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Damage detection device and detection method

A technology for damage detection and detection modules, applied in the direction of measuring devices, testing wear resistance, instruments, etc., can solve problems such as unproposed solutions, achieve the effects of intelligent correction, ensure accuracy, and improve efficiency

Inactive Publication Date: 2019-10-18
广东金石建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] It can be seen that how to realize the intelligent detection of the damage of the grinding head, there are still many practical problems that need to be dealt with in practical applications, and no specific solutions have been proposed.

Method used

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  • Damage detection device and detection method

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Experimental program
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Effect test

Embodiment 1

[0031]This embodiment provides a damage detection device. According to the motor motion equation in the grinding head drive module, it is obtained that the electromagnetic torque output by the frequency converter can reflect the load torque of the grinding head drive module, and when the grinding head drive module When the grinding head of the load is damaged, such as cracks and damaged parts of the grinding head, the load torque of the grinding head drive module shows a larger periodic change than normal. At the same time, due to the damage of the grinding head, at the same input current Under normal circumstances, the distributed voltage of the grinding head drive module will also change due to the change of the load torque, and then the overall resistance value of the joint grinding head will change dynamically. Therefore, by detecting the resistance value reflecting the electromagnetic torque, it can be Determine whether the current operation of the grinding head drive modu...

Embodiment 2

[0043] This embodiment provides a damage detection device. According to the motor motion equation in the grinding head drive module, it is obtained that the electromagnetic torque output by the frequency converter can reflect the load torque of the grinding head drive module, and when the grinding head drive module When the grinding head of the load is damaged, such as cracks and damaged parts of the grinding head, the load torque of the grinding head drive module shows a larger periodic change than normal. At the same time, due to the damage of the grinding head, at the same input current Under normal circumstances, the distributed voltage of the grinding head drive module will also change due to the change of the load torque, and then the overall resistance value of the joint grinding head will change dynamically. Therefore, by detecting the resistance value reflecting the electromagnetic torque, it can be Determine whether the current operation of the grinding head drive mod...

Embodiment 3

[0057] This embodiment is basically the same as Embodiment 2, except that the acquisition module in the damage detection device further includes an environment detection unit and a normal wear compensation unit, wherein the environment detection unit is used to detect the ambient temperature information, and is used to correct the resistance value obtained by the acquisition module, so as to ensure the accuracy of the damage detection of the grinding head; the normal wear compensation unit is used to obtain the normal loss information, used to correct the resistance value obtained by the obtaining module according to the normal loss information.

[0058] In addition, the damage detection device also includes a memory and a processor, the memory is used to store one or more programs in a computer-readable storage medium, and the one or more programs include instructions, and when the instructions are executed by the computer The computer is made to execute the method for detect...

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Abstract

The invention provides a damage detection device; the damage detection device comprises a detection module, an acquisition module, a counting module and a judgment module, wherein the detection moduleis used for detecting whether a grinding head driving module is in an operation state or not; the acquisition module is used for acquiring a voltage signal and a current signal of the grinding head driving module in real time when the grinding head driving module is in the operation state, and calculating to obtain the resistance value of the grinding head in the rotating process; the counting module is used for receiving the resistance value calculated by the acquisition module and judging whether the resistance value falls into the preset resistance value region or not, if the resistance value of the grinding head driving module in each alternating current frequency period is within the preset resistance value interval, a counter 1 is performed; and the judgment module is used for judging whether the counting value reaches a preset numerical threshold value or not, and generating an evaluation report of damage to the grinding head when the counting value reaches the preset numericalvalue threshold value. According to the method, the grinding head cannot need to be checked manually, the checking efficiency is greatly improved, and meanwhile, a user can judge whether to replace the grinding head or not according to the generated evaluation report.

Description

technical field [0001] The invention relates to the field of grinding head detection, in particular to a damage detection device and a detection method. Background technique [0002] Grinding head is a general term for a small grinding tool with a handle. It is used in electric grinders, hanging grinders, and electric hand drills. The important functional parts in the process, if the grinding head is damaged or scrapped, the products in the grinding process will need to be reprocessed or the grinding process time will be extended, and in the modern process, when there is a problem with the grinding device , It often requires staff to check one by one, which is extremely time-consuming, thereby reducing the production efficiency of the production process. [0003] In addition, after a large number of searches, it was found that some typical prior art, such as patent CN107817186A, provides a detection system for accurately measuring mold wear, including a detection platform a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/56G01N3/02
CPCG01N3/02G01N3/56
Inventor 谢又开王山梁志华沈希文
Owner 广东金石建材有限公司
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