• 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:
    Metrological apparatus is provided with a turntable (4) which is movable horizontally and pivotally for centring and levelling a workpiece mounted on the turntable. The turntable is supported at three points (A,B,P), one of which is fixed and the other two of which are vertically movable by motorized jacks to provide the pivotal adjustment. Centring and levelling is achieved automatically by means of a computer which calculates the required horizontal and pivotal movements of the turntable from data obtained by sensing the workpiece surface with a transducer. <IMAGE>
    公开号:SU1672934A3
    申请号:SU874202142
    申请日:1987-03-03
    公开日:1991-08-23
    发明作者:Брюс Барнаби Энтони；Вальтер Миллз Майкл
    申请人:Рэнк Тейлор Хобсон Лимитед (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to a measurement technique, namely, devices for centering and leveling a part on a rotary table, mainly in metrological equipment.
    The aim of the invention is to improve the usability.
    FIG. 1 shows the device, a general view; in fig. 2 - rotary table; in fig. 3 - the same, part of the support structure, section; 4 is a simplified block diagram of a control system of the device; in fig. 5 is a flow chart of the table.
    The device for centering and leveling an object contains a support 1, which stands on frame 2 (its legs are visible in Fig. 1). Frame 2 has a rotary table 3 on which the part can be mounted. On the vertical rack 4 mounted vertically movable carriage 5, driven by the engine. Probe 6 is installed at the end of the hinge.
    a lever / which allows the stylus to change position and which, in turn, is fixed at the end horizontally (radially) of the movable lever 8 fixed on the carriage 5. The measuring operations on the part are made by the probe 6 passing the surface of the part while the turntable rotates 3 and / or when moving the probe 6 radially and / or when moving the probe vertically.
    The supporting structure for the turntable 3 comprises a base 9, resting on a disk 10, which is attached to a spindle 11 driven by a motor (FIGS. 2 and 3). The bearing device 12 (in Fig. 3 is shown by dashed lines) contains a spindle 11 for rotation around its vertical axis 13. The bearing device 12 is installed in frame 2. A set of ball bearings 14 in a disk case 15 is placed between the base 9 and the disk 10 , ensuring horizontal movement of the base 9 relative to the disk 10. This movement is carried out along the x and y axes by means of the motors 16 and 17, which are fixed on the base 9, and the corresponding drive translation-return rods 18 and 19 using gears 20 and 21, which may for example comprise a pair of screw Meth. The drive rods 18 and 19 are driven in respectively, on axes X and Y, when the respective engines are turned on.
    The lug 22 is attached to the upper end of the spindle 11. The spindle protruding through the central hole 23 in the base 9 has faces 24 and 2 which interlock respectively with the ends of the driving rods 18 and 19 and are located respectively in planes perpendicular to the axes X and Y The tension spring 26, at one end attached to the boss 22, and at the other end attached to the pin 27 fixed on the base 9, holds the edges 24 and 25 in engagement with the ends of the respective drive rods 18 and 19.
    Thus, with the help of engines 16 and 17 and the force of the spring 26, the base 9 can be moved to exact specified distances in any direction along the X and Y axes. In
    0
    five
    0
    five
    0
    five
    0
    five
    0
    five
    The control plates 28 and 29, through which the driving rods 18 and 19 respectively pass, have slots 30 in which the guide pins 31 are located on the gearboxes 20 and 21.
    The ball 32, mounted in the recess at the upper end of the pin 27, provides a universal articulated movement of the turntable 3 relative to the point P.
