Precision pressure welding device adopting pressure sensor

Abstract

The invention relates to a precision pressure welding device adopting a pressure sensor. The precision pressure welding device comprises a vertical plate; a drive mechanism, a welding chuck and an adjustable mechanism, wherein the drive mechanism is erected on the vertical plate; the welding chuck can fix a round welding head and / or a sheet welding head, the upper part of the welding chuck is provided with a pressure transmission shaft, the pressure sensor is arranged above the pressure transmission shaft, the pressure sensor and the pressure transmission shaft are on a same axis, and the pressure sensor is linked with the drive mechanism to complete precision welding; the adjustable mechanism is detachably connected with the side of the vertical plate, the adjustable mechanism can be installed vertically or horizontally, and drives the vertical plate to move up, down, left and right so as to adjust a welding position. According to the invention, the pressure and the position of a welding head can be controlled accurately, the welding head is prevented from crushing a line on a fine workpiece effectively, the precision pressure welding device not only can meet the needs of multi-row multi-head welding, but also has good versatility; meanwhile, the welding chuck can be directly connected with an electrode cable and has a simple structure.

Description

technical field [0001] The invention relates to a welding device, in particular to a precision pressure welding device using a pressure sensor. Background technique [0002] The applicant has been engaged in the research and development of resistance micro-welding equipment for a long time, so he is familiar with various realization schemes of resistance welding equipment. Generally, resistance welding equipment is driven by various welding power sources, and its structure is relatively complex, and there is still room for improvement. [0003] Pressure sensors have the advantages of accurate detection of force and simple structure, so they are widely used to detect various forces and measure weight. In the field of resistance micro-welding equipment, the pressure sensor is usually applied to the spot welding head by setting the electrode force. The so-called pressure refers to the force that the electrode acts on the weldment. [0004] However, existing welding devices us...

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Problems solved by technology

[0005] 1. The detection force is not accurate enough, which leads to the inability to accurately control the pressure and the position of the welding head, which makes the welding head break the line on the fine workpiece;

[0006] 2. The welding chuck has poor versatility and can only fix a single welding head;

[0007] 3. The welding chuck needs to be connected with the electrode cable by adding connectors, the structure is not simple enough, and there is still room for improvement;

[0008] 4. It cannot meet the needs of multi-row multi-head welding

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