EP0163922B1 - Automatic apparatus for the hydroplastic shaping of spur pinions - Google Patents

Automatic apparatus for the hydroplastic shaping of spur pinions Download PDF

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Publication number
EP0163922B1
EP0163922B1 EP85105148A EP85105148A EP0163922B1 EP 0163922 B1 EP0163922 B1 EP 0163922B1 EP 85105148 A EP85105148 A EP 85105148A EP 85105148 A EP85105148 A EP 85105148A EP 0163922 B1 EP0163922 B1 EP 0163922B1
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EP
European Patent Office
Prior art keywords
hydraulic cylinder
attached
immoveably
self
machine according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP85105148A
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German (de)
French (fr)
Other versions
EP0163922A2 (en
EP0163922A3 (en
Inventor
Georgi Kostov Dipl.-Ing. Petkov
Ivan Iliev Dipl.-Ing. Trevnenski
Georgi Ivanov Dipl.-Ing. Ivanov
Hristo Vassilev Dipl.-Ing. Todorov
Ilia Miltschev Dipl.-Ing Nankov
Nikolai Angelov Dipl.-Ing. Mitev
Nadka Marinova Dipl.-Ing. Miltscheva
Tzanjo Georgiev Dipl.-Ing. Tzanev
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NPSP po Hydroplastichna Obrabotka na Metalite
Original Assignee
NPSP po Hydroplastichna Obrabotka na Metalite
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Publication of EP0163922A2 publication Critical patent/EP0163922A2/en
Publication of EP0163922A3 publication Critical patent/EP0163922A3/en
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Publication of EP0163922B1 publication Critical patent/EP0163922B1/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J9/00—Forging presses
    • B21J9/02—Special design or construction
    • B21J9/025—Special design or construction with rolling or wobbling dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00—Details of machines for forging, pressing, or hammering
    • B21J13/08—Accessories for handling work or tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/28—Making machine elements wheels; discs
    • B21K1/30—Making machine elements wheels; discs with gear-teeth

