ITMI20100376U1 - MACHINE FOR MACHINING OF CASTED OR FUCKED RIMS AND CORRESPONDING PROCEDURE - Google Patents

Description

DESCRIPTION of the industrial utility model entitled:

"MACHINE FOR THE PROCESSING OF CAST OR FORGED RIMS AND CORRESPONDING PROCEDURE"

TEXT OF THE DESCRIPTION

The invention relates to a machine for machining cast or forged rims by turning the inner contour, turning the outer contour and drilling the fixing holes as well as the valve hole extending obliquely with respect to the rim axis,

The invention further relates to a method for machining cast or forged rims by turning an inner contour, turning an outer contour and drilling the fixing holes as well as the valve hole extending obliquely with respect to the rim axis.

A similar machine and a similar process are known for example from US 2006/0048359 A1, where two work areas are provided, executed as separate machines, for drilling on one side and turning on the other side,

The aim of the invention is to shorten the actual manufacturing time for machining wheel rims. According to the invention, in order to achieve the object in a machine of the type mentioned at the beginning, it is provided that a workpiece machining point with a workpiece clamping device and at least one turning tool holder for inner contour turning machining are designed and equipped in such a way that a workpiece machining point is executed and equipped with a workpiece clamping device and at least one turning tool holder for turning the external contour, and that at least one of these workpiece machining points is associated with a drilling tool holder for at least one drill bit, where rim axis and drill bit in position of use for drilling the valve hole are oriented or orientable relative to each other obliquely with respect to the axis of the c wheel rim clamped at the workpiece machining point "

With internal contour we mean at least the surface areas placed inside, to be machined, of the rim approximately in the shape of a cup, which in the position of use are arranged in a vehicle facing the vehicle, while with external contours are meant those surface areas located on the outside, to be machined, of the rim approximately in the shape of a cup, which are arranged not facing or spaced from the inner contour, The outer contour can therefore include the visible side and parts of the rim channel, in particular the edge of the rim from the visible side,

By turning the internal contour are therefore meant those steps of turning that can be performed in a first tightening of the rim, where in this first tightening at least the surface areas located inside, to be machined, of the rim are accessible. approximately cup-shaped Therefore, the inner contour may also include processing areas which in fact lie on the outer side of the cup-shaped rim, which however are accessible in the first tightening.

Turning of the outer contour therefore refers to those turning steps which can be carried out in a second clamping of the rim, where in this second clamping at least the visible side is accessible for the turning machining,

The invention offers the advantage that secondary times which occur due to the disassembly of the rims between individual processing stations are largely avoidable, so that the time actually required for the execution of a rim machining, therefore the sum of pure time processing and secondary interposed times, can be shortened with respect to known machines. The invention offers the further advantage that the machine base surface, necessary for carrying out a complete rim machining cycle, is reduced compared to known machines, since the single machining station is integrated in a machine. Therefore, with the same machine it is possible to carry out a complete machining of the rim from the unmachined cast piece up to the finished shavings machined product on its surfaces.

It can be envisaged that the workpiece clamping device (s) are designed as rim clamping devices, In this case it is advantageous that a low-tension or tension-free clamping of the rims is made possible Here the clamping forces introduced for the clamping on the rims they are metered in such a way that the rim in the clamping is not substantially deformed or not at all. This is particularly important in the case of aluminum rim manufacturing, as unwanted rim imbalances are created due to deformations,

In order to be able to easily remove the chips that accumulate during the turning process, it can be provided that the workpiece clamping device (s) for clamping rims are equipped with the visible side of the rim facing upwards and / or with downward opening of the cup-shaped rim, Therefore it is obtained in a simple way that the chips can freely fall downwards and thus do not scratch and can disturb the rim surfaces manufactured with high quality The first tightening can be foreseen for this purpose in suspended clamping and / or the second clamping can be provided with respect to the first in straight clamping.

A device for cooling the turning operation with cold air may be provided. In this case it is advantageous that the use of cooling liquids can be eliminated and therefore an expensive cleaning of the cooling means, in particular a filtering of the shavings washed together, is not necessary.

In the case of a compact design, in particular a design with as little support surface requirement as possible, provision may be made for the workpiece clamping device (s) and / or the turning tool holder and / or 1 ' at least one drill bit are arranged on a common machine column ..

