Pneumatic rear clamping disc for pipe cutting machine

Abstract

The invention provides a pneumatic rear clamping disc for a pipe cutting machine. The pneumatic rear clamping disc comprises a fixing base, a piston, an air cylinder, a fixing frame, a pushing block,a first clamping claw unit and a second clamping claw unit. The fixing frame is arranged on the top of the fixing base. An end plate is arranged on the top of the fixing frame. The piston is arrangedin the fixing base. The air cylinder is fixed in the piston. A pushing rod of the air cylinder penetrates through the fixing frame. The pushing block is arranged at the tail end of the pushing rod. The first clamping claw unit and the second clamping claw unit are symmetrically arranged on the end plate. The first clamping claw unit is connected with the piston. The second clamping claw unit is connected with the pushing block. According to the pneumatic rear clamping disc, the same air cylinder is adopted for driving the first clamping claw unit and the second clamping claw unit at the same time, the rear clamping disc is flexible in motion and easy to operate, meanwhile, by means of the simple mechanical structure and independent gas circuit design, the rear clamping disc is more compactin construction, clamping is more reliable, and the defects that due to the complex and large structure of the rear clamping disc, operation is troublesome, centering performance is poor, the rear clamping disc cannot penetrate through a cavity of a front clamping disc, and tail materials cannot be saved can be avoided.

Description

technical field [0001] The invention belongs to the technical field of machine tool fixtures, and in particular relates to a pneumatic rear chuck for a pipe cutting machine. Background technique [0002] Pneumatic chuck is one of the more commonly used chucks. It can be centered automatically and has high work efficiency when clamping workpieces. On existing pipe cutting machines, pneumatic chucks are often used for clamping. Pipe cutting machines usually use a pair of front and rear The chuck is used to clamp the material, the rear chuck plays the role of clamping, supporting, and forward feeding, and the front chuck is set in such a way that the pipe material can pass through the front chuck in order to save tailings. This clamping method The designed pneumatic chuck has a compact structure and saves tailings. [0003] However, the action of the existing rear chuck is inflexible and difficult to operate, and the structure of the rear chuck is not compact enough and the cl...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the above-mentioned problems in the prior art, and provide a pneumatic rear chuck for a pipe cutting machine, which uses a cylinder to simultaneously drive the first jaw unit and the second jaw unit, so that the rear chuck can move flexibly , easy to operate, and the simple mechanical structure and independent air circuit design make the structure of the rear chuck more compact and the clamping more reliable. Disadvantages such as the chuck passes through the front chuck cavity to save tailings, etc.

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