Automatic oil pipe conveying appliance

Abstract

The invention belongs to the technical field of mechanical process and relates to machine tool auxiliary equipment, in particular to an automatic oil pipe conveying appliance. The appliance comprises a walking beam device part, a center beam device part, a driving wheel device part, a driven wheel device part and a detecting device part; the five parts are combined to realize that parts with long pipes automatically churn, feed and discharge, enter at a high speed from the rear end of a main shaft of a machine tool when feeding, rapidly reduce the speed when approaching to a locating position and stop when a switch is triggered; the parts with long pipes withdraw from the main shaft of the machine tool at a high speed when discharging, and rapidly reduce the speed and stop when approaching to the churning position; and when rotating, a workpiece performs functions of rotation support, clamping roller floating compaction, blockage, and the like to the parts suspending out of the main shaft of the machine tool.

Description

technical field [0001] The invention relates to the technical field of mechanical processing, and belongs to auxiliary equipment of machine tools, in particular to an automatic delivery device for oil pipes. Background technique [0002] At present, the petroleum machinery industry generally uses CNC pipe thread lathes to process API oil and casing end threads, because the length of the pipe body (generally 4.88 meters to 12 meters) is far greater than the distance between the two chucks of the machine tool spindle (about 2 meters), so it is necessary to use auxiliary equipment to realize the automatic turning in and out of the pipe body by the machine tool, automatic feeding and discharging, high-speed entry into the main machine when feeding, and rapid deceleration when approaching the positioning device; Rapid deceleration, rotary support for the workpiece hanging out of the machine tool spindle, floating and pressing of the pressure roller, material blocking and other fu...

AI Technical Summary

Problems solved by technology

Some large-scale steel pipe manufacturing enterprises use imported lathes and auxiliary equipment. The auxiliary equipment is fully functional and can be adjusted automatically, with the highest efficiency, but the price is expensive, which is difficult for small and medium-sized enterprises to afford.

General enterprises use self-made simple feeders, which can only realize part of the above functions. The price is cheap, but the function is single, the control accuracy is not high, and it is difficult to ensure product accuracy and quality.

Small and medium-sized enterprises usually use the cylinder to pull the connecting rod to drive the sloping plate to stand up or lay flat to turn over the material. This way of turning over the material has discontinuous motion trajectory, unstable movement, loud noise, and easy bending and deformation of the pipe.

The feeding and discharging method adopts ordinary three-phase asynchronous motor to drive the V-shaped roller to drive the pipe fittings to feed or discharge after being decelerated by the reducer. Because the ordinary three-phase asynchronous motor cannot adjust the speed, the feeding and discharging can only be carried out at a fixed speed, and there is no high speed. The function of deceleration and positioning after approaching, the control method mostly adopts the simple and backward relay control method, the operator has high labor intensity, low efficiency and high failure rate

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