It can be provided that the workpiece clamping device (s) and / or the turning tool holder and / or the at least one drill bit are arranged in a common machine body, in particular in a common working area to It is also advantageous that the entire rim manufacturing process is simply protected against unauthorized or unwanted external intervention, Here the precision components such as screw drives, glass rulers and slide guides, can be arranged outside the working area encapsulated by the machine body.Therefore, for example, chips or aerosols, respectively cooling substances and lubricants, can neither affect the accuracy over time of the precision components nor the cleanliness of the room floor and air

In one embodiment of the invention, it can be provided that, in the wheel rim processing flow, a reading device is arranged in front of the first workpiece processing point, which is arranged for reading a marking applied to the rims to be machined. The marking can contain, for example, in coded form the machining program envisaged for the rim, In this case the read marking can be used for the preparation of the machine according to the invention, to make it possible in an automated manner an adaptation to the individual machining of the rim. Alternatively or in addition, the marking can be provided for the characterization of an outlet orientation, for example the orientation of the spokes of the rims and / or the orientation of the fixing holes of the rim to be made. The read or identified marking can therefore be used to control a positioning device, placed in front of the first machining point of the piece in the rim processing flow, which is arranged for adjusting an orientation in the predetermined space of the rims to be machined. In this case, it is advantageous that the rims can be brought automatically into a defined orientation and position. must be fixed or adjusted only at the beginning of the rim processing process.

In order to avoid undesired deformation of the rim during turning machining, it can be provided that a turning tool holder for turning the inner contour and an additional turning support for turning the inner contour and / or the outer contour are Arranged for simultaneous turning of the inner contour and / or the outer contour, at several machining points of the rim at one workpiece machining point Preferably, the turning tool holders can be arranged or can be moved in such a way that the machining points of the rim are arranged on opposite sides of a wall of rim material.Therefore it is achieved that the turning support tools can build respectively radially oriented forces, which are opposed to each other and that at least to a large extent they are mutually eliminated, in order to orient Since the drill bit and the rim relative to each other for drilling the oblique valve hole, it can be provided that the workpiece machining point with the drilling tool holder has a device which makes orientation possible between the rim clamped in the workpiece machining point and the drill bit. In this case it is advantageous that valve holes can be drilled with any oblique position, therefore at any angle with respect to the rim axis, preferably the orientation axis is oriented horizontally "

Here the device can have a workpiece clamping device that can be oriented or it can be provided that the device has a drill bit that can be oriented, or with the device clamping devices of workpiece and the drill bit can be equipped in a swiveling manner,

Alternatively, in the case of a relatively simple construction, provision can be made for the drill bit to be fixedly arranged on the drilling tool holder at an angle with reference to the axis of rotation of the workpiece machining point.

According to the invention, it can be provided that the external contour and the internal contour are turned into a machining point of a common piece. separate workpiece machining points are performed with each a workpiece clamping device and each at least one turning and / or drilling tool holder,

If separate workpiece machining points are performed, then provision can be made for the workpiece clamping devices to be arranged for transferring the rims to the correct position. The mutual orientation of the workpiece clamping devices is therefore chosen such that it does not a change of rim orientation between the workpiece clamping devices is necessary, for example by overturning,

For example, it can be provided that the workpiece clamping device for turning the inner contour and the workpiece clamping device for turning the outer contour and / or the visible side grip the rim to be machined from opposite spatial directions. to each other In order to achieve as small a bearing surface as possible, these spatial directions can be selected as vertical spatial directions. In this case it is advantageous that the workpiece clamping devices can be arranged on sides opposite each other with respect to a plane in case of vertical installation of a horizontal plane. This plane can be given by the direction of transport of the rims between the workpiece clamping devices and can be oriented parallel to these. When machining at a workpiece machining point, the workpiece clamping devices can also traverse the imaginary plane here,

It can also be provided that the turning tool holder for turning the internal contour and the turning tool holder for turning the external contour and / or the visible side approach or prepare the respective machining tools from directions spatial opposite each other, preferably vertical, Here too the turning tool supports can be arranged at least in the starting position on opposite sides with reference to an imaginary plane, where the tool supports of turning during the turning machining can also cross this plane,

In one embodiment of the invention it may be provided that a drilling tool support is associated with the two workpiece machining points. In this case it is advantageous that steps of the complete manufacturing process, consisting of turning the inner contour turning machining of the outer contour, drilling of the fixing holes and the valve hole, can be distributed for the respective rim to be finished on the two workpiece machining points, so that the manufacturing times at both points of workpiece fabrication are approximately equal in length, Thus a uniform flow of workpieces through the machine is achievable, substantially without waiting times, For example, the tool holder for drilling a workpiece machining point can be provided for machining fixing holes extending parallel to the rim axis, in particular a test multiple drilling hole for drilling at least two fixing holes simultaneously, and the drilling tool holder of the other workpiece processing point can be provided for drilling the valve hole.

