Clamp used for welding and provided with multi-angle adjusting mechanism

Abstract

The clamp with the multi-angle adjusting mechanism for welding comprises an adjusting equipment body, a fixing block is arranged on the adjusting equipment body through an adjusting arm, and the clamp is characterized in that a vertical sliding groove is formed in the side wall, away from the adjusting arm, of the fixing block, and two oppositely-arranged clamping blocks are arranged on the fixing block through the vertical sliding groove; the two clamping blocks can move towards or away from each other along the vertical sliding grooves; a clamping assembly is arranged on the clamping block, and the clamping assembly can further move in the direction of the vertical sliding groove so as to clamp an object. Due to the fact that the clamping rods are distributed on the outer wall of the clamping block at equal intervals, and each clamping rod evenly and independently slides, the clamping rods can conduct targeted clamping according to the shape of an object, and under the elasticity effect of the springs, the air bags arranged at the ends of the clamping rods in a communicating mode can make close contact with the object; the clamping rods working independently can conduct clamping work according to the appearance of an object.

Description

Technical Field

[0001] The present invention belongs to the technical field of jigs, and particularly relates to a jig with a multi-angle adjustment mechanism for welding. Background Art

[0002] A jig is a device used in the mechanical manufacturing process to fix the processing object, make it occupy the correct position, and accept construction or inspection. Generally speaking, any device used in the process to quickly, conveniently, and safely install the workpiece can be called a jig, such as welding jigs, inspection jigs, assembly jigs, machine tool jigs, etc. Among them, jigs are used more frequently during welding.

[0003] Chinese Patent CN112427879A discloses a jig with a multi-angle adjustment mechanism for welding. By setting a pull rod, a first spring, and a first positioning block, during use, pulling the pull rod drives the first positioning block away from the clamping block. When the first positioning block is not in contact with the clamping block, the clamping block can be removed. Then, align the clamping block to be used with the groove on the second connecting block and push the clamping block. When the clamping block slides, it will squeeze the first positioning block to drive the first positioning block to move, and the first positioning block will compress the first spring. When the first positioning block touches the sliding groove on the clamping block, the pressure on the first spring disappears, driving the first positioning block to reset and limit and fix the clamping block. After installing the clamping block, the clamping block can be replaced during use, and the corresponding clamping block can be replaced according to the shape of the welded pipe fitting, which can expand the use range of the jig.

[0004] For this structure, although the clamping block can be replaced to expand the use range of the jig, it requires the operator to select a suitable clamping block according to the item, making the operation inconvenient. Summary of the Invention

[0005] In order to solve the technical problems existing in the prior art, the present invention provides a jig with a multi-angle adjustment mechanism for welding, including an adjustment device body. A fixing block is provided on the adjustment device body through an adjustment arm. A vertical sliding groove is opened on the side wall of the fixing block away from the adjustment arm. Two relatively arranged clamping blocks are provided on the fixing block through the vertical sliding groove; the two clamping blocks can move towards or away from each other along the vertical sliding groove;

[0006] A clamping assembly is provided on the clamping block, and the clamping assembly can further move along the direction of the vertical sliding groove to clamp an object.

[0007] Further, the clamping assembly includes a sleeve, and the sleeve is vertically installed on the opposite surfaces of the two clamping blocks; a spring arranged axially is provided in the sleeve, and a clamping rod is provided at the top of the spring;

[0008] A limiting ring is provided on the outer periphery of the end of the clamping rod located inside the sleeve, and the clamping rod is prevented from slipping out of the sleeve under the action of the limiting ring.

[0009] Furthermore, a through hole arranged axially is formed in the clamping rod. An air port corresponding to the through hole is provided at one end of the clamping rod close to the spring, and an airbag is provided at the other end of the clamping rod.

[0010] Furthermore, a sealing ring is sleeved on the outer wall of the limiting ring.

[0011] Furthermore, the outer wall of the sealing ring is slidably arranged with the inner wall of the sleeve, and the sealing ring is made of a friction-resistant sealing material.

[0012] Furthermore, the outer wall of the airbag is fixedly installed at one end of the clamping rod away from the limiting ring, and the airbag is made of rubber material.

[0013] Furthermore, universal wheels are provided at the bottom of the adjusting device body, and the universal wheels are distributed at the four corners of the bottom of the adjusting device body; a moving component is provided at the central position of the bottom of the adjusting device body, and the moving component is used to adjust the contact state between the universal wheels and the ground.

