ES2397585A2 - Machining machining of cast or forged tires and corresponding procedure (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

For the machine (1) for machining rims (2) by turning and drilling machining, it is proposed that in a workpiece machining station (9) the machining of turning the inner contour (3) of the rim is carried out, that in a workpiece machining station (13) a turning machining of the outer contour (4) of said rim (2) is carried out and that at least one workpiece machining station (9, 13) has associated at least one bit (25) that is prepared to drill a valve hole that runs and is oriented obliquely relative to the axis (18) of the rim.

Description

MACHINING MACHINE FOR CASTED OR FORGED RIMS AND

CORRESPONDING PROCEDURE

The invention concerns a machine for machining cast or forged tires by turning machining of the inner contour, turning machining of the outer contour and drilling the fixing holes and the valve hole that runs obliquely with respect to the axis of the tire.

The invention also concerns a machining process of cast or forged tires by turning machining of an inner contour, turning machining of an outer contour and drilling of the fixing holes and the valve hole that runs obliquely with respect to the axis of the tire.

A machine of this class and a procedure of this class are known, for example, from US 2006/0048359 Al, where two work zones are provided as separate machines for drilling, and on the one hand, another, turning.

The invention is based on the problem of shortening the actual finishing time during the machining of the tire.

According to the invention, in order to solve the problem, a machine of workpiece machining position with a workpiece clamping device and at least one turning tool holder for forming a workpiece is provided and prepared. the turning machining of the inner contour, that a workpiece machining post is formed and prepared with a workpiece clamping device and at least one turning toolholder for the turning machining of the outer contour and that is associated with at least one of these workpiece machining posts a drilling tool holder for at least one drill, such that the rim axis and the drill, in the position of use to produce the valve hole,

are oriented or can be oriented relative to each other in an oblique direction with respect to the axis of the rim fastened at the workpiece machining post.

At least one of the internal areas that must be machined on the surface of the tire constructed approximately in the shape of a glass and which, in the position of use in a vehicle, are arranged so that they are turned towards the vehicle, while extending External contour means those external areas that must be machined on the surface of the rim constructed approximately in the form of a vessel and that are arranged so that they are away or distanced from the interior contour. Therefore, the outer contour can encompass the seen side and parts of the throat of the tire, especially the flange of the seen side of the tire.

Therefore, turning machining of the inner contour means turning machining steps that can be performed in a first position of clamping the rim, being accessible in this first clamping position at least the internal areas to be machined in the Surface of the tire constructed approximately in the form of a glass. Accordingly, machining zones that are certainly on the outer side of the vessel-shaped rim, but which are accessible in the first clamping position, can also be counted as an internal contour.

Therefore, turning machining of the outer contour means turning machining steps that can be carried out in a second rim clamping position, being accessible in this second clamping position, for turning machining, at least the side viewed.

The invention offers the advantage that secondary times originating due to the change of tire clamping between different can be avoided to a large extent

machining stations, which can be shortened, in comparison with known machines, the time really necessary for the realization of a mechanization of a tire, that is, the sum of the pure machining time and the interleaved secondary times. The invention offers the additional advantage that, in comparison with known machines, the surface area of the machine that is necessary for the realization of a complete cycle of mechanization of a tire has been reduced, since the different machining stations They are integrated into a machine. Therefore, in the same machine a complete mechanization of a rim can be carried out from the casting without machining to the finished machined product with chip removal on its surfaces.

It may be provided that the workpiece clamping device or devices are constructed as a tire clamping device or devices. It is advantageous in this regard that a fastening of the tires poor in deformation stresses or exempt from these stresses is made possible. In this case, the clamping forces applied to the tires for their attachment are dosed so that the tire is not deformed at all or is not substantially deformed in the clamping position. This is especially important for finishing aluminum wheels, as unwanted imbalances in the tires are created due to deformations.

In order to be able to easily carry out the evacuation of the shavings that occur during the turning machining, it can be provided that the workpiece clamping device or devices are prepared to hold tires with the seen side of the tire facing up and / or with the glass-shaped rim opening facing down. Therefore, it is achieved in a simple way that the chips can be directed freely downwards and, thus, cannot scratch the surfaces of the tire

finished with high quality nor can they disturb the mechanization process. The first holding position may be provided for this in the form of a hanging holding position and / or the second holding position may be provided for this in the form of a vertical supported holding position.

