A Clamping Mechanism for Large Sheet Workpieces Used for Welding

Abstract

A clamping mechanism for a large sheet-shaped workpiece for welding, comprising: a workpiece clamping device and a clamping drive device, the workpiece clamping device includes a workpiece adsorption device and a stop mechanism, the stop mechanism is arranged at the lower end of the workpiece adsorption device, The stop mechanism and the workpiece adsorption device are connected to each other by screws. The workpiece clamping device is a symmetrical structure. The workpiece clamping devices are respectively arranged on both sides of the workpiece for clamping and absorbing the workpiece. The clamping drive device includes a cam crank The mechanism and the shell that play a supporting role, the cam crank mechanism is arranged inside the shell, and the cam crank mechanism is used to adjust the clamping degree of the workpiece clamping device. The present invention can realize the thickness direction and gravity vertical The direction is vertical, thereby reducing the problem of gravity deflection during hoisting, and this double-sided adsorption method strengthens the safety of clamping.

Description

technical field [0001] The invention relates to the field of welding fixtures, in particular to a clamping mechanism for large-scale sheet workpieces for welding, and the IPC classification number involved is B23K37 / 04. Background technique [0002] At present, with the rapid development of science and industry technology, industrial manufacturing technology has made revolutionary breakthroughs, and the performance of corresponding processing and manufacturing, testing, experiment and other equipment is becoming more and more powerful. Human life and work will use a variety of Clamping device, the application range of clamping device is getting wider and wider. Clamping device refers to the device used to fix the processing object in the process of mechanical manufacturing so that it can occupy the correct position to accept construction or inspection, also known as fixture. In a broad sense, in any process in the process, the device used to install the workpiece quickly, c...

AI Technical Summary

Problems solved by technology

The clamping device is an indispensable process equipment in mechanical processing. It can play the following roles: to ensure that the processing accuracy requirements are met stably and reliably; to shorten the processing time and improve labor productivity; to reduce production costs; to reduce the labor intensity of the operator ; It can be processed by operators with lower technical levels, but the clamping process of the supporting workpieces or parts has not made corresponding progress. With the implementation of various large-scale projects, the processing of large parts and parts as a whole , testing, moving, fixing and other clamping requirements are increasingly prominent, and the existing workpiece clamping methods are difficult to fully meet the requirements

[0003] For example, in the clamping of the entire large sheet-shaped workpiece, there are many common problems: such as inconvenient operation, poor flexibility, lack of safety, low efficiency, etc.; in the process of clamping, there are local protrusions on the surface of some large sheet-shaped workpieces The clamping method of the place may cause damage to the surface of the workpiece, or there may be uneven clamping force, and relative displacement between the clamping surface and the surface of the workpiece. At present, in the field of welding technology, most of the workpieces are processed by manipulators. For example, the Chinese patent CN203697022U discloses a delicate manipulator gripper, which drives the double-sided rack and rack to move through the cylinder, thereby driving the first gear assembly and the second gear assembly meshed with it to work, the first gear assembly and the second gear assembly The second gear assembly respectively drives the first movable rack and the second movable rack to move, so that the first clamping claw and the second clamping claw can clamp or put down the article;

But the structure of the device is complex and the cost is too high

Images