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An encoder zero position test method and tester

An encoder and tester technology, applied in instruments and other directions, can solve problems such as waste of funds, manpower, material resources, and inability to determine the zero position, and achieve the effects of low price, improved work efficiency, and reduced costs

Inactive Publication Date: 2016-05-18
北京万源多贝克包装印刷机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is often encountered that the zero position cannot be determined before the electrical system is not powered normally. Even after the system is powered on, when the zero position is determined, the installation angle must be readjusted mechanically.
In the future maintenance and mechanical zero offset, professional electrical technicians must be able to reposition the zero position of the machine, which will obviously bring a lot of inconvenience and waste of capital, manpower and material resources

Method used

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  • An encoder zero position test method and tester
  • An encoder zero position test method and tester
  • An encoder zero position test method and tester

Examples

Experimental program
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Effect test

Embodiment 1

[0022] This embodiment is a method for testing the zero position of an encoder. The system used in the method includes: a servo motor 8 installed on a mechanical device, a servo motor controller 4, a mechanical zero position sensor 3, and an incremental rotary encoder 7. Encoder zero position tester 6, adapter 5, such as figure 1 shown.

[0023] The mechanical equipment described in this embodiment can be various automatic control equipment using servo motors, such as printing presses, raw material processing machines, food processing machines, and the like. Under normal circumstances, these devices have a running starting point, or starting point, such as: a starting point of a box board of a die-cutting machine; a starting point of a printed sheet of a printing machine, and the positioning accuracy requirements of these devices are not very high . figure 1 What is shown is a schematic diagram of a printing machine controlled by a servo motor. In the figure, the printing ro...

Embodiment 2

[0040] This embodiment is the encoder zero position tester used in the method described in Embodiment 1. For the schematic block diagram, see figure 2 . The tester described in this embodiment includes: an input terminal connected to the signal end of an incremental rotary encoder, the input terminal connected to a trigger, the trigger connected to a preamplifier, and the preamplifier connected to The power amplifier is connected, and the power amplifier is connected with the indicator; the trigger, the preamplifier, the power amplifier, and the indicator are connected with the power supply, and the power supply is also connected with the power supply terminal of the incremental rotary encoder connect.

[0041] The principle of this embodiment is to input the Z signal of the incremental rotary encoder signal through the input terminal, use the Z signal to make the trigger generate a trigger signal stronger than the Z signal, and then amplify the trigger signal in two stages ...

Embodiment 3

[0045] This embodiment is an improvement of Embodiment 2, and it is to realize the circuit principle of the tester described in Embodiment 2. For the circuit schematic diagram, see image 3 . The trigger chip of the flip-flop described in this embodiment is DS8923AJ, the amplifier chip of the preamplifier is 74HC123, the amplifier tube of the power amplifier is ADC0816, the power chip of the power supply is LM317, and the instruction The lamp is one of incandescent lamps and LED lamps.

[0046] In this embodiment, a 9V battery is used for power supply, and after being stabilized, it becomes 5V to supply power to the encoder, and at the same time, it can provide its own chip power. The LM317 is one of the most widely used power integrated circuits. It not only has the simplest form of a fixed three-terminal voltage regulator circuit, but also has the characteristics of an adjustable output voltage. In addition, it also has the advantages of wide voltage regulation range, good...

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PUM

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Abstract

The invention relates to an encoder zero position testing method and instrument. The encoder zero position testing instrument comprises an input terminal connected with the signal end of an incremental rotary encoder, wherein the input terminal is connected with a trigger, the trigger is connected with a pre-amplifier, the pre-amplifier is connected with a power amplifier, and the power amplifier is connected with an indicator. The trigger, the pre-amplifier, the power amplifier and the indicator are connected with a power supply, and the power supply is further connected with a power supply terminal used for supplying power sources to the incremental rotary encoder. According to the encoder zero position testing method and instrument, zero position pulse signals of the incremental rotary encoder are manually detected in a simple triggering detection mode, the testing instrument is compact in structure and low in price, the whole testing and operating process is very simple, and even non-professional electric appliance technicians not knowing the principle can complete zero point positioning operation smoothly, and therefore working efficiency is improved and cost is reduced.

Description

technical field [0001] The present invention relates to an encoder zero testing method and tester, which is a method and equipment for electronic testing of electromechanical equipment, and a method and equipment for zero testing of mechanical automation equipment with servo control . Background technique [0002] The rotary encoder is a sensor specially used to detect the rotation angle of the servo motor. With the development of servo control, its application is one of the indispensable components for high-precision control. In servo control positioning motion, synchronous control, multi-axis In coordinated motion, the determination of the zero position is one of the most important tasks in the electromechanical installation process of the machine. The incremental encoder provides a certain number of pulses for each revolution of the servo motor shaft. Periodic measurements or pulse counts per unit of time can be used to measure the speed of movement. If the number of p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01D18/00
Inventor 李宗峰周红娟崔云涛李靖侯家毅张蕊
Owner 北京万源多贝克包装印刷机械有限公司