• 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 machine for the surfacing of ophthalmic lenses has a working head in which a supporting finger is axially mounted on a pivotable arm. Pivoting of the arm causes the supporting finger to approach a working station. The arm carries actuating means for the supporting finger which control the approach of the finger towards the working station and control the pressure applied by the finger at the working station. In addition, damping means are provided for damping oscillation and vibrations of said supporting finger.
    公开号:SU803853A3
    申请号:SU772530554
    申请日:1977-10-06
    公开日:1981-02-07
    发明作者:Бийо Пьер
    申请人:Эссилор Энтернасьональ (Фирма)；
    IPC主号:
    专利说明:

    one
    The invention relates to an abrasive treatment and can be used for grinding and polishing eye contact lenses.
    A device for processing optical components is known, comprising a frame with a swivel bracket mounted thereon, carrying a spindle with a bearing pin, mounted for axial movement and associated with a spring-loaded pneumatic cylinder rod. . .
    A disadvantage of the known construction is that at relatively low pressures caused by the processing of optical parts made of organic material, the spindle bearing pin undergoes axial vibrations leading to processing defects.
    The purpose of the invention is to improve the quality of processing.
    The goal is achieved by the fact that the device is equipped with a buffer tank and a lever located on the bracket and connected to the pneumatic cylinder body, one KOHeij of which is connected to the spindle, the other is hinged to the bracket, and the middle part - with the rod
    pneumatic cylinder, while the stem spring is located between the bowl inserted into the device and the stop, fixed respectively on the lever and the rod and bearing mounted on the end of one of them a shock-absorbing element.
    FIG. 1 shows a device for processing optical components in section; in fig. 2 - section aa of FIG. in fig. 3 - Bh-BB figure 1; in fig. 4 is a block diagram illustrating the operation of the clamping and damping means.
    The device contains two blocks 1 and 2, between which a lens to be processed is installed, while lens 3 can be fixed to block 1, then block 2 is a tool.
    The block 1 is affected by the support pin 4 by means of the mandrel 5.
    The support pin 4 is mounted on the bracket 6, which rotates on the shaft 7, placed on the frame 8.
    With the bracket 6 there are associated means for ensuring its rotation on the shaft 7, comprising a power cylinder 9, the casing of which is rotatably mounted on the bracket b, whereas
    The piston is pivotally connected at point 0 to a console 11, which is part of tannin 8.
    Controls are designed for the underwater pin 4 to revision 5.
    To fix the bracket 6 at the end of that approach, the console 11 has a V-shaped spike, with which the corresponding groove 12 of the corresponding shape, which is made on the lower arm (the stony console 13 connected to the bracket 6) borrows.
    The support pin 4 is mounted eccentrically on the spindle 14 mounted with rotation in the sleeve 15, with bearings 16 installed at each end of the sleeve between it and the spindle.
    The support pin can be pressed into the insert 17 attached to the end of the spindle 14, for example, by means of a thread.
    Bearings 16 axially holding relative to spindle 14 by elastic split rings inserted into the grooves of the latter ensure that the spindle is not axially aligned with the sleeve 15, in which it is mounted for rotation by the engagement of the shoulders on the inner surface of the sleeve.
    The sleeve 15 is installed with the possibility of axial movement in the tubular casing 18 connected with the bracket 6, as a result of which the bearing pin 4 in turn turns out to be fully movable in the axial direction relative to this bracket.
    The casing 18 is inserted into the yoke 19 mounted on the cantilever 13 connected to the frame 8 and fixed in this yoke 19.
    The casing 18 has on its inner surface a finger 20 inserted into a longitudinal groove. 21 sleeves 15, which prevents rotation of the latter.
    The spindle 14 carrying the bearing pin 4 has a spline extension 22 opposite to the finger, through which it is connected in rotation with the pulley 23, and an engine 24 is mounted on the bracket b to bring the pulley into rotation. Practically, the motor 24 is mounted on the console 25 connected to the bracket 6, the endless belt 26 is passed through the pulley 23 and the pulley 27 sitting on the output shaft of the engine 24.
    With the support finger 4, clamping means are connected to press it in the direction of the block 2, which are completely mounted on the bracket 6.
