Diameter measurement device and measurement method of inner groove

A technology of diameter measurement and inner diameter, applied in the field of machining, can solve the problems of insufficient range, insufficient precision, and difficult to complete, and achieve the effect of large contact area, stable measurement value, and error reduction.

Inactive Publication Date: 2020-01-07
JINCHENG NANJING ELECTROMECHANICAL HYDRAULIC PRESSURE ENG RES CENT AVIATION IND OF CHINA
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Problems solved by technology

[0002] At present, the diameter of the inner groove on the market is mainly measured by general methods, such as direct measurement by vernier calipers, inner diameter dial indicators, inner diameter dial gauges, inner calipers, calipers with meters, inner diameter dial indicators, and three-jaw inner diameter micrometers. However, according to the different structural sizes of the tested products, the general measurement method has the following deficiencies in applicability, such as the measurement accuracy and resolution

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  • Diameter measurement device and measurement method of inner groove
  • Diameter measurement device and measurement method of inner groove
  • Diameter measurement device and measurement method of inner groove

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[0024] Hereinafter, the present invention will be further described in detail through specific embodiments.

[0025] An inner groove diameter measuring device, which is characterized by comprising a reference gasket 03, a diameter detection instrument 01, and a measuring instrument probe 04; the reference gasket 03 has a tile-like structure, and the reference gasket 03 has at least two sections It is placed on the side wall of the inner groove of the tested part and can be closely attached to the side wall of the inner groove. The outer diameter is the same as the diameter of the inner groove of the part. The number of the reference spacer 03 is the same as that of the measuring claw of the measuring instrument probe 04 In the same quantity, the measuring instrument probe 04 is installed on the measuring end of the diameter detecting instrument 01, and the measuring instrument probe 04 is in contact with the reference gasket 03; preferably corresponding to the center point of the ...

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Abstract

The invention relates to a diameter measurement device and measurement method of an inner groove, and particularly to a diameter measurement device and measurement method of an inner groove with larger depth, higher size accuracy and a deeper position, and belongs to the technical field of machinery machining. According to the device and method, reference pad pieces are used to reduce the inner groove, and a diameter of the inner groove is further indirectly measured through a measurement instrument, thus the problem that the diameter cannot be measured due to that a measurement claw cannot bein contact with the measured inner groove is solved, and measurement instruments with different accuracy levels can realize diameter measurement of the inner groove with different accuracy. Further,the reference pad pieces of a multi-segment tile-shaped structure are used to be in contact with measurement heads of the measurement instrument, a contact area is large, a measurement value is stable, and measurement errors of different operators are reduced.

Description

technical field [0001] The invention relates to a measuring device and a measuring method for the diameter of an inner groove, in particular to a measuring device and a measuring method for the diameter of an inner groove with a relatively large depth, high dimensional accuracy and a relatively deep position, and belongs to the technical field of mechanical processing. Background technique [0002] At present, the diameter of the inner groove on the market is mainly measured by general methods, such as direct measurement by vernier calipers, inner diameter dial indicators, inner diameter dial gauges, inner calipers, calipers with meters, inner diameter dial indicators, and three-jaw inner diameter micrometers. However, according to the different structural sizes of the tested products, the general measurement method has the following deficiencies in applicability, such as the measurement accuracy and resolution of vernier calipers, inner diameter dial indicators, inner calipe...

Claims

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Application Information

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IPC IPC(8): G01B5/08G01B5/12
CPCG01B5/08G01B5/12
Inventor 吴清雨姚素娴
Owner JINCHENG NANJING ELECTROMECHANICAL HYDRAULIC PRESSURE ENG RES CENT AVIATION IND OF CHINA
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