CN220029971U

CN220029971U - Clamp for machining

Info

Publication number: CN220029971U
Application number: CN202321451422.1U
Authority: CN
Inventors: 王伟
Original assignee: Shenyang Xinhang Cnc Technology Co ltd
Current assignee: Shenyang Xinhang Cnc Technology Co ltd
Priority date: 2023-06-08
Filing date: 2023-06-08
Publication date: 2023-11-17
Anticipated expiration: 2033-06-08

Abstract

The utility model belongs to the technical field of clamps, in particular to a clamp for machining, aiming at the problems that different clamps need to be replaced and the uneven stability of the bottom of a product is poor when other products are produced in the prior art, the utility model provides the following scheme. The screw rod can slide along the first annular groove and the second annular groove, the second cylinder drives the pressing plate to press down to fix products with large size and small size respectively, meanwhile, the first cylinder adjusts the height of the bottom plate to adapt to the height of the products, the flexibility is high, the clamping requirements of different types of products can be met, the bidirectional worm is rotated to drive the bearing plate on one side of the worm wheel to rotate, the products with uneven bottoms are placed on the bearing plate and have more supporting points, so that the products are not easy to shake, and the stability of the products is improved.

Description

Clamp for machining

Technical Field

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

Background

The fixture is used to fix the machining object in the correct position during the machining process to accept the construction or detection. In a broad sense, any device used to quickly, conveniently and safely mount a workpiece at any stage in the process may be referred to as a fixture.

Although there are many types of jigs on the market, in particular in the field of machining, a common jig is used, and one kind of jig corresponds to one product or a certain kind of product, which causes the production of other products to require the replacement of a different jig, and this inconvenience is particularly reflected in that the size and appearance of the replaced product are different from those of the previous product.

Meanwhile, when the contact surface of the bottom of some products is uneven, such as round bodies, vertebration bodies and other products, if the products are directly placed on a table top, the products are easy to shake, and the stability is poor.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the clamp for machining, which overcomes the defects of the prior art and effectively solves the problems that different clamps need to be replaced when other products are produced and the uneven stability of the bottom of the products is poor through the mutual matching of the flexible adjusting mechanism and the supporting mechanism.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the clamp for machining comprises symmetrically distributed supporting legs, wherein flexible adjusting mechanisms are arranged on the outer walls of the tops of the supporting legs, and bearing mechanisms are arranged at the bottoms of the flexible adjusting mechanisms;

the flexible adjusting mechanism comprises an operating platform welded on the outer wall of the top of the supporting leg, a first annular groove and a second annular groove which are respectively arranged on the inner wall of the operating platform from outside to inside, symmetrically distributed first air cylinders arranged at the bottom of the operating platform, and a bottom plate connected to a piston rod of the first air cylinders;

the bearing mechanism comprises a bidirectional worm connected to the outer wall of the bottom plate in a rotating way, symmetrically distributed worm gears meshed to the outer wall of the bidirectional worm, and a bearing plate connected to the inner wall of the worm gears.

Preferably, the outer wall of the bottom of the operating platform is welded with symmetrically distributed supporting plates, and the first air cylinders are arranged on the inner walls of the supporting plates.

Preferably, the inner wall of the operating platform is positioned in the first annular groove and is connected with a screw rod in a sliding manner, a disc is welded on the outer wall of one end of the screw rod, a threaded knob is screwed on the side wall of the disc, a second cylinder is rotatably connected to the inner wall of the disc, and a piston rod of the second cylinder is connected with a pressing plate.

Preferably, the outer wall of the screw rod is in threaded connection with an internal thread sleeve handle, and the internal thread sleeve handle is clung to the outer wall of the bottom of the operating platform.

Preferably, symmetrically distributed mounting grooves are formed in the outer wall of the top of the bottom plate, and the bearing plate is arranged in the mounting grooves.

Preferably, a hand wheel is arranged on the outer wall of the bidirectional worm.

The beneficial effects of the utility model are as follows:

1. according to the clamp for machining, in the flexible adjusting mechanism, the screw rod can slide along the first annular groove and the second annular groove, the second air cylinder drives the pressing plate to press down to respectively fix products with large size and small size, meanwhile, the height of the bottom plate is adjusted through the first air cylinder to adapt to the height of the products, the flexibility is high, and the clamping requirements of different types of products can be met;

2. the fixture for machining of the design drives the bearing plate on one side of the worm wheel to rotate by rotating the bidirectional worm in the bearing mechanism, and products with uneven bottoms are placed on the bearing plate and have more supporting points, so that the fixture is not easy to shake, and the stability of the products is improved.

Drawings

FIG. 1 is a front view of the whole structure of a machining fixture according to the present utility model;

FIG. 2 is a bottom view of the overall structure of a machining fixture according to the present utility model;

FIG. 3 is a schematic view of a supporting mechanism of a fixture for machining according to the present utility model;

fig. 4 is a schematic diagram illustrating the disassembly of a second cylinder connection structure of the fixture for machining according to the present utility model.

In the figure: 1. support legs; 2. a flexible adjustment mechanism; 21. an operation table; 22. a first annular groove; 23. a second annular groove; 24. a first cylinder; 25. a bottom plate; 3. a bearing mechanism; 31. a bidirectional worm; 32. a worm wheel; 33. a bearing plate; 4. a support plate; 5. a screw rod; 6. a disc; 7. a threaded knob; 8. an internal thread sleeve; 9. a second cylinder; 10. a pressing plate; 11. a mounting groove; 12. and a hand wheel.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

First embodiment, referring to fig. 1, a fixture for machining includes symmetrically distributed supporting legs 1, and the outer wall of the top of the supporting legs 1 is provided with a flexible adjusting mechanism 2, wherein the flexible adjusting mechanism 2 includes the following components:

flexible adjustment mechanism 2: the flexible adjusting mechanism 2 comprises an operation table 21 welded on the outer wall of the top of the supporting leg 1, a first annular groove 22 and a second annular groove 23 which are respectively arranged on the inner wall of the operation table 21 from outside to inside, symmetrically distributed first air cylinders 24 arranged at the bottom of the operation table 21, and a bottom plate 25 connected to the piston rod of the first air cylinders 24.

