Online testing device for elastic force of bent elastic sheet

Abstract

The invention discloses an online testing device for elastic force of a bent elastic sheet. The device comprises a workbench (1), wherein an elastic sheet transfer device (2) and an elastic sheet elasticity testing device (3) are arranged on the workbench (1); the elastic sheet transfer device (2) comprises a stepping motor (4) and a speed reducer (5) which are fixedly arranged on the workbench (1); an output shaft of the stepping motor (4) is connected with an input shaft of the speed reducer (5) through a coupler; an output shaft is arranged at the top of the speed reducer (5), and a rotarydisc (6) is installed on the output shaft of the speed reducer (5); the elastic sheet elasticity testing device (3) comprises a base (11) and a lifting air cylinder (12); and a pressure applying air cylinder (14), a guide rail B (15) and an elasticity tester (16) which are vertically arranged are fixedly arranged on the left end surface of a sliding plate (13) in sequence from top to bottom. The device has the advantages that the structure is compact, the elastic sheet testing efficiency is improved, the testing precision is improved, and the operation is simple.

Description

technical field [0001] The invention relates to the technical field of testing elastic force of curved shrapnel, in particular to online testing equipment for elastic force of bent shrapnel. Background technique [0002] At present, as the size of electronic products becomes smaller and smaller, the corresponding parts used are also made smaller and smaller, and the most commonly used parts are curved shrapnel, such as figure 1 Shown is a schematic diagram of the structure of the curved shrapnel, which includes an arched portion (1) and through holes (34) respectively opened at both ends of the arched portion (33). The arched portion (33) is elastic, that is, when the arched portion is pressed (33) when the top, the arched part (33) will reset under the elastic restoring force. In the factory workshop, after the curved shrapnel is produced, it is necessary to do an elastic test on the arched part (33) to detect whether the elastic value of the shrapnel meets the requirement...

AI Technical Summary

Problems solved by technology

[0003] However, although this test method can test the elastic force of the bent shrapnel, it still has the following defects: 1. After the bent shrapnel is placed on the detection table, the position of the bent shrapnel needs to be adjusted many times to ensure that the two ends of the bent shrapnel are respectively in the applied position. Just below the piston rod of the press, so as to ensure that when the press is working, the active ends of the two piston rods are respectively pressed against the two ends of the curved shrapnel, and then the elastic force test is performed. This undoubtedly increases the positioning process. All tests require positioning, which undoubtedly reduces the test efficiency of curved shrapnel

2. The two piston rods of the press machine cannot be pressed on both ends of the curved shrapnel at the same time, that is, there is always one piston rod that moves first, and the other piston rod moves later, which will cause the arched part to be flattened and then move first. The piston rod continues to press on the end of the curved shrapnel, which leads to a larger elastic value in the actual test, so there is a defect of poor test accuracy

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