A device for cooling cold air of the turning machining can be provided. It is advantageous in this regard that the use of cooling liquids can be dispensed with and that costly purification of the cooling means is not necessary, especially a filtrate separating the chips carried by said means.

In a compact embodiment, especially an execution with a demand for the smallest possible positioning surface, it may be provided that the workpiece clamping device or devices and / or the turning tool holders and / or the at least one drill bit are arranged in a common machine frame.

It may be provided that the workpiece clamping device or devices and / or the turning tool holders and / or the at least one drill bit are arranged in a common machine housing, especially in a jointly sealed working compartment. It is advantageous in this regard that the entire tire mechanization process is easily protected against unauthorized or unintended intervention from outside. In this case, the precision components, such as spindle drives, glass scales and carriage guides, can be arranged outside the working compartment encapsulated by the machine housing. Thus, for example, shavings or aerosols or coolants and lubricants can not harm the long-term accuracy of the precision components or the ability to clean the floor of the ship and purify the air.

In an example of the invention it may be provided that a reading device that is prepared to read a marking applied on the tires to be machined is placed in front of the first workpiece machining position in front of the first workpiece machining post. . The marking may contain in codified form, for example, the machining program provided for the tire. In this case, the marking read can be used to prepare the machine according to the invention with a view to making automatic adaptation to the individual mechanization of tires possible. Alternatively or additionally, the marking may be provided to identify a starting orientation, for example the alignment of the tire spokes or the orientation of the tire fixing holes to be produced. Therefore, the marking read or identified can be used to activate a positioning mechanism that is placed in front of the first workpiece machining post, considered in the mechanized flow of the tires, and that is prepared to adjust a predetermined spatial orientation of the tires that must be machined. It is advantageous in this regard that the tires can be placed automatically in a defined orientation and position. This is especially advantageous when the transfer between workpiece clamping devices is also carried out in the correct position, so that the orientation has to be fixed or adjusted only at the beginning of the machining of the tire.

In order to avoid unwanted deformations of the rim during turning machining, it may be provided that a turning tool holder for turning machining of the inner contour and another turning tool holder for turning machining of the inner contour and / or of the outer contour are placed in a workstation mechanization post to perform a

Simultaneous turning machining of the inner contour and / or the outer contour at various machining points of the tire. Preferably, the turning tool holders are arranged or can be moved so that the machining points of the tire are located on opposite sides of a wall of the tire material. It is thus achieved that the turning toolholders can each establish radially oriented forces that are directed in opposite directions to one another and that mutually cancel each other out, at least to a very high degree.

In order to orient the drill and the rim one in relation to the other for the drilling of the oblique hole of the valve, it can be provided that the workstation machining position with the turning tool holder has a mechanism that makes possible a relative tilt between the drill bit and the rim fastened in the workstation mechanization post. It is advantageous in this regard that valve holes can be produced with any desired oblique position, that is, at any desired angle with respect to the axis of the tire.

Preferably, the swing arm is oriented horizontally.

In this case, the mechanism may have a tiltable device for securing work pieces or it may be provided that the mechanism has a tiltable drill,

or the workpiece clamping device and the drill can be prepared so that they are tiltable by the effect of said mechanism.

Alternatively, in a relatively simple construction execution it can be provided that the drill bit is fixedly arranged in the drilling tool holder in an oblique position with respect to the axis of rotation of the workpiece machining post.

According to the invention, it can be provided that the outer contour and the inner contour are machined by turning in a common workpiece machining position. To further reduce downtime caused by tool changes, it can be provided that two independent workpiece machining positions are each formed with a workpiece clamping device and with at least one tool holder. turning and / or drilling.

When independent workpiece machining positions are formed, it can then be provided that the workpiece clamping devices are mounted to perform a transfer of the tires in the correct position. Therefore, the mutual alignment of the workpiece clamping devices is chosen so that a change of the tire orientation between the workpiece clamping devices is not necessary, for example a change made by turning.

