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Lever indicator

A lever table and lever technology, applied in the field of lever table, can solve the problems of affecting accuracy, increasing cost error, shortening the service life of lever table, etc., to achieve the effects of improving measurement accuracy, reducing errors and saving production costs

Pending Publication Date: 2018-06-01
GUILIN JINGZHUN MEASUREMENT & CONTROL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

No matter what kind of motion transmission mechanism is used between the lever arm and the circular turntable, at least one level of motion transmission will be added, and as long as one level of motion transmission is added, the cost will be increased and errors will be introduced, and the increased transmission mechanism will be used repeatedly in the work Finally, if the gears will wear out, it will also affect the accuracy, which will eventually lead to a shortened service life of the lever gauge

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Such as Figure 1-4 As shown, a lever gauge includes a housing 1, a measuring lever, a displacement sensor and a single-chip microcomputer. The displacement sensor is inside the housing 1, the measuring lever is rotatably mounted on the housing 1, and its front end protrudes out of the housing 1 and is provided with a measuring contact 3, and the end extends to The inside of the housing 1 then oscillates synchronously with the displacement sensor for measurement. The single-chip microcomputer is in the housing 1 and corrects and calculates the measurement result through the signal generated by the displacement sensor swing. A liquid crystal display 4 for displaying the measurement result is also provided outside the housing 1 . The displacement sensor is any one of a capacitive grid sensor, a magnetic grid sensor or a CCD displacement sensor, and is composed of a fixed grid 5 and a sector-shaped movable grid 6 . The fixed grid 5 is fixed above the end of the measuring...

Embodiment 2

[0060] In this embodiment, the anti-sway mechanism is changed, and other structures are consistent with the first embodiment. Such as Figure 5-7 As shown, the anti-deflection mechanism includes two deep groove ball bearings 11 that limit the deflection of the rotation center shaft 8 in the horizontal and vertical directions; the two deep groove ball bearings 11 are located in the housing 1 and corresponding to the upper and lower positions of the rotation center shaft 8, the upper part and the lower part of the rotation center shaft 8 are respectively sleeved on the two deep groove ball bearings 11. Deep groove ball bearing 11 is due to its own structural characteristics, and its inner ring is fixed in the radial direction, that is, in the horizontal direction, and can slide up and down in the axial direction, that is, the vertical direction (upper and lower dead centers). Therefore, by fitting the first deep groove ball bearing 11 on the rotation center shaft 8, the deflect...

Embodiment 3

[0062] In this embodiment, the anti-sway mechanism is changed, and other structures are consistent with the first embodiment. Such as Figure 8-10As shown, the anti-deflection mechanism includes two thrust ball bearings 12 that limit the deflection of the rotation center shaft 8 in the horizontal and vertical directions; the two thrust ball bearings 12 are located in the housing 1 And corresponding to the upper and lower positions of the rotation center shaft 8 , the upper part and the lower part of the rotation center shaft 8 are respectively sleeved on the two deep groove ball bearings 11 . Thrust ball bearing 12 is due to its own structural characteristics, and its inner ring is fixed in the axial direction, that is, in the vertical direction, and can slide left and right (left and right dead points) in the radial direction, that is, the horizontal direction. Therefore, the first thrust ball bearing 12 is sleeved on the rotation center shaft 8 to limit the vertical deflect...

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Abstract

The invention relates to a lever indicator. The lever indicator comprises a shell, a measuring lever, a displacement sensor and a single-chip microcomputer; the tail end of the measuring lever extendsinto the shell and then synchronously swings with the displacement sensor, so that measurement can be performed; the single-chip microcomputer is located in the shell and performs correction throughsignals generated by the swing of the displacement sensor and calculates a measurement result; the outer side of the shell is provided with a liquid crystal display for displaying the measurement result; the displacement sensor is composed of a fixed grid and a moving grid of a sector structure; the fixed grid is fixed in the shell and is corresponding to a position above the tail end of the measuring lever; and the moving grid is fixed on the tail end of the measuring lever, and swings relative to the fixed grid after being linked to the measuring lever. According to the lever indicator of the invention, an entire precision movement transmission mechanism between a lever arm and the moving grid is avoided, and therefore, production costs are greatly saved; and since no intermediate movement transmission mechanisms are arranged between the lever arm and the moving grid, error caused by multi-stage transmission can be decreased, and measurement accuracy can be greatly improved.

Description

technical field [0001] The invention relates to the field of measuring equipment, in particular to a lever gauge. Background technique [0002] The lever gauge is also called the lever dial indicator or the gauge. The traditional lever gauge is a measuring instrument that uses the lever-gear transmission mechanism to change the size into the angular displacement of the pointer and indicate the value of the length and dimension. It is used to measure the geometric shape of the workpiece. Error and mutual position correctness, and the length can be measured by comparison method. [0003] With the development of measurement technology, digital display lever gauges that make the measurement results digitally displayed through displacement sensors have appeared on the market. Existing digital display lever gauges at home and abroad all change the pointer of the indicating gauge into a capacitive encoder on the mechanical component of the original mechanical lever gauge, that is,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B3/22
CPCG01B3/22
Inventor 钟胜赵飚
Owner GUILIN JINGZHUN MEASUREMENT & CONTROL TECH
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