CN201868023U - Numerical-controlled gear hobbing machine - Google Patents
Numerical-controlled gear hobbing machine Download PDFInfo
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- CN201868023U CN201868023U CN2010206466252U CN201020646625U CN201868023U CN 201868023 U CN201868023 U CN 201868023U CN 2010206466252 U CN2010206466252 U CN 2010206466252U CN 201020646625 U CN201020646625 U CN 201020646625U CN 201868023 U CN201868023 U CN 201868023U
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- gear hobbing
- digital control
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Abstract
The utility model provides a numerical-controlled gear hobbing machine, which comprises a host machine and a numerical control system. The host machine consists of a base, an upright post, an axial feeding component, a hobbing cutter component, a radial feeding component and a circumferential feeding component, the upright post is arranged at one end of the base, the axial feeding component is disposed on the upright post, the hobbing cutter component is controlled by the axial feeding component to axially move and process workpieces, the radial feeding component is arranged on the base, and the circumferential feeding component is controlled by the radial feeding component to radially move and used for holding the workpieces. The numerical-controlled gear hobbing machine can be used for starting a practical teaching link for the subject of the Numerical Control Technology, and can be used for displaying teaching content such as composition of a numerical control device, a development procedure of the numerical control device, design of mechanical structure of the numerical control device, a numerical control system hardware structure, a numerical control system software structure, C language development practice, hobbing processing experiment and the like. The numerical-controlled gear hobbing machine combines current advanced technology of hobbing processing with economical property of teaching equipment, meets the requirement of experimental teaching of hobbing processing, and also can greatly reduce teaching cost.
Description
Technical field
The utility model relates to a kind of teaching chain digital control gear hobbing machine.
Background technology
The numerical control device that commercial production is used not only costs an arm and a leg, and because of technical know-how, is difficult to show to the student details such as numerical control device performance history.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of simple in structure, with low cost and be suitable for showing the chain digital control gear hobbing machine that the software and hardware of numerical control device is formed.
For solving the problems of the technologies described above, the utility model provides a kind of chain digital control gear hobbing machine, comprising: main frame and digital control system; Described main frame comprises: base, be located at base one end column, be located at axial feed assembly on this column, under the control of this axial feed assembly axially the hobboing cutter assembly of displacement and processing work, be located at the radial feed assembly on the base, the rotary feed assembly that is used for place work piece of radial displacement under the control of this radial feed assembly; Described axial feed assembly comprises the axial feed motor, and the radial feed assembly comprises the radial feed motor, and the hobboing cutter assembly comprises the hobboing cutter motor that is used to drive cutter shaft, and the rotary feed assembly comprises the rotary feed motor; Described digital control system comprises: CPU, the system bus that links to each other with CPU, the light-coupled isolation I/O circuit that links to each other with system bus, the axial feed motor driver, radial feed motor driver, rotary feed motor driver and the PLC that link to each other with light-coupled isolation I/O circuit, this PLC links to each other with the hobboing cutter motor driver; Described cutter shaft is provided with the cutter shaft scrambler, and this cutter shaft scrambler links to each other with described system bus by the encoder to count card.
All motors all adopt stepper motor, and wherein cutter shaft is controlled its startup, stopped, deciding rotary speed movement by PLC.Photoelectric encoder is installed on the cutter shaft, gear hobbing adds the man-hour digital control system and controls the workpiece spindle rotational angle again after detecting the cutter shaft corner earlier, promptly by detect the umber of pulse that the cutter shaft scrambler sends in the sampling period, calculate the umber of pulse that send to the workpiece spindle driver again.
Further, the control end of described CPU is connected with the numerical control keyboard, and the control end of described light-coupled isolation I/O circuit is connected with control panel.
Further, described axial feed assembly also comprises: be located at axial ball-screw bearing seat on the column front end face, vertically be located at screw mandrel in this axial ball-screw bearing seat, be located at column the place ahead and in a pair of cylindrical guide of screw mandrel both sides, be located at the axial scrambler and the synchronous pulley that links to each other with described axial feed drive of motor on screw mandrel top; The mounting seat of described hobboing cutter assembly is located on described screw mandrel and the cylindrical guide.
