Mechanical part machining clamp convenient to disassemble

Abstract

The utility model discloses a mechanical part machining clamp convenient to disassemble, and belongs to the technical field of mechanical part machining, the mechanical part machining clamp comprises a base, the left side and the right side of an inner cavity of the base are rotationally connected with lead screws, and the outer sides of the lead screws are sequentially in threaded connection with moving blocks and fixedly sleeved with worm wheels from left to right; the rear side of an inner cavity of the base is rotationally connected with a worm matched with the worm gear, the top of the moving block penetrates through the base, cushion blocks are fixedly installed on the left side of the top of the base and the top of the moving block, clamp heads are arranged on the tops of the cushion blocks, and the bottoms of the clamp heads extend into the cushion blocks. And supporting frames are fixedly mounted on the sides, away from each other, of the cushion blocks. Compared with the prior art, the clamp head can be quickly disassembled, mechanical parts of different specifications can be conveniently clamped, the use diversity of the device is improved, the self-locking advantage is achieved, and the clamping stability of the mechanical parts is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of machining of mechanical parts, in particular to a fixture for machining mechanical parts which is convenient for disassembly. Background Technique

[0002] Mechanical parts are the basic units that make up a mechanical system. They are combined together through different connection methods to achieve specific functions. Mechanical parts are diverse in types and functions, and are widely used in many fields such as manufacturing, automobiles, aerospace, and household appliances. A fixture is an auxiliary device used to fix and position the machining of mechanical parts. With its efficient and flexible characteristics, it is widely used in the field of mechanical machining, effectively improving production efficiency and machining accuracy.

[0003] The existing fixture device is not convenient for disassembling the fixture head. Since the shape specifications of mechanical parts are not uniform, it is difficult for the fixture to stably clamp mechanical parts. Moreover, the fixture head is moved by an electric push rod, which is easy to cause wear to mechanical parts, making the mechanical parts unusable and bringing certain economic losses. Therefore, we propose a fixture for machining mechanical parts which is convenient for disassembly to solve this problem. Content of the Utility Model

[0004] The purpose of the utility model is to provide a fixture for machining mechanical parts which is convenient for disassembly to solve the problems put forward in the above background technique.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A fixture for machining mechanical parts which is convenient for disassembly includes a base. The left and right sides of the inner cavity of the base are rotatably connected with lead screws. The outer sides of the lead screws are sequentially screwed with moving blocks and fixedly sleeved with worm wheels from left to right. The rear side of the inner cavity of the base is rotatably connected with a worm that is adapted to the worm wheel. The top of the moving block penetrates through the base. The left side of the top of the base and the top of the moving block are both fixedly installed with cushion blocks. A fixture head is arranged on the top of the cushion block. The bottom of the fixture head extends into the cushion block. Support frames are fixedly installed on the opposite sides of the cushion blocks. Pull rings are arranged on the opposite sides of the support frames. Connecting rods are fixedly connected to the opposite sides of the pull rings. The opposite sides of the connecting rods extend into the inner cavity of the support frames and are fixedly connected with positioning rods. The opposite sides of the positioning rods extend into the fixture head.

[0007] Preferably, pads are fixedly installed on the mutually remote sides of the spacer block. A pull block is arranged on the top of the spacer block. The bottom of the pull block penetrates through the spacer block and is fixedly connected with a cross plate. The front side and the rear side of the bottom of the cross plate are fixedly connected with limiting plates. The bottom of the limiting plate extends into the inner cavity of the support frame. One side of the limiting plate abuts against one side of the positioning rod.

[0008] Preferably, the front side of the worm penetrates through the base and is fixedly connected with a handle. A support plate is fixedly installed on the right side of the top of the inner cavity of the base. A cross bar is fixedly installed on the left side of the support plate. The left side of the cross bar penetrates through the moving block and is fixedly connected with the left side of the inner cavity of the base. The outer side of the cross bar is in sliding contact with the inner cavity of the moving block. Limiting grooves adapted to the moving block are fixedly formed in the front side and the rear side of the top of the base.

[0009] Preferably, first springs are fixedly connected to the mutually remote sides of the inner cavity of the support frame. The corresponding sides of the first springs are fixedly connected with one side of the limiting rod. The first springs are sleeved on the outer sides of the connecting rods.

[0010] Preferably, a second spring is fixedly connected to the bottom of the spacer block. The bottom of the second spring is fixedly connected with the top of the cross plate. The second spring is sleeved on the outer side of the pull block.

