• 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:
    An arrangement for the grinding and cutting of rotary profile cutters having, in combination mounted on a base, a first reciprocable table on which is mounted a rotatable platen. A rotatable workpiece carrier assembly is fixed to the platen and these have mutually perpendicular axes of rotation. The carrier holds a collet for the milling cutter blank and a programmable indexer for the angular positioning of the blank in successive position. A second table can reciprocate perpendicular to the first and acts as a support for a block carrying a grinding wheel spindle head. The block is capable of oscillation to either side of a vertical position on an axis parallel to the axis of reciprocation of the second table and the grind wheel spindle head can slide perpendicular to the axis of rotation of the block. A rotatable grinding wheel carried by the spindle head can have its plane of gyration moved to either side of the axis of rotation of the block. Means are provided for effecting movement of the tables as are programmable driving mechanisms for controlling the movements.
    公开号:SU712015A3
    申请号:SU772493673
    申请日:1977-06-17
    公开日:1980-01-25
    发明作者:Майли Макс
    申请人:Аг Фюр Аутоматизирунг (Фирма)；
    IPC主号:
    专利说明:

    This invention relates to the maginostroenie. A known machine for sharpening phase milling cutters, comprising a “frame with mutually perpendicular guides on one side, on one of which there is a rotary table carrying the headstock of the product, and on others a table with a body carrying the grinding headstock, and located in bed drive drive grandmother issued 1. However, on this machine, it is impossible to handle shaped mills with a different profile, and the impossibility of using metal carbides in the manual treatment of shaped surfaces reduces the sharpening performance. The purpose of the invention is to increase the machining productivity by simplifying machine set-up. To do this, in the proposed machine, the body carrying the grinding headstock is mounted on a shaft introduced into the machine, located parallel to the table guide, while the drive of the headstock of the product is kinematically connected with the table carrying the grinding head by means of a rocker mechanism inserted into the machine. FIG. 1 shows the described machine, a general view of the front of the machine; in FIG. 2 - the same, the back of the machine; FIG. 3 is a view along arrow i of FIG. one; in fig., 4 - and. section bb in fig. 3; Fig. 5 is a fixture for securing the workpiece; in fig. 6 is a view along arrow B in FIG. five; in fig. 7 is a view along arrow G in FIG. 6; in fig. 8 - table carrying grinding wheel; in fig. 9 is a view along arrow D in FIG. eight; in fig. 10 - grinding wheel, cut; in fig. 11 is a view along arrow E of FIG. ten; on fi.g. 12 - LC section in FIG. ten; in fig. 13 is a section through an AND-fig in FIG. four; in fig. 14 is a scan of the device in FIG. 13; in fig. 15 - the rocker mechanism of the table carrying the grinding headstock; in fig. 16 is a variant of the device in FIG. four; in fig. 17 is a variation of the turntable control device; in fig. 18 is a cross-section K-K in FIG. 17; in fig. 19 is a cross section of LL in FIG. 18. The machine contains a frame 1, on the guides of which a carriage 2 is mounted, which serves as a support for the rotary table 3. On the rotary wall 3, the body 4 of the fixture 5 for fastening the milling cutter 6 is fixed. direction arrow o | and turntable 3 in the direction of the arrow ff. The device 5 can occupy different angular positions programmed by the divider 7. A second movable table 8 is also mounted on the bed 1 and can be moved along the arrow -.
    On the shaft 9 introduced into the machine, there is a housing 10 carrying the traveling grinding headstock 11. The housing 10 can swing in the direction of the arrow r on the shaft 9. The grinding headstock 11 carries an abrasive grinding wheel 12 driven by an electric motor 13..
    The carriage 2 is moved along the guides of the frame 1 with the link 14 (Fig. 4). In its central part there is a drive shaft 15, having in its lower part a wheel 16, working together with a rack 17, connected to a piston of a double-acting hydraulic cylinder 18. At the lower end of the drive shaft 15, an interchangeable cam 19 is fixed, located in contact with the roller 20 connected to the bed 1 by the housing 21 with a micrometer screw 22. In the upper part of the shaft 15 there is a gear 23 coupled to the gear 24 attached to the lower end shaft 25 mounted on a rotary table 3. A conical gear 26 is mounted on the shaft 25 and is designed for the transmission: rotation of the tool 5.