Further, be provided with counterweight in the described column, this counterweight links to each other with the mounting seat of described hobboing cutter assembly by the angle sheave of wire rope through being located at the column top.This balancing weight is lifted on the axial slide unit through wire rope pulley by two wire rope, balances the weight of the hobboing cutter assembly of 70-80%, and is main in order to alleviate the axial force of axial feed leading screw.Make axial feed slide unit flexible operation.
Further, described radial feed assembly also comprises: be located at a pair of radial guidance on the base and be located at this to the ball-screw gear train between the radial guidance, the end of the ball-screw in the ball-screw gear train is provided with radially scrambler; Described ball-screw is connected with described radial feed drive of motor.
Further, described hobboing cutter assembly also comprises: by a plurality of set bolts be located at rotating disk on the described mounting seat, the bearing seat that is used to be provided with described cutter shaft on the rotating disk, be located at described cutter shaft end the cutter shaft scrambler, be located at the corner scale direction board on the described mounting seat; Described hobboing cutter motor and cutter shaft are in transmission connection by synchronous band.
Further, described rotary feed assembly also comprises: be located on the described a pair of radial guidance and the installation base plate that links to each other with described ball-screw gear train, the rotary feed scrambler, the bearing that link to each other with the output shaft of described rotary feed motor on being located at this installation base plate are connected the staged workpiece spindle of installing on the base plate and being in transmission connection by synchronous band with the rotary feed motor, the workpiece clamping mechanism of being located at the workpiece spindle top.
The utlity model has positive effect: (1) chain digital control gear hobbing machine of the present utility model can be " Numeric Control Technology " course and carries out the practical teaching link, can be used for showing the contents of courses such as numerical control device composition, numerical control device performance history, numerical control device Design of Mechanical Structure, CNC system hardware structure, cnc system software structure, C language development are put into practice, gear hobbing machining experiment.This equipment combines the advanced technology of current gear hobbing processing with the economy of teaching equipment, when satisfying the teaching of gear hobbing machining experiment, can reduce instruction cost greatly.In the chain digital control gear hobbing machine of the present utility model, the cutter shaft inclination angle adjusting structure is simple, convenient, practical.(2) transmission feeding mechanism adopts numerical control control, has high sensitivity, good guiding accuracy, and is economical and practical.Based on the digital control system in open type of Industrial PC Computer, the hardware using modular construction, large-screen lc shows that function software friendly interface, system maintenance and function expansion are convenient.It is lower that equipment set is produced cost in batches.This complete equipment is used example as teaching, can significantly improve student's learning interest and results of learning.(3) the complete machine lathe bed is designed to column and base Bolt Connection, is convenient to process and installation, and column and base are the closed frame welded structure, guarantee to have enough rigidity, the good and saving material of manufacturability.Cutter shaft adopts double supporting structure, supports with paired high precision angular contact ball bearing, good rigidly, can eliminate the gap, has satisfied hobbing machine to the high rigidity of hobboing cutter, the demanding requirement of axial location tool setting.Axially reach depth-feed mechanism and adopt the high precision precise ball screw pair, leading screw supports with paired high precision angular contact ball bearing, sensitivity, no gap, good rigidly.Axially reach the radial feed slide unit and adopt high-precision cylinder line slideway and linear bearing, enough kinematic accuracies and good guiding accuracy are arranged, economic and practical.Leading screw is adopted band transmission synchronously to make one-level and is slowed down by step motor drive, realizes that reduction of speed increases torque.
Description of drawings
Fig. 1 is the structural representation of chain digital control gear hobbing machine of the present utility model.
Fig. 2 is that the A of the chain digital control gear hobbing machine among Fig. 1 is to view.
Fig. 3 is the vertical view of the chain digital control gear hobbing machine among Fig. 1.
Fig. 4 is the structural representation of the digital control system in the chain digital control gear hobbing machine of the present utility model.
