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Diameter measurement ruler

A caliper ruler and a technology for measuring diameter, which is applied in the field of caliper rulers, can solve problems such as the inability to measure the inner diameter of workpieces, etc.

Inactive Publication Date: 2014-06-25
涂振仲
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the diameter measuring ruler can only measure the outer diameter of the workpiece, and cannot measure the inner diameter of the workpiece, so it still has limitations

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0032] The caliper structure of the present embodiment is as figure 1 As shown, it includes a scale body 1, a moving ruler 2 arranged in the scale body 1 and parallel to the scale body 1, and a vernier 3 arranged on the scale body 1 and able to slide along the length direction of the scale body 1. The moving ruler 2 can also be According to actual needs, it is arranged on the interlayer, back or side of the ruler body 1. One end of the movable ruler 2 is connected to the vernier 3 in a manner that can move synchronously, and the other end is suspended in the air. The specific linking method of the movable ruler 2 and the vernier 3 can be selected according to needs. If a fixed link is adopted, the vernier 3 and the moving ruler 2 can also be directly designed as an integrated one, and the moving ruler 2 can also slide along the length direction of the ruler body 1 . The cursor 3 is also provided with a fastening screw 31 for fixing the position of the cursor 3 and a digital di...

Embodiment 2

[0036] The difference between this embodiment and Embodiment 1 is that the shape of the claw 41 on the caliper block 4 is different, and the shape of the caliper block 4 of the present embodiment is as follows Figure 4 As shown, the jaws 41 arranged on the caliper block 4 are needle point-shaped jaws, and the distance between the two jaws 41 is the distance between the sharp points of the two jaws. Use the caliper of this embodiment to measure the outside diameter and inner diameter, the contact points of the jaws 41 and the arc of the workpiece to be measured are all on the sharp point of the jaws 41, so the scale value of the diameter scale does not need to mark the outer diameter and the inner diameter separately. The principle of the caliper of the present embodiment is the same as that of Embodiment 1.

Embodiment 3

[0038] The difference between this embodiment and Embodiment 1 is that there are two caliper blocks 4, which are used to measure the outer diameter and the inner diameter respectively, and different caliper blocks 4 can be replaced according to needs during use. The shape of the measuring block 4 used to measure the outer diameter is as Figure 5 As shown, the shape of the measuring block 4 used to measure the inner diameter is as follows Image 6 As shown, all are knife-shaped claws, and the distance between the two claws 41 is the distance between the sharp points of the two claws. The principle of the caliper of the present embodiment is the same as that of Embodiment 1.

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Abstract

The invention provides a diameter measurement ruler which is high in measurement accuracy and wide in measurement range. The diameter measurement ruler comprises a ruler body, a movable ruler and a vernier, wherein the movable ruler is arranged inside the ruler body or on the ruler body and is parallel with the ruler body, the vernier is arranged on the ruler body and can slide in the length direction of the ruler body, scales are arranged on the ruler body, the vernier and the movable ruler are connected in the mode that the vernier and the movable ruler can move synchronously, a diameter measurement component is arranged at the tail end of the ruler body, the diameter measurement component is provided with an installation block connected to the tail end of the ruler body, claws are arranged at two sides of the installation block respectively, the claws and the movable ruler are located on the same plane, the two claws are symmetrically distributed with the movable ruler as the center and are parallel with each other, the distance between the two claws is preset, and the length of each claw is preset. Through the matching of diameter measurement blocks and the movable ruler, the diameter measurement ruler can accurately measure the diameter of a workpiece to be measured, is high in measurement accuracy, can measure both the outer diameter and the inner diameter of the workpiece, and is wide in measurement range.

Description

technical field [0001] The invention relates to a measuring tool, in particular to a caliper that can measure diameter quickly and accurately. Background technique [0002] Commonly used measuring tools for measuring the diameter of workpieces are mainly vernier calipers or micrometers, but these two measuring tools are directly clamped on the diameter for measurement, resulting in a great limitation in the measurement range. For circular or spherical workpieces with larger diameters , or a spherical or arc-shaped workpiece smaller than a semicircle, you need to use other measuring tools for measurement. [0003] Chinese utility model patent ZL92234699.2 discloses an opening and closing square, which is connected by a scale and a groove plate through a rotating shaft, which can be opened and closed freely, and is connected with a positioning hole with a double pin to determine the included angle of the square. The sine and cosine theorem quickly measures the diameter of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B5/08
Inventor 涂振仲
Owner 涂振仲
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