Clamping tool for laser welding

Abstract

The utility model relates to a clamping tool for laser welding. The clamping tool comprises a workbench, first positioning columns are arranged on the longitudinal edge of the workbench at intervals, second positioning columns are arranged on the transverse edge of the workbench, movable clamping blocks are arranged at the diagonal ends of a workpiece, kidney-shaped grooves are formed in the movable clamping blocks, and fixing bolts are inserted into the kidney-shaped grooves in a penetrating mode. The free end of the fixing bolt is fixedly connected with the surface of the workbench, third positioning columns for preventing the movable clamping block from sliding out are arranged on the workbench located on the two sides of the movable clamping block, a rotating head is hinged to the workbench, the peripheral face of the rotating head abuts against the end face of the movable clamping block, and an extension spring is connected between the upper surface of the movable clamping block and the upper surface of the rotating head. According to the laser welding device, the two sides of a workpiece to be welded can abut against the corresponding first positioning column and second positioning column through cooperative arrangement of the movable clamping block and the rotating head, so that position calibration of the workpiece is completed, the laser welding accuracy is improved, and the laser welding device is suitable for industrial production and has very high practicability.

Description

Technical Field

[0001] The utility model belongs to the technical field of welding jigs, and particularly relates to a clamping jig for laser welding. Background Art

[0002] In the existing Chinese patent database, a patent named "Welding Jig" is disclosed, with the application number CN202222597031.2 and the application date September 28, 2022. A welding jig belongs to the technical field of abrasive tool welding, and includes a welding frame, a high-frequency welder, and a positioning jig; a rotating pipe is rotatably arranged on the welding frame, and the rotating pipe is used to support the grinding disc and drive the grinding disc to rotate synchronously; the high-frequency welder is arranged on the welding frame and approaches or moves away from the rotating pipe by means of a horizontal telescopic component; an induction heater is arranged on the side of the high-frequency welder close to the rotating pipe; the positioning jig includes a jig body arranged on the upper end of the grinding disc and two connecting columns; a plurality of fixing plates evenly distributed radially are arranged on the jig body, and limiting grooves are arranged on the fixing plates; the two connecting columns are arranged at the lower ends of any two fixing plates and are connected to the through holes of the grinding disc. The welding jig provided by the utility model realizes the simultaneous welding of multiple tool bodies on the same grinding disc by means of the rotating pipe and the high-frequency welder, and limits the tool bodies by means of the positioning jig, avoiding the influence of uneven heating or inaccurate positioning of the tool bodies on the welding quality of the grinding disc during welding.

[0003] In the prior art, laser welding requires calibration of the placement position of the workpiece, and the accuracy of manual calibration is relatively low. Therefore, this article aims to propose a clamping jig for laser welding, which can calibrate and fix the position of the workpiece through movable blocks. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is that in the prior art, laser welding requires calibration of the placement position of the workpiece, and the accuracy of manual calibration is relatively low. In order to improve its deficiencies, the utility model provides a clamping jig for laser welding.

[0005] To achieve the above object, the utility model is realized by the following technical solutions:

[0006] A clamping jig for laser welding includes a workbench. First positioning columns are arranged at intervals along the longitudinal edges of the workbench, and second positioning columns are arranged along the transverse edges of the workbench. The first positioning columns and the second positioning columns form an L-shaped trajectory for limiting the edges of the workpiece. Movable blocks are arranged at the diagonal ends of the workpiece. Waist-shaped grooves are opened on the movable blocks, and fixing bolts are inserted into the waist-shaped grooves. The free ends of the fixing bolts are fixedly connected to the surface of the workbench. Third positioning columns for preventing the movable blocks from sliding out are arranged on the workbench on both sides of the movable blocks. A rotating head is hinged on the workbench, and the outer peripheral surface of the rotating head abuts against the end surface of the movable block. A tension spring is connected between the upper surface of the movable block and the upper surface of the rotating head.

