Leaf spring pressure detecting device and detecting method thereof

Abstract

The invention provides a leaf spring pressure detecting device and a detecting method thereof. The device comprises a base, a fixing device, a measuring device, a positioning component and a side plate. A traditional detection method of using a dynamometer to detect is changed into a method of using an electronic scale to detect, for an output mode, a digital display electronic screen is used to display, the reading is visual, and the judgment is accurate. A bidirectional parting structure is used to carry out clamping fixation of a leaf spring, an elastic device is used by the clamping part to protect the leaf spring, the deformation of the leaf spring in loading and unloading processes can be avoided, and the loading and unloading efficiency can be effectively improved. For a part which limits sliding, a low resistance (almost no resistance) structure is used to carry out limit sliding to ensure accurate detection.

Description

technical field [0001] The invention relates to the field of pressure detection devices, in particular to a leaf spring pressure detection device and a detection method thereof. Background technique [0002] With the development of science and technology, the motor industry has higher and higher requirements for the electrical performance density, smaller volume requirements and lighter weight requirements of the motor. In order to meet the requirements of high electrical performance density, small size and weight Lightweight requirements, when designing the motor, the use of leaf spring structure has also become the best choice for miniature permanent magnet DC motors. [0003] As the key part of the miniature permanent magnet DC motor, the leaf spring is characterized by thinness and smallness. The auxiliary function is to support and fix the brush. The main function is that the effective contact area and strength between the brush and the commutator meet the design requir...

AI Technical Summary

Problems solved by technology

It can be seen that the pressure has a great influence on the performance of the motor. In order to ensure the performance of the motor, it is necessary to detect and control the pressure of the leaf spring. The traditional leaf spring pressure detection device is as the publication number: CN104266784A A kind of pin S piece on the textile machine The spring pressure detection tool and its detection method fix the leaf spring through the fixing part, and then press the leaf spring to a certain height through the pressing device, but because the deformation of each leaf spring is different during normal operation, the height of the pressing down cannot be determined. As a result, the leaf spring pressure measured by the device has a large error, and the efficiency is very low. During the loading and unloading process, the leaf spring is easily deformed by force, which is not suitable for mass testing. Leaf springs with excessive pressure were rejected, resulting in many leaf springs with excessive pressure being transferred to subsequent processes for processing, so that the performance of the motor equipped with leaf springs with excessive pressure was not up to standard when the whole machine was debugged, and it had to be replaced. The components of the leaf spring are scrapped, which will seriously affect the on-time delivery of products and cause huge economic losses to the company

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