Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
  • B23Q39/00—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation
  • B23Q39/02—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation the sub-assemblies being capable of being brought to act at a single operating station
  • B23Q39/021—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation the sub-assemblies being capable of being brought to act at a single operating station with a plurality of toolheads per workholder, whereby the toolhead is a main spindle, a multispindle, a revolver or the like
  • B23Q39/022—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation the sub-assemblies being capable of being brought to act at a single operating station with a plurality of toolheads per workholder, whereby the toolhead is a main spindle, a multispindle, a revolver or the like with same working direction of toolheads on same workholder
  • B23Q39/024—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation the sub-assemblies being capable of being brought to act at a single operating station with a plurality of toolheads per workholder, whereby the toolhead is a main spindle, a multispindle, a revolver or the like with same working direction of toolheads on same workholder consecutive working of toolheads
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23B—TURNING; BORING
  • B23B3/00—General-purpose turning-machines or devices, e.g. centre lathes with feed rod and lead screw; Sets of turning-machines
  • B23B3/16—Turret lathes for turning individually-chucked workpieces
  • B23B3/167—Turret lathes for turning individually-chucked workpieces lathe with two or more toolslides carrying turrets
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
  • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
  • B23Q11/0042—Devices for removing chips
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B24—GRINDING; POLISHING
  • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
  • B24B27/00—Other grinding machines or devices
  • B24B27/0061—Other grinding machines or devices having several tools on a revolving tools box
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B24—GRINDING; POLISHING
  • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
  • B24B27/00—Other grinding machines or devices
  • B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B24—GRINDING; POLISHING
  • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
  • B24B41/00—Component parts such as frames, beds, carriages, headstocks
  • B24B41/04—Headstocks; Working-spindles; Features relating thereto
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B24—GRINDING; POLISHING
  • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
  • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
  • B24B5/01—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor for combined grinding of surfaces of revolution and of adjacent plane surfaces on work
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
  • B23Q39/00—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation
  • B23Q2039/008—Machines of the lathe type

