Laser welding clamp

Abstract

The utility model discloses a laser welding clamp which comprises a fixing seat and a pipe fitting to be welded, a first limiting sliding groove is formed in the upper face of the fixing seat, adjusting seats are arranged above the fixing seat in a bilateral symmetry mode, first limiting sliding blocks are fixedly connected to the lower faces of the adjusting seats, and the first limiting sliding blocks are in sliding fit with the first limiting sliding groove. A vertical plate is fixedly connected to the rear face of the adjusting base, a second carrier roller frame is slidably connected to the front face of the adjusting base, and an upper extrusion carrier roller is rotationally installed on the second carrier roller frame. The driving motor is started to drive the lower carrier rollers to rotate, the lower carrier roller on one side drives the lower carrier roller on the other side to rotate through transmission of the limiting transmission rod, the first carrier roller frames on the two sides rotate synchronously, then the lower carrier rollers are used for driving the clamped to-be-welded pipe fittings, and the two to-be-welded pipe fittings can be synchronously driven to rotate by one circle; a circle of the butt joint position of two to-be-welded pipe fittings is welded through laser, and the positions of the to-be-welded pipe fittings do not need to be manually adjusted.

Description

Technical Field

[0001] This utility model relates to a clamp, and more particularly to a laser welding clamp. Background Technology

[0002] Laser welding of plastics is also known as laser transmission welding. Laser transmission welding is a technology that uses the heat generated by a laser beam to melt the plastic contact surface and then holds it under pressure in a fixture until it cools down. When welding pipes, plastic laser welding equipment needs to clamp the pipes first to prevent them from moving during the welding process and affecting the welding effect.

[0003] A plastic laser welding fixture, as disclosed in Chinese Patent Publication No. CN220720337U, includes a worktable. A clamping assembly is mounted on the top of the worktable. The clamping assembly includes a motor fixedly mounted on the left side of the worktable. A lead screw, rotatably connected to the inner wall of the right side of the worktable, is fixedly mounted on the output end of the motor. Two moving blocks are threaded onto the surface of the lead screw. A connecting rod extending to the top of the moving blocks is fixedly mounted on the top of the moving blocks. A connecting plate is fixedly mounted on the top of the connecting rod. A bearing seat is fixedly mounted on the top of the connecting plate. An mounting sleeve is fixedly mounted on the inner wall of the bearing seat. Electric push rods are fixedly mounted on the inner top and bottom walls of the mounting sleeve. A V-shaped limiting plate is fixedly mounted on the other end of the electric push rod. This plastic laser welding fixture, with its V-shaped limiting plate, allows the device to clamp pipes of different sizes, thereby greatly improving the practicality of the device.

[0004] Some problems were found when using the existing plastic laser welding fixture. First, for the welding of pipe fittings, since the interface is circular, the laser welding head needs to go around the entire circumference to complete the welding of the entire interface of the pipe fitting. However, the position of the laser welding head is difficult to adjust, and the position of the pipe fitting after clamping and fixing is also difficult to adjust. It is necessary to manually clamp and adjust the position of the pipe fitting multiple times to ensure that the interface of the pipe fitting is completely welded. Utility Model Content

[0005] The purpose of this invention is to provide a laser welding fixture to solve the existing problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a laser welding fixture, comprising a fixed base and a pipe to be welded, wherein a first limiting groove is provided on the fixed base, and adjusting seats are symmetrically arranged on the left and right sides above the fixed base, and a first limiting slider is fixedly connected to the bottom of the adjusting seat. The first limiting slider slides in cooperation with the first limiting groove. A vertical plate is fixedly connected to the rear of the adjusting seat, and a second roller frame is slidably connected to the front of the adjusting seat. An upper extrusion roller is rotatably mounted on the second roller frame. A first roller frame is symmetrically arranged on the front and back of the adjusting base, and a lower roller is rotatably mounted on the first roller frame. A drive motor is fixedly connected to the side of one of the first roller frames on one side, and the output end of the drive motor is fixedly connected to the lower roller.

[0007] Preferably, a first bidirectional threaded rod is rotatably installed in the first limiting slide groove, and a rotating disk is fixedly connected to one end of the first bidirectional threaded rod. A first threaded sleeve is embedded in one of the first limiting sliders on the left side, and the first threaded sleeve is threadedly engaged with the first bidirectional threaded rod.

[0008] Preferably, the adjusting seat is provided with a second limiting groove, and a second bidirectional threaded rod is rotatably installed in the second limiting groove.

