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Height measurement control system of cutting machine and working process of height measurement control system

A control system and cutting machine technology, applied in metal processing and other directions, can solve the problems of no signal, dangerous economy, unstable signal, etc., and achieve the effect of preventing cutting of the worktable and the blade

Inactive Publication Date: 2013-08-14
JIANGSU JCA ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the resistance value of the blade is unstable, too large or too small, the signal fed back to the Z-direction controller will be unstable or even have no signal, which will easily cut the workbench and the blade, causing danger and economic loss

Method used

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  • Height measurement control system of cutting machine and working process of height measurement control system
  • Height measurement control system of cutting machine and working process of height measurement control system
  • Height measurement control system of cutting machine and working process of height measurement control system

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Embodiment Construction

[0015] The specific implementation manners of the present invention will be further described below in conjunction with the drawings and examples. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0016] The technical scheme of concrete implementation of the present invention is:

[0017] like figure 1 As shown, a cutting machine height measurement control system includes a blade 1, a workbench 2, an R / V conversion circuit 3, an A / D conversion circuit 4, a single-chip microcomputer control circuit 5 and a Z-direction controller 6; the R / V conversion circuit 3 includes two stages of inverse proportional operational amplifier circuits, each of which contains an operational amplifier; the voltage output terminal of the first stage inverting proportional operational amplifier circuit is connected to the voltage of the second stage inverting proportional...

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Abstract

The invention discloses a height measurement control system of a cutting machine. The height measurement control system comprises a blade, a workbench, an R / V (resistance / voltage) conversion circuit, an A / D (analog / digital) conversion circuit, a control circuit of a single chip microcomputer and a Z-direction controller. The invention further provides a working process of the height measurement control system of the cutting machine. The working process includes steps of 1), connecting the blade and the workbench into the R / V conversion circuit when the blade descends and is in contact with the workbench; and 2), converting the resistance of the blade into analog voltage signals by the aid of the R / V conversion circuit, converting the analog voltage signals into digital voltage signals by the aid of the A / D conversion circuit, transmitting the digital voltage signals to the single chip microcomputer, enabling the single chip microcomputer to judge whether the blade is in contact with the workbench or not according to change of the digital voltage signals so as to control the Z-direction controller to act. The height measurement control system and the working process have the advantages that the height of the blade can be accurately measured when the resistance of the blade is different, the height measurement control system can give an alarm when the resistance of the blade is abnormal, and accordingly the workbench and the blade are prevented from being cut.

Description

technical field [0001] The invention relates to a height measuring control system of a cutting machine, in particular to a circuit self-adaptation and detection system for cutting tools with different resistance values ​​when measuring height and its working process. Background technique [0002] The cutting machine is a key equipment for semiconductor post-packaging, and its function is to divide the device into individual circuit units. The working mechanism of the cutting machine is that the grinding wheel blade is driven by the spindle motor to rotate at high speed to generate cutting force to divide the device. The blade is usually composed of diamond and bonding agent inside. Depending on the material to be cut, the bonding agent material of different blades will be different, and the resistance value will also be different, generally ranging from 0-100K ohms. [0003] When the cutting machine measures the height of the blade, a Z-direction motor drives the blade to c...

Claims

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Application Information

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IPC IPC(8): B26D7/27
Inventor 杨云龙高阳高金龙
Owner JIANGSU JCA ELECTRONICS TECH CO LTD
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