In one embodiment of the invention it can be provided that the device for clamping the workpiece of a workpiece machining point is arranged in an orientable and / or movable manner, in order to pick up the rim to be machined from a loading point and / or to transfer the machined rim. to the workpiece clamping device of the other workpiece machining point or to a deposition point. It is also advantageous that additional machine parts for transporting the wheel rims to and between the workpiece machining points can be eliminated.

It has proved favorable that the drilling tool holder for drilling the valve hole is associated with the workpiece machining point for turning the outer contour,

In order to easily remove waste chips from the rim without damaging the rim surface, it can be provided that the workpiece clamping device from the workpiece machining point for the inner contour turning machining is prepared for suspended clamping of the rim , where the downward facing side of the clamped rim is machinable by turning with at least one turning tool. Therefore, the chips fall by themselves into the rim and can be collected and removed easily.

The workpiece clamping devices may each be arranged on a rotating mandrel.

It is particularly advantageous for the pivotable workpiece clamping device to be arranged fixedly in space with its orientation axis.

For the manufacture of any contours, it can be provided that the workpiece clamping devices are each arranged at least in the direction of the rotation axis of the turning process, preferably in the X and Z direction in a displaceable manner

For the manufacture of complex internal and / or external contours, it can be provided that at least one workpiece machining point has at least two turning tool holders, movable independently of each other or relative to each other, In this case, it is advantageous that in the same turning machining process a turning or drilling tool can be arranged permanently in the space on the turning tool holder, where the associated workpiece clamping device performs the relative movements necessary for the turning tool holder. manufacturing in the X, Z direction and possibly in the Y direction, while a second turning tool, clamped in the other turning tool holder, is dragged with the workpiece clamping device with a drag device, where at this dragging movement a second movement, required for turning with this turning tool, is superimposed in the X, Z direction and possibly Y.

It may be envisaged that for the turning machining of the inner and outer contours a common piece machining point is performed or that two separate piece machining points are carried out, where a piece machining point is set up for the machining of inner contour turning and the other workpiece machining point is set up for outer contour turning

In order to achieve the object, in a method of the type mentioned at the beginning, according to the invention it is provided that the inner contour and / or the outer contour are turned into a machining point of the workpiece, and that at least the valve hole , extending obliquely with respect to the rim axis, is drilled without disassembly on the rim tightened at the workpiece machining point,

In order to drill the obliquely extending valve hole in the clamping of the turning operation, it can be provided that between the turning operation and the drilling of the valve hole, the clamped rim and a drilling tool for the valve hole are oriented relative to the one to the other,

Here it can be provided that the clamped rim, before drilling the valve hole, is oriented in an oblique position which corresponds to the oblique position of the valve hole with reference to the axis of the rim, or it can be foreseen that the drilling tool be oriented. Alternatively, the drilling tool can be oriented in a fixed manner in the desired oblique angle

In one embodiment of the invention it can be provided that the rim for turning the inner contour is clamped in a suspended manner, and that the downward-facing side of the clamped rim, in particular the inner contour or the outer contour, is machined to turning. In this case it is advantageous that chips do not substantially accumulate or do not accumulate completely inside the rim, where they can cause damage to the surface of the rim,

An embodiment of the invention can provide that first of all the internal contour and then the external contour are turned. turning,

It has proved favorable that the fixing holes in suspended clamping are countersunk and / or drilled from below. Here, too, the waste chips can therefore be easily removed and removed.

In one embodiment of the invention, provision can be made for the valve hole to be drilled in conjunction with the turning machining of the outer contour. Therefore, the pivoting movement can be performed after completion of the turning operation.

It can be provided that the fastening holes are drilled and / or countersunk before the turning machining of the outer contour. Therefore, the visible side can be machined after the drilling of the fastening holes.

