Rivet quality grading and automatic sorting system and method

An automatic sorting system and rivet technology, applied in sorting and other directions, can solve the problems of no rating and screening process, single type of rivet, low detection efficiency, etc., to reduce the impact of external light, hardware cost and structural complexity, measurement high precision effect

Active Publication Date: 2019-01-18
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention is: the type of rivet detection is very single, the detection efficiency is not high, the accuracy is limited, and there is n

Method used

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  • Rivet quality grading and automatic sorting system and method
  • Rivet quality grading and automatic sorting system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] This embodiment provides a rivet quality rating and automatic sorting system, including a material delivery device 1, a detection device 2, a screening device 3 and an automatic control unit; the material delivery device 1 is used to deliver rivets 5 to the detection device, and Output the rivet 5 after the detection to the screening device 3; the detection device 2 includes a clamping mechanism 21 and an information collection mechanism 22, the clamping mechanism 21 includes a pneumatic finger 210 and a pneumatic turntable 211, and the two free ends of the pneumatic finger 210 are A first gripping plate 212 and a second gripping plate 213 are respectively provided on the first finger, and the pneumatic finger 210 controls the first gripping plate 212 and the second gripping plate 213 to open or close together for the rivet 5;

[0068] The pneumatic finger 210 is connected to the pneumatic turntable 211, specifically, the pneumatic finger 210 is connected to the pneumati...

Embodiment 2

[0077] Further improvement on the basis of Embodiment 1, the material conveying device 1 includes a vibrating plate 11 and a conveyor belt 12, the output end of the vibrating plate 11 is connected to the input end of the conveyor belt 12, the conveyor belt 12 is located below the pneumatic finger 210, and the conveyor belt 12 Used to transport rivets 5. The conveyor belt 12 is provided with a photoelectric switch 13 near the side of the pneumatic finger 210, and the photoelectric switch 13 is used to detect the position of the rivet 5 on the conveyor belt 12, and transmits the detection information to the PLC controller, and the PLC controller according to the detection information The clamping mechanism 21 is controlled to complete the clamping action.

Embodiment 3

[0079] Further improvement on the basis of Embodiment 2, the first grasping plate 212 and the electronic ruler 220 of the pull rod are fixed on one of the finger ends of the pneumatic finger 210 through the first connecting bar 214, specifically, the electronic ruler 220 of the pull rod passes through the base 228 and The L-shaped bracket 229 is fixed on the first connecting bar 214; the second grasping plate 213 and the distance measuring plate 222 are fixed on the other finger end of the pneumatic finger 1 by the second connecting bar 215; the first connecting bar 214 and the second connecting bar 215 are C-shaped structure. The information collection mechanism 22 also includes a square light source 223 and a ring light source 224, the square light source 223, the ring light source 224 and the camera 221 are sequentially arranged on a straight line; when the camera 221 takes pictures to collect graphic information, the rivet 5 is located on the straight line . The informati...

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Abstract

The invention discloses a rivet quality grading and automatic sorting system. The rivet quality grading and automatic sorting system comprises a material conveying device, a detection device, a screening device and an automatic control unit, wherein the material conveying device is used for conveying rivets to the detection device and outputting the detected rivets to the screening device; the detection device comprises a clamping mechanism and an information acquisition mechanism; after the rivets are clamped, a pull rod electronic scale is used for measuring the diameter of a rivet rod and acamera is used for acquiring images of the rivets; an industrial personal computer is used for driving quality grades of the rivets according to the diameter of the rivet rod and an image processingtechnology, recording a quality grade division result and transmitting the quality grade division result to the screening device; the screening device comprises a sorting groove and a sorting barrel,rotating the sorting groove according to the quality grade division result of the rivets and conveying the rivets into the sorting barrel with the corresponding grade. According to the rivet quality grading and automatic sorting system disclosed by the invention, the detection precision can be effectively improved by adopting the pull rod electronic scale and the image processing technology, and different evaluation standards can be selected to finish quality grading and automatic sorting of various types of the rivets; the working efficiency is relatively high.

Description

technical field [0001] The invention relates to the technical field of parts automatic detection, in particular to a rivet quality rating and automatic sorting system and method. Background technique [0002] A rivet is a standard fastener used for cold joining of parts. It is widely used in aviation, railway, ship and other equipment. If the rivets in the equipment loosen or break due to quality problems, the connected parts will be loosened, resulting in serious accidents. Therefore, the quality of the rivets is directly related to the performance and safety of the equipment. The quality of rivets is reflected in two aspects of size and surface defects. figure 1 Shown is a common countersunk head rivet. The size of the rivet mainly includes the taper angle of the countersunk head, the outer diameter of the top surface, the thickness of the head, the length of the rivet, and the diameter of the rivet shaft. Among them, since the rivet rod is in contact with the connecte...

Claims

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Application Information

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IPC IPC(8): B07C5/02B07C5/06B07C5/342B07C5/36
Inventor 罗建桥欧阳熊鹰李柏林
Owner SOUTHWEST JIAOTONG UNIV
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