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Survey meter for measuring symmetry degree of two sides of guide post key groove relative to axis of valve guide hole of cylinder cover

A valve guide and cylinder head technology, applied in the field of symmetry measurer between the axis of the valve guide hole of the cylinder head and the two sides of the keyway of the guide post, can solve the problems of complicated and difficult measurement process, and achieve convenient manufacture, product quality assurance and simple structure Effect

Inactive Publication Date: 2011-08-10
刘之增
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the reference gauge and general gauge are used for measurement, the measurement process is complicated and difficult

Method used

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  • Survey meter for measuring symmetry degree of two sides of guide post key groove relative to axis of valve guide hole of cylinder cover
  • Survey meter for measuring symmetry degree of two sides of guide post key groove relative to axis of valve guide hole of cylinder cover

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Embodiment Construction

[0011] The attached drawing is a structural diagram of the symmetry measurer for the cylinder head valve guide hole axis of the high-power 16v240 diesel engine to both sides of the keyway of the guide post. in the attached figure 1 , 2 Among them, the measuring instrument for the symmetry between the axis of the cylinder head valve guide hole and the two sides of the keyway of the guide post is to insert the dial indicator (7) into the hole of the measuring plate (1) with the split sleeve (11) and tighten the fastening screw (12) , the dial indicator (7) has a compression allowance of 0.5mm, tighten the T-shaped dial indicator head (6) into the screw hole of the measuring rod of the dial indicator (7); Insert in the valve guide (3) hole, insert the straight pin (8) in the valve guide (9) hole without clearance, and the axis of the valve guide hole simulated by the cylindrical pin outer circle is the reference. One side of the T-shaped dial indicator head (6) extends into the...

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Abstract

The invention discloses a survey meter for measuring the symmetry degree of the two sides of a guide post key groove relative to the axis of the valve guide hole of a cylinder cover. A dial indicator is inserted into a hole with an open cover on a gauging plate and is tightly fixed with a fastening screw; the dial indicator reserves a 0.5 mm compression allowance; a T-shaped dial indicator measuring head is tightly screwed in the screw hole of the measuring bar of the dial indicator; cylindrical pins are seamlessly inserted into the valve guide hole; the excircles of the cylindrical pins simulate the axis of the valve guide hole as a reference; one side of the T-shaped dial indicator measuring head extends into the guide post key groove and leans on the right side of the guide post key groove; the longitudinal surface of the gauging plate leans against the excircles of the two cylindrical pins, which are used as a reference; data is displayed as a after the dial indicator is compressed; the survey meter rotates for 180 degrees, and then the left side of the guide post key groove is measured with the same method; the data is displayed as b after the dial indicator is compressed; and the error data of the symmetry degree of the two sides of the guide post key groove relative to the axis of the valve guide hole of the cylinder cover is the difference of |a-b|. The survey meter has the advantages of convenient and quick measurement and accurate measured data.

Description

technical field [0001] The invention relates to a measuring device for the size of mechanical parts, in particular to a measuring device for measuring the symmetry between the axis of the valve guide hole of the cylinder head and the two sides of the keyway of the guide post. Background technique [0002] At present, on some mechanical components, the parts in each independent position have mutual required dimensions, such as the required dimensions for the symmetry between the axis of the cylinder head valve guide hole and the two sides of the keyway of the guide post. If the reference gauge and general gauge are used for measurement, the measurement process is complicated and difficult. Contents of the invention [0003] The invention provides a measuring device for the symmetry between the axis of the valve guide hole of the cylinder head and the two sides of the keyway of the guide column. By inserting the cylindrical pin in the hole of the valve guide without gap as t...

Claims

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Application Information

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IPC IPC(8): G01B5/02G01B5/252
Inventor 王恩凤刘之增
Owner 刘之增
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