat is fixed on a workbench through a screw, the clamping fixing seat is rotationally matched with the workbench to facilitate the adjustment of the angle of the workbench, the clamp can conveniently adjust the distance, the height and the angle between a fixing piece and a clamping piece, an adjusting rotating shaft is rotated according to the clamping position of a workpiece to enable a screw rod to ascend and descend, and the heights of the clamping piece and the fixing piece are adjusted, so that the defects in the technology are overcome.

In order to achieve the above purpose, the utility model provides the following technical scheme: the positioning fixture for machining comprises a base and a lifting mechanism, wherein a screw rod is arranged at the central axis in the base, one side of the inner wall of the screw rod penetrates through the base and extends to one side of the outer wall of the base, a first bearing is arranged at the joint of the screw rod and the base, the screw rod is rotatably connected with the base through the first bearing, a driving motor is arranged at one side of the outer wall of the base, the output shaft of the driving motor corresponds to one side of the outer wall of the screw rod, moving lantern rings are sleeved at two sides of the outer wall of the screw rod, the two moving lantern rings are symmetrically arranged around the central axis of the base, sliding grooves are formed in two sides of the inner wall of the base, and the lifting mechanism is arranged at the top of each moving lantern ring;

the lifting mechanism comprises a movable cylinder, the movable cylinder is fixedly connected with a movable sleeve ring, the movable cylinder penetrates through a sliding groove and extends to the top end of the outer wall of the base, a lead screw is movably connected inside the movable cylinder, an adjusting rotating shaft is movably sleeved on one side of the outer wall of the lead screw and is in threaded connection with the lead screw, the adjusting rotating shaft is matched with the movable cylinder, the adjusting rotating shaft is rotatably connected with the movable cylinder, a fixed plate is arranged at the top of the lead screw, a fixed screw is arranged at the top of the fixed plate, an installation sleeve ring is adjusted on the outer wall of the fixed screw, a fixed part is fixedly connected to one side of the outer wall of one installation sleeve ring, an installation sleeve is arranged on the outer wall of the other installation sleeve ring, a clamping part is inserted into the inner wall of the installation sleeve, the installation sleeve is fixedly connected with the clamping part through bolts, and a limiting fixing mechanism is arranged on the central axis of the top of the base;

spacing fixed establishment is including the location pivot, location pivot bottom and base fixed connection, location pivot top is equipped with adjusting gear, adjusting gear rotates with the base through the location pivot to be connected, the adjusting gear top is equipped with the workstation, the regulation recess has been seted up to the workstation inner wall, the inside location fixing base that is equipped with of regulation recess, location fixing base top is equipped with the anchor clamps fixing base.

Preferably, the meshing of adjustment gear outer wall one side has a transmitting gear, transmitting gear inner wall fixedly connected with dwang, the dwang runs through the base and extends to the base inner wall, the dwang is equipped with the third bearing with the base junction, the dwang passes through the third bearing and is connected with the base rotation.

Preferably, dwang outer wall fixedly connected with steering gear, the meshing of steering gear outer wall has bevel gear, bevel gear inner wall fixedly connected with adjusts the handspike, it runs through the base and extends to base outer wall one side to adjust the handspike, it is equipped with the fourth bearing to adjust handspike and base junction, it is connected with the base rotation to adjust the handspike through the fourth bearing.

Preferably, threaded grooves are formed in two sides of the top of the adjusting groove, screws are connected to the inner portions of the threaded grooves in a threaded mode, the positioning fixing seats are matched with the adjusting groove, and the positioning fixing seats are fixedly connected with the workbench through the screws.

Preferably, the top of the mounting lantern ring is provided with a locking nut, and the locking nut is in threaded connection with the fixing screw.

Preferably, the clamping plates are arranged on two sides of the inner wall of the fixture fixing seat, the cross section of each clamping plate is arc-shaped and is corresponding to the corresponding clamping plate, a pull handle is fixedly connected to the outer wall of each clamping plate and penetrates through the fixture fixing seat, a reset spring is movably sleeved on the outer wall of each pull handle, and two sides of the outer wall of each reset spring respectively abut against the fixture fixing seat and the corresponding clamping plates.