Definitions

  • the invention relates to an automatic machine for the hydroplastic machining of spur gears, which will be used in the finishing of the tooth profile of spur gears with straight and helical teeth.
  • a device for processing cylindrical bodies by means of hydroplastic deformation is known, depending on the type of die, only the inner bore can be machined with the required grade, or the outer surface is profiled and finished on the inside with the required grade (BG-A-23 783 ).
  • This device is a hydraulic press perpendicular to the movable slide, to which another device for hydroplastic processing is attached, which consists of a high-pressure hydraulic cylinder fed by a separate hydraulic cabinet.
  • a tool for the hydroplastic deformation hereinafter referred to as work tool, is movably coupled and sealed to the piston rod of the high-pressure hydraulic cylinder.
  • This working tool forms a smooth puncture with a central blind hole, which with radial channels with the tooth gaps on the outer surface of the puncture, i.e.
  • the radial channels are connected to the high-pressure chamber of the hydraulic cylinder via the central blind hole, which ensures pressure lubrication of the surface to be machined and the working tool.
  • a bandage is attached to the work table of the press, which encompasses the die and the tube blank inserted into it. The actual blank is supported at its lower end by a movable support.
  • a disadvantage of this device is that with it the finishing of the profile surface is impossible because the smooth piercing processes the bore of the blank.
  • Another disadvantage is that the device for processing spur gears and especially those with medium and large modules cannot be used because it is not possible to achieve the required degree of deformation for filling the profile with the working tool.
  • a device for machining cylindrical bodies by hydroplastic deformation, wherein depending on the type of stamp only the outer surface with the required grade or the inner cylinder surface can be profiled and the outer surface can be finally machined with the required grade (BG -A-23 782)
  • This device has a vertical hydraulic press, on the work table of which a device for hydroplastic processing is attached, which consists of a high-pressure hydraulic cylinder mounted on a foundation and fed by a separate hydraulic cabinet.
  • a work tool is arranged, which consists of a set of deformation rings, on the inner surface of which tooth gaps connected by radial channels are formed.
  • the radial channels are connected to the high pressure chamber of the hydraulic cylinder.
  • a stamp is attached to the movable slide of the press, on which the blank to be machined is attached.
  • a disadvantage of these known devices is that hydroplastic finishing of the profile surface of spur gears with straight and helical teeth is not possible.
  • Another disadvantage is that a continuous cycle of the individual processes cannot be achieved because the blanks are not fed in independently and the finished products are discharged accordingly.
  • the object of the invention is to provide a machine for hydroplastic machining of spur gears with straight and helical teeth, with which the finishing of the profile surface of the spur gears in a continuous automated cycle of the individual operations and an independent feeding of blanks and the removal of the finished products is possible is.
  • an automatic machine which consists of a vertical hydraulic press, on the work table of which a device for hydroplastic processing is attached, which has a work tool and a high-pressure hydraulic cylinder mounted on a foundation.
  • a stamp is attached to a movable slide of the vertical hydraulic press. According to the invention, the stamp is mounted in a plate attached to the movable carriage.
  • a bracket is rigidly attached to two of the columns of the vertical hydraulic press with clamps.
  • a feed device is mounted on the console, which has a roller conveyor which is connected to a first guide device and a packaging device connected to a manipulator.
  • the packaging device is connected to the manipulator by a gripper arm rigidly attached to it.
  • a counter-pressure hydraulic cylinder and a discharge device are attached, which is connected to a discharge channel for removing the finished parts.
  • the hydraulic cylinder is arranged coaxially with the working tool of the device for hydroplastic processing.
  • Two pull-out devices are attached to the top plate of the device for hydroplastic processing.
  • a second guide device is mounted on the base plate.
  • a third guide device is attached to the top plate, which is attached to the movable carriage.
  • the roller conveyor of the feed device is rigidly attached to the console.
  • the first guide device is connected to it by a rack and a spring pad, so that a Gutter is formed.
  • the first guide device is rigidly connected to the console together with a first horizontal hydraulic cylinder.
  • the packaging device has a vertical hydraulic cylinder rigidly connected to the console.
  • An interchangeable mandrel is mounted on its piston rod.
  • Jaws are pivotally mounted on the gripper arm and are connected to the body of the gripper arm.
  • a third horizontal hydraulic cylinder is attached to the fuselage.
  • a pressure hydraulic cylinder with pistons is rigidly attached to the gripper arm, on which a guide rail is mounted.
  • a plate with a vertical hydraulic cylinder is mounted on the upper part of the vertical columns.
  • Two horizontal columns are movably mounted on the slide, on the right part of which the carrier plate of the manipulator is rigidly attached.
  • a second support plate is rigidly mounted on the left part, on which a third horizontal hydraulic cylinder is rigidly attached.
  • the stamp is supported by a second thrust bearing on the plate of the movable slide.
  • a gear wheel is immovably mounted on the upper part of the stamp.
  • a second friction disk is movably attached, which is connected to the stationary gear by springs.
  • a piston rod is mounted on the piston of the back pressure hydraulic cylinder via a first axial bearing.
  • a washer is immovably brought to a groove spring and a nut.
  • a first friction disk is movably mounted in an annular channel of the piston and is pressed against the disk by vertical springs.
  • a lower elastic gear is attached to the front part of the piston rod.
  • a first guide rack of the second guide device is movably mounted on the foundation of the device for hydroplastic processing.
  • a fourth hydraulic cylinder is pivotally connected to this rack by its piston rod.
  • a first fuselage is immovably mounted on the foundation, on which a first friction wheel is movably attached, which in turn bears against a first spring connected to a first adjusting screw and a first lock nut.
  • the first adjusting screw is attached to the foundation with a lock nut.
  • a second guide rack of the third guide device is movably mounted on the plate immovably attached to the movable slide.
  • a sixth horizontal hydraulic cylinder is pivotally connected to it via its piston rod.
  • a second fuselage is immovably mounted on the plate.
  • a second friction wheel is movably attached, which rests on a pressure spring connected to a third adjusting screw and a second lock nut.
  • the third adjusting screw is attached to the plate with a lock nut.
  • a horizontal hydraulic cylinder connected to the discharge device is attached to the foundation of the device for hydroplastic processing.
  • a discharge prism is immovably mounted on its piston rod.
  • a drainage channel is immovably attached to the foundation diametrically opposite.
  • the two pull-out devices are equipped with pull-out jaws.
  • the work tool consists of a set of disc deformation elements, which are mounted immovably and sealed in a bandage.
  • the elements mentioned are provided with radial channels which are formed on their end faces and are connected to the high-pressure chamber of the hydraulic cylinder.
  • the disk deformation elements are designed with a pressure-side profile that corresponds to the profile of the blanks to be machined.
  • the elements mentioned are flattened at an angle a of 2 ° to 12 ° which forms the input part and an angle a 2 of 3 ° to 15 ° which forms the output part.
  • a calibration part with a thickness of 0.5 mm to 5 mm is arranged between these parts.
  • the disk deformation elements are provided with smooth end faces.
  • the radial channels are formed in spacers which are arranged between the elements mentioned.
  • the device for hydroplastic machining of spur gears with internal teeth, is provided with an output and an input ring gear, which are mounted on its lower or upper plate.
  • the gear wheel to be machined which is inserted in a thick-walled cylinder liner, is inserted between the output and the input ring gear.
  • the automaton according to the invention has the advantage that the finishing of the tooth profile of spur gears with straight and helical gearing can be carried out, that the productivity of work is increased and that the entire process is completely automated, starting with the feeding of the blanks up to the removal of them with high accuracy and high grade machined gears with straight and helical gearing is achieved.
  • the machine consists of a vertical hydraulic press 1, hereinafter referred to briefly as a press, on the movable carriage 2 of which a plate 3 is immovably fastened.
  • a plunger 4 is mounted in the plate 3, on which a mandrel 5 and an elastic gearwheel are immovably placed.
  • a device 8 for hydroplastic processing is mounted on the work table 7 of the press 3.
  • a console 10 is immovably attached to columns 9 of the press 3 and fastened with clamps 11.
  • a feed device is mounted, which consists of a pollen passage 12 which is immovably attached to the console 10.
  • a first guide device 15 is connected to the console 10 by a toothed rack and a spring pad 13. The rack and the spring pad 13 are assembled so that a groove is formed.
  • the first guide device 15 together with the first horizontal hydraulic cylinder 14 is rigidly attached to the bracket 10.
  • the roller conveyor 12 is connected to the first guide device 15 and to a packaging device 16, which in turn is connected to a manipulator 17.
  • the manipulator 17 consists of six vertical columns 18 mounted on the console 10.
  • a slide 19 is attached to two of them and is moved by an upper hydraulic cylinder 20.
  • two horizontal columns 21 are attached, which are set in motion by a horizontal second hydraulic cylinder 22.
  • a gripper arm 23 is rigidly connected to the horizontal columns 21 and has a third horizontal hydraulic cylinder 24, jaws 25 and a guide rail 26. Springs 27 for opening the jaws 25 are attached in the gripper arm 23.
  • the device for hydroplastic processing 8 consists of a foundation 28 which is arranged stationary on the work table 7 of the press 1.
  • a back pressure hydraulic cylinder 29 is rigidly attached to the foundation 28.
  • a piston 30 is seated in it, on which a piston rod 31 is mounted via a first axial bearing 32.
  • a first friction disk 33 is movably attached to the piston 30 and is pressed against a disk 35 by two vertical springs 34.
  • the disc 35 is fastened to the piston rod 31 by a groove spring 36 and a nut 37.
  • a second guide device 36 with a first rack 38.1 is mounted on the foundation 28.
  • the rack 38.1 is pressed by a first friction wheel 39 with a first spring 40, which are mounted on the fuselage 41.
  • the first fuselage 41 is rigidly attached to the foundation 28.
  • the first spring 40 is connected to a first adjusting screw 42 and a first lock nut 43.
  • the first adjusting screw 42 is fixed to the foundation 28 with a lock nut.
  • the leading rack 38.1 is pivotally connected to the piston rod 44 of the fourth horizontal hydraulic cylinder 45.
  • a second adjusting screw 46 and a lock nut 47 are mounted on the foundation 28.
  • Guide pillars 49 for the exact guidance of the top plate 50 of the device for hydroplastic processing 8 are immovably arranged on the foundation 28.
  • High-pressure hydraulic cylinders 51 with pressure pistons 52 movably inserted in them are arranged in the top plate 50.
  • the space enclosed between the pressure pistons 52 is connected by a system of channels 53 and a throttle 54 to a deformation space which is enclosed between a working tool 55 and a set of gear wheels 56, which in turn is closed on the upper side by an upper elastic gear wheel 57 .
  • Two pull-out devices 58 are mounted opposite one another on the top plate 50. Each of them has a pull-out hydraulic cylinder 58.1 and pull-out jaws 59.
  • a fifth horizontal hydraulic cylinder 60.1 is rigidly arranged on the foundation 28 and is connected to a discharge device 60.
  • a discharge prism 61 for removing the finished parts into a discharge channel 62 is immovably attached to the piston rod of the hydraulic cylinder 60.1.
  • the discharge channel 62 is inserted diametrically opposite the discharge prism 61 and immovably fixed to the foundation 28.
  • the stamp 4 is mounted on the plate 3 by a second thrust bearing 63.
  • a second friction disk 64 is movably mounted in a channel of the plate 3. It is printed by springs 65 against an immovable gear 66, which is held immovably by a slot spring 67 and fastened to the stamp 4 by a nut 68.
  • a second guide rack 69.1 of a third guide device 69 is movably attached, which is pressed by a second friction wheel 70, which is supported on a compression spring 71.
  • the second friction wheel 70 is movably mounted in a second fuselage 72, which is fixed immovably with respect to the plate 3.
  • the compression spring 71 is connected to a third adjusting screw 73 and a second lock nut 74.
  • the third adjusting screw 73 is fastened to the plate 3 with a lock nut.
  • the second guide rack 69.1 is pivotally coupled to the piston rod 75 of a sixth horizontal hydraulic cylinder 76.
  • a fourth adjusting screw 77 with a lock nut 78 is mounted on the plate 3.
  • the packaging device 16 has a vertical hydraulic cylinder 79 which is immovably attached to the console 10. At his A replaceable mandrel is mounted on the piston rod.
  • a pressure hydraulic cylinder is immovably attached with a piston 81 to which the guide rail 26 is attached.
  • the work tool 55 consists of disk deformation elements 82, which are immovably mounted and sealed in a bandage 83.
  • the elements mentioned are provided with radial channels 84 on their end faces, which are connected to the high-pressure chamber of the hydraulic cylinder 51.
  • the disk deformation elements 82 are designed with a pressure-side profile that is equivalent to the profile of the gear wheels 56.
  • the elements mentioned are flattened at an angle Q of 2 ° to 12 ° which forms the input part 85 and an angle a 2 of 3 ° to 15 ° which forms the output part 86.
  • a calibration part 87 with a value of 0.5 mm to 5 mm is accommodated between these parts.
  • the disk deformation elements 82 are designed with smooth end faces.
  • the radial channels 84 are designed as spacer disks 88, which are arranged between the disk deformation elements 82.
  • the machine works as follows: on the roller conveyor 12, gearwheels are continuously inserted one by one up to the spring pad 13.
  • a gear 56 is brought into the packaging position by the piston rod of the first horizontal hydraulic cylinder 14. It is forcibly rotated by the rack of the first guide device 15 and merges into the groove formed by the spring pad 13 and the rack.
  • the gear wheel 56 is raised by the piston rod of the horizontal hydraulic cylinder 79 and the exchangeable mandrel 80 and comes between the jaws 25, its tooth gap being guided onto the guide rail 26.
  • the jaws 25 are clamped by the pistons of the third horizontal hydraulic cylinder 24.
  • the piston rod of the horizontal hydraulic cylinder 79 returns to its lower end position.
  • the piston of the first horizontal hydraulic cylinder 14 delivers a new aligned blank for packaging.
  • the third horizontal hydraulic cylinder 24 is switched off.
  • the Bak ken 25 are opened under the action of the springs 27.
  • the rack of the vertical hydraulic cylinder 79 moves upward, the new gear 56 lifting the previous one.
  • Both gearwheels 56 - reach between the jaws 25 with a tooth gap aligned by the guide rail 26.
  • the third horizontal hydraulic cylinder 24 is switched on.
  • the jaws 25 clamp the lower gear 56.
  • the piston rod of the vertical hydraulic cylinder 79 goes into its lower end position.
  • the number of cycles is determined by a cycle counter. It is previously set to the number corresponding to the number of gears required for packaging in the jaws 25.
  • the finished package is brought into the space of the hydroplastic processing device 8 by the manipulator 17, describing a right-angled path.
  • the pressure hydraulic cylinder 29 is in the upper end position, the upper end face of the lower elastic gear 48 lying in the plane of the upper end face of the top plate 50.
  • the carriage 2 is set in motion downwards.
  • the mandrel 5 is inserted into the opening of the gear set 56.
  • the carriage 2 is stopped before the lower end face of the upper elastic gear 57 with the gear set 56.
  • the jaws 25 are opened.
  • the piston of the pressure hydraulic cylinder 81 moves the guide rail 26 into the tooth gap of the gear set 56 and the upper elastic gear 57 for exact alignment with respect to the work tool 55.
  • the carriages 2 move downward, the gear set 56 entering the work tool 55.
  • the lower elastic gear 48 closes the deformation space and prevents the outflow of the lubricant that occurs under high pressure, which has arisen in the high-pressure hydraulic cylinders under the action of the deformation force.
  • the piston rod 31 of the counter-pressure hydraulic cylinder 29 moves downward.
  • the gear set 56 reaches the upper end face of the foundation 28.
  • the lower elastic gear 48 enters an opening in the foundation 28, its upper end face being aligned with that of the foundation 28.
  • the pull-out jaws 59 are moved forward by the pull-out hydraulic cylinders 58. 1 of the pull-out device and clamp the top gear from the gear set 56.
  • the carriage 2 moves upwards, the mandrel 5, together with the upper elastic gearwheel 57, passing back through the working tool 55 and stopping in the upper end position.
  • the pull-out hydraulic cylinders 58.1 of the pull-out device 58 release the uppermost gearwheel 56 by retracting the pull-out jaws 59.
  • the fifth horizontal hydraulic cylinder 60.1 moves the gear set 56 in the discharge channel 62 through the discharge prism 61 and brings the discharge prism 61 back into the rear end position.
  • the manipulator 17 returns on a rectangular path.
  • the jaws 25 go into the starting position; being a packaging of the new en gear set 56 is executed during machining. This ensures maximum adaptation of the work and auxiliary processes.
  • the lubricating fluid supplied from an external hydraulic cabinet fills the high-pressure hydraulic cylinders 51 and lifts the top plate 50 up to the starting position, which is delimited by the guide columns 49.
  • the stored ram 4 and piston 31 of the counter-pressure hydraulic cylinder 29 allow self-adjustment of the toothed wheel set 56 compared to the tooth gaps of the working tool 55 during the machining process.
  • the first spring washer 33 and the second spring washer 64 immobilize the punch 4 and the piston rod 31 when no machining is taking place.
  • This method of working is used when machining spur gears with straight teeth.
  • the automatic cycle is the same, but the edge of the guide rail 26 forms a helical line.
  • the carriage 2 moves downward, the machining takes place, the teeth of the toothed wheel set 56 being guided in the tooth gaps of the working tool 55, the plunger 4 and the piston rod 31 moving freely around the common axis.
  • the first 38.1 and the second 69.1 guide rack are in the rear end position.
  • the second guide rack 69.1 is disengaged from the stationary gear 66.
  • the second guide rack 69.1 is set in motion by the sixth horizontal hydraulic cylinder 76 through the piston rod 75, the functions of the fourth adjusting screw 77 with a lock nut 78 and the second friction wheel 70 with the compression spring 71, the third adjusting screw 73 and the second lock nut 74 being analogous of those described above.
  • the second rack guide 69.1 After switching on the operation of the punch 4 and after the engagement of the gear set 56 in the working tool 55, the second rack guide 69.1 returns to the rear end position, whereby it is disengaged from the stationary gear 66.

