Method for acquiring dimension of measuring pin and position tolerance of measuring pin
An acquisition method and technology for measuring pins, which can be applied to measuring devices, instruments, etc., and can solve problems such as uncertainty in empirical values.
Active Publication Date: 2015-03-25
CHINA HANGFA SOUTH IND CO LTD
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Problems solved by technology
[0003] The main purpose of the present invention is to provide a method for obtaining the size of the measuring pin and the positional tolerance of the measuring pin, so as to solve the problem that in the prior art, designers rely on experience to obtain values for the size of the measuring pin and the positional tolerance of the measuring pin , the problem that the empirical value has uncertainty
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[0018] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0019] The present application provides a method for obtaining the size and position tolerance of a measuring pin. The measuring pin is used to measure whether the size and position of a hole to be measured are qualified. Get the actual size of the hole, get the diameter tolerance of the measuring pin, get the total tolerance of the measuring pin, and get the size of the measuring pin and the position tolerance of the measuring pin through the actual size of the hole, the diameter tolerance of the measuring pin and the total tolerance of the measuring pin.
[0020] Wherein, the size of the measuring pin includes the nominal size of the measuring pin and the dimensional deviation of the measurin...
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The invention provides a method for acquiring the dimension of a measuring pin and the position tolerance of the measuring pin. The measuring pin is used for determining whether the position of a hole to be measured meets the demand or not, and the dimension of the measuring pin comprises the name dimension of the measuring pin and the dimensional deviation of the measuring pin. The acquiring method comprises the steps that the virtual dimension of the hole to be measured and the gross tolerance of the measuring pin are acquired; the virtual dimension of the hole to be detected and the diameter tolerance of the measuring pin are acquired; the name dimension of the measuring pin is determined through the virtual dimension of the hole to be measured and the gross tolerance of the measuring pin; the dimension of the measuring pin is determined through the name dimension of the measuring pin and the dimension deviation of the measuring pin; the position tolerance of the measuring pin is determined through the gross tolerance of the measuring pin and the diameter tolerance of the measuring pin. According to the technical scheme, the method solves the problems that in the prior art, a designer values the dimension of the measuring pin and the position tolerance of the measuring pin through experience, and empirical valuation has uncertainty.
Description
technical field [0001] The invention relates to the field of measurement of mechanical parts, in particular to a method for acquiring the size of a measuring pin and the positional tolerance of the measuring pin. Background technique [0002] The position degree comprehensive gauge is often used for dimensional accuracy detection when the part inspection surface has the largest physical requirement, for example, using a measuring pin to detect the accuracy of the measured hole. The value of the measurement pin size is directly related to whether the accuracy of the measured hole can be accurately detected, so the value of the measurement pin size is particularly important when detecting the actual contour of the part. At present, designers rely on experience to select the gauge size of the measuring pin, which is uncertain. Contents of the invention [0003] The main purpose of the present invention is to provide a method for obtaining the size of the measuring pin and th...
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Login to View More IPC IPC(8): G01B21/00
CPCG01B21/00
Inventor 刘梅张红丽徐改弟
Owner CHINA HANGFA SOUTH IND CO LTD