Endurance fatigue test device for spring sheet

Abstract

The invention discloses an endurance fatigue test device for a spring sheet. The endurance fatigue test device comprises a substrate, an installation bracket, a pressing device and a control device, wherein the installation bracket is fixed on the substrate; an installation groove for installing a spring sheet is formed in the installation bracket; the pressing device is provided with a power structure and a pressure plate; the power structure drives the pressure plate to move, wherein the movement is reciprocating motion in a first direction and a second direction, the pressure plate props against the spring sheet in the first direction and moves far away from the spring sheet in the second direction, and the end point of the movement in the second direction is that the pressure plate is separated from the spring sheet; the control device is provided with a power supply and a processor; and one of a positive electrode and a negative electrode of the power supply communicates with the spring sheet and the other one end communicates with the pressure plate. Propping for the spring sheet is achieved through the pressure plate, the endurance fatigue is tested; the pressure plate moves to the end point in the second direction and is separated from the spring sheet, and then a circuit comprising the power supply, the pressure plate and the spring sheet is broken; and the circuit is conducted when the pressure plate props against the spring sheet in the first direction, and the processor can count according to conduction and breaking.

Description

technical field [0001] The invention relates to a workpiece experiment device, in particular to a shrapnel endurance fatigue test device. Background technique [0002] The fuel filler cap is mainly located on the side wall of the vehicle body, and it is a part that can be turned over and opened outside the filling port of the fuel tank of the car. Main functions: supplying fuel guns in and out, shielding the fuel tank filling port, with anti-theft function (there is no anti-theft function without the actuator); it is continuous with the outer panel surface of the side wall of the body, maintaining the integrity and beauty of the appearance of the side wall, Sometimes it also plays a decorative role. [0003] There are usually three opening methods: the mechanical type generally uses the opening handle to open the fuel filler cap by pulling the locking mechanism of the fuel filler cap; the electronic type mainly transmits the signal to the pop-up mechanism of the fuel filler...

AI Technical Summary

Problems solved by technology

[0006] At present, some domestic OEMs only inspect the pop-up structure of the fuel filler cap through the inspection tool to check the geometric size and appearance quality, or use the hardness tester to test the hardness of the shrapnel, but not the durability of the shrapnel. Experiments, so it is impossible to judge whether the shrapnel meets the design life requirements

Images