Plastic welding gun elastic fixture with two-way error compensation function for automatic welding

Abstract

The invention relates to a plastic welding gun elastic fixture with a two-way error compensation function for automatic welding. The plastic welding gun elastic fixture mainly comprises an elastic hoop, a stud shaft, a rotating spring disc, an inclined surface connecting block, a compression spring, a spring adjusting nut, a translational adjusting nut, a compression spring rod, a translational adjusting rod, an upper connecting plate, a lower connecting plate, a translational sliding guide rail, a sliding block, a multi-hole installation plate, an installation base, a guide wheel rod and an oval-shaped bead guide wheel. According to the elastic fixture provided by the invention, a mode of adjusting the pose of a welding gun by a human arm is adopted, a polar coordinate system elastic error compensation manner is adopted, and a welding gun clamping device which is capable of rotating and being translationally and elastically adjusted and comprises an oval-shaped bead guide wheel is designed, so that the two-way error compensation of a plastic weld seam is realized and the plastic welding efficiency is improved under the drive of a servo motion device as long as the welding gun is clamped and certain pretightening force is applied at an initial pose.

Description

technical field [0001] The invention relates to a welding torch installation fixture, more specifically a device for automatic welding with spring preload and elliptical bead guide wheels for clamping plastic welding torches, which can be compensated by elastic sliding in two directions Position error of plastic welds. Background technique [0002] Automatic welding technology has been widely used in the field of metal welding, and has played an important role in improving product quality and work efficiency, such as automotive welding robots. With the promotion and use of plastic workpieces, there are more and more plastic welding tasks. For example, in the process of washing tanks commonly used in the electroplating industry, a large number of plastic weld seam welding tasks are required. Since the rigidity of the plastic material is much lower than that of metal, and the processing size consistency of the plastic workpiece is poor, the deformation is serious, the toleran...

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Problems solved by technology

[0008] The purpose of the present invention is to solve the problem of low dimensional accuracy of the seam to be welded in plastic welding, which is difficult to apply to automatic welding, and at the same time overcome the defects of low efficiency and poor precision of artificial plastic welding, imitate the posture adjustment mode of the human arm to the welding torch, and adopt In the polar coordinate system mode, the rotation and translation elastic adjustment and the welding torch clamping device with elliptical bead guide wheels are designed. As long as the welding torch is clamped and a certain pre-tightening force is applied at the initial position, the servo motion device can Driven by the drive, the error compensation and automatic welding of plastic welds are realized

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