DE20115504U1 - Machine tool rail linear guide has side-sockets with pocket extensions - Google Patents

Abstract

A machine tool has a linear guide with two upright parallel sidewalls with inward-directed sockets holding linear rails (1a). The sockets esp. have flat side-pocket detents at three points around the sides spaced at e.g. 120[deg]C intervals. The side-pockets receive filling-inserts which make minor adjustments to the rail position with respect to the pocket centre point.

Description

Much &Wieske

European Patent Attorneys * Mandataires agrees before the Office europeen des brevets European Trademark Attorneys * Mandataires en marques europeennes

Patent Attorneys' Office Viel & Wieske · P.O. Box 65 04 03 · D-66143 Saarbrücken

RalfBartel In the Countryside 7

66989 Hoeheinöd

Patent attorneys Georg Viel, graduate engineer Christof Viel, engineer diploma EHICS,

Conseil en propriete industrial (France) Thilo Wieske, graduate engineer

P.O. Box 65 04 03 D-66143 Saarbrücken

Tel.:++49-(0)681-58 Fax:++49-(0)681-58

Feldmannutr. 110 D-66119 Saarbrücken

kanzlei@saarpatent.de http://www.saarpatent.de

01115/17.09.2001 1
DESCRIPTION

Linear guide

The invention relates to a linear guide for tools and machine tools, consisting of at least two linear rails arranged parallel to one another, fastened to side walls in corresponding bores, on which a shaft slide is arranged to move.

Such linear guides are known in the field of tools and machine tools and are used to precisely guide the tool arranged on the shaft slide.

For most applications, conventional linear guides have sufficient precision, but there are applications, e.g. when regrinding the

VAT ID No. DE 81 21 16 997

United Volksbanken SaarbrUcken/St. Ingbert (bank code 591 901 00) No. 11 39 78 00 07 Deutsche Bank Saar (bank code 590 700 70) No. 0 742 700

Cooperation with / cooperation with / cooperation avec: Cabinet

LOT of patent law firms

Conseil en propriete industrial Dr. rer. nat. Dipl.-Biol. Ulrike Rudolph

F-57520 Grosbliederstroff D-69198 Schriesheim / Heidelberg

Patent Attorneys Viel & Wieske

European Patent and Trademark Attorneys

01115/17.09.2001

Internal tapers of machine tools, where the required precision is in the range of a thousandth of a millimeter. Such precision is hardly achievable with a conventional linear guide.

The object of the invention is therefore to create a linear guide for high-precision applications.

This object is achieved according to the invention in that the bores have radially arranged pockets into which end gauges for adjusting the linear rails can be introduced.

With the help of these pockets, the linear rails can be adjusted or readjusted by inserting, exchanging or removing gauge blocks, so that a significantly higher level of precision can be achieved than with conventional linear guides. For example, the linear unit according to the invention can be aligned to 1/1000 mm in relation to a base plate supporting the side walls.

It is useful that two of the pockets are offset by 90° from each other and the third pocket is offset by 135° from each of them.

This allows adjustment in all directions with minimal effort.

Furthermore, it is within the scope of the invention that the side walls are arranged on a linear support, which in turn has a guide cone on its underside, which engages in a corresponding hollow cone of the horizontal support plate arranged underneath.

This allows the linear unit to pivot around the longitudinal axis of the cone. An embodiment of the invention is explained below with reference to drawings.

Fig.1

a side view of a linear guide according to the invention,

Patent Attorney's Office .J., ,2·**..· **· * · I J

VIEL & WlESKE 3 " 01115/17.09.2001

European Patent and Trademark Attorneys

Fig. 2 is a plan view of a side wall of a

Linear guide,

Fig. 3 a and

Fig. 3b is a plan view of the linear guide according to the invention in two

Swivel positions.

As can be seen from Fig. 1, 2 and 3, the linear guide according to the invention consists of a horizontal support plate 7 on which a linear support 6 is arranged, wherein the linear support 6 has on its underside a guide cone 2 which engages in a corresponding hollow cone of the horizontal support plate 7 and about whose central axis the linear support 6 is rotatable.

The linear support 6 has two side walls 4, 5 arranged thereon, between which the two linear rails la and the shaft slide 1b that can be moved thereon are arranged. The motor flange 8 is arranged on the drive-side side wall 4.

From Fig. 2 it can be seen that the holes 9 for receiving the linear rails la in the side walls 4, 5 have pockets 10 into which end gauges can be inserted for fine adjustment of the linear guide. It can be seen here that the pockets 10 are arranged in such a way that two of the pockets are offset by 90° from each other and the third pocket is offset by 135° from these. This enables efficient fine adjustment of the linear guide.

Fig. 3a and 3b show how the linear support 2 can be pivoted relative to the horizontal support plate 7 about the central axis of the guide cone 2, thus providing a further adjustment possibility.

Claims (3)

1. Linear guide for tools and machine tools, consisting of at least two linear rails arranged parallel to one another, fastened to side walls in corresponding bores, on which a shaft slide is arranged so as to be movable, characterized in that the bores ( 9 ) have radially arranged pockets ( 10 ) into which end gauges for adjusting the linear rails ( 1a ) can be introduced. 2. Linear guide according to claim 1, characterized in that two of the pockets ( 10 ) are offset by 90° to each other and the third pocket ( 10 ) is in turn offset by 135° to these. 3. Linear guide according to claim 1, characterized in that the side walls ( 4 , 5 ) are arranged on a linear support ( 6 ), which in turn has on its underside a guide cone ( 2 ) which engages in a corresponding hollow cone of the horizontal support plate ( 7 ) arranged underneath.