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PSD-based deep hole linearity measuring robot

A technology for measuring robot and straightness, applied in measuring devices, instruments, optical devices, etc., can solve the problems of inability to measure the straightness parameters of deep holes and blind holes, and achieve stability, easy disassembly and maintenance, and sliding support. Effect

Active Publication Date: 2017-07-14
NANJING COLLEGE OF INFORMATION TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the existing non-contact measurement method cannot measure the straightness parameters of deep holes and blind holes

Method used

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  • PSD-based deep hole linearity measuring robot
  • PSD-based deep hole linearity measuring robot
  • PSD-based deep hole linearity measuring robot

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Embodiment Construction

[0022] Such as Figure 1-7 As shown, the present invention discloses a deep hole straightness measurement robot based on PSD, which includes: a traveling mechanism 1 , a deep hole self-centering mechanism 2 , a laser measuring head 3 , a photoelectric processing system 4 and a PSD position adjustment mechanism 5 .

[0023] Wherein, the deep hole self-centering mechanism 2 includes a sleeve 13, an end cover 14, six supporting measuring rods, two conical round tables 18, a compression spring 22 and a centering shaft 21; the end cover 14 is sealed at the port of the sleeve 13; The centering shaft 21 penetrates through the sleeve 13 and the end cover 14 along the axial direction of the sleeve 13; two conical circular platforms 18 are sleeved on the centering shaft 21 through the installation hole at the center, and a centering shaft is provided in the installation hole. Balls 23; the cone bottoms of the two conical round platforms 18 are opposite, and the clip spring 22 is sleeved...

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Abstract

The invention provides a PSD-based deep hole linearity measuring robot, which comprises an advancing mechanism, a deep hole self-centering mechanism, a laser measuring head, a photoelectric processing system, and a PSD position adjusting mechanism. The deep hole self-centering mechanism comprises a sleeve, an end cap, six support measuring rods, two conical circular truncated cones, a press spring, and a centering shaft. The advancing mechanism is used for pushing the deep hole self-centering mechanism to advance along a deep hole. The laser measuring head is arranged on the other end of the centering shaft. The photoelectric processing system is used for acquiring laser signals of the laser measuring head. The PSD position adjusting mechanism is used for adjusting light receiving positions of the photoelectric processing system. A bidirectional symmetrically wedge-form elastic supporting mechanism is realized, ends of the support measuring rods are supported in a sliding manner, and the conical circular truncated cones are pushed to slide along the centering shaft when the support measuring rods shifts in a radial direction to adapt to changes of the aperture of the hole. Moreover, the central line of the hole and the central line of the centering shaft are always the same line so as to match linearity measuring of the deep hole or a blind hole.

Description

technical field [0001] The invention relates to an automatic detection device, in particular to a deep hole straightness measurement robot based on PSD. Background technique [0002] There are deep holes with different diameters in vehicles, airplanes, ships, petroleum equipment and large medical equipment. The processing and testing technology of these hole parts directly affects the accuracy of the deep hole parameters of the parts. Straightness measurement is a basic item in aperture geometric measurement, and is the basis of aperture roundness and coaxiality measurement, and is highly valued in production. [0003] The straightness error of deep hole refers to the deviation of the actual axis of the aperture from the ideal axis. At present, the traditional measurement methods of aperture straightness mainly include straightness plug gauge, snap gauge, arm method, inductive strain gauge and other methods. very big. Moreover, the test is even more inconvenient for deep...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/27
CPCG01B11/272Y02E30/30
Inventor 赵海峰郭燕林泳锴王国东舒平生段向军崔吉李金禹
Owner NANJING COLLEGE OF INFORMATION TECH
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