Welding fixture for laser filler wire welding machine

Abstract

The utility model discloses a welding fixture for a laser filler wire welding machine, which comprises a welding table, a table plate is fixedly mounted on the welding table, a rotary table motor is fixedly mounted at the lower end of the table plate, and an output shaft of the rotary table motor penetrates through the table plate and is fixedly connected with a rotary table; a jig base is fixedly installed on the rotary table, a jig table is fixedly installed on the jig base, a reinforcing plate positioning structure is installed on the jig table, reinforcing plate pressing structures are symmetrically installed on the two sides of the jig base, and the other two sides of the jig base are each fixedly provided with two rotary pressing air cylinders. A stud positioning structure is installed on a rotating arm of the rotating pressing air cylinder. The welding fixture for the laser filler wire welding machine has the advantages that the stability in the welding process can be improved, the stud positioning precision is ensured, and the efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of laser wire filler welding machine technology, and in particular to a welding fixture for a laser wire filler welding machine. Background Technology

[0002] In the production process of battery packs, reinforcement components are required. These components include a reinforcing plate and four studs welded to the reinforcing plate. The upper part of the reinforcing plate is used to place the electronic control components, and the lower part of the reinforcing plate is used to place the battery pack. Both the reinforcing plate and the studs are made of aluminum.

[0003] When welding studs to reinforcing plates, a laser filler wire welding machine is required, using aluminum welding wire. During the welding process, the studs need to be positioned. However, for cylindrical workpieces, positioning is difficult, the accuracy is poor, and the stability of the welding process is poor, resulting in a large number of defective reinforcing parts, poor product quality, and low efficiency. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by this patent application is how to provide a welding fixture for a laser wire filler welding machine that can improve the stability of the welding process, ensure the positioning accuracy of the stud, and achieve high efficiency.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A welding fixture for a laser wire filler welding machine includes a welding table, a platform fixedly mounted on the welding table, a turntable motor fixedly mounted on the lower end of the platform, and the output shaft of the turntable motor passing through the platform and fixedly connected to the turntable.

[0007] A fixture base is fixedly installed on the turntable, a fixture platform is fixedly installed on the fixture base, a reinforcing plate positioning structure is installed on the fixture platform, reinforcing plate clamping structures are symmetrically installed on both sides of the fixture base, and two rotary clamping cylinders are fixedly installed on the other two sides of the fixture base. The rotating arms of the rotary clamping cylinders are equipped with stud positioning structures.

[0008] In this way, the reinforcing plate is placed on the jig table, and the reinforcing plate is positioned using the reinforcing plate positioning structure. The two ends of the reinforcing plate are pressed by the two reinforcing plate clamping structures. The stud is installed on the stud positioning structure. The rotating clamping cylinder drives the stud to rotate and press it onto the reinforcing plate. The reinforcing plate and stud are then filled with wire using a laser wire filling welding machine.

[0009] The reinforcing plate positioning structure includes eight positioning pins, with two positioning pins fixed at the corner positions of the fixture table.

[0010] The reinforcing plate clamping structure includes a clamping cylinder fixedly installed on the fixture base. The cylinder rod of the clamping cylinder is hinged to a pressure arm. The cylinder seat of the clamping cylinder is fixed to a support. The support is rotatably connected to a support arm. The support arm is rotatably connected to the pressure arm. The pressure arm is fixedly installed with a pressure member. Both ends of the pressure member are provided with clearance openings facing the stud positions.

[0011] The stud positioning structure includes a positioning cylinder, with several internally threaded cylinders fixed to the outside of the positioning cylinder. A ball screw is installed inside the internally threaded cylinder. The positioning cylinder has a through hole facing the inner hole of the internally threaded cylinder. The ball end of the ball screw is located inside the positioning cylinder and is used to abut against the stud.

[0012] The upper end of the positioning cylinder is fixed with a screw, and the rotating arm has a through hole through which the screw passes and is connected to a nut.

[0013] The fixture base is equipped with a limiting platform for each rotary clamping cylinder, and the limiting platform is located between the rotary clamping cylinder and the fixture platform.

[0014] The fixture platform has notches on both sides.

[0015] In summary, the welding fixture for this laser wire-filling welding machine has the advantages of improving the stability of the welding process, ensuring stud positioning accuracy, and high efficiency. Specifically, it has the following beneficial effects:

[0016] 1. Solved the problem of welding arc-shaped breaks in laser-welded aluminum alloys;

[0017] 2: Increase the stability of the product's physical strength;

[0018] 3. Automated welding improves the stability of product quality during mass production;

[0019] 4. Compared with traditional welding, the time and efficiency are greatly improved. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a welding fixture for a laser wire filler welding machine according to the present invention.

[0021] Figure 2 for Figure 1 A schematic diagram showing the installation of reinforcing plates and studs.

[0022] Figure 3 for Figure 2 A schematic diagram of the central stud located on the reinforcing plate. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings. In the description of the present invention, it should be understood that directional terms such as "upper," "lower," "top," and "bottom" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are used only for the convenience of describing the present invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of the present invention. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0024] like Figure 1-3 As shown, a welding fixture for a laser wire filler welding machine includes a welding table 1, a platform 2 fixedly mounted on the welding table, a turntable motor fixedly mounted on the lower end of the platform, the output shaft of the turntable motor passing through the platform and fixedly connected to the turntable 3; the lower surface of the turntable slides against the upper surface of the platform.

