EP3768477A1

EP3768477A1 - Milling adapter for a workbench

Info

Publication number: EP3768477A1
Application number: EP19711271.7A
Authority: EP
Inventors: Manfred PLÖCKL
Original assignee: Ploeckl & Co Industrieoptik KG GmbH
Current assignee: Ploeckl & Co Industrieoptik KG GmbH
Priority date: 2018-03-21
Filing date: 2019-03-08
Publication date: 2021-01-27
Also published as: AU2019237053A1; US11938578B2; US20210023664A1; CA3091310A1; DE102018106669A1; WO2019179789A1

Abstract

The invention relates to an exchangeable milling adapter (20) for a workbench (60) which comprises a receptacle (21) for a milling cutter (70) and an angle adjuster (22). An angular position (WP1, WP2) of the receptacle (21) in relation to the workbench is adjustable using the angle adjuster (22). The invention also relates to a workbench, a milling unit and the use thereof for adjusting a milling cutter.

Description

Milling adapter for a workbench

The invention relates to a replaceable milling adapter for a workbench, such a workbench and a milling unit and their use for setting a milling.

Milling machines or milling machines are machine tools that remove material from a workpiece by means of a rotating cutting tool. Among other things, milling machines distinguish between stationary milling machines and hand milling machines. While stationary milling machines are available almost exclusively in professional manufacturing and craft shops, hand-held milling machines are often used in smaller workshops by amateur craftsmen. For manual milling machines, only simple guide means, such as a rail for linear guidance, are common. Stationary milling machines, on the other hand, offer a multitude of setting possibilities, including fully automatic control in CNC milling or machining centers for the complete machining of a workpiece.

From field practice milling machines are known, which have a pivotable milling spindle and therefore also referred to as "Schwenkspindelfräsmaschinen". For these highly specialized machines there is usually sufficient space available in professional workshops. However, in restricted conditions, such as prevail in the workshops of do-it-yourselfers, the setting option described above often has to be dispensed with, since for reasons of space it is not possible to purchase a stationary bench-top milling machine.

It is therefore an object of the present invention to provide a space-saving alternative to the stationary Schwenkspindelfräsmaschinen.

This object is achieved by exchangeable milling adapter according to claim 1, a workbench according to claim 12 and a milling unit according to claim 14 and their use for setting a milling machine according to claim 15.

According to the invention, the interchangeable milling adapter for a workbench mentioned at the outset comprises a receptacle for a milling cutter and an angle adjustment. There is one Angle position of the holder in relation to the worktable adjustable using the angle adjustment.

The milling adapter refers to a connecting device between the workbench and the router. He has accordingly to the workbench appropriate means to produce a temporary, preferably positive and / or non-positive connection with the workbench. In this case, "temporary" describes the time of the connection desired by a user.

"Replaceable" or "exchangeable" means that the milling adapter can be replaced as required, for example, with another adapter for another machine tool. In contrast to the known from the practice Schwenkspindel- milling machines milling adapter is not an integral, arranged inside or difficult to reach part of a stationary table milling machine, which is usually changed only for repair purposes. Rather, according to the invention is an easily accessible and comparatively simple - preferably with a few simple steps - from the work table removable bracket for a milling machine. Accordingly, already existing workbenches can advantageously be retrofitted with a milling adapter according to the invention.

The term "receptacle" refers to a holder for the milling cutter in which the milling cutter, in particular a hand milling machine, can be fastened in a form-locking and / or non-positive manner. In principle, therefore, different milling cutters can be connected to the workbench by means of a suitable receptacle with the help of the milling adapter. The receptacle can be designed, for example, as a clamp, peripheral clamp or the like.

In the context of the invention can be used as a router both a hand milling machine, such. As a router or a so-called trimmer, as well as a milling motor or a milling spindle are arranged in the recording. These terms are therefore used largely synonymously in the following.

By means of the angular adjustment, the receptacle is rotatably mounted relative to the work table. It can thus be pivoted or rotated about an axis of rotation of the angular adjustment and positioned at a desired angle to the worktable, in particular to its working surface. That is, by means of a pivot bearing of the angle adjustment can be an angle or adjust an angular position between the recording and the workbench, so that in operation and the router and its tool can be tilted to a corresponding angle and positioned at this angle. The angular position can basically be freely selected in the usual working range.