[0011] Preferably, connecting seats are fixedly installed on the left and right sides of the bottom of the base.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. In the utility model, by pulling the pull block to move upward, the pull block drives the cross plate to move upward, the cross plate drives the limiting plate to move upward, and simultaneously compresses the second spring. After the limiting plate moves away from the positioning rod, the two pull rings are moved away from each other. The pull rings drive the connecting rods to move away from each other, the connecting rods drive the positioning rods to move away from each other, and simultaneously compress the first spring, so that the positioning rod moves away from the fixture head. Then, by moving the fixture head upward, the fixture head can be quickly disassembled, which is convenient for clamping mechanical parts of different specifications, and improves the diversity of use of the device.

[0014] 2. In the utility model, by rotating the handle clockwise, the handle drives the worm to rotate. The worm drives the engaged worm gear to rotate. The worm gear drives the lead screw to rotate. The lead screw drives the mutually screwed moving block to move to the left. The moving block drives the right fixture head to move to the left through the right spacer block. By the combined use of the worm gear and the worm, the utility model has the advantage of self-locking and improves the clamping stability of mechanical parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of a fixture for machining mechanical parts that is convenient for disassembly proposed by the utility model;

[0016] Figure 2 A sectional structure schematic diagram of a fixture for machining mechanical parts that is easy to disassemble proposed by the present utility model;

[0017] Figure 3 is Figure 2 a partial enlarged view of part A in

[0018] In the figure: 1, base; 2, lead screw; 3, worm gear; 4, moving block; 5, worm; 6, cross bar; 7, grip; 8, cushion block; 9, fixture head; 10, support frame; 11, connecting rod; 12, positioning rod; 13, cross plate; 14, limiting plate; 15, first spring; 16, second spring; 17, pull ring; 18, connecting seat; 19, limiting groove; 20, backing plate; 21, support plate; 22, pull block. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0020] Referring to Figures 1-3 , a fixture for machining mechanical parts that is easy to disassemble includes a base 1. The left and right sides of the inner cavity of the base 1 are rotatably connected with a lead screw 2. The outer side of the lead screw 2 is sequentially screwed with a moving block 4 and fixedly sleeved with a worm gear 3 from left to right. The rear side of the inner cavity of the base 1 is rotatably connected with a worm 5 adapted to the worm gear 3. The top of the moving block 4 penetrates through the base 1. The left side of the top of the base 1 and the top of the moving block 4 are both fixedly installed with cushion blocks 8. A fixture head 9 is arranged on the top of the cushion block 8. The bottom of the fixture head 9 extends into the inside of the cushion block 8. Support frames 10 are fixedly installed on the opposite sides of the cushion blocks 8. Pull rings 17 are arranged on the opposite sides of the support frames 10. Connecting rods 11 are fixedly connected to the corresponding sides of the pull rings 17. The corresponding sides of the connecting rods 11 extend into the inner cavity of the support frames 10 and are fixedly connected to positioning rods 12. The corresponding sides of the positioning rods 12 extend into the inside of the fixture head 9.

[0021] In this embodiment, backing plates 20 are fixedly installed on the sides of the spacer blocks 8 away from each other. A pulling block 22 is arranged on the top of the backing plate 20. The bottom of the pulling block 22 penetrates through the backing plate 20 and is fixedly connected to a cross plate 13. The front side and the rear side of the bottom of the cross plate 13 are fixedly connected with limiting plates 14 respectively. The bottom of the limiting plate 14 extends into the inner cavity of the support frame 10. One side of the limiting plate 14 abuts against one side of the positioning rod 12. The front side of the worm 5 penetrates through the base 1 and is fixedly connected to a handle 7. A support plate 21 is fixedly installed on the right side of the inner cavity top of the base 1. A cross bar 6 is fixedly installed on the left side of the support plate 21. The left side of the cross bar 6 penetrates through the moving block 4 and is fixedly connected to the left side of the inner cavity of the base 1. The outer side of the cross bar 6 is in sliding contact with the inner cavity of the moving block 4. Limiting grooves 19 adapted to the moving block 4 are fixedly formed in the front side and the rear side of the top of the base 1. Through the mutual cooperation of the cross bar 6 and the limiting grooves 19, the moving block 4 can be limited, improving the stability of the left and right movement of the moving block 4.

[0022] In this embodiment, first springs 15 are fixedly connected to the sides of the inner cavity of the support frame 10 away from each other. The corresponding sides of the first springs 15 are fixedly connected to one side of the limiting rods. The first springs 15 are sleeved on the outer sides of the connecting rods 11. The bottom of the backing plate 20 is fixedly connected to a second spring 16. The bottom of the second spring 16 is fixedly connected to the top of the cross plate 13. The second spring 16 is sleeved on the outer side of the pulling block 22. Connecting seats 18 are fixedly installed on the left and right sides of the bottom of the base 1. Through the connecting seats 18, the base 1 can be fixed, improving the stability of the base 1.