[0014] Furthermore, the moving component includes a fixing plate fixedly installed at the bottom of the adjusting device body. Connecting plates arranged symmetrically are hinged on both sides of the fixing plate. A sliding plate is hinged at the end of the connecting plate away from the fixing plate. A supporting plate is slidably arranged on the bottom surface of the sliding plate; an oppositely threaded rod is arranged between the sliding plates on both sides of the fixing plate, and the sliding plates on both sides of the fixing plate can move towards or away from each other under the action of the oppositely threaded rod.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] In the present invention, since the clamping rods are evenly distributed on the outer wall of the clamping block and each clamping rod slides independently and evenly, the clamping rods can perform targeted clamping according to the shape of the article. Under the action of the elasticity of the spring, the airbag connected to the end of the clamping rod can be in close contact with the article, and the independently working clamping rods can perform clamping work according to the outer shape of the article. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional external view of the structure of the present invention;

[0018] Figure 2 is a schematic diagram of the clamping component and the moving component of the structure of the present invention;

[0019] Figure 3 is a clamping component diagram of the structure of the present invention;

[0020] Figure 4Schematic cross-sectional view of the structure clamping component of the present invention;

[0021] Figure 5 Structure moving component diagram of the present invention;

[0022] Figure 6 Explosion schematic diagram of the structure moving component of the present invention.

[0023] Reference numerals and names of the drawings: 1. Adjusting device body; 2. Fixed block; 3. Clamping block; 4. Processing component; 41. Clamping component; 42. Moving component; 411. Sleeve; 412. Spring; 413. Limit ring; 414. Clamping rod; 415. Air port; 416. Airbag; 417. Sealing ring; 421. Fixed plate; 422. Connecting plate; 423. Slide plate; 424. Support plate; 425. Opposite threaded rod; 426. Universal wheel. Detailed implementation manners

[0024] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described below in conjunction with the drawings and specific implementation manners.

[0025] Embodiment 1

[0026] This embodiment provides a fixture with a multi-angle adjustment mechanism for welding, including an adjusting device body 1. A fixed block 2 is provided on the adjusting device body 1 through an adjusting arm. A vertical sliding groove is formed on the side wall of the fixed block 2 away from the adjusting arm. Two oppositely arranged clamping blocks 3 are provided on the fixed block 2 through the vertical sliding groove; the two clamping blocks 3 can move towards or away from each other along the vertical sliding groove; a clamping component 41 is provided on the clamping block 3, and the clamping component 41 can further move along the direction of the vertical sliding groove to clamp an object.

[0027] The clamping component 41 includes a sleeve 411 fixedly installed on the outer wall of the clamping block 3. A spring 412 is arranged inside the sleeve 411. One end of the spring 412 is fixedly installed with a limit ring 413. A clamping rod 414 is fixedly installed on the side of the limit ring 413 away from the spring 412. An air port 415 is formed at one end of the clamping rod 414 close to the spring 412. An airbag 416 is connected to the end of the clamping rod 414 away from the air port 415. A sealing ring 417 is fixedly installed on the outer wall of the limit ring 413.

[0028] When it is necessary to clamp an item, place it between two clamping blocks 3, make the two clamping blocks 3 move towards each other, so that the outer wall of the airbag 416 contacts the item. The sleeve 411 and the clamping rod 414 moving towards each other can clamp the item. Since the clamping rods 414 are equidistantly distributed on the outer wall of the clamping block 3 and each clamping rod 414 slides uniformly and independently, the clamping rods 414 can be clamped specifically according to the shape of the item. Under the elastic action of the spring 412, the airbag 416 connected to the end of the clamping rod 414 can be in close contact with the item. The independently operating clamping rods 414 can perform the clamping work according to the shape of the item. When the clamping rod 414 is squeezed and slides into the sleeve 411, the limit ring 413 fixedly installed at the end of the clamping rod 414 away from the airbag 416 slides on the inner wall of the sleeve 411, and the sealing ring 417 fixedly installed on the outer wall of the limit ring 413 slides in a sealed manner on the inner wall of the sleeve 411. The clamping rod 414 sliding into the sleeve 411 compresses the gas inside it, so that the gas enters the inside of the clamping rod 414 through the air port 415 and then is filled into the airbag 416 connected to the clamping rod 414, causing the airbag 416 to expand. This increases the contact area with the item, and since the airbag 416 is made of rubber material, it can prevent the clamping rod 414 from damaging the clamped item. When the item processing is completed, the two clamping blocks 3 move in the opposite direction to release the item. At this time, the clamping rod 414 is not squeezed, and under the elastic action of the spring 412, the clamping rod 414 is pushed towards the outside of the sleeve 411, and the gas inside the airbag 416 is transported into the sleeve 411 through the sealing ring 417, so that the airbag 416 no longer expands, avoiding the airbag 416 being in an expanded state for a long time (the adjustment device body 1, the fixed block 2 and the clamping block 3 are the prior art publicly disclosed in the comparative document, so their structures are not fully described in this case).

[0029] The outer wall of the airbag 416 is fixedly installed at the end of the clamping rod 414 away from the limit ring 413. The airbag 416 is made of rubber material. Under its restriction, the friction force with the item can be increased, and the item can be clamped more stably.

[0030] The outer wall of the sealing ring 417 is slidably arranged on the inner wall of the sleeve 411. The sealing ring 417 is made of a wear-resistant sealing material. Under the restriction of the sealed sliding of the sealing ring 417 on the inner wall of the sleeve 411, the gas inside the sleeve 411 is compressed into the air port 415, so that the clamping rod 414 fills the airbag 416 with gas, causing the airbag 416 to expand.