The workbench mentioned above has a milling adapter according to the invention. As a workbench is to be understood any suitable for the processing of workpieces table or a workbench. It is set up for use with the milling adapter according to the invention or can be rebuilt accordingly. Thus, for example, it has means which are suitable for the milling adapter in order to produce a temporary, preferably positive and / or non-positive connection with the milling adapter. The workbench also preferably includes a tabletop with an upper-side work surface, which also serves as a guide for a workpiece. On the work surface a table stop or milling stop is preferably arranged as an additional guide for the workpiece.

The aforementioned milling unit comprises a workbench according to the invention and a milling cutter which is arranged in the receptacle. The milling cutter may be a separate milling spindle, but depending on the receptacle used, a so-called "trimmer", ie a hand-held hand-held milling machine, or a router, which may have been modified for the mounting, may also be used.

The milling unit described above is used according to the invention for adjusting the milling cutter. In this case, by means of the angular adjustment, preferably in a first step, a desired angular position is set. Subsequently, if necessary, the milling machine can be positioned by means of a milling lift and a linear guide in such a way that during operation a desired area of a workpiece is removed.

Usually, the workpiece is to be machined at one edge for mold attachment at a certain angle, for example in order to join later in this area with other workpieces. Accordingly, it is expedient first of all to set the angle and, following this, to adjust the tool in the directions of translation relative to the workbench in such a way that the desired area is removed during operation when the workpiece is being guided past.

The above-described invention thus essentially offers the same setting possibilities, in particular also for a hand milling machine that is affordable for DIY enthusiasts. such as professional swivel spindle milling machines. In particular, equipment already present in the workshop can be used, which advantageously keeps the acquisition costs low. In addition, the invention requires hardly any additional storage space in addition to the usual workbench and is thus also suitable for limited space.

Further, particularly advantageous refinements and developments of the invention emerge from the dependent claims and the following description, wherein the independent claims of one claim category can also be developed analogously to the dependent claims of another claim category and in particular also individual features of different embodiments new embodiments can be combined.

Preferably, the milling adapter is designed as a table insert for a table opening. Particularly preferably, a base plate of the milling adapter is arranged flush with a working surface of the worktable when used as intended. The table opening refers to a recess in or a breakthrough through the table top of the worktable. The milling adapter can be inserted in it, so that in operation only the tool of the milling machine protrudes upwards through the work surface and over it. The milling adapter is thus advantageously accessible as a table insert, just like the work surface, directly from above. However, it does not affect the use of the work surface, as all its components are arranged flush with or below the work surface.

Preferably, the angular adjustment on a pivot axis, which is arranged in operation below a table top of the worktable. In this case, "on the underside" means that the swivel axis is arranged on one side of one of the table top, which is opposite the upper-side work surface on which a workpiece is machined during operation.

The known from practice Schwenkspindelfräsmaschinen usually complicated mechanisms are used to keep the pivot axis as possible in the plane of the work surface and to make the setting as comfortable as possible. However, the departure from this concept according to the invention makes it possible to make the pivoting mechanism advantageously simple and inexpensive, as will be explained in more detail below. The milling adapter preferably comprises a base plate in which a slot is arranged. During operation, the tool protrudes slightly beyond the working surface through the slot in order to come into contact with the workpiece and to remove the desired area of the workpiece.

In a tilted angular position of the tool, generally in the plane of the work surface, a longer range extending perpendicular to the axis of rotation of the angular displacement is occupied by the tool than in an angular position in which the tool is perpendicular to the work surface of the work table. In this area, the slot extends with its longitudinal direction, ie in the direction of its greater extent. At the side of the oblong hole, the workpiece has a support surface in this way, which reaches close to the tool during operation, so that undesired machining and possible risks of accident can be avoided as far as possible by too much play on the workpiece.

Preferably, the milling adapter on a Fräslift for height adjustment. The milling lift comprises, for example, a lift platform, a lift guide and / or a lift drive. The lift guide can be designed, for example, as a linear guide and in particular as a cylinder guide. It connects the lift platform with the base plate of the router adapter in such a way that the lift platform can only be moved in one direction perpendicular to the working surface of the worktable. For example, the angle adjustment and / or the receptacle for the milling machine are arranged on the lift platform. The lift drive can be designed, for example, as a lifting spindle, which is freely rotatably mounted in the base plate of the milling adapter and engages in a corresponding thread arranged on the lift platform. Upon rotation of the lifting spindle, the lift platform is moved away from or away from the base plate of the milling adapter, depending on the direction of rotation.

