Control method and system for assisting servo motor driving through weighing and displacement sensor

A displacement sensor, load cell technology, applied in electrical program control, program control in sequence/logic controllers, etc., can solve the problems of inaccurate pressing force and displacement accuracy, and achieve the problem of inaccurate pressing force and displacement accuracy. Accurate, guaranteed repeat accuracy, safe and reliable equipment

Pending Publication Date: 2022-07-15
CHINA FIRST AUTOMOBILE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention solves the problem of inaccurate accuracy of the pressing force and displacement of the existing pressing equipment

Method used

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  • Control method and system for assisting servo motor driving through weighing and displacement sensor
  • Control method and system for assisting servo motor driving through weighing and displacement sensor
  • Control method and system for assisting servo motor driving through weighing and displacement sensor

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Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0041] Embodiment 1. A control method for assisting the drive of a servo motor by a weighing and displacement sensor described in this embodiment, refer to figure 1 This embodiment can be better understood, including the following steps:

[0042] Step S1, the control device determines the coding value according to the process design position of the pressing equipment, and the encoder of each position determines the coding value according to the feedback value of the micro-pulse displacement sensor;

[0043] Step S2, the frequency converter drives the servo motor according to the determined code value, the control device monitors the real-time position of the pressing equipment in real time through the micro-pulse displacement sensor, and starts the protection function when the real-time position exceeds a reasonable range;

[0044] Step S3, the control device monitors the pressure value of the pressing equipment in real time through the weighing sensor, and starts the protecti...

Embodiment approach 2

[0047] Embodiment 2. This embodiment is a further limitation of the control method described in Embodiment 1, which is driven by a weighing and displacement sensor assisted by a servo motor. In this embodiment, in step S1, the control The device is a PLC programmable controller.

Embodiment approach 3

[0048] Embodiment 3. This embodiment is a further limitation of the control method described in Embodiment 1, which is driven by a weighing and displacement sensor assisted by a servo motor. In this embodiment, in step S2, the reasonable The range is that the accuracy is greater than 0mm and less than or equal to 0.1mm.

[0049] In this embodiment, the micro-pulse displacement sensor is used for auxiliary control to ensure the accuracy and repeatability of the servo-driven pressing device in place.

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PUM

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Abstract

The invention discloses a control method and system for assisting servo motor driving through weighing and displacement sensors, and belongs to the technical field of electrical control. The method comprises the following steps that S1, a control device designs positions according to the process of pressing equipment, and encoders at all the positions determine encoding values according to feedback values of micro-pulse displacement sensors; s2, a frequency converter acts to drive a servo motor according to the determined coded value, a control device monitors the real-time position of the pressing equipment in real time through a micro-pulse displacement sensor, and a protection function is started when the real-time position exceeds a reasonable range; s3, the control device monitors the pressure value of the pressing equipment in real time through a weighing sensor, and when the pressure value exceeds a threshold value, a protection function is started; and S4, in the final pressing stage, after the pressing equipment reaches the final pressing position and the control device detects that the pressing equipment reaches the designed pressure value through the weighing sensor, a pressure maintaining program is started.

Description

technical field [0001] The invention relates to the technical field of electrical control, in particular to a control method and a system driven by a weighing and displacement sensor assisted by a servo motor. Background technique [0002] In the past, when a large number of customers had the demand for special pressing machines, they were often developed and manufactured abroad because there were no domestic manufacturers qualified to undertake them. Therefore, in order to fill the vacancy in the field of pressing equipment, a special machine pressing equipment has been developed, which can complete multiple flanging and achieve pressing, and solve the problem of the power source of the pressing process of the special pressing machine, but The load cell of the equipment cannot accurately feedback the condition of the pressing force at different positions of the control system. Therefore, the existing pressing equipment has the disadvantage that the precision value of the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/05
CPCG05B19/054G05B2219/1105
Inventor 刘飞飞沈明康广权林琼石秀娟姜博瀚
Owner CHINA FIRST AUTOMOBILE
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