Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23F—MAKING GEARS OR TOOTHED RACKS
  • B23F17/00—Special methods or machines for making gear teeth, not covered by the preceding groups
  • B23F17/003—Special methods or machines for making gear teeth, not covered by the preceding groups for dry cutting
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23F—MAKING GEARS OR TOOTHED RACKS
  • B23F17/00—Special methods or machines for making gear teeth, not covered by the preceding groups
  • B23F17/006—Special methods or machines for making gear teeth, not covered by the preceding groups using different machines or machining operations
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23F—MAKING GEARS OR TOOTHED RACKS
  • B23F19/00—Finishing gear teeth by other tools than those used for manufacturing gear teeth
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23F—MAKING GEARS OR TOOTHED RACKS
  • B23F19/00—Finishing gear teeth by other tools than those used for manufacturing gear teeth
  • B23F19/002—Modifying the theoretical tooth flank form, e.g. crowning
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23F—MAKING GEARS OR TOOTHED RACKS
  • B23F21/00—Tools specially adapted for use in machines for manufacturing gear teeth
  • B23F21/005—Tools specially adapted for use in machines for manufacturing gear teeth with plural tools on a common axis
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23F—MAKING GEARS OR TOOTHED RACKS
  • B23F5/00—Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made
  • B23F5/12—Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made by planing or slotting
  • B23F5/16—Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made by planing or slotting the tool having a shape similar to that of a spur wheel or part thereof
  • B23F5/163—Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made by planing or slotting the tool having a shape similar to that of a spur wheel or part thereof the tool and workpiece being in crossed axis arrangement, e.g. skiving, i.e. "Waelzschaelen"
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
  • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
  • B23P15/14—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass gear parts, e.g. gear wheels
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
  • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
  • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T409/00—Gear cutting, milling, or planing
  • Y10T409/10—Gear cutting
  • Y10T409/101113—Gear chamfering or deburring
  • Y10T409/101272—Using relatively reciprocating or oscillating cutter
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T409/00—Gear cutting, milling, or planing
  • Y10T409/10—Gear cutting
  • Y10T409/101431—Gear tooth shape generating
  • Y10T409/10159—Hobbing
  • Y10T409/101749—Process