In the technical scheme, the utility model provides the following technical effects and advantages:

1. the adjusting handle rod is rotated to drive the bevel gear to rotate forwards or backwards, so that the steering gear meshed with the outer wall of the bevel gear rotates, the rotating gear drives the adjusting gear to rotate to drive the workbench to rotate, the angle of a workpiece is convenient to adjust, the output shaft of the driving motor drives the screw rod to rotate, the screw rod drives the two movable lantern rings to move in opposite or opposite directions while rotating, so that the distance between the two movable cylinders is adjusted according to the size of the workpiece, the adjusting rotating shaft is rotated according to the clamping position of the workpiece, the screw rod is lifted, the heights of the clamping piece and the fixing piece are adjusted, the clamping piece and the fixing piece clamp and fix the workpiece with larger size, the positioning fixing seat is inserted into the adjusting groove to rotate, the clamp fixing seat is fixed on the workbench through screws, and meanwhile, the clamp fixing seat is rotatably matched with the workbench to facilitate the adjustment of the angle of the workbench, the fixture can conveniently adjust the distance, the height and the angle between the fixing part and the clamping part, and meanwhile, the fixture is suitable for parts with different sizes, so that the applicability is improved.

2. After the mounting lantern ring is sleeved with the fixing screw, the locking nut is screwed up with the fixing screw, the mounting lantern ring is limited and fixed when the angle of the clamping piece and the angle of the mounting piece and the workpiece are adjusted, the clamping piece is fixed with the mounting sleeve through the bolt, the opening direction of the clamping piece is adjusted conveniently, the clamping piece is adaptive to workpieces in different shapes, meanwhile, the stability of the mounting piece and the clamping piece is improved, the mounting and the dismounting are convenient to maintain and replace, the mounting and the dismounting are simple and convenient, and the working efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.

FIG. 1 is a cross-sectional view of the overall construction of the present invention;

FIG. 2 is a schematic view of the overall structure of the present invention;

FIG. 3 is a sectional top view of the base of the present invention;

FIG. 4 is a top cross-sectional view of the overall construction of the present invention;

FIG. 5 is an enlarged view of the structure of FIG. 1 at A according to the present invention;

FIG. 6 is a schematic view of a partial structure of a fixture fixing seat according to the present invention

FIG. 7 is a sectional view of the interior of the fixture mounting base of the present invention.

Description of reference numerals:

1. a base; 2. a screw; 3. a drive motor; 4. a chute; 5. moving the collar; 6. a movable barrel; 7. A screw rod; 8. adjusting the rotating shaft; 9. a fixing plate; 10. fixing screws; 11. mounting a lantern ring; 12. locking the nut; 13. a fixing member; 14. installing a sleeve; 15. a clamping member; 16. positioning the rotating shaft; 17. an adjusting gear; 18. a work table; 19. a rotating gear; 20. rotating the rod; 21. a steering gear; 22. a bevel gear; 23. adjusting the hand lever; 24. adjusting the groove; 25. positioning the fixed seat; 26. a fixture fixing seat; 27. a thread groove; 28. screws; 29. a clamping plate; 30. drawing the handle; 31. a return spring.

Detailed Description

In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.

