• 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:
    CLAMPING DEVICE, containing an elastic majet located between the elements of the screw-in system, characterized in that, in order to increase its service life, it is equipped with a brake made in the form of a disk with internal teeth designed for dp interaction with the screw of the screw-nut and the nut of this system is associated with the drive.
    公开号:SU1126207A3
    申请号:SU813239337
    申请日:1981-02-04
    公开日:1984-11-23
    发明作者:Бартелеми Фюминье Клод
    申请人:Понт-А-Муссон С.А. (Фирма)；
    IPC主号:
    专利说明:

    1 The invention relates to a device for clamping a rotatable cylindrical part and can be applied, in particular, on such machines as turning, cutting. A clamping device is known in which the fixation of a part which is set into rotational movement is achieved thanks to an elastic cuff located between the elements of the screw-nut system L. However, the known device is not suitable for multiple industrial use with a high rhythm for activating the screw pair. The purpose of the invention is to increase the life of the clamping device. To achieve this goal, a clamping device containing an elastic collar located between the elements of the screw-nut system is provided with a brake made in the form of a disk with internal teeth designed to interact with the screw-screw system nut, and the nut of this system is connected to the drive. FIG. 1 shows a clamping device, a general view; in fig. 2 section A-A in FIG. one; in fig. 3, a second embodiment of a clamping device for small diameters, in FIG. 4 shows a section BB in FIG. in fig. 5 shows a clamping device according to the second embodiment for large-diameter children. The clamping device comprises a device 1 for turning the pipe 2 into rotational movement with a horizontal axis located between the support 3 and the cutting device. The support 3 is a bed equipped with two braces in the rollers 5, the axes of which are parallel to the axis X-X. The cutting device 4 may contain a cutting tool 6 with radially moving or alternatively, as shown by the dash-dotted line in FIG. 1, detachable abrasive ZUICK 7 with trowel movement. The drive device 1 comprises a hollow spindle 8 mounted with bearings 9, rolling and stop in the frame 10, an epiploon 11 equipped with an elastomer cuff 12. 72 forming an annular clamp, a screw pair 13 and a brake 14. The gland 11 consists of two parts 15 and 16, placed on the sliding keys in the hollow spindle 8. The gland part 15, located closest to the cutting device 4, abuts against the retaining ring 17 placed in the inner groove of the spindle -8. Parts 15 and 16 have a cross-sectional shape in the form of two letters D and are telescopically connected to one another, and their inner diameter 3) somewhat exceeds the outer diameter of the clamped pipe. They define two radial shoulders 18 and 19 that are opposed to each other, axially delimiting an annular chamber of variable length, open towards the X-Xj axis in which a rectangular cuff 12 is placed having the same outer diameter as the annular chamber , and in a state of rest, it is practically not protruding behind this camera. The end of the spindle 8, which is opposite to the cutting device 4, has a toothed rim 20 with external gearing and an internal thread 21. The crown 20 engages with gear 22, which is mounted on the output shaft of the motor 23 or gear motor group with two directions of rotation and two speeds, an external thread coupling, forming a clamping screw 24, is screwed into the thread 21 and abuts against the gland portion 16 11. At the outer end of the screw 24 a brake disk 25 is inserted on the sliding key between the brake pads 26. One block 26 is placed on the cheeks fixed bracket 27, rigidly connected to the frame 28, and the other on the piston of the power cylinder 29 provided in the other cheek of this bracket and fed by the working medium under pressure through pipeline 30. Around the X-X axis several braking units can be placed -thirty. The bed 28 has an opening 31 with an axis X-X, the diameter of which is at least equal to the inner diameter of the screw 24, which, in turn, is equal to the diameter B of the gland parts 15 and 16. The clamping device works as follows. When the engine 23 is stopped and the screw pair 13 is loosened, the pipe 2 is mounted on the support rollers 5 and advanced through the opening 31 in the frame 28, through the spindle 8 and the cuff 12. The latter is in a bouncy state, and the brake 14 is released. To bring the pipe 2 into rotation, brake 14 is applied to brake pads 26, which prevents rotation of the coupling or clamping screw 24, then start the engine at low speed so