A method for testing the strength of guide plate solder joints using a pressure testing machine

Abstract

The invention discloses a method of conducting strength detection on a guide plate welding spot with a pressure testing machine. The method includes the steps that firstly, a spot welding guide plate is clamped on a guide plate clamp, the welding spot, to be detected, on the spot welding guide plate is made to be located under a wedge-shaped press block and be over against a guide plate chain groove, and meanwhile a displacement sensor is installed on the spot welding guide plate; secondly, a servo motor drives the wedge-shaped press block to move downwards to press a wedge-shaped press head into the guide plate chain groove, and when pressure inducted by a pressure sensor reaches a set value, the servo motor stops rotating; thirdly, the servo motor drives the wedge-shaped press block to move upwards and recede from the guide plate chain groove, and meanwhile the displacement sensor automatically measures the residual deformation value of the guide plate chain groove; finally, the residual deformation value and a standard value are compared to judge whether the welding spot strength is qualified or not. The strength of the welding spot of the guide plate can be judged fast, and the quality of guide plates produced in batches can be tracked and monitored conveniently.

Description

[0001] The application of the present invention is a divisional application of the invention title "spot welding guide plate wedge pressure testing machine and strength detection method of guide plate welding spot". The application date of the original application is July 29, 2014, and the application number is 2014103644513. technical field [0002] The invention belongs to the technical field of chainsaw guide plate detection, and in particular relates to a method for using a pressure testing machine to detect the strength of the solder joints of the guide plate. Background technique [0003] Now widely used chainsaws usually adopt stacked guide plates, such as a stacked guide plate disclosed in a Chinese invention patent application with the publication number 102837335A, which consists of two side plates and a core plate connected in the middle of the two side plates. The high-quality medium carbon alloy steel plate is punched and formed, and then the overall heat treatme...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a method of using a pressure testing machine to detect the strength of the solder joints of the guide plate, which solves the technical problem that the detection operation of the solder joint strength of the guide plate is complicated, takes a long time, and is not suitable for tracking and monitoring the quality of the guide plate produced in batches

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