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Insufficient-driving detection method for screw

A detection method and screw technology, applied in metal processing, metal processing equipment, manufacturing tools, etc., can solve the problems of low detection accuracy of floating locks, long occupation time, complex cost of detection mechanism, etc., and achieve short detection time and reduce complexity. , the effect of high detection accuracy

Active Publication Date: 2020-05-22
深圳市顶配自动化技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a floating lock detection method for screws to solve the technical problems of low floating lock detection accuracy, long occupation time, complex detection mechanism and high cost in the prior art

Method used

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  • Insufficient-driving detection method for screw
  • Insufficient-driving detection method for screw
  • Insufficient-driving detection method for screw

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Experimental program
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Effect test

Embodiment 1

[0042] The embodiment of the present invention also provides a method for detecting the floating lock of the screw, which detects the position during the process of obtaining the screw 10 and when the locking of the screw 10 is completed, without taking up production time.

[0043] Screw floating lock detection methods include:

[0044] Acquiring the screw 10: make the end of the positioning part lean against the positioning plane, and control the bit 2 to move along the first direction, so that the end of the bit 2 leans against the screw head;

[0045] Obtain the first distance between the bit 2 and the positioning component along the first direction at this time;

[0046] Locking screw 10: make the end of the positioning part lean against the locking plane, and control the bit 2 to move along the first direction to complete the locking of the screw 10;

[0047] Obtain the second distance between the bit 2 and the positioning component along the first direction when the loc...

Embodiment 2

[0068] For simplicity, only the differences between Embodiment 2 and Embodiment 1 are described. The difference is that the model information of the screw 10 and the pre-stored first distance corresponding to each model information are stored in advance; when the screw 10 is obtained, the model information of the screw 10 is obtained, and the corresponding pre-stored first distance is called; If the obtained first distance is not equal to the pre-stored first distance, an alarm device is triggered so that the problem can be dealt with in time. If the obtained first distance is equal to the pre-stored first distance, the next step can be performed.

[0069] When obtaining the screw 10, the first distance obtained is the distance between the groove bottom of the groove of the screw head and the bottom surface of the screw head. Since for each screw 10, the first distance is a fixed value, it can be measured and stored in advance. , so as to be used for comparison when obtaining...

Embodiment 3

[0072] For simplicity, only the differences between Embodiment 3 and Embodiment 1 are described. The difference is that if the difference between the second distance and the first distance is higher than a preset threshold, the alarm device is triggered.

[0073] When the second distance is greater than the first distance, only the screw floating lock can be judged, but the severity of the floating lock cannot be judged. If the screw floating lock is serious, the distance for the screw 10 to enter the threaded hole is relatively short, and the fastening effect cannot be achieved. At this time, timely processing must be carried out to prevent the quality of the product from being affected.

[0074] In this embodiment, the severity of the floating lock can be obtained through the magnitude of the difference between the second distance and the first distance. If the difference is equal to 0, there is no floating lock. If the difference is greater than 0 and lower than the preset...

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Abstract

The invention discloses an insufficient-driving detection method for a screw, and belongs to the technical field of screw driving. The insufficient-driving detection method for the screw comprises thesteps of screw obtaining and screw driving, wherein during the screw obtaining, the tail end of a location component is abutted against a location plane, a screw bit is controlled to move in a firstdirection, the tail end of the screw bit is abutted against a screw head, and a first distance between the screw bit and the location component in the first direction at this moment is obtained; during the screw driving, the tail end of the location component is abutted against a driving plane, the screw bit is controlled to move in the first direction to complete the screw driving, and a second distance between the screw bit and the location component in the first direction when the driving is completed is obtained; and if the second distance is greater than the first distance, insufficient-driving of the screw is determined. Insufficient-driving detection can be carried out through the change of relative positions between the screw bit and the location component, the detection complexityis lowered, the detection time is shorter, and the production efficiency is increased; and the error of a product does not influence the detection accuracy, and the detection accuracy is higher.

Description

technical field [0001] The invention relates to the technical field of screw locking, in particular to a method for detecting a floating lock of a screw. Background technique [0002] Screws are indispensable fastening parts in daily life and industrial production, and are widely used in electronic devices, hardware accessories, and automobile industries. In order to improve assembly efficiency, screw machines are often used to lock the screws. During the screw locking process, due to factors such as foreign objects or screw tilting and inaccurate alignment, the screw lock will have a floating lock phenomenon, and a lock detection is required. [0003] In the prior art, most of the detection methods used are photoelectric sensor detection. Due to the large installation and detection errors of the photoelectric sensor, the size of the screw head itself also has deviations, and the size of the product itself also has deviations. Detection accuracy is poor. In addition, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P19/06B23P19/00
CPCB23P19/06B23P19/00
Inventor 王浪杨林
Owner 深圳市顶配自动化技术有限公司
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