EP0032518A1 - Presse de transformation avec un dispositif de came - Google Patents

Presse de transformation avec un dispositif de came Download PDF

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Publication number
EP0032518A1
EP0032518A1 EP80100237A EP80100237A EP0032518A1 EP 0032518 A1 EP0032518 A1 EP 0032518A1 EP 80100237 A EP80100237 A EP 80100237A EP 80100237 A EP80100237 A EP 80100237A EP 0032518 A1 EP0032518 A1 EP 0032518A1
Authority
EP
European Patent Office
Prior art keywords
cam
forming press
adjusting
press according
shaft
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.)
Granted
Application number
EP80100237A
Other languages
German (de)
English (en)
Other versions
EP0032518B1 (fr
Inventor
Walter Ing. Grad. Flamme
Oskar Ing. Grad. Rahn
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.)
L Schuler GmbH
Original Assignee
L Schuler GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by L Schuler GmbH filed Critical L Schuler GmbH
Priority to DE8080100237T priority Critical patent/DE3066531D1/de
Priority to EP80100237A priority patent/EP0032518B1/fr
Priority to AT80100237T priority patent/ATE6214T1/de
Publication of EP0032518A1 publication Critical patent/EP0032518A1/fr
Application granted granted Critical
Publication of EP0032518B1 publication Critical patent/EP0032518B1/fr
Expired legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G21/00—Mechanical apparatus for control of a series of operations, i.e. programme control, e.g. involving a set of cams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/05—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work specially adapted for multi-stage presses
    • 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
    • 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
    • B21K27/00—Handling devices, e.g. for feeding, aligning, discharging, Cutting-off means; Arrangement thereof
    • B21K27/02—Feeding devices for rods, wire, or strips
    • B21K27/04—Feeding devices for rods, wire, or strips allowing successive working steps

