CN203830851U - Directly-driven zero-transmission full-numerical-control horizontal type gear hobbing machine - Google Patents

Abstract

The utility model discloses a directly-driven zero-transmission full-numerical-control horizontal type gear hobbing machine which comprises a driving system, a transmission system, a numerical control system, a machine tool body, a workpiece control part, a tool part, a displacement control part, a protective cover, a tailstock box, a chip removal device, a cooling device, a hydraulic device and an electrical cabinet. A workpiece main shaft C, a tool main shaft B, a feeding shaft X and a tool running shaft Z are driven by directly-driven servo motors, and high-accuracy encoders and a grating ruler are used in a matched mode to carry out closed loop data control. The cooling device, the hydraulic device and the electrical cabinet are arranged outside the machine tool body in a matched mode. A laser tool setting device is arranged in front of the machine tool body. A directly-driven type workpiece main shaft box is arranged at the left end of the machine tool body. The movable tailstock box is arranged at the right end of the machine tool body and can move on the machine tool body through a sliding face. By means of the directly-driven zero-transmission full-numerical-control horizontal type gear hobbing machine, accumulative errors and division errors are eliminated, the machining accuracy is high, high-speed and efficient operation of the full-closed-loop numerical control system is achieved, power cutting machining and secondary gear hobbing operation are achieved, and the product surface quality is excellent.

Description

One is directly driven zero transmission Full-numerical-control horizontal hobbing machine

Technical field

The utility model relates to a kind of gear-hobbing machine manufacturing technology apparatus field, and particularly one is directly driven zero transmission Full-numerical-control horizontal hobbing machine.

Background technology

Manufacture in processing technique field at gear mechanism, gear is to be widely used in the spare part in common use that various power transmission shaft power transmits, tradition manufacturing processing technic uses gear-hobbing machine to carry out roughing mostly, then carry out fine grinding processing, because gear-hobbing machine precision and efficiency all can not meet the needs of gear process level, cause that Gear Production working (machining) efficiency is low, cost is high.

Existing numerical control horizontal gear hobbing machine bed is generally to reequip on common mechanical type gear hobbing lathe, common electric machine on mechanical type gear hobbing lathe is replaced with to servomotor or stepper motor, each through-drive chain is still by mechanical part transmissions such as gear, turbines, so do not improve in its machining accuracy, just reduce labour intensity, improving production efficiency; Existing numerical control horizontal gear hobbing machine bed, there is part axle by servo motor transmission, although the mechanical part transmission such as multi-stage gear is simplified to some extent in each through-drive chain, but adopt mechanical transmission more, still cannot thoroughly eliminate the impact of accumulated error and the error of division; Adopt mechanical transmission, driving error is large, transmission accuracy is low, process velocity is slow, equipment failure rate is high, maintenance is complicated.Gear Processing precision has determined the effect of bringing into play in gear application, in overall process, as long as there is the transmission of an axle to have non-direct drive pattern, will have influence on the raising of the machining accuracy of overall lathe, and also can there are wearing and tearing in gear itself, thereby further increase the machining accuracy of driving gearshaft, also can have influence on the service life of whole lathe.

Patent of invention CN102825340A, a kind of chain digital control gear hobbing machine is disclosed, be to roll stream tooth machine by common number to transform, the transmission mechanism of the generating motion parts in general NC gear-hobbing machine be optimized, realize electric machine main shaft and hobboing cutter main shaft, motor and workbench between zero transmission; Improve whereby the machining accuracy of general NC gear-hobbing machine; Shortcoming is that the improvement of general NC gear-hobbing machine is existed to inadequate natural endowment, only realize zero transmission of motor and cutter shaft, workbench, still there is mismachining tolerance in control and transmission for other main shaft, is more early stage technological transformation, is difficult to realize high accuracy processing.

Patent of invention CN101298106A, a kind of Zero-drive chain digital control gear hobbing machine is disclosed, it drives the second main shaft of hobboing cutter rotation to be directly connected with servomotor, leading screw in hobboing cutter feed screw nut is directly connected with corresponding servomotor, but driving the mode of work spindle C still for being to drive it to rotate by a gear train, can only be the limited driving error that reduces.

Utility model patent CN202726203U, discloses a kind of full-automatic seven axles pair and has directly driven numerical control dry cutting gear-hobbing machine, and all shifting axles of lathe are numerical control axle, the two technology of directly driving of cutter spindle B and work spindle C; But shortcoming is: the servomotor on tool-post structure connects reductor, reductor connects ball-screw by shaft coupling, left socle and right support are housed on ball-screw, the tool-post structure directly driving still has ball-screw-transmission, that is to say and control the feed shaft X of cutter spindle B displacement and walk cutter shaft Z and all do not realize the mode of directly driving, so cannot avoid the generation of the error of division of accumulated error, machining accuracy cannot improve.Although be Full-numerical-control, be not entirely directly to drive.

In sum, in prior art, in the work spindle of horizontal hobbing machine bed and cutter spindle and relevant three axes of coordinates controls, also more or less retaining gear transmission mode, exactly because in crucial work spindle and cutter spindle direction, there is no the reform of essence yet, cause current manufacture to add the precision of gear work technique good not, the efficiency of producing is not high, and the operation stability of horizontal hobbing machine bed is bad, is difficult to carry out the secondary operations of gear; Lack a kind of horizontal hobbing machine bed of high-efficiency high-precision Full-numerical-control, meet actual manufacture and the needs of producing.

Utility model content

For solving the problems of the technologies described above, the utility model provides a kind of zero transmission Full-numerical-control horizontal hobbing machine bed that directly drives, for existing defect problem in gear manufacture processing, thoroughly remove two intermediate transmission link gears of numerical control horizontal gear hobbing machine bed cutter spindle and two intermediate transmission link gears of work spindle, on the precision axis that is related to workpiece to be machined, all adopt direct-drive type zero transmission mode, fundamentally avoid the accumulated error and the error of division that cause due to gear drive, improve the machining accuracy of workpiece; Adopt Full-numerical-control mode to improve the batch production efficiency of Integral horizontal type gear hobbing lathe; Divide tooth and the control of differential implementation closed-loop, guarantee the stability operation of whole horizontal hobbing machine bed; Optimize structural design and the tool setting function of complete machine, realize gear manufacture processing and the secondary gear hobbing processing of high-accuracy high-efficiency rate.

