Large bar chamfering machine tool

Abstract

The invention discloses a large bar chamfering machine tool, comprising a bed body, a machine tool bedside box, a three-claw chuck and transverse guide rails, as well as a loading device, a lifting device, a bar propulsion device and an unloading device, wherein the machine tool bedside box is installed on the front end of the bed body; the three-claw chuck is installed on the machine tool bedside box; the transverse guide rails are installed on the bed body and located behind the machine tool bedside box; a tool tail seat is installed on the transverse guide rails; longitudinal guide rails are arranged on the tool tail seat; the loading device is used for conveying large bars; the lifting device is located ahead of the bed body; the bar propulsion device is arranged ahead of the lifting device as well; and the unloading device is located on the side of the bed body. With the adoption of the chamfering machine tool provided by the invention, the automatic loading and unloading of the large bars are realized, the production efficiency is improved, the labor intensity is decreased, and the safety performance is good; and in addition, the large bar chamfering machine tool is compact in structure, simple to operate, reliable to work and convenient to control, and can effectively adapt to the rapid clamping and processing of the bars with various diameters and lengths.

Description

technical field [0001] The invention relates to the technical field of stainless steel pipe production, in particular to a large bar chamfering machine tool. Background technique [0002] According to the production process of hot extruded steel pipe, after the round bar is cut into a certain length, it is necessary to carry out inner and outer chamfering and turning of the large bar with a diameter from 140mm to 340mm and a length from 300mm to 1200mm. It is an ordinary lathe, that is, a general-purpose machine tool on the market. Before processing, a crane is used to load the large bar into the machine tool, and then the three-jaw chuck is manually clamped in sequence, and then chamfering and other work are performed. Authorization announcement number CN 201815664 U, The Chinese utility model patent issued in the authorization announcement on May 4, 2011 discloses a horizontal double-sided car end face chamfering machine tool. The existing ordinary machine tool is used for...

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