[0009] Preferably, a second limiting slider is fixedly connected to the lower part of the first idler roller frame, and a second threaded sleeve is embedded in the second limiting slider. The second threaded sleeve is threadedly engaged with the second bidirectional threaded rod.

[0010] Preferably, each of the upright plates is provided with a clamping cylinder, and a connecting slider is provided behind the second roller frame. The connecting slider is slidably engaged with the clamping cylinder. A connecting groove is fixedly connected to the upper part of the left upright plate, and the output end of the connecting groove is fixedly connected to the connecting slider.

[0011] Preferably, a linkage rod is fixedly connected to one side of the second idler frame on the left, and a connecting through hole is formed in the second idler frame on the right. The connecting through hole is slidably engaged with the linkage rod. A limit transmission rod is fixedly connected to the shaft end of the lower idler on the left, and a limit through hole is formed in the lower idler on the right. The limit through hole is slidably engaged with the limit transmission rod.

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

[0013] 1. By starting the drive motor to drive the lower roller to rotate, one side of the lower roller will drive the other side of the lower roller to rotate through the limit transmission rod. The first roller frames on both sides rotate synchronously, and then the lower roller drives the clamped pipe to be welded. It can synchronously drive the two pipes to be welded to rotate one revolution, so that the laser welding of the joint of the two pipes to be welded can be performed without manual adjustment of the position of the pipes to be welded.

[0014] 2. By rotating the second bidirectional threaded rod, the first roller frame can be moved, and the distance between the two first roller frames can be adjusted so that the lower roller can support the pipes to be welded of different diameters.

[0015] 3. The start-up connecting groove drives the two second roller frames to move down. The movement of the second roller frames will drive the upper extrusion roller to move down. The upper extrusion roller will press against the pipe to be welded, fixing the two pipes to be welded onto the adjusting seat, thus achieving automatic clamping and fixing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention during use;

[0017] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 3 This is a partial exploded view of the present invention.

[0019] In the diagram: 1. Fixed seat; 101. First limiting slide groove; 102. First bidirectional threaded rod; 103. Rotary disk; 2. Adjusting seat; 201. Second limiting slide groove; 202. Second bidirectional threaded rod; 203. First limiting slider; 204. First threaded sleeve block; 3. First roller frame; 301. Second limiting slider; 302. Second threaded sleeve block; 303. Lower roller; 304. Drive motor; 4. Vertical plate; 401. Connecting groove; 402. Clamping cylinder; 5. Second roller frame; 501. Upper extrusion roller; 6. Limiting transmission rod; 601. Limiting through hole; 7. Linkage rod; 701. Connecting through hole; 9. Pipe to be welded. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-3This utility model provides a technical solution: a laser welding fixture, including a fixed base 1 and a pipe fitting 9 to be welded. The fixed base 1 has a first limiting groove 101. Adjusting bases 2 are symmetrically arranged on the left and right sides above the fixed base 1. A first limiting slider 203 is fixedly connected to the bottom of the adjusting base 2. The first limiting slider 203 slides in cooperation with the first limiting groove 101. A vertical plate 4 is fixedly connected to the rear of the adjusting base 2. A second roller frame 5 is slidably connected to the front of the adjusting base 2. An upper extrusion roller 501 is rotatably installed on the second roller frame 5. A first roller frame 3 is symmetrically arranged on the front and back of the adjusting base 2. A lower roller 303 is rotatably installed on the first roller frame 3. A drive motor 304 is fixedly connected to the side of one of the first roller frames 3 on one side. The output end of the drive motor 304 is fixedly connected to the lower roller 303.

[0022] In this embodiment, the lower support rollers 303 are symmetrically arranged on the first support roller frame 3 and rotatedly mounted. The pipe to be welded 9 is placed between the two lower support rollers 303, supporting the pipe to be welded 9 above the adjusting seat 2. Then, the second support roller frame 5 is controlled to move downward. The downward movement of the second support roller frame 5 will drive the upper extrusion roller 501 to move downward. The upper extrusion roller 501 will fit against the pipe to be welded 9. The two lower support rollers 303 and one upper extrusion roller 501 form a triangle to clamp and fix the pipe to be welded 9. The adjusting seat 2 is controlled by the first limiting slider 203. The first limiting slide groove 101 is slidably engaged and slidably installed on the fixed seat 1, so that the adjusting seat 2 can slide left and right, thereby adjusting the distance between the two adjusting seats 2, which can drive the clamped pipe 9 to be welded to move closer to each other, so that the ends of the two pipe 9 to be welded are attached together. Starting the drive motor 304 can drive the lower roller 303 to rotate, and the rotation of the lower roller 303 can drive the pipe 9 to be welded to rotate, so that during the laser welding process, the pipe 9 to be welded will automatically rotate one revolution, so that the interface of the two pipe 9 to be welded will be completely welded together.