For example, it may be provided that the workpiece clamping device for turning machining of the inner contour and the workpiece clamping device for turning machining of the outer contour and / or of the side seen grab the rim that It must be machined from opposite directions of space to each other. To achieve the smallest possible positioning surface, these directions of space can be chosen as vertical directions of space. It is advantageous in this respect that the workpiece clamping devices can be placed on mutually opposite sides with respect to a plane, specifically to a horizontal plane in the case of a vertical location. This plane can be defined by the direction of transport of the tire between the workpiece clamping devices and can be oriented parallel to said transport direction. In this case, workpiece clamping devices can also pass through the pla

not imaginary during mechanization in a workstation mechanization post.

It may also be provided that the turning tool holder for turning machining of the inner contour and the turning tool holder for turning machining of the outer contour and / or of the side viewed approximate or provide the respective machining tools from opposite directions of space a to another, preferably vertical. The turning tool holders can also be arranged here, at least in a starting position, on mutually opposite sides with respect to an imaginary plane, the turning tool holders can also pass through this plane during turning machining.

In an example of the invention, it can be provided that each of the two workpiece machining stations has a drilling tool holder associated therewith. It is advantageous in this regard that the steps of the complete finishing process of the respective tire to be produced, consisting of turning mechanization of the inner contour, turning mechanization of the outer contour and drilling of the fixing holes and the valve hole, can be distributed between the two workstation machining positions so that the finishing times in both workpiece machining positions are approximately equal. Therefore, a uniform flow of work pieces through the machine can be achieved, substantially without waiting times. For example, the drilling tool holder of a workpiece machining post can be provided for drilling the fixing holes that run parallel to the axis of the rim, said toolholder being able to present a multi-drilling head especially for simultaneous drilling. of at least two fixing holes, and the drilling tool holder of the other machining position

Workpieces can be provided to drill the valve hole.

In an example of the invention, it may be provided that the workpiece clamping device or a workpiece machining station is mounted in a tiltable and / or movable way to receive the tire to be machined from a loading station and / or transfer the machined tire to the workpiece clamping device or the other workpiece mechanization station or to a collection station. It is advantageous in this regard that additional machine parts can be dispensed with for transporting the tires to the workstation machining stations and between them.

It has proved to be favorable that the drilling tool holder for drilling the valve hole is associated with the workpiece machining post provided for the machining of the external contour turning.

In order to be able to easily remove the waste chips from the tire without damaging the surface of said tire, it can be provided that the workpiece securing device of the workpiece machining post intended for turning machining of the outer contour, be prepared to make a hanging fastening of the tire, being able to mechanize by turning with at least one turning tool the side of the subject tire that looks down. Therefore, the chips fall by themselves from the inside of the tire and can be easily accumulated and removed.

It may be provided that the workpiece clamping devices are each mounted on a rotating spindle.

It is especially favorable that the tiltable device for securing work pieces is mounted with its tilting axis fixed in space.

To finish contours of any kind can be

provided that the workpiece clamping devices are each movable in at least the direction of the turning axis of the turning machining, preferably in the X and z directions.

For the finishing of complex interior and / or exterior contours, it can be provided that at least one workpiece machining station has at least two mobile turning tool holders independently of one another or mobile relative to each other. It is advantageous in this regard that in the same turning machining process a turning or drilling tool can be mounted on a turning tool holder in a fixed position in the space, the corresponding workpiece securing device performing the necessary relative movements for finishing in the X, Z and possibly Y directions, while a second turning tool held in the other turning tool holder is dragged together with the workpiece clamping device by a dragging mechanism, superimposing this movement of dragging a second movement in the directions X, Z and possibly Y that is necessary for the mechanization of turning with this turning tool.

It may be provided that a common workpiece machining post is formed for the machining of turning the inner contour and the outer contour or that two independent workstation machining positions are formed, a workpiece machining post being prepared of work for the mechanization of turning of the inner contour and being prepared the other position of mechanization of pieces of work for the mechanization of turning of the outer contour.