A uniform load distribution can be achieved when the inner contour and the outer contour are turned in separate workpiece processing points, where the rim is disassembled between the turning operations. performed in the same machining point of the piece without interposed disassembly,

In this case it is particularly favorable when the rim, during disassembly, maintains the orientation in the space of the rim axis

It can be envisaged that the rim between the turning machining steps is transported with a workpiece clamping device, which is associated with one of the two workpiece machining points, from one machining point to the other workpiece machining point. Therefore, additional gripping elements and the like can be spared.

In one embodiment of the invention it can be provided that the inner contour and / or the outer contour are turned in the same clamping, in which the fixing holes are also drilled. In this case it is advantageous that disassembly times can be saved.

The invention is therefore described with the aid of an exemplary embodiment, but is not limited thereto. Further exemplary embodiments result from combinations of single or more characteristics of the claims with each other and / or with single or more characteristics of the example of execution

In partially simplified representation:

Figure 1 shows an axial section of a wheel rim, Figure 2 shows a front view of a machine according to the invention for processing cast or forged wheel rims, and

Figure 3 shows the machine according to Figure 2 in a three-dimensional oblique view,

Figures 2 and 3 show a machine according to the invention, indicated as a whole with 1 in front view and in oblique view, and are described together below,

The machine 1 is designed and foreseen for processing cast or forged wheel rims 2,

Figure 1 shows an axial section of such a rim 2, The rim 2 is made in this case approximately cup-shaped and has an internal contour 3 and an external contour 4., The external contour 4 therefore comprises the side 5 visible and the rim edge 6 and at least pieces of the rim channel 7, The inner contour 3 instead comprises the surface areas, located inside the cup-shaped rim 2 which are turned over when the rim 2 is mounted on one end of a vehicle on this axle end, From the construction point of view and due to the clamping sometimes parts of the rim channel 7 which are arranged close to the edge 8 of the teardrop shape, in the case of processing the inner contour 3 are worked together and then collide with the inner contour 3

As can be seen from Figure 2, the machine 1 has a first workpiece machining point 9, in which a rim 2 can be clamped in a workpiece clamping device 10,

The workpiece clamping devices 10, 14 are generally equipped with clamping fingers in such a way that a low-tension or tension-free rim clamping is made possible "

The workpiece processing point 9 also has at least one turning tool holder 11, on which turning tools 12 can be clamped for the turning operation. of the inner contour 3 of the rim 2.

A second workpiece machining point 13 with a second workpiece clamping device 14 and a second turning tool holder 15 is also formed on the machine 1. The workpiece machining point 13 is designed for turning the outer contour 4 of rim 2,

The turning tool holder 15 also has a tool holder 16 which is more visible in Figure 3, in which a tool 17 is clamped.

The tool holder 16 is therefore also associated with the workpiece machining point 13.

As can be seen from Figure 2, from the transport device extending from left to right of the rim 2, an imaginary horizontal plane is defined through the machine 1 With reference to this imaginary horizontal plane, the workpiece clamping devices 10, 14 are arranged on opposite sides During the machining of the rims 2 the workpiece clamping devices 10, 14 can in any case traverse this imaginary horizontal plane.

Similarly, the turning tool supports 11, 15, 33 are arranged on opposite sides with reference to this horizontal plane and can cross it in the case of a vertical approach movement.

The piece clamping devices 10, 14 then grip the rims 2 from vertical spatial directions opposite to each other. It is therefore possible to transfer the rim 2 to the correct position between the workpiece machining points 9, 13,

Figure 3, and with dashed lines and dots also Figure 2, show the position of use for making the valve hole in the rim 2 with the drill bit 25, where the axis of the rim 18 (compare with Figure 1 ) is oriented obliquely with respect to the axis of the drill bit 25,

For this purpose, the workpiece machining point 13 has a device 19 with which the workpiece clamping device 14 can be oriented from the turning machining position 20 shown with solid lines in Figure 2, to the drilling machining position 21 shown in FIG. Figure 3, which in Figure 2 is indicated by broken lines

In further embodiment examples, the drill bit 25 can be swiveled into either an oblique position or is fixedly mounted in this oblique position and is approached to the rim 2 for drilling machining in the turning machining position 20 "

Therefore, two separate workpiece processing points 9, 13 are formed in the machine 1 according to Figures 2 and 3, which in case of further exemplary embodiments can also be joined to form a common workpiece processing point.

