Mechanism for detecting forming accuracy of hot stamped part

A technology of precision detection and hot stamping, which is applied in the direction of measuring devices, instruments, and electrical devices, etc., can solve the problems of low efficiency and unsuitable for large-scale detection

Active Publication Date: 2011-11-23
ADVANCED MFG TECH CENT CHINA ACAD OF MASCH SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the detection step, when there are many measurement points, the efficiency is very low, and it is not suitable for large-scale detection

Method used

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  • Mechanism for detecting forming accuracy of hot stamped part
  • Mechanism for detecting forming accuracy of hot stamped part
  • Mechanism for detecting forming accuracy of hot stamped part

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0014] Measure the position degree of six specific points of a certain anti-collision beam forming part. The thickness of the part is 2.0mm, and the dimensional accuracy is required to be ±0.5mm. The opening degree of the measuring claw when it is closed is composed of the thickness and size requirements of the measuring part, that is, the opening degree Is 3.0mm, such as figure 1 Shown.

[0015] In the measurement circuit, the main switch adopts a self-locking switch with its own light, the self-check switch adopts an inching switch, and the indicator light adopts a light-emitting diode, such as Figure 4 Shown.

[0016] The detection mechanism is connected with the negative pole of the indicator light, and the measuring piece is connected with the negative pole of the power supply. When the measured piece is in contact with the measuring claw, the indicator light will light up, indicating that the accuracy of the measured piece is out of range.

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PUM

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Abstract

The invention discloses a mechanism for detecting the forming accuracy of a hot stamped part. The tensile strength of the hot stamped part is high, so that the high forming accuracy contributes to subsequent welding. When the position accuracy of certain key points on the hot stamped part is detected, the steps of positioning, clamping and measuring are needed; during measurement, the size deviation of a workpiece is detected by a plug gauge so as to judge whether the forming accuracy of the point meets the requirement or not; and when measurement points are more, the method is low in efficiency. The invention discloses a quick detection device suitable for detecting a certain measurement point on the stamped part. Two measurement jaws are used as standard rulers in the device, and the opening-closing state of a loop is measured so as to judge whether a formed part is qualified or not.

Description

Technical field [0001] The invention is used for measuring the position accuracy of the measuring point on the stamping part. Background technique [0002] The tensile strength of hot stamping parts can reach more than 1500MPa, and it has high safety when used on the car body. However, welding requires high precision of the formed parts. In order to check the forming accuracy of stamping products, special inspection tools need to be designed. The inspection process of the accuracy of hot stamping parts usually includes three links: positioning, clamping and inspection. The main steps are: for the positioning link, a standard part that fits the workpiece must be processed; for clamping, a quick clamp can be used; For detection, limit tools must be made first, and then gauges, calipers and other measuring tools are used to measure the distance between the workpiece and the limit tools. For the detection step, when there are many measurement points, the efficiency is very low and i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B7/00
Inventor 单忠德闫沁太姜超庄百亮刘萌戎文娟张振
Owner ADVANCED MFG TECH CENT CHINA ACAD OF MASCH SCI & TECH
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