that spindle 8 rotates in direction f (Fig. 2 ), which should be the direction of rotation of pipe 2 for cutting it off. The direction of the thread 21 is such that it ensures that the cuff 12 is clamped in this direction of rotation of the spindle. Therefore, in the case shown in FIG. 2, it is about the right thread. The clamping screw 24 thereby makes a screwing movement with respect to the spindle 8 forming the nut, resulting in a translational movement of the screw 24 relative to the spindle 8 in the direction of approaching the cuff 12 and, therefore, in the direction of the two parts 15 and 16 of the stuffing box 11. The cuff 12 is so is compressed in the axial direction and, being made of an incompressible material, expands in the axial direction and clamps the pipe 2, which is rigidly connected to the spindle 8. The tightening screw 24 will become possible due to the sliding key of the brake disc 25, which during translational motion is not movable. The brake 14 is activated only for a short time before the pipe 2 turns with the same speed as the spindle 8, and is clamped enough for the cutting operation in order to limit the movement of the tightening screw 24. Then the brake is turned off. the ram or cylinders 29, with the pads 26 moving away from the disk 25 and the engine moving to a higher rotational speed without changing its direction. After the brake has been switched off, the tightening screw 24 no longer moves in the axial direction, but continues to be rotated by the spindle 8 without relative movement to this spindle, and maintains its position of clamping the cuff 12 with the gland 11. The brake remains off during the entire cutting operation . When the segment is completed, the engine 23 stops. When the pipe 2 is stopped, the spindle 8 and the tightening screw 24 do not perform any rotational movement one relative to the other, and thus the cuff 12 remains clamped. In order to unclench the cuff 12 and release the pipe 2, the length of which has been produced, the motor is turned on at low speed in the opposite direction, i.e., in this example, in the direction of the arrow for spindle 8 (Fig. 2). In such a case, the pipe is rotated in the direction of arrow f still clamped by the cuff 12; Then, the brake 14 is briefly turned on, which creates an axial translational movement of the tightening screw 24 relative to the spindle 8, since this tightening screw is blocked by the disk 25, while the spindle 8 is set in rotational motion in the direction of the arrow i The tightening screw 24, unscrewed inside the spindle of the nut 8 and allows the gland 11 to open the elastic cuff 12, which at the expense of a Jew of elasticity squeezes part 16 of the gland and takes its original shape, freeing the tube 2. After releasing the tube 2, stop the engine 23 and the cut pipe 2 is retracted or pushed forward for the second length in the case of cutting the tubular washers. Alternatively, the disk 25 can be fixed on the screw 24, and the bracket 27 can be moved axially along the bed 28. In addition, other types of brakes can be used instead of the disk brake 14. The rotary device 1 can be used for any range of different diameters of the cut pipe 2. If it is necessary to change the diameter of the pipe, for example, clamp and turn the pipe 2 into a smaller part: the elastic ring cuff 12 and the two parts 15 and 16 of the stuffing box 11 Switching is thus simple and easy within the limits defined by the diameter of the screw 24 and the holes 31 of the frame 28. In FIG. 3 and 4, a second embodiment of the clamping device is shown. In the hollow spindle 8, which rotates in the frame 10, two parts 15 and 1 of the gland 11 are placed on the sliding keys, with part 15 resting against the ring 17. The cuff 12 is held between two parts 15 and 16 of the gland 11. The device according to the second embodiment and complement differs from the device (Fig. 1) by the following features relating to the screw pair 13. The tightening element of the gland is the ring 32, which moves in the spindle 8 and is provided on its outer side a series of threaded holes 33 with axes YY, parallel to the axis X-X and located on its periphery. In each of these holes, a screw has been placed, equipped with a disk 35. This disk is maintained in rotational motion, but remains stationary with axial translational movement between the end side of the spindle 8 and the groove 36 of the retaining ring 37 fixed to the spindle with screws (not shown). The continuation of each screw 34 passes through drilling in a ring 37, and gear 38 is placed at its end. All gears 38 engage with a gear ring 39 provided on the inner periphery of the brake disk 25, which forms part of the brake 14 formed in the same way. as the brake in FIG. 1. The disk 25 has an annular protrusion or hub 40, the movement of which is guided by a centering surface 41 rigidly connected to the brake frame 28. Spring-loaded axial pins 42, located along the periphery of the tongue 37,: are equipped with a friction pad at their free end, which fits to the disk 25. The device operates according to the second embodiment as a whole and is analogous to the device according to the first embodiment. to be clamped by a cuff 12, throttle. 