In the machine 1 the turning tool supports 11, 15 are designed as revolvers and can also carry drilling tool supports,

It is envisaged that in the machining point of the piece 9 there is a multiple drilling head, not further shown, which simultaneously perforates the fixing holes of the rim 2 extending axially on the axis of the rim 18 "However, it could also be associated with the point of processing 13.

Therefore, not only turning steps, but also drilling steps can be carried out at the workpiece processing points 9, 13 of the machine 1.

Figure 2 shows a rim 2 in the course of the rim completion machining simultaneously in different machining positions.

It is therefore visible that the workpiece clamping device 10 of the workpiece processing point 9 is arranged in the X direction, i.e. in FIG. 2 in the horizontal direction and parallel to the drawing plane and in the Z direction, i.e. vertically, so that it can be displaced with a cross slide with tool holder turret 22 in such a way that the rim 2 can be housed by a loading point 23 and can be fed to the workpiece machining point 9.

With the workpiece clamping device 10, the rim 2 processed at the workpiece processing point 9 can subsequently be transported to the workpiece processing point 13 and transferred there to the workpiece clamping device 14.

In figure 3 it can be seen that the deposit point 24 for housing the finished machined rims 2 can be moved horizontally, and that the workpiece clamping device 14 is pivotally arranged to transfer the rim 2 to the deposition point 24 .

The turning tool holder 15 of the workpiece machining point 13 is also designed as a revolver and carries not only the drill bit 25 already described, but also turning tools 16, 17. These turning tools 16, 17 are provided for the turning machining of the outer contour 4 of the rim 2 in the clamping at the machining point of the workpiece 13.

For this purpose, the turning tool holder 15 is arranged on a cross slide with tool turret 26 and can be moved in the X and 2 directions,

The workpiece clamping device 10 of the workpiece machining point 9 in which the turning machining of the inner contour of the rim 2 is performed as described is suspended on the cross slide with tool turret 22, whereby it is formed a pickup construction module ,.

Therefore the inner contour 3 of the tightened rim 2 faces downwards and can be turned with the turning tool 12,

During the turning operations at the workpiece machining points 9 respectively 13 the workpiece clamping devices 10 respectively 14 are rotated with rotation spindles 27 respectively 28 around rotation axes 29 respectively 30 "

The rotating spindle 27 can be moved on the cross slide with tool holder turret 22 in the X and Z direction while the rotating spindle 28 is fixed in space in an orientable way around a horizontal rotation axis by means of the device 19, on the machine stator 31.

The workpiece clamping devices 10, 14 and the turning tool holders 11, 15, 33 as well as the workpiece machining points 9, 13 as a whole are arranged respectively executed on a common machine column 31.

The machine 1 with its components is also arranged in a common machine body, not shown in more detail, in an encapsulated, common, sealed working area, while in the case of the workpiece processing point 9 the rotating spindle 27 can be moved with the workpiece clamp 10 in the Z direction, the rotating spindle 28 of the workpiece point 13 during the turning operation remains in the straight turning operation position 20, and the turning tool holder 15 is moved on the cross slide with tool turret 26 for machining the outer contour 4,

In the rim completion machining in the machine 1, therefore, according to Figure 2, the unmachined rim 2 is prepared on the loading point 23, where it is housed with the workpiece clamping device 10 performed in pick-up construction and is fed to the workpiece processing point 9.

Here, in the wheel rim processing flow, therefore in Figure 2 from left to right, placed in front of the first workpiece processing point 9, a positioning device is arranged, not further represented, which is arranged for adjusting an orientation in the predetermined space of the 2 rims to work ,.

This positioning device is controlled by a reading device also arranged at the left end of the machining path, not shown in more detail, which is arranged for reading a marking applied on the rim 2 to be machined "

The read marking can also be used for the automated programming of the machine 1 to the machining program envisaged for the inlet rim 2.

At the machining point of workpiece 9 the clamped rim 2 is rotated with the rotating spindle 27 around its rim axis 18 and turned with the turning tools 12 and further turning tools 32 on its inner contour. the turning tool 12 during the turning operation remains fixed in space and the rotating rim is moved, while the turning tool 32 which is held in a turning tool holder 33, also made as a revolver, is dragged by the transverse slide with tool turret 34 with the movement of the rim 2, where a further movement is superimposed on this dragging movement, which is necessary for the turning operation with the turning tool 32 ..