The utility model provides a positioning clamp for machining as shown in figures 1-7, which comprises a base 1 and a lifting mechanism, wherein a screw 2 is arranged at the central axis inside the base 1, one side of the inner wall of the screw 2 penetrates through the base 1 and extends to one side of the outer wall of the base 1, a first bearing is arranged at the joint of the screw 2 and the base 1, the screw 2 is rotatably connected with the base 1 through the first bearing, a driving motor 3 is arranged at one side of the outer wall of the base 1, the output shaft of the driving motor 3 corresponds to one side of the outer wall of the screw 2, two movable lantern rings 5 are sleeved at two sides of the outer wall of the screw 2, the two movable lantern rings 5 are symmetrically arranged at the central axis of the base 1, sliding grooves 4 are arranged at two sides of the inner wall of the base 1, and the lifting mechanism is arranged at the top of each movable lantern ring 5;

the lifting mechanism comprises a movable cylinder 6, the movable cylinder 6 is fixedly connected with a movable sleeve ring 5, the movable cylinder 6 penetrates through a sliding groove 4 and extends to the top end of the outer wall of a base 1, a screw rod 7 is movably connected inside the movable cylinder 6, an adjusting rotating shaft 8 is movably sleeved on one side of the outer wall of the screw rod 7, the adjusting rotating shaft 8 is in threaded connection with the screw rod 7, the adjusting rotating shaft 8 is matched with the movable cylinder 6, the adjusting rotating shaft 8 is rotatably connected with the movable cylinder 6, a fixing plate 9 is arranged at the top of the screw rod 7, a fixing screw 10 is arranged at the top of the fixing plate 9, an installation sleeve ring 11 is adjusted on the outer wall of the fixing screw 10, one side of the outer wall of the installation sleeve ring 11 is fixedly connected with a fixing part 13, the outer wall of the other installation sleeve ring 11 is provided with an installation sleeve 14, a clamping part 15 is inserted into the inner wall of the installation sleeve 14, and the installation sleeve 14 is fixedly connected with the clamping part 15 through bolts, a limiting and fixing mechanism is arranged on the central axis of the top of the base 1;

spacing fixed establishment is including

location pivot

16, 16 bottoms of location pivot and base 1 fixed connection, 16 tops of location pivot are equipped with adjusting gear 17, adjusting gear 17 rotates with base 1 through location pivot 16 to be connected, adjusting gear 17 top is equipped with workstation 18, regulation recess 24 has been seted up to 18 inner walls of workstation, adjust 24 inside location fixing base 25 that is equipped with of recess, location fixing base 25 top is equipped with anchor clamps fixing base 26.

Further, in above-mentioned technical scheme, adjusting gear 17 outer wall one side meshing has a

rotating gear

19, 19 inner wall fixedly connected with dwang 20 of rotating gear, dwang 20 runs through base 1 and extends to base 1 inner wall, dwang 20 is equipped with the third bearing with base 1 junction, dwang 20 rotates with base 1 through the third bearing and is connected.

Further, in the above technical scheme, the outer wall of the rotating rod 20 is fixedly connected with a steering gear 21, the outer wall of the steering gear 21 is engaged with a bevel gear 22, the inner wall of the bevel gear 22 is fixedly connected with an adjusting hand lever 23, the adjusting hand lever 23 penetrates through the base 1 and extends to one side of the outer wall of the base 1, a fourth bearing is arranged at the joint of the adjusting hand lever 23 and the base 1, and the adjusting hand lever 23 is rotatably connected with the base 1 through the fourth bearing.

Further, in the above technical solution, two sides of the top of the adjusting groove 24 are provided with a thread groove 27, a screw 28 is connected to the thread groove 27, the positioning fixing seat 25 is matched with the adjusting groove 24, and the positioning fixing seat 25 is fixedly connected to the workbench 18 through the screw 28.

Further, in the above technical solution, a lock nut 12 is arranged at the top of the mounting collar 11, and the lock nut 12 is in threaded connection with the fixing screw 10.

Further, in the above technical scheme, grip blocks 29 are all established to anchor clamps fixing base 26 inner wall both sides, grip blocks 29 cross-sectional shape sets up to the arc, two it is corresponding between the grip blocks 29, grip blocks 29 outer wall fixedly connected with pull handle 30, pull handle 30 runs through anchor clamps fixing base 26, reset spring 31 has been cup jointed in the activity of pull handle 30 outer wall, reset spring 31 outer wall both sides offset with anchor clamps fixing base 26 and grip blocks 29 respectively.

