Collision locking method for numerical control machine tool

Abstract

The invention provides a collision locking method for a numerical control machine tool. The method comprises the following steps that: (1) when a collision condition occurs in the shaft moving processof the numerical control machine tool, and a controller program detects that a servo alarm is sent out in the shaft moving process or after the shaft moving process, the numerical control machine tool system is made to emergently stop, and a locking alarm prompt is sent out; (2) when the locking alarm prompt appears, system clock information is assigned to a register with a power-off memorizationfunction, so that a numerical value assigned to the register is changed along with the change of time when collision and locking occur each time, and collision occurrence time is recorded; and (3) alocking state is relieved, specifically, a locking relief password needs to be inputted, a locking alarm and emergency stop are relieved, and the functions of a program lock are effective. With the method adopted, the reason of machine collision can be easily analyzed; similar faults can be avoided next time; and the numerical control machine tool can play a role more effectively.

Description

technical field [0001] The invention relates to a method for colliding and locking a numerically controlled machine tool. Background technique [0002] Machine tool collision is generally due to improper operation or programming errors, etc., it is easy to cause the tool to hit the workpiece or the machine tool, the light one will damage the tool or the machined parts, and the severe one will damage the machine tool components, resulting in the reduction of the machining accuracy of the machine tool, etc. From the perspective of maintaining the stability of the machine tool, the collision between the tool and the machine tool or the workpiece is never allowed in the use of the CNC machine tool. [0003] After a serious collision accident in the current CNC machine tool, only the servo motor alarm is generated, and there is no machine locking function; after the collision, if the operator or on-site commissioning personnel, shut down and restart to eliminate the servo motor a...

AI Technical Summary

Problems solved by technology

[0002] Machine tool collision is generally due to improper operation or programming errors, etc., it is easy to cause the tool to hit the workpiece or the machine tool, the light one will damage the tool or the machined parts, and the severe one will damage the machine tool components, resulting in the reduction of the machining accuracy of the machine tool, etc. From the point of view of maintaining the stability of the machine tool, the tool is never allowed to collide with the machine tool or the workpiece during the use of the CNC machine tool

[0003] After a serious collision accident in the current CNC machine tool, only the servo motor alarm is generated, and there is no machine tool locking function; after the collision, if the operator or on-site commissioning personnel, shut down and restart to eliminate the servo motor alarm, and then resume the machine tool and continue processing or other operations In this way, the first scene of the collision will be completely destroyed. In addition, part of the operation data stored in the CNC system may also exceed the limit of the number of records due to the long-term operation of the user after the collision, and the operation data before the collision overwrite

When the customer repairs the machine tool, the machine tool parts are damaged due to the collision, and the machine tool manufacturer goes to the site for investigation. It is difficult to find out the cause of the failure, and it is easy to cause economic disputes between the manufacturer and the customer regarding machine tool maintenance.