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On-line quality control method and system for machining, and processing machine tool

A technology of mechanical processing and processing machine tools, which is applied in general control systems, control/adjustment systems, computer control, etc., can solve the problems of being unable to make adjustments and difficult to judge poor quality, so as to prevent batch failure and realize quality control. Effect

Active Publication Date: 2016-05-11
INTELLIGENT GRINDOCTOR TECH SHENZHEN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Through the quality inspection results after processing, it is also difficult to judge the cause of poor quality, and it is impossible to make timely adjustments

Method used

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  • On-line quality control method and system for machining, and processing machine tool
  • On-line quality control method and system for machining, and processing machine tool
  • On-line quality control method and system for machining, and processing machine tool

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Experimental program
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Embodiment Construction

[0039] In order to make the object, technical solution and advantages of the present invention clearer, the specific implementations of the machining online quality control and system and the processing machine tool of the present invention will be described below with reference to the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0040] There are many physical quantities that can reflect the machining process of the machine tool. The commonly used physical quantities include cutting force, spindle motor torque, spindle motor power, spindle motor current, vibration in the cutting area, sound in the cutting area, and temperature in the cutting area. The sensors corresponding to these physical quantities are force sensors, torque sensors, power sensors, current sensors, vibration sensors, acoustic emission sensors and temperature sensors. Due to the...

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Abstract

The invention discloses an on-line quality control method for machining. The on-line quality control method for machining includes the steps: acquiring the real time physical quantity during the machining process of a processing machine tool; and comparing the real time physical quantity with a preset range, and determining that a machined workpiece is abnormal in quality and controlling the processing machine tool to perform a first operation if the real time physical quantity exceeds the boundary of the preset range, wherein the first operation includes closing down the machine tool immediately, closing down the machine tool after finishing the current process, or keeping on machining and giving an alarm. The on-line quality control method for machining can timely discover the quality problem during the machining process and realize quality control during the production process, and can prevent occurrence of reject batch for the machined products. The invention also discloses an on-line quality control system for machining, and a processing machine tool.

Description

technical field [0001] The invention relates to the technical field of mechanical processing monitoring, in particular to an online quality control method and system for mechanical processing and a processing machine tool. Background technique [0002] In machining, the quality of the workpiece includes dimensional accuracy, shape tolerance and surface quality. Due to the limitation of the processing environment and the requirement of efficiency, the quality inspection in the past was carried out after processing, and it was a batch inspection. If the batch of workpieces is bad, it can only be reworked or scrapped in batches, which may cause great waste. [0003] There are many factors that cause poor quality of workpieces, including machine tools, workpiece materials, process parameters and the state of processing tools, etc. Changes in any of these factors may lead to quality problems. Through the quality inspection results after processing, it is also difficult to judge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/4063
CPCG05B19/4063G05B2219/31076
Inventor 王晋生
Owner INTELLIGENT GRINDOCTOR TECH SHENZHEN CO LTD
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