WO2008092314A1 - Système d'équilibrage d'un moment perturbateur - Google Patents

Système d'équilibrage d'un moment perturbateur Download PDF

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Publication number
WO2008092314A1
WO2008092314A1 PCT/CN2007/001665 CN2007001665W WO2008092314A1 WO 2008092314 A1 WO2008092314 A1 WO 2008092314A1 CN 2007001665 W CN2007001665 W CN 2007001665W WO 2008092314 A1 WO2008092314 A1 WO 2008092314A1
Authority
WO
WIPO (PCT)
Prior art keywords
moment
connecting rod
disturbing moment
hydraulic cylinder
hydraulic
Prior art date
Application number
PCT/CN2007/001665
Other languages
English (en)
Chinese (zh)
Inventor
Dehai Yu
Xiaochun Wang
Wenfeng Zhang
Chungang Cai
Junmin Zheng
Hongqi Chen
Qinghong Liu
Xi Pu
Original Assignee
Dalian Guangyang Science & Technology Engineering Co., Ltd
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
Priority claimed from CNB2007100101498A external-priority patent/CN100497961C/zh
Priority claimed from CNU2007200102744U external-priority patent/CN200999770Y/zh
Priority claimed from CNU2007200102759U external-priority patent/CN200999771Y/zh
Priority claimed from CNB2007100101515A external-priority patent/CN100497962C/zh
Application filed by Dalian Guangyang Science & Technology Engineering Co., Ltd filed Critical Dalian Guangyang Science & Technology Engineering Co., Ltd
Publication of WO2008092314A1 publication Critical patent/WO2008092314A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor

Definitions

  • the present invention relates to a mechanical device and a control system therefor, and more particularly to a mechanical device for balancing a subversive moment in a reciprocating oscillating mechanism and a control system therefor.
  • the swing mechanism such as a two-axis turntable, also known as a two-coordinate rotary table, which generates a subversive moment during the reciprocating motion of the table.
  • a two-axis turntable also known as a two-coordinate rotary table
  • the subversive moment is generated by the total gravity of the reciprocating oscillating mechanism of the biaxial turret and the workpiece clamped on the countertop, due to the center of gravity of the component that oscillates around the axis It does not coincide with the axis, so the center of gravity generates a gravitational moment with respect to the axis, which we call the subversive moment.
  • this subversive moment changes periodically. For example, the varying moment formed during the rotation of the two-axis turret. Referring to Fig. 1, it can be reflected that the subversive moment varies with the swing angle.
  • the present invention provides a mechanism for balancing the overturning moment, which aims to balance the subversive moment generated by the swinging mechanism, enhance the stability and reliability of the system, and change the tradition to increase the output torque of the motor. To solve the problem of subverting the torque problem, so as to achieve the purpose of reducing costs.
  • a subversion torque balancing system characterized by including mechanical devices and control systems; correction page (Article 91)
  • the mechanical device comprises a connecting rod, a hydraulic system and a roller, wherein the connecting rod and the piston rod of the hydraulic system are hinged at the end, and the other end of the connecting rod is fixedly connected with the swinging shaft generating the subversive moment, so it is necessary to ensure the same
  • the center of gravity of the oscillating member that generates the subversive moment falls on the line connecting the hinge center and the corresponding oscillating axis;
  • the bottom of the hydraulic cylinder of the hydraulic system is mounted with a roller to ensure the balance mechanism when the turret is tilted Follow-up; at the bottom of the hydraulic cylinder, there are inlet holes and outlet holes;
  • the control system is a constant voltage control unit.
  • the pressure in the hydraulic cylinder is constant, it is equivalent to a constant pressure F which is always vertically upward in one direction of the connecting rod.
  • F GL/L'
  • FL'sin0 GLsine
  • the constant voltage control unit outputs the voltage through the CNC analog voltage, and the difference voltage is processed by the amplifier, and the current control proportional valve realizes the hydraulic control, and a pressure sensor is placed between the proportional valve and the hydraulic cylinder, thereby converting the actual pressure into The electrical signal is fed back to the PID regulator and compared with the CNC output analog voltage value. The difference between the two signals acts on the PID, and changes and outputs the command signal to the proportional valve.
  • the rated torque of the selected drive motor is small, so the rated power of the motor will be smaller, which can save the cost of using the motor, reduce the power consumption, prolong the service life of the motor, and reduce the time and cost of maintenance. ;
  • Figure 1 is a schematic diagram of the generation and change of the subversive moment
  • Figure 2 is a schematic view of the mechanical device of the present invention.
  • FIG. 3 to 7 are diagrams showing the state of use of the present invention at different swing angles;
  • Figure 8 is a control diagram of the constant pressure unit of the present invention.
  • the two-axis rotary table also known as the two-coordinate rotary table, is widely used in the machine tool industry, and the control of the two-axis rotary table must require numerical control to control the operation and positioning in order to achieve precision workpiece machining.
  • a subversive moment is generated.
  • Me GLsine.
  • the mechanical device of the present invention is shown in Fig. 2.
  • the mechanical device comprises a connecting rod, a hydraulic system and a roller, and is mounted on the two-axis rotary table, that is, the upper end of the connecting rod 1 is fixed on the double-axis rotary table which generates the subversive torque.
  • On the rotating shaft it can be fixed at one end of the rotating shaft, or can be sleeved on the shaft in a circular manner; at the same time, it is fixed by bolts or pins, and care should be taken to ensure the coaxiality.
  • the lower end of the connecting rod 1 is hinged on the piston rod 8 by a pin shaft, and the center of gravity of the two-axis turntable is generated to fall on the connecting line between the hinge center and the corresponding turntable axis, and is farther away from the axis than the center of gravity. .
  • This is achieved by means of a positioning connection at the upper end of the connecting rod 1, such as the three-point positioning method of the preferred mode in Fig. 2.
  • the piston rod 2 drives the piston at the lower end, and the roller 6 is mounted on the bottom of the hydraulic cylinder 3 and placed on a plane parallel to the table.
  • the oscillating member that generates the subversive moment oscillates back and forth around the center of rotation of the oscillating shaft
  • the hydraulic cylinder reciprocates with the roller.
  • the piston reciprocates in the vertical direction.
  • 3 to 7 are diagrams showing the state of use of the present invention at different swing angles.
  • the pressure, feedback back to the PID is compared with the CNC output analog quantity.
  • the difference between the two signals acts on the PID, and the command signal sent to the proportional valve is changed, so the proportional valve automatically controls the adjustment amount to eliminate the difference, thereby controlling the entire system.
  • the pressure ensures that the pressure in the hydraulic cylinder is constant, thus balancing the subversive moment of the two-axis turret.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)