For achieving the above object, the technical solution of the utility model is as follows: one is directly driven zero transmission Full-numerical-control horizontal hobbing machine, comprise gear-hobbing machine form 1., gear-hobbing machine assembly 2., drive system 4., transmission system 5., digital control system 6. with corollary apparatus 7.; It is characterized in that:

Described overall machining accuracy and efficiency of directly driving zero transmission Full-numerical-control horizontal hobbing machine, be closely related with the every key element of gear-hobbing machine, from overall hardware, structure, position, connection, type of drive, transmission mode, numerical control measure, the performance embodying to entirety and function all can directly have influence on machining accuracy and the efficiency of gear-hobbing machine; Meet in this respect Bucket Principle, as long as wherein there is a short slab, whole bucket level just cannot raise; As long as there is one axially to have defect in the key elements such as structure, driving, transmission, control, the machining accuracy of overall gear-hobbing machine and efficiency and relevant function also just cannot get a promotion.The utility model has all proposed corresponding optimizing design scheme in above-mentioned every key element for this reason, thereby could be in the machining accuracy of overall gear-hobbing machine and efficiency, and real realization is significant, the lifting of matter.

Described gear-hobbing machine also claims generating to carry out Gear Processing according to generation method; Described generation method is during according to a pair of meshed transmission gear, and the flank profil of the two-wheeled each other principle of conjugate curves is processed.When gear hob cutting, the shape of hobboing cutter is as a spiral, and its projection on wheel blank end face is a tooth bar, and in the time that hobboing cutter rotates continuously, the projection tooth bar that is equivalent to an endless moves forward.When processing straight spur gear, because the helix of hobboing cutter must be consistent with the teeth directional of spur gear, therefore need a lead angle of hobboing cutter axis inclination; The relative motion of hobboing cutter and wheel blank has two, and one is rolling movement, and for cutting goes out the required number of teeth, another is feed motion, and hobboing cutter moves along wheel blank axis direction.

1. described gear-hobbing machine forms, and comprises lathe body, workpiece control part, cutter portion, displacement control part, protective cover, tailstock case, chip removal device, cooling device, hydraulic means and regulator cubicle; Described lathe body top is provided with protective cover; In the middle of described lathe body, be provided with automatic filings discharging device; Outside described lathe body, be supportingly provided with described cooling device, hydraulic means and regulator cubicle; Be provided with laser tool setting device in lathe body front; Direct-drive type workpiece spindle box is arranged on the left end of lathe body, the right-hand member of lathe body is provided with removable tailstock case, tailstock case can move by sliding surface on lathe body, and described transmission system is by 6 axis servomotors: nose angle regulating shaft A, cutter spindle B, work spindle C, feed shaft X, alter cutter shaft Y and walk cutter shaft Z and form; On lathe body, be provided with the direct-drive type workpiece spindle box that drives workpiece rotation, in described workpiece spindle box, be provided with work spindle C; On described lathe body, be provided with the direct-drive type tool head that drives hobboing cutter rotation, described tool head is provided with cutter spindle B; On described lathe body, be provided with along the translating device of X, Y, the translation of Z direction, the nose angle adjusting device that drives tool head to turn along YZ plane internal rotation; Described X, Y, Z are vertical between two in space, and feed shaft X, along fore-and-aft direction setting, alters cutter shaft Y along upper and lower to setting, walks cutter shaft Z along left and right directions setting.

Described lathe body is provided with the direct-drive type workpiece spindle box that drives workpiece rotation, is provided with work spindle C, i.e. C axle in described workpiece spindle box; On described lathe body, be provided with the direct-drive type tool head that drives hobboing cutter rotation, described tool head is provided with cutter spindle B, i.e. B axle; On described lathe body, be provided with drive tool head by processing request the translating device along X, Y, the translation of Z direction, drive the cutting-tool angle adjusting device that turns along YZ plane internal rotation by processing request of tool head, i.e. A axle; Described X, Y, Z are vertical between two in space, and feed shaft X, along fore-and-aft direction setting, alters cutter shaft Y along upper and lower to setting, walks cutter shaft Z along left and right directions setting.Also be provided with laser tool setting device in lathe body front, be convenient to the workpiece secondary operations after clamping again.

The other end of described lathe body is provided with removable tailstock case, and tailstock case can move by sliding surface on lathe body.Tailstock case is provided with tailstock centre, and tailstock centre and direct-drive type work spindle C are coaxially oppositely arranged, and is driven and can be moved along its axial stretching by cylinder component by barrel of tail stock, holds out against or unclamp the centre of gyration of workpiece to be processed.Between tailstock casing left end and barrel of tail stock, be provided with 4 locking oil cylinders of stopping, eliminate the gap between barrel of tail stock and tailstock casing.

Described lathe body top is provided with protective cover, can open and close, for the protection of complete machine; In the middle of described lathe body, be provided with chip removal mouth, described chip removal mouth is communicated with automatic filings discharging device, and automatically will process iron filings and discharge outside lathe body; Outside described lathe body, be supportingly provided with described cooling device, hydraulic means and regulator cubicle, for the utility model gear-hobbing machine provides relevant equipment.

2. described gear-hobbing machine assembly, comprising: six main shafts, main spindle box, feed box, dragging plate mechanism, connecting shaft knot, bracket supporting plate etc.

On described lathe body, be provided with work spindle C; Cutter spindle B axle; Nose angle regulates principal axis A; Described work spindle C is arranged on workbench and is parallel with work top, described cutter spindle B is arranged on tool head and is vertical with work top, described nose angle regulating shaft A is arranged on feed shaft X feed box and is parallel with work top, for adjusting control cutting-tool angle; Described tool head is arranged on three-dimensional console, and described three-dimensional console is arranged at lathe body middle part; On described three-dimensional working platform, be provided with X, Y, tri-shifting axles of Z, described in to walk cutter shaft Z be the axle moving along workbench parallel direction, described feed shaft X is arranged in X feed box, controls the feeding of fore-and-aft direction and moves; Described rear of altering cutter shaft Y and be arranged at described cutter spindle B, be arranged in parallel with described cutter spindle B, controls moving up and down of tool head.Described walk cutter shaft Z be provided with away cutter shaft Z dragging plate mechanism; The described cutter shaft Y that alters is provided with and alters cutter shaft Y plate mechanism.Described work spindle C is provided with workpiece spindle box; Described feed shaft X is provided with feed shaft X main spindle box; Described cutter spindle B is provided with tool head.Various main shafts tie by connecting shaft with driving, running part or board bracket is connected.