    The drive shaft 15 is mounted in the flange 27 mounted on the carriage 2 rotatably on needle bearings 28 and 29. On the upper part of the upper flange 27 a table 3 is fixed, on which the housing 4 of the fixture 5 for fixing the workpiece 6 is mounted, and on the lower part of the flange 27 is a drive gear 30 working together with a rack 31 connected to a piston of a double-acting hydraulic cylinder 32. When the piston of the hydraulic cylinder 18 is moved, the drive shaft 15 rotates, and when the piston of the hydraulic cylinder 32 is moved, the rotary table of the nonsuigiy housing 4 is adjusted. 5.
    A bevel gear 33 is mounted on the drive shaft 15, causing the same wheel rotating on the shaft 34 to rotate. One end of this shaft is connected to the potentiometer 35, and the other end 36 is in contact with a copier.
    The carriage 2 is moved by the piston of the hydraulic cylinder 37 in the interaction
    cam 19 with roller 20 and this movement is limited to the stop 38.
    The fixture 5 for fastening the cutter billet 6 is a shaft mounted in the housing 4. A collet clamp 39 is mounted on one end of the shaft, equipped with a hydraulic actuator 40 of a known type, and at the opposite end is a dividing disc 41 (Fig. 5 and 6). The device 5 receives the rotation and is controlled by the pawl 42 mounted on the oscillating complex 43 (Fig. 7). The helical motion is determined by the drive shaft 15 driven by the piston of the hydraulic cylinder 18 through the gear wheel 23, gear 24, bevel gears 26 and 44, shaft 45 and gears 46-49. The latter rotate on the movable support 50, which has two positions. In the first position, the gear 47 interlocks with the gear 51 (right rotation), in the second, the gear 49 engages with the gear 51 (left rotation). In accordance with the desired direction of rotation, the position of the movable support 50 is established.
    The movable table 8 (firm 8 and 9) is also mounted on the base 1 by means of the gate holder 52 and is moved by means of the gate 53. The movement of the table 8 is controlled by a hydraulic cylinder 54 connected to the table 8. The piston of the hydraulic cylinder 55 is connected to the holder 52 of the scenes 52. The cylinder 54 has two chambers with unequal volumes. The smaller chamber is connected directly to the high pressure oil source, and the larger chamber receives pressurized oil through valve 56, having a finger 57, which, depending on its position, feeds oil to the hydraulic cylinder, causing the table 8 to move in one direction or another.
    On the table 8, on the shaft 9, the body 10 is fixed (FIGS. 10-12), carrying the grinding head 11. The body 10 swings in communication with a support 58 connected to the Vis table by a longitudinal rod 59 located between the support 58 and the housing 10, which can swing in the direction of the arrow; This movement is controlled by two pistons of hydraulic cylinders 60 and 61. Polished headstock 11 is moved by means of the wings 62 from the stepper motor 63 through the worm gear 64, the gear wheel 65 of the cam shaft 66 and the roller 67.
    The grinding wheel 12 is mounted on the shaft 68, which is driven in rotation through the pulleys 69 and 70 by the electric motor 71.
    The rotation of the turntable 3 is controlled by a copier 72 (Figures 13 and 14). It controls the rotation, starting with the shaft 34 of the carriage 2, which is driven by the drive shaft 15 through the serrated wheel 33. At the end 36 of the shaft 34 is fixed the driveline 73 is driven by bevel gears 74 and 75 and the shaft 76 carrying the cam 77. The gear ratio between shafts 15 and 76 is 1, Shaft 76 is mounted on the link 78, which follows linear movements of the carriage 2 thanks to the beam 79, set at one end on the Curtain 78, and the other on the The flax 80 is connected to the carriage 2. On the link 78, a second link 81 is mounted, the movement of which is determined by the cam 77 acting on the roller 82 turning on the link 81. In addition, the link 81 has a valve 83, the pin 84 of which is in contact with the piston code of the hydraulic cylinder 3 2, controlling the rotation of the turntable 3. -::. : ,, ,,.;. ; . :
    To control the forward and backward flow of the table 8, the control mechanism 85 (Fig. 15), consisting of three wings 86-88, serves. Kulis 88 can be attracted to the table 8 by springs and also removed from it by a hydraulic cylinder (not shown) . On the linkage 86, a second linkage 87 is installed, which bears the pin 89, working together with the cam 90 located on the table 8. The third link 88 is also located on the link 86 and can be moved by the action of the stepper motor 91, which causes the screw 92 to rotate. a nut 93 connected to the klisa 88.
