EP1366873B1 - Router - Google Patents

Description

The invention relates to a router, on the underside of a copy ring for guiding the router along a Frässchablone is releasably fastened, which has a passage opening for the passage of a extending in the axial direction. formed by the router milling tool. A router of this kind is out for example DE-B-100 2118 known.

Such milling templates usually have a fixing flange to be connected to the router and a copying sleeve of cylindrical shape protruding therefrom in the direction away from the router. In the application, a template corresponding to the milled contour is arranged on the workpiece, on which the copying sleeve is brought laterally into abutment.

Conventional copying rings are screwed to the underside of the router. This is relatively cumbersome and can take an unnecessary amount of time if the required tool has to be searched first.

The present invention is therefore an object of the invention to provide a router of the type mentioned, in which a copy ring can be quickly and easily attach or remove.

This object is achieved in that the copying ring attachable to the router and when mating in the axial direction releasably locked with this.

In this way, the copying ring is simply plugged in and locked it. This assembly is done without tools, so that no screwdriver, wrench or the like. Tools are required.

Advantageous embodiments of the invention are specified in the subclaims.

Fig. 1

die Tischeinheit einer Oberfräse mit zwei hochstehenden Lagersäulen in schematischer Schrägansicht, wobei an den Lagersäulen das nicht dargestellte Maschinenaggregat mit dem Antriebsmotor, dem zugehörigen Getriebe und der Einspannvorrichtung für das Fräswerkzeug höhenverstellbar gelagert ist,

Fig. 2

die Tischeinheit nach Fig. 1 im Querschnitt gemäß der Schnittlinie II-II in vergrößerter Darstellung, wobei der Kopierring an der Oberfräse angeordnet, jedoch nicht verriegelt ist, da sich die beiden Rastelemente in ihrer Lösestellung befinden,

Fig. 3

den in Fig. 2 durch die strichpunktierte Kreislinie angegebenen Ausschnitt in vergrößerter Darstellung, wobei der Kopierring jedoch von der Oberfräse getrennt ist, so dass die Fig. 3 der Situation beispielsweise vor dem Einstecken des Kopierrings entspricht,

Fig. 4

den gleichen Ausschnitt, jedoch mit angestecktem und verrastetem Kopierring,

Fig. 5

wiederum den gleichen Ausschnitt, wobei die gleiche Situation wie in Fig. 2 gezeigt ist, und

Fig. 6

den Kopierring zusammen mit einem an der Oberfräse montierten Justierring (die sonstige Oberfräse ist weggelassen) in schematischer Schrägansicht, wobei die beiden Ringe mit Abstand zueinander dargestellt sind.

Hereinafter, an embodiment of the invention will be described in detail with reference to the drawings. Show it:

Fig. 1

the table unit of a router with two upstanding bearing columns in a schematic oblique view, wherein the bearing columns not shown Machine unit with the drive motor, the associated gear and the clamping device for the milling tool is mounted vertically adjustable,

Fig. 2

the table unit after Fig. 1 in cross-section along the section line II-II in an enlarged view, wherein the copying ring is arranged on the router, but not locked, since the two locking elements are in their release position,

Fig. 3

the in Fig. 2 The section indicated by the dot-dash line in an enlarged view, but the copy ring is separated from the router, so that the Fig. 3 for example, before the insertion of the copy ring,

Fig. 4

the same section, but with an attached and locked copy ring,

Fig. 5

turn the same section, the same situation as in Fig. 2 is shown, and

Fig. 6

the copy ring together with a mounted on the router adjusting ring (the other router is omitted) in a schematic oblique view, wherein the two rings are shown at a distance from each other.

A router has a table unit 1 with a router table 2, which is placed with its bottom 3 on a workpiece to be milled. From the router table 2 are at a distance from each other two bearing pillars 4.5 from above from where an unillustrated machine unit is mounted, which can be adjusted along the bearing columns 4.5 along. The machine unit includes a drive motor, a gear and a clamping device for a in the axial direction 6 (this runs parallel to the bearing columns 4,5) extending milling tool, which is driven when the router is turned to a rotational movement. The milling tool passes through a central opening 7 of the milling table 2 and can be brought by moving the machine unit along the bearing columns 4, 5 in a projecting below the milling table 2 position in which it engages when mounted on a workpiece router on the workpiece. If you move the router over the workpiece, this is processed according to the movement path.

If the milling process takes a certain course, you can move the router along a correspondingly contoured template, which is placed on the workpiece. To do this, place the router with its milling table 2 on the template so that the milling tool passes the template runs to the workpiece.