3. the position of described gear-hobbing machine be connected, described cutter translating device and nose angle adjusting device comprise can along walk the translation of cutter shaft Z direction walk cutter shaft Z dragging plate mechanism, can be along the feed shaft X feed box of feed shaft directions X translation, can alter cutter shaft Y dragging plate mechanism along what alter cutter shaft Y translation.And driving tool head is at the cutting-tool angle adjusting device of YZ rotation with in surface.Walking cutter shaft Z dragging plate mechanism is arranged on lathe body by straight-line rolling guide set, feed shaft X feed box is arranged on away on cutter shaft Z dragging plate mechanism by rail plate pair, alter cutter shaft Y dragging plate mechanism and be arranged on feed shaft X feed box front end, nose angle regulating shaft A is arranged on feed shaft X feed box upper left quarter by worm gear pair.

Described direct-drive type workpiece spindle box is arranged on one end of lathe body, and work spindle C (rotating shaft) passes through the direct Driven by Coaxial of connector by hollow servomotor.Work spindle C is hollow shaft, and its right-hand member is provided with telescopic clamp compact form Workpiece clamping head assembly.

The rotating speed of direct-drive type work spindle C is followed according to generating process principle according to the rotating speed of direct-drive type cutter spindle B automatically by upper control system.The actual circumferential position of work spindle C is determined by coaxial mounted high-precision encoder.

Direct-drive type tool head comprises cutter spindle casing, cutter spindle B, knife bar, hollow servomotor, connector, knife bar pull bar, high-precision encoder and bracket; Cutter spindle B is set to B axle (rotating shaft), is directly driven by connector by hollow servomotor.The actual circumferential position of cutter spindle B is determined by coaxial high-precision encoder.Knife bar is strained by pull bar, and the hobboing cutter of different size can be installed on knife bar, is provided with knife bar bracket at knife bar tail end.

Walking cutter shaft Z dragging plate mechanism comprises walking cutter shaft Z planker seat, walks cutter shaft Z servomotor, walks cutter shaft Z ball screw assembly.Walk cutter shaft Z servomotor and tie and directly drive cutter shaft Z ball screw assembly, by connecting shaft, drive cutter long feed by the screw Connection Block on ball screw assembly.Walking cutter shaft Z planker seat is arranged on lathe body by straight-line rolling guide set.

Feed shaft X feed mechanism is arranged on away on cutter shaft Z dragging plate mechanism by plastic-sticking guiding rail.Comprise feed shaft X feed box, feed shaft X servomotor, feed shaft X ball screw assembly.Feed shaft X servomotor is tied and is directly driven into cutter shaft X ball screw assembly, by connecting shaft, and feed shaft X screw Connection Block is fixed on away on cutter shaft Z planker seat, and feed shaft X ball-screw is arranged on feed shaft X feed box; Rotary actuation feed box by ball-screw moves forward and backward to realize cutter radial feed.

Alter cutter shaft Y dragging plate mechanism comprise alter cutter shaft Y planker seat, alter cutter shaft Y servomotor, decelerator, connecting shaft knot, T-shaped lead screw pair, nut seat.Alter cutter shaft Y servomotor connection reducer, then connecting shaft knot, then drive T-shaped lead screw pair, drive direct-drive type tool head to move along Y-direction by the nut seat being fixed in T-shaped lead screw pair, realize cutter and alter cutter function.Altering cutter shaft Y dragging plate mechanism is fixed on gyroaxis.Alter cutter shaft Y dragging plate mechanism by pull bar, gyroaxis, be arranged on feed shaft X feed box.By butterfly spring group, accurate locking nut, coupling mechanism force acts on pull bar, will alter cutter shaft Y dragging plate mechanism and be locked on feed shaft X feeding casing by gyroaxis.Be provided with oil cylinder and cylinder body in feed shaft X feed box rear end.In the time that cutting-tool angle need to be turned round, oil cylinder first compresses butterfly spring group, reduces the coupling mechanism force between gyroaxis and feed shaft X feeding casing, then cutter adjustable angle.After cutting-tool angle adjustment completes, oil cylinder is return, and butterfly spring group acts on accurate locking nut, and coupling mechanism force acts on pull bar, by locking again between gyroaxis and feed shaft X feeding casing.

A axle cutting-tool angle adjusting device is made up of A axle servomotor, reductor, connecting shaft knot, worm gear pair; A axle servomotor drives worm gear pair by reductor and connecting shaft knot, drives the cutter shaft Y dragging plate mechanism of altering being fixed on gyroaxis to rotate, and realizes cutting-tool angle adjustment.Turbine in worm gear pair is fixed on gyroaxis.

4. the drive system of described gear-hobbing machine, comprises the type of drive of A, B, C, X, Y, Z axis and drives servomotor.

The utility model gear-hobbing machine application built-in electric motor directly drives technology, cutter spindle B adopts hollow driven by servomotor, it is upper that described hollow servomotor is directly sleeved on cutter spindle B, a high precision position encoder feedback main spindle's of the coaxial installation of described cutter spindle B afterbody; Work spindle C adopts hollow driven by servomotor, and it is upper that described servomotor is directly sleeved on work spindle C, a high precision position encoder feedback main spindle's of the coaxial installation of work spindle C afterbody.Between workpiece and cutter, there is not so any mechanical transmission component, be referred to as " zero transmission "; Feedback element direct-detection hobboing cutter and work shaft position, formed the closed-loop of real meaning.Can obtain desirable indexing accuracy and good surface quality.

Described feed shaft X directly drives control by servomotor, and linear grating chi feedback position information is set; Described walk cutter shaft Z directly drive control by servomotor, and linear grating chi feedback position information is set; Feed shaft X with walk cutter shaft Z position and all form Closed-loop Nc System, type of drive all adopts servomotor directly to drive, thereby the feeding of having guaranteed the feed shaft X of solid tool main shaft B is moved and walked, the feed of cutter shaft Z moves is all to realize directly driving under state.

Described nose angle regulating shaft A is provided with high precision position encoder, adjusts positional information for controlling cutting-tool angle, described in alter cutter shaft Y and be also provided with upper-lower position control grating scale, accurately control upper and lower tool displacement distance.Although nose angle regulating shaft A adds and carries out at non-workpiece with the adjustment operation of altering cutter shaft Y man-hour, that is to say nose angle regulating shaft A and alter cutter shaft Y and there is no need direct driving, but nose angle regulating shaft A is the machining accuracy that can have influence on solid tool main shaft B with the mobile control of altering cutter shaft Y with feedback, for this reason, knife degree regulating shaft A is equipped with high-precision encoder, alters cutter shaft Y linear grating chi is housed.