Description

Die Erfindung betrifft einen Automat für die hydroplastische Bearbeitung von Stirnrädern, der bei der Endbearbeitung des Zahnprofils von stirnrädern mit Gerad- und Schraubenverzahnung Anwendung finden wird.The invention relates to an automatic machine for the hydroplastic machining of spur gears, which will be used in the finishing of the tooth profile of spur gears with straight and helical teeth.

Bekannt ist eine Vorrichtung zur Bearbeitung von zylindrischen Körpern durch hydroplastische Deformation, wobei in Abhängigkeit von der Matrizenart nur die Innenbohrung mit dem benötigten Gütegrad bearbeitet werden kann, oder es wird die Außenoberfläche profiliert und innen mit dem benötigten Gütegrad endbearbeitet (BG-A-23 783). Diese Vorrichtung ist eine zum beweglichen Schlitten senkrechte Hydraulikpresse, an der eine andere Vorrichtung für hydroplastische Bearbeitung befestigt ist, die aus einem von einem separaten Hydraulikschrank gespeisten Hochdruck-Hydraulikzylinder besteht. Mit der Kolbenstange des Hochdruck-Hydraulikzylinders ist ein Werkezug für die hydroplastische Deformation, im folgenden als Arbeitswerkzeug bezeichnet, beweglich gekoppelt und abgedichtet. Dieses Arbeitswerkzeug bildet eine glatte Durchstechung mit einem zentralen Sackloch, das mit radialen Kanälen mit den Zahnlücken auf der Außenoberfläche der Durch stechung, d.h. des Arbeitswerkzeugs, verbunden ist. Die radialen Kanäle sind über das zentrale Sackloch mit dem Hochdruckraum des Hydraulikzylinders verbunden, wodurch eine Druckschmierung der zu bearbeitenden Oberfläche und des Arbeitswerkzeugs gewährleistet wird. Am Arbeitstisch der Presse ist eine Bandage befestigt, die die Matrize und den in sie eingelegten Rohrrohling umfaßt. Der eigentliche Rohling wird an seinem unteren Ende von einem beweglichen Träger abgestützt.A device for processing cylindrical bodies by means of hydroplastic deformation is known, depending on the type of die, only the inner bore can be machined with the required grade, or the outer surface is profiled and finished on the inside with the required grade (BG-A-23 783 ). This device is a hydraulic press perpendicular to the movable slide, to which another device for hydroplastic processing is attached, which consists of a high-pressure hydraulic cylinder fed by a separate hydraulic cabinet. A tool for the hydroplastic deformation, hereinafter referred to as work tool, is movably coupled and sealed to the piston rod of the high-pressure hydraulic cylinder. This working tool forms a smooth puncture with a central blind hole, which with radial channels with the tooth gaps on the outer surface of the puncture, i.e. of the working tool. The radial channels are connected to the high-pressure chamber of the hydraulic cylinder via the central blind hole, which ensures pressure lubrication of the surface to be machined and the working tool. A bandage is attached to the work table of the press, which encompasses the die and the tube blank inserted into it. The actual blank is supported at its lower end by a movable support.

Ein Nachteil dieser Vorrichtung ist, daß mit ihr die Endbearbeitung der Profilfläche unmöglich ist, weil die glatte Durchstechung die Bohrung des Rohlings bearbeitet. Ein weiterer Nachteil besteht darin, daß die Vorrichtung für die Bearbeitung von Stirnrädern und insbesondere von solchen mit mittleren und großen Moduln nicht verwendbar ist, weil es nicht möglich ist, mit dem Arbeitswerkzeug den benötigten Deformationsgrad für das Ausfüllen des Profils zu erreichen.A disadvantage of this device is that with it the finishing of the profile surface is impossible because the smooth piercing processes the bore of the blank. Another disadvantage is that the device for processing spur gears and especially those with medium and large modules cannot be used because it is not possible to achieve the required degree of deformation for filling the profile with the working tool.

Bekannt ist weiterhin eine Vorrichtung nach dem Oberbegriff des Anspruchs 1 zur Bearbeitung von zylindrischen Körpern durch hydroplastische Deformation, wobei in Abhängigkeit von der Stempelart nur die Außenoberfläche mit dem benötigten Gütegrad oder die Innenzylinderoberfläche profiliert und die Außenoberfläche mit dem benötigten Gütegrad endgültig bearbeitet werden kann (BG-A-23 782) Diese Vorrichtung hat eine senkrechte Hydraulikpreßse, an deren Arbeitstisch eine Vorrichtung für eine hydroplastische Bearbeitung befestigt ist, die aus einem auf einem Fundament angebrachten und von einem separaten Hydraulikschrank gespeisten Hochdruck-Hydraulikzylinder besteht. Im Kolben des Hydraulikzylinders ist ein Arbeitswerkzeug angeordnet, das aus einem Satz von Deformationsringen besteht, auf deren Innenoberfläche durch radiale Kanäle verbundene Zahnlücken ausgebildet sind. Die radialen Kanäle sind mit dem Hochdruckraum des Hydraulikzylinders verbunden. Am beweglichen Schlitten der Presse ist ein Stempel befestigt, auf dem der zu bearbeitende Rohling aufgesteckt ist.Also known is a device according to the preamble of claim 1 for machining cylindrical bodies by hydroplastic deformation, wherein depending on the type of stamp only the outer surface with the required grade or the inner cylinder surface can be profiled and the outer surface can be finally machined with the required grade (BG -A-23 782) This device has a vertical hydraulic press, on the work table of which a device for hydroplastic processing is attached, which consists of a high-pressure hydraulic cylinder mounted on a foundation and fed by a separate hydraulic cabinet. In the piston of the hydraulic cylinder, a work tool is arranged, which consists of a set of deformation rings, on the inner surface of which tooth gaps connected by radial channels are formed. The radial channels are connected to the high pressure chamber of the hydraulic cylinder. A stamp is attached to the movable slide of the press, on which the blank to be machined is attached.

Nachteilig bei diesen bekannten Vorrichtungen ist, daß eine hydroplastische Endbearbeitung der Profiloberfläche von Stirnrädern mit Gerad- und Schraubenverzahnung nicht möglich ist. Ein weiterer Nachteil besteht darin, daß ein kontinuierlicher Zyklus der Einzelabläufe nicht erreicht werden kann, weil keine selbständige Zuführung der Rohlinge und die dazugehörige Abführung der Fertigerzeugnisse erfolgt.A disadvantage of these known devices is that hydroplastic finishing of the profile surface of spur gears with straight and helical teeth is not possible. Another disadvantage is that a continuous cycle of the individual processes cannot be achieved because the blanks are not fed in independently and the finished products are discharged accordingly.

Die Aufgabe der Erfindung ist es, einen Automat für hydroplastische Bearbeitung von stirnrädern mit Gerad- und Schraubenverzahnung zu schaffen, mit dem die Endbearbeitung der Profiloberfläche der Stirnräder in einem kontinuierlichen automatisierten Zyklus der einzelnen Arbeitsgänge und eine selbständige Zuführung von Rohlingen und die Abführung der Fertigerzeugnisse möglich ist.The object of the invention is to provide a machine for hydroplastic machining of spur gears with straight and helical teeth, with which the finishing of the profile surface of the spur gears in a continuous automated cycle of the individual operations and an independent feeding of blanks and the removal of the finished products is possible is.

Diese Aufgabe wird durch einen Automat nach Anspruch 1 gelöst, der aus einer senkrechten Hydraulikpresse besteht, an deren Arbeitstisch eine Vorrichtung für eine hydroplastische Bearbeitung befestigt ist, welche ein Arbeitswerkzeug und einen auf einem Fundament montierten Hochdruck-Hydraulikzylinder aufweist. An einem beweglichen Schlitten der senkrechten Hydraulikpresse ist ein Stempel angebracht. Erfindungsgemäß ist der Stempel in einer auf dem beweglichen Schlitten befestigten Platte gelagert. Mit Schellen ist an zwei der Säulen der senkrechten Hydraulikpresse eine Konsole starr befestigt. Auf der Konsole ist eine Speisevorrichtung montiert, die einen Rollengang aufweist, der mit einer ersten Führungsvorrichtung und einer mit einem Manipulator verbundenen Paketiervorrichtung in Verbindung steht. Die Paketiervorrichtung ist mit dem Manipulator durch einen starr auf ihm befestigten Greifarm verbunden. Auf dem Fundament der Vorrichtung für hydroplastische Bearbeitung sind ein Gegendruckhydraulikzylinder und eine Abführvorrichtung angebracht, die mit einer Abführrinne zur Abführung der Fertigteile verbunden ist. Der Hydraulikzylinder ist gleichachsig zu dem Arbeitswerkzeug der Vorrichtung für hydroplastische Bearbeitung angeordnet. Auf der Oberplatte der Vorrichtung für hydroplastische Bearbeitung sind zwei Ausziehvorrichtungen befestigt. Auf der Grundplatte ist eine zweite Führungsvorrichtung montiert. Auf der Oberplatte, die am beweglichen Schlitten befestigt ist, ist eine dritte Führungsvorrichtung angebracht.This object is achieved by an automatic machine according to claim 1, which consists of a vertical hydraulic press, on the work table of which a device for hydroplastic processing is attached, which has a work tool and a high-pressure hydraulic cylinder mounted on a foundation. A stamp is attached to a movable slide of the vertical hydraulic press. According to the invention, the stamp is mounted in a plate attached to the movable carriage. A bracket is rigidly attached to two of the columns of the vertical hydraulic press with clamps. A feed device is mounted on the console, which has a roller conveyor which is connected to a first guide device and a packaging device connected to a manipulator. The packaging device is connected to the manipulator by a gripper arm rigidly attached to it. On the foundation of the device for hydroplastic processing, a counter-pressure hydraulic cylinder and a discharge device are attached, which is connected to a discharge channel for removing the finished parts. The hydraulic cylinder is arranged coaxially with the working tool of the device for hydroplastic processing. Two pull-out devices are attached to the top plate of the device for hydroplastic processing. A second guide device is mounted on the base plate. A third guide device is attached to the top plate, which is attached to the movable carriage.