[0007] As a preferred solution, the movable clamping block is arranged in an isosceles trapezoid shape, a clamping opening is formed at the bottom of the movable clamping block, arc-shaped protrusions that abut against the side of the workpiece are arranged at both free ends of the clamping opening, and a gap is left between the inner side of the clamping opening and the side of the workpiece.

[0008] As a preferred solution, a rotating handle is integrally arranged on the outer side of the rotating head.

[0009] As a preferred solution, a limit adjusting component is arranged on the workbench. The limit adjusting component includes an adjusting seat fixed on the workbench, an adjusting screw is rotatably connected in the adjusting seat, a limit block is connected to the free end of the adjusting screw, the limit block abuts against the side surface of the rotating head, and a rotating wheel is connected to the other end of the adjusting screw.

[0010] As a preferred solution, rubber sleeves are sleeved on the outer peripheral surfaces of the first positioning post, the second positioning post and the third positioning post.

[0011] Compared with the prior art, the beneficial effect of the present utility model is that by using the cooperation of the movable clamping block and the rotating head, both sides of the workpiece to be welded can be abutted against the corresponding first positioning post and the second positioning post, so as to complete the position calibration of the workpiece and improve the accuracy of laser welding. This device is applicable to industrial production and has strong practicability. Description of the Drawings

[0012] Figure 1 It is a structural schematic diagram of the present utility model.

[0013] In the figure: 1 workbench, 2 first positioning post, 3 second positioning post, 4 movable clamping block, 5 waist-shaped groove, 6 fixing bolt, 7 third positioning post, 8 rotating head, 9 tension spring, 10 clamping opening, 11 arc-shaped protrusion, 12 rotating handle, 13 adjusting seat, 14 adjusting screw, 15 limit block, 16 rotating wheel. Detailed Embodiment

[0014] The technical solution of the present application will be further described and illustrated below in conjunction with the drawings and embodiments.

[0015] Such as Figure 1As shown in the figure, there is a clamping tooling for laser welding, which includes a workbench 1. First positioning posts 2 are arranged at intervals along the longitudinal edges of the workbench 1, and a second positioning post 3 is arranged at the transverse edge of the workbench 1. The first positioning posts 2 and the second positioning post 3 form an L-shaped track for limiting the edge of the workpiece. Movable blocks 4 are arranged at the diagonal ends of the workpiece. Waist-shaped slots 5 are opened on the movable blocks 4, and fixing bolts 6 are inserted into the waist-shaped slots 5. The free ends of the fixing bolts 6 are fixedly connected to the surface of the workbench 1. Third positioning posts 7 for preventing the movable blocks 4 from sliding out are arranged on the workbench 1 on both sides of the movable blocks 4. A rotating head 8 is hinged on the workbench 1, and the outer peripheral surface of the rotating head 8 abuts against the end surface of the movable block 4. A tension spring 9 is connected between the upper surface of the movable block 4 and the upper surface of the rotating head 8. The movable block 4 is arranged in an isosceles trapezoid shape. A bayonet 10 is opened at the bottom of the movable block 4. Arc-shaped protrusions 11 that abut against the side of the workpiece are arranged at the free ends on both sides of the bayonet 10. There is a gap between the inner side of the bayonet 10 and the side of the workpiece. The setting of the bayonet 10 facilitates the movable block 4 to abut more conveniently against the corner of the workpiece, occupying less space. At the same time, the setting of the arc-shaped protrusions 11 avoids damaging the side of the workpiece. A rotating handle 12 is integrally arranged on the outer side of the rotating head 8. A limit adjusting component is arranged on the workbench 1. The limit adjusting component includes an adjusting seat 13 fixed on the workbench 1. An adjusting screw 14 is screwed into the adjusting seat 13. The free end of the adjusting screw 14 is connected with a limit block 15, and the limit block 15 abuts against the side of the rotating head 8. The other end of the adjusting screw 14 is connected with a runner 16. The setting of the limit adjusting component can effectively adjust the extrusion degree of the movable block 4 on the workpiece, facilitating the operator to adjust appropriately. Rubber sleeves are sleeved on the outer peripheral surfaces of the first positioning posts 2, the second positioning posts 3 and the third positioning posts 7.