5. the transmission system of described gear hobbing, comprises reductor, screw mandrel, and leading screw, collet fixture etc.,

Described Design of Transmission System technical scheme is: by six axis servomotors: cutter angular adjustment axle A; Cutter spindle B; Work spindle C; Feed shaft X; Alter cutter shaft Y and walk cutter shaft Z; Form the main body transmission system of direct-drive type zero transmission Full-numerical-control horizontal hobbing machine bed; 6 described axis servomotors are undertaken numerical control operated by upper digital control system by generation method hobbing principle; Upper digital control system, according to technological parameter, is exported corresponding pulse and is driven corresponding servomotor to each axis servomotor, and position signalling is fed back to upper digital control system by the encoder of respective shaft or grating scale.And adopt 15 cun of very color touch screens as operation interface, directly perceived, convenient; The concrete transmission scheme of each operating axis is as follows: B through-drive directly drives (zero transmission) cutter spindle B rotation by B shaft hollow servomotor; (directly driving); C through-drive directly drives (zero transmission) cutter spindle B rotation by C shaft hollow servomotor; (directly driving); Feed shaft X transmission directly drives ball-screw 48 to be with cutter to realize cutter spindle B radial feed by feed shaft X servomotor; (directly driving); Walking cutter shaft Z transmission directly drives ball-screw 53 to be with cutter to realize cutter spindle B long feed by walking cutter shaft Z servomotor; (directly driving); Altering cutter shaft Y transmission drives T-shaped leading screw 36 to realize the upper and lower entirety of cutter spindle B by reductor 33 to alter cutter by altering cutter shaft Y servomotor 32; A through-drive drives worm gear pair 41 (scroll bar 411 and turbine 412) to realize milling head angle adjustment by A axle servomotor 57 by reductor 56.

6. the digital control system of described gear-hobbing machine, comprises touch screen controller, high-precision encoder, linear grating chi, laser tool setting device, electrical control cabinet etc.All undertaken controlling in real time and regulating by closed loop control loop system.

The utility model direct-drive type zero transmission numerical control horizontal gear hobbing machine bed application built-in electric motor directly drives technology, cutter spindle B adopts hollow driven by servomotor, it is upper that described hollow servomotor is directly sleeved on cutter spindle B, and main shaft tail is coaxially installed a position coder feedback main spindle's; Work spindle C adopts hollow driven by servomotor, and it is upper that described servomotor is directly sleeved on work spindle C, and main shaft tail is coaxially installed a position coder feedback main spindle's.Described feed shaft X directly drives control by servomotor, and linear grating chi feedback position information is set; Described walk cutter shaft Z directly drive control by servomotor, and linear grating chi feedback position information is set; Feed shaft X with walk cutter shaft Z position and all form Closed-loop Nc System.Described nose angle regulating shaft A is provided with high precision position encoder, adjusts positional information for controlling cutting-tool angle, described in alter cutter shaft Y and be also provided with upper-lower position control grating scale, accurately control upper and lower tool displacement distance.

Feedback element: linear grating chi and high-precision encoder direct-detection hobboing cutter and work shaft position, and real time information is fed back to control system, and send reflection order by control system, cutter and work axle are adjusted to operation, form the closed-loop of real meaning.Can obtain desirable indexing accuracy and good surface quality.

Closed-loop control in the utility model has cutter spindle B (B axle), work spindle C (C axle), radial feed (feed shaft X), axial feed (walking cutter shaft Z), alters cutter shaft Y and nose angle regulating shaft A; The current physical location of cutter spindle B encoder direct-detection cutter spindle B also feeds back to upper digital control system, and upper digital control system obtains the current physical location of cutter spindle B by cutter spindle B encoder, do not need to arrange in addition detecting element; Feed shaft directions X is provided with grating scale and detects feed shaft X feed box physical location; Walk the physical location that cutter shaft Z direction is provided with grating scale and detects away cutter shaft Z planker seat; Nose angle regulating shaft A is provided with high-precision encoder, alters cutter shaft Y and is provided with grating scale.

During this is novel, be provided with laser tool setting device in lathe body front; After workpiece machines for the first time, do not dismantle workpiece, operator starts tool setting function on touch screen controller, laser tool setting function on, work spindle C starts by the speed of setting, upper control system is calculated the center of teeth groove, the width of teeth groove automatically, and stores corresponding data, and after completing, work spindle C stops the rotation; Then workpiece can be dismantled, when the workpiece of same model needs again clamping secondary operations, install workpiece, operator starts tool setting function on touch screen controller, laser tool setting function on, work spindle C is the position location to correct teeth groove center by the data automatic rotation of this model workpiece, then just can again cut.

7. described gear-hobbing machine corollary apparatus, comprises automatic filings discharging device, cooling device, hydraulic means etc.

In the utility model, be provided with automatic chip-removal mouth at lathe body middle part, add and by automatic filings discharging device, smear metal is discharged automatically man-hour; On lathe body, be also provided with integral protection cover, protective cover is by direct-drive type workpiece spindle box, direct-drive type tool head and hobboing cutter moves and the encapsulation of hobboing cutter angular adjustment apparatus.Protective cover front is provided with the dodge gate that can move left and right.

Outside described lathe body, also supporting cooling device and the hydraulic means of having arranged, for the utility model gear-hobbing machine provides required relevant equipment.

8. the performance of described gear-hobbing machine and functional character, comprise high efficiency, high-speed, high accuracy; The stability of secondary gear hobbing processing and gear-hobbing machine and reappearance; Full-numerical-control zero programming operation; Dryly cut processing; Hard Gear shape process; Tool Management System; Collision prevention function; Cutting Process memory function.

Described work spindle C, cutter spindle B, feed shaft X and walk cutter shaft Z and all adopt servomotor direct drive mode, the gear transmission part relevant to Workpiece Machining Accuracy and indexing accuracy all dispensed, therefore fundamentally got rid of in gear hobbing process, the generation of accumulated error and the error of division and accumulation problem are the essential measures that improves Workpiece Machining Accuracy; In Gear Processing field, the complete directly pattern of driving is an important innovations of gear hobbing lathe, the optimize and improve of other parts or device all depends on most basic technological innovation, if the not essence optimization in type of drive, peripheral setting with the improvement of installing is all unavoidable can produce accumulated error and the error of division.

