Tappet bottom face height difference gauge

A technology of height difference and pillar bottom, which is applied in the field of project detection of the geometric characteristics of tappet products, can solve the problems of disputes in measurement results, difficulty in determining the reference plane, and high measurement costs, so as to avoid long measurement time, accurate measurement results, and solve problems. Build puzzle effects

Active Publication Date: 2014-02-26
GUANGXI YUCHAI MASCH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the low accuracy of the vernier caliper, when measuring the distance between the spherical arc surface and the edge at the bottom of the tappet, the measurement results are controversial
Using a profiler and a three-coordinate machine to measure, there will be difficulties in positioning and determining the reference plane, and the data repeatability is poor, the measurement time is too long, the efficiency is low, and the measurement cost is high
The existence of this contradiction is not conducive to the quality control of internal combustion engine tappet products

Method used

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  • Tappet bottom face height difference gauge
  • Tappet bottom face height difference gauge
  • Tappet bottom face height difference gauge

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Embodiment Construction

[0029] A specific embodiment of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiment. It should be understood that the "upper", "lower", "left", "right", "front" and "reverse" mentioned in the following embodiments of the present invention are all based on the directions shown in the figures, These words used to limit the direction are only for convenience of description, and do not mean to limit the specific technical solution of the present invention.

[0030] The structure of the tappet bottom surface height difference checker of the present invention is simple and reasonable, and the checker body with guide grooves and the table frame slider with two guide sides are designed to be used in pairs, which can ensure that the measuring head touches each time. The path is the same, which solves the problem of e...

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Abstract

The invention discloses a tappet bottom face height difference gauge. The gauge comprises a gauge body and a gauge stand slider. A guide groove and a tappet positioning hole are formed in the top face of the gauge body, and a tappet push-up assembly is distributed on the lower end opening of the tappet positioning hole and used for supporting and pushing up a tappet to be measured elastically from the bottom. A dial indicator head measurement groove and guide side faces are arranged at the bottom of the dial stand slider, a dial indicator mounting hole is formed in the vertical direction of the dial stand slider, a dial indicator is vertically inserted in the dial indicator mounting hole, the dial stand slider is arranged to be matched with the guide groove of the gauge body through the guide side faces at the bottom in a sliding mode, and thus the plane of the axis of the head of the dial indicator and the plane of the central plane of the axis of the tappet to be measured are the same. The gauge has the advantages that every time the measurement head is used for measurement, paths in contact with the measurement head are the same, measured data are good in repeatability, measurement results are more accurate, and measurement efficiency is high.

Description

technical field [0001] The invention relates to the field of detection of geometric characteristic items of tappet products in the manufacture of internal combustion engines, in particular to a height difference check tool for tappet bottom surfaces. Background technique [0002] For the inspection of the geometric characteristics of internal combustion engine tappet products, it is difficult to detect the height difference distance items at the bottom of the tappet, mainly because the bottom working surface of the tappet is a spherical surface, and it is difficult to establish measurement conditions. Usually use a vernier caliper (change the probe type if necessary) or use a profiler and a three-coordinate machine for measurement. Due to the low accuracy of the vernier caliper, the measurement results are controversial when measuring the distance between the spherical arc surface and the edge at the bottom of the tappet. When measuring with a profiler and a three-coordinat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B5/02
Inventor 梁振杰景建平宁钜声董基本
Owner GUANGXI YUCHAI MASCH CO LTD
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