WO2010059147A2 - Entraînement de vérin à double force pour une presse à vis - Google Patents

Entraînement de vérin à double force pour une presse à vis Download PDF

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Publication number
WO2010059147A2
WO2010059147A2 PCT/US2008/082636 US2008082636W WO2010059147A2 WO 2010059147 A2 WO2010059147 A2 WO 2010059147A2 US 2008082636 W US2008082636 W US 2008082636W WO 2010059147 A2 WO2010059147 A2 WO 2010059147A2
Authority
WO
WIPO (PCT)
Prior art keywords
ram
drive
motor means
clutch
speed
Prior art date
Application number
PCT/US2008/082636
Other languages
English (en)
Other versions
WO2010059147A3 (fr
Inventor
Roger B. Patton
Original Assignee
Pem Management, Inc.
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 Pem Management, Inc. filed Critical Pem Management, Inc.
Priority to MX2010002778A priority Critical patent/MX2010002778A/es
Priority to CA2695160A priority patent/CA2695160C/fr
Priority to JP2010539553A priority patent/JP5222956B2/ja
Priority to CN200880116458.6A priority patent/CN101970271B/zh
Priority to EP08876907A priority patent/EP2432671A4/fr
Publication of WO2010059147A2 publication Critical patent/WO2010059147A2/fr
Publication of WO2010059147A3 publication Critical patent/WO2010059147A3/fr

Links

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
    • B30B1/18—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 screw means
    • 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
    • B30B1/18—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 screw means
    • B30B1/186—Control arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/12—Clutches specially adapted for presses