[0031] Embodiment 2

[0032] Based on Embodiment 1, the moving component 42 of this embodiment specifically includes a fixing plate 421 fixedly installed at the bottom of the adjusting device body 1. One outer wall of the fixing plate 421 is hingedly connected with a connecting plate 422. One end of the connecting plate 422 away from the fixing plate 421 is hingedly connected with a sliding plate 423. A supporting plate 424 is slidably arranged on the outer wall of the sliding plate 423. An opposed threaded rod 425 is sleeved inside the sliding plate 423. A universal wheel 426 is fixedly installed at the bottom of the adjusting device body 1.

[0033] When welding and processing an item is required, the adjusting device body 1 can be moved to the required position by means of the universal wheel 426 fixedly installed at the bottom of the adjusting device body 1. When the adjusting device body 1 is moved to the required position, the opposed threaded rod 425 is rotated. Since the sliding plate 423 is hingedly connected with the connecting plate 422, and one end of the connecting plate 422 away from the sliding plate 423 is hingedly connected with the fixing plate 421, under its support, when the opposed threaded rod 425 rotates, it can drive the two sliding plates 423 to move towards each other. The sliding plate 423 slides on the outer wall of the supporting plate 424, pushing the supporting plate 424 towards the ground. When the supporting plate 424 contacts the ground, with the rotation of the opposed threaded rod 425, the sliding plate 423 and the connecting plate 422 can lift the adjusting device body 1, avoiding the shaking of the adjusting device body 1 during processing, so as to improve the accuracy of processing of the adjusting device body 1.

[0034] There are two sliding plates 423, symmetrically distributed with respect to the center line at the bottom of the adjusting device body 1. The sliding plate 423 is threadedly sleeved with the opposed threaded rod 425. Under the restriction of the connecting plate 422, when the opposed threaded rod 425 rotates, it can drive the sliding plate 423 to slide on the outer wall of the supporting plate 424.

[0035] In addition, the outer wall of the supporting plate 424 and the inside of the sliding plate 423 are slidably arranged. One side of the supporting plate 424 away from the sliding plate 423 is made of rubber material. Under its restriction, the adjusting device body 1 can be stably supported.

[0036] In summary, the above are only the preferred embodiments of the present invention, and do not limit the protection scope of the present invention. All equivalent changes and modifications made according to the scope of the present invention patent and the content of the specification are within the scope covered by the present invention patent.

Claims

1. A welding fixture with a multi-angle adjustment mechanism, comprising an adjustment device body, on which a fixing block is provided through an adjustment arm, characterized in that: A vertical slide groove is provided on the side wall of the fixed block away from the adjusting arm, and two clamping blocks arranged opposite to each other are provided on the fixed block through the vertical slide groove; the two clamping blocks can move toward or away from each other along the vertical slide groove; The clamping block is provided with a clamping assembly, and the clamping assembly can further move along the direction of the vertical slide slot to clamp the object.

2. The clamp according to claim 1, characterized in that: The clamping assembly comprises a sleeve, which is vertically mounted on the opposite surfaces of the two clamping blocks; an axially arranged spring is arranged in the sleeve, and a clamping rod is arranged on the top of the spring; A limiting ring is arranged outside the end of the clamping rod located in the sleeve, and the clamping rod will not fall out of the sleeve under the action of the limiting ring.

3. The clamp according to claim 2, characterized in that: An axially arranged through hole is provided in the clamping rod, an air port corresponding to the through hole is provided at one end of the clamping rod close to the spring, and an air bag is provided at the other end of the clamping rod.

4. The clamp according to claim 3, characterized in that: The outer wall of the limiting ring is sleeved with a sealing ring.

5. The clamp according to claim 4, characterized in that: The outer wall of the sealing ring is slidably arranged with the inner wall of the sleeve, and the sealing ring is made of a friction-resistant sealing material.

6. The clamp according to claim 3, characterized in that: The outer wall of the airbag is fixedly installed on one end of the clamping rod away from the limiting ring, and the airbag is made of rubber.

7. The clamp according to claim 1, characterized in that: A universal wheel is provided at the bottom of the adjusting device body, and the universal wheel is distributed at the four corners of the bottom of the adjusting device body; a moving component is provided at the central position of the bottom of the adjusting device body, and the moving component is used to adjust the contact state between the universal wheel and the ground.

8. The clamp according to claim 7, characterized in that: The moving assembly includes a fixed plate fixedly installed at the bottom of the adjusting device body, and symmetrically arranged connecting plates are hinged on both sides of the fixed plate. A sliding plate is hinged at the end of the connecting plate away from the fixed plate, and a support plate is slidably arranged on the bottom surface of the sliding plate; opposing threaded rods are inserted between the sliding plates on both sides of the fixed plate, and the sliding plates on both sides of the fixed plate can move toward or away from each other under the action of the opposing threaded rods.

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