Pressing mechanism used for minibus welding

Abstract

The invention discloses a pressing mechanism used for minibus welding. An angle base is arranged in the middle of the front of a platform, a template is installed on the angle base, and two cushion blocks are arranged in parallel on the top surface of the template and are in an L shape. A support is installed in the middle of the platform, an air cylinder is arranged on a vertical plate at the upper end of the support, a piston rod of the air cylinder is hinged to one end of a pressing arm, two pressing blocks are arranged on the bottom surface of the pressing arm, and a positioning block matched with the pressing blocks is fixed to the top surface of the vertical plate. A supporting block is arranged on the plate surface of the upper portion of the vertical plate, an electrode guiding block is installed on the top surface of the supporting block, a backing plate fixedly supports the electrode guiding block, and a connecting block is arranged over the backing plate. Firmness of clamping positioning is good, control buttons of the air cylinder are arranged on the top plate in a concentrated and clear mode, and an operation box is firmly connected with the platform to effectively prevent shaking when the buttons are operated.

Description

technical field [0001] The invention belongs to the technical field of fixtures, and in particular relates to a pressing mechanism for van welding. Background technique [0002] The D-pillar of the van is set on the side of the vehicle body, and it plays a vital role in the safety performance of the side structure of the van. The D-pillar of a van is generally composed of the lower outer panel assembly of the D-pillar and the upper outer panel of the D-pillar. When welding, it is usually completed in three processes, namely: 1) welding the lower outer panel assembly of the D-pillar; 2) welding the D-pillar The lower outer panel assembly is welded together with the upper outer panel of the D-pillar; 3) Repair welds. The first process and the second process of van D-pillar welding have special fixtures for clamping and positioning, and the third process is often carried out directly with the fixture of the second process after the completion of the second process. Due to the ...

AI Technical Summary

Problems solved by technology

The first process and the second process of van D-pillar welding have special fixtures for clamping and positioning, and the third process is often carried out directly with the fixture of the second process after the completion of the second process. Due to the fixture structure of the second process Complicated, there are many clamping and positioning positions for the lower outer panel assembly of the D-pillar and the upper outer panel of the D-pillar. The welding place is covered by the fixture in the second process. After the workpiece is removed, it needs to be repaired again. Due to the negligence of the staff, it is easy to cause missing welding. Not only is the welding quality difficult to guarantee, but it also fails to meet the requirements of consistent production.

In addition, the panel that controls the action of the fixture is usually supported on the ground by a bracket, which is far away from the fixture, making it inconvenient for the staff to operate, and time-consuming and laborious

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