Honing machine and a method for performing honing operations on orthogonally aligned holes in a workpiece

Abstract

Honing machine (10) for performing honing operations on orthogonally aligned holes in a workpiece (12), comprising: a machine base (14); at least one machine-internal transport system (16) arranged on the machine base (14), which comprises a turntable (18) which is rotatable about a vertical turntable axis (20) and has a plurality of workpiece holders (22) which are arranged offset from one another in the circumferential direction at a radial distance from the turntable axis (20) in such a way that a workpiece (12) held in a workpiece holder (22) can be transported one after the other along a circular path by rotating the turntable (18) and can be fed to different work stations of the honing machine (10); wherein at least one of the work stations is a vertical honing station having at least one vertical honing unit which has a honing spindle which is designed for honing a bore aligned along a vertical direction by means of a relative movement between the workpiece (12) and the honing spindle which rotates about a spindle axis and translates along the spindle axis, the spindle axis being aligned parallel to the turntable axis (20); wherein one of the work stations is a horizontal honing station (24) having at least one horizontal honing unit (26) having a honing spindle (28) designed for honing a bore aligned along a horizontal direction by means of a relative movement between the workpiece (12) and said honing spindle (28) rotating about a horizontal spindle axis (30) and translating along the horizontal spindle axis (30), characterized in that the honing machine (10) has an actuator unit (32) which is arranged and designed to move the workpiece (12) during the honing process in order to carry out the honing process in the horizontal honing station (24).

Description

The invention relates to a honing machine for carrying out honing operations on bores in a workpiece aligned orthogonally to one another, in particular for honing cylinder bores and a bearing gate bore in a cylinder crankcase, having the features of the preamble of claim 1, a honing machine having the features of the preamble of claim 2 and a method for carrying out honing operations on bores in a workpiece aligned orthogonally to one another, in particular for honing cylinder bores and a bearing gate bore in a cylinder crankcase, having the features of the preamble of claim 8, a method having the features of the preamble of claim 9.The cylinder crankcase, which is often also referred to as a "crankcase" or "engine block", is an essential component of internal combustion engines or internal combustion engines, as are used, for example, in passenger cars or trucks, aircraft, ships or stationary installations. The most widely used construction is multi-cylinder engines, the pistons of which are connected to the rotating crankshaft via connecting rods, which forwards the force generated by the engine to wheels, ship's screws, propellers, generators or the like.The cylinder crankcase is an example of a workpiece with holes oriented orthogonally to one another.Within the engine block, a plurality of cylinder bores are disposed in a straight row adjacent to one another. The crankshaft is located in inline or V-engines below, between the cylinders in a boxer engine, and is supported on the cylinder crankcase in the bearing points of the crankshaft bearing bore. The bearing points are generally designed as slide bearings, optionally also as rolling bearings. In order to ensure high rotational runout of the crankshaft and thus to minimize undesirable wear phenomena and oscillations during operation, the crankshaft must meet high dimensional tolerance requirements. The bearing points are also closely tolerated with regard to their size and position in the cylinder crankcase.The relatively close tolerances of the key parts of an internal combustion engine and a cylinder crankcase result from the complex functions of these parts. The shape, the dimension and the surface topography of the cylinder bore thereby decisively determine the wear, the friction, the oil consumption and the emission values of the internal combustion engine and, as a result of the friction, also the power and the efficiency. The compressed combustion chamber volume primarily determines the compression of the engine. This has effects on the power and, as a result of the combustion profile, also influence on the emission values and on engine noise.The exact position of the crankshaft relative to the pistons or cylinder bores is important, among other things, for reducing wear on the highly loaded engine parts. These are in particular piston / piston pins, connecting rods and bearings of the connecting rod on the crankshaft and also the bearing of the crankshaft in the cylinder crankcase. In the position of the bore axis, not only the absolute position in space but also its angular position or orientation plays a role. For example, in manual transmissions with clutch, the crankshaft and the input shaft of the transmission run together. Therefore, here, exact coaxiality of the two shafts is decisive for a long service life.DE 10 2016 201 456 A1 and DE 10 2016 221 777 A1 each describe a honing machine having features of the preamble of claim 1.The object of the present invention is to provide a honing machine and a method for carrying out honing operations on holes in a workpiece aligned orthogonally to one another, such as the cylinder crankcase described at the beginning, wherein the holes in a workpiece can be completely machined by honing in a safe process with high precision within a short total machining time.This