In order to solve the problem, it is provided according to the invention, in a procedure of the class mentioned at the beginning, that the inner contour and / or the outer contour be machined by turning in a machining position of

work pieces and that at least the valve hole that runs in an oblique direction with respect to the e of the tire be drilled without making a change of grip on the tire held in the workpiece machining post.

In order to drill the oblique valve hole in the holding position of the turning machining, it may be provided that the attached tire and a drilling tool for the valve hole are made to swing one relative to another between the turning machining and drilling of the valve hole.

It may be provided in this respect that the subject tire is tilted before drilling the valve hole to an oblique position corresponding to the oblique position of the valve hole with respect to the e of the tire, or it may be provided that it be tilted. the drilling tool. Alternatively, the drilling tool can be fixedly oriented with the desired oblique angle.

In one embodiment of the invention, it may be provided that the tire is held in a hanging form to perform the turning mechanization of the inner contour and that the side of the subject tire facing downward, especially the inner contour or the inner contour, is machined by turning outer contour It is advantageous in this regard that waste chips cannot accumulate at all or substantially inside the tire, where these chips could cause damage to the surface of the tire.

An embodiment of the invention may provide that the inner contour and then the outer contour are machined by first turning. It is advantageous in this regard that in the end the side seen can be machined by subjecting to especially high demands imposed on the quality of the finish.

It has proved favorable that fixed holes

They are countersunk and / or drilled from below in a hanging position. Therefore, waste chips can also be removed and evacuated easily in this case.

In one embodiment of the invention it may be provided that the valve hole is drilled following the turning machining of the outer contour. Therefore, the tilting movement can be performed after the turning machining is completed.

It may be provided that the fixing holes are drilled and / or countersunk before turning machining of the outer contour. Therefore, the side seen can be machined after the fixing holes have been formed.

A uniform working regime can be achieved when the inner contour and the outer contour are machined by turning into independent workpiece machining positions, changing the tire's grip between the turning machining. However, it may be

provided

too that both mechanizations from turning be

perform

in he same Market Stall from mechanization from pieces from

I work without

a change from interleaved support.

It is especially favorable in this regard that the tire retains the spatial orientation of the axle during the change of grip.

It may be provided that, between the turning machining steps, the tire is transported from one workpiece mechanization post to the other workpiece mechanization post with a workpiece securing device or that is associated with one of the two workstation mechanization posts. Therefore, additional and similar clamps can be saved.

In an example of the invention it can be provided that the inner contour and / or the outer contour are machined by turning in the same clamping position in which the fixing holes are also drilled. It is advantageous to

in this respect that you can save change times of your

jetion

The invention is now described with the aid of an exemplary embodiment, but without it being limited to this exemplary embodiment. Other embodiments are obtained by combining some or several characteristics of the claims with each other and / or with some or several characteristics of the embodiment example.

They show in partially simplified representation:

Figure 1, an axial section through a tire,

Figure 2, a front elevation of a machine according to the invention for the machining of cast or forged tires and Figure 3, the machine according to Figure 2 in a three-dimensional perspective view.

Figures 2 and 3 show in front elevation and in perspective view a machine according to the invention, designated in conjunction with 1, and these figures are described together in the following.

Machine 1 is prepared and intended for the mechanization of cast or forged tires 2.

Figure 1 shows an axial section through a rim 2 of this class. The rim 2 is configured here approximately in the form of a vessel and has an inner contour 3 and an outer contour 4 • Therefore, the outer contour 4 comprises the seen side 5 and the flange 6 of the rim, as well as at least parts of the throat 7 of said tire. On the contrary, the inner contour 3 comprises the surface areas that are placed inside the glass 2 in the shape of a vessel and which, during the assembly of the tire 2 on an axle end of a vehicle, are pulled over This shaft end. Conditioned by the finishing technique and the clamping mode, some parts of the throat 7 of the rim, which are arranged near the edge 8 of the vessel shape, are occasionally also machined

during the machining of the inner contour 3 and, therefore, they are added to said inner contour 3.

As can be seen in Figure 2, the machine 1 has a first workpiece machining position 9 in which a tire 2 can be fastened in a workpiece holding device 10.

The workpiece clamping devices 10, 14 are both provided with tightening fingers so that a tire clamp poor in deformation stresses or exempt from these stresses is made possible.