Definitions

• the invention relates to a grinding machine with at least one grinding machine bed, a feed carriage and a grinding table with table structures, and a method for machining a workpiece in a grinding machine.
• the object of the invention is to provide a grinding machine which can be used extremely flexibly and which enables an increase in productivity compared to previous grinding machines.
• a grinding machine with the features of claim 1 and a method with the features of claim 19 are proposed. Additional features relate to a turning tool holder and a turning tool holder plate. Appropriate further training is contained in the respective subclaims.
• a grinding machine with a grinding machine bed already designed for grinding processing is used, the rigidity, heat transfer behavior, vibration behavior, etc. of which has already been optimized for this task.
• the grinding machine has at least one grinding machine bed, a feed slide and a grinding table with table structures.
• a turning tool holder for hard turning is also provided. This makes it possible not only to completely grind a workpiece in one clamping.
• the lathe tool holder enables a lathe tool or other cutting tool to be used and the workpiece to be machined either before, during or after grinding. This extends the area of application of the grinding machine, the main function of which, however, preferably remains grinding. Therefore, the grinding machine continues to have useful devices such as steadies etc. as table structures.
• the grinding machine has a headstock to which the turning tool holder is detachably fastened.
• the headstock serves, for example, as a carrier for a grinding wheel or a turning tool.
• a further development provides that the headstock can be pivoted. As a result, different tools can each be moved into the required engagement position on the tool. In addition, this allows a controlled swiveling device for the headstock to be used for various tools with one control.
• the grinding machine has preferably arranged the turning tool holder in addition to a grinding spindle. This eliminates changeover times for the use of different tools. A tool can thus be ground and turned in one continuous operation.
• the turning tool holder is expediently a tool turret. This has several different turning tools in stock, so that, for example, According to the programmed workflow, there must be no interruption with tool stop and tool change.
• a further development of the grinding machine has designed the turning tool holder as an exchangeable turning tool holder plate. This simplifies tool use and tool change.
• this has a grinding spindle which has a holder on which a grinding wheel or a turning tool holder plate can be placed.
• the lathe tool mounting plate can be clamped, preferably so that it is positioned radially on the grinding spindle. Therefore, the receptacle is expediently arranged at least radially close.
• the grinding machine In addition to the grinding process itself, the grinding machine must also be able to meet the demands placed on it during the hard turning process.
• An embodiment with which a high processing quality is possible while simultaneously using possibly existing components of the grinding machine has been designed as a tool turret, which can be positioned radially via a position measuring system by means of an electronically oriented spindle stop. The accuracy achieved in this way can be used for grinding as well as for turning.
• the grinding machine has mounted a turning tool on a radially contactable turning tool mounting plate.
• a further accuracy as well as shortening the machining time is achieved in that the grinding machine has a mounting housing for the grinding spindle or the tool turret, the mounting housing on a Delivery carriage can be swiveled horizontally. This makes it possible to use a control of the feed slide for moving the grinding spindle or the tool turret and at the same time to ensure a quick exchange of the grinding spindle and tool turret by means of the mounting housing.
• a further flexibility of the grinding machine is achieved in that two independently movable feed carriages for turning tool holder in the direction X1 / X2 / Z1 / Z2 are built on a grinding machine frame of the grinding machine. This enables simultaneous turning at different positions of the tool. If both feed carriages are arranged opposite each other, it can further be ensured that one of the two brings a turning tool into engagement with the workpiece, while the other feed carriage can be repositioned. It is also advantageous if two independently movable feed slides are used, each carrying different tools, for example a grinding wheel and a turning tool.
• the grinding machine In order to shorten machining times, the grinding machine according to a further development also provides the function that the turning tool holder holds tools for external and / or internal turning. This saves unclamping and reclamping in another processing machine.
• the grinding machine preferably has a guideway cover and / or a chip removal device which is adapted to the respective processing operation.
• the guideway cover and / or the chip removal device can also be present separately from the grinding machine and then attached to the grinding machine for the respective application.
• Other individual parts are also a turning tool mounting plate adapted to the grinding machine and a turning tool mounting.
• the lathe tool mounting plate for a lathe stuff has a connector.
• the connecting part is adapted accordingly for a connection to the grinding machine.
• the turning tool holder for a turning tool has a connecting part that is adapted accordingly for assembly with the grinding machine.
• the grinding machine with a turning tool holder allows a modular structure of the various functions of grinding and turning, which also enables retrofitting for grinding machines that can be used for hard turning.
• a corresponding turning tool tool holder as well as a turning tool holder plate, a tool turret or another of the above-mentioned components can additionally be provided as a retrofit kit on an already existing grinding machine.
• At least one receptacle for a turning tool or a tool turret for receiving turning tools is preferably built up on the grinding machine bed so that advantages of the grinding machine structure can be used for hard turning.
• advantages also result from the use of an infeed carriage of the X axis, which is used for grinding, for receiving the tool holder or the turret head for the turning tools.
• Advantageous further advantages for this lathe result from the construction of the grinding machine in relation to the grinding table with the guides and the drive for the Z axis.
• the processing machine is expediently built as a grinding machine to the extent that a turning tool holder is built onto a commercially available grinding machine and guide track covers and chip removal devices required for the chip flow of the turning process are fitted accordingly.
• This makes it possible to mount a turning tool holder or a tool turret instead of the grinding spindle with grinding wheel holder, which are designed for hard turning.
• an appropriately designed grinding spindle with speaking grinding wheel holder are used so that instead of the grinding wheel a tool holder for turning tools can be attached.
• the tool holder can be designed in such a way that it is held on the grinding spindle in exactly the same way as a grinding wheel.
• a tool mounting plate for the turning tools is correspondingly radially fixed and clamped on this grinding spindle and is positioned radially via a position measuring system by means of an electronically oriented spindle stop.
• a method for machining a workpiece in a grinding machine in which hard turning is carried out on the workpiece in the grinding machine.
