Abstract: An air spring with an air spring rolling bellows made of elastomer material with reinforcing layers embedded within the rolling bellows wall, the air spring being clamped in between a sprung and an unsprung mass, and the air spring rolling bellows, at least at one of its two open ends, having a bead ring or a reinforced end region and being fastened in an airtight manner to an air spring cover connected to the sprung mass, the rolling bellows being fastened in an airtight manner by way of its other open end to a connection part connected to the unsprung mass, and the cover, connection part and rolling bellows delimiting a working space filled with compressed air, wherein at least the airtight connection between the air spring rolling bellows and the air spring cover is effected by means of a connecting element which is fastened to the bead ring or to the reinforced end region in a materially bonded and/or positively locking manner.

Abstract: An air spring includes a composite bumper, a composite piston, a flexible bellow and an upper end cap member. The composite piston has a first end which includes a plurality of rigid portions and a plurality of adjacently positioned cantilever snap joints for receiving and securing the composite bumper. The composite bumper includes an inner wall having a surface shape for securely engaging the plurality of rigid portions and the plurality of cantilever snap joints. The first end of the composite piston further includes a piston housing surface upon which an outer surface of the composite bumper nests against. The flexible bellow is sealingly attached to the composite piston and the upper end cap member. The flexible bellow, the upper end cap member, and the composite piston together form a fluid tight chamber, and the composite bumper is contained within the fluid tight chamber.

Abstract: An air spring includes a composite bumper, a composite piston, a flexible bellow and an upper end cap member. The composite piston has a first end which includes a plurality of rigid portions and a plurality of adjacently positioned cantilever snap joints for receiving and securing the composite bumper. The composite bumper includes an inner wall having a surface shape for securely engaging the plurality of rigid portions and the plurality of cantilever snap joints. The first end of the composite piston further includes a piston housing surface upon which an outer surface of the composite bumper nests against. The flexible bellow is sealingly attached to the composite piston and the upper end cap member. The flexible bellow, the upper end cap member, and the composite piston together form a fluid tight chamber, and the composite bumper is contained within the fluid tight chamber.

Abstract: Embodiments of the present invention relate to a method and machine tool for machining a workpiece on the machine tool comprising at least 5 axes with a tool by using an NC program, the machine tool comprising a clamp for clamping a workpiece and a work spindle including a tool holder for holding a workpiece. The workpiece is clamped on the tool holder of the work spindle of the machine tool, the tool is clamped in the clamp of the machine tool, and the workpiece clamped in the tool holder of the work spindle is controlled in a program-controlled manner in relation to the tool clamped in the clamp for removing material from the workpiece.

Abstract: A disclosed example method for generating control data for the formation of a tooth flank by milling a workpiece on a numerically controlled machine tool with at least 5 axes, at a universal machine tool, through successive passes with a milling cutter on the machine tool based on generated control data involves defining a geometry of a tooth flank, determining a contact pattern area on the predefined tooth flank geometry, determining parameters to vary the predefined tooth flank geometry, and generating control data on the basis of tooth flank geometry modified based on the defined contact pattern area and of the defined parameters.

Abstract: A process and an apparatus for generating control data, wherein a first tooth flank geometry is determined which corresponds to a geometry of a first tooth flank of the herringbone gearing, a second tooth flank geometry is determined which corresponds to a geometry of a second tooth flank of the herringbone gearing, a transition section geometry is determined which corresponds to a geometry of a transition section between the first tooth flank and the second tooth flank, an overall tooth flank geometry is determined which comprises the first tooth flank geometry, the transition section geometry and the second tooth flank geometry, and the control data is generated based on the overall tooth flank geometry and machining paths are indicated, each extending transversely to the profile direction of the tooth flanks and along the first tooth flank geometry, the transition section geometry and the second tooth flank geometry.

Abstract: A disclosed example method for generating control data for forming a tooth of a spur gear toothing which has an intended widthwise crowning by milling a workpiece at a numerically controlled machine tool having at least 5 axes, at a universal machine tool, by successively moving a milling cutter of the machine tool along a plurality of machining paths based on the generated control data, involves providing a tooth flank geometry of at least one tooth flank of the tooth of the spur gear toothing. The method also involves determining parameters for specifying a change of the provided tooth flank geometry according to the intended widthwise crowing of the tooth. In addition, the method involves generating control data based on a tooth flank geometry which is changed based on the determined parameters, wherein the changed tooth flank geometry corresponds to a tooth flank geometry of the tooth having the intended widthwise crowing.

Abstract: An air spring piston for a heavy-duty vehicle includes a top portion and a bottom portion. The top portion includes a bumper and a connecting means for an air spring bellows. The bottom portion is mounted on a structure of the vehicle. The top portion and bottom portion are connected to each other to form a piston chamber and include a bearing means for reacting bumper forces from the bumper to the bottom portion and to the structure of the vehicle on which the bottom portion is mounted. The piston chamber is in fluid communication with a bellows chamber of the air spring via an opening, wherein the geometry of the opening is such that during dynamic spring movements, the pressure in the piston chamber and the pressure in the bellows chamber are not equalized.

