Method of Adaptive Feed Cutting in Machining Center

Abstract

The invention relates to a machining-center self-adaptive feeding cutting method, and belongs to the technical field of machining centers. A high-precision rotary encoder is arranged on a main shaft motor of a machine tool, a PLC is embedded in a numerical control system, the feed moving speed of the machine tool is set by a processing program, and the feeding rate value is automatically changed through PLC program control and algorithms. Fluctuation data of the rotating speed of a main shaft in the machining process can be monitored in real time through the numerical control system; the PLC can be used for writing a PLC program to read the fluctuation data of the rotating speed of the main shaft in real time, the standard value of the feeding rate is set to be 100% during machining, the fluctuation limit value of the rotating speed of the main shaft is set to be A, when the fluctuation value exceeds fluctuation limit value A, the feeding rate is automatically decreased to the set value B, and after the set time C, the feeding rate is automatically stepped back to the standard value. The machining-center self-adaptive feeding cutting method has the advantages that the operation stability is good, the cutter service life is long, and the machining efficiency is high. The self-adaptive cutting of machine-tool high-speed feeding during low-load cutting and machine-tool low-speed feeding during high-load cutting is achieved.

Description

technical field [0001] The invention relates to the technical field of machining centers, in particular to a method for adaptive feed cutting of a machining center. Background technique [0002] The machining center is the most important equipment on the flexible processing production line. At present, a large number of horizontal machining centers are used in many production lines, such as the production line of automobile engine block and cylinder head. But the reliability level of many horizontal machining centers is still relatively low. The low level of reliability of horizontal machining centers will directly affect the production efficiency of users of horizontal machining centers. [0003] Machining centers will go through three stages from design to scrap: design, manufacture and assembly, and use. Most of the measures to improve the reliability level of horizontal machining centers are mainly concentrated in the manufacturing and assembly stages. However, if at...

AI Technical Summary

Problems solved by technology

[0005] The invention mainly solves the problems of large cutting vibration, short tool life and low machining efficiency in the prior art, and provides a method for adaptive feed cutting of a machining center, which has the advantages of good running stability, long tool life and Advantages of high processing efficiency

Solve the problem of machine tool vibration in heavy cutting process