# US 5,706,581 A · High precision mounting method for linear guide rail

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- Number: US 5,706,581 A
- Document ID: US5706581A
- Status: Granted
- Kind: A
- Application number: 08/503,934
- Filed: 1995-07-19
- Granted: 1998-01-13
- Earliest claimed: 1994-07-19
- Assignees: Nsk Ltd.
- Inventors: Soichiro Kato; Hideyuki Tajimi
- Web page: https://patentgrep.com/patent/US5706581A

## CPC

- F16C 29/005: {Guide rails or tracks for a linear bearing, i.e. adapted for movement of a carriage or bearing body there along}
- B23Q 1/017: {Arrangements of ways}
- B23Q 1/26: characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members {(bearings for linearly moving parts F16C29/00)}
- B23Q 3/186: {Aligning devices}
- F16C 29/004: {Fixing of a carriage or rail, e.g. rigid mounting to a support structure or a movable part}
- F16C 29/008: {Systems with a plurality of bearings, e.g. four carriages supporting a slide on two parallel rails}
- F16C 29/12: Arrangements for adjusting play
- F16C 2322/39: General buildup of machine tools, e.g. spindles, slides, actuators
- Y10T 29/49696: Mounting
- Y10T 29/49902: by manipulating aligning means
- Y10T 29/53913: Aligner or center
- F16C: SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- B23Q: DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING (tools of the kind used in lathes or boring machines B23B27/00); MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A high precision mounting method for linear guide rails is performed with the steps of: fixing the first linear guide rail to a first predetermined position while pressing the first linear guide rail against the reference surface of the mounting jig, disposing the mounting jig at a second predetermined position so that a section shape of the reference surface of the mounting jig in a longitudinal direction thereof is symmetric with respect to a center line between the first and second linear guide rails, and fixing the second linear guide rail to the mounting bed while pressing the second linear guide rail against the reference surface of the mounting jig disposed symmetrically. The mounting method is capable of mounting the linear guide rails in a short time.

## Claims

### Claim 1

A mounting method of mounting parallel first and second linear guide rails on a mounting bed by a mounting jig with a reference surface, the method comprising the steps of:
(a) fixing the first linear guide rail to a first predetermined position while pressing the first linear guide rail against the reference surface of the mounting jig;
(b) disposing the mounting jig at a second predetermined position so that a section shape of the reference surface of the mounting jig in a longitudinal direction thereof is symmetric with respect to a center line between the first and second linear guide rails; and
(c) fixing the second linear guide rail to the mounting bed while pressing the second linear guide rail against the reference surface of the mounting jig disposed symmetrically by the step (b).

### Claim 2 (depends on 1)

The mounting method of claim 1, wherein in the step (b), the mounting jig is so turned along the center line that a surface of the mounting jig, which contacts the mounting bed in a first direction, faces toward a second direction opposing the first direction.

### Claim 3 (depends on 1)

The mounting method of claim 1, wherein in the step (b), the mounting jig is so rotated in a horizontal direction on the mounting bed that the mounting jig is positioned in a point symmetric relation with respect to a central point on the center line.