Der Rollengang der Speisevorrichtung ist starr an der Konsole befestigt. Die erste Führungsvorrichtung ist mit ihr durch eine Zahnstange und eine Federunterlage verbunden, so daß eine Rinne gebildet wird. Die erste Führungsvorrichtung ist zusammen mit einem ersten waagerechten Hydraulikzylinder starr mit der Konsole verbunden.The roller conveyor of the feed device is rigidly attached to the console. The first guide device is connected to it by a rack and a spring pad, so that a Gutter is formed. The first guide device is rigidly connected to the console together with a first horizontal hydraulic cylinder.

Die Paketiervorrichtung hat einen starr mit der Konsole verbundenen senkrechten Hydraulikzylinder. An seiner Kolbenstange ist ein auswechselbarer Dorn montiert.The packaging device has a vertical hydraulic cylinder rigidly connected to the console. An interchangeable mandrel is mounted on its piston rod.

Am Greifarm sind schwenkbar Backen gelagert, die mit dem Rumpf des Greifarmes verbunden sind. Auf dem Rumpf ist ein dritter waagerechter Hydraulikzylinder befestigt. Am Greifarm ist starr ein Andruckhydraulikzylinder mit Kolben befestigt, an dem eine Führungsschiene montiert ist.Jaws are pivotally mounted on the gripper arm and are connected to the body of the gripper arm. A third horizontal hydraulic cylinder is attached to the fuselage. A pressure hydraulic cylinder with pistons is rigidly attached to the gripper arm, on which a guide rail is mounted.

Auf der Konsole sind sechs senkrechte Säulen starr befestigt, wobei an zwei von ihnen ein Schieber verstellbar angebracht ist. Am Oberteil der senkrechten Säulen ist eine Platte mit einem senkrechten Hydraulikzylinder montiert. Am Schieber sind zwei waagerechte Säulen beweglich montiert, an deren rechten Teil die Trägerplatte des Manipulators starr befestigt ist. Am linken Teil ist starr eine zweite Trägerplatte montiert, auf der ein dritter waagerechter Hydraulikzylinder starr befestigt ist.Six vertical columns are rigidly attached to the console, two of which have an adjustable slide. A plate with a vertical hydraulic cylinder is mounted on the upper part of the vertical columns. Two horizontal columns are movably mounted on the slide, on the right part of which the carrier plate of the manipulator is rigidly attached. A second support plate is rigidly mounted on the left part, on which a third horizontal hydraulic cylinder is rigidly attached.

Der Stempel ist durch ein zweites Axiallager auf der Platte des beweglichen Schlittens gelagert. Am Oberteil des Stempels ist ein Zahnrad unbeweglich montiert. In einem Ringkanal der Platte ist eine zweite Reibscheibe beweglich angebracht, die durch Federn mit dem unbeweglichen Zahnrad verbunden ist.The stamp is supported by a second thrust bearing on the plate of the movable slide. A gear wheel is immovably mounted on the upper part of the stamp. In a ring channel of the plate, a second friction disk is movably attached, which is connected to the stationary gear by springs.

Am Kolben des Gegendruckhydraulikzylinders ist über ein erstes Axiallager eine Kolbenstange gelagert. Am Unterteil der Kolbenstange ist durch eine Nutenfeder und eine Mutter eine Scheibe unbeweglich an gebracht. In einem Ringkanal des Kolbens ist eine erste Reibscheibe beweglich montiert, die durch senkrechte Federn gegen die Scheibe angedrückt ist. Am Vorderteil der Kolbenstange ist ein unteres elastisches Zahnrad befestigt.A piston rod is mounted on the piston of the back pressure hydraulic cylinder via a first axial bearing. On the lower part of the piston rod, a washer is immovably brought to a groove spring and a nut. A first friction disk is movably mounted in an annular channel of the piston and is pressed against the disk by vertical springs. A lower elastic gear is attached to the front part of the piston rod.

Auf dem Fundament der Vorrichtung für hydroplastische Bearbeitung ist eine erste Führungszahnstange der zweiten Führungsvorrichtung beweglich montiert. Mit dieser Zahnstange ist durch seine Kolbenstange ein vierter Hydraulikzylinder schwenkbar verbunden. Am Fundament ist ein erster Rumpf unbeweglich montiert, an dem ein erstes Reibrad beweglich angebracht ist, das seinerseits an eine mit einer ersten Einstellschraube und einer ersten Gegenmutter verbundene erste Feder anliegt. Die erste Einstellschraube ist am Fundament mit einer Gegenmutter befestigt.A first guide rack of the second guide device is movably mounted on the foundation of the device for hydroplastic processing. A fourth hydraulic cylinder is pivotally connected to this rack by its piston rod. A first fuselage is immovably mounted on the foundation, on which a first friction wheel is movably attached, which in turn bears against a first spring connected to a first adjusting screw and a first lock nut. The first adjusting screw is attached to the foundation with a lock nut.

Auf der am beweglichen Schlitten unbeweglich befestigten Platte ist eine zweite Führungszahnstange der dritten Führungsvorrichtung beweglich montiert. Mit ihr ist über seine Kolbenstange ein sechster waagerechter Hydraulikzylinder schwenkbar verbunden. An der Platte ist ein zweiter Rumpf unbeweglich montiert. In ihm ist ein zweites Reibrad beweglich befestigt, das an einer mit einer dritten Einstellschraube und einer zweiten Gegenmutter verbundenen An druckfeder anliegt. Die dritte Einstellschraube ist auf der Platte mit einer Gegenmutter befestigt.A second guide rack of the third guide device is movably mounted on the plate immovably attached to the movable slide. A sixth horizontal hydraulic cylinder is pivotally connected to it via its piston rod. A second fuselage is immovably mounted on the plate. In it, a second friction wheel is movably attached, which rests on a pressure spring connected to a third adjusting screw and a second lock nut. The third adjusting screw is attached to the plate with a lock nut.

Auf dem Fundament der Vorrichtung für hydroplastische Bearbeitung ist ein mit der Abführvorrichtung verbundener waagerechter Hydraulikzylinder befestigt. An seiner Kolbenstange ist ein Abführprisma unbeweglich montiert. Diametral gegenüber ist auf dem Fundament eine Abführrinne unbeweglich angebracht.A horizontal hydraulic cylinder connected to the discharge device is attached to the foundation of the device for hydroplastic processing. A discharge prism is immovably mounted on its piston rod. A drainage channel is immovably attached to the foundation diametrically opposite.

Die beiden Ausziehvorrichtungen sind mit Ausziehbacken ausgerüstet.The two pull-out devices are equipped with pull-out jaws.

Das Arbeitswerkzeug besteht aus einem Satz von Scheibenverformungselementen, die unbeweglich montiert und in einer Bandage abgedichtet sind. Die genannten Elemente sind mit radialen Kanälen versehen, die auf ihren Stirnflächen ausgebildet und mit dem Hochdruckraum des Hydraulikzylinders verbunden sind. Die Scheibenverformungselemente sind mit einem druckseitigen Profil ausgeführt, der dem Profil der zu bearbeitenden Rohlinge entspricht. Die genannten Elemente sind unter einem Winkel a, von 2° bis 12°, der den Eingangsteil bildet, und einem Winkel a2 von 3° bis 15°, der den Ausgangsteil bildet, abgeflacht. Zwischen diesen Teilen ist ein Kalibrierteil mit einer Dicke von 0,5 mm bis 5 mm angeordnet.The work tool consists of a set of disc deformation elements, which are mounted immovably and sealed in a bandage. The elements mentioned are provided with radial channels which are formed on their end faces and are connected to the high-pressure chamber of the hydraulic cylinder. The disk deformation elements are designed with a pressure-side profile that corresponds to the profile of the blanks to be machined. The elements mentioned are flattened at an angle a of 2 ° to 12 ° which forms the input part and an angle a 2 of 3 ° to 15 ° which forms the output part. A calibration part with a thickness of 0.5 mm to 5 mm is arranged between these parts.

Bei einer anderen Ausführung des Arbeitswerkzeugs sind die Scheibenverformungselemente mit glatten Stirnflächen versehen. Die radialen Kanäle sind in Abstandsscheiben ausgebildet, die zwischen den genannten Elementen angeordnet sind.In another embodiment of the work tool, the disk deformation elements are provided with smooth end faces. The radial channels are formed in spacers which are arranged between the elements mentioned.

Bei einer Ausführungsvariante der Vorrichtung für hydroplastische Bearbeitung von Stirnrädern mit Innenverzahnung ist die Vorrichtung mit einem Ausgangs- und einem Eingangszahnkranz versehen, die auf seiner unteren bzw. oberen Platte montiert sind. Zwischen dem Ausgangs-und dem Eingangszahnkranz ist das zu bearbeitende Zahnrad eingesetzt, das in einer dickwandigen Zylinderbüchse eingelegt ist.In one embodiment variant of the device for hydroplastic machining of spur gears with internal teeth, the device is provided with an output and an input ring gear, which are mounted on its lower or upper plate. The gear wheel to be machined, which is inserted in a thick-walled cylinder liner, is inserted between the output and the input ring gear.

