• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A grinding wheel support, for instance of a large gear grinding machine, moves up and down during the grinding operation in a non-horizontal guide and is driven by a linear motor which does not possess any self-locking action, for instance a piston-and-cylinder arrangement which is powered by a pressurized oil pump. A brake retains the grinding wheel support in its rest position. During the transition from the rest position into the position-regulation mode the grinding wheel support must not carry out any uncontrolled or undesired movements. Therefore, the grinding wheel support, starting from the time that it is placed into operation out of its rest position, is allowed a certain upward movement play, in order to render possible a surge-free placement into operation of the actual position regulation operation of the position regulator. For this purpose a position measuring system measures a starting position-actual value in the rest position, to which there is added a part of the movement play by means of a set value former, in order to thus define a starting position-set or reference value. The position regulator then controls the pump until the grinding disk support has reached the starting position-set value under the action of the linear motor. At this point in time the brake is released and there can begin the actual position regulation operation.
    公开号:SU1303018A3
    申请号:SU823496755
    申请日:1982-10-01
    公开日:1987-04-07
    发明作者:Блан Ги-Франсуа；Лерер Фритц
    申请人:Мааг-Цанрэдер Унд Машинен Аг (Фирма)；
    IPC主号:
    专利说明:

    new position. The regulator 9 regulates the pump until the holder 1 under the action of the linear motor 2 reaches a predetermined start-up value
    The invention relates to a machine tool industry and can be used in grinding machines.
    The purpose of the invention is to improve accuracy by eliminating undesirable ones. holder movements during the transition from rest to direct positional, regulation.
    1 shows a device with a fixed-piston linear motor; Fig. 2 shows the same with rotational hydraulic actuator.
    The device includes a holder 1 connected to the housing of the linear motor 2 with a fixed piston 3 and a movable body, supplying the installation 4 of the linear motor, a brake mechanism in the form of a rod 5 and brake pads 6, a holder position sensor 7, a driver of the given level, a regulator 9 positions, setpoint holder 10 position holder, threshold value detector 11, drive 12 brake pads. When performing a linear motor in the form of a hydraulic drive 13 of rotation, the device comprises a mother nut 14 which is rigidly connected to the holders 1 of the scaffold wheel.
    The device works as follows.
    Next to the grinding wheel holder 1, a shtanga 5 is installed, which is covered by two brake pads 6 of the remotely controlled actuator 12. The pads 6 are driven through a system of brake levers. At the same time, the bar, which with its lower end rests on the stationary base, has, at the top, a displacement gap S, whose dimensions are in the order of millimeters. When the linear motor 2 is turned off, the brake pads 6 are gripped while the drive 12 is turned on (in Figure 1, position I, shown in solid lines)
    position At this point, the actuator 12 is turned off and the actual position control mode begins. 2 Il.
     Holds the holder I in a certain initial position.
    A sensor 7 position holder is connected to a driver 8 of a predetermined level, the output of which is connected to the input of the regulator 9 of the position. This driver 8 generates a predetermined value, i.e. it is in the position of the grinding holder shown in FIG.
    0 circle by summing the actual value of the position of this holder, and a certain fraction (for example, 1 mm) of the gap S forms a predetermined value, when reaching which 5th regulator 9 must make the actual regulation of the position: on the basis of the actual value received from sensor 7, and of the setpoint received from the setter 10. The formation of the setpoint starting position using the imaging unit 8 is based on the idea that from the moment this setpoint is reached, the linear motor 2 should Enough pressure is required; in accordance with KOTopiiiM, it has already moved holder 1 together with rod 5 by a certain amount (.here is 1 mm), and thus
    30, the power is reached, it is necessary to perceive the load and overcome the forces of friction; therefore, the transition from the starting process to the actual position control occurs
    35 without uncontrolled and unwanted movements of the slider 1 with the grinding wheel.
    The other output of the position controller 9 is connected to the detector of the 11th threshold value, the output of which is connected to the setpoint adjuster 10 and to the drive 12. The 9th regulator from the moment the power supply 4 is turned on and, thus,
    The 45 starting points of the linear motor 2 constantly form the difference between the actual positioning, 3–13
    stepping into the controller from sensor 7, and the position setpoint coming from the imaging unit 8 of the setpoint, and feeding this difference to the threshold detector 11, when the difference between the setpoint and actual value falls below the threshold value in the detector 11, which is selected in accordance with with the quality of the position controller used, the detector 11 gives a command to the setpoint adjuster 10 of the specified value and at the same time a command to turn off the drive 12, as a result of which the actual position control mode begins And at the same time due to the deactivation of the actuator 12, the brake lever is moved to position II, shown in dotted lines in Figure 1, whereby the grinding wheel holder 1 can move freely.
