System for detecting fracture splitting notch of connecting rod of automobile based on machine vision

Abstract

The invention discloses a system for detecting a fracture splitting notch of a connecting rod of an automobile based on machine vision, which intends to overcome the problem that the connecting rod with the facture cracking trough not processed is cracked. The system comprises a computer, a programmable logic controller, an output success indicator light, an output failure indicator light, an output alarming light, a relay, a light source controller, a No. 1 camera, a light source, a photoelectric switch, a No. 2 camera and a power supply, wherein the No. 1 camera is connected with the computer through a camera line; the No. 2 camera is connected with the No. 1 camera through the camera line; the computer is connected with the programmable logic controller by a communication line; the light source is connected with the light source controller by a wire; the photoelectric switch is connected with a first input port I 0.0 of the programmable logic controller by the wire; the relay is connected with the light source controller by the wire; the programmable logic controller is connected with the power supply by the wire; and control pins of the output success indicator light, the output failure indicator light, the output alarming light and the relay are sequentially connected with the output ports Q 0.0, Q 0.1, Q 0.2 and Q 0.3 of the programmable logic controller by the wires.

Description

technical field [0001] The invention relates to a detection device for mechanical parts, more precisely, the invention relates to a detection system for cracking grooves of automobile connecting rods based on machine vision. Background technique [0002] Since the automobile connecting rod cracking technology developed and matured in the developed countries of the automobile industry in the 1990s, it has gradually replaced the traditional connecting rod processing technology and has become an important symbol of the development level of a country's engine connecting rod manufacturing industry. [0003] The connecting rod cracking processing technology mainly has three core processes: processing the initial cracking groove of the big head hole of the connecting rod; the process of applying radial force, cracking the connecting rod and the precise reset of the rod cover; and the bolting process with a fixed torque. The automatic production process and equipment of each process...

AI Technical Summary

Problems solved by technology

At present, almost all production workshops use artificial naked eye recognition, but due to factors such as workshop light, metallic luster of connecting rods, human visual fatigue and other factors, the accuracy of manual recognition is very low

Therefore, some connecting rods with unprocessed cracking tanks are often cracked, resulting in cracking failure of connecting rods, which not only seriously reduces the success rate of cracking, but also causes a lot of economic losses.

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