Simple mechanism for testing cycle indexes of springs of windscreen wipers

Abstract

The invention discloses a simple mechanism for testing cycle indexes of springs of windscreen wipers. The simple mechanism comprises a main frame, a motor, a big belt wheel, an eccentric shaft, a connection rod, a lower sliding block, a lower die, a spring, an upper die, an upper sliding block, guide pillars, a lead screw, a handle and a hand wheel, wherein the motor, the big belt wheel and the eccentric shaft are arranged on the main frame; a dividing ruler is arranged on the main frame; four guide pillars are arranged on the main frame; eight guide sleeves are arranged on the guide pillars;the excircles of the guide sleeves are respectively in interference fit with the upper sliding block and the lower sliding block; the upper sliding block can be adjusted through the lead screw; and through the upper sliding block, the scale on the main frame can be read. An operator takes a spring; one end of the spring is hung on the upper sliding block and the other end is hung on the lower sliding block; through adjusting the upper sliding block, the spring is pre-tightened; and when the upper sliding block is adjusted to a required scale, the motor can be started to carry out test, so thatthe operation is simple, the time and labor are saved, the depletion expense is low, and the spot check of batch springs is satisfied.

Description

technical field [0001] The invention relates to a testing tool for the performance of a tension spring, which belongs to the technical field of automobile manufacturing, in particular to a simple mechanism for testing the cycle times of the spring of an automobile wiper. Background technique [0002] At present, many automobile manufacturers at home and abroad, especially automobile wiper manufacturers, use a large number of tension springs. Under the background of a large number, the working performance of springs must be valued by the majority of automobile enterprises. In order to effectively control the performance of the spring, entrepreneurs spend a lot of money to purchase spring testing equipment. There are also special equipment for spring testing on the market, but the price is relatively expensive and the requirements for the skills of the operators are relatively high. Contents of the invention [0003] Aiming at the above-mentioned problems in the prior art, t...

AI Technical Summary

Problems solved by technology

In order to effectively control the performance of the spring, entrepreneurs spend a lot of money to purchase spring testing equipment. There are also special equipment for spring testing on the market, but the price is relatively expensive and the requirements for the operator's skills are relatively high.

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