CN216882765U

CN216882765U - Positioning mechanism of machine tool fixture

Info

Publication number: CN216882765U
Application number: CN202123295937.0U
Authority: CN
Inventors: 顾平; 吴义民; 李文浩; 吴辉
Original assignee: Wuhan Haoweili Machinery Co ltd
Current assignee: Wuhan Haoweili Machinery Co ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-07-05
Anticipated expiration: 2031-12-24

Abstract

The utility model discloses a positioning mechanism of a machine tool clamp, which relates to the technical field of machine tool clamps and comprises a clamp main body, wherein the upper surface of the clamp main body is fixedly connected with a fixed block, the surface of the fixed block is provided with a threaded hole, the surface of the fixed block is in threaded connection with a threaded rod, one end of the threaded rod is fixedly connected with a screwing handle, the other end of the threaded rod is movably connected with the surface of a first connecting rod through a rotating base, the surface of the first connecting rod is movably connected with a first sliding rod, the surface of the first connecting rod is rotatably connected with the surface of a second connecting rod through the first sliding rod, the side surface of the second connecting rod is fixedly connected with a workpiece ejecting block, one end of the second connecting rod is movably connected with a third sliding rod, the aim of conveniently aligning a workpiece is achieved through the arrangement of the threaded rod, the first connecting rod, the second connecting rod, the third connecting rod and the workpiece ejecting block, and the positioning mechanism of the machine tool clamp can conveniently align the workpiece through the rotating shaft, The purpose of being convenient for to dismouting has been reached in the setting of clamp plate, bolt and nut.

Description

Positioning mechanism of machine tool fixture

Technical Field

The utility model relates to the technical field of machine tool fixtures, in particular to a positioning mechanism of a machine tool fixture.

Background

A machine tool holder is a device on a machine tool for holding a workpiece and guiding a tool. Which is a jig specially designed for a certain process of a certain workpiece. Its advantages are compact structure, quick and convenient operation, high machining precision and productivity, long design and manufacture period and high cost. When the product is changed, the clamp will be rejected as no longer usable. Is only suitable for the fixed and large-batch production of products. It is in contact with the positioning references of the workpiece for determining the correct position of the workpiece in the holder, thus ensuring a correct relative position of the workpiece with respect to the tool and the machining movement of the machine tool during machining.

At present, when the existing machine tool clamp is used for machining a square workpiece, a dial indicator is required to be used for marking the parallelism of the side face of the workpiece so as to ensure that the workpiece is straightened, the workpiece can be machined, when batch work is met, the operation greatly influences the working efficiency, so that the existing machine tool clamp has the defect that the workpiece is not convenient to straighten, when the machine tool clamp needs to be replaced, a pressing plate and a cushion block are required to be used in the existing disassembling and assembling method, the operation is relatively troublesome, and the existing machine tool clamp has the defect that the disassembly and assembly are not convenient.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a positioning mechanism of a machine tool clamp, which solves the problems in the background technology.

(II) technical scheme

In order to achieve the purpose, the utility model is realized by the following technical scheme: a positioning mechanism of a machine tool clamp comprises a clamp body, wherein a fixed block is fixedly connected to the upper surface of the clamp body, a threaded hole is formed in the surface of the fixed block, a threaded rod is connected to the surface of the fixed block in a threaded manner, a screwing handle is fixedly connected to one end of the threaded rod, the other end of the threaded rod is movably connected with the surface of a first connecting rod through a rotating base, a first sliding rod is movably connected to the surface of the first connecting rod, the surface of the first connecting rod is rotatably connected with the surface of a second connecting rod through the first sliding rod, a workpiece ejecting block is fixedly connected to the side surface of the second connecting rod, a third sliding rod is movably connected to one end of the second connecting rod, one end of the second connecting rod is rotatably connected with the surface of the third connecting rod through the third sliding rod, a pressing plate groove is formed in the upper surface of the clamp body, and a straight groove is formed in the surface of the pressing plate groove, the surface in clamp plate groove is provided with the axis of rotation, the surface of axis of rotation rotates and is connected with the clamp plate, the second clamp plate groove has been seted up on the surface of clamp plate.

