Combined clamp for thin-wall product machining

Abstract

The utility model discloses a thin-wall product machining combined clamp which comprises a cylinder, a plurality of through grooves distributed in an annular mode are formed in the cylinder, a tensioning block is slidably connected in the cylinder in a sleeved mode, a connecting rod is slidably connected in the tensioning block in a sleeved mode, and a clamping groove is formed in the connecting rod. A locking nut is connected to the outer side of the connecting rod and located above the tensioning block through threads, the locking nut makes contact with the tensioning block, a positioning nut is connected to the outer side of the connecting rod and located below the tensioning block through threads, and the positioning nut makes contact with the tensioning block. The connecting rod is connected with a hydraulic system, the connecting rod can push the tensioning block to move along the inner wall of the cylinder, the conical surface of the cylinder can be stressed and expanded under the action of the through groove formed in the cylinder, so that a workpiece can be positioned, a thin-wall product can be automatically clamped, the labor intensity of personnel is reduced, the clamp has certain universality, and the production efficiency is improved. When the product is replaced, only the cylinder needs to be replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a combined clamp for processing thin-walled products. Background Art

[0002] A fixture is a device used to fix the object to be processed in the mechanical manufacturing process so that it occupies the correct position for construction or inspection. It is also called a fixture (qiǎjǜ). In a broad sense, any device used to quickly, conveniently and safely install the workpiece in any process can be called a fixture. Thin-walled products have always been a production problem in machining production. The main reason is that thin-walled products will deform when clamped during production and will vibrate during processing, making it difficult to guarantee the surface quality and shape tolerance of the product output. In order to provide customers with higher quality products, this phenomenon needs to be solved in a targeted manner. Utility Model Content

[0003] The utility model aims to provide a combined clamp for processing thin-walled products, which solves the problem of inconvenient clamping and positioning of thin-walled products.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a combined clamp for processing thin-walled products, comprising a cylinder, a plurality of through grooves distributed in an annular shape are opened inside the cylinder, a tension block is slidably sleeved inside the cylinder, a connecting rod is slidably sleeved inside the tension block, a locking nut is threadedly connected to the outside of the connecting rod and located above the tension block, the locking nut is in contact with the tension block, a positioning nut is threadedly connected to the outside of the connecting rod and located below the tension block, the positioning nut is in contact with the tension block, the lower end of the cylinder is in contact with a tooling body, the lower end of the tooling body is in contact with a connecting nut, the connecting nut is threadedly connected to the connecting rod, and a guiding lubrication mechanism is provided on the tension block.

[0005] Preferably, the connecting rod is slidably connected to the tool body, and the connecting rod is connected to the hydraulic system. By designing the connecting rod, the tensioning block can be pushed to move.

[0006] Preferably, the guide lubrication mechanism includes a slide groove, a slide groove is provided inside the tension block, a ball is slidably connected inside the slide groove, the ball is movably connected to the cylinder, the outer surface of the ball contacts a sponge pad, the sponge pad is fixedly connected to the tension block, a flow channel is provided inside the tension block, a baffle rod is slidably connected inside the flow channel, a plug is fixedly connected to the top of the baffle rod, the plug is slidably connected to the tension block, a pull rod is fixedly connected inside the upper end of the plug, and a card block is fixedly connected to the left and right ends of the plug, and the card block is clamped with the tension block. By designing a guide lubrication mechanism, the friction of the tension block movement can be reduced.

[0007] Preferably, a movable groove is provided inside the cylinder, and a ball is movably connected inside the movable groove. The movable groove is designed so that the ball can move inside the cylinder.

[0008] Preferably, a card slot is provided inside the tension block, and a card block is clamped inside the card slot. The card slot is designed so that the card block can be clamped into the tension block.