Embodiment
See Fig. 1-Fig. 4, the chain digital control gear hobbing machine of present embodiment comprises: main frame and digital control system; Described main frame comprises: base 5, be located at base 5 one ends column 1, be located at axial feed assembly 2 on this column 1, under the control of this axial feed assembly 2 axially the hobboing cutter assembly 3 of displacement and processing work 11, be located at the radial feed assembly 6 on the base 5, the rotary feed assembly 4 that is used for place work piece 11 of radial displacement under the control of this radial feed assembly 6; Described axial feed assembly 2 comprises axial feed motor 21, and radial feed assembly 6 comprises radial feed motor 61, and hobboing cutter assembly 3 comprises the hobboing cutter motor 31 that is used to drive cutter shaft 33, and rotary feed assembly 4 comprises rotary feed motor 41; Described digital control system comprises: CPU, the system bus that links to each other with CPU, the light-coupled isolation I/O circuit that links to each other with system bus, the axial feed motor driver, radial feed motor driver, rotary feed motor driver and the PLC that link to each other with light-coupled isolation I/O circuit, this PLC links to each other with the hobboing cutter motor driver; Described cutter shaft 33 is provided with the cutter shaft scrambler, and this cutter shaft scrambler links to each other with described system bus by the encoder to count card.Light-coupled isolation I/O circuit is the signal input and output electric current of light-coupled isolation.
The control end of described CPU is connected with the numerical control keyboard, and the control end of described light-coupled isolation I/O circuit is connected with control panel.
Described axial feed assembly 2 also comprises: be located at the axial ball-screw bearing seat 28 on column 1 front end face, the vertical screw mandrel 26(that is located in this axial ball-screw bearing seat 28 is an X-axis), be located at column 1 the place ahead and in a pair of cylindrical guide 25 of screw mandrel 26 both sides, be located at the axial scrambler 22 and the synchronous pulley 27 that links to each other with described axial feed motor 21 transmissions on screw mandrel 26 tops; The mounting seat 30 of described hobboing cutter assembly 3 is located on described screw mandrel 26 and the cylindrical guide 25.
Be provided with counterweight 24 in the described column 1, this counterweight 24 links to each other with the mounting seat 30 of described hobboing cutter assembly 3 by the angle sheave of wire rope 23 through being located at column 1 top.
Described radial feed assembly 6 also comprises: be located at a pair of radial guidance 62 on the base 5 and be located at this to the ball-screw gear train 63 between the radial guidance 62, the end of the ball-screw in the ball-screw gear train 63 (being the Z axle) is provided with radially scrambler 64.
Described hobboing cutter assembly 3 also comprises: by a plurality of set bolts be located at rotating disk 32 on the described mounting seat 30, the bearing seat 36 that is used to be provided with described cutter shaft 33 on the rotating disk 32, be located at described cutter shaft 33 ends cutter shaft scrambler 35, be located at the corner scale direction board 34 on the described mounting seat 30; Described hobboing cutter motor 31 is in transmission connection by synchronous band with cutter shaft 33.
Described rotary feed assembly 4 also comprises: be located on the described a pair of radial guidance 62 and the installation base plate 40 that links to each other with described ball-screw gear train 63, the rotary feed scrambler 45, the bearing that link to each other with the output shaft of described rotary feed motor 41 on being located at this installation base plate 40 are connected the staged workpiece spindle 43 of installing on the base plate 40 and being in transmission connection by synchronous band with rotary feed motor 41, the workpiece clamping mechanism 47 of being located at workpiece spindle 43 tops.
The supporting system of main frame is the section material framework welded structure, and compact conformation, rigidity height, manufacturability are good.The cutter shaft of double base, axial location string cutter is accurately convenient.The cutter shaft inclination angle adjusting structure is simple, convenient, practical.Axially and depth-feed mechanism adopt: stepper motor, band, ball screw assembly, and cylinder line slideway synchronously, have high sensitivity, good guiding accuracy, economical and practical.The numerical control device all functions concentrate in the accurate PC-610 industry of the station symbol cabinet, and digital quantity input-output card, scrambler capture card are installed in the motherboard slot, install on the case front panel: handwheel, numeric keypad, crawl button, scram button; Various control signal connectors are installed on the upper cover plate outside surface, and inside surface is installed connection terminal.Adopt electric board, installation PLC in common hard disk position is being installed.Cnc system software design, cnc system software are based on the DOS platform, with C language development tension management software, with the multi-shaft interlocked real-time control software of compilation exploitation.