Optionally, a first sliding groove is formed in the upper surface of the clamp main body, a first sliding rod is connected to the surface of the first sliding groove in a sliding mode, a second sliding groove is formed in the upper surface of the clamp main body, a second sliding rod is connected to the surface of the second sliding groove in a sliding mode, a workpiece ejecting block is fixedly connected to the upper surface of the second sliding rod, a third sliding groove is formed in the upper surface of the clamp main body, and a third sliding rod is connected to the upper surface of the third sliding groove in a sliding mode.

Optionally, the lower surface of the clamp main body is detachably connected with a workbench, and a convex groove is formed in the surface of the workbench.

Optionally, the number of the first connecting rods, the first sliding rods, the second connecting rods, the second sliding rods, the third connecting rods and the third sliding rods is two.

Optionally, the surface of the second pressing plate groove is detachably connected with a bolt and a nut, and the lower surface of the bolt is fixedly connected with a sliding block.

Optionally, the number of the second sliding grooves and the number of the third sliding grooves formed in the upper surface of the clamp main body are two, and the inclination angle of the second sliding grooves and the third sliding grooves relative to the first sliding grooves is one hundred thirty five degrees.

(III) advantageous effects

The utility model provides a positioning mechanism of a machine tool clamp, which has the following beneficial effects:

1. this machine tool fixture, through the setting of threaded rod, first connecting rod, second connecting rod, third connecting rod and work piece kicking block, make this machine tool fixture possess and ajusted the effect of ensureing the depth of parallelism of work piece with the work piece, in the use, twist the handle through the rotation and make the threaded rod drive first connecting rod move forward, and then drive second connecting rod and third connecting rod rearward movement, parallelogram's mechanism makes the work piece ajust and vertically placed in the middle, and then has reached the purpose of being convenient for ajusted the work piece.

2. This machine tool clamp through the setting of axis of rotation, clamp plate, bolt and nut, makes this machine tool clamp possess the effect of fixing the machine tool clamp to the workstation surface, in the use, through twisting the nut, the nut compresses tightly the clamp plate, and bolt one end fixed connection's slider is upwards pressed from both sides tightly at the protruding inslot, and then fixes machine tool clamp on the surface of workstation, simple structure, and the simple operation has reached the purpose of the dismouting of being convenient for.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a three-dimensional structural view of the clamp body according to the present invention;

FIG. 3 is a top view of the fixture body of the present invention;

FIG. 4 is a front view of the present invention;

fig. 5 is a schematic three-dimensional structure diagram of the pressing plate fixing device of the present invention.