The milling lift is particularly preferably operated from the top of the table. To operate the Fräslifts a set screw in the base of the Fräsadapters example, can be arranged which can be actuated by means of an Allen ^® -Schlüssels, Torx ^® -Schlüssels or derglei- chen. The screw is connected, for example, to the lifting spindle of the milling lift, which is rotated when the screw is actuated.

Preferably, the angular adjustment on a Winkelarretierung. The Winkelarretie- tion is a blocking element, with the angle adjustment in the desired, before adjusted position is held. This can for example be achieved in that the blocking element in defined angular positions, for. B. in 1 ° - or 5 ° steps or at the latching points described later, positively cooperates with a rotatable element of the receptacle and tion tion prevents further rotation movement.

Particularly preferably, the angle lock comprises at least one eccentric clamp, which acts non-positively on a rotatable element of the receptacle. Ie. The applied contact pressure prevents a further rotational movement of the angle adjustment. As a result, any desired angular positions can advantageously be adjusted continuously.

The angle adjustment preferably has at least one latching point in a predefined angular position. The detent points are particularly preferably "soft" detent points. That the locking points preferably do not give a compelling position, but only help to find the frequently used, predefined angular positions as simple as possible and set exactly. This can be realized, for example, by virtue of the fact that a rotatable element of the angular adjustment at the defined angular positions in each case has a latching bore into which a pretensioned pressure pin engages with a ball tip. For this purpose, the pressure pin can be pretensioned by means of a spring, for example.

The ball tip prevents a "hard" detent so that any angular position around the detent points can still be adjusted. The predefined angular positions are particularly preferably arranged in the 15 °, 22.5 °, 30 ° and / or 45 ° angle.

The angular adjustment preferably comprises an angle indication. The angle display can be designed, for example, as a digital angle display. Alternatively or additionally, it can be designed as a simple scale 5 ° steps between a rotatable element and a rotary bearing of the angle adjustment. With the aid of a vernier, for example a scale with 5 ° graduation on the rotatable element and a scale with 4 ° division on the rotary bearing, the reading accuracy can be increased to 1 °.

As already described above, the pivot axis of the milling adapter is preferably not in the region of the plane of the work surface of the worktable. Nevertheless, the tool of the milling machine can be moved as desired in the area of the work surface relative to the work piece to be machined. piece to be able to position the milling adapter according to the invention preferably comprises a carriage and a linear guide. With the linear guide, the carriage, on which the angle adjustment and the receptacle are arranged, can be positioned in a linear direction. The linear direction extends parallel to a working surface of the worktable and perpendicular to the pivot axis of the angular adjustment. As already explained above, the work surface corresponds to an upper side of the workbench. The linear guide can in principle be designed in the form of rolling and / or plain bearings, as will be explained in more detail later. With the movable slide can thus also position the angle adjustment and the recording in the linear direction, whereby the tool of the milling cutter can be positioned in this direction.

Preferably, the linear guide on a Linearearretierung. As already explained with reference to the angle lock, the linear lock is also a blocking element with which the slide is held in a desired, previously set position of the linear guide. The Linearearretierung preferably comprises at least one Exzenterklemme that creates a positive connection between the carriage and the linear guide. Ie. The applied pressure prevents further movement of the carriage. The carriage is thus continuously locked in any position of the linear guide.

The linear guide preferably comprises a bearing rail and a guide rail. In this case, the bearing rail and the guide rail are parallel and in a plane parallel to the work surface of the worktable, i. H. in the linear direction, arranged. The carriage is thus preferably mounted movably in these two rails. By means of this two-point mounting, a substantially backlash-free positioning is made possible during the locking. The carriage has z. For example, each rail on a foot suitable for the rail, which slide in the respective rail and can optionally be blocked by means of the linear lock in the desired position.

