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Detection device and detection method for location degree of threaded hole of air feeding/exhausting face of engine cylinder cover

A technology of engine cylinder head and detection device, which is applied in the direction of mechanical measuring device, measuring device, mechanical device, etc., can solve the problems such as large deviation of threaded hole position, position deviation of intake and exhaust manifold, failure to ensure installation requirements, etc. Achieve the effects of improving detection accuracy, avoiding cumulative errors, and simple structure

Active Publication Date: 2012-09-19
WUHU YONGYU AUTOCAR INDAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in the machining of the cylinder head of the automobile engine, there are many threaded holes on the intake and exhaust surfaces, and various errors during processing will cause a large deviation in the position of the individual threaded holes, resulting in the assembly of the intake and exhaust manifolds on the cylinder head. The accuracy is too low, and even some screws cannot be installed
The traditional detection of the threaded hole position on the top surface of the cylinder head only detects the position of a single threaded hole at a time. Not only is the detection efficiency low, but it is also prone to large cumulative errors, and it is impossible to guarantee whether the cumulative errors generated by the detection meet the installation requirements. The existence of errors will cause a large position deviation of the intake and exhaust manifolds installed on both sides of the cylinder head, so how to reduce the generation of this cumulative error is a big problem

Method used

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  • Detection device and detection method for location degree of threaded hole of air feeding/exhausting face of engine cylinder cover
  • Detection device and detection method for location degree of threaded hole of air feeding/exhausting face of engine cylinder cover
  • Detection device and detection method for location degree of threaded hole of air feeding/exhausting face of engine cylinder cover

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Embodiment 1

[0016] Such as figure 1 As shown, the positioning mechanism of the detection device includes a positioning pin 2 and a positioning pin 3 arranged on the bottom plate 1. The bottom surface of the cylinder head 9 is placed on the positioning pin 2. There are three positioning pins 2, of which there are two limiting pins. Positioning pins 2 are distributed at two corners of one side of the cylinder head 9, and another position limiting pin 2 is located at the middle of the opposite side of the cylinder head 9, with stable positioning. The top surface of the position limiting pin 2 is Plane, and the flatness is very small, through the design of the limit pin 2, a stable support for the cylinder head 9 is formed to improve the detection accuracy. In addition, a hole matching the positioning pin 3 is selected on the bottom surface of the cylinder head 9, and there are two positioning pins 3, one of which is a cylindrical pin and the other is a diamond pin. The positioning method of ...

Embodiment 2

[0018] Such as figure 1 and figure 2 As shown, the intake manifold threaded hole detection panel 4 and the exhaust manifold threaded hole detection panel 7 of the detection device are fixed by the rib plate 5 connected thereto, and the rib plate 5 is fastened on the base plate 1 by screws 6, each The panels are respectively fixed by a rib plate 5 at both ends thereof, so as to ensure the stability of each panel and improve detection accuracy. The technical content of this embodiment is applicable to any detection device with any structure described above.

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Abstract

The invention discloses a detection device and a detection method for a location degree of a threaded hole of an air feeding / exhausting face of an engine cylinder cover. The detection device comprises a thread plug gauge and panels, wherein each panel is provided with a detection hole; and two panels respectively correspond to an air feeding face and an air exhausting face of the cylinder cover. The detection device further comprises a bottom plate for placing the cylinder cover and a positioning mechanism which is arranged on the bottom plate and is used for positioning the cylinder cover, wherein the panels are arranged on the bottom plate and are respectively located at two sides of the cylinder cover; the quantity of the detection holes on each panel is at least the same as the quantity of the threaded holes on the air feeding face and the air exhausting face of the cylinder cover; and the detection holes on each panel are respectively aligned with the detection holes on the air feeding face and the air exhausting face. Compared with the prior art, the detection device has the advantages of simple structure, convenience for operation and obviously-improved detection efficiency; and with the adoption of the device, the generation of accumulated errors is avoided and the detection precision of the location degree of the threaded hole of the air feeding / exhausting face is improved.

Description

technical field [0001] The invention relates to a detection device and a detection method for the position degree of threaded holes on the intake and exhaust surfaces of an engine cylinder head. Background technique [0002] At present, in the machining of the cylinder head of the automobile engine, there are many threaded holes on the intake and exhaust surfaces, and various errors during processing will cause a large deviation in the position of the individual threaded holes, resulting in the assembly of the intake and exhaust manifolds on the cylinder head. The accuracy is too low, and even some screws cannot be installed. The traditional detection of the threaded hole position on the top surface of the cylinder head only detects the position of a single threaded hole at a time. Not only is the detection efficiency low, but it is also prone to large cumulative errors, and it is impossible to guarantee whether the cumulative errors generated by the detection meet the insta...

Claims

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Application Information

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IPC IPC(8): G01B5/00
Inventor 郑志勋
Owner WUHU YONGYU AUTOCAR INDAL