In the figure: 1. a clamp body; 2. a fixed block; 3. a platen slot; 4. a first chute; 5. a second chute; 6. a third chute; 7. a threaded rod; 8. screwing a handle; 9. a first link; 10. a first slide bar; 11. A second link; 12. a second slide bar; 13. a third link; 14. a third slide bar; 15. a rotating shaft; 16. Pressing a plate; 17. a bolt; 18. a nut; 19. a slider; 20. a straight groove; 21. a work table; 22. a convex groove; 23. a workpiece ejector block; 24. a second platen slot.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1 to 5, the present invention provides a technical solution: a positioning mechanism of a machine tool clamp comprises a clamp body 1, wherein the lower surface of the clamp body 1 is detachably connected with a workbench 21, a convex groove 22 is formed in the surface of the workbench 21, the upper surface of the clamp body 1 is fixedly connected with a fixed block 2, a threaded hole is formed in the surface of the fixed block 2, a threaded rod 7 is connected with the surface of the fixed block 2 in a threaded manner, one end of the threaded rod 7 is fixedly connected with a screwing handle 8, the other end of the threaded rod 7 is movably connected with the surface of a first connecting rod 9 through a rotating base, the surface of the first connecting rod 9 is movably connected with a first slide bar 10, the surface of the first connecting rod 9 is rotatably connected with the surface of a second connecting rod 11 through the first slide bar 10, a workpiece jacking block 23 is fixedly connected with the side surface of the second connecting rod 11, one end of the second connecting rod 11 is movably connected with a third slide bar 14, a first slide groove 4 is formed in the upper surface of the clamp body 1, and the first slide bar 10 is slidably connected with the surface of the first slide groove 4, the upper surface of the clamp main body 1 is provided with a second sliding chute 5, the surface of the second sliding chute 5 is connected with a second sliding chute 12 in a sliding manner, the upper surface of the second sliding chute 12 is fixedly connected with a workpiece ejecting block 23, the upper surface of the clamp main body 1 is provided with a third sliding chute 6, the number of the second sliding chute 5 and the third sliding chute 6 arranged on the upper surface of the clamp main body 1 is two, the inclination angle of the second sliding chute 5 and the third sliding chute 6 relative to the first sliding chute 4 is one hundred thirty five degrees, the upper surface of the third sliding chute 6 is connected with a third sliding bar 14 in a sliding manner, one end of a second connecting bar 11 is rotatably connected with the surface of a third connecting bar 13 through the third sliding bar 14, the number of a first connecting bar 9, a first sliding bar 10, a second connecting bar 11, the second sliding bar 12, the third connecting bar 13 and the third sliding bar 14 is two, the upper surface of the clamp main body 1 is provided with a pressing plate groove 3, the surface of the pressing plate groove 3 is provided with a straight groove 20, and the surface of the pressing plate groove 3 is provided with a rotating shaft 15, the surface of the rotating shaft 15 is rotatably connected with a pressing plate 16, the surface of the pressing plate 16 is provided with a second pressing plate groove 24, the surface of the second pressing plate groove 24 is detachably connected with a bolt 17 and a nut 18, and the lower surface of the bolt 17 is fixedly connected with a sliding block 19.

When the machine tool clamp is used, the surface of a workbench 21 is cleaned, then a bolt 17 and a slide block 19 on the lower surface of a clamp body 1 slide to the middle of the workbench 21 through a convex groove 22, after the machine tool clamp is placed at a position, a wrench is used for screwing a nut 18 rightwards, the nut 18 moves downwards on the surface of the bolt 17, the nut 18 presses a pressing plate 16, the slide block 19 fixedly connected with the other end of the bolt 17 is upwards extruded in the convex groove 22 on the surface of the workbench 21, the machine tool clamp is fixed on the surface of the workbench, only the nut 18 needs to be screwed leftwards when the machine tool clamp is disassembled, the structure is simple, the operation is convenient, the purpose of convenient disassembly and disassembly is achieved, when the machine tool clamp is fixed, firstly, the parallelism of the machine tool clamp needs to be gauged, the clamp is ensured to be placed right, after the machine tool clamp is fixed, a workpiece is placed on the upper surface of the clamp (the size of the workpiece must be within the clamping bearing range of the clamp), a handle 8 is screwed rightwards, and then the threaded rod 7 is driven to push the first connecting rod 9 forwards, so that the first connecting rod 9 slides forwards in the first sliding groove 4 through the first sliding rod 10 on the lower surface of the first connecting rod, and then the second connecting rod 11 is driven to move in the second sliding groove 5 through the second sliding rod 12 on the lower surface of the second connecting rod, and then the third connecting rod 13 is driven to drive the third sliding rod 14 on the lower surface of the third connecting rod to move in the third sliding groove, so that the first connecting rod 9, the third connecting rod 13 and the workpiece top block 23 fix the workpiece, and the parallelogram mechanism enables the workpiece to be centered and centered vertically, thereby achieving the purpose of conveniently centering the workpiece.