    In the case of a linear motor holder in the form of a hydraulic actuator I3 of rotation, which is connected to the power supply unit 4, a screw 15 is installed at its lower end, rotating in one direction or another. The screw 15 interacts with the nut 14, which is rigidly connected to the holder I of the grinding wheel and, when the screw 15 is rotated, moves up or down. The device thus works as described above.
    权利要求:
    Claims (1)
    [1]
    Invention Formula
    A device for turning on the regulator of the position of the holder of the grinding wheel, made with the possibility of non-horizontal movement, contains
    The positioning sensor and the setting unit of the grinding wheel duster, a position controller associated with their outputs, the output of which is associated with the power supply installation of a non-self-locking linear motor, and a locking mechanism for setting the holder in a predetermined position, characterized in that due to the elimination of undesirable movements of the holder during the transition from the rest position to the direct positional control, the locking mechanism is designed as a brake mechanism containing the rod, limited in the body with a gap with the possibility of limited movement, and brake pads mounted on the grinding wheel holder with the ability to interact with the rod and connected with their drive, the device is equipped with a predetermined level connected to the holder position sensor configured to sum the position measured a position sensor and a starting path within the gap with the formation of a predetermined value, a starting position, and the output of the generator of a predetermined level is connected to position controller, the device is also equipped with a position detector, the input of which is connected to the position controller, and the output is connected to the holder position setter and the brake pad drive of the locking mechanism with the possibility of deactivating the brake pad drive when it reaches the starting position the actual position of the threshold value.
    12
    7 / /////////////
    Editor E. Papp
    Compiled by A. Semenova
    Tehred I.Popovnch Proofreader M.Demchik
    Order 1226/57 Edition 787 Subscription
    VNIIGSh of the USSR State Committee
    for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5
    Production and printing company, Uzhgorod, Projecto st., 4
    ipazJ
    类似技术:
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    同族专利:
    公开号 | 公开日
    JPS6219978B2|1987-05-01|
    DD203699A5|1983-11-02|
    CH656086A5|1986-06-13|
    DE3141945A1|1983-04-21|
    JPS5871026A|1983-04-27|
    US4535569A|1985-08-20|
    DE3141945C2|1983-10-27|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2022646A|1931-07-20|1935-12-03|Norton Co|Grinding wheel feeding mechanism|
    US2339024A|1943-05-26|1944-01-11|John M Hopwood|Pneumatic power cylinder and means for preventing over-travel of its piston|
    DE809289C|1949-06-18|1951-07-23|Goeckel Gmbh Maschf G|Device for backlash-free adjustment of the working stroke of workpiece or tool holders|
    DE1222755B|1963-08-31|1966-08-11|Karl Hueller G M B H|Clamping device|
    US3407543A|1965-09-29|1968-10-29|Landis Tool Co|Precision size control by a positive stop|
    DE1552761B2|1966-12-14|1973-02-15|VEB Werkzeugmaschinenkombinat Fritz Heckert Karl Marx Stadt, χ 9030 Karl Marx Stadt|DEVICE FOR CHANGING THE POSITION OF THE LIFTING MOVEMENT OF THE PLASTER CARRYING THE TOOL ON A MACHINE FOR GRINDING THE TOOTH FLANKS OF PRE-MACHINED HELICAL GEARS IN THE PARTIAL ROLLING PROCESS|
    US3436994A|1967-01-05|1969-04-08|Warner Swasey Co|Machine tool|
    US3553903A|1967-07-31|1971-01-12|Goodyear Tire & Rubber|Control system for a tire grinding machine|
    DE2327387C3|1973-05-29|1978-10-12|Pfaff Pietzsch Industrieroboter Gmbh, 7505 Ettlingen|Drive for handling equipment|
    JPS6014201B2|1975-12-01|1985-04-12|Kuroda Precision Ind Ltd|
    JPS53138598A|1977-05-10|1978-12-04|Inoue Japax Res Inc|Grinding device|
    JPS6258863B2|1980-02-29|1987-12-08|Toyoda Machine Works Ltd|US5145008A|1985-04-05|1992-09-08|Crown Cork & Seal Company, Inc.|Filling valve for counterpressure filling of cans|
    ES2221501B1|2001-08-07|2005-12-01|Estarta Rectificadora S.Coop|IMPROVEMENTS INTRODUCED IN A CENTER-FREE RECTIFIER.|
    JP4077844B2|2006-02-14|2008-04-23|ファナック株式会社|Machine tool with braking device|
    CN103846800A|2013-10-14|2014-06-11|洛阳欧特机械科技有限公司|Feeding control method of grinding machine|
    JP6219776B2|2014-04-24|2017-10-25|ファナック株式会社|Door opening and closing device provided with door opened and closed by electric motor|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH6346/81A|CH656086A5|1981-10-03|1981-10-03|ARRANGEMENT FOR STARTING THE BEARING REGULATOR OF A GRINDING DISC CARRIER.|
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