object is achieved by a honing machine for carrying out honing operations on holes in a workpiece oriented orthogonally to one another, wherein the honing machine comprises:A machine base and an in-machine transport system arranged on the machine base.The transport system includes a turntable that is rotatable about a vertical turntable axis. The rotary table has a plurality of workpiece receptacles. The workpiece holders are arranged offset from one another in the circumferential direction at a radial distance from the rotary table axis in such a way that a workpiece held in a workpiece holder can be transported successively along a circular path by rotating the rotary table and can be fed to different work stations of the honing machine. In other words, the rotary table moves workpieces along a circular path from work station to work station. The transport system allows rapid transport of the workpieces between the different work stations. The rotary table can be designed as a lifting rotary table. The rotary table or the plate of the rotary table can be round but also have a different geometric shape, for example triangular or square.By means of the transport system internal to the machine and in particular the rotary table, it is possible, for example, to make do with a single loading station for loading and unloading the workpiece receptacle. In contrast to transport machines, it is thus possible for the workpieces to leave the honing machine at the same point at which they were fed to the honing machine. This facilitates loading and unloading and in particular also the coupling of the honing machine to an external conveying system. With the aid of an external conveying system, the honing machine can be linked, if required, to other honing machines and / or to other processing machines in order to form a production plant.At least one of the work stations is a vertical honing station which has at least one vertical honing unit. The vertical honing unit has a honing spindle with a honing tool, wherein the spindle axis is oriented parallel to the rotary table axis. Honing machining of a bore aligned in the vertical direction takes place by means of a relative movement between the workpiece and the honing spindle or honing tool rotating about a spindle axis and translatory along the spindle axis. This relative movement is typically carried out in an oscillating manner. The spindle is thus typically rotated in the bore and moved back and forth along the bore axis.A further work station is a horizontal honing station which has at least one horizontal honing unit. The horizontal honing unit has a honing spindle with a honing tool. Honing machining of a bore aligned in the horizontal direction takes place by means of a relative movement between the workpiece and the honing spindle or honing tool rotating about a horizontal spindle axis and translatory along the horizontal spindle axis. This relative movement is typically carried out in an oscillating manner. The spindle is thus typically rotated in the bore and moved back and forth along the bore axis. When honing the horizontally arranged bore, however, it can also be provided that the honing tool is rotated and is moved into and out of the bore once again in translation. Typically, honing stones of the tool are set to an oversized dimension, i.e. to a machining diameter which is slightly larger than the diameter of the bore to be machined.The honing machine further comprises an actuator unit. This is designed and arranged in such a way that the actuator unit moves the workpiece in the horizontal honing station for carrying out the honing machining.In this case, the honing spindle of the horizontal honing unit can be arranged immovably in the honing machine, in particular during the execution of the honing machining. However, it is also conceivable that during the execution of the honing machining, in addition to the movement of the workpiece, the honing spindle of the horizontal honing unit also moves, in particular in the opposite direction, in the above-described relative movement between the workpiece and the honing spindle.By moving the workpiece by means of the actuator unit, the movement of the horizontal honing unit can be reduced or, with the horizontal honing unit fixed, can only be limited to the rotation of the honing spindle. This increases the precision with which the honing spindle or the honing tool can be used during the honing machining. A more precise overall result of the honing operation is the result.Furthermore, the object to be achieved is achieved by a honing machine having the features of the preamble of claim 1, in particular having the features of claim 1, wherein the machine-internal transport system is designed in such a way that the workpiece is moved by the rotary table in order to carry out the honing machining in the horizontal honing station. In this case, the honing process takes place outside the rotary table. The workpiece is transported in particular outside the circular path on which the rotary table moves the workpieces. It is conceivable that the workpiece is rotated and aligned outside the rotary table. In this case, a device for moving the workpiece from the rotary table is typically provided, which device also moves the workpiece back onto the rotary table. During the movement from the rotary table, the workpiece does not leave the honing machine. Typically, although the machining takes place outside the rotary table, it takes place on the same machine base on which the rotary table is also arranged.Because the honing process takes place outside the rotary table, a transmission of undesired vibrations and oscillations caused by the honing process to the rotary