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Linear scale

一种线性标尺、标尺的技术，应用在用于直接读数的尺、仪器、滑动接触轴承等方向，能够解决高制造成本、制造需要时间等问题，达到降低制造成本、提高制造效率、确保检测精度的效果

Active Publication Date: 2019-01-15
MITUTOYO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the linear scale has a problem that the cutting process causes high manufacturing cost and takes time for manufacturing

Method used

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  • Linear scale
  • Linear scale
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Experimental program
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Embodiment Construction

[0043] Embodiments of the present invention will be described below based on the drawings.

[0044] Figures 1A to 3 is a graph showing a linear scale according to the present invention. in particular, Figure 1A is the perspective view of the linear scale, Figure 1B is a side view of the linear scale. figure 2 is a diagram showing a portion of the linear scale on the left side depicted in Figure 1 in an enlarged manner, image 3 is corresponding to Figure 1A Cross-sectional view of the linear scale in line A-A.

[0045] The measuring device 1 for measuring the moving distance between the parts to be measured is a linear scale. As shown in FIG. 1 , the linear scale includes a measuring device main body 2 and a detector 3 freely movable along the measuring device main body 2 . The measuring device 1 measures the movement distance between a pair of first measurement object parts W1 and second measurement object parts W2 . The measuring device main body 2 is fixed to the...

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PUM

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Abstract

The invention discloses a linear scale. A measurement device includes: attachment holes, provided on a scale frame with respect to a measurement direction; rear-face bushings inserted into the attachment holes from a rear face side of the scale frame; and fasteners that fix the scale frame to first measurement target part. Each of the rear-face bushings includes: a cylinder part, which is formed shorter than the length of the attachment holes with respect to a penetration direction and is formed having an outer diameter smaller than the inner diameter of the attachment holes; a flange, which is formed at the end of the cylinder part located toward the first measurement target part and which has an outer diameter greater than the inner diameter of the attachment holes; and an elastic member, which is cylindrical in shape and is provided covering the outer circumferential surface of the cylinder part. Each fastener comprises a shaft part inserted into the cylinder part and a head part having an outer diameter greater than the inner diameter of the attachment holes.

Description

technical field [0001] The invention relates to a linear scale. Background technique [0002] A measuring device (linear scale) is known, which includes a long scale frame having a built-in scale and a detector that detects a relative movement amount with the scale, and which measures the moving distance between a pair of measurement object parts in a machine tool or the like . In such a linear scale, a first measurement object part of a pair of measurement object parts is fixed to a scale frame, and a second measurement object part is fixed to a detector. The linear scale measures the movement distance between the measurement object parts by reading the relative movement amount with respect to the scale built in the scale frame by the detector. [0003] Here, the scale frame is formed of, for example, aluminum, and the first measurement object member is formed of, for example, iron. The coefficient of linear expansion of aluminum is 23×10 -6 / K, while the linear expansi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B3/04
CPCG01B3/04G01D5/24442G01D11/30G01D5/00F16C17/02F16C17/26
Inventor 山口庸夫大竹智之
Owner MITUTOYO CORP
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