Assembly for position measurement

Patent metadata

Field	Value
Publication number	US-11733019-B2
Application number	US-202117207761-A
Country	US
Kind code	B2
Filing date	Mar 22, 2021
Priority date	Apr 8, 2020
Publication date	Aug 22, 2023
Grant date	Aug 22, 2023

Abstract

An assembly comprises a support including a plurality of individual sections. A scale is disposed on the support. The scale extends in a longitudinal direction and has a measuring graduation for position measurement at least in the longitudinal direction. A plurality of fastening devices are configured to fasten the scale to the support. The fastening devices are disposed on the individual sections of the support.

First claim

What is claimed is:

1. An assembly comprising:
a support including a plurality of individual sections;
a scale disposed on the support, the scale extending in a longitudinal direction and having a measuring graduation for position measurement at least in the longitudinal direction; and
a plurality of fastening devices configured to fasten the scale to the support, the fastening devices being disposed on the individual sections of the support.

2. The assembly as recited in claim 1 , wherein the individual sections of the support are each associated with one of the fastening devices or with a pair of the fastening devices, the fastening devices of a respective pair being disposed opposite each other in a transverse direction perpendicular to the longitudinal direction.

3. The assembly as recited in claim 1 , wherein the individual sections of the support are spaced apart in the longitudinal direction.

4. The assembly as recited in claim 1 , wherein the individual sections of the support are equidistantly distributed in the longitudinal direction.

5. The assembly as recited in claim 1 , wherein the fastening devices include at least a first fastening device disposed at a first side face of the scale extending in the longitudinal direction.

6. The assembly as recited in claim 5 , wherein the first fastening device is configured to support the scale at a first position such that the scale is freely movable in the longitudinal direction relative to the support.

7. The assembly as recited in claim 5 , wherein the first fastening device is configured to support the scale on the support such that the scale is fixed in a transverse direction perpendicular to the longitudinal direction.

8. The assembly as recited in claim 5 , wherein the first fastening device has a first portion which is fastened to the first side face of the scale by a material-to-material bond.

9. The assembly as recited in claim 5 , wherein the first fastening device has a second portion, the second portion being fastened, by a material-to-material bond, to a top face of one of the individual sections of the support.

10. The assembly as recited in claim 8 , wherein the material-to-material bond is an adhesive bond.

11. The assembly as recited in claim 5 , wherein the fastening devices include a second fastening device disposed at a second side face of the scale extending in the longitudinal direction, the first fastening device and the second fastening device being disposed opposite each other in a transverse direction perpendicular to the longitudinal direction.

12. The assembly as recited in claim 11 , wherein the first fastening device and the second fastening device each include a flexure bearing.

13. The assembly as recited in claim 11 , further comprising at least a first adhesive for fastening the scale to the support, the first adhesive being disposed on a top face of one of the individual sections of the support that is associated with the first fastening device and the second fastening device, and between the first fastening device and the second fastening device.

14. The assembly as recited in claim 13 , wherein the first adhesive is strip-shaped and extends substantially in a transverse direction perpendicular to the longitudinal direction.

15. The assembly as recited in claim 6 , wherein the fastening devices include at least a third fastening device disposed at the first side face of the scale, the third fastening device being configured to support the scale on the support at a second position different from the first position such that the scale is fixed in the longitudinal direction and in a transverse direction perpendicular to the longitudinal direction.

Assignees

• Heidenhain Gmbh Dr Johannes

Inventors

• Bauer Kilian

Classifications

• G01B5/0014 Primary

  due to temperature (on machine tools B23Q11/0003) · CPC title

• G01D5/20

  by varying inductance, e.g. by a movable armature · CPC title

• G01D5/34715

  Scale reading or illumination devices · CPC title

• G01D5/34753 Primary

  Carriages; Driving or coupling means · CPC title

• G01B3/04 Primary

  rigid · CPC title