US3726123A - Forging press with adjustable working gap - Google Patents

Forging press with adjustable working gap Download PDF

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Publication number
US3726123A
US3726123A US00184378A US3726123DA US3726123A US 3726123 A US3726123 A US 3726123A US 00184378 A US00184378 A US 00184378A US 3726123D A US3726123D A US 3726123DA US 3726123 A US3726123 A US 3726123A
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US
United States
Prior art keywords
press
sleeve
force
hammer
transmitting member
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 - Lifetime
Application number
US00184378A
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English (en)
Inventor
W Bothe
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.)
HASENCLEVER MASCHF GmbH
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HASENCLEVER MASCHF 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 HASENCLEVER MASCHF GmbH filed Critical HASENCLEVER MASCHF GmbH
Application granted granted Critical
Publication of US3726123A publication Critical patent/US3726123A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/26—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks
    • B30B1/263—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks work stroke adjustment means
    • 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
    • B21J9/10—Drives for forging presses
    • B21J9/18—Drives for forging presses operated by making use of gearing mechanisms, e.g. levers, spindles, crankshafts, eccentrics, toggle-levers, rack bars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/0029—Details of, or accessories for, presses; Auxiliary measures in connection with pressing means for adjusting the space between the press slide and the press table, i.e. the shut height
    • B30B15/0035—Details of, or accessories for, presses; Auxiliary measures in connection with pressing means for adjusting the space between the press slide and the press table, i.e. the shut height using an adjustable connection between the press drive means and the press slide

Definitions

  • the sleeve is designed in part as a worm wheel meshing with a worm which is rotatable, via an articulated telescoping shaft, by a servomotor fixedly mounted on the press frame.
  • the pressure block is split to form two bearing halves for the sleeve which are normally held together by elastic tie rods to clamp the sleeve and prevent its rotation.
  • a hydraulic cylinder can be operated to separate the bearing halves, thereby allowing adjustment of the working gap between hammer and anvil by actuating the servomotor.
  • My present invention relates to a power press, more specifically to a high-speed forging press having a reciprocating hammer driven by an eccentric.
  • a more specific object is the installation of such gapadjusting means on the hammer side of the press in a manner insulating the servomotor from the dynamic impacts of the hammer drive.
  • a press wherein the two jointly reciprocable members, i.e., the hammer member and the force-transmitting block, are interconnected by an eccentric coupling which includes a transverse element, such as a cam sleeve, rotatably lodged in one of these members, preferably the pressure block.
  • This element is operatively joined to an electric or hydraulic servomotor, mounted on the press frame, through a flexible link such as a telescoping and universally jointed shaft.
  • I provide selectively operable blocking means to prevent the cam sleeve from rotating except when an adjustment of the working gap is to be carried out.
  • the member supporting this sleeve is split into two bearing halves normally held together by one or more elastically extensible tie rods.
  • the two bearing halves may be forcibly separated, by a hydraulic or pneumatic jack, to unclamp the sleeve for adjustment purposes.
  • the coupling between the two members includes a worm driven by the motor and meshing with a worm wheel on the cam sleeve.
  • the sleeve surrounds a pin that spans two arms of the yoke-shaped hammer member bracketing the pressure block.
  • FIG. 1 is a sectional elevational view of a press according to my invention
  • FIG. 2 is a section taken on the line II II of FIG. 1;
  • FIG. 3 is an enlarged view of a portion of the press taken in the direction of arrow III of FIG. 2;
  • FIG. 4 is an enlarged view of the region of FIG. 2 indicated by arrow IV.
  • a forging press embodying my invention has a frame 1 in which is journaled a shaft 2 carrying an eccentric disk 3.
  • the shaft 2 also mounts a flywheel l8 entrained bymeans of keys 19, a drive motor 20 being couplable to this shaft through a clutch 21.
  • the eccentric 3 is moved so that its axis A describes a cylinder of a radius r around the axis A.
  • the base of frame 1 forms an anvil 6.
  • the working gap G of the device is the distance between the lower face of hammer 5 and the top of the anvil 6; this gap can be adjusted by displacing the hammer 5 relatively to the force-transmitting member 4.
  • a cam sleeve 7 surrounds the pin 14 in its central region where this pin pases through the block 4.
  • the sleeve 7 has a thickness varying from a maximum T to a minimum t, as seen best in FIG. 4.
  • the hammer 5 may be moved with reference to block 4 through a distance 2(Tt) equal to the distance between the axis A" of the pin 14 and the axis A' of the outer peripheral surface of the sleeve 7.
  • the hammer also carries a hydraulic jack 33 which may be operated during each upstroke to displace, through a lever 34, a knockout pin 35 for dislodging adhering workpieces.
  • the adjustment of the relative positions of the hammer 5 and the pressure block 4 is carried out by rotating the sleeve 7 on the pin 14.
  • the sleeve 7 is formed around its center as a worm wheel 8 engaged by a worm 9 which is driven .by an electric servomotor 11 carried on the press frame I.
  • the worm 9 has a shaft 23 rotatably journaled in a horizontal bore 24 of block 4 by bearings 25.
  • the outer end of the shaft 23 is connected via a ball-type universal joint 12 to a telescoping shaft 10, consisting of two nested, splined and relatively slidable sections, whose other end is linked via another ball-type universal joint 13 to the output shaft 26 of the motor 11 paralleling the worm shaft 23.
  • Energization of motor 11 rotates the worm 9 to turn the sleeve 7 on the shaft 14, thereby changing the relative position of the hammer 5 and the forcetransmitting member 4.
  • the block 4 is horizontally split at a recess 15 into an upper bearing half 4', rigid with the body of the block, and a complementary lower bearing half 4" integrally but flexibly joined to it in the region diametrically opposite the recess 15 which is spanned by two tie rods 16 clamping the cam sleeve 7, cradled in these bearing halves, tightly in position.
  • the tie rods are stretchable, against their inherent elasticity and/or the force of strong loading springs not shown, by a hydraulic jack 17 inserted in the recess 15. As shown in FIG. 2, jack 17 is connected via a conduit 27 to a source 28 of highpressure fluid, the conduit being normally blocked by a manually operable valve 29.
  • a manual switch 36 in series with circuit breaker 31 serves to energize the motor but is ineffectual as long as jack 17 is not pressurized to spread the bearing halves 4', 4" apart so as to facilitate rotation of sleeve 7; thus, actuator 30 serves as a lockout means preventing untimely operation of motor 11.
  • the lower bearing half 4" could also be completely separated from the block 4, with duplication of the tie rods 16 on opposite sides of sleeve 7.
  • a forging press comprising:
  • a force-transmitting member mounted on said frame for reciprocation toward and away from said anvil; drive means for reciprocating said force transmitting member;
  • transverse element is a cam sleeve
  • said coupling further comprising a pin connected to the other of said members and passing eccentrically through said sleeve.
  • said blocking means includes a split bearing for said sleeve on said force-transmitting member and clamping means for holding said bearing together.
  • split bearing has a first half integral with said force-transmitting member and a separable second half embracing said sleeve, said clamping means including elastically extensible tie means engaging said halves.
  • a press as defined in claim9 further comprising lockout means for preventing operation of said motor in an inoperative state of said spreader means.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Forging (AREA)
  • Presses And Accessory Devices Thereof (AREA)
US00184378A 1970-09-30 1971-09-28 Forging press with adjustable working gap Expired - Lifetime US3726123A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2048109A DE2048109C3 (de) 1970-09-30 1970-09-30 Exzenterpresse

