Pipe expanding device for bicycle handlebar production and use method thereof

Abstract

The invention discloses a pipe expanding device for bicycle handlebar production. The device comprises a base, and a cross frame mounted on the upper end of the base, a piston rod on the top of a hydraulic cylinder is connected with a lifting base, two ends of the lifting base are in sliding connection into the cross frame, the middle of the upper end of the lifting base is provided with a pipe expanding head, the two sides of the lower end of the cross frame are connected with an auxiliary protection device through an L-shaped connecting frame, the two sides of the lower end of the cross frame are connected with the L-shaped connecting frame through vertical polish rods, a fixed groove of the lower end of a fixed base is used for inserting of the upper end of a bicycle handlebar pipe fitting, the bottom of a vertical plate is connected with a striping device for being clamped on the outer side of the pipe expanding head, clamping and loading of the bicycle handlebar pipe fitting can be facilitated, the bicycle handlebar pipe fitting can be prevented from inclining, the vertical state of the bicycle handlebar pipe fitting is kept, the lower end of the bicycle handlebar pipe fittingis right located above the striping plate, under the effect of the stripping plate, the pipe expanding head can be smoothly separated from the interior of the lower end of the bicycle handlebar pipefitting.

Description

technical field [0001] The invention relates to the technical field of tube expansion devices, in particular to a tube expansion device used in the production of bicycle handlebars and a method for using the same. Background technique [0002] The handlebar is one of the necessary parts of the bicycle. It is generally made of pipe. The handlebar needs to be expanded during production and processing. The pipe fittings of the bicycle handlebars are enlarged, and then the pipe fittings are pulled out, and the diameter of the pipe fittings will be enlarged. At present, the pipe fittings are usually expanded by manually inserting the pipe fittings into the metal pipe, expanding the metal pipe, and then Pulling out the expansion head is labor-intensive and the production efficiency is low, and when pulling out the expansion rod, it is difficult to remove the expansion rod and the pipe fittings smoothly because the expansion rod and the pipe fitting are tightly socketed. A tube ex...

AI Technical Summary

Problems solved by technology

[0002] The handlebar is one of the necessary parts of the bicycle. It is generally made of pipe. The handlebar needs to be expanded during production and processing. The pipe fittings of the bicycle handlebars are enlarged, and then the pipe fittings are pulled out, and the diameter of the pipe fittings will be enlarged. At present, the pipe fittings are usually expanded by manually inserting the pipe fittings into the metal pipe, expanding the metal pipe, and then Pulling out the expansion head is labor-intensive and the production efficiency is low, and when pulling out the expansion rod, it is difficult to remove the expansion rod and the pipe fittings smoothly because the expansion rod and the pipe fitting are tightly socketed. Pipe expansion device for bicycle handlebar production and its application method

Images