※ has high efficiency: the described zero transmission Full-numerical-control horizontal hobbing machine bed main shaft that directly drives adopts high-precision high-speed bearing and without intermediate transmission link, make its spindle speed directly depend on the rotating speed of its direct driving motor, the direct driving motor speed of this novel middle employing reaches 3000rpm; High rotating speed can be brought the high speed performance of modern cutter into play incisively and vividly, raises the efficiency more than 10 times than traditional horizontal hobbing machine bed.

※ has at a high speed: described work spindle C, cutter spindle B, feed shaft X and walk cutter shaft Z and entirely directly drive zero transmission mode, the processing vibration and vibration problem of transmission of having avoided mechanical gear transmission to cause, therefore the running of equipment complete machine can realize steadily processing operation under higher speed, thereby enhance productivity, save production cost.Maximum speed of spindle reaches 3000rpm; Workbench maximum speed can reach 1000rpm.High rotating speed can be brought the high speed performance of modern cutter into play incisively and vividly, thereby obtains very high production efficiency.While using " Speedcore " and carbide hob, linear velocity can reach 300m/min.

※ has high accuracy: due to the electronic gearbox that divides tooth and differential motion to take closed-loop control and adopted, a point tooth precision can reach 4 grades or higher.In actual applications, machining accuracy is subject to the restriction of hobboing cutter and clamping workpiece precision, and machine tool accuracy is no longer the factor that affects machining accuracy.In production practices, under rational clamping and cooling condition, in the time of high-speed cutting, can obtain 6 grades of stable machining accuracies.Due to above-mentioned direct-drive type zero driven Design and structure optimization improvement, make the utlity model has the excellent surface quality of desirable indexing accuracy and workpiece.

※ workpiece secondary operations and stability, reappearance: due to direct-drive type zero driven Design of the utility model employing, be provided with laser tool setting device, can in the time of secondary operations, make hobboing cutter and gear grooved align and make surplus even, thereby the secondary operations that makes workpiece becomes and may and obtain stable processing characteristics, described work spindle C, cutter spindle B, feed shaft X and walk cutter shaft Z and entirely directly drive zero transmission mode, cause stability and the reappearance of processing technology and process, therefore can realize the processing that repeats of the secondary operations of workpiece and identical workpiece, guarantee the uniformity of the machining accuracy of batch workpiece.

※ Full-numerical-control zero programming operation: Numerical control system, adopting 15 cun of very color touch-screens is operation interface, zero Programming, provide convenience for using with operation, all six axis servomotors are pressed generation method hobbing control by upper digital control system, by encoder and grating scale real time detection signal, and form closed loop control loop, and match with direct-drive type zero transmission mode, entirety improves performance and the machining accuracy of horizontal hobbing machine bed.

Direct-drive type numerical control horizontal gear hobbing machine bed provides a parameterized operation interface for user, and user is according to workpiece situation input cutter parameters, workpiece parameter, technological parameter and feeding number of times, without any need for programming instruction.To operating personnel require low.

Described work spindle C and cutter spindle B all select hollow servomotor, all adopt axle sleeve dress and high precision position encoder or grating scale detection position signal, guarantee to drive real-time and the accuracy fed back with signals collecting.

The described cutter shaft Y that alters adopts reductor, the design of T-shaped screw mandrel; Described nose angle regulating shaft A adopts reductor, scroll bar and turbine design.Described work spindle C, cutter spindle B, feed shaft X and walk cutter shaft Z direct-drive type zero driven Design and formed and do not have any mechanical transmission component between workpiece and cutter, truly realize zero transmission, therefore just can make position coder detection signal realize and transmit in real time and feedback, could realize the closed-loop Data Control of control system.

※ is dry cuts processing: because zero transmission makes robust motion and the automatic moving cutter function of lathe, direct-drive type horizontal hobbing machine bed is become and the most applicablely carry out high-speed dry and cut the lathe of Hobbing processing.The horizontal hobbing machine bed that pure machine driving or driving-chain are grown is not suitable for high-speed dry and cuts hobbing processing, because the driving error of mechanical drive train causes the vibration in rolling cut process, and this vibration for high-speed dry cut, the hard crisp cutter material of quality is fatal impact, vibration causes the heel and toe wear of blade, and cutter has been lost profile accuracy soon.

The hard Gear shape process of ※: direct-drive type numerical control horizontal gear hobbing machine bed can carry out secondary tool setting to quenching hard gear by laser tool setting device, can use " Speedcore " and carbide hob to carry out the processing of secondary high-speed rolling-cutting to quenching hard gear, and hardness can reach HRC62.

※ Tool Management System: evenly altering cutter is the important means that improves cutter life, reduces sharpening amount and sharpening number of times.Can arrange and alter cutter step pitch, alter cutter original position and final position, alter cutter number of times.When altering cutter number of times while reaching predetermined value, lathe is shut down, and prompting operation person checks cutter or changes cutter.

Use direct-drive type Full-numerical-control horizontal hobbing machine, evenly alter cutter because adopting to control, the wear extent of the cutting edge of hobboing cutter is approached unanimously, make full use of each cutting edge of hobboing cutter, significantly improve cutter life.

※ collision prevention function: machine tool center adopts absolute coordinate to the position of workpiece centre, can prevent hobboing cutter that program error causes and the collision of workpiece.

The storage of ※ Cutting Process: building database in system, can store the cutting parameter of 1000 workpiece for call later.

Pass through technique scheme, the beneficial effect of technical solutions of the utility model is: this novel crucial axle B, C, X, Z axis at horizontal hobbing machine bed all adopts and directly drives structure (zero transmission), fundamentally eliminate accumulated error and error of division link, the machining accuracy of workpiece is improved; This novel optimal design is significantly simplified frame for movement, thereby realizes the processing of gear hobbing high efficiency; Owing to entirely directly driving and optimal design, make feedback element direct-detection hobboing cutter and work spindle C live signal, form closed-loop digital control system truly, make the utility model have desirable calibration machining accuracy; Directly drive zero drive technology owing to having adopted, operation stability of the present utility model is improved greatly, thereby can implement high-speed cruising and dryly cut processing; The gear product excellent surface quality of processing; Adopt red laser tool setting technology because this is novel, made the utility model to carry out secondary hobbing operation to workpiece, further improved precision and the quality of processing; This novel service life that can extend cutter; This novel can also processing hard flank of tooth material; This novel direct-drive type providing zero transmission numerical control horizontal gear hobbing machine bed, can be used for high-accuracy high-efficiency rate processing spur gear, helical gear, bevel gear, drum gear, turbine, sprocket wheel, synchronous pulley, straight splined shaft, the oblique splined shaft of low-angle, tapering splined shaft etc.

