Wiper power transmission assembly scratch angle and tooth gap detection device and method

Abstract

The invention relates to a wiper power transmission assembly scratch angle and tooth gap detection device and method; the detection device comprises a base plate, a first rotary unit and a second rotary unit; the first and second rotary units are respectively fixed on the base plate; the first rotary unit comprises a first motor with encoder feedbacks and a fixed device; the fixed device is used for relatively fixing a power output shaft of the wiper power transmission assembly and the rotary shaft of the first motor with encoder feedbacks; the second rotary unit comprises a second motor with encoder feedbacks and a rotary plate; the second motor rotary shaft is fixed with the central shaft of the rotary plate; the rotary plate is also provided with an eccentric shaft; the eccentric shaft is used for fixing the power input connecting hole of the bull gear of the wiper power transmission assembly. The detection device and method are high in detection precision, can use the motor rotation direction reversion and motor feedback signals to detect the scratch angle and scratch angle tooth gaps, thus alarming and counting unqualified products; the wiper power transmission assembly scratch angle and tooth gap detection device is easy to use.

Description

technical field [0001] The invention relates to a detection device and method for auto parts, in particular to a detection device and method for a scraping angle and backlash of a wiper power transmission assembly. Background technique [0002] At present, there is no relevant testing equipment to detect the gear meshing gap of the wiper transmission component. The detection of the wiper angle is generally measured by a pointer dial, which is a mechanical measurement. Its pointer rotates at different angles according to the different scraping angles of the wiper. The problems with this method are: first, the accuracy of the dial can only reach 1°, which cannot meet the accuracy requirements of some wiper angles (such as θ±1.2°); It is easy to cause bad products to flow out. Specifically, the prior art has the following problems: 1. The detection efficiency of scratch angle and backlash is not high enough, and the judgment of defective products is not intuitive enough. 2. ...

AI Technical Summary

Problems solved by technology

The problems with this method are: first, the accuracy of the dial can only reach 1°, which cannot meet the accuracy requirements of some wiper angles (such as θ±1.2°); Related, it is easy to lead to the outflow of bad products

Specifically, the prior art has the following problems: 1. The detection efficiency of scratch angle and backlash is not high enough, and the judgment of unqualified products is not intuitive enough

2. There is no error-proof function for unqualified products with scratch angles

3. Manual compression is used to tighten the arm seat of the scraper arm, and it is easy to get tired after long-term operation

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