Abstract: The present invention relates to a machine tool and a corresponding process for machining a workpiece by means of one or more tools controlled by means of control data, the machine tool comprising at least 5 simultaneously controllable axes. A control device being suited to control the tool supported in a support means by means of the control data along a tool path to remove material from the workpiece clamped in a clamping means. The machine tool being suited to machine a first workpiece to provide the first workpiece with a first gearing, the first workpiece being a counter piece to a second workpiece having a second gearing.

Abstract: The present invention relates to units or modules for data acquisition that may either be used as stand alone units or be used to form a modular system where a plurality of modules are mounted together in a frame or rack structure as well as combinations of such stand-alone units and frames.

Abstract: A process and an apparatus for generating control data, wherein a first tooth flank geometry is determined which corresponds to a geometry of a first tooth flank of the herringbone gearing, a second tooth flank geometry is determined which corresponds to a geometry of a second tooth flank of the herringbone gearing, a transition section geometry is determined which corresponds to a geometry of a transition section between the first tooth flank and the second tooth flank, an overall tooth flank geometry is determined which comprises the first tooth flank geometry, the transition section geometry and the second tooth flank geometry, and the control data is generated based on the overall tooth flank geometry and machining paths are indicated, each extending transversely to the profile direction of the tooth flanks and along the first tooth flank geometry, the transition section geometry and the second tooth flank geometry.

Abstract: A disclosed example method for generating control data for forming a tooth of a spur gear toothing which has an intended widthwise crowning by milling a workpiece at a numerically controlled machine tool having at least 5 axes, at a universal machine tool, by successively moving a milling cutter of the machine tool along a plurality of machining paths based on the generated control data, involves providing a tooth flank geometry of at least one tooth flank of the tooth of the spur gear toothing. The method also involves determining parameters for specifying a change of the provided tooth flank geometry according to the intended widthwise crowing of the tooth. In addition, the method involves generating control data based on a tooth flank geometry which is changed based on the determined parameters, wherein the changed tooth flank geometry corresponds to a tooth flank geometry of the tooth having the intended widthwise crowing.

Abstract: A disclosed example method for generating control data for the formation of a tooth flank by milling a workpiece on a numerically controlled machine tool with at least 5 axes, at a universal machine tool, through successive passes with a milling cutter on the machine tool based on generated control data involves defining a geometry of a tooth flank, determining a contact pattern area on the predefined tooth flank geometry, determining parameters to vary the predefined tooth flank geometry, and generating control data on the basis of tooth flank geometry modified based on the defined contact pattern area and of the defined parameters.

Abstract: A method and machine tool for machining a workpiece on the machine tool comprising at least 5 axes with a tool by using an NC program, the machine tool comprising a clamping means for clamping a workpiece and a work spindle including a tool holding means for holding a workpiece, where the workpiece is clamped on the tool holding means of the work spindle of the machine tool, the tool is clamped in the clamping means of the machine tool, and the workpiece clamped in the tool holding means of the work spindle is controlled in a program-controlled manner in relation to the tool clamped in the clamping means for removing material from the workpiece.

Abstract: The invention relates to a method and a device for generating transformed control data for controlling a tool on a machine tool for machining a workpiece clamped in a clamping means of the machine tool, including the steps of: (1) determining control data indicating which first tool path is to be traveled by the tool of the machine tool with which first tool orientation for machining the clamped workpiece if the workpiece is clamped in the clamping means in accordance with a clamping situation target state means; (2) detecting a clamping situation current state; (3) detecting a clamping situation deviation between the clamping situation current state and the clamping situation target state; and (4) generating transformed control data by executing a transformation of a part of the determined control data in dependence of the detected clamping situation deviation.

Abstract: The present invention relates to a machine tool and a corresponding process for machining a workpiece by means of one or more tools controlled by means of control data, the machine tool comprising at least 5 simultaneously controllable axes. A control device being suited to control the tool supported in a support means by means of the control data along a tool path to remove material from the workpiece clamped in a clamping means. The machine tool being suited to machine a first workpiece to provide the first workpiece with a first gearing, the first workpiece being a counter piece to a second workpiece having a second gearing.

Abstract: The present invention relates to a device, a method and a machine tool for machining a workpiece clamped in the machine tool, the device comprising a hobbing tool for removing material of the workpiece for shaping a rollable profile, in particular a gearing, on the workpiece by hob milling, and a hobbing tool receiving means for receiving the hobbing tool, the device particularly comprising a milling head fixing means which is suitable to fix the device in a receiving means of the milling head of the machine tool, the machine tool comprising at least 5 axes.