    In order to compensate for the depth, the machining mechanism 85 has an amplifying part formed by a lever 94, on which a gear sits on a shaft, driven by a rack 95, elastically located on the gate 87. As the slide 87 moves forward towards the part, the rack 95 turns the lever 94. This rotation is blocked when lever 94 rests on a copier (not shown in the drawings) located on the wings 88. The shape of the copier depends on the movement of the lever 94 and the movement of the rack 95. Lastly, when moving, it transmits the movement to the link 87, and atelno and NTHKPOmetricheskomu screw 96, which leads to a further displacement of the wheelhead 11. Here the grinding depth can be compensated by a stepping motor 91, since it allows to vary the position of the wings 88, the carrier copier, a lever 94 abuts otorrhea.
    One of the variants of the device shown in FIG. 4 is shown in FIG. 16 (gears 24 and 26 are not shown here, but only shaft 25 is shown mounted on a rotating table 3) „
    The drive shaft 15 can be driven directly by the hydraulic motor 97, and the flange 27 by the hydraulic motor 98. The hydraulic engine 97 via the planetary gears 99 and 100 and six gears 101 is connected to the driving shaft 15, and the hydraulic engine 98 directly with the flange 27. The hydraulic engine 98 is controlled through special software device (Fig. 17-19), 5 located on the base 1 at the level of sprockets 102 and 103 and secured to it with screws 104.
    The device housing 105 Carries the first link 106, rigidly connected 0 to the carriage 2 by the rod 107. The link 106 carries the second link 108, called the copying, which moves along two cylindrical guide bars 109 and 110 fixed on the link 106. The link 108 is connected to the hydraulic a valve 111 with four channels, which controls the rotation of the hydraulic motor. l 98.
    0 Gates 106 carries a vertical cam shaft 112 connected to a cam 113. intended to interact with a roller 114 fixed at the end of the lever; ha 115. The latter rotates on the axis 116 located on the wing 106, while the lever 115 acts on the link 108 The cam shaft 112 is connected to a sprocket 117, which, in turn, is connected by a gear
    118 chain with sprocket
    102. A cam shaft 112 has a gear wheel 119 coupled to a gear 120 mounted on a shaft 121 parallel to the cam shaft 112. The shaft 121 has a bevel gear 122 that drives a potentiometer 123, which produces a similar electrical signal of the angular position 1.13 cam. Q Link 108 is connected to the chain. the wheel 103 with a chain 124, one end of which is fixed to the sprocket 103 and the other at the point E of the connecting rod 125 carrying the nut 126. The arm 138 is held in the position of the Stop into the nut 126 by the spring 127 working in compression between the arm 108 and the wall 128 of the carriage 2. The chain 124 is located inside the pipe 129. This chain converts the straight linear movement of the turntable 108 to the rotary movement of the turntable 3. Turning the table 3 by 1 ° corresponds to moving the wings 108 by 0.89 mm.
    On the rocker 106 there is a platform 5 130, carrying a potential iometric
    a group (not shown) for converting the rotational movement of the drive shaft 15 and the cam 19 into a similar electrical signal. This potentiometric group is driven by gear 131, which, in turn, is driven by a spinning wheel 132, which is connected to the slide 108.
    The housing 105 also carries adjacent magnetic contact detectors 133-138, which are controlled by magnetic contacts 139145. They are designed to determine the length of the grinding section and allow grinding to begin and end at various points. The carriage 2 is moved by the detector, instead of which a microswitch can be used.
    The machine works as follows:
    The cylinder 18 receives the oil under pressure in the chamber located on the right in the drawing, (Fig. 4),. at the same time, its piston moves to the left, engaging the rotation shaft 15 and the gear shaft 16 through rotation of the crutch 15. At the same time, the piston of the hydraulic cylinder 37 moves the carriage 2, supporting the cam 19 in contact with the roller 20. In addition, the drive shaft 15 rotates with The gears 23 and gears 26 and 44 control the device b located in the housing 4.