Definitions

  • This invention relates to a fastener press which utilizes electric servo motors for precise ram position control. More specifically, the present invention relates to a servo motor driven ram having separate high- force and low- force drive motors using a clutch-type drive mechanism and regulated by a controller. BACKGROUND OF THE INVENTION
  • presses utilize a two-motor servo system to control velocity, position, and force of the press ram to install fasteners to the proper force or distance depending on the application.
  • a high torque drive is engaged to drive the ram to the desired force or position. After insertion the high speed motor returns the ram to the home position.
  • a fastener press for example a Pemserter Series 3000 manufactured and sold by Penn Engineering and Manufacturing Corp., as shown in Figure 1, utilizes a bidirectional over-running clutch through which high force ram drive power passes.
  • the clutch is controlled by relative motion of two separate motor drives as will be described in detail below.
  • Bidirectional over-running clutches are commercially available components that consist of a regular, polygon-shaped inner hub surrounded by rollers encased in an outer hub as shown in Figure 3.
  • the inner and outer hubs are connected to separate shafts.
  • the inner hub shaft can drive the outer hub shaft in either a clockwise or counterclockwise direction if the inner hub shaft speed of rotation is greater than the outer hub.
  • Figure 1 is a front left isometric view of a ram press utilizing the invention.
  • FIG. 2 is a diagram showing the major components of the invention.
  • Figure 3 is a top front left isometric view of the bidirectional clutch of the invention.
  • Figure 4 is a elevation cross-sectional view of the bidirectional clutch of the invention.
  • Figure 5 is a graph showing the pressing profile of one embodiment of the invention depicting the speed of the ram over time. DESCRIPTION OF THE PREFERRED EMBODIMENT
  • a ram press 4 employing the invention which includes a c-shaped frame 1 that supports an anvil 2 that is reciprocally impacted by ram 3.
  • major components of the invention are disclosed which comprise a frame that supports basic mechanical components of the invention that comprise a high-speed mechanical actuator and a high-torque motor.
  • a screw drive which may be operated in either direction by either the high-speed or low-speed motor means.
  • a bidirectional self-disengaging clutch is connected to the high torque motor means which includes a motor/gear reducer combination.
  • a programmable logic controller regulates operation of the two motors and thus movement of the ram by way of the screw drive.
  • the bidirectional clutch is connected to the main shaft of the screw drive by way of a timing belt.
  • the logic controller regulates the movement of the ram according to a pressing profile that will be described in more particularity with regard to Figure 5.
  • the press ram is moved by a screw actuator whose shaft is coupled directly to the high speed motor means in this embodiment being the commercially available device generally referred to as an electromechanical actuator.
  • the device incorporates a screw drive mechanism so that its internal shaft is reciprocated in a range of motion between extended and retracted positions. That drive shaft is also coupled to the output of the above-described clutch by way of a gear belt drive.
  • the input shaft of the clutch is coupled to the high torque motor.
  • the clutch is operated by the relative speeds of separate brushless DC or AC servo motors that are regulated by a controller.
  • Each motor has a feedback device such as an encoder or resolver and an additional encoder is attached to the main actuator shaft so that the relative position of the ram is known regardless of which motor is operating the ram.
  • One motor provides a high-speed drive while the second motor is a high-torque drive which is an integrated servo gear motor with a 10 to 1 ratio.
  • the high- torque motor means has its own encoder for communication and control and its output shaft is coupled to the high-speed motor's drive shaft through the above-described high-torque clutch, transmitted there by a belt.
  • the high-torque motor can rotate the screw actuator when the clutch is engaged. Engagement of the clutch is achieved by regulating the speeds of the motors to switch ram operation from one motor to the other when the other is running faster.
  • FIG. 4 is a cross- sectional view of the bidirectional clutch describing greater details of its structure.
  • the outer hub shaft carries the output of the clutch and is connected to the high speed motor shaft by way of a belt drive as depicted in Figure 2.
  • the inner hub shaft is connected to a high torque output of the gear motor. Operation
  • the above movements are regulated by a controller which determines the speeds of the high speed and high torque motors which, in combination with the clutch of Figure 2 interposed between the high torque motor and the screw actuator, follows a prescribed pressing profile that determines the motion of the ram.
  • Figure 5 represents a typical pressing profile.
  • the X axis represents time in seconds and the Y axis represents speed (inches per second)
  • the dotted lines 9 indicate the typical motion of the high torque motor and the solid lines 8 represent the motion of the high speed motor as it relates to ram movement.
  • the first move is to start the high torque motor prior to starting the high speed motor. This move insures that the clutch will disengage when the high speed motor overtakes the high torque motor.
  • the high speed motor When the solid line crosses the dotted line (reading from left to right) the high speed motor overtakes the high torque motor and is then in control of the ram. The high torque motor then decelerates and stops during the high speed move. At the mid point of the graph the high speed move (solid line) is approaching the pressing position. At this time the high torque motor starts accelerating while the high speed motor is decelerating. When the dotted line overtakes the solid line the high torque motor is in control and the pressing sequence begins. Once pressing is complete the high torque motor decelerates. On the return stoke after pressing, the high torque motor is started in reverse and begins to accelerate. The high speed motor then starts and begins to accelerate at a faster rate. When the solid line crosses the dotted line the high speed motor overtakes the high torque motor and is in control. The high speed motor finishes the move and decelerates to a stop. The cycle is complete and ready for the next cycle.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Control Of Presses (AREA)
  • Presses And Accessory Devices Thereof (AREA)

Abstract

Le mouvement précis du vérin d'une presse de fixation est commandé par des moteurs à couples élevés et à faibles couples pour une pression à grande vitesse/faible force et force élevée du vérin par le vérin, respectivement. L'entraînement du moteur à couple élevé passe par un embrayage à roue libre bidirectionnel. L'embrayage est commandé par le mouvement relatif des vitesses d'entraînement des deux moteurs séparés, qui sont régulées par un contrôleur. Le mouvement d'embrayage est par conséquent commandé uniquement par la vitesse relative de son entraînement par rapport aux composants entraînés. Ceci permet une transition extrêmement douce et réactive entre un fonctionnement à grande vitesse/faible force et à basse vitesse/grande force du vérin, si bien que le cycle de pressage peut être aussi rapide et efficace que possible.
PCT/US2008/082636 2007-09-14 2008-11-06 Entraînement de vérin à double force pour une presse à vis WO2010059147A2 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
MX2010002778A MX2010002778A (es) 2007-09-14 2008-11-06 Accionamiento del eje principal de la prensa con fuerza dual para una prensa de tornillo.
CA2695160A CA2695160C (fr) 2008-11-06 2008-11-06 Entrainement de belier double force pour presse a vis
JP2010539553A JP5222956B2 (ja) 2007-09-14 2008-11-06 スクリュープレス用二重加力ラム駆動装置
CN200880116458.6A CN101970271B (zh) 2007-09-14 2008-11-06 用于螺旋压力机的双力压头驱动装置
EP08876907A EP2432671A4 (fr) 2007-09-14 2008-11-06 Entraînement de vérin à double force pour une presse à vis

