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Terminal pulling-out force detecting method

A detection method and pull-off force technology, which are applied in special data processing applications, instruments, electrical and digital data processing, etc., can solve the problems of increasing detection costs and heavy workload, and achieve the effects of reducing inspection costs and frequency.

Active Publication Date: 2015-06-24
曼德汽车零部件(泰州)有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This inspection method needs to collect a large number of samples for the pull-off force test, not only the workload is heavy, but also the direct detection of the pull-off force is a destructive test, which greatly increases the testing cost

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Embodiment Construction

[0040] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0041] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0042] In order to illustrate the rationality of this method, the source of variation affecting the pull-off force is firstly identified through C&E and DOE methods. For general sources of variation, through the control of suppliers, raw materials, equipment, etc., they are controlled under specified conditions, so as to eliminate the impact on pull-off force. For the main source of variation, it is necessary to conduct in-depth research through methods such as SPC and regression analysis to find the relationship between pull-off force and crimping height, and establish a mathematical model to determine the optimal crimping height.

[0043] Now take FDHF-8E terminal crimping 20mm2 wire ...

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Abstract

The invention provides a terminal pulling-out force detecting method. The method comprises the steps that firstly, the regression analysis method is adopted to find the relation between the terminal pulling-out force and the pressure welding height according to the specific situation of a terminal and a wire; secondly, the value range of the pressure welding height is determined according to the specific requirement of the terminal pulling-out force; finally, the terminal pulling-out force is controlled by monitoring the terminal pressure welding height. The optimal pressure welding height value is determined according to the relation between the terminal pulling-out force and the pressure welding height, the pulling-out force is controlled by monitoring the terminal pressure welding height, the detecting mode is changed into non-destructive testing from destructive testing, the head, middle and tail piece detecting mode is changed into the head and tail piece detecting mode, and accordingly the detecting frequency and the detecting cost are reduced.

Description

technical field [0001] The invention relates to the technical field of wire connection, in particular to a method for detecting pull-off force of an automobile wire harness terminal. Background technique [0002] The terminal is an important part of the automobile wiring harness. It is connected between wires and wires, wires and electrical appliances, and plays the role of transmitting current and signals. The terminal and the wire are generally connected by crimping. The quality of the crimping directly affects the reliability of the connection, and the pull-off force is an important parameter to measure the quality of the crimping. At present, wire harness manufacturers generally use the first, middle and last inspection methods to monitor the terminal pull-off force. This inspection method needs to collect a large number of samples for the pull-off force test, which not only has a large workload, but also directly detects the pull-off force as a destructive test, which...

Claims

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Application Information

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IPC IPC(8): G06F17/50
Inventor 陈朋高虹李艳邸士强刘青华王国辉陈振宇李强
Owner 曼德汽车零部件(泰州)有限公司
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