To guide the router along the template to use a copy ring 8, which is releasably attached to the underside of the router table 2. The copying ring 8 is composed of a fitting in the mounted state on the table top bottom mounting flange 9 and a copy sleeve 10 cylindrical shape, which is centrally located on the mounting flange 9 and in the use position downwards, i. in the direction away from the milling table 2, protrudes. The copying ring 8-forms a through opening 11 arranged in alignment with the central opening 7 of the milling table 2 for the passage of the milling tool. During milling, the copying sleeve 10 is held with its circumference from the side against the template, so that the router follows its contour when moving on the template.

All this corresponds to the usual routers, so that a further description is unnecessary.

Essential in the illustrated arrangement is that the copy ring 8 without tools to the router, i. at the milling table 2, attachable and when mating in the axial direction 6 releasably latched to the router table 2.

Conveniently, the router has on its underside 3 on an adjusting ring 12, the fixed, but in his Position adjustable, attached to the other router table. The fastening of the adjusting ring 12 on the other router table can be done with the help of bolts 13,14 on which either the adjusting ring 12 or the other router table sitting with Justierspiel and with which a firm connection between the adjusting ring and other milling table can be made.

The adjusting ring 12 is factory-positioned in precise position on the router and forms an integral part of this. The copying ring 8 is attached to the adjusting ring 12 and locked with this, so that it is adjusted in the same way as the adjusting ring 12.

If, below, it is said that the copying ring 8 is attached to the router or to its milling table 2, this means in the exemplary embodiment the adjusting ring 12.

For locking the copy ring 8, two identically designed and therefore designated by the same reference numerals latching elements 15 are arranged on the milling table 2, ie the adjusting ring 12, which are movable transversely to the axial direction 6 in the radial direction against a spring force. In this case, the two locking elements 15 are spring-loaded in the direction of their position occupied during latching position. The two locking elements 15 are arranged substantially diametrically opposite each other, so that the copy ring 8 in the milling table 2 parallel position the milling table introduced and put together with this.

Alternatively, it would also be possible to attach the copy ring in an inclined position to another suitable plug and / or latching device on the milling table 2 and then to pivot against the milling table bottom, so that it locks with a detent elements 15 corresponding latching element.

Each locking element 15 is assigned a arranged on the copy ring 8 locking member 16. When mating the copy ring 8 with the router table 2, the locking elements 15 are deflected against it from the colliding copy ring 8 against the said spring force and snap on reaching the end position of the copying ring 8 under the spring force behind the respective associated locking member 16, so that the copying ring 8 in the axial Direction 6 is locked to the milling table 2.

Each latching element 15 is further associated with an actuating device 17, with the aid of which the respective latching element 15 can be transferred against the spring force in his the copying ring 8 again releasing release position. If the latching elements 15 are in their release position, the copying ring 8 can be removed from the milling table 2.

Each latching element 15 is arranged on a pivotally connected to the milling table 2 pivot lever 18, which by the said spring force is loaded and an actuating arm - 19 forms, which can be actuated from the outside. The actuating arm 19 protrudes, in the embodiment above (see Fig. 1 ), from the router table 2 and carries at the end of the actuator 17 forming handle. Upon actuation of the actuating arm 19 or the actuating device 17 against the spring force pivots the respective locking element 15 in its release position.

The respective pivot lever 18 is pivotally mounted on the milling table 2 via a pivot axis. For this purpose, in the embodiment on both sides of the respective pivot lever 18 each have a Schwenkachsteil 20 and 21 from the pivot lever 18, wherein the Schwenkach parts 20 are each mounted in a bearing recess 22 and 23 of the router table 2. The Schwenkachsteile 20,21 can, as in the embodiment, be integrally formed on the pivot lever 18.

The spring force which loads the respective pivoting lever 18 toward the latching position is applied in the exemplary embodiment by two torsion springs 24, 25, which are each plugged onto one of the pivoting roof parts 20, 21 between the pivot lever 18 and the respectively facing bearing recess 22, 23. The two torsion springs 24,25 may consist of wire-shaped material and have two protruding spring legs 26,27, of which one spring leg 26 on the pivot lever 18 and the other spring leg 27 on the milling table 2 (see Fig. 3 to 5 ) is supported.

It can also be seen from the drawing that the pivoting lever 18, starting from its pivoting axis 20, 21, faces upwards, i. in the direction of the copy ring 8 away extends. In this case, the arrangement is such that the pivot lever 18 is a one-armed lever, so that it is actuated for transferring the respective latching element 15 in the release position radially inward. In the case of two locking elements 15, as they are present in the embodiment, the two pivot lever 18, i. the associated actuators 17, thus pressed towards each other, so that the copy ring 8 can be removed again. Accordingly, the respective locking element 15 is deflected during mating of the copy ring 8 with the router table 2 radially inward and snaps in the inserted end position of the copy ring 8 radially outwardly behind the respective locking member 16th

In the exemplary embodiment, each latching element 15 is formed by a latching projection 28 arranged in the insertion path of the copying ring 8. Further, the respective locking member 16 is formed by a latching portion 29 of the copy ring 8, which limits the latching projection 28 in the latched state receiving recess 30. The latching recess 30 and the latching portion 29 are expediently of a consisting of sheet metal copy ring 8 upstanding Verrastungslasche 31st educated. In this case, the Verrastungslasche 31 from the fastening-gungsflansch 9 of the copy ring 8 can be bent up in one piece.