[0009] Preferably, the plug and the block are an integrated structure, and both the plug and the block are made of rubber. The block is designed so that the block can be deformed when squeezed.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] 1. The utility model is connected to the hydraulic system through a connecting rod, and the connecting rod can push the tension block to move along the inner wall of the cylinder. Through the effect of the through groove provided in the cylinder, the conical surface of the cylinder can be forced to open so that the workpiece can be positioned, and the automatic clamping of thin-walled products can be realized, reducing the labor intensity of personnel. The fixture has a certain versatility, and only the cylinder needs to be replaced when changing products.

[0012] 2. The utility model designs the function of the ball, which can guide the movement of the tension block when the tension block and the cylinder slide relative to each other, and changes the sliding friction into rolling friction to reduce friction and wear. At the same time, the ball can self-lubricate during operation to further reduce its wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0014] Figure 2 For this utility model Figure 1 Cylindrical stereogram of

[0015] Figure 3 For this utility model Figure 1 A three-dimensional cross-sectional view of the local structure;

[0016] Figure 4 For this utility model Figure 3 Enlarged view of point A.

[0017] In the figure: 1. cylinder; 2. tension block; 3. connecting rod; 4. locking nut; 5. positioning nut; 6. tooling body; 7. connecting nut; 8. through groove; 9. guide lubrication mechanism; 91. slide groove; 92. ball; 93. movable groove; 94. sponge pad; 95. flow channel; 96. stopper rod; 97. plug; 98. pull rod; 99. block; 991. groove. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1 , Figure 2 , Figure 3 A combined clamp for processing thin-walled products comprises a cylinder 1, a plurality of through grooves 8 distributed in an annular shape are provided inside the cylinder 1, a tension block 2 is slidably sleeved inside the cylinder 1, a connecting rod 3 is slidably sleeved inside the tension block 2, the connecting rod 3 is slidably sleeved inside the tension block 2, the connecting rod 3 is slidably connected to a tooling body 6, the connecting rod 3 is connected to a hydraulic system, the tension block 2 can be pushed to move by designing the connecting rod 3, a locking nut 4 is threadedly connected to the outside of the connecting rod 3 and located above the tension block 2, the locking nut 4 contacts the tension block 2, a positioning nut 5 is threadedly connected to the outside of the connecting rod 3 and located below the tension block 2, the positioning nut 5 contacts the tension block 2, the lower end of the cylinder 1 contacts the tooling body 6, the lower end of the tooling body 6 contacts the connecting nut 7, the connecting nut 7 is threadedly connected to the connecting rod 3, and a guide lubrication mechanism 9 is provided on the tension block 2.

[0020] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 The guide lubrication mechanism 9 includes a slide groove 91. The tension block 2 has a slide groove 91 formed inside. A ball 92 is slidably connected inside the slide groove 91. The ball 92 is movably connected to the cylinder 1. A movable groove 93 is formed inside the cylinder 1. The ball 92 is movably connected inside the movable groove 93. By designing the movable groove 93, the ball 92 can move inside the cylinder 1. The outer surface of the ball 92 contacts a sponge pad 94, and the sponge pad 94 is fixedly connected to the tension block 2.

[0021] See also Figure 1 , Figure 2 , Figure 3 , Figure 4A flow channel 95 is provided inside the tensioning block 2, and a baffle 96 is slidably connected inside the flow channel 95. A plug 97 is fixedly connected to the top of the baffle 96. The plug 97 is slidably connected to the tensioning block 2, and a pull rod 98 is fixedly connected inside the upper end of the plug 97. Blocks 99 are fixedly connected to the left and right ends of the plug 97. The plug 97 and the block 99 are an integrated structure. Both the plug 97 and the block 99 are made of rubber. By designing the block 99, the block 99 can be deformed by being squeezed, and the block 99 is connected to the tensioning block 2. A card slot 991 is provided inside the tensioning block 2, and the card slot 991 is connected to the card block 99. By designing the card slot 991, the card block 99 can be inserted into the tensioning block 2. By designing the guide lubrication mechanism 9, the movement friction of the tensioning block 2 can be reduced.