[0016] During operation, the operator places the workpiece on the surface of the workbench 1. At this time, the state of the workpiece is in an unconstrained state and its position has not been calibrated. The operator rotates the rotating handle 12 clockwise, so that the rotating head 8 presses the movable block 4 against the workpiece, making the bayonet 10 of the movable block 4 abut against the side of the workpiece, and at the same time pressing the workpiece, making the two sides of the workpiece abut against the corresponding first positioning posts 2 and the second positioning post 3. At this time, the tension spring 9 is in a stretched state. At the same time, the adjusting screw 14 in the limit adjusting component is adjusted, so that the limit block 15 at the free end abuts against the rotating head 8. When the welding is completed, the adjusting screw 14 is adjusted so that the limit block 15 at the free end of the adjusting screw 14 disengages from the rotating head 8. Due to the resetting effect of the tension spring 9, the movable block 4 moves away from the workpiece along the direction of the waist-shaped slot 5, thus canceling the limit on the workpiece and taking out the workpiece. This device can quickly complete the position calibration of the workpiece and improve the accuracy of laser welding.

[0017] The present utility model is not limited to the above embodiments. Based on the technical solutions disclosed in the present utility model, those skilled in the art can make some substitutions and deformations to some of the technical features without creative labor according to the disclosed technical content, and these substitutions and deformations are all within the protection scope of the present utility model.

Claims

1. A clamping tooling for laser welding, characterized in that: It includes a workbench (1). At the longitudinal edges of the workbench (1), first positioning posts (2) are arranged at intervals. At the transverse edges of the workbench (1), second positioning posts (3) are arranged. The first positioning posts (2) and the second positioning posts (3) form an L-shaped track for limiting the edges of the workpiece. At the diagonal ends of the workpiece, movable clamping blocks (4) are provided. Waist-shaped slots (5) are formed in the movable clamping blocks (4). Fixing bolts (6) are inserted into the waist-shaped slots (5). The free ends of the fixing bolts (6) are fixedly connected to the surface of the workbench (1). Third positioning posts (7) for preventing the movable clamping blocks (4) from sliding out are arranged on the workbench (1) on both sides of the movable clamping blocks (4). A rotating head (8) is hinged on the workbench (1). The outer peripheral surface of the rotating head (8) abuts against the end face of the movable clamping block (4). A tension spring (9) is connected between the upper surface of the movable clamping block (4) and the upper surface of the rotating head (8).

2. The clamping tooling for laser welding according to claim 1, wherein: The movable clamping block (4) is arranged in an isosceles trapezoid shape. A bayonet (10) is formed at the bottom of the movable clamping block (4). Arc-shaped protrusions (11) that abut against the side of the workpiece are arranged at the free ends on both sides of the bayonet (10). A gap is left between the inner side of the bayonet (10) and the side of the workpiece.

3. The clamping tooling for laser welding according to claim 2, characterized in that: A rotating handle (12) is integrally arranged on the outside of the rotating head (8).

4. The clamping tooling for laser welding according to claim 3, characterized in that: A limiting and adjusting component is arranged on the workbench (1). The limiting and adjusting component includes an adjusting seat (13) fixed on the workbench (1). An adjusting screw rod (14) is rotatably connected in the adjusting seat (13). The free end of the adjusting screw rod (14) is connected with a limiting block (15). The limiting block (15) abuts against the side surface of the rotating head (8). The other end of the adjusting screw rod (14) is connected with a runner (16).

5. A clamping tooling for laser welding according to any one of claims 1-4, characterized in that: Rubber sleeves are sleeved on the outer peripheral surfaces of the first positioning posts (2), the second positioning posts (3) and the third positioning posts (7).

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