Der erfindungsgemäße Automat hat den Vorteil, daß die Endbearbeitung des Zahnprofils von Stirnrädern mit Gerad- und Schraubenverzahnung durchgeführt werden kann, daß die Arbeitsproduktivität gesteigert wird und daß eine völlige Automatisierung des Gesamtprozesses, beginnend mit der Zuführung der Rohlinge bis zu der Abführung der mit hoher Genauigkeit und hohem Gütegrad bearbeiteten Zahnräder mit Grad- und Schraubenverzahnung erzielt wird.The automaton according to the invention has the advantage that the finishing of the tooth profile of spur gears with straight and helical gearing can be carried out, that the productivity of work is increased and that the entire process is completely automated, starting with the feeding of the blanks up to the removal of them with high accuracy and high grade machined gears with straight and helical gearing is achieved.

Anhand der Zeichnungen werden Ausführungsbeispiele der Erfindung näher erläutert. Es zeigen:

  • Fig. 1 eine Seitenansicht eines Automaten für die Bearbeitung von Stirnrädern mit Außenverzahnung;
  • Fig. 2 eine Ansicht in Richtung des Pfeils A von Fig. 1;
  • Fig. 3 den Schnitt B-B von Fig. 1;
  • Fig. 4 den Schnitt A-A von Fig. 2;
  • Fig. 5 den Schnitt C-C von Fig. 3;
  • Fig. 6 den Schnitt D-D von Fig. 3;
  • Fig. 7 perspektivisch einen Teil des druckseitigen Profils eines Scheibenverformungselementes; und
  • Fig.8 8 eine zweite Ausführungsvariante des Arbeitswerkzeugs.
Exemplary embodiments of the invention are explained in more detail with reference to the drawings. Show it:
  • Figure 1 is a side view of an automatic machine for machining spur gears with external teeth.
  • Fig. 2 is a view in the direction of arrow A of Fig. 1;
  • Fig. 3 shows the section BB of Fig. 1;
  • Fig. 4 shows the section AA of Fig. 2;
  • Fig. 5 shows the section CC of Fig. 3;
  • FIG. 6 shows the section DD from FIG. 3;
  • 7 shows in perspective a part of the pressure-side profile of a disk deformation element; and
  • 8 8 shows a second embodiment of the work tool.

Der Automat besteht aus einer senkrechten Hydraulikpresse 1, im folgenden kurz Presse genannt, an dessen beweglichen Schlitten 2 eine Platte 3 unbeweglich befestigt ist. In der Platte 3 ist ein Stempel 4 gelagert, auf dem ein Dorn 5 und ein elastisches Zahnrad unbeweglich aufgesetzt sind.The machine consists of a vertical hydraulic press 1, hereinafter referred to briefly as a press, on the movable carriage 2 of which a plate 3 is immovably fastened. A plunger 4 is mounted in the plate 3, on which a mandrel 5 and an elastic gearwheel are immovably placed.

Auf dem Arbeitstisch 7 der Presse 3 ist eine Vorrichtung 8 für hydroplastische Bearbeitung montiert. An Säulen 9 der Presse 3 ist eine Konsole 10 unbeweglich angebracht und mit Schellen 11 befestigt. Auf der Konsole 10 ist eine Speisevorrichtung montiert, die aus einem Pollengang 12 besteht, der unbeweglich an der Konsole 10 befestigt ist. Durch eine Zahnstange und eine Federunterlage 13 ist eine erste Führungsvorrichtung 15 mit der Konsole 10 verbunden. Die Zahnstange und die Federunterlage 13 sind so zusammengefügt, daß eine Rinne gebildet wird. Die erste Führungsvorrichtung 15 zusammen mit dem ersten waagerechten Hydraulikzylinder 14 ist starr an der Konsole 10 befestigt. Der Rollengang 12 ist mit der ersten Führungsvorrichtung 15 und mit einer Paketiervorrichtung 16 verbunden, die ihrerseits mit einem Manipulator 17 verbunden ist. Der Manipulator 17 besteht aus sechs an der Konsole 10 montierten senkrechten Säulen 18. An zwei von ihnen ist ein Schieber 19 angebracht, der von einem oberen Hydraulikzylinder 20 bewegt wird. Im Schieber 19 sind zwei waagerechte Säulen 21 angebracht, die van einem waagerechten zweiten Hydraulikzylinder 22 in Bewegung gesetzt werden. Mit den waagerechren Säulen 21 ist ein Greifarm 23 starr verbunden, der ein dritten waagerechten Hydraulikzylinder 24, Backen 25 und eine Führungsschiene 26 aufweist. Im Greifarm 23 sind Federn 27 zum Öffnen der Backen 25 angebracht.A device 8 for hydroplastic processing is mounted on the work table 7 of the press 3. A console 10 is immovably attached to columns 9 of the press 3 and fastened with clamps 11. On the console 10, a feed device is mounted, which consists of a pollen passage 12 which is immovably attached to the console 10. A first guide device 15 is connected to the console 10 by a toothed rack and a spring pad 13. The rack and the spring pad 13 are assembled so that a groove is formed. The first guide device 15 together with the first horizontal hydraulic cylinder 14 is rigidly attached to the bracket 10. The roller conveyor 12 is connected to the first guide device 15 and to a packaging device 16, which in turn is connected to a manipulator 17. The manipulator 17 consists of six vertical columns 18 mounted on the console 10. A slide 19 is attached to two of them and is moved by an upper hydraulic cylinder 20. In the slide 19, two horizontal columns 21 are attached, which are set in motion by a horizontal second hydraulic cylinder 22. A gripper arm 23 is rigidly connected to the horizontal columns 21 and has a third horizontal hydraulic cylinder 24, jaws 25 and a guide rail 26. Springs 27 for opening the jaws 25 are attached in the gripper arm 23.

Die Vorrichtung für hydroplastische Bearbeitung 8 besteht aus einem Fundament 28, das stationär auf dem Arbeitstisch 7 der Presse 1 angeordnet ist. Am Fundament 28 ist ein Gegendruckhydraulikzylinder 29 starr befestigt. In ihm sitzt ein Kolben 30, an dem eine Kolbenstange 31 über ein erstes Axiallager 32 gelagert ist. Am Kolben 30 ist eine erste Reibscheibe 33 beweglich angebracht, die von zwei senkrechten Federn 34 an eine Scheibe 35 angedrückt wird. Die Scheibe 35 ist durch eine Nutenfeder 36 und eine Mutter 37 an der Kolbenstange 31 befestigt. Am Fundament 28 ist eine zweite Führungsvorrichtung 36 mit einer ersten Zahnstange 38.1 montiert. Die Zahnstange 38.1 ist durch ein erstes Reibrad 39 mit einer ersten Feder 40, die am Rumpf 41 montiert sind, angedrückt. Der erste Rumpf 41 ist am Fundament 28 starr befessigt. Die erste Feder 40 ist mit einer ersten Einstellschraube 42 und einer ersten Gegenmutter 43 verbunden. Die erste Einstellschraube 42 ist am Fundament 28 mit einer Gegenmutter fixiert.The device for hydroplastic processing 8 consists of a foundation 28 which is arranged stationary on the work table 7 of the press 1. A back pressure hydraulic cylinder 29 is rigidly attached to the foundation 28. A piston 30 is seated in it, on which a piston rod 31 is mounted via a first axial bearing 32. A first friction disk 33 is movably attached to the piston 30 and is pressed against a disk 35 by two vertical springs 34. The disc 35 is fastened to the piston rod 31 by a groove spring 36 and a nut 37. A second guide device 36 with a first rack 38.1 is mounted on the foundation 28. The rack 38.1 is pressed by a first friction wheel 39 with a first spring 40, which are mounted on the fuselage 41. The first fuselage 41 is rigidly attached to the foundation 28. The first spring 40 is connected to a first adjusting screw 42 and a first lock nut 43. The first adjusting screw 42 is fixed to the foundation 28 with a lock nut.