    These means comprise a power pneumocylinder 28, the body of which 29 is mounted on the arm 13, connected
    with the bracket 6, and the piston rod 30 of the piston 31 acting on the support pin 4.
    A spindle 14 carrying the bearing pin 4 is connected to one end of the lever 32, which interacts with its middle part with the power pneumatic cylinder 28, and with the other end is pivotally connected to a stand 33 connected to the bracket 6.
    The lever 32 forms a fork, the two branches 34 of which cover with their free ends a ring 35 fixed axially at the end of the spline extension 22 spindle 14 by means of bearings 36.
    On the ring 35 two protruding radial fingers 37 are installed at diametrically opposite points, on which branches 34 of the lever 32 are rotatably mounted.
    in the middle part of the branch 34 are similarly mounted to rotate on protruding radial fingers 38 located in diametrically opposite points on the intermediate part 39,
    inserted between the lever 32 and the piston rod 30 of the piston 31 of the power 1 cylinder 28.
    The intermediate piece 39 is a cup, through the bottom of which the stem 30 passes with a gap, while the outer side of the cup interacts with the radial shoulder 40 of the stem by means of the washer 41, while
    its inner side serves as a support for the spring 42, which forms elastic means installed between the rod 30 and the bearing pin 4.
    In addition, the spring 42 rests on the support 43f associated with the rod 30.
    The stop 43 is attached to the shoulder 44 of the stem 30 by a nut 45 screwed onto the threaded extension of the stem.
    The cup 39 has a circular groove 46 in which the noise absorbing element 47 is inserted, for example, from an elastic material to ensure quiet operation.
    The housing 29 of the power pneumatic cylinder 28 is connected to a buffer tank 48,
    mounted on a cantilever 25 connected with a bracket 6.
    A pipe 49 connecting the tank 48 to the body 29 of the power cylinder 28 is connected to the end of this body, which is entirely
    between the piston 31 of the cylinder and the support pin 4, as a result of which, at any position of the piston 31, the buffer capacity 48 is involved in creating an air volume acting on the support pin 4.
    A distributor 50 of any type / type is provided to control the connection of one or another body 2J of the power cylinder. 28 or to an air source (as shown by a string F on
    FIG. 4), or to release (as shown by the arrow F in figure 4)
    Gauge 51 serves to control the pressure in the volume, of which buffer capacity 48 is a part.
    The device works as follows.
    The power cylinder 9 provides, by rotating the arm b, the supply of the support pin 4 mounted on this arm to the block 2.
    To complete this supply and then apply the appropriate working pressure to blocks 1 and 2 through the support pin 4, it is sufficient with the aid of the distributor 50 to connect that of the ends 29 of the cylinder 28, which is between the piston 31 and the support finger 4, with a source of compressed air.
    In this case, the piston 31 t is not behind the rod 30 and the spring 42 provides elastic transfer of the corresponding force to the lever 32, and this force is transmitted by the lever to the spindle 14 and, consequently, to the support pin 4, regardless of the rotational movement that the latter makes as a result of the transfer he is driven by an engine 24.
    Possible oscillations and retraction of the support finger 4 when processing the lens 3 are simultaneously absorbed, on the one hand, by the volume of air, part of which is the buffer capacity 48, and the other side by the spring 42 inserted between the support finger and the piston 31, wringing it in the direction of the block 2.
    The damping force of the spring 42 is somewhat less than the damping force of the air volume, in the creation of which the buffer capacity 48 participates, so that the supply pressure of the power cylinder 28 is minimal
    Thus, the spring 42 practically provides for the absorption of only weak oscillations that the supporting pin 4 can perform, while
    the air volume, of which buffer capacity 4B is a part, elastically compensates for possible larger fluctuations of this finger.
    This is precisely the reason why the buffer tank 48 is connected to the body 29 of the power cylinder 28, since the volume of the body is not sufficient for the required oscillation compensation.
    The force cylinder 28 relates to both pressing and shock absorbing means associated with the finger 4, and is made separately with respect to the power cylinder 9 connected with the swing arm 6.
    The proposed design provides high quality processing due to the combined use of pressure and shock-absorbing means.