    At points A and B, the turntable 3 rests on the balls 33, respectively, by means of spacers 34 (FIG. 3), which are fixed on the underside of the turntable and rest on the balls 33. Balancing plates 35 and 36 mounted on corners 37 for performing hinge movement with respect to horizontal axes 38, perpendicular to the plane of the sheet (FIG. 3), there are depressions 39 and 40 in which balls 33 lie. Motors 41 and 42 drive the clips 43 (FIG. 3) by means of gears 44 and 45, setting a hinge movement of the balancing plates 35 and 36 and down relative to the axis 38. Thus, the inclusion of the engine
    41 leads to the tilt of the rotary table 3 about the axis connecting the points P and B, and turning on the engine
    42 tilts the turntable 3 about the axis connecting the points P and A. These axes pass through the centers 46 of the balls 32 and 33.
    Points A, B and P are located at the vertices of an equilateral triangle whose center C coincides with the center of the turntable 3, i.e. points A, B and P are located symmetrically with respect to point C. As a result, the maximum area of the turntable 3 is provided, within which the part can be located without causing the turntable to become unstable. However, as a result, the axes PA and PB, with respect to which the turntable is inclined, are at an angle of 60 ° to one another.
    Tension springs 4 push the rotary table 3 down, supporting the engagement of the struts 34 with the balls 33, and tension springs 48 push the balancing plates 35 and 36 down, supporting them in engagement with the clamps 43. The cylindrical wall, at 10,
    1 closes the encapsulated to the disk structure.
    The motors 16 and 17 are designed for centering, and the motors 41 and 42 intended for alignment are controlled by the computing system 49, to which the input signals from the converter 50, which reacts to the probe 6 (Fig. 4). The operator console 51 is designed to issue commands to the computing system 49. The computing system 49 also controls the motor 52, which drives the spindle 11 to rotate the turntable 3 (axis 0), the motor 53 to raise and lower the carriage 5 on the rack 4 (axis Z) and a motor 54, which drives the lever 8 in the radial direction (axis Y) to bring the probe 6 into contact and out of contact with the surface of the part. Transducers 55, 56 and 57 provide the computing system 49 with data representing the angular position of the turntable 3, the vertical position of the carriage 5 and the radial position of the lever 8. The display 58 and the memory device 59 are also connected to the computer system 49, the memory device 59 stores the received data and remembers the programs in accordance with which the computing system 49 operates. The computing system 49 may contain one or. more computers.
    权利要求:
    Claims (5)
    [1]
    1. A device for centering and leveling an object, comprising a support mounted rotatably around its axis, mounted on a support rotatably around the same axis a table for placing an object thereon, first means for maintaining the table in an inclined position relative to the support, the second


    four
    means for placing the table when moving it along the support, actuators, respectively, for tilting the table, moving it along the support and rotating the support with the table, a sensor for feeling the surface of an object mounted to move parallel to the axis of rotation of the support, and
    II side of this axis and from it with the corresponding drives, associated with the sensor computing means, including software associated with the drives of the inclination of the table and its
    movement along the support, characterized in that, in order to increase the convenience of operation, the first tool is made of three supporting elements installed at the vertices
    the center of the table, and the drive for tilting the table is associated with at least two supporting elements with the possibility, when adjusting one of the
    these support elements, the inclination of the table relative to the corresponding axis passing between the two other elements.
    [2]
    2. The device according to claim 1, of which is the support element. You are located at the vertices of an equilateral triangle.
    [3]
     3. The device on pl. 1 and 2, o t - is that the center of the table coincides with the center of
    triangle.
    [4]
    4. Device on PP. 1-3, characterized in that the table is movable
    in mutually perpendicular directions, and the right angle bisector intersects the third element and is equidistant from the first and second supporting elements.