• the method allows another processing to take place instead of or in addition to grinding, in particular as additional processing, for example either before, during or after grinding.
• the method further provides that the workpiece is ground and turned. To shorten the machining time, the workpiece is left in one clamping when changing a machining mode from grinding to turning or vice versa. There is no need to change to another machine.
• the turning tool is preferably moved by means of a control for a grinding spindle. This means that an additional control does not have to be used.
• FIG. 1 is a plan view of a grinding machine structure with a tool holder and a tool for hard turning.
• FIG. 2 shows a top view like FIG. 1 with a tool turret for hard turning;
• FIG. 3 shows a side view of a tool mounting plate;
• 4 shows a plan view of the grinding machine structure with a horizontally pivotable tool turret;
• FIG. 5 shows a top view like FIG. 4 with a grinding spindle unit and a tool turret for hard turning
• FIG. 6 shows an arrangement of two opposing headstocks, each with a turret
• FIG. 7 shows a top view like FIG. 6 with a grinding spindle and a turret for hard turning
• Fig. 8 is a view of a hard lathe with a first and a second tool turret.
• FIG. 1 shows a plan view of a grinding machine structure which is equipped for hard turning.
• the machine structure is only shown schematically and serves to explain the invention.
• the machine bed has the same design as a grinding machine.
• a workpiece headstock 2 is mounted on a grinding table (not shown) which can be moved in the direction of the CNC axis Z and which receives a chuck 2A for clamping and driving a workpiece 1 on a motor-driven (see arrow 3) workpiece spindle.
• the workpiece 1 is supported by a tip, which is attached to a tailstock quill 4A, which can be moved hydraulically for loading and unloading (see arrow 4B).
• FIG. 2 also shows a machine structure as in FIG.
• a turret 9 is built on the feed slide 5 as a tool holder.
• the turret receives a tool mounting plate 11 that can be moved mechanically or by means of a CNC axis.
• the CBN or PCD indexable inserts 12 are mounted in a clampable manner on the tool mounting plate 11.
• the turret 9 and the tool mounting plate 11 can be moved radially around the common central axis 13.
• the method in particular in the form of a connected method, is represented by the directional arrow 10.
• FIG. 3 shows a side view according to arrow V from FIG. 2 on the tool turret 9 and the tool mounting plate 11, as well as a section through the workpiece 1.
• the arrow X again shows the feed direction of the feed carriage 5.
• the tool holder plate 11 serves to hold different tools and indexable inserts 12, 12A.
• the number of cutting plates 12, 12A can be freely selected, eight cutting plates being shown here.
• the tool mounting plate 11 can be rotated by the turret 9 radially around the central axis 13, preferably by a CNC axis (see arrow 21).
• the tool mounting plate 11 is clamped on the turret 9 by means of a clamping flange 22 by screws 23. Usual quick change systems can be used here.
• a quick-change system is preferably used, which has a tool mounting plate in which the tools are fixed, for example by means of a centering device as a tool turret, can be fastened without play and releasably and can therefore be exchanged for retrofitting.
• the centering device has a three-point bearing, which is effective between a pin and a centering ring, in order to center the tool mounting plate, a clamping flange being provided for clamping the tool mounting plate.
• the centering device preferably has a centering, which has three equally spaced cams in the region of its bore, which are connected by circular wedges, which are also equally spaced apart, on the outer circumference of a drive shaft and pass through the bore extending pin are releasably and frictionally engageable.
• the workpiece 1 in which the tool engages is shown in FIG. 3. Every single tool can be engaged for turning. As shown, the tool 12 is currently engaged. By radially contacting the tool mounting plate 11, for example, the tool 12A or any other preselected tool can come into engagement.
• FIG. 4 shows a plan view of a machine concept with two tool turrets 14, 15.
• the tool turret 14, which receives the tool holding plate 16, is in the machining position.
• the tool turret 15 can be brought into the machining position, the central axis of which is then also parallel to the longitudinal axis 1 A of the workpiece.
• the tool turret 14 is then pivoted to the right, so that one of the two tool turrets 1, 15 can always be brought into the working position in a predeterminable manner.
• Figure 5 shows a further embodiment, wherein a grinding spindle 18 receives a grinding wheel 19, so that grinding and turning can be done on the grinding machine.
• the grinding can be done with corundum or CBN grinding wheels.
• FIG. 6 shows a further embodiment of the grinding machine structure for turning, the two tool turrets being arranged on the face of one another on the X1 / Z1 / X2 / Z2 axes which can be moved by means of the CNC axis.
• FIG. 7 shows the same arrangement, one of the two processing stations being designed as a grinding unit.
• a hard lathe has two units in the form of a first 24 and a second 25 tool turret, which are arranged pivotably about a horizontal central axis in the direction of arrow B in a common plane.
• These tool turrets 24, 25 are mounted on a common feed slide 26 and enclose an angle which, in the exemplary embodiment shown, is greater than or equal to 60 ° and a maximum of 180 °.
• a first tool 27 and a second tool 28 can thus be operated alternately if the workpiece 1 clamped between the workpiece headstock 2 and a tailstock 29 is to be machined.
• this machine can also be designed such that one unit is designed as a tool turret for turning and the other unit is designed as a grinding spindle unit, so that turning with the first unit and grinding with the second unit is possible.
• the external turning can be seen.
• the grinding machine and the corresponding tool holder can be adapted accordingly.
• workpieces on which bores are machined are also preferably clamped in a chuck without a riding support, ie in a chuck.
• This type of grinding machine thus allows not only the workpiece to be ground in one clamping operation, but also to be turned or drilled. This means that conventional grinding machines can be used more universally and flexibly.
• Turret head 0 Travel 1 tool mounting plate 2 indexable insert 3 center axis 4 tool turret 5 tool turret 6 mounting plate 8 grinding spindle 9 grinding wheel 0 tool turret holder housing 1 timed travel path 2 clamping flange 3 screw 4 first tool turret 5 second tool turret common feed carriage first tool second tool tailstock

Priority Applications (6)

Applications Claiming Priority (4)

Publications (2)

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Family Applications (1)

Country Status (9)

Cited By (8)

Families Citing this family (9)

Citations (4)

• 1999
  • 1999-08-09 BR BR9912900-0A patent/BR9912900A/pt not_active Application Discontinuation
  • 1999-08-09 JP JP2000564771A patent/JP2002522245A/ja not_active Ceased
  • 1999-08-09 CN CN99809467A patent/CN1312746A/zh active Pending
  • 1999-08-09 AU AU53742/99A patent/AU5374299A/en not_active Abandoned
  • 1999-08-09 CA CA002339020A patent/CA2339020A1/en not_active Abandoned
  • 1999-08-09 EP EP99939458A patent/EP1105251A1/de not_active Withdrawn
  • 1999-08-09 KR KR1020017001536A patent/KR20010072267A/ko not_active Application Discontinuation
  • 1999-08-09 WO PCT/EP1999/005738 patent/WO2000009290A1/de not_active Application Discontinuation
  • 1999-08-09 CZ CZ2001487A patent/CZ2001487A3/cs unknown

Patent Citations (4)

Non-Patent Citations (1)

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