Honing machine and method for carrying out honing operations on orthogonally aliged bores in a workpiece

Abstract

The invention relates to a honing machine and to a method for carrying out honing operations on orthogonally aligned bores in a workpiece, in particular for honing cylinder bores and a bearing race bore in a cylinder crankcase.

1 . Honing machine for carrying out honing operations on orthogonally aligned bores in a workpiece, comprising:
 a machine base;   at least one machine-internal transport system arranged on the machine base comprising a rotary table that rotates around a vertical rotary table axis and comprises multiple workpiece intakes which are arranged offset from one another in the circumferential direction at a radial distance from the rotary table axis such that a workpiece inserted into a workpiece intake can be successively moved along a circular path and passed through various workstations of the honing machine via rotation of the rotary table;   wherein at least one of the workstations is a vertical honing station comprising at least one vertical honing unit, which has a honing spindle designed for honing of a bore aligned along a vertical direction via a relative motion rotating around a spindle axis and translatory along the spindle axis, between the workpiece and the honing spindle, wherein the spindle axis is aligned parallel to the rotary table axis;   wherein further one of the workstations is a horizontal honing station comprising at least one horizontal honing unit, which has a honing spindle designed for honing of a bore aligned along a horizontal direction via a relative motion rotating around a horizontal spindle axis and translatory along the horizontal spindle axis, between the workpiece and this honing spindle,   characterized in that the honing machine comprises an actuator unit that is arranged and designed to carry out the honing in the horizontal honing station by moving the workpiece, wherein in particular the honing spindle of the horizontal honing unit is arranged immovably in the honing machine for carrying out the honing, or that the machine-internal transport system is designed such that, to carry out the honing in the horizontal honing station, the workpiece is moved away from the rotary table, and the honing is carried out outside of the rotary table, in particular wherein the workpiece is moved outside of the circular path where the rotary table moves the workpieces.   
     
     
         2 . Honing machine according to  claim 1 ,
 characterized in that the horizontal spindle axis extends along a processing direction and the translatory relative motion occurs along this axis during the honing, wherein this processing direction is parallel to a direction extending radially through the rotary table axis, yet is spaced from the rotary table axis.   
     
     
         3 . Honing machine according to  claim 1 , characterized in that there is a rotational device in the horizontal honing station, so that the alignment of the workpiece can be changed such that the processing in the horizontal honing station can be carried out with a different alignment of the workpiece than in the vertical honing station. 
     
     
         4 . Honing machine according to  claim 1 ,
 characterized in that all workstations of the honing machine are arranged on the machine base.   
     
     
         5 . Honing machine according to  claim 1 , characterized in that the honing machine comprises at least two vertical honing stations, wherein at least one vertical honing station comprises a vertical honing unit moveably arranged on a portal-like carrier via sliders, wherein the honing units of all vertical honing stations are moveably arranged on the carrier via sliders. 
     
     
         6 . Honing machine according to  claim 1 , characterized in that the honing machine comprises a first workstation designed as a loading and unloading station,
 a second workstation,   wherein this is a first vertical honing station for pre-honing,   a third workstation, wherein it is the horizontal honing station, and   a fourth workstation, wherein this is a second vertical honing station for the final honing or other processing, wherein the transport direction of the rotary table is from the first to the fourth workstation and back to the first workstation.   
     
     
         7 . (canceled) 
     
     
         8 . Method for carrying out honing operations on orthogonally aligned bores in a workpiece, wherein the method comprises the following steps:
 receipt of the workpiece at a rotary table that rotates around a vertical rotary table axis; transportation of the workpiece successively between various workstations along a circular path via rotation of the rotary table;   wherein at least one of the workstations is a vertical honing station in which a bore aligned along a vertical direction is honed via a relative motion rotating around a spindle axis and translatory along the spindle axis, between the workpiece and honing spindle, wherein the spindle axis is aligned parallel to the rotary table axis;   wherein further one of the workstations is a horizontal honing station in which a bore aligned along a horizontal direction is honed via a relative motion rotating around a horizontal spindle axis and along the horizontal spindle axis, between the workpiece and honing spindle,   characterized in that   in order to carry out the honing in the horizontal honing station, the workpiece is moved, and the honing spindle of the horizontal honing unit is held immobile at least in the direction of the translatory relative motion, or that in order to carry out the horizontal honing, the workpiece is moved away from the rotary table and the honing is carried out outside of the rotary table, wherein the workpiece is moved outside of the circular path where the rotary table moves the workpieces.   
     
     
         9 . Method according to  claim 8 ,
 characterized in that the horizontal spindle axis runs along a processing direction and the translatory relative motion during the honing occurs along this axis, wherein this processing direction is parallel to a direction extending radially through the rotary table axis, yet is spaced from the rotary table axis.   
     
     
         10 . Method according to  claim 8 , characterized in that the alignment of the workpiece is changed before the horizontal honing. 
     
     
         11 . (canceled) 
     
     
         12 . Method according to  claim 8 ,
 characterized in that a honing machine according to  claim 1  is used to carry out the method.