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Cylindrical auto part detection device

A technology of auto parts and detection devices, which is applied in the direction of measuring devices, optical devices, instruments, etc., can solve the problems of the difficulty of rotating circular workpieces with constant rotational torque and rotational speed, and the inability to measure the cylindricity of cylinders, etc. Simple and convenient, high precision, high measurement accuracy effect

Pending Publication Date: 2017-03-15
重庆寅悦恒工贸有限公司
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Problems solved by technology

In the actual measurement process, it is extremely difficult to rotate the circular workpiece by hand to achieve the requirements of constant rotational torque and rotational speed.
[0003] More importantly, most of the existing instruments can only measure the ellipticity of a single radial plane, and cannot measure the cylindricity of a cylinder. Therefore, there is an urgent need for a detection device that can measure both the ellipticity and cylindricity of a cylindrical workpiece

Method used

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  • Cylindrical auto part detection device
  • Cylindrical auto part detection device

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Embodiment Construction

[0014] The present invention will be described in further detail below by means of specific embodiments:

[0015] The reference signs in the accompanying drawings of the specification include: base 10 , workpiece 20 , detection unit 30 , protective cover 41 , notch 411 , mounting seat 42 , light source 43 , and driving mechanism 50 .

[0016] like figure 1 As shown, the cylindrical auto parts testing device includes, from left to right, a testing unit 30 , a base 10 , a light emitting unit and a driving mechanism 50 . The workpiece 20 to be measured is fixed on the base 10 so that the axes of the detection unit 30 , the workpiece 20 to be measured and the light emitting unit are located on the same horizontal line. The driving mechanism 50 adopts a hydraulic mechanism with stable transmission and high controllability. The driving mechanism 50 is connected to the light emitting unit for driving its movement.

[0017] like figure 1 and figure 2 As shown, the light emitting...

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Abstract

The patent application belongs to the field of roundness detection, and specifically discloses a cylindrical auto part detection device. The device comprises a base used for fixing a work piece. The device further comprises a detection unit, a light emitting unit, and a drive mechanism. The base is disposed between the detection unit and the light emitting unit. The light emitting unit includes a mount, a light source, and a light shield. The light source is mounted on the mount. The light shield covers the light source. The light shield is cylindrical, and the inner diameter of the light shield is greater than the diameter of a work piece to be detected. The mount and the light shield are provided with slots corresponding to the mount. The detection unit includes a controller and a plurality of photosensitive resistors. The photosensitive resistors are arranged closely to form a circle matching the light shield, and are electrically connected with the controller. The surface of the detection unit is provided with an indication line matching the work piece to be detected. Compared with the traditional cylindrical auto part detection device, the cylindrical auto part detection device of the invention can be used to measure the ovality and cylindricity of a work piece at the same time, is simple and convenient to operate, and has high precision.

Description

technical field [0001] The invention belongs to the field of roundness detection. Background technique [0002] With the rapid development of automobiles, the corresponding auto parts are also developing rapidly. Cylindrical workpieces are important parts of auto parts, and their precision has an extremely important impact on cars. Existing measuring instruments mainly include dial indicators, torsion spring comparators, and inductance meters, etc., which can measure the difference between the maximum diameter and the minimum diameter of a circular workpiece. The difference is called the diameter variation in a single radial plane. , commonly known as ellipticity. However, the process of using a measuring instrument is to rotate a circular workpiece by hand, requiring constant rotational torque and rotational speed. However, in the actual measurement process, it is extremely difficult to rotate the circular workpiece by hand to achieve the requirements of constant rotatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/24
CPCG01B11/2408
Inventor 马建伟
Owner 重庆寅悦恒工贸有限公司
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