[0023] To achieve the purpose of clamping and fixing the pipe fitting 9 to be welded, this device adopts the following technical solution: A first bidirectional threaded rod 102 is rotatably installed in the first limiting slide groove 101, and a rotating disk 103 is fixedly connected to one end of the first bidirectional threaded rod 102. A first threaded sleeve 204 is embedded in one of the first limiting sliders 203 on the left side. The first threaded sleeve 204 is threadedly engaged with the first bidirectional threaded rod 102. A second limiting slide groove 201 is opened on the adjusting seat 2. A second bidirectional threaded rod 202 is rotatably installed. A second limiting slider 301 is fixedly connected to the bottom of the first roller frame 3. A second threaded sleeve 302 is embedded in the second limiting slider 301. The second threaded sleeve 302 is threadedly engaged with the second bidirectional threaded rod 202. Clamping cylinders 402 are opened in the vertical plate 4. A connecting slider is opened at the rear of the second roller frame 5. The connecting slider is slidably engaged with the clamping cylinders 402. A connecting groove 401 is fixedly connected to the top of the left vertical plate 4. The output end of the connecting groove 401 is fixedly connected to the connecting slider.

[0024] The rotating disk 103 can drive the first bidirectional threaded rod 102 to rotate. The first bidirectional threaded rod 102 is threadedly engaged with the first threaded sleeve block 204. The rotation of the first bidirectional threaded rod 102 can drive the first limiting slider 203 to move. The movement of the first limiting slider 203 can drive the adjusting seat 2 to move, adjusting the distance between the two adjusting seats 2. The movement of the adjusting seat 2 can drive the two clamped pipe fittings 9 to move closer to each other, so that the ends of the pipe fittings 9 to be welded are attached together. The second bidirectional threaded rod 202 is threadedly engaged with the second threaded sleeve block 302. The rotation of the second bidirectional threaded rod 202 can drive the first roller frame 3 to move, adjusting the distance between the two first roller frames 3, so that the lower roller 303 can support pipe fittings 9 of different diameters to be welded. The activation of the connecting groove 401 can drive the connecting slider to move. The connecting slider will drive the vertical plate 4 to move, and then the vertical plate 4 will drive the clamping cylinder 402 to press the pipe fitting 9 to be welded, fixing the pipe fitting 9 to be welded between the lower roller 303 and the clamping cylinder 402.

[0025] In order to achieve the purpose of linkage of the clamping structures on the two adjusting seats 2, the device adopts the following technical solution: a linkage rod 7 is fixedly connected to one side of the second roller frame 5 on the left, and a connecting through hole 701 is opened in the second roller frame 5 on the right. The connecting through hole 701 is slidably engaged with the linkage rod 7. A limit transmission rod 6 is fixedly connected to the shaft end of the lower roller 303 on the left, and a limit through hole 601 is opened in the lower roller 303 on the right. The limit through hole 601 is slidably engaged with the limit transmission rod 6.

[0026] Two second roller frames 5 are connected together by sliding engagement between the linkage rod 7 and the connecting through hole 701. One roller frame 5 is controlled to rise and fall via the connecting groove 401, while the other roller frame 5 rises and falls synchronously via the linkage rod 7, achieving synchronous automatic clamping. The limiting transmission rod 6 slides and limits engagement with the limiting through hole 601. Firstly, a second bidirectional threaded rod 202 is rotatably installed inside one side of the adjusting seat 2. The second bidirectional threaded rod 202 can be used to adjust the spacing between the first roller frames 3 on one side, while the first roller frames 3 on the other side are simultaneously raised and lowered via the limiting transmission rod 6. The movement of the step controls the distance between the two sets of first roller frames 3. The outer wall of the limiting transmission rod 6 is provided with a protrusion, and the limiting through hole 601 is provided with a groove, so that the limiting transmission rod 6 can only slide within the limiting through hole 601. When the drive motor 304 is started, it drives the lower roller 303 on one side to rotate, which will drive the limiting transmission rod 6 to rotate. The limiting transmission rod 6 will synchronously drive the first roller frame 3 on the other side to rotate, so that the lower roller 303 above the two adjusting seats 2 rotate synchronously, driving the two pipe parts 9 to be welded to rotate one revolution, and completing the welding of the interface of the pipe parts 9 to be welded.

