Three-head helix milling machine

Abstract

The present invention discloses one kind of triple-thread screw miller, which includes one Z-direction skid platform capable of sliding in Z direction under the drive of the Z-direction drive unit; three milling heads with milling cutter on the Z-direction skid platform and capable of sliding separately in X1, X2 and X3 directions under the drive of the motor; one rotating spindle holding the workpiece; and one tail stock supporting the tail end of the workpiece and rotating with the spindle. The triple-thread screw miller machines the three spiral grooves of triple-thread screw rod or pipe simultaneously and has the advantages of high work efficiency, suitability to batch production, high machining quality and improved production environment.

Description

technical field [0001] The invention relates to a machine tool, especially a milling machine, in particular to a machine tool for simultaneous milling of trisecting spiral grooves of metal tube and rod parts. Background technique [0002] Among mechanical parts, there are some pipe and rod parts that need to mill spiral grooves on their outer circular surfaces. For example, the drill collar used in oil drilling, a drill collar is ten meters long, and three equal diversion grooves are milled on the outer surface of the drill collar. Usually, a well is five kilometers to eight kilometers deep, and the demand for drill collars can be imagined. so big. In order to meet the processing requirements of such parts, domestic manufacturers generally adopt the transformation of ordinary large-scale lathes. A milling power head is placed on the carriage of the lathe. During milling, the main shaft rotates, the carriage moves longitudinally, and the milling head cuts to form spiral groo...

AI Technical Summary

Problems solved by technology

In order to meet the processing requirements of such parts, domestic manufacturers generally adopt the transformation of ordinary large-scale lathes. A milling power head is placed on the carriage of the lathe. During milling, the main shaft rotates, the carriage moves longitudinally, and the milling head cuts to form spiral groove milling. , only one spiral groove can be processed at a time, and the efficiency is very low. It takes 1.5 hours to process one spiral groove, and it takes 4.5 hours to complete the milling of three spiral grooves on a drill collar.

Due to the poor equipment, the vibration is large during processing, which seriously affects the product quality and tool loss, and the milling chips are scattered everywhere, and the operator is often burned and scratched. At the same time, manual operation is labor-intensive.

In short, the use of this crude equipment, the quality of the processed products is poor, the efficiency is low, the environment is harsh, the tool loss is large, and the labor intensity is high.

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