The workpiece machining station 9 also has at least one turning tool holder 11 in which turning tools 12 can be held for turning machining.

The workpiece machining station 9 is prepared and designed for turning mechanization of the inner contour 3 of the rim 2.

In the machine 1 a second workpiece machining post 13 is also formed with a second workpiece securing device 14 and a second turning toolholder 15. The workpiece machining station 13 is prepared for machining of turning the outer contour 4 of the rim 2.

The turning tool holder 15 also has a tool holder 16 that can be seen in more detail in Figure 3 and in which a tool 17 is held.

Therefore, the tool holder 16 is also associated with the workpiece machining position 13.

As can be seen in Figure 2, it is defined by means of the direction of transport of the tire 2, which runs from left to right, an imaginary horizontal plane that passes through the machine 1. Referred to this imaginary horizontal plane, the devices 10 , 14 clamping work pieces are placed on mutually opposite sides. However, the devices 10, 14 for securing parts of

work can cross this imaginary horizontal plane during the mechanization of the tires 2.

Also, the turning tool holders 11, 15, 33 are placed on mutually opposite sides, referred to this horizontal plane, and can pass through it during a vertical approach movement.

Thus, workpiece clamping devices 10, 14 attack the tires 2 from vertical directions of space opposite each other. Thus, a transfer in the correct position of the tire 2 between the workpiece machining positions 9, 13 is made possible.

Figure 3 and also, by dashed lines and dots, Figure 2 shows the use position for producing the valve hole in the tire 2 with the drill 25, the axis 18 of the tire being oriented (see Figure 1) in oblique direction with respect to the axis of the drill 25.

To this end, the workpiece machining position 13 presents a mechanism 19 with which the workpiece securing device 14 can be tilted from the turning machining position 20 shown with continuous lines in Figure 2 to the drilling machining position 21 shown in figure 3 and which has been hinted with dashed lines in figure 2.

In other exemplary embodiments, the drill 25 is in an oblique position or is tiltable until it reaches said position or is fixedly mounted in this oblique position and is driven towards the rim 2 for drilling machining in the turning machining position

twenty.

Therefore, in the machine 1 according to figures 2 and 3 two independent workpiece machining positions 9, 13 are formed which, in other embodiments, can also be combined to form a common workpiece machining position .

In the machine 1 the turning tool holders 11, 15 can be configured in the form of revolvers and can also carry drilling tool holders.

It is envisaged that in the workpiece machining station 9 a multi-drill head, not shown in detail, is placed, which at the same time drills the fixing holes of the rim 2 that run axially with respect to the axis 18 of said tire. However, said head could also be associated with the machining position 13.

Therefore, in machining positions 9, 13 of machine work pieces 1, not only turning machining steps, but also drilling machining steps can be performed each time.

Figure 2 shows a tire 2 simultaneously in different machining positions during the complete machining of said tire.

Therefore, it can be seen that the workpiece clamping device 10 of the workpiece machining station 9 is movably arranged with a carriage 22 of perpendicular movements in the X direction, that is, in Figure 2 in the direction horizontally and parallel to the drawing plane, and in the Z direction, that is, vertically, such that the tire 2 can be received from a loading station 23 and fed to the workpiece machining station 9.

Next, the rim 2 machined at the workpiece machining station 9 can be transported with the workpiece securing device 10 to the workpiece machining station 13 and can be transferred there to the holding device 14 of work pieces.

In Figure 3 it can be seen that the pick-up station 22 intended to receive the finished wheels 2 for machining can be moved horizontally and that the workpiece 14 for securing workpieces is mounted in a tiltable way to transfer the tire 2 to the workstation pick up

24.

The turning tool holder 15 of the workpiece machining station 13 is also configured in the form of 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 mechanization of turning of the outer contour 4 of the rim 2 in the position of subjection of this one in the position 13 of mechanization of pieces of work.

To this end, the turning tool holder 15 is arranged in a carriage 26 of perpendicular movements and can be moved in the X and z directions.

