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Vernier caliper correcting method and corrector thereof

A calibration method and vernier caliper technology, which is applied in the direction of sliding gauges, measuring gauges, etc., can solve the problems of affecting the grinding accuracy and speed, low grinding quality, and long time consumption, and achieve the effects of shortening grinding time, easy operation, and improving grinding quality

Active Publication Date: 2010-06-02
慈溪汇丽机电股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this grinding method requires the fingers of the left hand to be in a state of force all the time, while the fingers of the right hand grasp the grinder and do back and forth reciprocating and rotating motions at the same time. It is difficult to maintain the balance of the grinder surface, which affects the accuracy and speed of grinding. Generally, a pair of calipers is repaired. It takes 1 to 2 days, and there are disadvantages of low grinding quality and time-consuming

Method used

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  • Vernier caliper correcting method and corrector thereof
  • Vernier caliper correcting method and corrector thereof
  • Vernier caliper correcting method and corrector thereof

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Experimental program
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Embodiment 1

[0018] In conjunction with accompanying drawing, the present invention will be further described:

[0019] Vernier caliper calibration method of the present invention, comprises the following steps:

[0020] 1. Prepare a calibrator. The calibrator includes a working groove that cooperates with the main ruler measuring claw and a calibration surface that cooperates with the measuring surface on the auxiliary ruler measuring claw. The bottom surface of the working groove and the calibration surface parallel;

[0021] 2. Clamp the corrector with the root of the outer card of the caliper;

[0022] 3. Put the caliper upright on the workbench with rubber pads, and the outer side of the main ruler's measuring claw is in contact with the workbench. Use a copper hammer to knock down on the top of the auxiliary ruler's measuring claw, so that the deformed outer card can be preliminarily corrected;

[0023] 4. Then use a grinding block to grind the two measuring surfaces.

[0024] The...

Embodiment 2

[0026] This embodiment is an illustration to the calibrator:

[0027] The calibrator of the present invention includes a working groove cooperating with the measuring jaw 1 of the main scale and a calibration surface cooperating with the measuring surface on the measuring jaw 2 of the auxiliary scale. The bottom surface of the working groove is parallel to the calibration plane.

[0028] The working groove is an annular groove 31, and the calibration surface is a plane 32 parallel to the axis of the annular groove.

[0029] The technical concept of the present invention is: when correcting and grinding the outer card of the vernier caliper, first use the root of the main ruler measuring claw 1 of the caliper to cooperate with the working groove of the corrector 3, and then use the auxiliary ruler measuring claw 2 to lock the Calibrator 3; put the caliper upright on the workbench with rubber pads, the outer side of the main ruler measuring claw 1 is in contact with the workbenc...

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Abstract

The invention relates to a correction method for a vernier caliper, which comprises the following steps: a. a corrector is prepared and comprises an operating groove which is matched with a measuringjaw of a main scale and a calibration surface which is matched with measuring surfaces on a measuring jaw of an auxiliary scale, and the bottom surface of the operating groove is parallel to the calibration surface; b. the corrector is clamped by the root of outside calipers of the caliper; c. the caliper is uprightly placed on a worktable which is provided with a rubber pad, the outside of the measuring jaw of the main scale of the caliper contacts the operating groove, the top of the measuring jaw of the auxiliary scale is knocked downwards by a copper hammer and the deformed outside calipers are initially corrected; and d. the two measuring surfaces are grinded by a grinding block. The special corrector of the correction method comprises the operating groove which is matched with the measuring jaw of the main scale and the calibration surface which is matched with the measuring surfaces on the measuring jaw of the auxiliary scale, and the bottom surface of the operating surface is parallel to the calibration surface. The correction method has the advantages of being simple and convenient to operate, being helpful to improve the grinding quality of the caliper and shortening thegrinding time.

Description

technical field [0001] The invention relates to a calibration method and a calibrator for calibrating the outer card of a worn vernier caliper. technical background [0002] The vernier caliper is one of the most commonly used measuring tools in the machinery industry. Due to frequent use, the two measuring planes of the main ruler measuring claw and the auxiliary ruler measuring claw (that is, the outer card) are easily worn, resulting in non-parallel measurement surfaces of the two outer cards. As a result, the measurement accuracy is reduced, so the caliper needs to be calibrated and ground frequently. [0003] Correcting the parallelism of the two outer cards of the vernier caliper is usually achieved by grinding the measuring surfaces of the two outer cards to meet the parallelism requirements. The traditional method of repairing and calibrating the outer cards of the vernier caliper is to fix the main ruler of the vernier caliper on the vise. Place the grinder in the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B3/20
Inventor 沈素珍赖晓渝
Owner 慈溪汇丽机电股份有限公司