The working principle and the beneficial effects of the utility model are as follows: the machine tool clamp has the effect of aligning a workpiece to ensure the parallelism of the workpiece by arranging the threaded rod 7, the first connecting rod 9, the second connecting rod 11, the third connecting rod 13 and the workpiece jacking block 23, in the use process, the threaded rod 7 drives the first connecting rod 9 to move forwards by rotating the screwing handle 8 so as to drive the second connecting rod 11 and the third connecting rod 13 to move backwards, the workpiece is aligned and longitudinally centered by the parallelogram mechanism so as to achieve the aim of aligning the workpiece, the machine tool clamp has the effect of fixing the machine tool clamp on the surface of a workbench by arranging the rotating shaft 15, the pressing plate 16, the bolt 17 and the nut 18, in the use process, the nut 18 compresses the pressing plate 16 by screwing the nut 18, the slide block 19 fixedly connected with one end of the bolt 17 is upwards clamped in the convex groove 22 so as to fix the machine tool clamp on the surface of the workbench 21, simple structure, the simple operation has reached the purpose of the dismouting of being convenient for.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a positioning mechanism of machine tool anchor clamps, includes anchor clamps main part (1), its characterized in that: the clamp comprises a clamp body (1), wherein a fixed block (2) is fixedly connected to the upper surface of the clamp body (1), a threaded hole is formed in the surface of the fixed block (2), a threaded rod (7) is connected to the surface of the fixed block (2) in a threaded manner, a twisting handle (8) is fixedly connected to one end of the threaded rod (7), the other end of the threaded rod (7) is movably connected to the surface of a first connecting rod (9) through a rotating base, a first sliding rod (10) is movably connected to the surface of the first connecting rod (9), the surface of the first connecting rod (9) is rotatably connected to the surface of a second connecting rod (11) through the first sliding rod (10), a workpiece ejecting block (23) is fixedly connected to the side surface of the second connecting rod (11), a third sliding rod (14) is movably connected to one end of the second connecting rod (11), and one end of the second connecting rod (11) is rotatably connected to the surface of the third connecting rod (13) through the third sliding rod (14), the clamp comprises a clamp body (1), wherein a pressing plate groove (3) is formed in the upper surface of the clamp body (1), a straight groove (20) is formed in the surface of the pressing plate groove (3), a rotating shaft (15) is arranged on the surface of the pressing plate groove (3), a pressing plate (16) is rotatably connected to the surface of the rotating shaft (15), and a second pressing plate groove (24) is formed in the surface of the pressing plate (16).

2. The positioning mechanism of a machine tool chuck according to claim 1, wherein: first spout (4) have been seted up to the upper surface of anchor clamps main part (1), the sliding surface of first spout (4) is connected with first slide bar (10), second spout (5) have been seted up to the upper surface of anchor clamps main part (1), the sliding surface of second spout (5) is connected with second slide bar (12), the last fixed surface of second slide bar (12) is connected with work piece kicking block (23), third spout (6) have been seted up to the upper surface of anchor clamps main part (1), the sliding surface of third spout (6) is connected with third slide bar (14).

3. The positioning mechanism of a machine tool chuck according to claim 1, wherein: the lower surface of anchor clamps main part (1) can be dismantled and be connected with workstation (21), convex groove (22) have been seted up on the surface of workstation (21).

4. The positioning mechanism of a machine tool chuck according to claim 1, wherein: the number of the first connecting rods (9), the first sliding rods (10), the second connecting rods (11), the second sliding rods (12), the third connecting rods (13) and the third sliding rods (14) is two.

5. The positioning mechanism of a machine tool chuck according to claim 1, wherein: the surface of the second pressing plate groove (24) is detachably connected with a bolt (17) and a nut (18), and the lower surface of the bolt (17) is fixedly connected with a sliding block (19).

6. The positioning mechanism of a machine tool chuck according to claim 1, wherein: the number of the second sliding grooves (5) and the third sliding grooves (6) formed in the upper surface of the clamp body (1) is two, and the inclination angle of the second sliding grooves and the third sliding grooves relative to the first sliding grooves (4) is one hundred thirty five degrees.