Here the turning tool holder 11 and the turning tool holder 33 for turning the inner contour 3 are arranged in such a way that uniform turning can be performed at several machining points of the rim, where these points of machining are possible on opposite sides of the wall of material forming the cup wall of the cup-shaped rim.Therefore, the forces introduced by the turning tools 12, 32 radially into the rim 2 for the turning machining can be precisely compensated. to a very large extent or completely avoided an involuntary deformation of the rim 2 during the turning process.

At the end of the turning machining of the inner contour 3 or between two turning machining steps, the turning tool 12 and / or the turning tool 32 is changed, and a drilling tool not further shown is brought into the position of use. , with which the axially extending fixing holes can be drilled in the rim 2

The workpiece clamp 10 then moves upwards in the Z direction and further in the X direction to beyond the rotating spindle 28 and transfers the rim 2 to the workpiece clamp 14 "

After the rim 2 has been thus transferred, the workpiece clamping device 10 moves backwards past the loading plinth 23, to accommodate a subsequent rim 2.

Simultaneously or in conjunction with this, the turning tool holder 15 on the cross slide with tool turret 26 moves to the workpiece machining point 13, in order to process the contour with one turning tool 16, 17 or even several turning tools at the same time. outside 4 of the rim 2

Here the rim 2 is rotated in the workpiece clamp 14 by the rotating spindle 28 about the rotation axis 30.

After the turning machining of the inner contour 3, the rotating spindle 28 stops in a defined position and is oriented by the device 19 by an orientation angle 35 around an orientation axis horizontally from its vertical orientation, in order to assume the oblique position necessary for drilling of the oblique valve hole. In the present embodiment, the orientation angle is 35 °, but other orientation angles are also detectable, for example an orientation angle between 10 ° and 35 ° The respective choice of the orientation angle depends on the inclination of the hole of valve with respect to the rim axis 18.

Then, the drill bit 25 is brought into the machining position and the oblique valve hole is drilled. Subsequently, as can be seen in Figure 3, the deposit point 24 is approached horizontally to the machining point of the piece 13 and the rim 2 is machined. finished is transferred to the depositing point 24, after which the depositing point 24 leaves the workpiece processing point 13 and therefore moves the rim 2 away from the machine 1.

In the machine 1 for machining rims 2 by turning and drilling, it is proposed that the turning of the inner contour 3 is carried out at a workpiece machining point 9, and that the machining is carried out at a workpiece machining point 13 of the external contour 4 of the rim 2 and that at least a drill bit 25 is associated with a workpiece machining point 9, 13 which is designed for drilling a valve hole which extends and is oriented obliquely with respect to the 18 "rim axle

Claims (1)