Publications (1)

Publication Number Publication Date
US3726123A true US3726123A (en) 1973-04-10

Family

ID=5783829

Family Applications (1)

Application Number Title Priority Date Filing Date
US00184378A Expired - Lifetime US3726123A (en) 1970-09-30 1971-09-28 Forging press with adjustable working gap

Country Status (4)

Country Link
US (1) US3726123A (show.php)
JP (1) JPS5037905B1 (show.php)
CS (1) CS152973B2 (show.php)
DE (1) DE2048109C3 (show.php)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3834216A (en) * 1972-06-28 1974-09-10 Eumuco Ag Fuer Maschinenbau Forging press
US3908436A (en) * 1974-05-01 1975-09-30 Hasenclever Gmbh Maschf Power press with overload protection
US4096728A (en) * 1977-07-27 1978-06-27 Gulf & Western Manufacturing Company Adjusting device for slide driven lift out actuators
FR2611149A1 (fr) * 1987-02-19 1988-08-26 Eumuco Ag Fuer Maschinenbau Machine de formage, notamment une presse a forger avec reglage de la course
US5666838A (en) * 1995-06-05 1997-09-16 Efco, Incorporated Forging press for use with automated multi-station transport system
US5771740A (en) * 1997-07-10 1998-06-30 Chang; Shi-Chi Forge machine
ES2155326A1 (es) * 1998-04-03 2001-05-01 Castillo Juan Cuevas Prensa para el forjado de piezas de laton.
EP0947259A3 (en) * 1998-03-31 2001-06-13 Sumitomo Heavy Industries, Ltd. Crank press
US6666316B2 (en) * 2002-03-28 2003-12-23 The Minster Machine Company Hydraulic actuated radial friction clutch/brake
WO2014060730A1 (en) * 2012-10-17 2014-04-24 Tg Can Ip Limited Press for a cupping system
WO2014060732A1 (en) * 2012-10-17 2014-04-24 Tg Can Ip Limited Press for a cupping system
CN103878282A (zh) * 2014-03-19 2014-06-25 西安交通大学 一种摆线针轮减速方式的双电机驱动肘杆伺服压力机
CN104907476A (zh) * 2015-05-25 2015-09-16 山东金辰机械股份有限公司 楔式热模锻压力机偏心套调整锁紧机构
CN108188323A (zh) * 2017-12-01 2018-06-22 安徽新荣钢构有限公司 一种矩形零件端面锻造用锻造装置
CN112743022A (zh) * 2020-12-28 2021-05-04 安徽企盈汽配股份有限公司 汽车轮毂轴承锻造成型装置
CN113290191A (zh) * 2021-05-24 2021-08-24 荣成华东锻压机床股份有限公司 热模锻压力机调模用压力销气浮系统及方法
CN109049824B (zh) * 2018-09-15 2024-01-26 贝尔数据科技（大连）有限公司 一种可精确调节工作台相对高度的压力机综合实验台