25 is clamped by the friction pads 26, and the spindle 8 is driven into rotation at low speed. The clamping of the disk 25 leads to its locking, while the screws 34, which are rigidly connected with the rotation of the spindle 8 with the help of the col-; 37, is driven around the x-x axis. 5, as a result, screw-shaped heads, gears 38, are rolled along a gear ring 39 with an internal engagement of the disk 25, which is blocked. This leads to the unscrewing of the screws 34 in their threaded holes 33 and, consequently, to the axial movement of the ring 32, which pushes the portion 16 of the gland 11 towards the cuff 12 in order to compress it in the axial direction. As in the previous case, the tube 2 is clamped. When the latter rotates at the same speed as the spindle 8 with the required degree of clamping, the brake 14 is disconnected, the brake disk 25 is unlocked and driven by gears 38, resulting in starts rotating around axis xx at the same speed. The screws 34 no longer rotate around their Y-U axes, and thus the ring 32 and the gland portion 16 no longer move in the axial direction. With the right-hand thread of the screws 3, the rotational movements occur while clamping in the direction of the arrows, b (Fig. 4). To release the cut pipe 2, first stop the rotation of the spindle 8, stopping the engine for this. The motor is then driven to rotate in the opposite direction at low speed and, thus, the spindle 8 in the rf direction, opposite to the previous direction, and applies the brake 14 for the time necessary to completely separate the pipe 2 and the clamp 12. Since the disk 25 is blocked, then As the spindle 8, the ring 32 and the screws 34 rotate around the axis X-X in the direction g, the heads of the screws roll along the ring crown 39 in the direction h, the opposite direction h. These screws 34, which are blocked during translational movement with their disks 35, are screwed in such a case the threaded holes 33 of the ring 32, which leads to axial movement of this ring in the direction of distance from the cuff 12, which expands, releases in the axial direction and takes its original shape. When pipe 2 is released, the engine is retracted and, therefore, the spindle 8, the pipe can be removed and retracted or moved forward for a new piece. After the brake 14 is disengaged, the pins 42 serve to disconnect the disk 25 from the stationary pad 26, to avoid all harmful friction at this point, as well as to provide a small friction between the disk 23 and the rotating ring 37, to avoid any untimely depressurization of the pipe 2 machine due to inertia. FIG. 3 shows the replacement parts: parts 15 and 16 of the gland 11 and the cuff 12 for the pipe 2 of small diameter; in fig. 5 is the same device, but provided with clamping parts: parts 15 and 16 of the gland 11 and cuff 12 for a pipe 2 of a larger diameter. As in the example shown in FIG. 1 and 2, to switch the device to work with pipes of different diameters, it is necessary to replace only these three parts
    Fmg.2 7 If we compare the devices in the first and second versions, the advantage of the first device is its simplicity, since due to considerable friction when the screw 24 and the spindle 8 are in contact, due to the large diameter of the thread 21, it is difficult to overcome; clamping force generated on the cuff 12. Therefore, the first device 1 is quite suitable only for small machines that process tubular or cylindrical parts of small diameter, where the moment of friction is small compared with the clamping moment. In the case of large diameters, it is preferable to use the device according to the second embodiment, in which one large screw 24 is replaced with a series of screws 34 of small diameter. With this actual clamping force, the frictional moment is very significantly reduced, since it is proportional to the diameter of the screws 34 (or to the screw 24 in the first embodiment). In such a case, the frictional moment becomes small compared with the clamping moment, and the amount of clamping is completely overcome. Thus, the proposed design of the clamping device can significantly increase its service life.