Definitions

• the invention relates to a method for producing sliding sleeves.
• Sliding sleeves are used in automotive transmissions. They have an internal toothing and outer peripheral ribs, which engage thrust drives to move the sliding sleeves in the transmission axially.
• the internal teeth of the sliding sleeves have so-called deposits, which are produced in the cutting process.
• the toothed end edges have roof-like bevels, which are also machined.
• a common method for the production of deposits or inclinations is the Schlagmesserfräs vide, as described for example DE 102 00 501 4914.
• DE 102 00 503 3894 also describes such a method. From DE 101 13 653 Al it is known to attach to an externally toothed toothed wheel with two counter-rotating single-stroke impact blades.
• the recesses on an internally toothed gear, such as a sliding sleeve are made in a similar manner.
• the internal toothing of the sliding sleeve is generated in the prior art by broaching.
• the broaching is a wet processing method. It is also necessary to previously turn the blank to be toothed to a contour.
• the invention has for its object to provide a manufacturing technology favorable method for producing a sliding sleeve.
• the object is achieved by the invention specified in the claims, each claim is basically an independent solution to the problem and each claim can be combined with any other claim.
• the blank is processed dry in WälzCl Kunststoff. It may be an untoothed blank, but it is preferably a pre-toothed blank.
• the toothing of the blank has an allowance of about 0.2 mm, which is removed in the course of the subsequent WälzClens. It is preferably a Umformrohling.
• the blank is produced in the dry machining process by merely forming, for example by means of a rolling process. This can be done on a first device of a production line. However, it is also intended to prefabricate blanks for different modules that are similar to each other. The respective module is then incorporated in the WälzCl Kunststoff Kunststoffe, ie by means of a fine machining.
• the axes of the tool spindle and workpiece spindle are skewed.
• the axes have an axis cross angle. It is a continuous machining process in which the skiving wheel can also work into the full material.
• a pre-toothed blank with a raw tooth contour is used.
• the method requires particularly rigid machines, which is why the method according to the invention is carried out on machine tools in which the tool spindle and / or the workpiece spindle are driven by a torque motor. Torque motors are able to not only rotate very slowly, but also to apply very high torques even at low speeds, with very small deviations in the travel time behavior of the machine.
• the skiving can then be followed by a further processing step on a subsequent machine tool of the production line.
• This is preferably the introduction of the above-mentioned deposits, Latching pockets or the like or to the attachment of inclines. It is essential that all processing steps, especially the blank production can be done dry.
• the blanks can be produced by means of a cold forming process.
• the kinematics of skiving is characterized by the fact that the working and peeling wheels have the same direction of rotation. They mesh with each other under skewed rotational axes so that they form a "helical gear". Due to this constellation, the cutting edge of the peeling wheel moves during its rotation in tooth space direction of the work wheel and carries a chip from. This eliminates the lifting movement. The idle time of a return stroke does not occur. To machine the entire Maschinenradbreite the peeling wheel rotation of a Axialvorschubs is superimposed in the direction of the Maschinenradachse.
• FIG. 1 in a rough schematic sectional view of the engagement of a
• FIG. 2 shows a block diagram of the processing devices arranged one after the other in a production line
• Fig. 4 is a section approximately along the line IV-IV in Figure 3 of a finished, internally toothed workpiece.
• U denotes a forming device, by means of which a pre-toothed workpiece 1 is produced from a substantially annular blank.
• the outer peripheral ribs 7 are produced, which serve to engage thrust members with which the sliding sleeve can be axially displaced in a motor vehicle transmission in order to rotationally couple together adjacent gear wheels.
• U denotes a forming device, by means of which a pre-toothed workpiece 1 is produced from a substantially annular blank.
• the outer peripheral ribs 7 are produced, which serve to engage thrust members with which the sliding sleeve can be axially displaced in a motor vehicle transmission in order to rotationally couple together adjacent gear wheels.
• U denotes a forming device, by means of which a pre-toothed workpiece 1 is produced from a substantially annular blank.
• the outer peripheral ribs 7 are produced, which serve to engage thrust members with which the sliding sleeve can be axially displaced in a motor vehicle transmission in order to
• the finished tooth contour 6 is produced on a skiving device WS downstream of the forming device U.
• the finished tooth contour 6 depends on the cross-sectional contour of the cutting teeth of the Wälzschaltechnikmaschines 3. To change the finished tooth contour 6 in the production line thus only the tool 3 must be replaced. In addition, the production parameters of the machine must be changed.
• Figure 1 shows a workpiece 1, which has an internal toothing, wherein the teeth have a Rohffykontur 5.
• the blank 1 is rotationally driven by a workpiece spindle, not shown. It rotates about the workpiece axis of rotation 2.
• the axis of rotation 4 of the Wälzschaltechnikmaschines 3 is skewed to the axis of rotation 2 of the workpiece.
• Tool 3 and workpiece 2 are each driven by a so-called electronic shaft interconnected individual drive motors. This is done without a gear.
• Workpiece 1 and tool 3 are connected directly via a shaft with the driving electric motors.
• the drive motors are so-called torque motors.
• workpiece spindle and tool spindle can be continuously rotated in a substantially fixed speed ratio, wherein the cutting edges of the skew to the workpiece 1 standing tool 3 peel into the teeth of the workpiece 1 engage.
• the workpiece 1 is advanced in the axial direction 2 in the direction of the arrow V.
• machining is similar to a hammering, with the teeth, in particular helical toothing of the tool 3 within the teeth of the workpiece 1 rolls.
• Workpiece spindle motor and tool spindle motor are controlled by a synchronization control, not shown.
• This synchronization control receives angular position information from the workpiece spindle and the tool spindle from a rotary encoder, not shown. Both workpiece spindle and tool spindle each have a rotary encoder, the pulses of the synchronization control zumony. From this angular position information, alternating or rotary drive currents are generated in order to drive the workpiece spindle motor or the tool spindle motor. Both motors are torque motors.
• these magnets may be permanent magnets .
• the number of magnets or the number of windings exceeds at least ten.
• a special rigidity of the drive is achieved by the fact that the number of magnets is not equal to the number of windings.
• the number of magnets may be smaller or larger than the number of windings. With a uniform circumferential distribution of the magnets or the windings, this results in only one to three windings facing a magnet in each case.
• the remaining windings are angularly offset to their associated magnets.
• the number of wick lungs may be greater than 12, 16, 20, 28, 36, 50 or 72.
• the number of magnets differs from the number of windings by at least 2, 4, 8, 12, 18, 24 or 30.
• the WälzWarlvoretti is at least one tooth flanks or Zahnstirnflä- chenbearbeitungsvortechnisch H, A downstream.
• the WälzWarlvortechnisch WS is initially followed by a device for generating deposits or catch pockets H.
• the operation of such a device is described by DE 41 17 365 C1 or DE 42 00 418 C1 or DE 19933 137 Al DE, which is why the content of this document is incorporated in full in this application.
• the creation of deposits takes place, for example, in a rotary process in which the workpiece axis and the tool axis are continuously rotated in a fixed speed ratio.
• the feed takes place by a superimposition of the phase change with a variation of the distance between the two mutually parallel axes of the workpiece spindle and the tool spindle.
• the deposits designated by 8 in FIG. 4 are incorporated into the tooth flanks.
• the individual processing machines, U, WS, H, A are connected to each other with workpiece transport devices, not shown, in particular conveyor belts and buffer storage.
• the WälzWarlvorraum WS, the device for generating deposits H and the device for closing A is formed by a machine, so that Umspann- times are reduced for the workpiece.
• the whole process can then be carried out on a forming device and on a cutting device.
• the preparation of the workpiece does not necessarily have to be done by forming.
• the raw tooth contour can also be generated by pre-cavities or another suitable process.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Gear Processing (AREA)
• Turning (AREA)

Applications Claiming Priority (2)

Publications (1)

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• 2005
  • 2005-10-17 DE DE102005049528A patent/DE102005049528A1/de not_active Withdrawn
• 2006
  • 2006-10-13 CN CNA2006800386284A patent/CN101291767A/zh active Pending
  • 2006-10-13 EP EP06807234A patent/EP1945396A1/de not_active Withdrawn
  • 2006-10-13 WO PCT/EP2006/067369 patent/WO2007045610A1/de active Application Filing
• 2008
  • 2008-04-17 US US12/105,072 patent/US20090142153A1/en not_active Abandoned

Non-Patent Citations (1)

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