table is prevented or at least minimized. Other workpieces located on the turntable are thus likewise decoupled from these vibrations or oscillations. This results in an increase in the precision of the machining of the workpieces at the other work stations.Furthermore, the object to be achieved is achieved by a honing machine having the features of the preamble of claim 1, in particular having the features of claim 1 or claim 2, wherein the horizontal spindle axis extends along a machining direction. The translatory relative movement during honing is also carried out along an axis predetermined by the machining direction. In this case, the machining direction runs parallel to a direction extending radially through the rotary table axis, but at a distance from the rotary table axis. In other words, the machining direction runs along a straight line that does not run through the turntable center point.As a result, the horizontal honing unit can be arranged and aligned more flexibly on the honing machine. For example, a plurality of, in particular two, horizontal honing units can also be arranged next to one another and / or parallel to one another on the honing machine. An acceleration of the overall process results.Furthermore, the object to be achieved is achieved by a honing machine having the features of the preamble of claim 1, in particular having the features of claim 1, claim 2 or claim 3, wherein the horizontal honing station has a workpiece receptacle which comprises a rotation device having an axis of rotation which runs parallel to the rotary table axis, with which device the orientation of the workpiece can be changed. Thus, the honing processing can take place in the horizontal honing station in a different orientation than in the vertical honing station.As a result, the horizontal honing unit can be arranged and aligned more flexibly on the honing machine. In the case of a fixed workpiece or a workpiece which is arranged fixed on the rotary table and has a fixed orientation, the position and orientation of the horizontal honing unit would be predefined by the orientation or orientation of the workpiece.According to an advantageous embodiment of the honing machines claimed, all the work stations of the respective honing machine are arranged on a common machine base. By arranging the rotary table and at least one of all the work stations on the machine basis, the compactness and cycle speed of the honing machine is increased.According to a further advantageous embodiment of the honing machine as claimed, the honing machine has at least two vertical honing stations. At least one vertical honing station has a vertical honing unit which is arranged on a portal-like carrier such that it can be moved by means of slides. All vertical honing units can also be arranged movably on the portal-like carrier by means of slides. By using a plurality of vertical honing stations and / or vertical honing units, a simultaneous machining of a plurality of holes oriented in the vertical direction is possible. It is also conceivable that a vertical honing station has a plurality of vertical honing units, so that honing operations can be carried out simultaneously on a workpiece located in a vertical honing station on a plurality of holes oriented in the vertical direction. Accordingly, honing operations can also be carried out simultaneously on different workpieces located in different vertical honing stations on a plurality of holes oriented in the vertical direction. By performing multiple honing operations simultaneously, the overall machining time of the honing machine is reduced.At least one of the work stations may also be an empty station or may be a work station for performing other processing operations, such as chamfering.According to a further advantageous embodiment of the honing machine as claimed, the honing machine has four work stations. The first work station is designed as a loading and unloading station. Here, a workpiece to be machined is placed on the turntable or a machined workpiece is removed from the turntable.A second work station is designed as a first vertical honing station. This can be used in particular for pre-honing.A third work station is designed as a horizontal honing station. Here, the horizontal honing operations are performed.A fourth work station is formed by the one second vertical honing station. This can be used in particular for finish honing.The transport direction of the rotary table is from the first through the second or the third to the fourth work station. After passing through the fourth work station, the workpiece is transported back to the first work station. This number of work stations and their respective configuration, namely, a loading / unloading station, two vertical honing stations, a horizontal honing station, optimizes the total processing time of the workpieces on the one hand by as many simultaneous operations as possible and enables a honing machine which is as compact as possible on the other hand and operates precisely. In particular, such a division can advantageously integrate the movement or pivoting of the workpiece in the horizontal honing station into the working cycle. The same applies to the acceleration of the workpiece when it is moved.Furthermore, the object to be achieved is achieved by the method according to the invention for carrying out honing operations on holes in a workpiece aligned orthogonally to one another, having the features of claim 8. In this case, when the honing machining is carried out in the horizontal honing station, the workpiece is moved. In particular, the honing spindle of the horizontal honing unit is kept unmoved at least in the direction of the translatory