Die führende Zahnstange 38.1 ist mit der Kolbenstange 44 des vierten waagerechten Hydraulikzylinders 45 schwenkbar verbunden. Am Fundament 28 sind eine zweite Einstellschraube 46 und eine Gegenmutter 47 montiert. An der Kolbenstange 31 des Gegendruckhydraulikzylinders 29 ist ein unteres elastisches Zahnrad 48 unbeweglich befestigt. Am Fundament 28 sind Führungssäulen 49 zur exakten Führung der Oberplatte 50 der Vorrichtung für hydroplastische Bearbeitung 8 unbeweglich angeordnet. In der Oberplatte 50 sind Hochdruck-Hydraulikzylinder 51 mit in ihnen beweglich eingelegten Druckkolben 52 angeordnet. Der zwischen den Druckkolben 52 eingeschlossene Raum ist durch ein System von Kanälen 53 und eine Drossel 54 mit einem Deformationsraum verbunden, der zwischen einem Arbeitswerkzeug 55 und einem Satz von Zahnrädern 56 eingeschlossen ist, der seinerseits auf der Oberseite durch ein oberes elastisches Zahnrad 57 abgeschlossen wird. Auf der Oberplatte 50 sind gegenüberliegend zwei Ausziehvorrichtungen 58 angebracht. Jede davon hat einen Ausziehhydraulikzylinder 58.1 und Ausziehbacken 59. In einer zu der Achse des Hydraulikzylinders 58.1 senkrechten Ebene ist am Fundament 28 ein fünfter waagerechter Hydraulikzylinder 60.1 starr angeordnet, der mit einer Abführvorrichtung 60 verbunden ist. An der Kolbenstange des Hydraulikzylinders 60.1 ist ein Abführprisma 61 zum Abführen der Fertigteile in eine Abführrinne 62 unbeweglich angebracht. Die Abführrinne 62 ist diametral gegenüber dem Abführprisma 61 eingesetzt und am Fundament 28 unbeweglich fixiert. Der Stempel 4 ist auf der Platte 3 durch ein zweites Axiallager 63 gelagert. In einem Kanal der Platte 3 ist eine zweite Reibscheibe 64 beweglich montiert. Sie wird von Federn 65 gegen ein unbewegliches Zahnrad 66 gedruckt, das durch eine Nutenfeder 67 unbeweglich gehalten und mit einer Mutter 68 am Stempel 4 befestigt ist. In der Platte 3 ist eine zweite Führungszahnstange 69.1 einer dritten Führungsvorrichtung 69 beweglich angebracht, die von einem zweiten Reibrad 70, das auf einer Druckfeder 71 abgestützt ist, angedrückt wird. Das zweite Reibrad 70 ist in einem zweiten Rumpf 72 beweglich angebracht, der bezüglich der Platte 3 unbeweglich festgelegt ist. Die Druckfeder 71 ist mit einer dritten Einstellschraube 73 und einer zweiten Gegenmutter 74 verbunden. Die dritte Einstellschraube 73 ist mit einer Gegenmutter an der Platte 3 befestigt.The leading rack 38.1 is pivotally connected to the piston rod 44 of the fourth horizontal hydraulic cylinder 45. A second adjusting screw 46 and a lock nut 47 are mounted on the foundation 28. On the piston rod 31 of the counter-pressure hydraulic cylinder 29, a lower elastic gear 48 is immovably attached. Guide pillars 49 for the exact guidance of the top plate 50 of the device for hydroplastic processing 8 are immovably arranged on the foundation 28. High-pressure hydraulic cylinders 51 with pressure pistons 52 movably inserted in them are arranged in the top plate 50. The space enclosed between the pressure pistons 52 is connected by a system of channels 53 and a throttle 54 to a deformation space which is enclosed between a working tool 55 and a set of gear wheels 56, which in turn is closed on the upper side by an upper elastic gear wheel 57 . Two pull-out devices 58 are mounted opposite one another on the top plate 50. Each of them has a pull-out hydraulic cylinder 58.1 and pull-out jaws 59. In a plane perpendicular to the axis of the hydraulic cylinder 58.1, a fifth horizontal hydraulic cylinder 60.1 is rigidly arranged on the foundation 28 and is connected to a discharge device 60. A discharge prism 61 for removing the finished parts into a discharge channel 62 is immovably attached to the piston rod of the hydraulic cylinder 60.1. The discharge channel 62 is inserted diametrically opposite the discharge prism 61 and immovably fixed to the foundation 28. The stamp 4 is mounted on the plate 3 by a second thrust bearing 63. A second friction disk 64 is movably mounted in a channel of the plate 3. It is printed by springs 65 against an immovable gear 66, which is held immovably by a slot spring 67 and fastened to the stamp 4 by a nut 68. In the plate 3, a second guide rack 69.1 of a third guide device 69 is movably attached, which is pressed by a second friction wheel 70, which is supported on a compression spring 71. The second friction wheel 70 is movably mounted in a second fuselage 72, which is fixed immovably with respect to the plate 3. The compression spring 71 is connected to a third adjusting screw 73 and a second lock nut 74. The third adjusting screw 73 is fastened to the plate 3 with a lock nut.

Die zweite Führungszahnstange 69.1 ist mit der Kolbenstange 75 eines sechsten waagerechten Hydraulikzylinders 76 schwenkbar gekoppelt. An der Platte 3 ist eine vierte Einstellschraube 77 mit einer Gegenmutter 78 montiert.The second guide rack 69.1 is pivotally coupled to the piston rod 75 of a sixth horizontal hydraulic cylinder 76. A fourth adjusting screw 77 with a lock nut 78 is mounted on the plate 3.

Die Paketiervorrichtung 16 hat einen senkrechten Hydraulikzylinder 79, der unbeweglich an der Konsole 10 befestigt ist. An seiner Kolbenstange ist ein auswechselbarer Dorn montiert.The packaging device 16 has a vertical hydraulic cylinder 79 which is immovably attached to the console 10. At his A replaceable mandrel is mounted on the piston rod.

Am Greifarm 23 ist en Andrückhydraulikzylinder mit einem Kolben 81 unbeweglich befestigt, an dem die Führungsschiene 26 angebracht ist.On the gripper arm 23, a pressure hydraulic cylinder is immovably attached with a piston 81 to which the guide rail 26 is attached.

Das Arbeitswerkzeug 55 besteht aus Scheibenverformungselementen 82, die unbeweglich montiert und in einer Bandage 83 abgedichtet sind. Die genannten Elemente sind mit radialen Kanälen 84 auf ihren Stirnflächen versehen, die mit dem Hochdruckraum des Hydraulikzylinders 51 verbunden sind. Die Scheibenverformungselemente 82 sind mit einem druckseitigen Profil ausgeführt, das dem Profil der Zahnräder 56 gleichwertig ist. Die genannten Elemente sind unter einem Winkel Q, von 2° bis 12°, der den Eingangsteil 85 bildet, und einem Winkel a2 von 3° bis 15°, der den Ausgangsteil 86 bildet, abgeflacht. Zwischen diesen Teilen ist ein Kalibrierteil 87 mit einem Wert von 0,5 mm bis 5 mm untergebracht.The work tool 55 consists of disk deformation elements 82, which are immovably mounted and sealed in a bandage 83. The elements mentioned are provided with radial channels 84 on their end faces, which are connected to the high-pressure chamber of the hydraulic cylinder 51. The disk deformation elements 82 are designed with a pressure-side profile that is equivalent to the profile of the gear wheels 56. The elements mentioned are flattened at an angle Q of 2 ° to 12 ° which forms the input part 85 and an angle a 2 of 3 ° to 15 ° which forms the output part 86. A calibration part 87 with a value of 0.5 mm to 5 mm is accommodated between these parts.

Bei einer anderen Ausführungsvariante des Arbeitswerkzeugs 55 sind die Scheibenverformungselemente 82 mit glatten Stirnflächen ausgeführt. Die radialen Kanäle 84 sind als Abstandsscheiben 88 ausgebildet, die zwischen den Scheibenverformungselementen 82 angeordnet sind.In another embodiment variant of the working tool 55, the disk deformation elements 82 are designed with smooth end faces. The radial channels 84 are designed as spacer disks 88, which are arranged between the disk deformation elements 82.

Die Maschine arbeitet folgendermaßen: Auf dem Rollengang 12 werden Zahnräder bis zu der Federunterlage 13 ununterbrochen eines nach dem anderen eingegeben. Durch die Kolbenstange des ersten waagerechten Hydaulikzylinders 14 wird ein Zahnrad 56 in die Paketierstellung gebracht. Dabei wird es durch die Zahnstange der ersten Führungsvorrichtung 15 zwangsweise gedreht und geht in die durch die Federunterlage 13 und die Zahnstange gebildete Rinne über. Bei geöffneten Backen 25 wird das Zahnrad 56 von der Kolbenstange des waagerechten Hydraulikzylinders 79 und dem auswechselbaren Dorn 80 angehoben und gerät zwischen die Backen 25, wobei seine Zahnlücke auf die Führungsschiene 26 geführt wird. Es folgt ein Festklemmen der Backen 25 durch die Kolben des dritten waagerechten Hydraulikzylinders 24. Die Kolbenstange des waagerechten Hydraulikzylinders 79 geht in ihre untere Endlage zurück. Der Kolben des ersten waagerechten Hydraulikzylinders 14 liefert einen neuen ausgerichteten Rohling zum Paketieren. Der dritte waagerechte Hydraulikzylinder 24 wird abgeschaltet. Die Bak ken 25 werden unter der Einwirkung der Federn 27 geöffnet. Es folgt eine Bewegung der Zahnstange des senkrechten Hydraulikzylinders 79 nach oben, wobei das neue Zahnrad 56 das vorhergehende anhebt. Beide Zahnräder 56- gelangen zwischen den Backen 25 mit einer von der Führungsschiene 26 ausgerichteten Zahnlücke. Der dritte waagerechte Hydraulikzylinder 24 wird eingeschaltet. Die Backen 25 klemmen das untere Zahnrad 56 fest. Gleichzeitig geht die Kolbenstange des senkrechten Hydraulikzylinders 79 in ihre untere Endlege. Die beschriebenen zyklischen Bewegungen, die nacheinander vom Kolben des ersten waagerechten Hydraulikzylinders 14 und von der Paketiervorrichtung 16 ausgeführt werden, folgen analog, wobei nach jedem Zyklus ein neues Zahnrad 56 in die Backen 25 gelangt. Die Anzahl der Zyklen wird von einem Zykluszähler bestimmt. Er wird auf die Zahl, die der zum Paketieren in den Backen 25 benötigten Anzahl von Zahnrädern entspricht, vorher eingestellt. Das fertige Paket wird vom Manipulator 17 in den Raum der Vorrichtung für hydroplastische Bearbeitung 8 gebracht, wobei es eine rechtwinklige Bahn beschreibt. Die Kolbenstange 31 des GegenThe machine works as follows: on the roller conveyor 12, gearwheels are continuously inserted one by one up to the spring pad 13. A gear 56 is brought into the packaging position by the piston rod of the first horizontal hydraulic cylinder 14. It is forcibly rotated by the rack of the first guide device 15 and merges into the groove formed by the spring pad 13 and the rack. When the jaws 25 are open, the gear wheel 56 is raised by the piston rod of the horizontal hydraulic cylinder 79 and the exchangeable mandrel 80 and comes between the jaws 25, its tooth gap being guided onto the guide rail 26. The jaws 25 are clamped by the pistons of the third horizontal hydraulic cylinder 24. The piston rod of the horizontal hydraulic cylinder 79 returns to its lower end position. The piston of the first horizontal hydraulic cylinder 14 delivers a new aligned blank for packaging. The third horizontal hydraulic cylinder 24 is switched off. The Bak ken 25 are opened under the action of the springs 27. The rack of the vertical hydraulic cylinder 79 moves upward, the new gear 56 lifting the previous one. Both gearwheels 56 - reach between the jaws 25 with a tooth gap aligned by the guide rail 26. The third horizontal hydraulic cylinder 24 is switched on. The jaws 25 clamp the lower gear 56. At the same time, the piston rod of the vertical hydraulic cylinder 79 goes into its lower end position. The cyclical movements described, which are carried out successively by the piston of the first horizontal hydraulic cylinder 14 and by the packaging device 16, follow analogously, with a new gear wheel 56 coming into the jaws 25 after each cycle. The number of cycles is determined by a cycle counter. It is previously set to the number corresponding to the number of gears required for packaging in the jaws 25. The finished package is brought into the space of the hydroplastic processing device 8 by the manipulator 17, describing a right-angled path. The piston rod 31 of the counter

