Battery tray bottom plate seal welding tool clamp

Abstract

The utility model relates to a battery tray bottom plate seal welding tool clamp which comprises a table top, a front supporting beam is installed on the middle front portion of the table top, a plurality of bottom plate supporting columns are installed on the top face of the front supporting beam, a rear supporting beam is installed on the middle rear portion of the table top, and a plurality of bottom plate supporting columns are installed on the top face of the rear supporting beam. Two positioning seats are mounted in the middle of the table top, a bottom plate center hole positioning pin is mounted on each positioning seat, a plurality of frame supporting columns are further arranged on the table top, two pressing mechanisms are mounted on the front side, the rear side, the left side and the right side of the table top respectively, each pressing mechanism comprises a mounting seat, and a pressing arm is mounted at the top of each mounting seat. A pressing block is arranged at the end, located below the pressing arm, of the screw rod, an adjusting nut is arranged at the end, located above the pressing arm, of the screw rod, and the screw rod is sleeved with a spring. By the adoption of the technical scheme, a workpiece can be rapidly and accurately positioned, the spring is used for pressing to replace a fixed pressing block, the attaching degree of the bottom plate and the frame is better and more stable, and the welding quality is effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of welding fixtures, in particular to a battery tray bottom plate sealing welding fixture. Background Art

[0002] In the production process of battery trays for new energy vehicles, due to the complex shape and structure of the workpiece, welding needs to be carried out step by step, and the stress caused by welding deformation needs to be overcome during welding.

[0003] Although the spot welding of the bottom plate and the frame has been completed before the sealing step, the bottom plate and the frame still have a relative position, and the fit between the bottom plate and the frame is not completely consistent. In addition, due to the different errors of each set of workpieces, the fit will also be different. Therefore, it is necessary to design special tooling for positioning and clamping to ensure the welding quality and use robot operations. Summary of the invention

[0004] The utility model aims to provide an elastically clamped battery tray bottom plate sealing and welding fixture, aiming to solve the problem of poor welding quality caused by difficulty in adjustment and large gap in the fit between the bottom plate and the frame when sealing and welding the tray bottom plate.

[0005] The technical solution adopted by the utility model is: a battery tray bottom plate sealing and welding tool fixture, including a table top, the table top is rectangular in shape, a front support beam is installed on the middle front part of the table top, a plurality of bottom plate support columns are installed on the top surface of the front support beam, a rear support beam is installed on the middle rear part of the table top, a plurality of bottom plate support columns are installed on the top surface of the rear support beam, two positioning seats are installed on the middle part of the table top, the positioning seats are installed with positioning pins of the center hole of the bottom plate, a plurality of frame support columns are also arranged on the table top, and two clamping mechanisms are respectively installed on the front side, the rear side, the left side and the right side of the table top, the clamping mechanism includes a mounting seat, and the mounting seat is also provided with a mounting The mounting plate has a front portion extending above the table top, and a rear portion extending toward the outside of the table top. A frame limit block is installed on the front portion of the mounting plate, and a driving cylinder is installed below the rear portion of the mounting plate. A "T"-shaped pressure arm is installed on the top of the mounting seat, and the driving cylinder drives the pressure arm to lift or press down. A plurality of mounting through holes are provided on the pressure arm, and a screw is installed in each of the mounting through holes. The screw passes through the mounting through hole, and a pressure block is provided on the end of the screw below the pressure arm, and an adjusting nut is provided on the end of the screw above the pressure arm. A spring is provided on the screw at a position between the pressure block and the pressure arm.

[0006] A further technical solution of the utility model is that a material detection device is arranged on the table top to detect whether a workpiece is placed on the tooling and whether the workpiece is in place.

[0007] A further technical solution of the utility model is that lifting rings are arranged on the four corners of the table top, so as to facilitate the use of an overhead crane to move the tooling.

[0008] The beneficial effect of the utility model is that due to the adoption of the above-mentioned technical scheme, a battery tray bottom plate sealing and welding fixture of the utility model can quickly and accurately position the workpiece, and use spring compression instead of fixed pressure blocks to make the fit between the bottom plate and the frame better and more stable, effectively improving the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the overall structure of a battery tray bottom plate sealing welding fixture described in the utility model;

[0010] Figure 2 yes Figure 1 A local enlarged schematic diagram of the middle A;

[0011] Figure 3 It is a top view structural schematic diagram of a battery tray bottom plate sealing welding fixture described in the utility model. DETAILED DESCRIPTION

[0012] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0013] Example:

[0014] like Figures 1 to 3 The battery tray bottom plate sealing and welding fixture shown in the figure includes a table top 1, which is rectangular in shape, a front support beam 2 is installed on the middle front part of the table top, and a plurality of bottom plate support columns 4 are installed on the top surface of the front support beam, a rear support beam 3 is installed on the middle rear part of the table top, and a plurality of bottom plate support columns 4 are installed on the top surface of the rear support beam, two positioning seats 5 are installed on the middle part of the table top, and a positioning pin 51 of the bottom plate center hole is installed on the positioning seat, and a plurality of frame support columns 6 are also arranged on the table top, and two clamping mechanisms 7 are respectively installed on the front side, rear side, left side and right side of the table top, and the clamping mechanism includes a mounting seat 71, and a mounting plate 72 is also arranged on the mounting seat, and the The front part of the mounting plate extends above the table top, and the rear part of the mounting plate extends to the outside of the table top. A frame limit block 73 is installed on the front part of the mounting plate, and a driving cylinder 74 is installed below the rear part of the mounting plate. A "T"-shaped pressure arm 8 is installed on the top of the mounting seat. The driving cylinder drives the pressure arm to lift or press down. A plurality of mounting through holes are arranged on the pressure arm, and a screw is installed in each of the mounting through holes. The screw passes through the mounting through hole, and a pressure block 81 is arranged on the end of the screw below the pressure arm, and an adjusting nut 83 is arranged on the end of the screw above the pressure arm. The screw is provided with a spring 82 at the position between the pressure block and the pressure arm.

[0015] In this embodiment, the clamping mechanism is configured with an electrical control system, and the clamping mechanism is controlled by the electrical control system. The electrical control system can be manually operated or configured with a computer program to achieve automatic control.

[0016] When using the tooling, the workpiece is loaded into the tooling upside down, that is, the battery tray bottom plate is on top and the frame is on the bottom. The frame is supported by the frame support column and limited by the frame limit block. The bottom plate is supported by the bottom plate support column. At the same time, the bottom plate center hole positioning pin passes through the center positioning hole on the bottom plate and is positioned on the tooling. Since the frame is initially positioned on the bottom plate by spot welding in the previous process, the frame will also be positioned as the bottom plate is positioned. After the workpiece is placed, the electrical control system is started to control the clamping mechanism to work, and the pressing arm presses the bottom plate down. Since the frame under the bottom plate is firmly supported by the tooling, under the action of the pressure of the pressing arm, the bottom plate located on the frame will be pressed by the elastic pressing block to make it fit tightly with the frame. The elastic pressing block has the function of adjusting the pressure size, and the pressure size is adjusted by the adjusting nut. During the production process, if the deformation of the bottom plate is large, the pressure of the pressing block can be appropriately increased to ensure the fit between the bottom plate and the frame. The technical solution adopts a multi-point pressing method, and the pressure of each pressing point can be adjusted independently. Compared with a fixed pressing method, it is simpler and more convenient to adjust the pressing block to press the bottom plate.

[0017] Preferably, a material detection device 10 is provided on the table top to detect whether a workpiece is placed on the tooling and whether the workpiece is in place.

[0018] Preferably, lifting rings 9 are provided on the four corners of the table top to facilitate the use of an overhead crane to move the tooling.

[0019] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery tray bottom plate sealing and welding fixture, characterized in that: The utility model comprises a table top, which is in a rectangular shape, a front support beam is installed on the middle front part of the table top, a plurality of bottom plate support columns are installed on the top surface of the front support beam, a rear support beam is installed on the middle rear part of the table top, a plurality of bottom plate support columns are installed on the top surface of the rear support beam, two positioning seats are installed on the middle part of the table top, a positioning pin of the bottom plate center hole is installed on the positioning seat, a plurality of frame support columns are also arranged on the table top, two clamping mechanisms are respectively installed on the front side, the rear side, the left side and the right side of the table top, the clamping mechanism comprises a mounting seat, a mounting plate is also arranged on the mounting seat, and the front part of the mounting plate extends into the table top The rear part of the mounting plate extends to the outside of the table top, a frame limit block is installed on the front part of the mounting plate, a driving cylinder is installed at the lower part of the rear part of the mounting plate, a "T"-shaped pressure arm is installed on the top of the mounting seat, the driving cylinder drives the pressure arm to lift or press down, a plurality of mounting through holes are arranged on the pressure arm, a screw rod is installed in each of the mounting through holes, the screw rod passes through the mounting through hole, a pressure block is arranged on the end of the screw rod located below the pressure arm, an adjusting nut is arranged on the end of the screw rod located above the pressure arm, and a spring is sleeved on the screw rod at the position between the pressure block and the pressure arm.

2. A battery tray bottom plate sealing and welding fixture according to claim 1, characterized in that: A material detection device is arranged on the table top.

3. A battery tray bottom plate sealing and welding fixture according to any one of claims 1 or 2, characterized in that: Hanging rings are arranged on the four corners of the table top.

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