    Fig.Z
    bb
    FIG.
    FIG. five
    权利要求:
    Claims (1)
    [1]
    CLAMPING DEVICE, containing an elastic cuff located between the elements of the screw-nut system, characterized in that, in order to increase its service life, it is equipped with a brake made in the form of a disk with internal teeth designed to interact with the screw of the screw-nut system, however, the nut of this system is connected to the drive.
    SU „) 1126207
    Figure 1 • forming an annular clamp, screw 'pair 13 and brake 14.
    The gland 11 consists of two parts 15 and 16, mounted on sliding 5 keys in the hollow spindle 8. The gland part 15, located closest to the cutting device 4, abuts against the locking ring 17 located in the inner groove of the spindle 10 8. 8. Parts 15 and 16 they have a cross section in the form of two letters G and are telescopically connected to one another, and their inner diameter D somewhat exceeds the outer diameter of the clamped pipe. They define two opposing radial shoulders 18 and 19, which axially define an annular chamber of variable length, open in the direction of the Х-Х axis, in which a cuff 12 of rectangular section is placed, having the same outer diameter as the annular chamber, and at rest, almost 25 protruding beyond this camera.
    The end of the spindle 8, opposite the cutting device 4, has a gear ring 20 with external gearing and an internal thread 21. The crown 20 clings to the gear 22, mounted on the output shaft of the engine 23 or gearmotor group with two directions of rotation and with two speeds, and the coupling with the external thread forming the clamping screw 24 is screwed into the thread 21 and abuts against the part 16 of the stuffing box 11.
    At the outer end of the screw 24, a brake disk 25 is placed on the sliding key, which extends between the brake shoes 26. One shoe 26 is placed on the cheek of the fixed bracket 27, rigidly connected with the frame 28, and the other on the piston of the power cylinder 29 provided in the other cheek of this brackets and pressurized feed medium through pipeline 30. Several brake assemblies 26-29-30 can be placed around axis X-X.
    The frame 28 has an opening 31 with the axis XX, the diameter of which is at least equal to the inner diameter of the screw 24, which, in turn, 55 is equal to the diameter Ό of the parts 15 and 16 of the gland.
    The clamping device operates as follows.
    类似技术:
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    同族专利:
    公开号 | 公开日
    FR2475167A1|1981-08-07|
    EP0033908B1|1983-05-18|
    DE3160287D1|1983-07-07|
    JPS56126553A|1981-10-03|
    JPS5813298B2|1983-03-12|
    UA6072A1|1994-12-29|
    AT3378T|1983-06-15|
    FR2475167B1|1984-06-29|
    US4386544A|1983-06-07|
    ES8202104A1|1982-01-01|
    ES499148A0|1982-01-01|
    BR8100696A|1981-08-18|
    EP0033908A1|1981-08-19|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US1577015A|1926-03-16|of los angeles |
    US1807385A|1929-01-25|1931-05-26|Albert E Church|Chuck|
    US1986494A|1931-01-19|1935-01-01|Battaline John|Chuck for lathes or the like|
    GB489240A|1937-02-05|1938-07-22|William Bradley|Improvements in or relating to work gripping and driving devices|
    US2174292A|1937-05-14|1939-09-26|Brown & Sharpe Mfg|Spindle control mechanism|
    US2687197A|1948-08-27|1954-08-24|Gisholt Machine Co|Clutch and brake for direct drive spindle lathes|