[0023] In this embodiment, during use, by pulling the pulling block 22 upward, the pulling block 22 drives the cross plate 13 to move upward. The cross plate 13 drives the limiting plate 14 to move upward, and at the same time compresses the second spring 16. After the limiting plate 14 moves away from the positioning rod 12, the two pulling rings 17 are moved away from each other. The pulling rings 17 drive the connecting rods 11 to move away from each other. The connecting rods 11 drive the positioning rods 12 to move away from each other, and at the same time compress the first spring 15, so that the positioning rod 12 moves away from the clamping head 9. Then, by moving the clamping head 9 upward, the clamping head 9 can be quickly disassembled, facilitating the clamping of mechanical parts of different specifications. By rotating the handle 7 clockwise, the handle 7 drives the worm 5 to rotate. The worm 5 drives the engaged worm wheel 3 to rotate. The worm wheel 3 drives the lead screw 2 to rotate. The lead screw 2 drives the screwed moving block 4 to move to the left. The moving block 4 drives the right clamping head 9 to move to the left through the right spacer block 8. Through the combined use of the worm wheel 3 and the worm 5, it has the advantage of self-locking, improving the stability of clamping mechanical parts.

[0024] The above has introduced in detail a fixture for machining mechanical parts that is easy to disassemble provided by the present utility model. Specific embodiments are used in this article to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model. It should be noted that for those of ordinary skill in the art of this technology, without departing from the principle of the present utility model, several improvements and modifications can still be made to the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.

Claims

1. A fixture for machining mechanical parts that is easy to disassemble, comprising a base (1), characterized in that: On the left and right sides of the inner cavity of the base (1), a lead screw (2) is rotatably connected. On the outer side of the lead screw (2), a moving block (4) and a worm gear (3) fixedly sleeved are sequentially screwed from left to right. At the rear side of the inner cavity of the base (1), a worm (5) adapted to the worm gear (3) is rotatably connected. The top of the moving block (4) penetrates through the base (1). On the top of the left side of the base (1) and the top of the moving block (4), a cushion block (8) is fixedly installed. On the top of the cushion block (8), a fixture head (9) is arranged. The bottom of the fixture head (9) extends into the cushion block (8). On the sides of the cushion blocks (8) away from each other, a support frame (10) is fixedly installed. On the sides of the support frames (10) away from each other, a pull ring (17) is arranged. On the corresponding sides of the pull rings (17), a connecting rod (11) is fixedly connected. On the corresponding sides of the connecting rods (11), they extend into the inner cavity of the support frame (10) and are fixedly connected to a positioning rod (12). On the corresponding sides of the positioning rods (12), they extend into the fixture head (9).

2. The fixture for machining mechanical parts that is easy to disassemble according to claim 1, characterized in that: On the sides of the cushion blocks (8) away from each other, a backing plate (20) is fixedly installed. On the top of the backing plate (20), a pulling block (22) is arranged. The bottom of the pulling block (22) penetrates through the backing plate (20) and is fixedly connected to a cross plate (13). On the front side and the rear side of the bottom of the cross plate (13), a limiting plate (14) is fixedly connected. The bottom of the limiting plate (14) extends into the inner cavity of the support frame (10). One side of the limiting plate (14) abuts against one side of the positioning rod (12).

3. The fixture for machining mechanical parts that is easy to disassemble according to claim 1, wherein: The front side of the worm (5) penetrates through the base (1) and is fixedly connected to a handle (7). On the top right side of the inner cavity of the base (1), a support plate (21) is fixedly installed. On the left side of the support plate (21), a cross bar (6) is fixedly installed. The left side of the cross bar (6) penetrates through the moving block (4) and is fixedly connected to the left side of the inner cavity of the base (1). The outer side of the cross bar (6) is in sliding contact with the inner cavity of the moving block (4). On the front side and the rear side of the top of the base (1), a limiting groove (19) adapted to the moving block (4) is fixedly opened.

4. A fixture for machining mechanical parts that is easy to disassemble according to claim 1, characterized in that: On the sides of the inner cavity of the support frame (10) away from each other, a first spring (15) is fixedly connected. On the corresponding side of the first spring (15), it is fixedly connected to one side of the limiting rod. The first spring (15) is sleeved on the outer side of the connecting rod (11).

5. The fixture for machining mechanical parts that is easy to disassemble according to claim 2, wherein: The bottom of the backing plate (20) is fixedly connected to a second spring (16). The bottom of the second spring (16) is fixedly connected to the top of the cross plate (13). The second spring (16) is sleeved on the outer side of the pulling block (22).

6. A fixture for machining mechanical parts that is easy to disassemble according to claim 1, characterized in that: On the left and right sides of the bottom of the base (1), a connecting seat (18) is fixedly installed.

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