druckhydraulikzylinders 29 befindet sich in der oberen Endstellung, wobei die obere Stirnseite des unteren elastischen Zahnrads 48 in der Ebene der oberen Stirnseite der Oberplatte 50 liegt. Der Schlitten 2 wird nach unten in Bewegung gesetzt. Der Dorn 5 wird in die Öffnung des Zahnrädersatzes 56 eingeführt. Dabei wird der Schlitten 2 vor der Berührung der unteren Stirnseite des oberen elastischen Zahnrads 57 mit dem Zahnrädersatz 56 angehalten. Die Backen 25 werden geöffnet. Der Kolben des Andruckhydraulikzylinders 81 bewegt die Führungsschiene 26 in die Zahnlücke des Zahnrädersatzes 56 und des oberen elastischen Zahnrads 57 zur exakten Ausrichtung gegenüber dem Arbeitswerkzeug 55. Es folgt eine Bewegung der Schlitten 2 nach unten, wobei der Zahnrädersatz 56 in das Arbeitswerkzeug 55 eintritt. Dabei schließt das untere elastische Zahnrad 48 den Verformungsraum ab und verhindert das Ausfließen der Schmierflüssigkeit, die unter Hochdruck eintritt, der in den Hochdruck-Hydraulikzylindern unter Einwirkung der Verformungskraft entstanden ist. Gleichzeitig mit dem Schlitten 2 bewegt sich die Kolbenstange 31 des Gegendruckhydraulikzylinders 29 nach unten. In dar unteren Endstellung des Schlittens 2 gelangt der Zahnrädersatz 56 an die obere Stirnseite des Fundaments 28. Das untere elastische Zahnrad 48 tritt in eine Öffnung des Fundaments 28 ein, wobei seine obere Stirnseite mit der des Fundaments 28 fluchtet. Die Ausziehbacken 59 werden von den Ausziehhydraulikzylindern 58.1 der Ausziehvorrichtung nach vorn bewegt und klemmen das oberste Zahnrad aus dem Zahnrädersatz 56 fest. Es folgt eine Bewegung des Schlittens 2 nach oben, wobei der Dorn 5 zusammen mit dem oberen elastischen Zahnrad 57 zurück durch das Arbeitswerkzeug 55 hindurchgeht und in der oberen Endstellung anhält. Die Ausziehhydraulikzylinder 58.1 der Ausziehvorrichtung 58 geben das oberste Zahnrad 56 durch ein Zurückgehen der Ausziehbacken 59 frei. Der fünfte waagerechte Hydraulikzylinder 60.1 bewegt durch das Abführprisma 61 den Zahnrädersatz 56 in der Abführrinne 62 und bringt das Abführprisma 61 wieder in die hintere Endstellung zurück. Gleichzeitig mit dem Bearbeitungsbeginn geht der Manipulator 17 auf einer rechtwinkligen Bahn zurück. Die Backen 25 gehen in die Ausgangsstellung; wobei eine Paketierung des neuen Zahnrädersatzes 56 während der Bearbeitung ausgeführt wird. Damit wird eine maximale Anpassung der Arbeits- und der Hilfsprozesse erreicht. Nach dem Durchgang des Zahnrädersatzes 56 durch das Arbeitswerkzeug 55 wird die Wirkung der Verformungskraft beseitigt. Dabei füllt die von einem äußeren Hydraulikschrank zugeführte Schmierflüssigkeit die Hochdruck-Hydraulikzylinder 51 und hebt die Oberplatte 50 bis zur Ausgangsstellung an, die von den Führungssäulen 49 begrenzt ist.The pressure hydraulic cylinder 29 is in the upper end position, the upper end face of the lower elastic gear 48 lying in the plane of the upper end face of the top plate 50. The carriage 2 is set in motion downwards. The mandrel 5 is inserted into the opening of the gear set 56. The carriage 2 is stopped before the lower end face of the upper elastic gear 57 with the gear set 56. The jaws 25 are opened. The piston of the pressure hydraulic cylinder 81 moves the guide rail 26 into the tooth gap of the gear set 56 and the upper elastic gear 57 for exact alignment with respect to the work tool 55. The carriages 2 move downward, the gear set 56 entering the work tool 55. The lower elastic gear 48 closes the deformation space and prevents the outflow of the lubricant that occurs under high pressure, which has arisen in the high-pressure hydraulic cylinders under the action of the deformation force. Simultaneously with the slide 2, the piston rod 31 of the counter-pressure hydraulic cylinder 29 moves downward. In the lower end position of the slide 2, the gear set 56 reaches the upper end face of the foundation 28. The lower elastic gear 48 enters an opening in the foundation 28, its upper end face being aligned with that of the foundation 28. The pull-out jaws 59 are moved forward by the pull-out hydraulic cylinders 58. 1 of the pull-out device and clamp the top gear from the gear set 56. The carriage 2 moves upwards, the mandrel 5, together with the upper elastic gearwheel 57, passing back through the working tool 55 and stopping in the upper end position. The pull-out hydraulic cylinders 58.1 of the pull-out device 58 release the uppermost gearwheel 56 by retracting the pull-out jaws 59. The fifth horizontal hydraulic cylinder 60.1 moves the gear set 56 in the discharge channel 62 through the discharge prism 61 and brings the discharge prism 61 back into the rear end position. Simultaneously with the start of processing, the manipulator 17 returns on a rectangular path. The jaws 25 go into the starting position; being a packaging of the new en gear set 56 is executed during machining. This ensures maximum adaptation of the work and auxiliary processes. After the gear set 56 has passed through the working tool 55, the effect of the deformation force is eliminated. The lubricating fluid supplied from an external hydraulic cabinet fills the high-pressure hydraulic cylinders 51 and lifts the top plate 50 up to the starting position, which is delimited by the guide columns 49.

Die gelagerten Stempel 4 und Kolben 31 des Gegendruck-Hydraulikzylinders 29 erlauben eine Selbstjustierung des Zahnrädersatzes 56 ge genüber den Zahnlücken des Arbeitswerkzeugs 55 während des Bearbeitungsprozesses. Die erste Federunterlegklemmscheibe 33 und die zweite Federunterlegklemmscheibe 64 machen den Stempel 4 und die Kolbenstange 31 unbeweglich, wenn keine Bearbeitung stattfindet.The stored ram 4 and piston 31 of the counter-pressure hydraulic cylinder 29 allow self-adjustment of the toothed wheel set 56 compared to the tooth gaps of the working tool 55 during the machining process. The first spring washer 33 and the second spring washer 64 immobilize the punch 4 and the piston rod 31 when no machining is taking place.

Diese Arbeitsweise wird bei der Bearbeitung von Stirnrädern mit Geradverzahnung verwendet.This method of working is used when machining spur gears with straight teeth.

Bei der Bearbeitung von Stirnrädern mit Schraubenverzahnung ist der automatische Zyklus der gleiche, die Kante der Führungsschiene 26 bildet jedoch eine Schraubenlinie. Bei der Bewegung des Schlittens 2 nach unten erfolgt die Bearbeitung, wobei die Zähne des Zahnrädersatzes 56 in den Zahnlücken des Arbeitswerkzeugs 55 geführt werden, wobei sich der Stempel 4 und die Kolbenstange 31 frei um die gemeinsame Achsebewegen. Dabei befinden sich die erste 38.1 und die zweite 69.1 Führungszahnstange in der hinteren Endstellung. Die zweite Führungszahnstange 69.1 ist von dem unbeweglichen Zahnrad 66 außer Eingriff gebracht. Nach der Trennung der oberen Stirnseite des oberen elastischen Zahnrads 52 von der unteren Stirnseite des Arbeitswerkzeugs 55 wird die Drehbewegung des Sternpels 4 und der Kolbenstange 31 eingestellt, bis der Zahnrädersatz 56 auf der oberen Stirnseite des Fundaments 28 stehenbleibt und das untere elastische Zahnrad 48 in die Öffnung des Fundaments 28 gelangt. Es folgt eine Bewegung des Schlittens 2 nach oben, wobei das obere elastische Zahnrad 57 durch das Arbeitswerkzeug 55 hindurchgeht. Nach seiner Bewegung bleibt der Schlitten 2 in der oberen Endstellung. Es folgt eine Bewegung der ersten Führungszahnstange 38.1 nach vorn durch die Kolbenstange 44 des vierten waagerechten Hydraulikzylinders 45, wobei die erste Führungszahnstange 38.1 das untere elastische Zahnrad 48 so andreht, daß es gegenüber der Zahnlücke des Arbeitswerkzeugs 55 ausgerichtet wird. Die zweite Führungszahnstange 69.1 wird von dem sechsten waagerechten Hydraulikzylinder 76 durch die Kolbenstange 75 in Bewegung gesetzt, wobei die Funktionen der vierten Einstellschraube 77 mit einer Gegenmutter 78 sowie des zweiten Reibrads 70 mit der Druckfeder 71, der dritten Einstellschraube 73 und der zweiten Gegenmutter 74 analog der obenbeschriebenen sind. Nach Einschalten des Arbeitsgangs des Stempels 4 und nach dem Eingreifen des Zahnrädersatzes 56 in das Arbeitswerkzeug 55 erfolgt ein Zurückgehen der zweiten Zahnstangenführung 69.1 in die hintere Endlage, wobei sie mit dem stationären Zahnrad 66 außer Eingriff gebracht wird.When machining helical gears with helical gearing, the automatic cycle is the same, but the edge of the guide rail 26 forms a helical line. When the carriage 2 moves downward, the machining takes place, the teeth of the toothed wheel set 56 being guided in the tooth gaps of the working tool 55, the plunger 4 and the piston rod 31 moving freely around the common axis. The first 38.1 and the second 69.1 guide rack are in the rear end position. The second guide rack 69.1 is disengaged from the stationary gear 66. After the upper end face of the upper elastic gear 52 has been separated from the lower end face of the working tool 55, the rotational movement of the star point 4 and the piston rod 31 is adjusted until the toothed wheel set 56 stops on the upper end face of the foundation 28 and the lower elastic gear 48 into the Opening of the foundation 28 arrives. The carriage 2 moves upwards, the upper elastic gear 57 passing through the working tool 55. After its movement, the carriage 2 remains in the upper end position. There follows a movement of the first guide rack 38.1 forwards through the piston rod 44 of the fourth horizontal hydraulic cylinder 45, the first guide rack 38.1 turning the lower elastic gear 48 so that it is aligned with the tooth gap of the working tool 55. The second guide rack 69.1 is set in motion by the sixth horizontal hydraulic cylinder 76 through the piston rod 75, the functions of the fourth adjusting screw 77 with a lock nut 78 and the second friction wheel 70 with the compression spring 71, the third adjusting screw 73 and the second lock nut 74 being analogous of those described above. After switching on the operation of the punch 4 and after the engagement of the gear set 56 in the working tool 55, the second rack guide 69.1 returns to the rear end position, whereby it is disengaged from the stationary gear 66.