This practical theory of operation:

referring to the attached drawings 1-7 of the specification, the utility model arranges a workpiece on the top of a workbench 18, drives a bevel gear 22 to rotate forward or backward by rotating an adjusting hand lever 23, so as to drive a steering gear 21 engaged with the outer wall of the bevel gear 22 to rotate, thereby driving a rotating lever 20 to rotate, driving an adjusting gear 17 to rotate by a rotating gear 19, so as to drive the workbench 18 to rotate, so as to adjust the angle of the workpiece, then starts a driving motor 3, drives a screw rod 2 to rotate by an output shaft of the driving motor 3, drives two movable lantern rings 5 to move in opposite or opposite directions while the screw rod 2 rotates, moves the movable lantern rings 6 along a sliding groove 4 while the movable lantern rings 5 move, thereby adjusting the distance between the two movable barrels 6 according to the size of the workpiece, enables a clamping piece 15 and a fixed piece 13 to approach the workpiece without contacting the workpiece, and then rotates an adjusting rotating shaft 8 according to the clamping position of the workpiece, the lead screw 7 is lifted, the heights of the clamping piece 15 and the fixing piece 13 are adjusted, the clamping piece 15 and the fixing piece 13 clamp and fix a workpiece with a larger size, the positioning fixing seat 25 is inserted into the adjusting groove 24 and then rotated by arranging the adjusting groove 24, the positioning fixing seat 25 is aligned with the thread groove 27, the clamp fixing seat 26 is fixed on the workbench 18 through the screw 28, the clamp fixing seat 26 is convenient to mount and dismount, meanwhile, the clamp fixing seat 26 is rotatably matched with the workbench 18, the angle of the workbench 18 is convenient to adjust, meanwhile, the drawing handle 30 is pulled, after the workpiece with a smaller size is placed in the clamp fixing seat 26, the clamping plates 29 on two sides inside the clamp fixing seat 26 clamp and fix the workpiece through the elastic action of the reset spring 31, the fixing firmness is improved, when the part is machined and shaken, the clamping piece 15 and the fixing piece 13 above can press the workpiece downwards, the stability of adding man-hour part is improved, the quality of parts machining is guaranteed, the position of mounting 13 and holder 15 can be adjusted through rotating the installation lantern ring 11 simultaneously, the part of adaptation different size of a dimension has improved the suitability, interval and height and angle between this anchor clamps can be convenient adjustment mounting 13 and holder 15, the effectual application scope who improves this anchor clamps.

Referring to the attached drawings 1-7 in the specification, after the mounting sleeve ring 11 is sleeved with the fixing screw 10, the locking nut 12 is screwed with the fixing screw 10, so that the angle between the clamping piece 15 and the fixing piece 13 and a workpiece is conveniently adjusted, the mounting sleeve ring 11 is limited and fixed, the clamping piece 15 is fixed with the mounting sleeve 14 through a bolt, the opening direction of the clamping piece 15 is conveniently adjusted, the clamping piece is suitable for workpieces in different shapes, the stability of the fixing piece 13 and the clamping piece 15 is improved, the mounting, dismounting, maintenance and replacement are convenient, the mounting, the dismounting and the mounting are simple and convenient, and the working efficiency is improved.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the utility model.

Claims

1. Positioning fixture for machining, including base (1) and elevating system, its characterized in that: a screw rod (2) is arranged at the central axis in the base (1), one side of the inner wall of the screw rod (2) penetrates through the base (1) and extends to one side of the outer wall of the base (1), a first bearing is arranged at the joint of the screw rod (2) and the base (1), the screw rod (2) is rotatably connected with the base (1) through the first bearing, a driving motor (3) is arranged at one side of the outer wall of the base (1), the output shaft of the driving motor (3) corresponds to one side of the outer wall of the screw rod (2), moving lantern rings (5) are sleeved at two sides of the outer wall of the screw rod (2), the two moving lantern rings (5) are symmetrically arranged about the central axis of the base (1), sliding grooves (4) are formed at two sides of the inner wall of the base (1), and a lifting mechanism is arranged at the top of the moving lantern rings (5);