The workpiece clamping device 10 of the workpiece machining station 9, in which, as described, the turning mechanization of the inner contour of the rim 2 is carried out, is mounted hanging on the carriage 22 of perpendicular movements, with which a kind of collecting and distributing construction is formed.

In this way, the inner contour 3 of the clamping rim 2 looks downwards and can be machined by turning with the turning tool 12.

The workpiece clamping devices 10 and 14 are rotated with corresponding rotating spindles 27 and 28 around turning shafts 29 and 30, respectively, during the turning machining carried out in the respective machining parts 9 and 13 of job.

The rotating spindle 27 can be moved in the X and Z directions in the carriage 22 of perpendicular movements, while the rotating spindle 28 is attached to the frame 31 of the machine in a fixed way in the space and tiltable by means of the mechanism 19 around of an axis of

horizontal turn

The workpiece clamping devices 10, 14 and the turning tool holders 11, 15, 33, as well as the assembly of the workpiece machining positions 9, 13 are thus arranged or formed in a common machine frame 31 .

The machine 1 with its components is also arranged in a common machine housing, not shown in more detail, within a jointly sealed working or encapsulated behavior.

While in the workpiece machining station 9 the rotating spindle 27 with the workpiece securing device 10 can be moved in the Z direction, the rotating spindle 28 of the workpiece machining station 13 remains in the vertical position 20 of turning machining during turning machining and turning tool holder 15 is moved in carriage 26 of perpendicular movements to perform machining of the outer contour 4.

Therefore, for the complete mechanization of the tire in the machine 1, the non-mechanized tire 2, according to figure 2, is provided on the loading station 23, where said tire is collected with the workpiece-holding device 10 carried out as a kind of collection and distribution construction and is fed to position 9 of mechanization of work pieces.

In this case, in the machining flow of the tires, that is, in Figure 2 from left to right, a positioning mechanism, not shown in more detail, is mounted in front of the first workpiece machining position 9. It is prepared to adjust a preset spatial orientation of the 2 wheels to be machined.

This positioning mechanism is activated with a reading device, not shown in more detail, which is also arranged at the left end of the machining path and is prepared to read a marking applied on the wheels 2 to be machined.

The marking read can also be used for the automated programming of the machine 1 with the machining program provided for the incoming tire 2.

In the workpiece machining position 9, the clamped tire 2 is rotated with the rotating spindle 27 around the axis 18 of said rim and is machined by turning in its inner contour with the turning tools 12 and other tools of turning 32.

In this case, the turning tool 12 is held fixed in the space during the turning machining and the tire is turned in rotation, while the turning tool 32, which is held in a turning tool holder 33 also configured as a Revolver, is dragged with the movement of the rim 2 by the carriage 34 of perpendicular movements, additionally superimposing to this drag movement a supplementary movement that is necessary for the mechanization of turning with the turning tool 32.

The turning tool holder 11 and the turning tool holder 33 for turning machining of the inner contour 3 are arranged here so that simultaneous turning machining can be performed at several machining points of the tire, these machining points being possible on sides opposite the wall of material that defines the vessel wall of the vessel-shaped rim. Therefore, the forces applied radially by the turning tools 12, 32 on the rim 2 can be accurately compensated for the machining of turning. In this way, unwanted deformation of the rim 2 during turning machining is avoided to a very large degree or completely.

Once the machining of turning of the con

inner lathe 3 or between two turning machining steps the turning tool 12 and / or the turning tool 32 are changed and a drilling tool, not shown in more detail, with which can be drilled is placed in use position on the rim 2 the fixing holes that run in the axial direction.

Next, the workpiece clamping device 10 is moved upwards in the Z direction and also in the X direction until it is on the rotating spindle 28 and then transfers the rim 2 to the work pieces holding device 14.

Once the tire 2 has been transferred in this way, the workpiece securing device 10 returns again to the loading station 23 to pick up a next tire 2.

Simultaneously with this or following it, the turning tool holder 15 moves in the carriage 26 of perpendicular movements to the workstation 13 for machining workpieces at the same time machining the outer contour 4 of the rim 2 with a turning tool 16, 17 or with several of these turning tools.

In this case, the rim 2 is rotated in the device 14 for securing work pieces around the axis of rotation 30 by means of the rotating spindle 28.

