CN215942154U

CN215942154U - Positioning jig 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 jig for machining, which comprises a base and a lifting mechanism. A screw rod is arranged at the inner axis of the base, and one side of the inner wall of the screw rod extends through the base to one side of the outer wall of the base. A first bearing is provided, and the screw rod is rotatably connected with the base through the first bearing. The utility model drives the two moving collars to move in opposite or opposite directions when the screw rotates, rotates and adjusts the rotating shaft according to the clamping position of the workpiece, makes the screw lift up and down, adjusts the height of the clamping piece and the fixing piece, and makes the clamping The holder and the fixing piece clamp and fix the workpiece, insert the positioning fixing base into the adjusting groove and rotate, and fix the fixing base on the worktable by screws. The distance between the piece and the clamping piece, as well as the height and angle, and at the same time adapt to parts of different sizes, which improves the applicability.

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. A positioning fixture for machining, comprising a base (1) and a lifting mechanism, characterized in that: a screw (2) is provided at the inner central axis of the base (1), and one side of the inner wall of the screw (2) penetrates through the base (1). 1) Extending to one side of the outer wall of the base (1), a first bearing is provided at the connection between the screw (2) and the base (1), and the screw (2) is rotatably connected to the base (1) through the first bearing, so One side of the outer wall of the base (1) is provided with a drive motor (3), the output shaft of the drive motor (3) corresponds to one side of the outer wall of the screw (2), and both sides of the outer wall of the screw (2) are sleeved with moving A collar (5), the two movable collars (5) are symmetrically arranged with respect to the central axis of the base (1), and sliding grooves (4) are provided on both sides of the inner wall of the base (1). (5) There is a lifting mechanism on the top;

The lifting mechanism comprises a movable cylinder (6), the movable cylinder (6) is fixedly connected with the movable collar (5), and the movable cylinder (6) extends through the chute (4) to the top of the outer wall of the base (1), A screw rod (7) is movably connected inside the movable cylinder (6), and an adjusting shaft (8) is movably sleeved on one side of the outer wall of the screw rod (7). The adjusting shaft (8) is connected to the screw rod (7) threaded connection, the adjusting shaft (8) is matched with the movable cylinder (6), the adjusting shaft (8) is rotatably connected with the movable cylinder (6), and the top of the screw rod (7) is provided with a fixing plate (9) , the top of the fixing plate (9) is provided with a fixing screw (10), the outer wall of the fixing screw (10) is adjusted with a mounting collar (11), and one side of the outer wall of the mounting collar (11) is fixedly connected with a fixing collar (11). A mounting sleeve (14) is provided on the outer wall of the other mounting sleeve (11), a clamping piece (15) is inserted into the inner wall of the mounting sleeve (14), and the mounting sleeve ( 14) It is fixedly connected with the clamping member (15) by bolts, and a limit fixing mechanism is provided at the central axis of the top of the base (1);

The limiting and fixing mechanism comprises a positioning shaft (16), the bottom of the positioning shaft (16) is fixedly connected with the base (1), and the top of the positioning shaft (16) is provided with an adjusting gear (17), and the adjusting gear ( 17) The positioning shaft (16) is rotatably connected to the base (1), the top of the adjusting gear (17) is provided with a worktable (18), and the inner wall of the worktable (18) is provided with an adjusting groove (24), so A positioning fixing seat (25) is arranged inside the adjusting groove (24), and a clamp fixing seat (26) is arranged on the top of the positioning fixing seat (25).

2 . The positioning fixture for machining according to claim 1 , wherein a rotating gear ( 19 ) is engaged with one side of the outer wall of the adjusting gear ( 17 ), and a rotating rod is fixedly connected to the inner wall of the rotating gear ( 19 ). 3 . (20), the rotating rod (20) extends through the base (1) to the inner wall of the base (1), a third bearing is provided at the connection between the rotating rod (20) and the base (1), and the rotating rod (20) ) is rotatably connected to the base (1) through the third bearing.

3. The positioning fixture for machining according to claim 2, wherein a steering gear (21) is fixedly connected to the outer wall of the rotating rod (20), and a bevel gear (22) is engaged with the outer wall of the steering gear (21). ), an adjustment lever (23) is fixedly connected to the inner wall of the bevel gear (22), and the adjustment lever (23) extends through the base (1) to one side of the outer wall of the base (1). ) and the base (1) are connected with a fourth bearing, and the adjusting handle (23) is rotatably connected with the base (1) through the fourth bearing.

4. The positioning fixture for machining according to claim 1, characterized in that threaded grooves (27) are provided on both sides of the top of the adjustment groove (24), and screws are threadedly connected to the inside of the threaded groove (27). (28), the positioning and fixing seat (25) is matched with the adjusting groove (24), and the positioning and fixing seat (25) is fixedly connected with the worktable (18) through the screw (28).

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

6. The positioning fixture for machining according to claim 1, characterized in that: clamping plates (29) are provided on both sides of the inner wall of the fixture fixing seat (26), and the clamping plates (29) have a cross-sectional shape set. It is arc-shaped, and the two clamping plates (29) correspond to each other, and the outer wall of the clamping plates (29) is fixedly connected with a pulling handle (30), and the pulling handle (30) penetrates the fixture fixing seat (26), a return spring (31) is movably sleeved on the outer wall of the pull handle (30), and both sides of the outer wall of the return spring (31) are respectively abutted against the fixture fixing seat (26) and the clamping plate (29).