Laser welding tool

Abstract

The utility model relates to the technical field of laser welding, in particular to a laser welding tool which comprises a base and a base installed in the center of the base, overturning air cylinders are installed on the two sides of the base respectively, the rotating ends of the overturning air cylinders are connected with storage assemblies, abutting assemblies are fixed to the two ends of the base respectively, and the abutting assemblies are connected with the base respectively. A storage assembly is arranged on the base, an abutting assembly is arranged on the storage assembly, a weldment abutting against the abutting assembly is arranged in the storage assembly, the weldment comprises two circular ring pieces provided with circular holes, a pre-positioning piece used for positioning and assembling is installed between the two circular ring pieces through the circular holes, and laser welding assemblies are installed on the two sides of the top of the base. A worker carries out alternate welding work on the two stations, the purpose of alternate continuous welding work is achieved, and the welding efficiency is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of laser welding technology, specifically a laser welding fixture. Background Technology

[0002] Components in existing electric vehicle automatic door products require laser welding. One such component consists of two annular parts with circular holes on their sidewalls. Four welds are required at the circumferential connection of this component. During the welding process, heat input must be strictly controlled to ensure weld quality. Currently, the component needs to be cooled and flipped after welding two welds to prevent the component from overheating before welding the other two welds. This causes the cooling process to be interrupted during welding, affecting the overall welding efficiency. Therefore, a laser welding fixture with dual stations, alternating flipping of the weldment, and pre-positioning capability for the two annular parts needs to be designed to solve the above problems. Utility Model Content

[0003] The purpose of this invention is to provide a laser welding fixture to solve the problems mentioned in the background art.

[0004] The technical solution of this utility model is: a laser welding fixture, including a base and a base installed at the center of the base, a tilting cylinder installed on both sides of the base, a placement component connected to the rotating end of the tilting cylinder, a clamping component fixed at both ends of the base, a welding part placed inside the placement component and clamping the welding part to the clamping component, the welding part including two annular parts with circular holes, a pre-positioning component for positioning and assembly installed between the two annular parts through the circular holes, and a laser welding component installed on both sides of the top of the base.

[0005] The aforementioned components achieve the following effects: the pre-positioning component enables pre-assembly and positioning of the weldment composed of two circular rings. The assembled weldment is then installed on the placement component on the left side of the base, and the weldment is secured by the clamping component on the left side. The laser welding component then begins welding the two weld seams on the top of the weldment. After welding, the clamping component is released, and the rotating cylinder rotates the weldment 180 degrees. The clamping component then secures the weldment again, completing the welding of the two weld seams on the other side of the weldment. The fixture is divided into two workstations, left and right. When welding is performed at the left workstation, the right workstation performs the rotation and positioning work. When welding is performed at the right workstation, the left workstation performs the rotation and positioning work. During the rotation and positioning, the weldment can undergo natural cooling. The operator performs alternating welding work at the two workstations, achieving the purpose of alternating continuous welding work and effectively improving welding efficiency.

[0006] Preferably, the storage assembly includes a storage seat fixed on the rotating end of the tilting cylinder, and the storage seat has a storage groove adapted to the weldment.

[0007] The above components achieve the following effects: the welding parts can be placed and fixed through the storage slot on the storage base, and can be flipped in conjunction with the flipping cylinder.

[0008] Preferably, the prepositioning component includes a positioning piece, the bottom of which is fixed with a positioning post inserted into the weldment, and a hole is provided at the center of the top of the positioning piece.

[0009] The aforementioned components achieve the following effects: the positioning pins on the positioning plate can be inserted into the weldment to perform pre-assembly and positioning of the two ring parts, and the holes facilitate laser welding.

[0010] Preferably, the positioning piece has an extension protrusion on one side, and the inner side of the storage slot has a slot that matches the extension protrusion.

[0011] The effect achieved by the above-mentioned components is that the extended protrusions can engage with the slot after the weldment is placed in the storage groove, thus preventing the weldment from rotating.

[0012] Preferably, the clamping assembly includes a side frame fixed to the end of the base, a clamping cylinder fixed on the side frame, and a clamping plate for clamping the weldment fixed on the extended end of the clamping cylinder.

[0013] The effect achieved by the above components is that the clamping cylinder can drive the clamping plate to clamp the weldment, thus preventing shaking during the welding process.

[0014] This utility model provides an improved laser welding fixture, which has the following improvements and advantages compared with the prior art:

[0015] Firstly, this utility model uses a pre-positioning component to pre-assemble and position a weldment composed of two circular rings. The assembled weldment is then installed on the placement component on the left side of the base, and the weldment is pressed against the left side by a clamping component. Then, the laser welding component is used to start welding the two weld seams on the top of the weldment. After the welding is completed, the clamping component is released, and then the flipping cylinder drives the weldment to rotate 180 degrees. The clamping component presses the weldment against the left side again, completing the welding of the two weld seams on the other side of the weldment. The fixture is divided into two workstations, left and right. When the welding is performed at the left workstation, the right workstation performs the flipping and positioning work, and vice versa. During the flipping and positioning, the weldment can be naturally cooled. The operator performs alternating welding work at the two workstations, achieving the purpose of alternating continuous welding work and effectively improving welding efficiency.

