- Changchun Rongde Optics
- Co.,Ltd.
- Add：No.1666 Yaan Road,
- North Lake Development District,
- Changchun 130102,China
- Tel：86-431-81881745
- Fax：86-0431-85256892
- E-mail：rongdecui@roundss.net
- Skype：adacui_roundss
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Linear scale application in closed loop of nc wedm ！
Changchun Rongde Optics Co.,Ltd. Release time：2016/7/7 Browse：681Linear scale application in closed loop of nc wedm
In present online cutting machine when the system sends a feeding instructions, the drive circuit of power amplifier, a drive motor rotation Angle, then through the gear speed reducer drive screw rotation, through the screw nut institutions into a linear displacement of machine tool. Each axis machine tool movement speed and displacement by losing the pulse frequency and pulse number. This machine is a one-way flow of information, namely after the issue of the feed pulse actual movement value no longer feedback. System of machine tool to monitor the actual displacement is not can't for error correction. Therefore, stepper motor out of step, step Angle error, transmission error of gear and screw will affect the precision of machining parts. In order to advance the precision of the machine tool, using the linear motor and position detecting element composition of the closed loop system. It removes the rotary motor gear clearance error, reduce the inertia of the system, and improve the dynamic performance of the system. Electrical no accurate positioning, depends on the position feedback is accurate, grating feet high precision, low price, good performance, it become the preferred sensors, so as to realize the feedback position signal.Grating ruler signal output frequency is very high, such as read directly to industrial control, to guarantee the real time using industrial computer can achieve high performance, but need a lot of program. Design grating ruler interface module, can realize signal subdivision, argue to the position of computing and display. Module is independent, PC when need data, can be read directly by the data bus. Not only ensure real-time performance of the control system, advances the response speed of the system. Using grating ruler resolution of 1 mu m.
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