After the turning machining of the inner contour 3, the rotating spindle 28 is stopped in a defined position and, by means of the mechanism 19, a tilting angle 35 is tilted around a horizontal tilting axis from its vertical orientation position so that said spindle occupies the oblique position necessary for drilling the oblique valve hole. In the present embodiment, the tilting angle amounts to 35 °, but other tilting angles are also adjustable, for example a tilting angle comprising

between 10o and 35o. The respective choice of the tilt angle depends on the inclination of the valve hole with respect to the axis 18 of the tire.

The drill bit 25 is now placed in the machining position and the oblique valve hole is drilled.

Then, as can be seen in FIG. 3, the collection station 24 is approached horizontally to the workpiece machining position 13 and the finished machining wheel 2 is transferred to said post

10 collection 24, after which the collection station 24 leaves the workstation 13 for machining work pieces and, therefore, removes the tire 2 from the machine 1.

It is proposed for the machine 1 of mechanization of tires 2 by mechanization of turning and drilling that in a position 15 9 of mechanization of work pieces the mechanization of turning of the inner contour 3 is carried out, that in a position 13 of mechanization of parts of work a mechanization of turning of the outer contour 4 of the rim 2 and that at least one position 9, 13 of mechanization of parts of

20 work has associated at least one drill 25 that is prepared to drill a valve hole that runs and is oriented obliquely with respect to the axis 18 of the tire.

Claims (20)

1. -Machine (1) for machining cast or forged tires (2) by turning machining of the inner contour (3), turning machining of the outer contour (4) And drilling of the fixing holes and the valve hole that runs obliquely with respect to the e (18) of the rim, characterized in that a workstation (9, 13) for machining work pieces is formed and prepared with a device (10, 14) for securing work pieces and at least one turning tool holder (11, 15, 33) for the machining of turning the inner contour (3), because a post (9) is formed and prepared , 13) workpiece mechanization with a workpiece clamping device (10, 14) and at least one turning toolholder (11, 15, 33) for the machining of external contour turning (4), and because at least one of these workpiece machining positions (9, 13) is associated with at least one drill (25), such that, in the position of use to produce the valve hole, the shaft (18 ) of the rim and the drill (25) are oriented or can be oriented relative to or It is in an oblique direction with respect to the axle (18) of the rim (2) held in the work place (9, 13). 2. Machine (1) according to claim 1, characterized in that the workpiece clamping device or devices (10, 14) are conceived as a tire clamping device or devices, especially for performing a clamp poor in tension of deformation or exempt from this stress. 3. Machine (1) according to claim 1 or 2, characterized in that the device or devices (10, 14) for securing work pieces are prepared to fasten tires (2) with the visible side (5) of the rim (2) facing up and / or with the rim opening (2) shaped like a glass facing down. 4. Machine (1) according to any of claims 1 to 3, characterized in that a device for cooling the turning machining with cold air is provided. 5. Machine (1) according to any of claims 1 to 4, characterized in that the device or devices (10, 14) for holding work pieces and / or turning tool holders (11, 15, 33) and / or the at least one drill bit (25) is mounted on a common machine frame (31). 6. Machine (1) according to any one of claims 1 to 5, characterized in that the device or devices (10, 14) for holding work pieces and / or turning tool holders (11, 15, 33) and / or The at least one drill (25) is mounted in a common machine housing, especially in a jointly sealed work compartment. 7. Machine (1) according to any one of claims 1 to 6, characterized in that in the machining flow of the tires (2) it is placed in front of the first position (9, 13) of workpiece mechanization a reading device that is prepared to read a marking applied on the tires (2) to be machined. 8. Machine (1) according to any one of claims 1 to 7, characterized in that in the machining flow of the tires (2) it is placed in front of the first position (9, 13) of workpiece mechanization a positioning mechanism that is prepared to adjust a preset spatial orientation of the tires (2) to be machined. 9. Machine (1) according to any one of claims 1 to 8, characterized in that a turning toolholder (11, 15, 33) for the machining of turning of the inner contour (3) and another turning toolholder (11, 15, 33) for the machining of turning the inner contour (3) and / or the outer contour (4) are mounted on a

post (9, 13) of mechanization of work pieces for

perform simultaneous turning machining of the contor

not inside (3) and / or outside contour (4) in several points

tire machining cough (2), especially in pun

5

machining coughs located on opposite sides of a wall

of the tire material (2).

