Tool for welding connecting column on battery shell cross beam

Abstract

The utility model discloses a tool for welding a connecting column on a battery shell cross beam, and relates to the technical field of automobile part manufacturing. The welding device comprises a bottom plate, an installation supporting block, a robot grabbing arm, a cross beam clamping mechanism and a lifting oil cylinder, in the production process of welding a connecting column on a battery shell cross beam, during welding operation, welding slag splashes to the periphery of the installation supporting block, and the welding slag is prevented from splashing to the periphery of the installation supporting block; due to the fact that the area of the round outline of the upper surface of the protruding part is smaller than or equal to that of the round outline of the lower bottom face of the connecting column, and the connecting column is placed in the middle of the protruding part of the installation supporting block, welding slag cannot be splashed on the upper surface of the protruding part in the welding process, and indentations on the lower surface of the connecting column cannot be generated in the continuous production process.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts manufacturing, in particular to a tooling for welding connecting columns of a battery case cross beam. Background Art

[0002] In the production and manufacturing process of new energy vehicle battery cases, it is necessary to weld connecting columns on the front cross beam assembly / middle cross beam assembly of the battery case, and arc welding is carried out at the place where the connecting column overlaps with the beam body. During the welding process, the splashed welding slag will fall on the surface of the installation support block used for positioning and supporting the connecting column. In order to prevent the connecting column from rusting, the anti-rust oil applied will adhere to the welding slag and accumulate on the installation support block. The added air blowing function cannot completely remove the welding slag. During the production process, when the connecting column is placed on the installation support block, the bottom surface of the connecting column in contact with the installation support block will form indentations due to the presence of welding slag. The formation of these indentations will affect the airtightness requirements of the battery pack, and when the indentations are serious, the rejection rate will increase. Therefore, the industry needs a tooling for welding connecting columns of a battery case cross beam that can prevent the generation of indentations. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a tooling for welding connecting columns of a battery case cross beam to prevent the generation of indentations on the connecting columns during the production process.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A tooling for welding connecting columns of a battery case cross beam includes a bottom plate, an installation support block, a robot gripper arm, a cross beam clamping mechanism, and a lifting oil cylinder. The installation support block is installed on the bottom plate through fasteners. The robot gripper arm is arranged on the side of the installation support block. There are two cross beam clamping mechanisms, which are respectively located at both ends of the battery case cross beam. The lifting oil cylinder drives the cross beam clamping mechanism to move up and down.

[0006] In the above tooling for welding connecting columns of a battery case cross beam, an installation support block protrusion is provided on the installation support block.

[0007] In the above tooling for welding connecting columns of a battery case cross beam, the circular contour of the upper surface of the protrusion of the installation support block protrusion is less than or equal to the circular contour of the lower bottom surface of the connecting column.

[0008] The utility model has the following advantages:

[0009] In the utility model, during the production process of welding connecting columns on the battery case cross beam, when welding operations are carried out, the welding slag will splash around the installation support block. Since the area of the circular contour of the upper surface of the protrusion is less than or equal to the area of the circular contour of the lower bottom surface of the connecting column, and the connecting column is centered on the protrusion of the installation support block, the welding slag will not splash on the upper surface of the protrusion during the welding process. During the continuous production process, indentations on the lower surface of the connecting column will not be generated. Brief Description of the Drawings

[0010] Figure 1 is a schematic diagram of the present utility model;

[0011] Figure 2 is a three-dimensional schematic diagram of the mounting bracket;

[0012] Each label in the figure respectively represents: 1, bottom plate; 2, mounting bracket; 3, robot gripper arm; 4, crossbeam clamping mechanism; 5, lifting oil cylinder; 6, connecting column; 7, battery case crossbeam; 2-1, mounting bracket protrusion; 2-2, upper surface of the protrusion. Detailed Description of the Preferred Embodiments

[0013] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0014] A tooling for welding and connecting columns of a battery case crossbeam of the present utility model, as Figure 1 shown, includes a bottom plate 1, a mounting bracket 2, a robot gripper arm 3, a crossbeam clamping mechanism 4, and a lifting oil cylinder 5. There are two mounting brackets 2, both of which are installed on the bottom plate 1 through fasteners. The robot gripper arm 3 is arranged on the side of the mounting bracket 2 and is used to grab the connecting column 6 and position it on the mounting bracket 2. There are two crossbeam clamping mechanisms 4, which are respectively located at both ends of the battery case crossbeam 7 and are used to clamp the battery case crossbeam 7. The lifting oil cylinder 5 drives the crossbeam clamping mechanism 4 to move up and down.

[0015] A tooling for welding and connecting columns of a battery case crossbeam of the present utility model, as Figure 2 shown, the mounting bracket 2 is provided with a mounting bracket protrusion 2-1, and the circular contour area of the upper surface 2-2 of the mounting bracket protrusion 2-1 is less than or equal to the circular contour area of the lower bottom surface of the connecting column 6, and the connecting column 6 is centered and placed on the mounting bracket protrusion 2-1.

[0016] The working principle of a tooling for welding and connecting columns of a battery case crossbeam of the present utility model: During production operations, the robot controls the robot gripper arm 3 to position and place the connecting column 6 on the mounting bracket 2. Then, the lifting oil cylinder 5 operates to drive the crossbeam clamping mechanism 4 to move downward, driving the battery case crossbeam 7 to move downward. The upper end of the connecting column 6 penetrates into the reserved hole on the battery case crossbeam 7. When the battery case crossbeam 7 abuts against the lower boss of the connecting column 6, the downward movement stops, and then welding operations are carried out to weld the battery case crossbeam 7 and the connecting column 6. Since the lower end surface of the connecting column 6 covers the upper surface 2-2 of the protrusion, the welding slag during welding splashes around the mounting bracket 2 and does not splash on the upper surface 2-2 of the protrusion. Therefore, during continuous production, the upper surface 2-2 of the protrusion will always remain clean and will not produce indentations on the connecting column 6 during the pressing process.

Claims

1. A tool for welding a battery shell crossbeam connecting column, characterized in that: The invention comprises a base plate (1), a mounting bracket (2), a robot grabbing arm (3), a beam clamping mechanism (4), and a lifting cylinder (5). The mounting bracket (2) is mounted on the base plate (1) by means of fasteners. The robot grabbing arm (3) is arranged on the side of the mounting bracket (2). Two beam clamping mechanisms (4) are arranged, respectively located at the two ends of a battery shell beam (7). The lifting cylinder (5) drives the beam clamping mechanism (4) to move up and down.

2. A tool for welding a battery shell cross beam to a connecting column according to claim 1, characterized in that: The mounting support block (2) is provided with a mounting support block protrusion (2-1).

3. A tool for welding a battery shell cross beam to a connecting column according to claim 2, characterized in that: The circular contour of the upper surface (2-2) of the protruding portion (2-1) of the mounting bracket is smaller than or equal to the circular contour of the lower bottom surface of the connecting column (6).

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