Gauge and part detection method

A technology for parts and inspection tools, applied in the field of inspection tools and parts detection, can solve problems such as increased manufacturing costs, and achieve the effects of improving inspection efficiency, fast and intuitive inspection methods, and improving accuracy

Inactive Publication Date: 2020-05-26
NIO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the method of using polished rods to detect pins actually imposes stricter tolerance requirements, which will lead to misjudgment of qualified parts as unqualified parts, resulting in increased manufacturing costs

Method used

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  • Gauge and part detection method
  • Gauge and part detection method
  • Gauge and part detection method

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Embodiment Construction

[0036] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary only, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.

[0037] figure 1 Is the assembly diagram of bolts and threaded holes.

[0038] Such as figure 1 (a) and figure 1 as shown in (b), figure 1 (a) The requirements for a threaded hole on the first part shown on the drawing are: for a threaded hole with a diameter of M14, the axis of the largest inscribed cylinder is within the tolerance zone T perpendicular to the direction A 1 is 0.4. However, there is a lack of require...

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PUM

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Abstract

The invention discloses a detection tool, which is used for detecting an extension tolerance zone of a threaded hole in a part, and comprises a detection tool body and a detection bolt, the detectiontool body comprises a base used for supporting a part; a base is used for supporting the part; wherein one end of the base extends in the first direction to form a first positioning part used for abutting against a part. The first positioning part is parallel to the extending direction of the base to form a support, the support is provided with a through hole, and the through hole is coaxial witha threaded hole in the part. The upper surface of the support is a stopping surface of the testing fixture body. The detection bolt comprises a limiting part and a detection part; the step surfaces ofthe limiting part and the detection part are limiting surfaces of the detection bolt; and the limiting surface is used for being matched with the stopping surface to detect the part. On one hand, thedetection efficiency of parts is improved; on the other hand, the detection precision is improved.

Description

technical field [0001] The invention relates to the field of mechanical parts, in particular to a checking fixture and a part testing method. Background technique [0002] The first part is provided with a threaded hole, and the first part and the second part are assembled through the cooperation of fasteners such as bolts / studs, screws, pins, keys and the threaded holes. Interference between the heel of the fastener and the mating surface of the second part due to the angled inclination of the fasteners such as bolts / studs, screws, pins, keys, etc. (see figure 1 (a) and 1(b)), in order to ensure the assembly of the fastener, when the second part is a thick-walled part, it is necessary to increase the extension tolerance requirement for the threaded hole of the first part, so that the fastener has a certain When tilted at an angle, interference is avoided and assembly is successful (see figure 1 (c) and figure 1 (d)). The evaluation object of the extension tolerance is t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B5/00
CPCG01B5/00
Inventor 付红圣连翠翠罗钧鼎
Owner NIO CO LTD
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