[0016] Secondly, this utility model allows the positioning pins on the positioning plate to be inserted into the weldment for pre-assembly positioning of the two ring parts. The extended protrusions can engage with the slot after the weldment is placed in the placement groove, preventing the weldment from rotating. Attached Figure Description

[0017] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the assembly structure of the prepositioning component in this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Base; 2. Base; 3. Tilting cylinder; 4. Storage assembly; 41. Storage seat; 42. Storage slot; 43. Slot; 5. Clamping assembly; 51. Side frame; 52. Pressing cylinder; 53. Clamping plate; 6. Welded parts; 7. Pre-positioning parts; 71. Positioning piece; 72. Hole; 73. Positioning post; 74. Extension protrusion; 8. Laser welding assembly. Detailed Implementation

[0022] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0023] This utility model provides an improved laser welding fixture. The technical solution of this utility model is as follows:

[0024] In embodiments of this utility model, such as Figures 1-2As shown, a laser welding fixture includes a base 1 and a base 2 installed at the center of the base 1. Tilting cylinders 3 are installed on both sides of the base 2. A placement assembly 4 is connected to the rotating end of each tilting cylinder 3. The placement assembly 4 includes a placement seat 41 fixed to the rotating end of the tilting cylinder 3. The placement seat 41 has a placement groove 42 adapted to the workpiece 6. The workpiece 6 can be placed and fixed via the placement groove 42 on the placement seat 41, and is tilted in conjunction with the tilting cylinder 3. Both ends of the base 1 are fixed with abutment. Component 5, the clamping component 5 includes a side frame 51 fixed to one end of the base 1, a clamping cylinder 52 fixed on the side frame 51, and a clamping plate 53 for clamping the weldment 6 fixed on the extended end of the clamping cylinder 52. The clamping cylinder 52 can drive the clamping plate 53 to clamp the weldment 6, preventing shaking during welding. The placement component 4 houses the weldment 6 that clamps against the clamping component 5. The weldment 6 includes two annular parts with circular holes, and a positioning assembly is installed between the two annular parts through the circular holes. The pre-positioning component 7 includes a positioning piece 71. A positioning post 73, which is inserted into the weldment 6, is fixed to the bottom of the positioning piece 71. A hole 72 is provided at the center of the top of the positioning piece 71, allowing it to be inserted into the weldment 6 via the positioning post 73. This serves the purpose of pre-assembling and positioning two ring parts. The hole 72 facilitates laser welding. An extension protrusion 74 is provided on one side of the positioning piece 71, and a slot 43 adapted to the extension protrusion 74 is provided inside the storage groove 42. 4. After the workpiece 6 is placed in the storage slot 42, it can be engaged with the slot 43 to prevent the workpiece 6 from rotating. Laser welding components 8 are installed on both sides of the top of the base 2. The tooling is divided into left and right stations. When welding is performed on the left station, the right station performs flipping and positioning work. When welding is performed on the right station, the left station performs flipping and positioning work. During the flipping and positioning, the workpiece 6 can be naturally cooled. The operator performs alternating welding work on the two stations to achieve the purpose of alternating continuous welding work.

[0025] The working principle of the laser welding fixture provided by this utility model is as follows: The positioning pin 73 on the positioning plate 71 can be inserted into the weldment 6 to perform pre-assembly and positioning of the weldment 6 composed of two ring parts. Then, the assembled weldment 6 is installed on the placement component 4 on the left side of the base 2. The placement groove 42 on the placement base 41 can place and fix the weldment 6. The extension protrusion 74 can engage with the slot 43 after the weldment 6 is placed in the placement groove 42. Then, the clamping cylinder 52 on the left side can drive the clamping plate 53 to clamp the weldment 6. Then, the laser welding component is used to clamp the weldment 6. 8. Begin welding the two welds on the top of the workpiece 6. After welding, release the clamping component 5, then rotate the workpiece 6 180 degrees using the flipping cylinder 3. The clamping component 5 then clamps the workpiece 6 again, completing the welding of the two welds on the other side of the workpiece 6. The fixture is divided into two stations, left and right. When welding is performed at the left station, the right station performs the flipping and positioning work. When welding is performed at the right station, the left station performs the flipping and positioning work. During the flipping and positioning, the workpiece 6 can be allowed to cool naturally. The workers perform alternating welding work at the two stations to achieve the purpose of alternating continuous welding work.

[0026] 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 fixture, comprising a base (1) and a base (2) mounted at the center of the base (1), characterized in that: The base (2) is equipped with a tilting cylinder (3) on both sides. The rotating end of the tilting cylinder (3) is connected to a placement component (4). Both ends of the base (1) are fixed with a clamping component (5). The placement component (4) contains a welded part (6) that clamps against the clamping component (5). The welded part (6) includes two circular rings with circular holes. A pre-positioning component (7) for positioning and assembly is installed between the two circular rings through the circular holes. Laser welding components (8) are installed on both sides of the top of the base (2).

2. The laser welding fixture according to claim 1, characterized in that: The storage assembly (4) includes a storage seat (41) fixed on the rotating end of the tilting cylinder (3), and the storage seat (41) has a storage groove (42) adapted to the weldment (6).

3. The laser welding fixture according to claim 2, characterized in that: The prepositioning component (7) includes a positioning piece (71), the bottom of which is fixed with a positioning post (73) inserted into the weldment (6), and a hole (72) is provided at the center of the top of the positioning piece (71).

4. The laser welding fixture according to claim 3, characterized in that: The positioning piece (71) has an extension protrusion (74) on one side, and the storage groove (42) has a slot (43) that matches the extension protrusion (74) on the inner side.

5. The laser welding fixture according to claim 1, characterized in that: The clamping assembly (5) includes a side frame (51) fixed to the end side of the base (1), a clamping cylinder (52) fixed on the side frame (51), and a clamping plate (53) for clamping the weldment (6) fixed on the extended end of the clamping cylinder (52).

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