• 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:
    In a process for machining a spur gear by using a grinding worm having a curved tooth thickness smaller than the final measurement of the curved tooth gap of the spur gear to be produced, the grinding worm is first directed radially towards the spur gear until the desired distance between the axes is reached. Subsequently, a relative circular feed movement is carried out consisting of a positive or negative additional rotating movement of the gear or the worm. This additional rotating movement is superimposed on the corresponding basic revolution of the gear or the worm. In this way, first one flank and subsequently the other flank of each gear tooth is machined to its final dimension. With this process, a full linear contact exists between the grinding worm and the tooth flank of the gear during roughing independent of the amount of material to be machined. Due to the existing play, an effective cooling is possible so that high grinding outputs can be achieved.
    公开号:SU1452465A3
    申请号:SU823377193
    申请日:1982-01-18
    公开日:1989-01-15
    发明作者:Вирц Вальтер
    申请人:Рейсхауер Аг (Фирма)；
    IPC主号:
    专利说明:

    :one
    This invention relates to metalworking and can be used in the manufacture of gear wheels.
    The purpose of the invention is to simplify processing and improve cooling due to optimal chip removal during the entire process.
    FIG. 1 - implementation scheme: method (conditional engagement abrasive
    a foot worm with a handled wheel; som); in fig. 2 - engagement fragment: (wheel tooth and screw hole); in fig. 3 — movement program during processing; in fig. 4 is a gear treatment device.
    The gear 1 is obtained by an abrasive screw 2 having a globoid profile (a gear can be used as a tool). The treatment is carried out under the conditions of rolling, obtained from the ratio of the teeth of the wheel and the tool. The profile 3 of the abrasive screw is chosen from the condition that the depression C between the circular teeth of the screw is greater than or equal to the thickness of the circular tooth DJ of the gear; CGO. This can be expressed as a function of the thickness Dg of the circular tooth of the screw and cavity L between the circular teeth of the gear:. An abrasive screw 2 is reported to deliver a full depth feed depth until a predetermined process distance is reached between the axes 0-0 and O, -O, the abrasive screw and the spur gear without contact with the untreated profiles 4 of the teeth of the product. There is a gap S between the profiles of the wheel and the tool, taking into account the machining allowance b. When reaching the center-to-center distance, the worm to 2 covers the wheel I from one end to the other. An additional circular feed movement between the wheel and the screw is then reported, consisting of a positive and subsequent negative (+ UO; -yo) additional rotational motion of the wheel or the screw, which is superimposed on the corresponding base speed. Due to this, one is processed first and then another profile of the teeth of the wheel. Then, nursing is performed. i
    The method is carried out in the following sequence.
    The abrasive worm is fed to the full depth, i.e. a feed movement is made from the center of the pre-machined cavity between the teeth of the wheel until the predetermined technological center distance a is reached. During step 5, the wheel is not processed. Then, the wheel is rotated at the WOR angle almost to the contact of the tooth profile with the profile of the abrasive screw 2. This additional rotational motion at the angle CDgj is imposed on the main number of wheel revolutions, i.e. the rotation of the latter is slightly accelerated. The magnitude of the free stroke can be measured, for example, by a sensitive element on the contact (step 6). Next, the right tooth profiles are machined (step 7), starting with roughing, corresponding to a relative rotation through the angle. Then, with the subsequent course of finishing, when turning the sogz angle, the final right-hand tooth profiles are processed (step 8). Step 9: IB right end position corresponding to the angle of rotation (Ots, rotational feed stops at time t for one or several turns for the purpose of nursing. Fflar 10 closes the return to the middle position and the round feed to the left tooth profile with the corresponding the profile of the abrasive worm. In general, the angle 00 is being accelerated to a free wheeling.
    Steps 11-13; similar to processing
    1452465
    section and in the direction of a circle of a cogwheel.
    A device for processing a gear wheel g I with an abrasive screw 2 contains a block 16 for inputting parameters of the screw 2 and a wheel, as well as processing data; fed by the input unit 16, a feed generator 17, which acts 10 on the position control circuit 18 to create feed and return movements of the tool carriage 19 on which the abrasive worm is mounted to 2; a regulation circuit 18, including a regulator 20, a servo amplifier 21, a carriage feed actuator 22, and a linear measuring system 23. In addition, the feed generator 17 is connected to the control circuit 24 to create a rotational motion of the wheel. The circuit 24 includes a controller 25, a power amplifier 26, a wheel drive 27 and a steering angle sensor 28. The signals from the feed generator 17 and the angle of rotation sensor 30 connected to the abrasive worm motor 29 form together a predetermined amount of wheel rotation (run-on circuit).
    The device works as follows 30 times.
    When a given technological center distance is reached, an abrasive is alternate to 2 globular points hyper 20
    25
    "y." ". . l, l XVlH i HUD
    the right tooth profiles are processed;
    rough and clean left tooth profiles (angle of rotation sa, 1, MC9j), after which the stop in the left end position Ots takes place during the holding time t ,. War 14:
    wheel 1 from one end to another. Depending on the angle of elevation of the helix and the direction of the helix of the screw and wheel, the angle of the cross wheel 1
    The rotation 40 of the axles can be from O accelerated by the angle of rotation.
    WM D ° achieve an average position for the worm exit. Step 15 (last) involves radial movement.
    up to 90. - In block 16, the following data is entered: the number of passes or teeth of the screw and the wheel, the thickness of the circular - - tooth of the core for profiling.