    [5]
    5. Device on PP. 1-4, characterized in that the third support element is rigidly fixed to the base.
    P
    21
    nineteen
    33
    Zl P
    V
    37
    39
    FIG. four
    fig.z
    FIG. five
    类似技术:
    公开号 | 公开日 | 专利标题
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    EP0240150B1|1991-04-17|Workpiece position control
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    US4571847A|1986-02-25|Method and apparatus for use in co-ordinate measuring machines
    EP0180610B1|1990-06-13|Improvement relating to coordinate positioning apparatus
    US3869799A|1975-03-11|Universal multi-coordinate sensor
    US5253429A|1993-10-19|Levelling method and apparatus
    JPH0791949A|1995-04-07|Measuring device
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    US5572798A|1996-11-12|Metrological apparatus
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    JP2020015139A|2020-01-30|Machine tool and method for adjusting inclination of work-piece mounting base
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    同族专利:
    公开号 | 公开日
    SU1718735A3|1992-03-07|
    GB2189604A|1987-10-28|
    JPS62272186A|1987-11-26|
    GB8624396D0|1986-11-12|
    GB8605325D0|1986-04-09|
    DD255300A5|1988-03-30|
    JPH0370196B2|1991-11-06|
    IN169361B|1991-10-05|
    DD254771A5|1988-03-09|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    CN102607482A|2012-03-26|2012-07-25|西安交通大学|Aligning and levelling device for rotating platform of ultra-precise measuring machine|US3270423A|1963-09-30|1966-09-06|Sheffield Corp|Positioning device|
    US3839800A|1968-08-29|1974-10-08|Ibm|Method and apparatus for precisely contouring a work-piece imprecisely positioned on a fixture|
    GB1350566A|1972-09-27|1974-04-18|Bjoro Vzaimozameny Aemosti V M|Worktable for positioning workpieces in measuring devices forchecking linear dimensions|
    GB1452280A|1973-03-02|1976-10-13|British United Shoe Machinery|Measuring machines|
    GB1479621A|1974-08-07|1977-07-13|Rank Organisation Ltd|Measuring apparatus|
    CH595941A5|1976-03-02|1978-02-28|Fischer Ag Georg|DE3714862C2|1987-05-05|1992-04-02|Mauser-Werke Oberndorf Gmbh, 7238 Oberndorf, De|
    DE3907656C2|1989-03-09|1992-09-10|Bhs-Hoefler Maschinenbau Gmbh, 7505 Ettlingen, De|
    JP2523177B2|1989-04-28|1996-08-07|日本写真印刷株式会社|Positioning table|
    DE4005292A1|1990-02-20|1991-08-22|Zeiss Carl Fa|COORDINATE MEASURING DEVICE|
    JPH0830743B2|1991-03-07|1996-03-27|株式会社ミツトヨ|Leveling device|
    GB2291193B|1994-07-07|1997-12-03|Eastman Machine Co|Co-ordinate measuring machine|
    ITBO20000427A1|2000-07-14|2002-01-14|Primula Di Perrella Agostino|EQUIPMENT FOR DIMENSIONAL AND / OR GEOMETRIC CONTROL OF PIECES OF MACHINES WITH ROTATION SYMMETRY.|
    JP3738844B2|2002-09-04|2006-01-25|株式会社東京精密|Roundness measuring machine|
    GB2464509C|2008-10-17|2014-05-21|Taylor Hobson Ltd|Surface measurement instrument and method|
    JP2011085402A|2009-10-13|2011-04-28|Mitsutoyo Corp|Surface property measuring instrument|
    US8650939B2|2009-10-13|2014-02-18|Mitutoyo Corporation|Surface texture measuring machine and a surface texture measuring method|
    GB2474893A|2009-10-30|2011-05-04|Taylor Hobson Ltd|Surface measurement instrument and method|
    GB2478303B|2010-03-02|2018-03-07|Taylor Hobson Ltd|Surface measurement instrument and calibration thereof|
    GB201202456D0|2012-02-13|2012-03-28|Taylor Hobson Ltd|Measurement apparatus and method|
    GB2499660B|2012-02-27|2018-10-03|Taylor Hobson Ltd|Surface measurement apparatus and method|
    GB2508737B|2012-12-06|2017-03-22|Canon Kk|Contour shape measurement method|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    GB868605325A|GB8605325D0|1986-03-04|1986-03-04|Workpiece position control|
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