Screw hole positioning and screw locking-and-dismounting device based on visual servo

A technology of screw hole positioning and visual servoing, which is applied in workpiece clamping devices, metal processing, metal processing equipment, etc., can solve the problems of difficulty in ensuring positioning accuracy, low positioning accuracy, and few positioning times, and achieves increased work. range, improved positioning accuracy, improved accuracy and efficiency

Active Publication Date: 2018-03-23
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

This method uses virtual instrument positioning technology, which has the disadvantage of low positioning accuracy compared with coordinate calibration technology, and the whole process of this method is only positioned twice, which are rough positioning and secondary positioning, and the number of positioning is too small to ensure positioning accuracy

Method used

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  • Screw hole positioning and screw locking-and-dismounting device based on visual servo
  • Screw hole positioning and screw locking-and-dismounting device based on visual servo
  • Screw hole positioning and screw locking-and-dismounting device based on visual servo

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Embodiment Construction

[0023] In order to make the purpose, technical solution and advantages of the present invention clearer, the embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0024] The present invention provides a screw hole positioning and locking and unloading screw device based on visual servoing, which is used for positioning screw holes and locking and unloading screws, such as figure 1 As shown, the screw hole positioning and screw locking and unloading device based on visual servoing includes a visual measurement module 20 and a control execution module 30. The control execution module 30 includes a robotic arm unit 31 and a computer 5. The visual measurement module 20 and The control execution modules 30 perform data transmission and communication through the network 40 .

[0025] Such as figure 2 The shown schematic diagram of the screw hole positioning and locking and unloading screw device based on visual servoi...

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Abstract

The invention relates to a screw hole positioning and screw locking-and-dismounting device based on visual servo and provides a point-to-face screw or screw hole positioning method. The screw hole positioning and screw locking-and-dismounting device is used for positioning a screw hole and locking and dismounting a screw and comprises a visual measuring module and a control executing module whichare in data transmission and communication with each other through a network. The visual measuring module comprises a binocular camera, a coarse positioning camera and a laser dotting device, and thecontrol executing module comprises a mechanical arm unit and a computer. The mechanical arm unit comprises a large-torque tightening gun, a mechanical arm small arm body, a mechanical arm large arm body, a mechanical arm control box, a base and a screw sleeve. The large-torque tightening gun, the screw sleeve, the binocular camera and the laser dotting device are located at the tail end of the mechanical arm unit. According to the screw hole positioning and screw locking-and-dismounting device based on visual servo, the positioning accuracy of the screw can be improved to a large extent, a mechanical arm is utilized as a moving carrier, thus the work range is increased, and screw locking and dismounting can also be conducted in the environment which workers inconveniently go to.

Description

technical field [0001] The invention relates to the technical field of mechanical assembly, in particular to a device for positioning screw holes and locking and removing screws based on visual servoing. Background technique [0002] In the process of mechanical equipment manufacturing, each component needs to be assembled, and the assembly process directly affects the efficiency of equipment manufacturing, and mounting screws is the most basic assembly process. The efficiency of screw assembly directly affects the efficiency of manufacturing. In addition, electronic products are now developing at a rapid pace, and the demand is also increasing, so mass production must be realized. On the assembly line of electronic products, there are also a lot of screws to be locked and unloaded. Some working environments are small in space, or there are strong magnetism, strong electricity and other working conditions that are not suitable for the staff, which will affect the efficiency...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P19/06B23P19/00B25B11/00
CPCB23P19/00B23P19/06B25B11/00
Inventor 袁艳刘勇曹卫华陈鑫刘振焘谭畅
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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