Definitions

  • the invention relates to a forming press, in particular a multi-stage press, with a control cam device, for example for actuating gripper tongs for transporting a workpiece from one step to the next or from a shear station to the press step, for actuating a shear knife or the ejector pin of an ejector device
  • the control cam device has a control shaft with at least one cam plate releasably attached to it, on which an actuator runs or rolls.
  • Forming presses in particular multi-stage presses, usually have a series of gripper tongs for the transport of the workpiece from one stage to the next or from the shear station to the first pressing stage, the movement of which is effected via a control cam device.
  • This cam device consists of a control shaft driven by the forming press and one, but usually several cam disks attached to this shaft. The cams are fastened via supports connected to the control shaft, which are provided with Hirth teeth. In this way, the cams can be rotated relative to the control shaft after loosening fasteners and thus the movement of the gripper tongs can be postponed.
  • cam sets are arranged on the control shaft instead of individual cam disks, each cam disk set consisting of two closely spaced cam disks of mostly the same shape, on which the control element for actuating the gripper pliers runs simultaneously.
  • These two cams can not only be rotated relative to the control shaft, but also against each other, which can also increase the length of time the gripper tongs stay in the press room.
  • the dwell time can also be increased by additionally assigning an intermediate washer to the cam disk set, which is usually located between the two cam disks and has a cam disk segment for bridging the gap that results when the two cam disks are rotated strongly.
  • control cam devices designed in this way can also be used for other purposes, for example for controlling the shear knife or the ejector pin.
  • the turning of the cam disks relative to the control shaft and against each other must be done manually in the previously known forming presses after loosening one Series of fasteners happen. As is not necessary to explain this in detail, this is cumbersome and takes a lot of time, particularly in the case of multi-stage presses.
  • the invention is therefore based on the task of simplifying and shortening the adjustment process with respect to the cam disks.
  • the cam disc (s) can be connected to the control shaft via a clamping device which can be acted upon by a pressure medium, and can be coupled via a coupling device with at least one adjusting motor for rotating the cam disc (s) relative to the control shaft.
  • the cam disks can be rotated relative to the control shaft by actuating an adjusting motor, the connection between the cam disks and the control shaft being able to be released or re-established quickly by appropriate pressurizing of the clamping device.
  • At least one cam disk set each with two cam disks which are close together but can be rotated relative to one another, is arranged on the control shaft, each of the two cam disks being connectable to the adjusting motor via its own coupling device. In this way, not only can the activation of the respective control member be postponed, but also its duration can be influenced. If necessary, several sets of cams can be arranged on the control shaft.
  • an intermediate disk with a cam segment is arranged, which with a driver pin fits into elongated holes in the two cam disks enlarge further.
  • the coupling device consists of a gear wheel connected to the cam disk and a meshing adjusting pinion which can be coupled to an adjusting shaft driven by the adjusting motor.
  • Each pinion can be connected to the drive shaft via a magnetically switchable tooth coupling.
  • all pinions should sit side by side on a drive shaft which is driven by an adjusting motor, so that only this one motor is required.
  • the clamping device is designed as a hydraulic clamping sleeve, wherein a clamping sleeve can be provided for each cam disk or cam disk set.
  • the invention further provides that the adjustment motor is designed as a servomotor, which is expediently combined with an incremental encoder, so that the respective adjustment process can be monitored precisely.
  • FIG. 1 shows a control cam device 1 of a five-stage press for the control of gripper tongs (not shown here), which is intended to transport a workpiece from one stage to the next.
  • the control cam device 1 has a control shaft 5 which is mounted in the roller bearings 2, 3 in the machine frame 4 and on which a total of five sets of cam plates 6, 7, 8, 9, 10 are arranged. These sets of cams 6, 7, 8, 9, 10 are firmly connected to the control shaft 5 during operation of the five-stage press, but can be detached from it for the adjustment.
  • each cam disk set 6, 7, 8, 9, 10 consists of two cam disks and an intermediate disk, each cam disk being connected to a spur gear 11 to 20.
  • spur gears 11 to 20 each mesh with an adjusting pinion 21 to 30, which are mounted on an adjusting shaft 31 arranged next to the control shaft 5.
  • a magnetically switchable Tooth coupling 32 to 41 provided for each of these adjustment pinions 21 to 30.
  • the respective pinion 21 to 30 is entrained by the adjusting shaft 31 by electrical control of these toothed clutches 32 to 41, whereby it rotates the spur gear 11 to 20 meshing with it and the cam disk connected to it relative to the control shaft 5.
  • the adjusting shaft 31 has a drive gear 42 at the upper end, which meshes with a drive pinion 44 seated on the motor shaft 43.
  • the motor shaft 44 is connected at one end via an elastic coupling 45 to a servomotor 46 and at the other end to an incremental encoder 47 which serves to display the respective position of the motor shaft 44. With the help of the servomotor 46, the cams can be rotated, the toothed clutches 32 to 41 of which are controlled.
  • FIG. 2 shows a cross section through the bottom 10 of the cam disk sets 6, 7, 8, 9, 10 shown in FIG. 1, from which the structure thereof can be seen.
  • the cam disk set 10 consists of two cam disks 48, 49, which are screwed to the adjacent spur gear 19, 20 by means of driving pins 50, 51 and screws 52.
  • the spur gears 19, 20 can be connected to the control shaft 5 via a common clamping sleeve 53 if the latter is hydraulically loaded via an axial oil supply line 54 and a radial branch 55.
  • An intermediate disk 56 is arranged between the two cam disks 48, 49 and is connected to the cam disks 48, 49 only via a further driver pin 57.
  • This - mean same - driver pin 57 each in a circumferential slot, as shown in Figure 3, which shows a side view of the cam set 10.
  • the elongated holes 61, 62 already mentioned are provided in the two cam disks 48, 49, which accordingly restrict the freedom of movement of the intermediate disk 56 via the driving pin 57.
  • this driver pin 57 is framed by the opposite ends of the elongated holes 61, 62.
  • FIG. 2 also shows that the two spur gears 19, 20 for adjusting the cams 48, 49 are in engagement with the two adjusting pinions 29, 30, which are mounted on the adjusting shaft 31 via roller bearings 63. When the forming press is in operation, they accordingly rotate with the cam disks 48, 49 or their spur gears 19, 20.
  • the adjustment pinions 29, 30 are each independently coupled to the adjusting shaft 31 via the toothed couplings 40, 41. If only one of the two toothed clutches 40, 41 intended for cam disk set 10 is actuated, then only one cam disk 48, 49 is rotated relative to control shaft 5, so that the cam flank widens. If, on the other hand, both tooth clutches 40, 41 are actuated at the same time, only an angular displacement occurs without changing the cam shape.
  • cam disk sets 6, 7, 8, 9 also shown in FIG. 1 are designed in exactly the same way as the cam disk set 10 shown in more detail in FIG. 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Press Drives And Press Lines (AREA)
  • Transmission Devices (AREA)
  • Forging (AREA)
EP80100237A 1980-01-18 1980-01-18 Presse de transformation avec un dispositif de came Expired EP0032518B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE8080100237T DE3066531D1 (en) 1980-01-18 1980-01-18 Transforming-press with a cam device
EP80100237A EP0032518B1 (fr) 1980-01-18 1980-01-18 Presse de transformation avec un dispositif de came
AT80100237T ATE6214T1 (de) 1980-01-18 1980-01-18 Umformpresse mit einer steuerkurveneinrichtung.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP80100237A EP0032518B1 (fr) 1980-01-18 1980-01-18 Presse de transformation avec un dispositif de came