relative movement.By moving the workpiece, the movement of the horizontal honing unit can be reduced or, with a fixed horizontal honing unit, can only be limited to the rotation of the honing spindle or of a honing tool arranged on the honing spindle. This increases the precision with which the honing spindle or the honing tool can be used during the honing machining. A more precise overall result of the honing operation is the result. The method steps described here correspond in part to corresponding structural designs of the honing machines described. The correspondingly mentioned advantages are also present in the method steps.Furthermore, the object to be achieved is achieved by a method having the features of the preamble of claim 8, in particular having the features of claim 8, wherein the workpiece is moved away from the rotary table and the honing processing is carried out outside the rotary table in order to carry out the horizontal honing processing, in particular wherein the workpiece is moved outside the circular path on which the rotary table moves the workpieces.Because the honing process takes place outside the rotary table, a transmission of undesired vibrations and oscillations caused by the honing process to the rotary table is prevented or at least minimized. Other workpieces located on the turntable are thus likewise decoupled from these vibrations or oscillations. This results in an increase in the precision of the machining of the workpieces at the other work stations.Furthermore, the object to be achieved is achieved by a method having the features of the preamble of claim 8, in particular having the features of claim 8 or claim 9, wherein the horizontal spindle axis runs along a machining direction. The translatory relative movement during honing is effected along this axis. The machining direction is parallel to a direction running radially through the rotary table axis, but spaced apart from the rotary table axis. In other words, the machining direction extends along a straight line that does not pass through the turntable axis.As a result, the horizontal honing unit can be arranged and aligned more flexibly. For example, two horizontal honing units can also be positioned next to one another and parallel to one another. It is likewise conceivable to position a horizontal honing unit and a measuring station next to one another and parallel to one another. An acceleration of the overall process results.Furthermore, the object to be achieved is achieved by a method having the features of the preamble of claim 8, in particular having the features of claim 8, claim 9 or claim 10, wherein the orientation of the workpiece is changed before the horizontal honing machining is carried out. It is also conceivable that the orientation of the workpiece is changed during the execution and / or after the execution of the horizontal honing process.As a result, the horizontal honing unit can be arranged and aligned more flexibly. In the case of a fixed or a firmly arranged workpiece, the position and orientation of the horizontal honing unit would be predefined by the orientation or orientation of the workpiece.Further features, details and advantages of the invention are evident from the wording of the claims and from the following description of exemplary embodiments on the basis of the drawings. The following are shown: FIG. 1 is a top view of a honing machine according to the invention; FIG. 2 shows a side view of the honing machine according to the invention according to FIG. 1 ; FIG. 3 is a top view of another embodiment of a honing machine according to the invention; and FIG. 4 is a side view of the honing machine according to the invention according to FIG. 3.In the following description and in the figures, corresponding components and elements bear the same reference numerals. For the sake of better clarity, not all reference numerals are reproduced in all figures.FIG. 1 shows a top view of a honing machine 10 according to the invention for carrying out honing operations on holes in a workpiece 12 oriented orthogonally to one another. The transport system 16 includes a turntable 18 that is rotatable about its vertical turntable axis 20. Four workpiece receptacles 22 are arranged on the rotary table 18, wherein each of the workpiece receptacles 22 can receive a workpiece 12. By rotating the rotary table 18 about the rotary table axis 20, the workpieces 12 are transported on a circular path. The workpieces 12 are thereby supplied to the individual work stations. Four work stations are indicated by four workpieces 12. The work station shown on the right in FIG. 1 is a horizontal honing station 24. The horizontal honing station 24 comprises a horizontal honing unit 26 which has a honing spindle 28 with a honing tool. The honing spindle 28 or the honing tool is aligned along a horizontal spindle axis 30. Thus, the horizontal honing operation is performed along this horizontal spindle axis 30.The honing machine 10 further comprises an actuator unit 32 which is arranged on the machine base 14 and which can move the workpiece 12 back and forth along the horizontal spindle axis 30 by means of a rail system. During operation, the workpiece 12 is moved in the radial direction by the rotary table 18 so that there is no longer any direct contact between the workpiece 12 and the rotary table 18, the rotary table is virtually vibration-decoupled from the workpiece. By decoupling the workpiece 12 in this way, the vibrations or oscillations produced during the execution of the horizontal honing operations are prevented from propagating via the workpiece 12 onto the rotary table 18 and thus onto other workpieces 12 or workstations.Before a horizontal