While the bearing rail only serves as an abutment, the guide rail particularly preferably increases the accuracy of the positioning during locking in the form of a force-fit connection with the associated foot of the carriage. For this purpose, the guide rail particularly preferably has a guide groove, for. As a V-groove or the like on. The guide groove automatically guides the corresponding foot of the carriage during the locking process to an exact end position. Preferably, angle adjustment and / or the linear guide comprise an adjustment screw. In the case of the angular adjustment, the adjustment screw is, for example, arranged on a rotatable element and has, for example, a stop on the linear guide. As a result, the free rotation range of the angle adjustment can be limited. Due to the position of the adjustment screw, a zero position or a zero position of the angle adjustment can be set or fixed. This zero position is, for example, in an angular range of -5 ° to + 50 ° in relation to a conventional zero position, that is, for example, a position in which the tool is arranged perpendicular to the work surface.

Similarly, the adjustment screw of the linear guide restricts the free path of the linear guide. For example, it can be arranged on the linear guide in such a way that it forms a stop for the slide. As a result of the position of the adjustment screw, a zero position or a zero position for the carriage in the linear guide can be set or established. This zero position is for example in a range of -10 mm to + 10 mm in relation to a usual Nullposi tion of the carriage in the linear guide.

The workbench preferably has a table top in which the milling adapter, in particular a part of the milling adapter attached to the workbench, is arranged in a form-fitting manner. The positive connection is effected in particular by means of the base plate of the milling adapter, which is preferably used in the table top and is flush with the work surface of the table top of the worktable. As a result, a plane or flat surface for machining a workpiece is produced overall. For this purpose, the tabletop preferably has circumferentially around the table opening a lowered as a step, matching the base plate of the milling adapter area.

Even if the milling adapter is already held in its position essentially by this positive connection or the force of gravity, it can additionally be provided with further fastening means such as, for example, screws, clamps or the like. be secured. This is advantageous in particular during vibrations occurring during operation.

The invention will be explained in more detail below with reference to the accompanying figures with reference to embodiments. The same components are provided with identical reference numbers in the various figures. The figures are usually not to scale. Relative directions such as "bottom", "top", "bottom" or "upper side" in this case relate to a work table set up in accordance with the intended purpose with a milling adapter according to the invention. Show it:

1 is a rough schematic side view of an embodiment of a milling unit according to the invention in a first height position,

Figure 2 is a rough schematic side view of the embodiment of FIG

1 in a second height position,

Figure 3 is a perspective view from above of the embodiment

FIG. 1,

FIG. 4 shows a perspective view of an embodiment of a lift platform in a first angular position,

FIG. 5 is a perspective view of the embodiment of FIG. 4 in a second angular position;

Figure 6 is a plan view of the embodiment of Figure 4 in a first

Angular position and in a first linear position and

Figure 7 is a plan view of the embodiment of Figure 4 in a second

Angular position and in a second linear position.

FIG. 1 shows an example of a milling unit 80 according to the invention in a side view. The milling unit 80 comprises a workbench 60, a milling adapter 20 and a milling cutter 70. The workbench 60 has a flat tabletop 64 with a rectangular base surface which, as is usual with an ordinary table, is arranged horizontally in operation, ie parallel to a substrate. In addition to the elements shown here, the workbench 60 preferably also includes legs or supports in order to ensure a secure footing. The table top has a bottom 65 and opposite an upper side 62, which also forms a work surface 62 for the work table 60. The workbench 60 further comprises a table stop 63, which is also referred to as a milling stop. The table stop 63 comprises two guide plates arranged perpendicular to the working surface 62 (see FIG. 3). At the table stop 63 is in operation on the Working surface 62 resting workpiece (not shown here) led along for processing.

In the table top 64, the milling adapter 20 is fastened by means of a flat base plate 23 (indicated by dashed lines), which will be explained in more detail with reference to FIG. It comprises a milling lift 50 and a lift platform 55, which will be explained in more detail with reference to FIGS. 4 to 7. It extends substantially below the work surface 62. The milling lift 50 comprises a lift guide 51, 52 which comprises two parallel inner cylinders 52 arranged vertically underneath the base plate 23 and two hollow cylinders 51 arranged on the inner cylinders 52. The inner cylinder 52 are fixedly connected to the base plate 23, z. B. welded. The hollow cylinders 51 and the inner cylinders 52 can be displaced relative to one another and form a sliding bearing or a roller bearing. With the hollow cylinders 51, the lift platform 55 is firmly connected, for. B. welded, which is arranged substantially parallel to the working surface 62 of the worktable 60.