Brief description of the drawings

In order to be illustrated more clearly in technical scheme in the utility model embodiment or prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.

Fig. 1 is the disclosed a kind of direct-drive type zero transmission Full-numerical-control horizontal hobbing machine transmission system schematic diagram of the utility model embodiment;

Fig. 2 is the disclosed a kind of direct-drive type zero transmission Full-numerical-control horizontal hobbing machine structural diagrams intention of the utility model embodiment;

Fig. 3 is the disclosed a kind of direct-drive type zero transmission Full-numerical-control horizontal hobbing machine left view schematic diagram of the utility model embodiment;

Fig. 4 is the disclosed a kind of direct-drive type zero transmission Full-numerical-control horizontal hobbing machine top view schematic diagram of the utility model embodiment.

Numeral and the represented corresponding component title of letter in figure:

1. lathe body, 2. workpiece spindle box, 3. tool head, 4. alter cutter shaft Y dragging plate mechanism 5. feed shaft X feed boxes, 6. walk cutter shaft Z dragging plate mechanism, 7. protective cover, 8. tailstock case 9. nose angle regulating shaft A, 10. laser tool setting device, 11. automatic filings discharging devices, 12. touch screen controller 13. work spindle C, 14. hollow servomotor C, 16. connecting shaft knot C, 17. encoder C18.. workpiece loosen oil cylinder, 19. cylinder bodies, 20. Workpiece clamping head bodies, 21. Workpiece clamping head B22. butterfly spring groups, 23. accurate locking nuts, 24. encoder B, 25. knife bar pull bar 26. connecting shaft knot B, 27. servo motor B, 28. cutter spindle casings, 29. cutter spindle B30. knife bars, 31. knife bar brackets, 32. servomotor Y, 33. reductor Y34. connecting shaft knot Y, 35. alter cutter shaft Y planker, 36.T type lead screw pair, 37. nut seat 38. feed shaft X feeding casings, 39. gyroaxises, 40. pull bar Y, 41. worm gear pair 42. butterfly spring groups, 43. accurate locking nuts, 44. oil cylinders, 45. cylinder body 46. servomotor X, 47. connecting shaft knot X, 48. ball screw assembly, X, 49. nut seat X50. planker Z, 51. nut seat Z, 52. line slideway auxiliaries, 53. ball screw assembly, Z54. connecting shaft knot Z, 55. servomotor Z, 56. reductor A, 57. servomotor A58. tailstock centres, 59. barrel of tail stocks, 60. tailstock oil cylinders, 61. tailstock casings

Detailed description of the invention

Below in conjunction with accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, described embodiment is only the utility model part embodiment, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.

According to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the utility model provides a kind of direct-drive type zero transmission Full-numerical-control horizontal hobbing machine, comprise gear-hobbing machine form 1., gear-hobbing machine assembly 2., position be connected 3., drive system 4., transmission system 5., digital control system 6. with corollary apparatus 7., and performance and functional character are 8., it is characterized in that:

Described gear-hobbing machine forms, and comprises lathe body 1, workpiece control part, cutter portion, displacement control part, protective cover 7, tailstock case 8, automatic filings discharging device 11, cooling device, hydraulic means and regulator cubicle.

Described gear-hobbing machine assembly, comprises six main shafts, main spindle box, feed box, dragging plate mechanism, connecting shaft knot, bracket supporting plate and oil cylinder etc.

The drive system of described gear-hobbing machine, comprises the type of drive of A, B, C, X, Y, Z axis and drives servomotor.

The transmission system of described gear hobbing, comprises reductor, screw mandrel, leading screw, collet fixture etc.

The digital control system of described gear-hobbing machine, comprises touch screen controller 12, high-precision encoder, linear grating chi, laser tool setting device 10, electrical control cabinet etc.Nose angle regulating shaft A9, cutter spindle B29, work spindle C13, feed shaft X, alter cutter shaft Y and walk cutter shaft Z and all undertaken controlling in real time and regulating by closed loop control loop system.

Described gear-hobbing machine corollary apparatus, comprises automatic filings discharging device 11, cooling device, hydraulic means etc.

The performance of described gear-hobbing machine and functional character, comprise high efficiency, high-speed, high accuracy; The stability of secondary gear hobbing processing and gear-hobbing machine and reappearance; Full-numerical-control zero programming operation; Dryly cut processing; Hard Gear shape process; Tool Management System; Collision prevention function; Cutting Process memory function.

Described gear-hobbing machine module position be connected setting, on described lathe body 1, be provided with the direct-drive type workpiece spindle box 2 (work spindle C13 is wherein set to C axle) that drives workpiece rotation, on described lathe body, be provided with the direct-drive type tool head 3 (cutter spindle B29 is wherein set to B axle) that drives hobboing cutter rotation, on described lathe body, be provided with drive tool head 3 by processing request the hobboing cutter translating device along X, Y, the translation of Z direction; On described lathe body, be provided with the nose angle regulating shaft A9 (described A axle) that drives tool head 3 to turn along YZ plane internal rotation by processing request.Described X, Y, Z are vertical between two in space, and feed shaft X moves setting along fore-and-aft direction, alter cutter shaft Y and arrange to mobile along upper and lower, walk cutter shaft Z and move setting along left and right directions.Also be provided with laser tool setting device 10 in lathe body 1 front, be convenient to the workpiece secondary operations after clamping again.

The guide rail of lathe body 1 holding workpieces main spindle box 2 and removable tailstock case 8 adopts two dovetail guides, makes force structure be better than level gauge.The guide rail that lathe body 1 supports hobboing cutter translation and setting angle adjusting device adopts precise linear guide pair, makes that its intensity is high, wearability good.

Hobboing cutter translating device and nose angle regulating shaft A9 comprise can along walk the translation of cutter shaft Z direction walk cutter shaft Z dragging plate mechanism 6, can be along the feed shaft X feed box 5 of feed shaft directions X translation, can alter cutter shaft Y dragging plate mechanism 4 along what alter cutter shaft Y translation.And driving tool head 3 is at the nose angle regulating shaft A9 of YZ rotation with in surface.Walking cutter shaft Z dragging plate mechanism 6 is arranged on lathe body 1 by precise linear guide pair, described feed shaft X feed box 5 is arranged on away on cutter shaft Z dragging plate mechanism 6 by rail plate pair, the described cutter shaft Y dragging plate mechanism 4 of altering is arranged on described feed shaft X feed box 5 front ends, and described nose angle regulating shaft A9 is arranged on feed shaft X feed box 5 upper left quarters by worm gear pair 41.