Referring to fig. 1-2, the outer wall of the bottom of the operation table 21 is welded with symmetrically distributed support plates 4, and the first cylinders 24 are mounted on the inner wall of the support plates 4.

Referring to fig. 4, the inner wall of the operation table 21 is located in the first annular groove 22 and is slidably connected with a screw rod 5, a disc 6 is welded on the outer wall of one end of the screw rod 5, a threaded knob 7 is screwed on the side wall of the disc 6, a second air cylinder 9 is rotatably connected to the inner wall of the disc 6, a piston rod of the second air cylinder 9 is connected with a pressing plate 10, an inner thread sleeve handle 8 is screwed on the outer wall of the screw rod 5, and the inner thread sleeve handle 8 is tightly attached to the outer wall of the bottom of the operation table 21.

In this embodiment, the screw rod 5 can slide along the first annular groove 22 and the second annular groove 23, the second cylinder 9 drives the pressing plate 10 to press down to fix the large-size and small-size products respectively, and meanwhile, the first cylinder 24 adjusts the height of the bottom plate 25 to adapt to the height of the products, so that the flexibility is high, and the clamping requirements of different types of products can be met.

In a second embodiment, referring to fig. 3, a fixture for machining further includes a supporting mechanism 3, where the supporting mechanism 3 includes the following components:

and a bearing mechanism 3: the supporting mechanism 3 comprises a bidirectional worm 31 rotatably connected to the outer wall of the bottom plate 25, symmetrically distributed worm gears 32 meshed with the outer wall of the bidirectional worm 31, and supporting plates 33 connected to the inner wall of the worm gears 32.

Referring to fig. 1, the top outer wall of the bottom plate 25 is provided with symmetrically distributed mounting grooves 11, and the supporting plate 33 is disposed inside the mounting grooves 11.

Referring to fig. 3, a hand wheel 12 is mounted on the outer wall of the bidirectional worm 31.

In this embodiment, the bidirectional worm 31 is rotated to drive the supporting plate 33 on one side of the worm wheel 32 to rotate, so that the product with uneven bottom is placed on the supporting plate 33 and has more supporting points, so that the product is not easy to shake, and the stability of the product is improved.

Working principle: with the help of the first annular groove 22 and the second annular groove 23, if the size of the product is large, the screw rod 5 can slide along the first annular groove 22, the pressing plate 10 is driven to be pressed down by the second air cylinder 9 to fix large-size products respectively, if the size of the product is small, the screw rod 5 can slide along the second annular groove 23, meanwhile, the height of the bottom plate 25 is adjusted by the first air cylinder 24 to adapt to the height of the product, and if the contact surface of the bottoms of some products is uneven, such as round bodies, cone bodies and other products, the bidirectional worm 31 can be rotated to drive the supporting plate 33 on one side of the worm wheel 32 to rotate, and at the moment, the product is placed on the supporting plate 33 to have more supporting points to avoid shaking.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The clamp for machining comprises symmetrically distributed supporting legs (1), and is characterized in that a flexible adjusting mechanism (2) is arranged on the outer wall of the top of the supporting legs (1), and a bearing mechanism (3) is arranged at the bottom of the flexible adjusting mechanism (2);

the flexible adjusting mechanism (2) comprises an operating platform (21) welded on the outer wall of the top of the supporting leg (1), a first annular groove (22) and a second annular groove (23) which are respectively arranged on the inner wall of the operating platform (21) from outside to inside, symmetrically distributed first air cylinders (24) arranged at the bottom of the operating platform (21), and a bottom plate (25) connected to a piston rod of the first air cylinders (24);

the bearing mechanism (3) comprises a bidirectional worm (31) rotatably connected to the outer wall of the bottom plate (25), symmetrically distributed worm gears (32) meshed with the outer wall of the bidirectional worm (31), and bearing plates (33) connected to the inner wall of the worm gears (32).

2. A machining jig according to claim 1, wherein the outer wall of the bottom of the operation table (21) is welded with symmetrically distributed support plates (4), and the first cylinder (24) is mounted on the inner wall of the support plates (4).

3. The clamp for machining according to claim 1, wherein the inner wall of the operating table (21) is located in the first annular groove (22) and is slidably connected with a screw rod (5), a disc (6) is welded on the outer wall of one end of the screw rod (5), a threaded knob (7) is screwed on the side wall of the disc (6), a second air cylinder (9) is rotatably connected on the inner wall of the disc (6), and a pressing plate (10) is connected with the piston rod of the second air cylinder (9).

4. A machining fixture according to claim 3, wherein the outer wall of the screw rod (5) is screwed with an internal thread bushing (8), and the internal thread bushing (8) is tightly attached to the bottom outer wall of the operating table (21).

5. The clamp for machining according to claim 1, wherein the outer wall of the top of the bottom plate (25) is provided with symmetrically distributed mounting grooves (11), and the supporting plate (33) is arranged in the mounting grooves (11).

6. A machining fixture according to claim 1, characterized in that the outer wall of the bi-directional worm (31) is provided with a hand wheel (12).