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Special thin plate clamping device for manufacturing metal material indentations

A metal material and clamp technology, applied in the direction of analyzing materials, manufacturing tools, instruments, etc., can solve the problems of affecting the reliability of experimental measurement accuracy and data, and the instability of non-flat sheet workpiece samples, achieving simple structure and strong adaptability. , easy to use effect

Inactive Publication Date: 2019-05-10
上海出入境检验检疫局工业品与原材料检测技术中心 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the method of evaluating the surface mechanical properties of materials by using ball pressure technology is emerging. For the samples to be tested directly cut from thin-walled components, in order to ensure the accuracy of the load-depth relationship curve obtained during the indentation manufacturing process, for 1~ A sample with a thickness of 3 mm requires a convenient and applicable thin plate clamping device. At present, there are often phenomena in the laboratory that the samples of non-flat thin plate workpieces cannot be stabilized, which affects the accuracy of experimental measurement and the reliability of data. This has become an urgent technology to be solved. question

Method used

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  • Special thin plate clamping device for manufacturing metal material indentations
  • Special thin plate clamping device for manufacturing metal material indentations

Examples

Experimental program
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Effect test

Embodiment 1

[0019] In this example, see figure 1 and figure 2 , a metal material indentation manufacturing special thin plate clamp, including a base 1, an upper plate 2 and a wing nut 3, the upper plate 2 is provided with a groove 4, in the middle of the bottom of the groove 4 is provided with a circular The hollow structure makes the rest of the bottom of the groove located on the periphery of the circular hollow structure form a concave platform 5, and on the outside of the groove 4, round holes are symmetrically distributed around the groove 4, and the studs are fixed on the base 1, and the studs are connected from the top. Through the round hole around the groove 4 of the pressure plate 2, the wing nut 3 and the threaded part of the stud can be fastened and fastened. Two wing nuts 3 are set to form two connection point structures with the corresponding studs respectively. , so that the two wing nuts 3 are respectively located on both sides of the groove 4, a thin plate workpiece ca...

Embodiment 2

[0023] This embodiment is basically the same as Embodiment 1, especially in that:

[0024] In this embodiment, 4 wing nuts 3 are set to form 4 connection point structures with corresponding studs respectively, so that the two wing nuts 3 are respectively located on the left and right sides of the groove 4, and are connected at 4 points to enhance the connection. The stability of the clamping and fixing of thin plate workpieces. In this embodiment, the special thin plate clamp for indentation manufacturing of metal materials places the thin plate sample on the base 1, uses the concave platform 5 on the upper platen 2 to flatten and press the thin plate, and turns the butterfly nut 3 to fix the sample, so that the equipment The indenter conducts experiments on thin plate specimens through the circular hollow hole in the center of the upper platen to achieve the purpose of flattening and fixing the tested surface of the sample. , the experiment can be carried out smoothly, and t...

Embodiment 3

[0026] This embodiment is basically the same as the previous embodiment, and the special features are:

[0027] In this embodiment, four wing nuts 3 are set to form four connection point structures with the corresponding studs, so that the two wing nuts 3 are respectively located on the left and right sides and the front and rear sides of the groove 4, and through four points Connection to enhance the stability of clamping and fixing thin plate workpieces. In this embodiment, the special thin plate clamp for indentation manufacturing of metal materials places the thin plate sample on the base 1, uses the concave platform 5 on the upper platen 2 to flatten and press the thin plate, and turns the butterfly nut 3 to fix the sample, so that the equipment The indenter conducts experiments on thin plate specimens through the circular hollow hole in the center of the upper platen to achieve the purpose of flattening and fixing the tested surface of the sample. , the experiment can b...

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Abstract

The invention provides a special thin plate clamping device for manufacturing metal material indentations. The special thin plate clamping device comprises an upper pressing plate, a base and a butterfly nut, the upper pressing plate comprises a concave platform, a circular hollow portion is arranged at the middle of the concave platform, and two circular holes are formed in both sides of the upper pressing plate for fixing the butterfly nut; and the base is a thin plate, which is provided with two double-screw bolts on the both sides for fixing the butterfly nut. By screwing the butterfly nut, the upper pressing plate drops, an equipment pressing head passes through the circular hollow portion at the center of the concave table of the upper pressing plate to test a thin plate workpiece. The thin plate clamping device provided by the invention can fix the thin plate workpiece that has insufficient flatness and is not machined in advance, so that the thin plate workpiece does not generate unnecessary movement in the test, thereby improving the accuracy of an experimental result. The thin plate clamping device provided by the invention has the advantages of simple structure and convenient use, and can match with indentation manufacturing equipment to perform mechanical experimental measurement on the thin plate workpiece.

Description

technical field [0001] The invention relates to an experimental measurement device for physical properties of metal materials, in particular to a fixture, which belongs to the technical field of measurement of mechanical properties of thin-plate metal materials. Background technique [0002] Now when the laboratory conducts experiments to measure the surface hardness or mechanical properties of metal materials, it is often necessary to make spherical or conical indentations on the surface of the material. For the original thin plate with a thickness of 1-3 mm, if the flatness of the thin plate is not enough and has not been machined beforehand, it may be in order to maintain the original surface state or inconvenient to process, and the measurement result will be affected by the deformation of the plate when the pressure is applied. This requires that the sheet be flattened and compacted before the indentation is made. At present, the method of evaluating the surface mechan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/04B25B11/00
Inventor 吴益文陈怀宁初敏阚盈陈静汪宏斌
Owner 上海出入境检验检疫局工业品与原材料检测技术中心
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