An automatic positioning structure and method for the outer support of a gear hobbing machine

Abstract

The invention discloses an automatic positioning structure for a gear hobbing machine outer support and a method thereof. The positioning structure comprises a sliding plate, the outer support, an automatic positioning mechanism and an automatic locking mechanism. The automatic positioning mechanism comprises positioning convex blocks on the outer support and positioning concave blocks arranged on the sliding plate and matched with the positioning convex blocks in a wedged mode. The number of the positioning convex blocks is at least four, and the positioning convex blocks are distributed in a specific shape and can make the outer support be automatically positioned on the sliding plate in the horizontal direction and in the vertical direction. The number and the length of the positioning concave blocks correspond to those of the positioning convex blocks in a one-to-one mode. The automatic locking mechanism comprises a locker arranged on the outer support and a locking block arranged on the sliding plate and matched with the locker in a locked mode. According to the positioning structure, the wedged structure between the outer support and the sliding plate is used for positioning in a matching mode, automatic positioning of outer supports of the type can be achieved, and repeated positioning precision is also realized. The positioning structure has the advantages of being simple, easy to use, quick in operation, high in reliability and the like, labor intensity is greatly relieved, operation safety is improved, and a lot of operation time is saved.

Description

technical field [0001] The invention belongs to the technical field of gear hobbing machine components, and in particular relates to an automatic positioning structure and method for an outer support for a gear hobbing machine. Background technique [0002] The gear hobbing machine is the most widely used machine tool in gear hobbing machines. It can cut straight teeth, helical cylindrical gears, worm gears, sprockets, etc. on the gear hobbing machine. During its processing, the workpiece is often centered with a top mechanism, which is set on the outer bracket of the gear hobbing machine, and the outer bracket of the gear hobbing machine includes a closed outer bracket and an open and close outer bracket structure, of which the open and close outer bracket is mainly used in The large gear hobbing machine processes heavy and bulky shaft gears, so that the outer bracket does not interfere with the workpiece, and the workpiece is easy to load and unload, which improves the loa...

AI Technical Summary

Problems solved by technology

[0003] The opening and closing outer bracket of the traditional gear hobbing machine is a mechanical manual opening and closing structure, which is loosened by manual closing. In the closed state, the outer bracket is generally positioned by a plane and a pin and fixed by screws. The weight of the outer bracket is very heavy. The screws will be disassembled every time, and the outer bracket will be opened manually. The operation process is time-consuming and laborious, and the work efficiency is low.

In recent years, automatic opening and closing structures have also been adopted, but due to the fit gap between the outer bracket and its rotating shaft, after each outer bracket is opened and closed, the outer bracket and the center of rotation of the worktable will deviate, which will lead to gear processing errors; therefore The outer bracket needs to be adjusted manually after each opening and closing of the outer bracket, so there are problems such as low work efficiency, high labor intensity, and low repeat positioning accuracy

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