the lifting mechanism comprises a movable cylinder (6), the movable cylinder (6) is fixedly connected with a movable lantern ring (5), the movable cylinder (6) penetrates through a sliding groove (4) and extends to the top end of the outer wall of the base (1), a lead screw (7) is movably connected inside the movable cylinder (6), an adjusting rotating shaft (8) is movably sleeved on one side of the outer wall of the lead screw (7), the adjusting rotating shaft (8) is in threaded connection with the lead screw (7), the adjusting rotating shaft (8) is matched with the movable cylinder (6), the adjusting rotating shaft (8) is rotatably connected with the movable cylinder (6), a fixing plate (9) is arranged on the top of the lead screw (7), a fixing screw (10) is arranged on the top of the fixing plate (9), an installation lantern ring (11) is adjusted on the outer wall of the fixing screw (10), and a fixing piece (13) is fixedly connected on one side of the outer wall of the installation lantern ring (11), a mounting sleeve (14) is arranged on the outer wall of the other mounting sleeve ring (11), a clamping piece (15) is inserted into the inner wall of the mounting sleeve (14), the mounting sleeve (14) is fixedly connected with the clamping piece (15) through a bolt, and a limiting and fixing mechanism is arranged on the central axis of the top of the base (1);

spacing fixed establishment is including location pivot (16), location pivot (16) bottom and base (1) fixed connection, location pivot (16) top is equipped with adjusting gear (17), adjusting gear (17) are rotated with base (1) through location pivot (16) and are connected, adjusting gear (17) top is equipped with workstation (18), adjustment recess (24) have been seted up to workstation (18) inner wall, adjust inside location fixing base (25) that is equipped with of recess (24), location fixing base (25) top is equipped with anchor clamps fixing base (26).

2. The positioning jig for machining according to claim 1, characterized in that: adjusting gear (17) outer wall one side meshing has rotating gear (19), rotating gear (19) inner wall fixedly connected with dwang (20), dwang (20) run through base (1) and extend to base (1) inner wall, dwang (20) are equipped with the third bearing with base (1) junction, dwang (20) are rotated with base (1) through the third bearing and are connected.

3. The positioning jig for machining according to claim 2, characterized in that: dwang (20) outer wall fixedly connected with steering gear (21), the meshing of steering gear (21) outer wall has bevel gear (22), bevel gear (22) inner wall fixedly connected with adjusts handle bar (23), it runs through base (1) and extends to base (1) outer wall one side to adjust handle bar (23), it is equipped with the fourth bearing to adjust handle bar (23) and base (1) junction, it is connected with base (1) rotation through the fourth bearing to adjust handle bar (23).

4. The positioning jig for machining according to claim 1, characterized in that: screw grooves (27) are formed in two sides of the top of the adjusting groove (24), screws (28) are connected to the inner threads of the screw grooves (27), the positioning fixing seat (25) is matched with the adjusting groove (24), and the positioning fixing seat (25) is fixedly connected with the workbench (18) through the screws (28).

5. The positioning jig for machining according to claim 1, characterized in that: the top of the mounting lantern ring (11) is provided with a locking nut (12), and the locking nut (12) is in threaded connection with the fixing screw (10).

6. The positioning jig for machining according to claim 1, characterized in that: grip block (29) are all established to anchor clamps fixing base (26) inner wall both sides, grip block (29) cross sectional shape sets up to the arc, two it is corresponding between grip block (29), grip block (29) outer wall fixedly connected with pull handle (30), pull handle (30) run through anchor clamps fixing base (26), reset spring (31) have been cup jointed in pull handle (30) outer wall activity, reset spring (31) outer wall both sides offset with anchor clamps fixing base (26) and grip block (29) respectively.