SU854681A1 - Method of automatic monitoring of tool integrity in the machine tools and numerically controlled machine tool linesections - Google Patents

Description

(54)

METHOD OF AUTOMATIC CONTROL OF TOOL GALT ON MACHINES AND PLOTS FROM CNC MACHINES

The invention relates to mechanical engineering and can be applied for roughing and semi-finishing machining on CNC machines using the control of blunting a tool outside the cutting process.

There is a method of automatically controlling the integrity of the tool, which consists in measuring the cutting forces comparing | Q, which allows, based on a comparison of the current values of the resultant components of the cutting force with a predetermined limit value, to interrupt the cutting process when the indicated value of the equivalent part is reached. cutting forces ilj.

The disadvantage of this method is that it is necessary to determine the value of the cutting force by means of calculation taking into account all the parameters of the cutting mode.

The purpose of the invention is to simplify and improve the accuracy of controlling the integrity of the instrument.

The goal is achieved by the fact that in the area of steady-state wear of the tool 5ent, the limiting value for each pass is determined in the process of

work on the right; proportional relationship between the tangential component and the depth of cut, for which the maximal increase in the depth of cutting along the aisle is set and the value of the tangential component of the cutting force is recorded at the beginning of the passage.

The application of the proposed method allows to increase the accuracy of monitoring the integrity of the tool.

 the invention

A method for automatically monitoring tool integrity on machines and areas from CNC machines using tool blunting control outside the cutting process, concludes in determining the allowable value of the tangential component of the cutting force corresponding to the tool, measuring the current cutting force of the tangential component of the cutting process and interrupting the processing when the current value exceeds the limit value in that.

3 8546814

with: the goal of increasing efficiency for-h: cutting depth of cut along the aisle and

shchft of elements of the AIDS system, will register at the beginning of the passage the value of the established wear and tear in-line tangential component of the force

from the rule / limit value for cutting.

of each pass is determined in the process of processing in direct proportion to the "Sources of information

The 4th relationship between tangential attitudes in the examination

component and depth of cut, 1. U.S. Patent 3,819,916

dL what set the maximum increase-cl. 235-151,11, published, 1974.

Claims (1)

5 claims A method for automatically monitoring the integrity of a tool on machines and sections from CNC machine tools using a Q Q control for tool dulling outside the cutting process, which consists in determining the permissible value of the tangential component of the cutting force corresponding to the trapping of the tool, measuring the current value of the tangential component of the cutting force in the cutting process and interruption of the processing process when the current value exceeds the limit □. characterized in that, with the aim of increasing the efficiency of protection of system elements AIDS, in the area of steady tool wear /, the limiting value for each pass is determined in the processing process by a direct proportional relationship between the tangential component and the cutting depth, for which the maximum increase in the cutting depth along the passage is set and the value of the tangential force component is recorded at the beginning of the passage cutting.