Method for measuring minimum wall thickness between holes

An inspection method, the smallest technology, applied in the direction of mechanical thickness measurement, measuring devices, instruments, etc., can solve the problems of complex inspection process, scrapped sample parts, and inability to guarantee parts qualified, etc., to simplify the inspection process, easy to operate, and reduce misjudgment The effect of the probability of

Active Publication Date: 2015-01-21
GUANGXI YUCHAI MASCH CO LTD
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0008] Disadvantages of the prior art: the anatomical inspection of the sample parts is a destructive test, and the sample parts are scrapped due to damage
This inspection method is relatively complicated because the parts need to be dissected to be inspected.
Because it is a destructive test, it is suitable to adopt a sampling inspection plan, but the sampling inspection plan has a certain probability of misjudgment, and it cannot guarantee that every part is qualified

Method used

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  • Method for measuring minimum wall thickness between holes
  • Method for measuring minimum wall thickness between holes
  • Method for measuring minimum wall thickness between holes

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Embodiment Construction

[0018] The specific embodiments 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 embodiments.

[0019] Unless expressly stated otherwise, throughout the specification and claims, the term "comprise" or variations thereof such as "includes" or "includes" and the like will be understood to include the stated elements or constituents, and not Other elements or other components are not excluded.

[0020] The processing conditions of the two disjoint inner holes according to the specific embodiment of the present invention are as described in the background technology: two inner cylindrical holes 1, 2 with radii a and b are processed by two drill bits on the same machine tool, Their positions are relatively fixed. And the inner cylindrical hole 3 whose diameter is c is drilled from another plane by a drill bit of ano...

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Abstract

The invention discloses a method for measuring the minimum wall thickness between holes. The wall thickness refers to the thickness of a wall between the first inner cylindrical hole and the second cylindrical hole. The method comprises the following steps that first, a cylindrical insertion rod is inserted into the first inner cylindrical hole, wherein the diameter of the cylindrical insertion rod is the same as that of the first inner cylindrical hole, the insertion end of the cylindrical insertion rod is stopped at the inner surface of a third inner cylindrical hole communicated with the first inner cylindrical hole, the third inner cylindrical hole is communicated with the first inner cylindrical hole and does not intersect with the second inner cylindrical hole, and a gap is formed between the outer surface of the cylindrical insertion rod and the side, close to the second inner cylindrical hole, of the third inner cylindrical hole; the cylindrical insertion rod is inserted into the gap to test whether the wall thickness between the holes to be inspected is qualified, wherein the diameter of the cylindrical insertion rod is the difference between the radius of the third inner cylindrical hole and the radius of the cylindrical insertion rod. The method avoids disassembly testing, eliminates abandonment of test samples and reduces losses.

Description

technical field [0001] The invention relates to the field of machining, in particular to a method for inspecting the minimum wall thickness between holes. Background technique [0002] The minimum wall thickness between two disjoint inner holes machined out cannot be directly inspected. The traditional inspection method is: select a certain number of samples from a batch of processed parts for anatomical inspection, and judge according to the inspection results of the samples. Whether this batch of parts is qualified or not. [0003] There are two disjoint bores such as figure 1 As shown, the processing conditions of holes and the traditional inspection methods of wall thickness are as follows: [0004] 1. The two inner cylindrical holes with radii a and b are processed by two drills on the same machine tool, and their positions are relatively fixed; [0005] 2. The inner cylindrical hole with diameter c is drilled from another plane by a drill bit of another machine tool...

Claims

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Application Information

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IPC IPC(8): G01B21/08
CPCG01B5/06
Inventor 唐滨梁顺生陈安怀方威金
Owner GUANGXI YUCHAI MASCH CO LTD
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