In order to reduce manufacturing cost, all motors all adopt stepper motor, and wherein cutter shaft is controlled its startup, stopped, deciding rotary speed movement by PLC.Photoelectric encoder is installed on the cutter shaft, gear hobbing adds the man-hour digital control system and controls the workpiece spindle rotational angle again after detecting the cutter shaft corner earlier, promptly by detect the umber of pulse that the cutter shaft scrambler sends in the sampling period, calculate the umber of pulse that send to the workpiece spindle driver again.Z, X-axis are installed photoelectric encoder, are used for the accurate location at zero point.
Realize transmission with being with synchronously between stepper motor and workpiece spindle.Band transmission synchronously has gear-driven accurate ratio of gear based on it, and the dirigibility of band transmission centre distance is arranged again.According to synchronously with the moment of torsion of required transmission, select that the arc toothed band of HTD-HTD-475-5M-20(pitch length is that 475 ㎜, the number of teeth are 95, model is 5M, bandwidth 20 ㎜).The band driving pulley is 20-5M-25F synchronously, and passive belt wheel is 72-5M-25F.The driving pulley number of teeth is Z
Main=20, the passive belt tooth number is Z
Quilt=72, realize the reduction of speed transmission of ratio of gear i=72/20=3.6.
Stepper motor 90BYG350C can reach 10000 pulse motors through sub-circuit control and go around.And the indexing accuracy of workpiece spindle is 0.01 °/pulse.The required umber of pulse of promptly going around is: N=360 °/0.01 °=36000=4 * 2500 * 3.6, promptly under band transmission (ratio of gear i=3.6) synchronously, realized that motor changes four commentaries on classics, and workpiece spindle is goed around.Workpiece spindle adopts conventional multidiameter, with bearing 7106GB297-84(Ф 30 * Ф 55 * 17) the realization double base.Top processes the location with axle and external thread M16, location and clamping during as Gear Processing.Bearing 7106GB297-84 can radially reach axial gap by what reconditioning end cap pad was eliminated axle, to improve the kinematic accuracy and the dynamic and static rigidity of axle.
The radial feed slide unit mainly by feeding transmission (being the ball-screw gear train) and radially the slide unit support rails form.The guide rail of radial feed slide unit adopts linear bearing and linear cylindrical guide rail 15.Linear bearing become to slide to rolling, and friction is reduced greatly, has improved the sensitivity of guide rail, has avoided creeping, and has improved guide rail serviceable life.
Balancing weight is lifted on the axial slide unit through wire rope pulley by two wire rope, balances the weight of the slide unit of 70-80% and rotary disk etc., and is main in order to alleviate the axial force of axial feed leading screw.Make axial feed slide unit flexible operation.
The hobboing cutter pendulum angle is realized by a manual adjusting mechanism.When adjusting the angle of cutter shaft and workpiece spindle, unclamp 3 rotating disk set bolts 5 earlier, manually rotating disk 2 is turned over a required angle, institute's gyration is by 3 indications of corner scale direction board.And then tighten 3 set bolts 5.
The chain digital control gear hobbing machine of present embodiment at first enters the lathe adjusting module and carries out the return reference point operation after start, return reference point is meant that moving-member falls back on a changeless limit point in the lathe coordinate system, thereby sets up lathe coordinate system.The return reference point operation is passed through near the switch coarse positioning, then by scrambler zero pulse fine positioning.Lathe moves to the lathe reference point with setting speed during return reference point, when the inductive head that covers near the switch block near switch, lathe slows down and enters the low-speed motion stage, this moment, digital control system was constantly inquired about scrambler zero pulse signal, after reading the zero pulse signal, lathe is stop motion at once, and leading screw (scrambler) accurately is parked in circumferencial direction fixed position-scrambler zero-bit, and this moment, lathe accurately was parked in the lathe reference point.
The chain digital control gear hobbing machine of present embodiment has the crawl function: pinning each crawl key of digital control system guidance panel can arbitrarily move Z, X, workpiece spindle, is stop motion when unclamping the crawl key.
The chain digital control gear hobbing machine of present embodiment has the handwheel function: realize each is finely tuned by handwheel, enter the lathe adjusting module after, select certain handwheel function after, select the handwheel multiplying power again.Rotate handwheel then, cnc system software whenever detect handwheel send a pulse promptly to correspondence the axle driver send the individual pulse of n (n=1 * handwheel multiplying power).