    GB717403A|1948-10-22|1954-10-27|Spieth Rudolf|Device for clamping workpieces|
    FR1156896A|1956-06-29|1958-05-22|Expandable chuck|
    US2960203A|1956-08-27|1960-11-15|Alfred H Schutte|Spindle arresting and chucking device for automatic multispindle lathes|
    DE1246359B|1962-06-06|1967-08-03|Kieserling & Albrecht|Device for guiding rod-like workpieces such as shafts and tubes on peeling machines|
    US3270592A|1964-01-03|1966-09-06|Collins Machinery Corp|Universal supporting and driving apparatus for pipe subjected to threading|
    US3602521A|1969-04-23|1971-08-31|Heald Machine Co|Chuck|
    CH576306A5|1973-07-10|1976-06-15|Index Werke Kg Hahn & Tessky|
    US3911768A|1974-08-16|1975-10-14|American Tara Corp|Core cutting apparatus|
    US4094104A|1976-10-07|1978-06-13|Synergetics, Inc.|Finishing machine|DE3118141C2|1981-05-07|1987-08-27|Maho Ag, 8962 Pfronten, De|
    DE3218083C2|1982-05-13|1986-11-27|Hubert Dipl.-Ing. 5920 Bad Berleburg Bald|Device for generating a setting torque, in particular for adjusting the position of the jaws of a chuck or the clamping force exerted by them|
    DE3218084C3|1982-05-13|1990-07-12|Bald Hubert|DEVICE FOR GENERATING A POSITION ROTATIONAL MOVEMENT|
    US4762187A|1987-07-29|1988-08-09|W-N Apache Corporation|Internal wrench for a top head drive assembly|
    JPH01107400U|1988-01-13|1989-07-19|
    JPH01181893A|1988-01-13|1989-07-19|Mousei Rin|Blowing method for toy making soap bubble in soap bubble|
    JPH01181892A|1988-01-13|1989-07-19|Mousei Rin|Blowing method for toy making soap bubble in soap bubble|
    US5036927A|1989-03-10|1991-08-06|W-N Apache Corporation|Apparatus for gripping a down hole tubular for rotation|
    DE3920612A1|1989-06-23|1991-01-03|Roehm Guenter H|DEVICE FOR GENERATING AN ACTUATING TORQUE FOR A MOTION TRANSFORMING SYSTEM, IN PARTICULAR FOR ADJUSTING THE JAWS OF A FORAGE OR THE CLAMPING FORCE EXERCISED BY THEY|
    DE19512664C2|1995-04-05|1997-03-20|Heidelberger Druckmasch Ag|Support device|
    DE19522711C2|1995-06-22|1997-07-10|Gildemeister Ag|Holding device for the workpiece spindle of a lathe|
    WO1999051380A1|1998-04-03|1999-10-14|N.T. Naum Technologies Ltd.|Automatic adjustable power chuck system and method|
    DE19850569C1|1998-11-02|2000-08-10|Reinhard Schroeder|Machine spindle|
    GB0028931D0|2000-11-28|2001-01-10|Pratt Burnerd Internat Ltd|Actuator for workpiece holding device|
    DE10141164B4|2001-08-22|2007-01-25|Donau-Werkzeugmaschinen Gmbh & Co. Kg|radial drilling|
    EP1729902B1|2004-03-31|2010-02-17|Eastland Medical Systems Ltd|Drive|
    DE102004037964A1|2004-08-05|2006-03-16|Karl Hiestand|Clamping device for machine tools|
    US20090121507A1|2007-11-08|2009-05-14|Willis Clyde A|Apparatus for gripping a down hole tubular for use in a drilling machine|
    CN102133659B|2011-01-26|2012-10-10|广东致顺化工环保设备有限公司|Plastic composite tubular product sample cutting machine for steel wire gauze framework|
    CN107042331B|2017-02-22|2018-12-04|浙江明新风机有限公司|A kind of industrial larger caliber steel pipe cutting equipment|
    CN109202677B|2018-10-12|2020-08-11|重庆艺美玻璃有限公司|Side polishing device for production of laminated glass|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR8002557A|FR2475167B1|1980-02-06|1980-02-06|
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