    权利要求:
    Claims (1)
    [1]
    1. Author's certificate of the USSR t 184648, KL.V24 V 13/00, 1964.
    4J
    36
    38
    30Found .2
    6-6
    II
    3
    23
      .
    类似技术:
    公开号 | 公开日 | 专利标题
    GB1429067A|1976-03-24|Mounting device for optical lenses
    SU803853A3|1981-02-07|Device for treatment of optical parts
    US3782042A|1974-01-01|Lens grinding and polishing units
    GB580110A|1946-08-27|Improvements in and relating to the grinding and polishing of lenses
    US1721161A|1929-07-16|Lens-grinding machinery
    SU902657A3|1982-01-30|Lathe for working optical parts
    US6123610A|2000-09-26|Polisher for spherical and non-spherical surfaces
    US2450237A|1948-09-28|Abrasive machine
    BE654464A|1965-02-15|CRANKSHAFT GRINDING MACHINE
    US3274737A|1966-09-27|Polishing of corneal lenses
    US4023311A|1977-05-17|Device for fine honing crankshafts
    US6203410B1|2001-03-20|Reamer with adjustable expansion/contraction, and bore finishing machine comprising the same
    US1272546A|1918-07-16|Lens-grinding machine.
    SU878510A1|1981-11-07|Device for working by abrasive tool
    DK151491B|1987-12-07|THUMB WRITING MECHANISM, ISSUED FOR AXIAL PUMP PUMP
    US2587952A|1952-03-04|Grinding machine
    US2659186A|1953-11-17|Ridge grinder for engine cylinders
    US2434769A|1948-01-20|Universal crankshaft bearing hone
    EP0518799B1|1996-04-10|Finishing machine with a combined rotation and reciprocation of the tool
    US1325835A|1919-12-23|Valve-abiwdeb
    CH307718A|1955-06-15|Device for superfinishing machined surfaces.
    SU1085771A1|1984-04-15|Apparatus for abrasion working
    SU1288027A1|1987-02-07|Device for working optical part
    SU63035A1|1943-11-30|Fitting to turning, grinding, etc. superfinish machine crankshaft
    SU1048635A1|1985-07-07|Device for centerless turning
    同族专利:
    公开号 | 公开日
    DE2744825C2|1982-12-02|
    FR2366912B1|1981-03-06|
    US4135890A|1979-01-23|
    JPS6043269B2|1985-09-27|
    JPS5345792A|1978-04-24|
    DE2744825A1|1978-04-13|
    GB1575376A|1980-09-24|
    CA1074565A|1980-04-01|
    FR2366912A1|1978-05-05|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US1272546A|1917-03-06|1918-07-16|Bausch & Lomb|Lens-grinding machine.|
    US1671027A|1923-04-24|1928-05-22|George Herman Arvene|Optical lens grinding and surfacing machine|
    US2916857A|1958-02-14|1959-12-15|American Optical Corp|Lens surfacing machines|
    US3330075A|1964-07-01|1967-07-11|Coburn Mfg Company Inc|Sphere polisher|
    GB1311851A|1969-04-30|1973-03-28|Crockford E M|Machines for smoothing an polishing lens|
    US3782042A|1972-07-03|1974-01-01|R Strasbaugh|Lens grinding and polishing units|
    JPS558303B2|1974-01-16|1980-03-03|
    FR2318003B1|1975-07-17|1977-12-16|Essilor Int|DE2847192C2|1978-10-30|1980-10-02|Goetze Ag, 5093 Burscheid|Machine for deburring or chamfering the edges of ring-shaped workpieces, especially piston rings|
    DE2855895C2|1978-12-23|1983-05-05|Schott-Zwiesel-Glaswerke Ag, 8372 Zwiesel|Machine for removing the dividing joint burr from non-metallic workpieces|
    US6080044A|1998-03-26|2000-06-27|Gerber Coburn Optical, Inc.|Fining/polishing machine|
    WO2001056740A1|2000-02-03|2001-08-09|Carl Zeiss|Polishing head for a polishing machine|
    CN102133728A|2010-12-11|2011-07-27|昆明台兴精密机械有限责任公司|Anti-collision buffering device of wafer single-side polishing machine|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR767630009A|FR2366912B1|1976-10-06|1976-10-06|
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