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3118955C2 (de) * 1981-05-13 1986-03-13 Voronežskoe proizvodstvennoe ob"edinenie po vypusku kuznečno-pressovogo oborudovanija imeni M. I. Kalinina, Voronež Presse mit Kurbelstellmechanismus und Einstellung der Höhe des Werkzeugzwischenraumes
DE102013105596B4 (de) 2013-05-31 2015-10-29 Schuler Pressen Gmbh Presse und Verfahren zum Betreiben der Presse

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US508974A (en) * 1893-11-21 Ciotti
US3033055A (en) * 1957-07-26 1962-05-08 Trumpf & Co Adjustable eccentric
US3162232A (en) * 1963-01-14 1964-12-22 Niagara Machine & Tool Works Multiple depth control for power press brakes
US3334581A (en) * 1965-06-17 1967-08-08 Minster Machine Co Motorized slide adjustment
US3521475A (en) * 1967-03-25 1970-07-21 Hasenclever Ag Maschf Forging press

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US508974A (en) * 1893-11-21 Ciotti
US3033055A (en) * 1957-07-26 1962-05-08 Trumpf & Co Adjustable eccentric
US3162232A (en) * 1963-01-14 1964-12-22 Niagara Machine & Tool Works Multiple depth control for power press brakes
US3334581A (en) * 1965-06-17 1967-08-08 Minster Machine Co Motorized slide adjustment
US3521475A (en) * 1967-03-25 1970-07-21 Hasenclever Ag Maschf Forging press

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3834216A (en) * 1972-06-28 1974-09-10 Eumuco Ag Fuer Maschinenbau Forging press
US3908436A (en) * 1974-05-01 1975-09-30 Hasenclever Gmbh Maschf Power press with overload protection
US4096728A (en) * 1977-07-27 1978-06-27 Gulf & Western Manufacturing Company Adjusting device for slide driven lift out actuators
FR2611149A1 (fr) * 1987-02-19 1988-08-26 Eumuco Ag Fuer Maschinenbau Machine de formage, notamment une presse a forger avec reglage de la course
US4819474A (en) * 1987-02-19 1989-04-11 Eumuco Aktiengesellschaft Fur Maschinenbau Metal forming machine having a stroke position adjusting assembly
US5666838A (en) * 1995-06-05 1997-09-16 Efco, Incorporated Forging press for use with automated multi-station transport system
US5771740A (en) * 1997-07-10 1998-06-30 Chang; Shi-Chi Forge machine
EP0947259A3 (en) * 1998-03-31 2001-06-13 Sumitomo Heavy Industries, Ltd. Crank press
ES2155326A1 (es) * 1998-04-03 2001-05-01 Castillo Juan Cuevas Prensa para el forjado de piezas de laton.
US6666316B2 (en) * 2002-03-28 2003-12-23 The Minster Machine Company Hydraulic actuated radial friction clutch/brake
WO2014060730A1 (en) * 2012-10-17 2014-04-24 Tg Can Ip Limited Press for a cupping system
WO2014060732A1 (en) * 2012-10-17 2014-04-24 Tg Can Ip Limited Press for a cupping system
CN103878282A (zh) * 2014-03-19 2014-06-25 西安交通大学 一种摆线针轮减速方式的双电机驱动肘杆伺服压力机
CN104907476A (zh) * 2015-05-25 2015-09-16 山东金辰机械股份有限公司 楔式热模锻压力机偏心套调整锁紧机构
CN108188323A (zh) * 2017-12-01 2018-06-22 安徽新荣钢构有限公司 一种矩形零件端面锻造用锻造装置
CN109049824B (zh) * 2018-09-15 2024-01-26 贝尔数据科技（大连）有限公司 一种可精确调节工作台相对高度的压力机综合实验台
CN112743022A (zh) * 2020-12-28 2021-05-04 安徽企盈汽配股份有限公司 汽车轮毂轴承锻造成型装置
CN112743022B (zh) * 2020-12-28 2023-11-03 安徽企盈汽配股份有限公司 汽车轮毂轴承锻造成型装置
CN113290191A (zh) * 2021-05-24 2021-08-24 荣成华东锻压机床股份有限公司 热模锻压力机调模用压力销气浮系统及方法
CN113290191B (zh) * 2021-05-24 2021-11-30 荣成华东锻压机床股份有限公司 热模锻压力机调模用压力销气浮系统及方法

Also Published As

Publication number Publication date
CS152973B2 (show.php) 1974-02-22
JPS5037905B1 (show.php) 1975-12-05
DE2048109B2 (de) 1974-05-02
DE2048109A1 (de) 1972-04-06
DE2048109C3 (de) 1974-12-05

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