    Thus, when an abrasive is fed 45, the specified length of the circular tooth of a worm is at full depth of the forest, the specified distance a between turns in each direction of the feed path to the plunge, by a certain amount in relation to roughing and on the finishing side of its average position, in order to achieve the desired final size of the circular tooth. This is expressed as a function of the pitch radius.
    working in the direction of supplying the tool- 5Q mental carriage for the pre-circumference of the wheel g when noBQjpoTe last on
    tool profiling or pretreatment of a non-stocked product. In addition, in block 16, the following data are entered 55: speeds of individual feed phases for plunging or lateral feed, feed angles for plunging, roughing and finishing, and angular feed speeds
    L with
    The gap 8 and the allowance for processing in each tooth profile are measured in the face
    1452465
    section and in the direction of a circle of a cogwheel.
    The device for processing gear g wheel I with an abrasive screw 2 contains a block 16 for inputting parameters of a screw 2 and a wheel, as well as processing data; fed by the input unit 16, a feed generator 17, which acts 10 on the position control circuit 18 to create feed and return movements of the tool carriage 19 on which the abrasive worm is mounted to 2; a regulation circuit 18, including a regulator 20, a servo amplifier 21, a carriage feed actuator 22, and a linear measuring system 23. In addition, the feed generator 17 is connected to the control circuit 24 to create a rotational motion of the wheel. The circuit 24 includes a controller 25, a power amplifier 26, a wheel drive 27 and a steering angle sensor 28. The signals from the feed generator 17 and the angle of rotation sensor 30 connected to the abrasive worm motor 29 form together a predetermined amount of wheel rotation (run-on circuit).
    The device works as follows.
    When a given technological center distance is reached, an abrasive is alternate to 2 globular clamps hyper0
    five
    . "". . l, l XVlH i HUD
    g bald form covers gear
    Bolovaya form covers gear
    wheel 1 from one end to another. Depending on the elevation angle of the helix and the direction of the helix and wheel helix, the angle of intersection of the axes may be from 0
    45 is the specified width of the circular tooth of the wheel, the specified distance a between the axes of the infeed path for cutting, roughing and finishing
    processing in the direction of feeding the tool Q-carriage for pre-profiling the tool or pre-processing of a product that is not equipped with a tooth beforehand. In addition, the following data is entered in block 16: the speeds of the individual feed phases for plunging or lateral feed, feed angles for plunging, roughing and finishing, and angular feed speeds
    for plunging, roughing and finishing for additional rotational movement of the tool or product, as well as the holding time after the termination of feed movements for machining.
    Instead of separate worm and wheel drives, you can use a common drive. In this case, to view the rotational movement of the product from: the rotational movement of the tool and the rotational movement of the feed motor, use: gear ratio.
    It is possible to bring into motion: marrying only a worm, which, in: turn, sets in motion; gear wheel,; moreover, the additional rotational I motion is created by the braking torque I on the wheel. Instead of bringing in: move the worms. k can be brought to: movement in a similar way only the I wheel.
    权利要求:
    Claims (4)
    [1]
    1. A method of machining a gear under rolling conditions, characterized by the ratio of the number of teeth of the wheel I and the tool radially movable and made in the gear vvde: a wheel or a screw with a globoid transverse or negative rotational movement, which impose. on the rolling motion, and processing, respectively, at the beginning of one and then the other profile of the teeth of the wheel.
    [2]
    2. A method according to claim 1, characterized in that the processing of a single tooth profile of the product is carried out by applying for roughing and finishing, stopping in the final position for at least one revolution of the wheel followed by 1) running and similar
    processing another tooth profile.
    [3]
    3. A device for machining a gear wheel rotatably from a drive and chained rolling with a tool rotating from the drive, arrangements for the possibility of radial movement and return from the drive and made in the form of a gear wheel or
    a worm with a globular profile, the thickness of the circular tooth of which is less than the final size of the width of the hollow of the mezvud, circular teeth of the wheel, covered by the instrument from one
    butt to another, when achieving a given technological center distance, characterized by the fact that, in order to simplify processing and improve cooling, the device
    phylum, the thickness of the circular tooth which is additionally driven
    circular feed, angle sensors of the tool and wheel and an input unit, designed to enter at least one angle value
    smaller than the final dimension of the width of the cavity between the circular teeth of the wheel to be made, which are covered with tools from one end to the other when the specified technological center distance is reached, characterized in that, in order to simplify processing and improve cooling, radial flow is performed until the specified center distance is reached distance, and then make an additional circular feed movement, consisting of a positively supplied additional drive
    circular feed, angle sensors of the tool and wheel and an input unit, designed to enter at least one angle value
    turning.
    [4]
    4. The device according to claim 3, characterized in that the sensors are associated respectively with the tool and wheel drives, and one of these
    Drives are equipped with a regulator designed to receive measurement values from sensors and a signal from an input unit.
    g
    1
    s
    FIG. 2
    15
    tt} f
    Editor And, Rybchenko Tehred M. Didyk
    Order 7093/57 Edition 831 Subscription
    VNIIPI USSR State Committee
    for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5
    Production and printing company, Uzhgorod, st. Project, 4
    Fi2.3
    Proofreader A. Obruchar
    类似技术:
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    同族专利:
    公开号 | 公开日
    DD201860A5|1983-08-17|
    CS277172B6|1992-12-16|
    DE3150961A1|1982-09-02|
    US4635404A|1987-01-13|
    US4559744A|1985-12-24|
    CS31782A3|1992-05-13|
    JPH0229449B2|1990-06-29|
    CH650183A5|1985-07-15|
    JPS57144621A|1982-09-07|
    DE3150961C2|1986-04-10|
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    US3417510A|1965-05-10|1968-12-24|Wildhaber Ernest|Method and means for crowning teeth|
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    JP5244577B2|2008-12-22|2013-07-24|三菱重工業株式会社|Internal gear grinding machine|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH516/81A|CH650183A5|1981-01-27|1981-01-27|METHOD FOR MACHINING A GEAR WITH A ROTATING TOOL.|
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