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A digital vernier gap gauge and its application method

A technology of gap ruler and vernier ruler, which is applied in the direction of mechanical gap measurement, etc., can solve the problems of complex operation of gap feeler gauge, inability to perform accurate measurement, and difficulty in aligning gaps, etc., and achieve the effect of compact structure, simple structure, and easy processing and assembly

Inactive Publication Date: 2017-06-23
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are many methods for gap measurement, but the main gap measurement devices and methods have the following deficiencies: the combination operation of the gap feeler gauge is complicated, and errors will be caused during the combination process; the triangular feeler gauge will introduce The force perpendicular to the direction of the gap will introduce errors for the measurement of the gap value formed by soft materials; the gap measurement tool disclosed in CN202582447U is difficult to align the gap because both sides are stepped, so it cannot be easily inserted into the gap, and the measurement error Larger and cannot be measured accurately

Method used

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  • A digital vernier gap gauge and its application method
  • A digital vernier gap gauge and its application method
  • A digital vernier gap gauge and its application method

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Experimental program
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Effect test

Embodiment 1

[0027] refer to figure 1 , figure 2 and image 3 As shown, a digital vernier gap gauge includes a vernier scale component, a measuring component, a connecting device, etc., and the precise measurement of the gap size in the mechanism is realized through the vernier gap gauge.

[0028] Among them, the vernier ruler assembly is divided into two parts, the mechanical mechanism and the sensor. The mechanical mechanism part is composed of the vernier 2, the main ruler 1, and the fastening screw 3; 2 Fixed at any position of the main scale 1; there is a spring piece between the main scale 1 and the vernier 2, so that the vernier 2 is close to the main scale 1; the vernier 2 can move horizontally on the main scale 1 to realize the measurement of the gap value; the sensor Some of them are capacitive grid displacement sensors located in the vernier 2 .

[0029] The pressure measurement assembly consists of a linear bearing 5, a pressure sensor 6, a fastening bolt 7, and a thrust ro...

Embodiment 2

[0032] A method for measuring the internal gap value of a mechanism using a digital vernier gap ruler, characterized in that the method includes the following steps:

[0033] Step 1. The parameter initialization step of the measuring scale: the vernier 2 is fixed on the main scale 1 by fastening the screw 3 on the upper end of the vernier 2, and the zero scale line of the vernier 2 is aligned with the zero scale line of the main scale 1.

[0034] Step 2. Gap value measurement step: According to step 1, adjust the vernier gap gauge to zero and put the left end of the thrust rod 8 close to the outer surface of the mechanism under test, loosen the fastening screw 3, and drive it by slowly rotating the inclined connecting rod 4 The cursor 2 and the thrust rod 8 move, and the pressure sensor 6 and the displacement sensor inside the cursor 2 transmit the pressure and the displacement of the cursor 2 to the data acquisition device.

[0035] Step 3, the data collection and processing ...

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Abstract

The invention relates to a digital vernier gap gauge and its usage method, wherein the digital vernier gap gauge includes a vernier gauge assembly, a pressure measurement assembly, and a connecting device; Ruler (1), fastening screw (3); the pressure measurement assembly includes a pressure sensor (6), a thrust rod (8), a linear bearing (5), and a fastening bolt (7); the connecting device includes a diagonal connection Rod (4), pin (9), main connecting rod (10), connecting bolt. The invention has the following beneficial effects: simple structure, convenient processing, strong versatility, easy assembly and simple operation.

Description

technical field [0001] The invention specifically relates to a digital vernier gap gauge for accurately measuring gap size. Background technique [0002] In the mechanical system, in order to ensure the smooth assembly of the parts and the normal movement of the kinematic pair, it is inevitable that there is an appropriate gap between the parts. However, due to the processing errors in the manufacturing process and the influence of factors such as wear, thermal effects and local deformation of the parts during service, the gap size will gradually deviate from the reasonable control range. Unreasonable clearance not only affects the geometric dimensions of the mechanical system, but also the contact-collision force caused by the clearance will greatly affect the dynamic response of the system, making it deviate from the ideal state, which will lead to abnormal vibration and poor sealing of the mechanical system , reduced lifespan, etc. Therefore, it is of practical signific...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B5/14
Inventor 李兵权双璐刘杰韩罗峰何安琦
Owner XI AN JIAOTONG UNIV