Publications (2)

Publication Number Publication Date
EP0032518A1 true EP0032518A1 (fr) 1981-07-29
EP0032518B1 EP0032518B1 (fr) 1984-02-15

Family

ID=8186573

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80100237A Expired EP0032518B1 (fr) 1980-01-18 1980-01-18 Presse de transformation avec un dispositif de came

Country Status (3)

Country Link
EP (1) EP0032518B1 (fr)
AT (1) ATE6214T1 (fr)
DE (1) DE3066531D1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2608949A1 (fr) * 1986-12-31 1988-07-01 Garlaschi Eufemia Dispositif pour le changement rapide de came dans une presse destinee a la production de rivets et similaires
EP1138414A1 (fr) * 2000-04-01 2001-10-04 Schumag Aktiengesellschaft Arrangement d'arbre à cames et galet suiveur de came, transport transversal, presse à étages multiples et methode pour l'ajustement du profile d'une came
CN103192009A (zh) * 2013-03-13 2013-07-10 上海明隽电子有限公司 可调式打头机撞头凸轮
KR102346475B1 (ko) * 2021-08-26 2022-01-03 효동기계공업(주) 캠 자동 조절장치

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1236913B (de) * 1961-08-29 1967-03-16 Nat Machinery Co Querfoerdereinrichtung an Mehrstufenpressen
DE2131759A1 (de) * 1970-06-26 1971-12-30 Nat Machinery Co Transporteinrichtung fuer eine Quertransportpresse
DE2549319A1 (de) * 1975-11-04 1977-05-12 Malmedie & Co Maschf Quertransporteinrichtung an einer mehrstufenpresse
DE2039697B2 (de) * 1969-08-15 1979-07-19 Aerpat Ag, Zug (Schweiz) Mehrstufige Formmaschine, insbesondere Mehrstufenpresse

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1236913B (de) * 1961-08-29 1967-03-16 Nat Machinery Co Querfoerdereinrichtung an Mehrstufenpressen
DE2039697B2 (de) * 1969-08-15 1979-07-19 Aerpat Ag, Zug (Schweiz) Mehrstufige Formmaschine, insbesondere Mehrstufenpresse
DE2131759A1 (de) * 1970-06-26 1971-12-30 Nat Machinery Co Transporteinrichtung fuer eine Quertransportpresse
DE2549319A1 (de) * 1975-11-04 1977-05-12 Malmedie & Co Maschf Quertransporteinrichtung an einer mehrstufenpresse

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2608949A1 (fr) * 1986-12-31 1988-07-01 Garlaschi Eufemia Dispositif pour le changement rapide de came dans une presse destinee a la production de rivets et similaires
EP1138414A1 (fr) * 2000-04-01 2001-10-04 Schumag Aktiengesellschaft Arrangement d'arbre à cames et galet suiveur de came, transport transversal, presse à étages multiples et methode pour l'ajustement du profile d'une came
CN103192009A (zh) * 2013-03-13 2013-07-10 上海明隽电子有限公司 可调式打头机撞头凸轮
CN103192009B (zh) * 2013-03-13 2016-08-17 上海明隽电子有限公司 可调式打头机撞头凸轮
KR102346475B1 (ko) * 2021-08-26 2022-01-03 효동기계공업(주) 캠 자동 조절장치

Also Published As

Publication number Publication date
ATE6214T1 (de) 1984-03-15
DE3066531D1 (en) 1984-03-22
EP0032518B1 (fr) 1984-02-15

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