The lift lift 50 further comprises a lift drive 53, 54. The lift drive 53, 54 has a lift spindle 53 which is rotatably mounted on the base plate 23, the lift spindle 53 not being movable in the translational degrees of freedom relative to the base plate 23 is. The lifting spindle 53 has an external thread and extends perpendicular to the base plate 23 or parallel to the lift guide 51, 52. On the lift platform 55, an internal thread (not shown here) matching the lifting spindle 53 is arranged and fixedly connected thereto. The lifting spindle 53 engages in the internal thread. By means of a rotation of the lifting spindle 53, a distance of the lift platform 55 to the base plate 23 or to the working surface 62 of the worktable 60 can thus be set. The milling lift 50 thus serves as height adjustment of the milling adapter 20.

About the milling adapter 20, the milling cutter 70 is connected to the work table 60. The milling cutter comprises a milling spindle 71 (or a milling motor) and a milling tool 72 (also referred to below as "tool" in the following). The milling spindle 71 is connected to the tool 72 by means of a tool holder (not shown here).

By means of the milling lift 50 as a height adjustment, a first height position HP1 has been set, in which the tool 72 protrudes beyond the working surface 62 of the worktable 60. When the cutter 70 is put into operation, the tool 72 rotates and removes material from a workpiece, which is guided along the table stop 63. Figure 2 shows the milling unit 80 of Figure 1 in the same view, with the lift platform 55 is here but in a second height position HP2. By means of a Actuate movement of the lifting spindle 53, the lift platform 55 was moved down. The distance of the lift platform 55 to the table top 64 is here larger and the tool 72 of the cutter 70 no longer protrudes beyond the countertop 62 addition.

FIG. 3 shows, by way of example and schematically, the milling unit 80 from FIG. 1 in a perspective plan view. Under the base plate 23 introduced into the table top 64, a table opening 61 is arranged, through which the milling adapter 20 projects with the milling cutter 70 downwards. In this case, the base plate 23 is arranged in the table top 64 in a recess (not shown here) which is lowered as a step and fits into it. Within a plane of the working surface 62, the substantially rectangular base plate 23 is fitted in a form-fitting manner in the table top 64.

The base plate 23 has a base plate opening 44. In addition, an insert plate 35 is positively arranged in a lowered as a stage, matching to her recess (not shown here) in the base plate 23. The shape of the insert plate 35 is basically arbitrary, as long as there is a sufficient fit. For example, the insert plate 35 may have a shape similar to that of a quarter circle protractor, as here. The insert plate 35 is preferably ferromagnetic so that it is attached to the base plate 23 which is provided with holding magnets. In the insert plate 35, a pill-shaped elongated hole 24 is arranged so that in the longitudinal direction, i. extends in the direction of its greatest extent, in the plane of the working surface 62 and in the plane of rotation of the cutter 70. Through the elongated hole 24, the tool 72 of the milling cutter 70 can protrude beyond the work surface 62 for machining a workpiece during operation.

Although the base plate 23 is in principle already held in its position by the positive connection with the table top 64 and gravity, it can additionally be connected to the table top 64 with fastening screws 45 or other suitable fastening means. In addition, a set screw 54 is arranged in the base plate 23. By means of a hexagon socket wrench, the lifting spindle 53 of the milling lift 50 can be actuated by means of a rotation of the adjusting screw 54 and thus the height position of the lift platform shape 55 can be varied or adjusted.

FIGS. 4 to 7 show different views and settings of the lift platform 55. In a representation of the holder, that is to say the connecting means of the lift platform. Form 55 for lift guide 51, 52 and the lift drive in the form of the lifting spindle 53 has been omitted for reasons of clarity.

The lift platform 55 comprises a linear guide 27 and a slide 28 guided therein (see FIG. 4). The linear guide 27 has a substantially U-shaped configured base. In this case, a bearing rail 31 and in the other a guide rail 32 is arranged in one of the two parallel U-legs. Both rails 31, 32 are configured substantially as elongated holes and extend parallel in the direction of the U-legs. This direction is referred to below as the linear direction LR.

