Welding machine for bicycle pipe frame forming

Abstract

The invention relates to the related technical field of pipe welding, discloses a welding machine for forming a bicycle pipe frame, and aims to solve the problem of inaccurate secondary positioning of the end part of a bicycle beam and a bicycle head bowl tube after grinding of an arc-shaped interface. The bicycle head bowl tube and a grinding head are arranged on a welding positioning base in parallel; arc-shaped connector grinding is conducted on the end portion of the vehicle cross beam pipe through a grinding head; afterwards, the arc-shaped connector at the end of the bicycle beam pipe is directly attached to the side portion of the bicycle head bowl pipe, gap welding between the bicycle head bowl pipe and the bicycle beam pipe is completed through a welding machine, and due to the fact that grinding and welding of the arc-shaped connector at the end of the bicycle beam pipe both adopt the same positioning reference, accuracy of connection between the bicycle beam pipe and the bicycle head bowl pipe is greatly guaranteed. Therefore, the problem that a welding seam gap is too large due to the fact that secondary positioning between the vehicle beam pipe and the vehicle head bowl pipe is not accurate is solved, and finally the effect that welding and fixing are conducted after the arc-shaped connector is ground during primary positioning is achieved.

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