Nach dem Stehenbleiben der Kolbenstange 31 in der oberen Endlage erfolgt ein Zurückgehen der ersten Führungszahnstange 38.1 in die hintere Endlage.After the piston rod 31 has stopped in the upper end position, the first guide rack 38.1 returns to the rear end position.

Claims (13)

1. Self-acting machine for the hydroplastic shaping of spur gears consisting of a vertical hydraulic press (1), on whose worktable (7) is mounted a device (8) for hydroplastic shaping having a work tool (55) and a high pressure hydraulic cylinder (29) mounted on a base (28), a die (4) being anchored in a mobile carriage (7), characterised in that the die (4) is mounted in a plate (3) mounted immoveably in relation to the moveable carriage (2), in that there is rigidly attached with clips (11) to two of the supports of the vertical hydraulic press a cantilever (10) on which there is mounted a feed device with a roller bed (12) connected to a first guide device (15) and a packaging device (16) connected to a manipulator (17) by a gripper arm (23) immoveably attached to it, in that there are mounted on the base (28) of the device for hydroplastic shaping a counterpressure hydraulic cylinder (29) and a remowal device (60) which is connected to a discharge duct (62) to carry away the finished parts, the hydraulic cylinder (29) being arranged on a common axis in relation to the work tool (55) of the device for hydroplastic shaping, in that two extraction devices (58) are secured to a top plate (50) of the device for hydroplastic shaping, in that a second guide device (38) is mounted on its base (28), and in that set on the plate (3) which is attached to the mobile carriage (2) is a third guide device (69).
2. Self-acting machine according to claim 1, characterised in that the roller bed (12) of the feed device is secured immoveably to the cantilever (10) and in that the first guide device (15) is connected to it by a toothed rack and a spring pad (13) which are attached so as to produce a duct, the first guide device (15) being rigidly secured to the cantilever (10) together with the first horizontal hydraulic cylinder (14).
3. Self-acting machine according to claim 1 or 2, characterised in that the packaging device (16) has a vertical hydraulic cylinder immoveably secured to the cantilever (10), and in that a replaceable mandrel (80) is attached to its piston rod.
4. Self-acting machine according to one of claims 1 to 3, characterised in that there are pivotably mounted on the gripper arm (23) jaws (25) connected to the body of the gripper arm (23) to which a third horizontal hydraulic cylinder (24) is secured, a contact pressure hydraulic cylinder with a piston (81) being fixed in position on the gripper arm (23), and a guide rail (76) being seated on the piston.
5. Self-acting machine according to one of claims 1 to 4, characterised in that there are rigidly secured to the cantilever (10) six vertical supports (18), a slide member (19) being attached to two of them so as to be capable of movement, and in that mounted on the top part of the vertical supports (18) is a plate with an upper vertical hydraulic cylinder (20), there being moveably attached to the slide member (19) two horizontal supports (21) to one part of which (the right hand part) the carrier plate of the manipulator (17) is immoveably attached and to the other part of which (the left hand part) there is immoveably fixed in position a second carrier plate to which a third horizontal hydraulic cylinder is rigidly attached.
6. Self-acting machine according to one of claims 1 to 5, characterised in that the die (4) is mounted on the plate (1) of the carriage (2) by means of a second axial bearing (63) and in that there is seated on the top part of the die (4) an immobile toothed wheel (66), there being moveably mounted in an annular groove of the plate (3) a second friction disc which is connected to the immobile toothed wheel (66) via springs (65).
7. Self-acting machine according to one of claims 1 to 6, characterised in that a piston rod (31) is mounted on the piston (30) of the counterpressure hydraulic cylinder (29) by means of a first axial bearing (32), a disc (35) being immoveably fixed in position on its lower end via a slot spring (36) and a nut (37), in that there is moveably located in an annular groove of the piston (30) a first friction disc (33) which is pressed against the disc (35) by vertical springs (34), and in that a lower elastic toothed wheel (48) is mounted on the front part of the piston rod (31).
8. Self-acting machine according to one of claims 1 to 7, characterised in that a first guide toothed rack (38.1) of the second guide device (38) is moveably attached to the base (28) of the device for hydroplastic shaping, in that a first horizontal hydraulic cylinder (45) is connected to it via its piston rod (44), and in that there is immoveably mounted on the base (78) a first body (41) in which there is moveably secured a first friction wheel (39) which is supported against a first spring (40) connected to a first adjusting screw (42) and to a lock nut (43), the first adjusting screw (46) being attached to the base (28) with a lock nut.
9. Self-acting machine according to one of claims 1 to 8, characterised in that there is immoveably fixed in position on the plate (3), immobile in relation to the carriage (2), a second guide toothed rack (69.1) of the third guide device (69), in that a sixth horizontal hydraulic cylinder (76) is pivotably connected to it by means of its piston rod (75), and in that there is immoveably attached to the plate (3) a second body (72) in which there is moveably secured a second friction wheel (70) supported against a compression spring (71) which is connected to a third adjusting screw (73) and to a second lock nut (74), the third adjusting screw (73) being secured to the plate with a lock nut.
10. Self-acting machine according to one of claims 1 to 9, characterised in that immoveably secured to the base (28) of the device for hydroplastic shaping is a fifth horizontal hydraulic cylinder (60.1) which is connected to the remowal device (60), to the piston rod of which there is immoveably attached a discharging prism (61), and diametrically opposite it there is immoveably mounted on the base (28) a discharge duct (62).
11. Self-acting machine according to one of claims 1 to 10, characterised in that both extraction devices (58) are provided with extraction jaws (59).
12. Self-acting machine according to one of claims 1 to 11, characterised in that the work tool (55) consists of a set of disc working elements (82) which are immoveably attached and are sealed in a band (83), said elements being provided with radial grooves (84) formed on their faces and connected to the high pressure chamber of the high pressure hydraulic cylinder (51), the contour, on the pressure side, of the disc working elements (82) corresponding to the contour of the toothed wheels to be shaped (56), and said elements being bevelled with an angle a, of 2° to 12°, forming the entry part (85), and with an angle a2 of 3° to 15°, forming the exit part (86), and between these parts there is a arranged a calibrating part (87), the thickness of which is 0.5 mm to 5 mm.
13. Self-acting machine according to one of claims to 11, characterised in that the disc working elements (82) are provided with smooth faces, and in that radial grooves (84) are provided in shims (88) arranged between the disc working elements (87).
EP85105148A 1984-04-27 1985-04-26 Automatic apparatus for the hydroplastic shaping of spur pinions Expired EP0163922B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BG8465277A BG38811A1 (en) 1984-04-27 1984-04-27 Automate for hydroplastic processing of cylindric toothed wheel
BG65277/84 1984-04-27

Publications (3)

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EP0163922A2 EP0163922A2 (en) 1985-12-11
EP0163922A3 EP0163922A3 (en) 1987-10-07
EP0163922B1 true EP0163922B1 (en) 1989-07-12

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EP (1) EP0163922B1 (en)
JP (1) JPS60247435A (en)
BG (1) BG38811A1 (en)
DD (1) DD256610A7 (en)
DE (1) DE3571404D1 (en)
HU (1) HUT37896A (en)
SU (1) SU1593974A1 (en)
UA (1) UA7011A1 (en)

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Publication number Priority date Publication date Assignee Title
WO2017137258A1 (en) 2016-02-11 2017-08-17 Ecoroll Ag Werkzeugtechnik Rolling device for rolling work pieces having a toothing, and associated method
DE102016102429A1 (en) * 2016-02-11 2017-08-17 Ecoroll Ag Werkzeugtechnik Rolling device for rolling workpieces with toothing and associated method
DE102016102429B4 (en) * 2016-02-11 2021-02-11 Ecoroll Ag Werkzeugtechnik Rolling device for rolling workpieces with toothing and the associated process
US11638981B2 (en) 2016-02-11 2023-05-02 Ecoroll Ag Werkzeugtechnik Rolling device for rolling work pieces having a toothing, and associated method

Also Published As

Publication number Publication date
BG38811A1 (en) 1986-03-14
EP0163922A2 (en) 1985-12-11
SU1593974A1 (en) 1990-09-23
DD256610A7 (en) 1988-05-18
UA7011A1 (en) 1995-03-31
HUT37896A (en) 1986-03-28
JPS60247435A (en) 1985-12-07
DE3571404D1 (en) 1989-08-17
EP0163922A3 (en) 1987-10-07

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