Rigidity testing device of fixed type metal sheet stamping part

A testing device and metal sheet technology, applied in the direction of testing material hardness, etc., can solve the problems of no fixed metal sheet stamping rigidity testing device, inability to guarantee accuracy, non-standardization, scientific and other problems, to achieve compact structure and workability. Efficiency improvement, reasonable design effect

Inactive Publication Date: 2011-05-18
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Judging the stiffness of automobile panels in this way does not meet the requirements of standardization and scientificity, let alone guarantee the accuracy
At present, the research on the stiffness test of large sheet metal stamping parts is only limited to the anti-concave stiffness, and there is no fixed stiffness testing device for sheet metal stamping parts.

Method used

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  • Rigidity testing device of fixed type metal sheet stamping part
  • Rigidity testing device of fixed type metal sheet stamping part
  • Rigidity testing device of fixed type metal sheet stamping part

Examples

Experimental program
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Effect test

specific Embodiment approach 1

[0012] Specific implementation mode one: as Figure 1~3 As shown, the fixed sheet metal stamping parts rigidity testing device in this embodiment includes a frame 1, a first lead screw 2, a first screw nut 3, a first motor 4, a motor seat 5, a bracket 6, and two guide posts 7 , Two tee bushings 8, beam tube 9, second lead screw 10, second motor 11, second nut 12, guide rail 13, support slide 14, worm gear mechanism I, fine-tuning loading mechanism assembly II, A pressure sensor 15 and a pressure head 16, a first through hole 1-2-1 is opened on the beam 1-2 of the frame 1, and the first thread nut 3 is arranged in the first through hole 1 of the beam 1-2 - In 2-1, the upper part of the first lead screw 2 is screwed to the first screw nut 3, and the lower end of the first lead screw 2 passes through the second through hole 6-1 of the bracket 6 and connects with the first motor 4 The output shaft of the frame 1 is affixed, and the lower part of the bracket 6 is affixed to the fi...

specific Embodiment approach 2

[0017] Specific implementation mode two: as figure 1 As shown, the test device further includes an adjustment rod 41 , one end surface of the adjustment rod 41 is fixed on the outer surface of the beam tube 9 . With such a design, the rotation movement of the beam tube can be conveniently adjusted through the adjustment rod 41 . Other components and connections are the same as those in the first embodiment.

specific Embodiment approach 3

[0018] Specific implementation mode three: as figure 1 As shown, the test device also includes two travel switches 42, and the two travel switches 42 are installed on any one of the two columns 1-1 of the frame 1 along the vertical direction, and are located on any one of the columns. and between a guide post 7 adjacent to it. Designed in this way, the two travel switches 42 can limit the travel of the three-way bushing 8 on the guide post 7, so as to play a protective role. Other components and connections are the same as those in the second embodiment.

[0019] working principle:

[0020]Most of the automobile panels are large-scale curved sheet stamping parts. When testing the stiffness of the sheet metal stamping parts, the automobile panels are placed horizontally on the workbench, and the periphery of the automobile panels is fixed with clamps. In order to find the normal position of the center of the automobile panels, First, the rotation of the first motor 4 drives ...

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Abstract

The invention relates to a rigidity testing device of a fixed type metal sheet stamping part, relating to a rigidity testing device and solving the problem that no rigidity testing device of the fixed type metal sheet stamping part exists at present. One end of a second screw is fixedly connected with an output shaft of a second motor and parallelly arranged above a beam pipe; the lower end surface of a guide rail is fixed on the upper end surface of the beam pipe arranged below the second screw; a supporting sliding seat is arranged on the beam pipe and connected with the guide rail slilably; a second nut is arranged on the second screw and fixed on the upper end surface of the supporting sliding seat; the upper end surface of a worm and gear mechanism is fixed on the lower end surface of the supporting sliding seat; the upper end surface of a fine-adjustment loading mechanism assembly is fixed on a worm connecting seat of the worm and gear mechanism; the upper end of a pressure sensor is fixedly connected with the lower end surface of a guide rod of the fine-adjustment loading mechanism assembly; and a press head is fixed on the lower end surface of the pressure sensor. The invention can realize movement or rotation with multiple freedom degrees by the press head of the rigidity testing device and accurately measure the rigidity of the metal sheet stamping part.

Description

technical field [0001] The invention relates to a rigidity testing device for metal sheet stamping parts, in particular to a rigidity testing device for fixed automobile covering parts. Background technique [0002] Most of the automobile cover parts are large sheet metal stamping parts. The relative thickness of the sheet metal stamping parts, that is, the ratio of the plate thickness to the maximum outline size of the part is very small, and the stiffness of the sheet metal stamping parts is relatively poor. Therefore, the inspection of the automobile cover parts before leaving the factory Work is especially important. The scale of my country's auto industry is relatively large, but the foundation is relatively poor, especially the testing equipment is relatively backward. When domestic automobile manufacturers measure and compare the stiffness of panel panels, they generally rely on experienced professionals to press the panel panel with their hands to feel the force ap...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/42
Inventor 张晓辉邢忠文杨洪亮雷呈喜赵立红
Owner HARBIN INST OF TECH
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