10.-Machine (1) according to any of the claims

nes 1 to 9, characterized in that the position (9, 13) of mechani

The work piece with the drill bit (25) has a

the

mechanism (19) that makes relative tilt possible,

preferably around a horizontal axis, between the

drill bit (25) and the rim (2) held in the position (9, 13) of

mechanization of work pieces.

11.-Machine (1) according to any of the claims

fifteen

nes 1 to the, characterized in that the mechanism has a

tilting device (la, 14) for securing parts of

work and / or a tiltable drill bit (17).

12.-Machine (1) according to any of the claims

nes 1 to 11, characterized in that the drill bit (25) is fixed

twenty

arranged in an oblique position with respect to an axis

of rotation (29, 30) of the device (la, 14) for holding

work pieces.

13.-Machine (1) according to any of the claims

nes 1 to 12, characterized in that two posts are formed

25

Independent (9, 13) work piece mechanization

with a respective device (la, 14) for holding parts

working and at least one respective turning tool

and / or drilling (11, 14, 25, 33).

14.-Machine (1) according to any of the claims

30

nes 1 to 13, characterized in that the devices (la, 14)

Clamping work pieces are designed to rea

Make a transfer of the tire (2) in the correct position

ta.

15.-Machine (1) according to any of the claims

35

nes 1 to 14, characterized in that the device (la, 14) of

clamping of workpieces for the mechanization of turning of the inner contour (3) and the device (10, 14) of clamping of workpieces for the mechanization of turning of the outer contour (4) and / or the Seen side (5) grab the tire that must be machined from opposite directions of space to one another, preferably vertical. 16.-Machine (1) according to any of the claims

nes

one to fifteen, characterized why he tool holders from

turning

(eleven, fifteen, 33) for the mechanization from  turning of the

contour

inside (3) Y he tool holders from turning

(eleven,

fifteen, 33) for the mechanization from turning of the contour

Exterior

(4) and / or of seen side (5) approximate or provide

the respective machining tools from opposite directions of space to one another, preferably vertical. 17. Machine (1) according to any one of claims 1 to 16, characterized in that the two workpiece machining positions (9, 13) each have a drill associated therewith, the drill of a job being provided (9, 13) of mechanization of workpieces, for example, for drilling the fixing holes that run in a direction parallel to the axis (18) of the rim, said drill bit having a specially designed multi-drill head, for which purpose the drill bit (25) from the other workstation (9, 13) for machining work pieces, for example, for drilling the valve hole. 18. Machine (1) according to any one of claims 1 to 17, characterized in that the workpiece clamping device (10, 14) of a workpiece machining position (9, 13) is arranged in a tiltable manner and / or scrollable to receive from a loading position (23) the tire (2) to be machined and / or to transfer the mechanized tire (2) to the workpiece clamping device (10, 14) of the other position (9, 13) for workpiece mechanization or to a collection station (24). 19. Machine (1) according to any one of claims 1 to 18, characterized in that the drill bit (25) for drilling the valve hole is mounted in the workpiece machining station (9, 13) intended to be made the 5 machining of external contour turning (4). 20. Machine (1) according to any one of claims 1 to 19, characterized in that the workpiece clamping device (10, 14) of the workpiece machining position (9, 13) intended to perform the machining The turning contour of the inner contour (3) is prepared to make a hanging clamp of the rim (2), while the side of the clamped tire (2) facing down can be machined by turning with at least one tool turning (12, 25, 32). 21. Machine (1) according to any of claims 1 to 20, characterized in that the workpiece clamping devices (10, 14) are each mounted on a rotating spindle (27, 28). 22.-Machine (1) according to any of the claims 20 nes 1 to 21, characterized in that at least one workpiece clamping device is arranged displaceably at least in the direction of the rotation axis (29, 30) of the turning machining, preferably in the X and z directions .   / .t r  Fig. 1