Direct-drive type workpiece spindle box 2 is arranged on the left end of lathe body 1, and work spindle C13 is set to C axle (rotating shaft), and by torque type, hollow servomotor C14 ties the direct Driven by Coaxial of C16 by connecting shaft.Work spindle C13 is hollow shaft, and its right-hand member is provided with telescopic clamp compact form Workpiece clamping head assembly.Direct-drive type workpiece spindle box 2 left ends are provided with workpiece and loosen cylinder body 19, and workpiece loosens and in cylinder body 19, is provided with workpiece and loosens oil cylinder 18.

Telescopic clamp compact form Workpiece clamping head assembly is made up of collet body 20, telescopic clamp compact form Workpiece clamping head 21, butterfly spring group 22, accurate locking nut 23.According to the replaceable telescopic clamp compact form of workpiece different size Workpiece clamping head 21.The working position of telescopic clamp compact form Workpiece clamping head 21 right-hand members is provided with tapering, and periphery is provided with decile groove.Described collet body 20 heads are provided with the tapering coordinating with telescopic clamp compact form Workpiece clamping head 21.

Compress butterfly spring group 22 and adjust the chucking power of telescopic clamp compact form Workpiece clamping head 21 by adjustment precision locking nut 23 in advance.Butterfly spring group 22 acts on telescopic clamp compact form Workpiece clamping head 21, by Workpiece clamping.Need loosen workpiece time, workpiece loosens oil cylinder 18 and compresses butterfly spring group 22, and telescopic clamp compact form Workpiece clamping head 21 is ejected, and discharges workpiece.

In telescopic clamp compact form Workpiece clamping head 21, be provided with workpiece locating centre.

The rotating speed of direct-drive type work spindle C13 is followed according to generating process principle according to the rotating speed of direct-drive type cutter spindle B29 automatically by upper control system.The actual circumferential position of work spindle C13 is determined by coaxial mounted high-precision encoder C17.

Direct-drive type tool head 3 comprises cutter spindle casing 28, cutter spindle B29, knife bar 30, hollow servo motor B 27, connecting shaft knot B26, knife bar pull bar 25, high-precision encoder B24 and knife bar bracket 31.Cutter spindle B29 is set to B axle (rotating shaft), ties B26 directly drive by hollow servo motor B 27 by connecting shaft.The actual circumferential position of cutter spindle B29 is determined by coaxial high-precision encoder B24.Knife bar 30 is strained by knife bar pull bar 25, and the hobboing cutter of the different size of same apertures can be installed on knife bar 30, when the not identical hobboing cutter in aperture is installed, need change corresponding knife bar, is provided with knife bar bracket 31 at knife bar tail end.

The right-hand member of described lathe body 1 is provided with removable tailstock case 8, and tailstock case 8 can move by two dovetail sliding surfaces on lathe body 1.Tailstock case 8 is provided with tailstock centre 58, and tailstock centre 58 is coaxially oppositely arranged with direct-drive type work spindle C13, is driven and can be moved along its axial stretching by cylinder component 60 by barrel of tail stock 59, holds out against or unclamp the centre of gyration of workpiece to be processed.Between tailstock casing 61 left ends and barrel of tail stock 59, be provided with 4 locking oil cylinders of stopping, eliminate the gap between barrel of tail stock 59 and tailstock casing 61.

Described walk cutter shaft Z dragging plate mechanism 6 comprise walking cutter shaft Z planker seat Z50, walk cutter shaft Z servomotor Z55, walk cutter shaft Z ball screw assembly, Z53.Walk cutter shaft Z servomotor Z55 and tie Z54 by connecting shaft and directly drive cutter shaft Z ball screw assembly, Z53, drive cutter long feed by the screw Connection Block Z51 on ball screw assembly, Z53.Walk cutter shaft Z dragging plate mechanism 6 by secondary 52 settings of precise linear guide and lathe body 1.

Described feed shaft X feed mechanism is arranged on away on cutter shaft Z dragging plate mechanism 6 by laminating pair of dovetail guide.Comprise feed shaft X feeding casing 38, feed shaft X servomotor X46, feed shaft X ball screw assembly, 48.Described feed shaft X servomotor X46 ties X47 by connecting shaft and directly drives into cutter shaft X ball screw assembly, 48, and feed shaft X screw Connection Block X49 is fixed on feed shaft X feeding casing 38.Described feed shaft X servomotor X46, feed shaft X ball screw assembly, 48, connecting shaft knot X47 are arranged at away on the planker Z50 of cutter shaft Z dragging plate mechanism 6; Rotary actuation feed shaft X feed box 5 by ball screw assembly, 48 moves forward and backward to realize cutter radial feed.

Described alter cutter shaft Y dragging plate mechanism 4 comprise alter cutter shaft Y planker 35, alter cutter shaft Y servomotor Y32, reductor Y33, connecting shaft knot Y34, T-shaped lead screw pair 36, nut seat 37.Alter cutter shaft Y servomotor Y32 and connect reductor Y33, then connect connecting shaft knot Y34, then drive T-shaped lead screw pair 36, drive direct-drive type tool head 3 to move along Y-direction by the nut seat 37 being fixed on cutter spindle casing 28, realize cutter and alter cutter function.

The described cutter shaft Y dragging plate mechanism 4 of altering is fixed on gyroaxis 39.Alter cutter shaft Y dragging plate mechanism 4 by pull bar Y40, gyroaxis 39, be arranged on feed shaft X feed box 5.By butterfly spring group 42, accurate locking nut 43, coupling mechanism force acts on pull bar Y40, will alter cutter shaft Y dragging plate mechanism 4 and be locked on feeding casing 38 by gyroaxis 39.Be provided with oil cylinder 44 in feeding casing 38 rear ends, cylinder body 45.In the time that cutting-tool angle need to be turned round, oil cylinder 44 first compresses butterfly spring group 42, reduces the coupling mechanism force between gyroaxis 39 and feeding casing 38, then cutter adjustable angle.After cutting-tool angle adjustment completes, oil cylinder 44 is return, and butterfly spring group 42 acts on accurate locking nut 43, and coupling mechanism force acts on pull bar Y40, by locking again between gyroaxis 39 and feeding casing 38.

