Method and device for measuring piston ring excircle configuration multiple parameters

A measuring device and measuring method technology, applied in the direction of measuring device, electromagnetic measuring device, electric/magnetic profile/curvature measurement, etc., can solve the problems affecting the quality assurance of piston rings, cannot be used in the production site, and the measuring device is expensive, etc. Achieve the effect of fast detection speed, high degree of automation and convenient operation

Inactive Publication Date: 2009-01-21
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most enterprises in China's domestic piston ring industry use relatively backward manual inspection methods. For example, ordinary cone rings are inspected on a universal tool microscope after being cut off from the axis, and barrel face rings and oil rings are inspected with lower precision. The detection device is used for measurement, and these methods are used to measure the outer circle of the piston ring. The disadvantages are that the detection accuracy and efficiency are low, and more importantly, the use of such inspection methods will change the processin

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0053] Embodiment 1 - multi-parameter measuring device for outer circle profile of piston ring

[0054] The measuring device for measuring and describing the multi-parameters of the outer circle profile of the piston ring provided by the present invention includes the measuring head clamped on the workbench 12 to be measured by the piston ring 9, and the measuring head is driven by its guide rail sleeve to move along the Z direction The air-floating guide rail 5 and the stepper motor 3 that drives the air-floating guide rail cover to move through the screw drive pair 2. The transmission connection between the screw drive and the air-floating guide rail cover adopts a point contact transmission connection, and the nut forming the screw drive pair is designed with an anti-rotation guide block 1 . The air flotation guide rail is a surface throttling gas static pressure air flotation guide rail with a movement accuracy of 0.1 μm. The measuring head is composed of a parallel leaf spr

Example Embodiment

[0055] Embodiment 2 - multi-parameter measurement method of piston ring outer circle profile

[0056] In this embodiment, the second type of tapered ring with a platform is used as the measurement object. The main parameters describing the outer circle profile of the piston ring are the outer circle slope α (bevel angle) of the ring, the straightness of the generatrix and the platform height h1, which are the parameters of the outer circle profile of the piston ring to be measured in this embodiment.

[0057] In this embodiment, the method for measuring the multi-parameters of the outer circular contour of the second type of tapered ring with a platform includes the following measurement steps:

[0058] (1) The second type of tapered ring with platform to be measured is clamped on the workbench of the piston ring outer circle profile multi-parameter measuring device provided in embodiment 1;

[0059] (2) The type of the piston ring to be tested - the second type of tapered ring

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PUM

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Abstract

The invention discloses a process for measuring the cylindrical outline multi-parameter of a piston ring and a device thereof. The basic content is that an anti-rotating nut in a precision lead screw driving pair is driven by a stepping motor under the control of a computer to drive an air-float guide rail sleeve to move up and down along the direction of a Z-shaft, a two-dimension scanning system with high precision is formed by a measuring head and an air-float guide rail with high precision for scanning and measuring the cylindrical outline of the piston ring clamped on a bench, wherein the measuring head is arranged on the air-float guide rail sleeve, and is formed by an electric eddy sensor and a canning knife-edge which is fixed on the supporting lower end of a parallel reed, and the computer timely displays detected data and the outline image of the detected piston ring which is amplified according to proportion on a screen, the stepping motor rapidly and reversely rotates after the set ring height value is scanned, and the air-float guide rail sleeve can automatically and rapidly return to the initial position under the gravity effect. The invention has the characteristics of high automation degree, many measuring parameters, high measuring precision, fast detecting speed, stable performance and convenient operation, etc.

Description

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Claims

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Application Information

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Owner SICHUAN UNIV
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