honing operation is performed on the workpiece 12, the workpiece 12 is oriented in the actuator unit 32 such that a bore oriented along a horizontal direction to be honed is disposed along the horizontal spindle axis 30. In this exemplary embodiment, the horizontal honing unit 26 is arranged fixedly on the machine base 14, so that the honing spindle 28 is also immovable along the horizontal spindle axis 30. The honing spindle 28 or the honing tool only performs one rotation during the execution of the horizontal honing operation. The workpiece 12 is moved back and forth along the horizontal spindle axis 30 by means of the actuator unit 32 while the honing spindle 28 or the honing tool rotates, so that the honing operation can be carried out on the bore previously aligned along the horizontal spindle axis 30. After the horizontal honing operation has been performed, the workpiece 12 is picked up again in the workpiece receiver 22 of the rotary table 18 and is transported to the next work station by rotation of the rotary table 18 about its vertical rotary table axis 20.The individual work stations can be a loading and unloading station, a vertical honing station, a measuring station or a further horizontal honing station 24. Thus, for example, the work station indicated on the left in FIG. 1 by the workpiece 12 can be a loading and unloading station and the work stations indicated on the top and bottom in FIG. 1 by workpieces 12 can be vertical honing stations with vertical honing units, not shown. In this case, in particular the workstation indicated at the top by the workpiece 12 in FIG. 1 can be used for vertical pre-honing and the workstation indicated at the bottom by the workpiece 12 in FIG. 1 can be used for vertical finish-honing. At least one of the work stations can, however, also be a measuring station with which the honing operations carried out can be remeasured and monitored at the respective bores. However, it is also conceivable for the measurement to be carried out by means of a measuring unit 34 at a workstation which is not a measuring station.The measuring unit 34 depicted in FIG. 1 is arranged on the machine base 14 by means of slides in such a way that a readjustment of the horizontal bore is possible while the workpiece 12 is located, for example, in the work station for vertical forming honing (see above).FIG. 2 shows a side view of the honing machine 10 according to the invention according to FIG. 1, which clearly shows that, for carrying out the honing machining in the horizontal honing station 26, the workpiece 12 is moved radially outwards outside the rotary table 18 in order to achieve the above-described decoupling of the workpiece 12 from the rotary table 18. In addition, in this exemplary embodiment, the rotary table 18 is designed as a lifting rotary table. Thus, the turntable 18 can be lowered after the workpieces 12 are transported into the next work station. The workpieces 12 then remain in the respective work stations and are no longer directly connected to the rotary table 18. Thus, the rotary table 18 is omitted as a possible transmission medium of undesired oscillations or vibrations, which may arise at the individual work stations, between the individual workpieces 12 or work stations.FIG. 3 shows a top view of a further exemplary embodiment of a honing machine 10 according to the invention. Here too, four work stations are shown, which are indicated by four workpieces 12, analogously to the preceding exemplary embodiment. In the exemplary embodiment shown, the horizontal honing unit 26 is arranged on the machine base 14 in such a way that the horizontal spindle axis 30 does not run through the rotary table axis 20. Accordingly, the workpiece 12 must be aligned along this horizontal spindle axis 30 with its bore aligned along the horizontal direction. This is done by means of a rotation device which is not shown in greater detail.In this exemplary embodiment, the horizontal honing unit 26 is configured to be movable by means of rails, so that the horizontal honing unit 26 and thus also the honing spindle 28 can move back and forth along the horizontal spindle axis 30 with a honing tool. To perform a horizontal honing operation, after the workpiece 12 has been aligned, the honing spindle 28 is lowered by moving the horizontal honing unit 26 into the workpiece 12 or into the bore of the workpiece 12 to be honing.After the horizontal honing operation has been carried out, the workpiece 12 is rotated again by means of the rotation device, not shown, in such a way that the honing operations carried out can be measured and checked by means of the measurement device 34. The workpiece 12 rotated for this purpose and its orientation are outlined in FIG. 3 with a thin, non-solid line. The measuring device 34 is likewise arranged on the machine base 14 so as to be displaceable along an axis by means of rails. Thus, horizontal honing and remetering can be done at the same work station. It is not necessary to arrange a separate work station for the readjustment of the horizontal honing operations. Nevertheless, a measuring station can be provided as a work station at which only the re-measurement takes place.The individual work stations can, analogously to the preceding exemplary embodiment, be a loading and unloading station, a vertical honing station, a (further) measuring station or a further horizontal honing station 24.FIG. 4 shows a side view of the honing machine 10 according to the invention according to FIG. 3 Also in this exemplary embodiment, the rotary table 18 is designed as a lifting rotary table in order to prevent the transmission / propagation of undesired oscillations or vibrations via the rotary table 18.