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US97244707P 2007-09-14 2007-09-14
US60/972,447 2007-09-14

Publications (2)

Publication Number Publication Date
WO2010059147A2 true WO2010059147A2 (fr) 2010-05-27
WO2010059147A3 WO2010059147A3 (fr) 2010-08-19

Family

ID=42198711

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/082636 WO2010059147A2 (fr) 2007-09-14 2008-11-06 Entraînement de vérin à double force pour une presse à vis

Country Status (6)

Country Link
EP (1) EP2432671A4 (fr)
JP (1) JP5222956B2 (fr)
CN (1) CN101970271B (fr)
MX (1) MX2010002778A (fr)
MY (1) MY153347A (fr)
WO (1) WO2010059147A2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5769859B1 (ja) * 2014-11-03 2015-08-26 日本エアロフォージ株式会社 液圧鍛造プレス装置及びその制御方法
US11752720B2 (en) 2021-09-08 2023-09-12 PDInnovative LLC Press machine with modular linear actuator system
US11919267B2 (en) 2021-09-21 2024-03-05 PDInnovative LLC Linear-actuated press machine having telescopic drive configuration for multi-speed drive functionality
US11819906B2 (en) 2021-09-21 2023-11-21 PDInnovative LLC Linear-actuated press machine having multiple motors and clutch system for multi-speed drive functionality

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2831361A (en) * 1955-08-03 1958-04-22 Giddings & Lewis Machine tool feed transmission and controls therefor
RU2011537C1 (ru) * 1991-07-09 1994-04-30 Рыбинский Авиационный Технологический Институт Винтовой пресс
US5827143A (en) * 1996-12-11 1998-10-27 Ntn Corporation Two belt over-running clutch pulley
JPH11221700A (ja) * 1998-02-04 1999-08-17 Aida Eng Ltd サーボプレス機械
US6520077B1 (en) * 1999-03-31 2003-02-18 Aida Engineering Co., Ltd. Screw press
JP3983924B2 (ja) * 1999-04-28 2007-09-26 榎本機工株式会社 スクリュープレス装置
US6792788B2 (en) * 2001-02-15 2004-09-21 Institute Of Technology Precision Electrical Discharge Work's Pressurizer
JP3946515B2 (ja) * 2001-12-27 2007-07-18 株式会社アマダエンジニアリングセンター 折り曲げ加工装置
WO2004037528A1 (fr) * 2002-10-24 2004-05-06 Kanemitsu Corporation Presse
JP3953414B2 (ja) * 2002-12-11 2007-08-08 株式会社東洋工機 往復駆動機構およびその機構を用いたプレス機械
DE102005038583B4 (de) * 2005-08-16 2007-12-27 Schuler Pressen Gmbh & Co. Kg Pressen-Antriebsmodul und Verfahren zur Bereitstellung einer Pressenbaureihe
JP2008119737A (ja) * 2006-11-15 2008-05-29 Japan Automat Mach Co Ltd サーボプレスおよびサーボプレスの制御方法
JP5111884B2 (ja) * 2007-02-15 2013-01-09 蛇の目ミシン工業株式会社 電動プレス

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of EP2432671A4 *

Also Published As

Publication number Publication date
EP2432671A2 (fr) 2012-03-28
JP5222956B2 (ja) 2013-06-26
CN101970271A (zh) 2011-02-09
MY153347A (en) 2015-01-29
JP2012507404A (ja) 2012-03-29
MX2010002778A (es) 2013-03-01
CN101970271B (zh) 2014-08-20
EP2432671A4 (fr) 2012-05-30
WO2010059147A3 (fr) 2010-08-19

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