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Depth aperture internal diameter measurement device

A measuring device and technology of inner diameter, applied in the direction of mechanical diameter measurement, etc., can solve the problems of small measurement range and low efficiency, and achieve the effect of ensuring accuracy, accurate measurement, and avoiding intermediate transmission.

Active Publication Date: 2016-05-04
NANJING COLLEGE OF INFORMATION TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a deep hole inner diameter measuring device to solve the technical problems of deep hole measuring device positioning accuracy, low efficiency and small measuring range in the prior art

Method used

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Embodiment Construction

[0025] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0026] Such as Figure 1-3 As shown, a device for measuring the inner diameter of a deep hole includes a tapered block 1, a sleeve 2, three measuring rods, a spring 6, a push rod 7, a sleeve rod 8, a threaded sleeve rod 9, a three-jaw chuck 10 and an inner diameter hundred Sub-table 11. The conical body 1 is located in the sleeve 2, the ejector rod 7 is located on the axis of the conical block 1, one end of the ejector rod 7 is fixedly connected with the conical block 1, and the other end is connected with the inner diameter dial indicator 11; 8 sets of sleeve rods Set on the push rod 7, one end of the sleeve rod 8 is threadedly connected with the end of the sleeve 2, and the other end of the sleeve rod 8 is connected with the push rod 7 through a sliding bearing; the spring 6 is arranged in the sleeve 2, and the sleeve Set on the ejector rod ...

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Abstract

The invention discloses a depth aperture internal diameter measurement device, comprising a tapered block, a sleeve, three measurement rods, a spring, a push rod, a sleeve rod, a thread sleeve rod, a three-claw chuck and an internal diameter dial indicator. The conical surface of the tapered block is uniformly provided with three sliding grooves which are formed along the generatrix direction of the tapered block; the included angle between each sliding groove and the axis of the tapered block is 45 degree; the wall of the sleeve is provided with three through holes which are uniformly distributed along the circumference; three measurement rods pass through the through hole in the wall of the sleeve; and one end of the measurement rod is clamped inside a sliding groove. In the invention, the included angle between the sliding groove and the axis of the tapered block is 45 degrees and the displacement of the measurement rod along the radial direction is turned into an axial direction, which avoids the intermediate transfer between the levers in the traditional measurement, has more accurate measurement and can measure the maximum and minimum diameter of any cross section.

Description

technical field [0001] The invention belongs to a deep hole measuring device, in particular to a deep hole inner diameter measuring device. Background technique [0002] In modern industries such as airplanes, ships, and large-scale precision instruments, the processing and testing of shaft hole parts is always a major problem affecting production. The accuracy of the hole diameter, deep hole roundness, and straightness of such parts is an important factor to ensure product quality. factor. [0003] At present, the traditional inner diameter measurement method mainly uses calipers and calipers to measure the parts after processing. This kind of measurement method is inconvenient to operate, difficult to guarantee the accuracy, and has a large human influence factor. Moreover, the test is even more inconvenient for parts with deep or ultra-deep holes with a hole depth-to-aperture ratio greater than 5. Contents of the invention [0004] The object of the present invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B5/12
CPCG01B5/12
Inventor 郭燕赵海峰
Owner NANJING COLLEGE OF INFORMATION TECH
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