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Detecting device for engine cylinder head end surface threaded hole position and detecting method thereof

A technology for engine cylinder heads and detection devices, applied in mechanical measuring devices, measuring devices, mechanical devices, etc., can solve problems such as low precision, low detection efficiency, and inability to install end face parts, so as to improve detection accuracy and operate conveniently and efficiently , The effect of improving the detection efficiency

Active Publication Date: 2015-06-10
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, since there are many threaded holes on the end face of the cylinder head, various errors during processing will cause the position deviation of individual threaded holes to be large, resulting in the accuracy of assembling the end face parts on the cylinder head. If it is too low, even some screws cannot be installed
[0003] The traditional detection of the threaded hole position on the end face 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 of multiple holes meet the installation requirements. , because the cumulative error will cause a large position deviation of the end face parts installed on the end face, and even cause the end face parts to fail to install, so how to reduce the generation of this cumulative error is also a big problem

Method used

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  • Detecting device for engine cylinder head end surface threaded hole position and detecting method thereof
  • Detecting device for engine cylinder head end surface threaded hole position and detecting method thereof
  • Detecting device for engine cylinder head end surface threaded hole position and detecting method thereof

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Experimental program
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Effect test

Embodiment 1

[0019] 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 6 is placed on the positioning pin 2. There are three positioning pins 2, of which there are two limiting pins. Position pins 2 are distributed at two corners of one side of the cylinder head 6, and the other limit pin 2 is located in the middle of the opposite side of the cylinder head 6, with stable positioning. The top surface of the limit pin 2 is Plane, and the flatness is very small, which is consistent with the positioning requirements of the cylinder head processing. Through this design of the limit pin 2, a stable support for the cylinder head 6 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 6, and there are two positioning pins 3, one of which is a cylindrical...

Embodiment 2

[0021] Such as figure 1 and figure 2 As shown, two panels 4 are respectively fixed on the base plate 1 by a rib plate 5 at both ends thereof, and the rib plate 5 is fastened on the base plate 1 by a screw 10 with a spring washer 9, and the rib plate 5 is set To ensure the stability of each panel 4 and improve detection accuracy. The technical content of this embodiment is applicable to any detection device with any structure described above.

Embodiment 3

[0023] Such as image 3 As shown, hole sleeves 7 are provided in the detection holes on each panel 4 to avoid the adverse effect of wear in multiple inspections on the detection results. When the wear amount of the hole sleeves 7 is too large, they can be replaced in time. 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 detecting device for engine cylinder head end surface threaded hole position and a detecting method thereof. The detecting device includes a thread plug gauge, face plates, a bottom plate for placing the cylinder head and a positioning mechanism used for positioning the cylinder head and arranged on the bottom plate, wherein the two parallel face plates are vertically arranged on the bottom plate. During detecting, the cylinder head is arranged between the two face plates; the two end surfaces of the cylinder head face to one face plate respectively; and the detecting holes in each face plate are identical with the threaded holes in the neighboring end surface of the cylinder head in number, and the detecting holes are in one-to-one correspondence with the threaded holes. Compared with the prior art, the detecting device has simple structure and high detecting efficiency, is convenient to operate, avoids cumulative errors, and improves the detecting precision of the end surface threaded hole position; furthermore, the detecting method has simple process, the operation is convenient and effective, and the staff detecting the products can directly go to operate without the need of training.

Description

technical field [0001] The invention relates to a detection device and a detection method for the position degree of threaded holes on the end surface of an engine cylinder head. Background technique [0002] At present, in the machining of the cylinder head of an automobile engine, since there are many threaded holes on the end face of the cylinder head, various errors during processing will cause a large deviation in the position of the individual threaded holes, resulting in the accuracy of assembling the end face parts on the cylinder head. If it is too low, some screws may even fail to install. [0003] The traditional detection of the threaded hole position on the end face 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 of multiple holes meet the installa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B5/00
Inventor 郑志勋
Owner WUHU YONGYU AUTOCAR INDAL