In Fig. 3 the copy ring 8 is still in the state removed from the milling table 2, and the two pivot levers 18 are pivoted radially outward. Inserting the Verrastungslaschen 31 parallel to the axial direction 6 in the insertion direction 32 (see Figure 3 ) with the milling table 2, the respective Verrastungslasche 31 abuts with its end face against the associated locking projection 28, so that the respective pivot lever 18 performs a deflection movement, in the embodiment radially inward. The locking projection 28 then slides along the latching portion 29 of the respective Verrastungslasche 31 until it reaches the relevant recess 30 and snaps into this ( Fig. 4 ). The release of the lock goes off Fig. 5 in which the relevant pivot lever 18 and thus also the associated latching projection 28 is pivoted so far that the latching projection 28 is located outside the latching recess 30, so that the lock is released and the copy ring 8 can be pulled down towards the bottom.

The respective catch recess 30 has a dimension corresponding to the associated latching projection 28 in the circumferential direction, so that, as it were, a locking also takes place in the circumferential direction.

Furthermore, at the router, ie at the milling table 2 or be arranged on the adjusting ring 12, the copying ring 8 centering centering. These can be formed, for example, by a respective Verrastungslasche 31 associated plug-in slots 33 on the underside of the router, which form a guide for the Verrastungslaschen 31 when they are pushed through the slots 33 to the locking projections 28.

Claims (13)

1. Routing machine, to the underside of which there may be releasably attached a copying ring (8) to guide the routing machine along a milling template and which has a through opening (11) for the passage of a milling tool driven by the routing machine and extending in the axial direction (6), characterised in that the copying ring (8) may be slipped on to the routing machine and, if connected in the axial direction (6), may be releasably engaged with it.
2. Routing machine according to claim 1, characterised in that there is provided on the routing machine at least one snap-in element (15) movable against a spring force at right-angles to the axial direction (6) and which, on attachment of the copying ring (8), is displaced and on reaching the limit position of the copying ring (8) snaps under the spring force behind a snap-in member (16) of the copying ring (8), wherein the snap-in element or elements (15) may be transferred by means of an actuating device (17), against the spring force, into a release position which once again releases the copying ring (8).
3. Routing machine according to claim 2, characterised in that it has at least two substantially diametrically arranged snap-in elements (15), each assigned a snap-in member (16) on the copying ring (8).
4. Routing machine according to claim 2 or 3, characterised in that each snap-in element (15) is mounted on a swivelling lever (18), connected pivotably to the routing machine, which is biased by the spring force and forms an actuating arm (19) operable from the outside, with this actuation swivelling the snap-in element (15) into the release position.
5. Routing machine according to claim 4, characterised in that the swivelling lever (18), from its pivot axis (20, 21), extends upwards away from the copying ring (8).
6. Routing machine according to any of claims 2 to 5, characterised in that the snap-in element or elements (15), on being connected, is/are deflected radially inwards and snapped radially outwards in the limit position of the copying ring (8).
7. Routing machine according to claim 5 and 6, characterised in that the swivelling lever (18) is a single-arm lever so that, to transfer the snap-in element (15) into the release position, the swivelling lever (18) is operated radially inwards.
8. Routing machine according to any of claims 2 to 7, characterised in that the snap-in element or elements (15) is/are formed by a snap-in projection (28) located in the insertion path of the copying ring (8), and the snap-in member or members (16) by a snap-in section (29) of the copying ring (8) which defines a locating recess (30) accommodating the snap-in projection (28) in the engaged state.
9. Routing machine according to claim 8, characterised in that the locating recess (30) and the snap-in section (29) are formed by a locking tab (31) rising vertically from the copying ring (8).
10. Routing machine according to claim 9, characterised in that the locking tab (31) is bent upwards in one piece from a mounting flange (9) of the copying ring (8).
11. Routing machine according to any of claims 8 to 10 characterised in that, in the circumferential direction, the size of the locating recess (30) corresponds to that of the snap-in projection (28).
12. Routing machine available any of claims 1 to 11, characterised in that centring means for centring the copying ring (8) are provided on the routing machine.
13. Routing machine according to any of claims 1 to 12, characterised in that the routing machine has on its underside (3) an adjusting ring (12) for adjusting position, over which the copying ring (8) may be slipped and with which it may be engaged.

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