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Fatigue test device for car hood lock buckle

A fatigue test and engine cover technology, applied in the field of latch assembly, can solve the problems of high processing and installation precision requirements for four guide rods, easily damaged parts of the test device, and insufficient test efficiency, achieving a high degree of automation and convenient operation , the effect of simple structure

Inactive Publication Date: 2017-02-01
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method takes a long time to install the hood lock test piece, and requires high processing and installation precision for the four guide rods. The impact force is relatively large when the hood lock is released, and the test device components are easily damaged. not high enough

Method used

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  • Fatigue test device for car hood lock buckle
  • Fatigue test device for car hood lock buckle
  • Fatigue test device for car hood lock buckle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0014] like Figure 1 to Figure 4 As shown, a car engine hood lock fatigue test device includes a lock 1, a tooling bracket 2, a lower pressure plate 3, a bolt 4, a bolt 5, a latch 6, an oblique pressure plate 7, a bolt 8, a hinge support 9, Torsion compression spring 10, skeleton upper beam 11, skeleton lower beam 12, tooling base plate 13, tension cylinder 14, left frame column 15, unlocking cylinder 16, steel wire bundle 17, steel wire bundle 20, height adjustment block 21, tooling beam 18, Thrust unlocking cylinder 19, bolt hook 22, bearing pin 23, bolt 24, bolt 25, screw 26, bolt 27.

[0015] Insert the lock 1 of the hood lock of the car after assembly into the shaft pin hole of the tooling bracket 2 and fix it. The tooling bracket 2 and the lower pressure plate 3 are fixedly connected by bolts 4, and the lower pressure plate 3 is connected to the...

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Abstract

The invention relates to a car engine hood lock catch fatigue test device. The car engine hood lock catch fatigue test device comprises a tool support used for installing a lock catch of an engine hood of a car, and an inclined pressing plate used for fixing the lock catch of the engine hood of the car. One end of the inclined pressing plate is rotationally connected with a tool beam, a torsion compression spring is installed between the inclined pressing plate and the tool beam, and the other end of the inclined pressing plate is connected with a tension cylinder through a steel wire bundle to be used for a loading test on the lock catch and a spring lock assembly in a primary lock catch position. An unlocking mechanism of the lock catch is connected with an extension rod of an unlocking cylinder through a steel wire bundle, and the unlocking cylinder stretches out a cylinder rod to retract to pull back the unlocking mechanism of the lock catch for unlocking. A thrust unlocking cylinder is arranged below an unlocking lever mechanism of a spring lock, and an extension rod of the thrust unlocking cylinder moves upward to hit a lever of the unlocking mechanism of the spring lock to separate the lock catch from the matched spring lock assembly for unlocking. The car engine hood lock catch fatigue test device is high in automation degree, convenient to operate, reliable in action, simple in overall structure, small in investment and convenient to maintain and meets the requirements of the national detection standards of China.

Description

technical field [0001] The invention relates to an installation lock and matching latch assembly for a car hood lock buckle, which is a device for carrying out actual use state simulation fatigue tests on the lock buckle and the latch of the car hood cover lock buckle before leaving the factory. A test device, which can completely simulate the actual use state of the car hood cover lock to carry out the fatigue test, is safe and reliable, and meets the fatigue test standards stipulated by the company's products. Background technique [0002] The country has promulgated a series of standards for the installation lock of the car hood cover lock and the matching latch assembly in the production and use performance and product factory inspection. In order to meet the standards, the company must produce and assemble the car hood cover lock The inspection of neutralization products before leaving the factory has formulated corresponding requirements and indicators. One of them is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/00
Inventor 黄群陆保康黄彪张云龙
Owner SHANGHAI INST OF TECH
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