CLAIMS 1 „Machine (1) for machining cast or forged rims (2) by turning the inner contour (3), turning the outer contour (4) and drilling the fastening holes as well as the obliquely extending valve hole relative to the rim axis (18), characterized in that a workpiece machining point (9, 13) with a workpiece clamping device (10, 14) and at least one turning tool holder ( il, 15, 33) for the turning machining of the inner contour (3), in that a workpiece machining point (9, 13) with a workpiece clamping device (10, 14) and at least a turning tool holder (11, 15, 33) for turning the external contour (4) and that at least one of these workpiece machining points (9, 13) is associated with a drill bit (25) , where the rim axis (18) and the drill bit (25) are in the position of use they are oriented or orientated obliquely relative to each other, to make the valve hole, with respect to the axis of the rim (18) of the rim (2) clamped in the workpiece machining point (9, 13) 2, Machine (1) according to claim 1, characterized in that the workpiece clamping device (s) (10, 14) are designed as rim clamping devices, in particular for low-voltage or voltage-free clamping 3 Machine (1) according to claim 1 or 2, characterized in that the workpiece clamping device (s) (10, 14) for clamping rims (2) are designed with opening facing the visible side (5) of the rim (2) and / or facing downwards of the cup-shaped rim (2) 4, Machine (1) according to one of claims 1 to 3, characterized in that a device is provided for cooling the turning operation with cold air. 5, Machine (1) according to one of claims 1 to 4, characterized in that the workpiece clamping device (s) (10, 14) and / or the turning tool holders (11, 15, 33) and / or the at least one drill bit (25) are arranged in a common machine column (31), 6, Machine (1) according to one of claims 1 to 5, characterized in that the workpiece clamping device (s) (10, 14) and / or the turning tool holders (11, 15, 33) and / or the at least one drill bit (25) are arranged in a common machine body, in particular a jointly sealed working area, 7 "Machine (1) according to one of claims 1 to 6, characterized in that a reading device is arranged in the rim processing flow (2) before the first workpiece processing point (9, 13) designed for reading a marking applied to the rims (2) to be machined. Machine (1) according to one of claims 1 to 7, characterized in that a positioning device is arranged in the rim processing flow (2) before the first workpiece processing point (9, 13), which is arranged for the adjustment of an orientation in the predetermined space of the rims (2) to be machined 9 "Machine (1) according to one of claims 1 to 8, characterized in that a turning tool holder (11, 15, 33) for turning the inner contour (3) and an additional tool holder of turning (11, 15, 33) for turning the inner contour (3) and / or the outer contour (4) for the simultaneous turning of the inner contour (3) and / or the outer contour (4) are arranged at several processing points of the rim (2) in particular at processing points, arranged on opposite sides of an imaginary rim wall (2) at a workpiece processing point (9, 13). 10, Machine (1) according to one of the claims 1 to 9, characterized in that the workpiece machining point (9, 13) has a device (19) with the drill bit (25) which makes a relative orientation possible , preferably around a horizontal axis between the rim (2) clamped at the workpiece machining point (9, 13) and the drill bit (25) " 11, Machine (1} according to one of claims 1 to 10, characterized in that the device has an orientable workpiece clamping device (10, 14) and / or an orientable drill bit (17), 12 Machine (1) according to one of claims 1 to 11, characterized in that the drill bit (25) is fixed obliquely with reference to an axis of rotation (29, 30) of the workpiece clamping device (10, 14) " 13, Machine (1) according to one of claims 1 to 12, characterized in that two separate workpiece processing points (9, 13) are performed with each a workpiece clamping device (10, 14) and each at least one turning tool (11, 14, 25, 33) and / or drilling, 14 Machine (1) according to one of claims 1 to 13, characterized in that the workpiece clamping devices (10, 14) are arranged for transferring the rim (2) into the correct position " 15, Machine (1) according to one of claims 1 to 14, characterized in that the workpiece clamping device (10, 14) for turning the inner contour (3) and the workpiece clamping device (10 , 14) for turning the outer contour (4) and / or the visible side (5), they grip the rim to be machined from opposite directions in space, preferably vertical, 16, Machine (1) according to one of claims 1 to 15, characterized in that the turning tool holder (11, 15, 33) for turning the inner contour (3) and the turning tool holder (11, 15, 33 ) for the turning machining of the outer contour (4) and / or of the visible side (5) approach or prepare the respective machining tools from spatially opposite directions to each other, preferably vertical. 17, Machine (1) according to one of claims 1 to 16, characterized in that a drill bit is associated to the two workpiece machining points (9, 13), where the drill bit of a machining point of piece (9, 13) is provided for example for drilling the fixing holes extending parallel to the axis of the rim (18), in particular it has a multiple drilling head, and the drill bit (25) of the other point of workpiece machining (9, 13) is provided for example for drilling the valve hole Machine (1) according to one of claims 1 to 17, characterized in that the workpiece clamping device (10, 14) of a workpiece processing point (9, 13) is arranged in a pivotable and / or movable, to accommodate the rim (2) to be machined from a loading point (23) and / or to transfer the machined rim (2) in the workpiece clamping device (10, 14) to the other workpiece machining point (9 , 13) or to a deposit point (24), 19 "Machine (1) according to one of claims 1 to 18, characterized in that the drill bit (25) for drilling the valve hole is arranged at the workpiece processing point (9, 13) for machining external contour turning (4) 20 „Machine (1) according to one of claims 1 to 19, characterized in that the workpiece clamping device (10, 14) of the workpiece point (9, 13) for turning the inner contour ( 3) is designed for suspended clamping of the rim (2), where the downward side of the clamped rim (2) can be turned with at least one turning tool (12, 25, 32) " Machine (1) according to one of claims 1 to 20, characterized in that the workpiece clamping devices (10, 14) are each arranged on a rotating spindle (27, 28), Machine (1) according to one of claims 1 to 21, characterized in that at least one workpiece clamping device is arranged at least in the direction of the rotation axis (29, 30) of the turning process, preferably in a displaceable manner. direction X and Z „