The carriage 28 comprises two carriage feet 37, 38, a receptacle 21 and an angle adjustment 22. In each carriage foot 37, 38 a pivot bearing 46, 47 is arranged. In the two coaxial rotary bearings 46, 47, the receptacle 21 for the milling cutter 70 is mounted as a rotatable element with a rotation axis RA. The pivot bearings 46, 47 thus together form the angular adjustment 22 for the receptacle 21st

The guided in the bearing rail 31 Schlittenfuß 38 has a flat, flat base, which fits to a step-like against the surrounding surface lowered portion of the bearing rail 31, which rotates around the slot of the bearing rail 31. The guide rail 32 is initially formed similar to the bearing rail 31, but faces towards its center, i. towards the slot, a further reduction as a guide groove in the form of a V-groove 36. The corresponding Schlittenfuß 37 has a base in which a V-section 39 is formed, this acts as a corresponding spring, thus forming the complement to the V-groove 36 and engages in this.

The carriage 28 can be locked by means of two eccentric clamps 30, which are each associated with one of the carriage feet 37, 38. In order to fix the carriage 28, the eccentric clamp 30, which is assigned to the guide rail 32, is preferably actuated first. Due to the V-groove 36, an automatic self-centering of the carriage 28 takes place. Subsequently, the eccentric clamp 30 is actuated, which is assigned to the bearing rail 31. As a result, the carriage foot 38 of the bearing rail 31 acts as an abutment to the carriage foot 37 of the guide rail 32 and thus provides additional stability of the carriage 28. The eccentric clamps 30 are arranged below the line guide 27 and by means of a bolt (not shown here) in each case the oblong hole of the respective rail 31, 32 is connected to a slide foot 37, 38. When the eccentric clamps 30 are tightened, the respective carriage foot 37, 38 is thus counteracted its rail 31, 32 pressed. This creates a traction that prevents the movement of the carriage 28.

The angle adjustment 22 can be locked by means of an eccentric clamp 26. This acts when tightened, frictionally on the rotatable element, i. the bearing in the pivot bearing 46 portion of the receptacle 21, whereby a rotational movement is prevented.

The receptacle 21 is designed in the manner of a pipe clamp or peripheral clamp and comprises a holding element 40 and a clamping element 41. The holding element 40 has in both directions of the axis of rotation RA end each pins, which in the Drehla- like 46, 47 of the carriage feet 37, 38 are rotatably mounted. In its center, a semi-circular recess is formed, which forms a circular recess 48 together with a corresponding semicircular recess of the clamping element 41. In operation, a milling cutter 70, ie the milling spindle or the milling motor, is clamped in this recess. For this purpose, the holding element 40 and the clamping element 41 are connected to one another by means of clamping screws 42 in such a way that the milling cutter 70 is retained in the recess 48 in a force-fitting manner.

The linear guide 27 has an adjustment screw 34, which projects into the elongated hole of the guide rail 32. With rotation of the adjusting screw 34, a stop position in the linear direction LR for the carriage foot 37 and thus for the carriage 28 can be set in total. This will be explained in more detail with reference to FIGS. 6 and 7.

The angle adjustment 22 has an adjustment screw 33. It is arranged on the retaining element 40 of the receptacle 21 and is consequently rotated with the receptacle. It has a stop on the upper side of the linear guide 27. With rotation of the adjusting screw 33, it is possible to set how far the receptacle 21 can be turned in the angle adjustment 22 until the stop position is reached. FIG. 4 shows the angle adjustment 42 in a first angular position WP1, namely the stop position or the zero position. Another turn in the direction of the stop is no longer possible. In contrast, Figure 5 shows the lift platform of Figure 4 in a second angular position WP2, in which a rotation in both directions is possible.

The angle adjustment 22 also has an angle display 43, which displays the set angle in the manner of a vernier by means of two scales. The vernier is made by placing a scale with 5 ° graduation on the rotatable element and a scale with 4 ° graduation on the pivot bearing. This results in a reading accuracy in the range of 1 °. Figures 6 and 7 show the lift platform of Figure 4 in different positions of the carriage 28 in the linear guide 27. In Figure 6, the carriage 28 is shown in a first linear position LP1, in which it can be moved in and against the linear direction LR. The angle adjustment 22 is here in the first angular position WP1. FIG. 7 shows the carriage 28 in a second linear position LP2 which is in abutment with the adjusting screw 34 and therefore can no longer be moved further in the linear direction LR. This is the stop position or zero position of Schlit least 28 in the linear direction LR. The angle adjustment 22 is here in the second angular position WP2. Overall, the position of the tool 72 can thus be adjusted by means of the angular adjustment 22 in a rotational and by means of the height adjustment 50 and the linear guide 27 in two translational degrees of freedom. The invention thus offers the adjustment possibilities of a professional swivel spindle milling machine. However, it is cheaper and has a much smaller footprint.

