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A kind of inner diameter measuring head of pneumatic measuring instrument and its manufacturing method

A technology of pneumatic measuring instruments and measuring heads, which is applied in the direction of measuring devices, instruments, and fluid devices, etc., which can solve the problems of affecting measurement accuracy, low dimensional accuracy, and short service life of the measuring head, and achieve high measurement accuracy and high dimensional accuracy , The effect of short manufacturing cycle

Active Publication Date: 2016-01-20
ZHENJIANG DONGYI MACHINERY
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The hardness of the inner diameter measuring head of the existing pneumatic measuring instrument made of GCr15 bearing steel is HRC60-62 degrees, the service life of the measuring head is short, the exhaust groove is formed by milling, the dimensional accuracy is low, and the measurement accuracy is affected

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  • A kind of inner diameter measuring head of pneumatic measuring instrument and its manufacturing method

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Embodiment Construction

[0029] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0030] see figure 1 , the inner diameter measuring head of the pneumatic measuring instrument of the present invention is composed of a measuring head 1 and a measuring head fixed head 2, the measuring head 1 is made of YG15 hard alloy material, and the measuring head 1 is provided with an exhaust groove 4 formed by grinding, The measuring head 1 is bonded on the measuring head fixed head 2 with glue.

[0031] The specific operation steps of the manufacturing method of the inner diameter measuring head of the pneumatic measuring instrument are as follows:

[0032] 1. Rough machining of the probe: Carry out wire cutting on the YG15 hard alloy blank to process the inner hole 3 to the required size, and then use the cut hard alloy inner hole 3 on the cylindrical grinder to position and grind the outer circle of the hard alloy blank to the required size. Accord...

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Abstract

The invention discloses a pneumatic measuring instrument inner diameter measuring head and a manufacturing method thereof. The measuring head is composed of a measuring head body and a measuring head body fixing head. The measuring head body is made of a YG15 hard alloy material. Air discharging ducts on the measuring head body are formed in a grinding machining mode, and the measuring head body is bonded to the measuring head body fixing head in a gluing mode. The pneumatic measuring instrument inner diameter measuring head is high in measuring accuracy and stable in measuring head use performance. The service life is greatly prolonged.

Description

technical field [0001] The invention relates to the technical field, in particular to an inner diameter measuring head of a pneumatic measuring instrument and a manufacturing method thereof. Background technique [0002] The inner diameter measuring head for pneumatic measuring instruments is a high-precision inner hole size measuring tool. As a measuring tool, the dimensional accuracy and wear resistance of the inner hole measuring head are of great significance to the use of the measuring tool. [0003] At present, the conventional pneumatic inner hole measuring head is made of GCr15 bearing steel, and its manufacturing process is as follows: [0004] 1. Roughly turn the inner hole of the blank of the measuring head on the lathe; [0005] 2. Mill four exhaust grooves on the blank of the measuring head, and then use a drilling machine to drill small holes for measuring on the blank of the measuring head, and leave a finishing allowance; [0006] 3. Quenching the measuring...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B13/10
Inventor 陈立军
Owner ZHENJIANG DONGYI MACHINERY