Carbide CNC insert tool life control form analysis

1. The need for tool life control

Tool life is an important measure of tool performance indicators, not only affects the processing efficiency of parts, but also for the quality of the product to the most important, for the production line, it is the key object of concern for quality control, the production line due to the unmanned intervention and the complexity of the tool type, in the use of the process, if you can't control the tool life in a timely manner, it will be batches of quality problems, or the equipment will occur in the event of a serious crash, so we must record the tool processing information in real time to track the use status of the tool has reached the blunt standard or broken tool, prompt replacement of the tool to ensure that machining standards. Therefore, it is necessary to record the processing information of the tool in real time, track the use of the tool status, online monitoring of the tool life, has reached the standard of blunt or broken tool, timely prompted the replacement of the tool, to ensure that the processing process, will not be caused by the tool parts quality problems.

2. The current situation of tool life control

Common forms of tool failure tool in the machining process, after a period of time, the loss of cutting ability, this phenomenon is called failure, the form of tool failure is mainly tool wear, breakage, poor tool quality. Tool wear is the cutting edge of the tool cutting for a period of time, the cutting ability to decline, can not meet the size and roughness requirements of the processed. For shell machining, tool wear is mainly manifested in that the size of the machined parts is unqualified, and the roughness of the machined surface can not meet the requirements of the drawings. Tool breakage is the tool wear to a certain extent, due to the cutting force and cutting temperature cyclic impact, the tool appears violent wear, cutting heat is sharply too high, the internal stress of the tool material sudden change, caused by the cutting edge and the cutting surface of the breakage.

Common manifestations are: chipping, flaking, cracking broken, broken, etc., this phenomenon will directly lead to the tool, parts scrapped, and even affect the machining accuracy of the equipment or cause greater economic losses, therefore, in the processing must focus on controlling the occurrence of this type of phenomenon. Poor tool quality refers to the tool manufacturers processed tools, the quality of its own can not meet the processing requirements, mainly in the cutting performance can not meet the requirements of the use of tool parameters do not meet the cutting requirements, easy to burn or fracture of the tool phenomenon, this tool in the daily use of the process, the operator will be based on the actual requirements of the site processing, in advance of the elimination of such tools are not used. By analyzing the form of tool failure, for poor quality tools, can be prevented in advance, not to use, but for the phenomenon of tool breakage and wear, is the object of attention of the production line tool life control.

Tool life control methods

At present, the operation of CNC equipment in the form of equipment as a unit, according to the production needs, the arrangement of different people for the operation of CNC machine tools, equipment used in the tool life control method is relatively backward.

Carbide CNC insert tool life control form mainly has the following aspects:

A. Judgement by virtue of the experience of processing workers, whether the tool life reaches the limit;.

B. Relying on the quality of the processed product to meet the requirements to determine whether the life of the tool is expired.

C. Part of the machine tool rely on the basic functions of the equipment to monitor the life of the tool use phase through the above analysis, at this stage, although the tool life has a certain control, but the method of control and the transmission of tool information has a certain delay and stage, can not be implemented to respond to the use of the tool condition, in addition to the exact value of the tool life for the accumulation of no data.