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Length Measuring Mechanism

A technology of length measurement and structure, applied in the field of length measurement mechanism, which can solve problems such as ambiguity

Active Publication Date: 2020-11-13
DR JOHANNES HEIDENHAIN GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] A disadvantage of this construction according to the prior art is that the position of the mounting block relative to the hollow profile is not defined in the delivery state (Anlieferzustand) before attachment to the machine part ( undefiniert, sometimes called undefined)

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] The invention is illustrated in terms of a number of embodiments. The exemplary embodiments differ only in the configuration of the adjusting means.

[0026] according to Figures 1 to 7 A first embodiment of the length measuring mechanism designed according to the invention is explained. here, figure 1 and 2 shows the length measuring mechanism in said first assembled state, and image 3 The length measuring device is shown in the second assembled state.

[0027] The length measuring device comprises a hollow profile 1 having a longitudinal slot 11 sealed by a sealing lip arranged in the shape of a crown. With regard to position measurement, a scanning unit is arranged inside the hollow profile 1 , which is secured to an object 50 to be measured via a drive unit guided through the sealing lip and the longitudinal slot 11 . For position measurement, the drive part of the scanning unit is attached to a first object 50 to be measured and the hollow profile 1 is atta...

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PUM

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Abstract

The invention relates to a length measuring device for measuring the relative position of two objects, with a hollow profile (1), in the interior of which a measuring tape (2) is tensioned extending in the longitudinal direction (X). The measuring tapes ( 2 ) are each fastened at the ends to one of the objects by means of mounting blocks ( 3 ). In the attached state (first assembled state), at least one of the assembly blocks (3) is arranged displaceably in the longitudinal direction (X) on the hollow profile (1). An adjustment means (4.1) is movably mounted on the hollow profile (1), which adjustment means can be brought from a first position into a second position, wherein the assembly block (3) is mounted on the adjustment means (4.1, 4.2, 4.3) in the first assembled state and the movement of the assembled block (3) into the second position by the adjustment means (4.1, 4.2, 4.3) A transition to the second assembly state is possible.

Description

technical field [0001] The invention relates to a length measuring mechanism according to the features of the preamble of claim 1 . Background technique [0002] ES 2 110 902 A1 discloses such a length measuring mechanism. The length measuring device comprises a hollow profile, in the interior of which a measuring band (Maßband, sometimes referred to as a measuring stick) is tensioned extending in the longitudinal direction. Mounting blocks are arranged at the ends of the measuring tapes respectively, at which the measuring tapes are fixed. The two mounting blocks are each positioned on the hollow profile by means of screws in such a way that the two mounting blocks can be displaced relative to the hollow profile in the longitudinal direction. For position measurement, the measuring tape is connected directly to the machine part by screwing the mounting block, whereby a temperature-dependent change in length of the machine part is applied to the measuring tape. Due to the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B5/02G01B5/00
CPCG01B5/0002G01B5/02G01D5/34707G01D5/34746G01B21/16G01B5/0004G01B5/0014G01B5/14
Inventor H.迈尔
Owner DR JOHANNES HEIDENHAIN GMBH