Described nose angle regulating shaft A9 is made up of A axle servomotor A57, reductor A56, worm gear pair 41.The servo electric A57 of A axle drives worm gear pair 41 by reductor A56, drives the cutter shaft Y dragging plate mechanism 4 of altering being fixed on gyroaxis 39 to rotate, and realizes cutting-tool angle adjustment.Turbine in worm gear pair 41 is fixed on gyroaxis 39.

In the utility model, be provided with laser tool setting device 10 in lathe body 1 front.After workpiece machines for the first time, do not dismantle workpiece, operator starts tool setting function on touch screen controller 12, laser tool setting function on, work spindle C starts by the speed of setting, upper control system is calculated the width of workpiece Cao center, workpiece groove automatically, and stores corresponding data, and after completing, work spindle C stops the rotation.Then workpiece can be dismantled.When the workpiece of same model needs again clamping secondary operations, install workpiece, operator starts tool setting function on touch screen controller 12, laser tool setting function on, work spindle C is the position location to correct workpiece groove center by the data automatic rotation of this model workpiece, then just can again cut.

In the utility model, be provided with automatic filings discharging device 11 at lathe body 1 middle part, add and by automatic filings discharging device 11, smear metal is discharged automatically man-hour.On lathe body 1, be also provided with integral protection cover 7, protective cover 7 is by direct-drive type workpiece spindle box 2, tool head 3 and hobboing cutter moves and the encapsulation of hobboing cutter angular adjustment apparatus.Protective cover 7 fronts are provided with the dodge gate that can move left and right.

By above-mentioned specific embodiment, the beneficial effects of the utility model are: this novel crucial axle B, C, X, Z axis at horizontal hobbing machine all adopts and directly drives structure (zero transmission), fundamentally eliminate accumulated error and error of division link, the machining accuracy of workpiece is improved; This novel optimal design is significantly simplified frame for movement, thereby realizes the processing of gear high efficiency; Owing to entirely directly driving and optimal design, make feedback element direct-detection hobboing cutter and work spindle C live signal, form closed-loop digital control system truly, make the novel desirable calibration machining accuracy that has; Directly drive zero drive technology owing to having adopted, operation stability of the present utility model is improved greatly, thereby can implement high-speed cruising and dryly cut processing; The gear product excellent surface quality of processing; Due to this novel laser tool setting technology that adopted, make the utility model to carry out secondary gear hobbing operation to workpiece, further improve precision and the quality of processing; This novel service life that can extend cutter; This novel can also processing hard flank of tooth material; This novel direct-drive type providing zero transmission numerical control horizontal gear hobbing machine bed, can be used for high-accuracy high-efficiency rate processing spur gear, helical gear, bevel gear, drum gear, turbine, sprocket wheel, synchronous pulley, straight splined shaft, the oblique splined shaft of low-angle, tapering splined shaft etc.

To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiment, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.

Claims (7)

1. directly drive a zero transmission Full-numerical-control horizontal hobbing machine, it is characterized in that, comprise gear-hobbing machine formation, gear-hobbing machine assembly, drive system, transmission system, digital control system and corollary apparatus; Described gear-hobbing machine forms, and comprises lathe body, workpiece control part, cutter portion, displacement control part, protective cover, tailstock case, chip removal device, cooling device, hydraulic means and regulator cubicle; Described lathe body top is provided with protective cover; In the middle of described lathe body, be provided with automatic filings discharging device; Outside described lathe body, be supportingly provided with described cooling device, hydraulic means and regulator cubicle; Be provided with laser tool setting device in lathe body front; Direct-drive type workpiece spindle box is arranged on the left end of lathe body, the right-hand member of lathe body is provided with removable tailstock case, tailstock case can move by sliding surface on lathe body, and described transmission system is by 6 axis servomotors: nose angle regulating shaft A, cutter spindle B, work spindle C, feed shaft X, alter cutter shaft Y and walk cutter shaft Z and form; On lathe body, be provided with the direct-drive type workpiece spindle box that drives workpiece rotation, in described workpiece spindle box, be provided with work spindle C; On described lathe body, be provided with the direct-drive type tool head that drives hobboing cutter rotation, described tool head is provided with cutter spindle B; On described lathe body, be provided with along the translating device of X, Y, the translation of Z direction, the nose angle adjusting device that drives tool head to turn along YZ plane internal rotation; Described X, Y, Z are vertical between two in space, and feed shaft X, along fore-and-aft direction setting, alters cutter shaft Y along upper and lower to setting, walks cutter shaft Z along left and right directions setting.

2. one according to claim 1 is directly driven zero transmission Full-numerical-control horizontal hobbing machine, it is characterized in that, described cutter spindle B, work spindle C, feed shaft X and walk cutter shaft Z and all adopt direct-drive type zero driven Design; Described cutter spindle B adopts hollow driven by servomotor, and it is upper that described hollow servomotor is directly sleeved on cutter spindle B, and main shaft tail is coaxially installed a position coder feedback main spindle's; Described work spindle C adopts hollow driven by servomotor, and it is upper that described servomotor is directly sleeved on work spindle C, and main shaft tail is coaxially installed a position coder feedback main spindle's.

3. one according to claim 1 and 2 is directly driven zero transmission Full-numerical-control horizontal hobbing machine, it is characterized in that, described feed shaft directions X is provided with grating scale and detects feed shaft X feed box physical location; The described physical location of walking cutter shaft Z direction and be provided with grating scale and detect away cutter shaft Z planker seat.

4. one according to claim 1 is directly driven zero transmission Full-numerical-control horizontal hobbing machine bed, it is characterized in that, described nose angle regulating shaft A is provided with high precision position encoder, be used for controlling cutting-tool angle and adjust positional information, the described cutter shaft Y that alters is provided with upper-lower position control grating scale, accurately controls upper and lower tool displacement distance.

5. one according to claim 1 is directly driven zero transmission Full-numerical-control horizontal hobbing machine, it is characterized in that, described lathe body front is provided with laser tool setting device, realizes the processing that repeats of the secondary operations of workpiece and identical workpiece.

6. one according to claim 1 is directly driven zero transmission Full-numerical-control horizontal hobbing machine, it is characterized in that, described digital control system is passed through linear encoder or grating scale real time detection signal, and forms full-closed loop type control loop.

7. one according to claim 1 is directly driven zero transmission Full-numerical-control horizontal hobbing machine, it is characterized in that, described digital control system is zero programming operation, there is parameterized operation interface, can be according to workpiece situation input cutter parameters, workpiece parameter, technological parameter and feeding number of times, without any need for programming instruction.