    The carriage 2 and the slide 78 move together under the action of the piston of the hydraulic cylinder 37 (Fig. 4, 13). The cam 77 and the cuff .19, rotating at the same speed, move the slide 81 at the same time as the slide 78 and the finger 84. The latter, resting against the end of the hydraulic cylinder 32, moves the valve 83, feeding small into the hydraulic cylinder 32, which turns the rotary table 3. The piston of the hydraulic cylinder 32 moves until the finger 84 returns to its initial position.
    With the direct transfer dzheneni drive shaft 15 and flange 27
    From hydraulic engines 97 and 98, these hydraulic engines are controlled as follows.
    The hydraulic motor 97 rotates the drive shaft 15. The sprocket 102 drives the sprocket 117, which causes the cam to rotate from the control valve for the hydraulic valve 111, which controls the rotation of the sprocket 103, and therefore
    and rotating the turntable 3.
    At the same time, the carriage 2 and the linkage 106 are moved in accordance with the profile of the cam 19, and the gear wheel 23 rotates the tool 5. The ground workpiece of the mill b rotates around its axis with translational movement along its axis and around the axis of rotation of the rotary table 3, which allows em sharpening milling cutters of various profiles.
    权利要求:
    Claims (1)
    [1]
    1. US patent No. 2680263, CL. 51-225, 1972 (prototype).
    FIG. ) 2
    fji t ff7
    类似技术:
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    同族专利:
    公开号 | 公开日
    DE2726725A1|1977-12-22|
    US4163345A|1979-08-07|
    JPS5325987A|1978-03-10|
    FR2354848A1|1978-01-13|
    GB1563643A|1980-03-26|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU185996U1|2018-08-28|2018-12-26|ФЕДЕРАЛЬНОЕ ГОСУДАРСТВЕННОЕ БЮДЖЕТНОЕ ОБРАЗОВАТЕЛЬНОЕ УЧРЕЖДЕНИЕ ВЫСШЕГО ОБРАЗОВАНИЯ "Брянский государственный технический университет"|CNC Grinding Machine Layout|US2142710A|1937-10-09|1939-01-03|Benjamin S Lurie|Brake drum grinding|
    FR1307358A|1961-09-15|1962-10-26|Cake sharpener|
    FR1430083A|1963-10-03|1966-03-04|Latimier Soc|Advanced sharpening machine|
    US3680263A|1970-06-03|1972-08-01|Huffman S E Corp|Method and apparatus for grinding end cutting tools|
    US3713254A|1971-05-14|1973-01-30|O K Tool Co Inc|Controlled tool for machining compound surfaces|
    FR2144284A5|1971-06-30|1973-02-09|Habib Robert|
    US3820286A|1972-09-14|1974-06-28|Nasa|Grinding arrangement for ball nose milling cutters|
    FR2355611B1|1976-03-19|1978-12-22|Peronniat Jean Paul|US4341044A|1980-05-19|1982-07-27|Mcdonnell Douglas Corporation|Machine for grinding gashes in end mill cutters|
    US4550532A|1983-11-29|1985-11-05|Tungsten Industries, Inc.|Automated machining method|
    JPS60207758A|1984-03-31|1985-10-19|Morio Kitani|Twisted cutter ball end mill grinder|
    US5241794A|1990-05-30|1993-09-07|The Gleason Works|Grinding wheel for cutting blades|
    US5168661A|1990-05-30|1992-12-08|The Gleason Works|Method of grinding the surfaces of cutting blades and grinding wheel therefor|
    US7231849B2|2002-12-23|2007-06-19|Beattie John M|Reel mower conditioner|
    US20050239384A1|2004-04-26|2005-10-27|True Setting Sales|Reshaping fixture for carbide inserts|
    US20110275280A1|2010-05-07|2011-11-10|National Formosa University|Method of auto scanning and scraping a work piece for a hard rail|
    CN104924161B|2015-07-03|2017-04-12|王杰兴|Precise tool grinder|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH773176A|CH609603A5|1976-06-17|1976-06-17|Installation for grinding rotary milling cutters|
    CH669377A|CH612114A5|1977-06-01|1977-06-01|Installation for grinding rotating milling cutters|
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