[0025] A fixture base 4 is fixedly installed on the turntable, a fixture platform 5 is fixedly installed on the fixture base, a reinforcing plate positioning structure is installed on the fixture platform, reinforcing plate clamping structures are symmetrically installed on both sides of the fixture base, and two rotary clamping cylinders 6 are fixedly installed on the other two sides of the fixture base, and stud positioning structures are installed on the rotating arms 7 of the rotary clamping cylinders.

[0026] Thus, the reinforcing plate 8 is placed on the fixture table, and the reinforcing plate is positioned using the reinforcing plate positioning structure. The two ends of the reinforcing plate are pressed by the two reinforcing plate clamping structures. The stud 9 is installed on the stud positioning structure. The stud is rotated and pressed onto the reinforcing plate using a rotary clamping cylinder. The reinforcing plate and stud are then filled with wire using a laser filler wire welding machine.

[0027] In implementation, the reinforcing plate positioning structure includes eight positioning pins 10, with two positioning pins fixed at each corner of the fixture table. The two positioning pins enable corner positioning of a reinforcing plate, and the eight positioning pins achieve overall positioning of the reinforcing plate.

[0028] In implementation, the reinforcing plate clamping structure includes a clamping cylinder 11 fixedly mounted on the fixture base. A clamping arm 12 is hinged to the cylinder rod of the clamping cylinder. A support 13 is fixed to the cylinder seat of the clamping cylinder. A support arm 14 rotates on the support and is rotatably connected to the clamping arm. A clamping member 15 is fixedly mounted on the clamping arm. Both ends of the clamping member have clearance openings facing the studs. The clamping cylinder drives the clamping arm and clamping member to move downwards, pressing the clamping member against the reinforcing plate. The clearance openings facing the studs on the clamping member improve the stability of the welding process.

[0029] In implementation, the stud positioning structure includes a positioning cylinder 16, with several internally threaded cylinders 17 fixed to its outer side. A ball screw is installed inside each internally threaded cylinder. The positioning cylinder has a through hole facing the inner hole of the internally threaded cylinder. The ball end of the ball screw is located inside the positioning cylinder and is used to abut against the stud. When positioning the stud, it is inserted from the lower end of the positioning cylinder and pushed upwards until it reaches between the ball screws. The ball screws then press and fix the stud. After welding, the stud is fixed to the reinforcing plate, and the clamping cylinder can be rotated to reset it.

[0030] When the rotary clamping cylinder is reset, the rotating arm moves upward and then rotates outward.

[0031] In practice, a screw 18 is fixed to the upper end of the positioning cylinder, and a through hole is provided on the rotating arm. The screw passes through the through hole and is connected to a nut 19. This facilitates the connection between the positioning cylinder and the rotating arm.

[0032] In practice, each of the fixture bases is equipped with a limiting platform 10 corresponding to the rotary clamping cylinder, and the limiting platform is positioned between the rotary clamping cylinder and the fixture base. The rotary clamping cylinder drives the positioning cylinder to move, and the rotating arm rotates and then descends. The limiting platform limits and supports the descent of the rotating arm.

[0033] During implementation, notches are provided on both sides of the fixture platform to facilitate the placement and removal of the reinforcing plate.

[0034] Action process:

[0035] Place the reinforcing plate on the fixture table → insert the stud into the positioning cylinder → rotate and press down the clamping cylinder to position → the robotic arm of the laser wire filler welding machine completes the laser wire filler welding → remove the welded finished product.

[0036] Finally, it should be noted that those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A welding fixture for a laser wire filler welding machine, characterized in that, The system includes a welding table, on which a platform is fixedly mounted. A turntable motor is fixedly mounted at the lower end of the platform, and the output shaft of the turntable motor passes through the platform and is fixedly connected to the turntable. A fixture base is fixedly installed on the turntable, a fixture platform is fixedly installed on the fixture base, a reinforcing plate positioning structure is installed on the fixture platform, reinforcing plate clamping structures are symmetrically installed on both sides of the fixture base, and two rotary clamping cylinders are fixedly installed on the other two sides of the fixture base. The rotating arms of the rotary clamping cylinders are equipped with stud positioning structures.

2. The welding fixture for a laser wire filler welding machine according to claim 1, characterized in that, The reinforcing plate positioning structure includes eight positioning pins, with two positioning pins fixed at each corner of the fixture table.

3. The welding fixture for a laser wire filler welding machine according to claim 2, characterized in that, The reinforcing plate clamping structure includes a clamping cylinder fixedly installed on the fixture base. The cylinder rod of the clamping cylinder is hinged to a pressure arm. The cylinder seat of the clamping cylinder is fixed to a support. The support rotates to have a support arm. The support arm is rotatably connected to the pressure arm. The pressure arm is fixedly installed with a pressure member. Both ends of the pressure member are provided with clearance openings facing the stud positions.

4. The welding fixture for a laser wire filler welding machine according to claim 3, characterized in that, The stud positioning structure includes a positioning cylinder, with several internally threaded cylinders fixed to the outside of the positioning cylinder. A ball screw is installed inside the internally threaded cylinder. The positioning cylinder has a through hole facing the inner hole of the internally threaded cylinder. The ball end of the ball screw is located inside the positioning cylinder and is used to abut against the stud.

5. A welding fixture for a laser wire filler welding machine according to claim 4, characterized in that, A screw is fixed to the upper end of the positioning cylinder, and a through hole is provided on the rotating arm. The screw passes through the through hole and is connected to a nut.

6. A welding fixture for a laser wire filler welding machine according to claim 5, characterized in that, Each fixture base is equipped with a limiting platform corresponding to the rotary clamping cylinder, and the limiting platform is located between the rotary clamping cylinder and the fixture base.

7. A welding fixture for a laser wire filler welding machine according to claim 6, characterized in that, The fixture platform has notches on both sides.

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