[0027] The working principle and usage process of this utility model are as follows: During use, the pipe fitting 9 to be welded needs to be placed between two lower support rollers 303. The connecting groove 401 is activated, causing the two second support roller frames 5 to move downwards. The downward movement of the second support roller frames 5 causes the upper extrusion roller 501 to move downwards, pressing it against the pipe fitting 9 to be welded, thus fixing the two pipe fittings 9 onto the adjusting seats 2. Then, the rotating disk 103 drives the first bidirectional threaded rod 102 to rotate. The rotation of the first bidirectional threaded rod 102 controls the two adjusting seats 2 to move closer together. When the adjusting seats 2 move closer together, they will cause the clamped pipe fittings 9 to be welded to fit together. At this time, the laser welding head is activated to weld the joint of the pipe fittings 9. Then, the drive motor 304 is activated to drive the lower roller 303 to rotate. One side of the lower roller 303 will drive the other side of the lower roller 303 to rotate through the limit transmission rod 6. The first roller frames 3 on both sides rotate synchronously, and then the lower roller 303 drives the clamped pipe fittings 9 to be welded, so that the two pipe fittings 9 to be welded rotate one revolution, thereby completing the welding of the joint of the pipe fittings 9 to be welded.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A laser welding jig comprising a fixing seat (1), a pipe (9) to be welded, characterized in that: The fixed seat (1) is provided with a first limiting sliding groove (101) on the upper surface, and the fixed seat (1) is symmetrically provided with an adjusting seat (2) above, the adjusting seat (2) is fixedly connected with a first limiting sliding block (203) below, the first limiting sliding block (203) is in sliding fit with the first limiting sliding groove (101), the adjusting seat (2) is fixedly connected with a vertical plate (4) at the back, the adjusting seat (2) is slidably connected with a second idler roller frame (5) at the front, the second idler roller frame (5) is rotatably installed with an upper extrusion idler roller (501) thereon, the adjusting seat (2) is symmetrically provided with a first idler roller frame (3) on the upper surface, the first idler roller frame (3) is rotatably installed with a lower idler roller (303) thereon, one of the first idler roller frames (3) is fixedly connected with a driving motor (304) at the side, and the driving motor (304) is fixedly connected with the lower idler roller (303) at the output end.

2. A laser welding fixture according to claim 1, wherein: The first limiting sliding groove (101) is rotatably installed with a first bidirectional threaded rod (102), one end of the first bidirectional threaded rod (102) is fixedly connected with a rotating disc (103), one of the first limiting sliding blocks (203) is inlaidly installed with a first threaded sleeve block (204) at the left side, and the first threaded sleeve block (204) is in threaded fit with the first bidirectional threaded rod (102).

3. The laser welding fixture of claim 1, wherein: The adjusting seat (2) is provided with a second limiting sliding groove (201) on the upper surface, and the second limiting sliding groove (201) is rotatably installed with a second bidirectional threaded rod (202).

4. A laser welding jig according to claim 3, wherein: The first idler roller frame (3) is fixedly connected with a second limiting sliding block (301) at the lower surface, the second limiting sliding block (301) is inlaidly installed with a second threaded sleeve block (302), and the second threaded sleeve block (302) is in threaded fit with the second bidirectional threaded rod (202).

5. The laser weld fixture of claim 1, wherein: The vertical plate (4) is provided with a clamping air cylinder (402) in each, the second idler roller frame (5) is provided with a connecting sliding block at the back, the connecting sliding block is in sliding fit with the clamping air cylinder (402), the vertical plate (4) is fixedly connected with a connecting groove (401) at the upper surface at the left side, and the connecting groove (401) is fixedly connected with the connecting sliding block at the output end.

6. The laser weld fixture of claim 1, wherein: The second idler roller frame (5) is fixedly connected with a linkage rod (7) at one side at the left side, the second idler roller frame (5) is provided with a connecting through hole (701) at the inside at the right side, the connecting through hole (701) is in sliding fit with the linkage rod (7), the lower idler roller (303) is fixedly connected with a limiting transmission rod (6) at the shaft end at the left side, and the lower idler roller (303) is provided with a limiting through hole (601) at the inside at the right side.

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