Abstract

L'invention concerne un système utilisé pour équilibrer un moment perturbateur dans un dispositif à mouvement alternatif par balancement, comprenant un dispositif mécanique et un système de commande. Le dispositif mécanique comprend une tige de connexion, un système hydraulique et un rouleau. La tige de connexion du dispositif mécanique et une tige de piston du système hydraulique sont reliées par leurs extrémités. L'autre extrémité de la tige de connexion est solidement connectée à un essieu de balancement générant le moment perturbateur. Le centre de liaison se trouve situé sur une ligne de connexion d'un barycentre de l'élément de balancement générant le moment perturbateur et un centre d'essieu de balancement correspondant. Le rouleau est monté au niveau de la partie inférieure d'un cylindre hydraulique du système hydraulique. Une entrée de liquide et une sortie de liquide sont situées au niveau de la partie inférieure du cylindre hydraulique. Le système de commande est constitué d'une unité de commande à pression constante pouvant adapter le moment perturbateur généré par la différence de poids des pièces. La présente invention concerne le dispositif de balancement générant le moment perturbateur, par exemple une table de rotation biaxiale, et propose un système d'équilibrage du moment perturbateur, améliorant ainsi la stabilité et la fiabilité du système, modifiant la pratique classique selon laquelle le moment perturbateur est équilibré par augmentation du couple de sortie d'un moteur électrique, et présentant des avantages tels que la réduction des coûts d'utilisation du moteur électrique, etc..
PCT/CN2007/001665 2007-01-24 2007-05-22 Système d'équilibrage d'un moment perturbateur WO2008092314A1 (fr)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
CN200710010149.8 2007-01-24
CN200720010274.4 2007-01-24
CN200710010151.5 2007-01-24
CNB2007100101498A CN100497961C (zh) 2007-01-24 2007-01-24 一种平衡颠覆力矩的系统
CNU2007200102744U CN200999770Y (zh) 2007-01-24 2007-01-24 一种平衡颠覆力矩的系统
CNU2007200102759U CN200999771Y (zh) 2007-01-24 2007-01-24 一种平衡颠覆力矩的机构
CN200720010275.9 2007-01-24
CNB2007100101515A CN100497962C (zh) 2007-01-24 2007-01-24 一种平衡颠覆力矩的机构

Publications (1)

Publication Number Publication Date
WO2008092314A1 true WO2008092314A1 (fr) 2008-08-07

Family

ID=39673637

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2007/001665 WO2008092314A1 (fr) 2007-01-24 2007-05-22 Système d'équilibrage d'un moment perturbateur

Country Status (1)

Country Link
WO (1) WO2008092314A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB269897A (en) * 1926-04-24 1927-09-15 Hugo Heinrich Rotary engine or the like
SU726367A1 (ru) * 1977-11-11 1980-04-05 Предприятие П/Я А-1697 Установка дл испытаний гидравлических моторов
JPS6080508A (ja) * 1983-10-07 1985-05-08 Mitsubishi Heavy Ind Ltd 工作機械のバランス装置
CN1083115A (zh) * 1993-05-28 1994-03-02 冶金工业部武汉钢铁设计研究院 平衡转炉倾动转矩的滑轮弹簧组合
JP2006161995A (ja) * 2004-12-09 2006-06-22 Image Seed:Kk 物品の傾動安定支持装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB269897A (en) * 1926-04-24 1927-09-15 Hugo Heinrich Rotary engine or the like
SU726367A1 (ru) * 1977-11-11 1980-04-05 Предприятие П/Я А-1697 Установка дл испытаний гидравлических моторов
JPS6080508A (ja) * 1983-10-07 1985-05-08 Mitsubishi Heavy Ind Ltd 工作機械のバランス装置
CN1083115A (zh) * 1993-05-28 1994-03-02 冶金工业部武汉钢铁设计研究院 平衡转炉倾动转矩的滑轮弹簧组合
JP2006161995A (ja) * 2004-12-09 2006-06-22 Image Seed:Kk 物品の傾動安定支持装置

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