It is finally pointed out once again that the device described above in detail is merely an exemplary embodiment which can be modified by the person skilled in the art in various ways without departing from the scope of the invention. Thus, for example, different shapes of the base plate and the insert plate are included and also the receptacle for the milling cutter can be adapted to the cutter accordingly. Furthermore, the use of the indefinite article "on" or "one" does not exclude that the characteristics in question may also be present multiple times. Likewise, the terms "element" and "unit" do not exclude that the component in question consists of several interacting subcomponents, which may possibly also be spatially distributed. LIST OF REFERENCE NUMBERS

20 milling adapter

21 recording

22 angle adjustment

23 base plate

24 slot

27 linear guide

26, 30 Exzenterklemme

28 sleds

31 bearing rail

32 guide rail

33, 34 Adjustment screw

35 insert plate

36 V groove

37, 38 Sledge foot

39 V section

40 retaining element

41 tensioning element

42 clamping screw

43 angle display

44 base plate opening

45 fixing screws 46, 47 pivot bearings

48 recess

50 milling lift

51 hollow cylinder

52 inner cylinder

53 lifting spindle

54 set screw

55 lift platform

60 workbench

61 table opening

62 top, work surface

63 table stop, milling stop

64 table top 65 bottom

70 mill

71 milling spindle

72 milling tool

80 milling unit

HP1 first height position HP2 second height position LP1 first linear position LP2 second linear position LR linear direction

RA rotation axis WP1 first angular position WP2 second angular position

Claims

claims

1. Replaceable milling adapter (20) for a work table (60) comprising

- A receptacle (21) for a milling machine (70) and

- An angular adjustment (22), wherein

an angular position (WP1, WP2) of the receptacle (21) is adjustable relative to the work table using the angular displacement (22).

2. milling adapter according to claim 1, which is designed as a table insert (20) for a table opening (61).

3. Milling adapter according to one of the preceding claims, wherein the angle adjustment

(22) has a pivot axis (RA), which is arranged in operation below a table top of the worktable (60).

4. Milling adapter according to one of the preceding claims, comprising a base plate

(23), in which a slot (24) is arranged.

5. milling adapter according to one of the preceding claims, comprising a Fräslift (50) for height adjustment, which is preferably from a top (62) of the worktable (60) operable.

6. Milling adapter according to one of the preceding claims, wherein the angle adjustment (22) has at least one latching point in a predefined angular position.

7. Milling adapter according to one of the preceding claims, wherein the angle adjustment (22) has a Winkelarretierung, which preferably comprises at least one Exzenterklemme (26).

8. Milling adapter according to one of the preceding claims, comprising a carriage (28) and a linear guide (27), with which the carriage (28) on which the receptacle (21) and the angular displacement (22) arranged in a linear direction (LR ), which extends parallel to a working surface (62) of the worktable (60) and perpendicular to the Schwenkach- se (RA) of the angular adjustment (22).

9. milling adapter according to claim 8, wherein the linear guide (27) has a Linearearretierung, which preferably comprises at least one Exzenterklemme (30).

10. milling adapter according to claim 8 or 9, wherein the linear guide (27) comprises a bearing rail (31) and a, preferably a guide groove (36) having, guide rail (32).

1 1. Milling adapter according to one of the preceding claims, wherein the angle adjustment (22) and / or the linear guide (27) comprise an adjustment screw (33, 34).

12. work table (60) with a milling adapter (20) according to any one of the preceding claims.

13. Work table according to claim 12 with a table top (64) in which the milling adapter (20) is arranged positively.

14. milling unit (80) with a work table (60) according to any one of claims 12 or 13 and a milling cutter (70) which is arranged in the receptacle (21).

15. Use of a milling unit (80) according to claim 14 for adjusting the milling cutter (70), wherein by means of the angular adjustment (22) a desired angular position (WP1, WP2) is adjusted and optionally the milling machine (70) by means of a Fräsliftes (50) and a linear guide (27), is positioned so that in operation a desired area of a workpiece is removed.