Claims

Honing machine (10) for carrying out honing operations on holes in a workpiece (12) oriented orthogonally to one another, having: a machine base (14); at least one machine-internal transport system (16) which is arranged on the machine base (14) and comprises a rotary table (18) which is rotatable about a vertical rotary table axis (20) and has a plurality of workpiece receptacles (22) which are arranged offset from one another in the circumferential direction at a radial distance from the rotary table axis (20) in such a way that a workpiece (12) accommodated in a workpiece receptacle (22) can be transported one after the other along a circular path by rotating the rotary table (18) and can be fed to different work stations of the honing machine (10); wherein at least one of the work stations is a vertical honing station, which has at least one vertical honing unit, which has a honing spindle, which is designed for honing machining a bore aligned along a vertical direction by means of a relative movement between the workpiece (12) and the honing spindle rotating about a spindle axis and translatory along the spindle axis, wherein the spindle axis is aligned parallel to the rotary table axis (20); wherein one of the work stations is a horizontal honing station (24), which has at least one horizontal honing unit (26), which has a honing spindle (28), which is designed for honing a bore aligned along a horizontal direction by means of a relative movement between the workpiece (12) and this honing spindle (28) rotating about a horizontal spindle axis (30) and translatory along the horizontal spindle axis (30), characterized in that the honing machine (10) has an actuator unit (32), which is arranged and designed to move the workpiece (12) during the honing machining in order to carry out the honing machining in the horizontal honing station (24).Honing machine (10) according to the preamble of claim 1, characterized in that the horizontal spindle axis (30) extends along a machining direction and during honing the translatory relative movement takes place along this axis, wherein this machining direction runs parallel to a direction extending radially through the rotary table axis (20), but is spaced apart from the rotary table axis (20).Honing machine (10) according to one of the preceding claims, characterized in that the machine-internal transport system (16) is designed in such a way that, in order to carry out the honing machining in the horizontal honing station (24), the workpiece (12) is moved away from the rotary table (18), and the honing machining is carried out outside the rotary table (18).Honing machine (10) according to one of the preceding claims, characterized in that a rotation device is provided in the horizontal honing station (24), so that the orientation of the workpiece (12) can be changed in such a way that the machining in the horizontal honing station (24) can take place in a different orientation of the workpiece (12) than in the vertical honing station.Honing machine (10) according to one of the preceding claims, characterized in that all the work stations of the honing machine are arranged on the machine base (14).Honing machine (10) according to one of the preceding claims, characterized in that the honing machine (10) has at least two vertical honing stations, wherein at least one vertical honing station has a vertical honing unit which is arranged on a portal-like carrier such that it can be moved by means of slides.Honing machine (10) according to one of the preceding claims, characterized in that the honing machine (10) has a first work station, which is designed as a loading and unloading station, a second work station, which is a first vertical honing station, a third work station, which is the horizontal honing station (24), and a fourth work station, which is a second vertical honing station, wherein the transport direction of the rotary table (18) is from the first to the fourth work station and back to the first work station.A method for performing honing operations on holes in a workpiece (12) oriented orthogonally to one another, the method comprising the following steps: receiving the workpiece (12) on a rotary table (18) which is rotatable about a vertical rotary table axis (20); transporting the workpiece (12) by rotating the rotary table (18) along a circular path one after the other between different work stations; wherein at least one of the work stations is a vertical honing station in which a hole oriented along a vertical direction is honingly machined by means of a relative movement between the workpiece (12) and the honing spindle rotating about a spindle axis and translatory along the spindle axis, wherein the spindle axis is oriented parallel to the rotary table axis (20); wherein one of the work stations is a horizontal honing station (24), in which a bore aligned along a horizontal direction is honingly machined by means of a relative movement between the workpiece (12) and the honing spindle (28) rotating about a horizontal spindle axis (30) and translatory along the horizontal spindle axis (30), characterized in that the workpiece (12) is moved when honing is performed in the horizontal honing station (24).Method according to the preamble of claim 8, characterised in that the horizontal spindle axis (30) extends along a machining direction and during honing machining the translatory relative movement takes place along this axis, wherein this machining direction extends parallel to a direction extending radially through the rotary table axis (20), but is spaced apart from the rotary table axis (20).The method according to claim 8 or claim 9, characterized in that, to perform the horizontal honing processing, the workpiece (12) is moved by the rotary table (18), and the honing processing is performed outside the rotary table (18).Method according to one of Claims 8 to 10, characterized in that the orientation of the workpiece (12) is changed before the horizontal honing machining is carried out.Method according to one of Claims 8 to 11, characterized in that a honing machine (10) according to one of Claims 1 to 7 is used to carry out the method.

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