Automatic tip repairing machine of fixed welding gun electrodes on welding line

Abstract

The invention discloses an automatic tip repairing machine of fixed welding gun electrodes on a welding line, which is characterized in that a rotary shaft is arranged on a bracket of a welding gun in a Z-shaped direction, and a rotating arm which rotates around the rotary shaft and can rotate in an XOY plane is arranged on the rotary shaft; an oscillating cylinder which forms a triangular support to the rotating arm is arranged between the bracket and the rotating arm; a tip repairing machine is fixedly arranged on the external side of the rotating arm through a tip repair machine backboard, and a rotating blade driven by a motor is arranged on the tip repairing machine; and the rotating arm driven by the oscillating cylinder has two state positions, one state position is the working position of the rotating blade on the tip repairing machine between the cathode and the anode of the welding gun, and the other one is an idle position for avoiding the interference formed by the tip repairing machine on the welding gun. In the invention, the oscillating cylinder substitutes a servo motor and high-precision speed reducer assemblies as an actuating mechanism, the stoke of the oscillating cylinder is set through a position sensor, and thus, working requirements can be well satisfied. The automatic tip repairing machine has simple and reliable principle, low cost, and easy operation and maintenance.

Description

technical field [0001] The invention relates to a welding torch dresser, more specifically a dresser for automatic grinding of electrodes of a welding torch fixed on a welding line. Background technique [0002] With the development of the automobile manufacturing industry, a large number of industrial robots have been introduced into the welding of body-in-white. Conventional industrial robot welding is performed by industrial robots carrying welding torches to weld the body-in-white. However, for some special stations, industrial robots need to be grasped by the gripper The workpiece is then welded on the plate on a stationary welding torch. After the welding is completed, the industrial robot sends the plate to the next station. Whether the robot carries the welding torch or uses a fixed welding torch to weld the body in white, when the welding torch has welded a certain number of welding spots, the upper and lower electrodes of the welding torch must be ground. In the ...

AI Technical Summary

Problems solved by technology

This method enables the automatic grinder to precisely grind the welding torch and improves labor efficiency. However, due to the use of expensive mechanisms such as servo motors and high-precision reducers, the cost of the entire equipment is greatly increased, and it is prone to failure and unsatisfactory. It is convenient for maintenance, and the turning mechanism requires a large movement space

[0006] The above two existing methods cannot well solve the contradiction between improving labor efficiency and reducing equipment cost

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