[0022] The specific implementation process of the utility model is as follows: when in use, the connection between the connecting rod 3 and the hydraulic system, when the connecting rod 3 moves, it will drive the tension block 2 to move, and the tension block 2 slides along the inner wall of the cylinder 1. Through the effect of the through groove 8 opened in the cylinder 1, the conical surface of the cylinder 1 can be forced to open so that the workpiece can be positioned, and the automatic clamping of thin-walled products can be realized, reducing the labor intensity of personnel. The clamp has a certain versatility, and only the cylinder 1 needs to be replaced when the product is replaced. When the tension block 2 moves, the tension block 2 and the ball 92 slide relative to each other, changing the sliding friction to rolling friction to reduce friction and reduce wear. At the same time, the rolling of the ball 92 can also squeeze the sponge pad 94, and the lubricating liquid inside the sponge pad 94 can be squeezed out, and the ball 92 and the tension block 2 can be lubricated. The ball 92 can self-lubricate during the working process, further reducing its wear. When lubricating liquid needs to be added, pull rod 98 is directly pulled up, and pull rod 98 drives plug 97 to move, and plug 97 drives block 99 to move so that block 99 is separated from slot 991, and at the same time, plug 97 drives baffle 96 to move and be completely removed from tension block 2, and then lubricating liquid is added to flow channel 95, and the lubricating oil flows through flow channel 95 to sponge pad 94 to add lubricating liquid.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A combined fixture for processing thin-walled products, comprising a cylinder (1), characterized in that: The cylinder (1) is provided with a plurality of through grooves (8) distributed in an annular shape. A tension block (2) is slidably sleeved inside the cylinder (1). A connecting rod (3) is slidably sleeved inside the tension block (2). A locking nut (4) is threadedly connected to the outside of the connecting rod (3) and located above the tension block (2). The locking nut (4) contacts the tension block (2). A positioning nut (5) is threadedly connected to the outside of the connecting rod (3) and located below the tension block (2). The positioning nut (5) contacts the tension block (2). The lower end of the cylinder (1) contacts a tooling body (6). The lower end of the tooling body (6) contacts a connecting nut (7). The connecting nut (7) is threadedly connected to the connecting rod (3). A guiding lubrication mechanism (9) is provided on the tension block (2).

2. A combined fixture for processing thin-walled products according to claim 1, characterized in that: The connecting rod (3) is slidably connected to the tooling body (6), and the connecting rod (3) is connected to the hydraulic system.

3. The thin-wall product processing combined fixture according to claim 1, characterized in that: The guide lubrication mechanism (9) comprises a slide groove (91), the tensioning block (2) is provided with a slide groove (91), the slide groove (91) is slidably connected to the inside of a ball (92), the ball (92) is movably connected to the cylinder (1), the outer surface of the ball (92) contacts a sponge pad (94), the sponge pad (94) is fixedly connected to the tensioning block (2), a flow channel (95) is provided inside the tensioning block (2), the flow channel (95) is slidably connected to the inside of a baffle rod (96), the top of the baffle rod (96) is fixedly connected to a plug (97), the plug (97) is slidably connected to the tensioning block (2), the upper end of the plug (97) is fixedly connected to a pull rod (98), the left and right ends of the plug (97) are fixedly connected to a clamping block (99), and the clamping block (99) is clamped to the tensioning block (2).

4. The thin-wall product processing combined fixture according to claim 1, characterized in that: A movable groove (93) is provided inside the cylinder (1), and a ball (92) is movably connected inside the movable groove (93).

5. The thin-wall product processing combined fixture according to claim 1, characterized in that: A clamping slot (991) is provided inside the tensioning block (2), and a clamping block (99) is clamped inside the clamping slot (991).

6. The thin-wall product processing combined fixture according to claim 3, characterized in that: The plug (97) and the block (99) are an integrated structure, and both the plug (97) and the block (99) are made of rubber.

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