A four-pin spot welding head device

Abstract

The present invention provides a four -needle welding header, including laser -to -pairing mechanism, location sensing mechanism, fixed base, welding needle -oriented mechanism, pressure adjustment mechanism, welding needle position adjustment mechanism, and rapid welding needle adjustment mechanism;There is a point welding head plate with an open hole, and the rapid welding needle adjustment mechanism is set on the front end of the point welding head stand, and the fast welding needle adjustment mechanism has a guidance pores;In the back end, the laser -to -level mechanism is located on a fixed base; the welding needle position adjustment mechanism and the welding needle -oriented mechanism can be moved, and the welding needle -oriented mechanism slides on the rapid welding needle adjustment mechanism; the front end of the pressure adjustment mechanism is fixed on the weldingOn the needle -oriented mechanism, the end is extended to the front end of the position sensing mechanism.Advantages of the present invention: The welding header device of the present invention can improve the welding efficiency of the welding joint and ensure the welding quality of the welding joint, and at the same time, it can greatly increase the rate of needle adjustment.

Description

Technical field [0001] The present invention involves the field of point welding equipment and specially involves a four -needle welding header. Background technique [0002] Lithium cells are currently the main in China. It is widely used in laptop computers, mobile power, electric tools, electric bicycles, electric motorcycles, electric vehicles, solar energy storage power supply, wind energy storage power supply, base station energy storage power supply, etc. In the field. In the process of assembling the battery cell into a module, you need to carry out point welding connection to the battery cell. In the field of welding machine welding, people are pursuing high welding efficiency, small welding material area, convenient for debugging of the spot welding machine, etc. Combined products. The basic mode of the battery welding is to welded a pair of polar nickel sheets with the battery cells, and a single point welding node needs to point the welding joints everywhere. [0003]...

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Problems solved by technology

[0003] In order to solve the above problems, the existing production technology generally adopts double welding to carry out two spot welding on the end face of a single cell, so as to achieve spot welding of four welding points. Therefore, the existing method is not only low in welding efficiency, but also in operation During the long-term debugging of personnel and the process of changing the module alignment, due to the tedious and time-consuming debugging steps, it is easy to have inaccurate alignment and poor spot welding.

[0004] After retrieval, the application date is 2016.05.13, and the Chinese invention patent with the application number 201610319405.0 discloses a four-point welding device. Although the device can realize spot welding of four welding points at the same time and improve the efficiency of spot welding, however, the The welding device has the following defects: 1. Radial rotation is used to adjust the angle of the welding needle clamp, but in actual implementation, the angle of radial rotation is often difficult to accurately grasp, and the fast and accurate adjustment of the welding needle position cannot be realized. And the needle adjustment rate is relatively low; 2. Without using a special alignment mechanism, it is impossible to achieve accurate alignment of the position to be spot welded, and the spot welding accuracy is relatively poor; 3. The pressure control uses a linear bearing, which requires an additional rotation limit This also complicates the entire pressure regulation mechanism

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