Before the gear hobbing processing, be introduced into parameter input module, establish gear parameter (number of teeth, modulus, the facewidth), processing speed of feed.The gear hobbing processing module, at first radially feed, at axial feed, the reprocessing beginning, PLC drives the cutter shaft rotation, and workpiece is followed main axis rotation, and the Z axle is by setting the process velocity feeding.
Obviously, the foregoing description of the present utility model only is for the utility model example clearly is described, and is not to be qualification to embodiment of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all embodiments.And these belong to conspicuous variation or the change that spirit of the present utility model extended out and still are among the protection domain of the present utility model.
Claims (7)
1. a chain digital control gear hobbing machine is characterized in that comprising: main frame and digital control system;
Described main frame comprises: base, be located at base one end column, be located at axial feed assembly on this column, under the control of this axial feed assembly axially the hobboing cutter assembly of displacement and processing work, be located at the radial feed assembly on the base, the rotary feed assembly that is used for place work piece of radial displacement under the control of this radial feed assembly;
Described axial feed assembly comprises the axial feed motor, and the radial feed assembly comprises the radial feed motor, and the hobboing cutter assembly comprises the hobboing cutter motor that is used to drive cutter shaft, and the rotary feed assembly comprises the rotary feed motor;
Described digital control system comprises: CPU, the system bus that links to each other with CPU, the light-coupled isolation I/O circuit that links to each other with system bus, the axial feed motor driver, radial feed motor driver, rotary feed motor driver and the PLC that link to each other with light-coupled isolation I/O circuit, this PLC links to each other with the hobboing cutter motor driver;
Described cutter shaft is provided with the cutter shaft scrambler, and this cutter shaft scrambler links to each other with described system bus by the encoder to count card.
2. a kind of chain digital control gear hobbing machine according to claim 1 is characterized in that: the control end of described CPU is connected with the numerical control keyboard, and the control end of described light-coupled isolation I/O circuit is connected with control panel.
3. a kind of chain digital control gear hobbing machine according to claim 2 is characterized in that: described axial feed assembly also comprises: be located at axial ball-screw bearing seat on the column front end face, vertically be located at screw mandrel in this axial ball-screw bearing seat, be located at column the place ahead and in a pair of cylindrical guide of screw mandrel both sides, be located at the axial scrambler and the synchronous pulley that links to each other with described axial feed drive of motor on screw mandrel top;
The mounting seat of described hobboing cutter assembly is located on described screw mandrel and the cylindrical guide.
4. a kind of chain digital control gear hobbing machine according to claim 3 is characterized in that: be provided with counterweight in the described column, this counterweight links to each other with the mounting seat of described hobboing cutter assembly by the angle sheave of wire rope through being located at the column top.
5. a kind of chain digital control gear hobbing machine according to claim 2, it is characterized in that: described radial feed assembly also comprises: be located at a pair of radial guidance on the base and be located at this to the ball-screw gear train between the radial guidance, the end of the ball-screw in the ball-screw gear train is provided with radially scrambler; Described ball-screw is connected with described radial feed drive of motor.
6. a kind of chain digital control gear hobbing machine according to claim 2 is characterized in that: described hobboing cutter assembly also comprises: by a plurality of set bolts be located at rotating disk on the described mounting seat, the bearing seat that is used to be provided with described cutter shaft on the rotating disk, be located at described cutter shaft end the cutter shaft scrambler, be located at the corner scale direction board on the described mounting seat; Described hobboing cutter motor and cutter shaft are in transmission connection by synchronous band.
7. a kind of chain digital control gear hobbing machine according to claim 2 is characterized in that: described rotary feed assembly also comprises: be located on the described a pair of radial guidance and the installation base plate that links to each other with described ball-screw gear train, the rotary feed scrambler, the bearing that link to each other with the output shaft of described rotary feed motor on being located at this installation base plate are connected the staged workpiece spindle of installing on the base plate and being in transmission connection by synchronous band with the rotary feed motor, the workpiece clamping mechanism of being located at the workpiece spindle top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206466252U CN201868023U (en) | 2010-12-07 | 2010-12-07 | Numerical-controlled gear hobbing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206466252U CN201868023U (en) | 2010-12-07 | 2010-12-07 | Numerical-controlled gear hobbing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201868023U true CN201868023U (en) | 2011-06-15 |
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ID=44139173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206466252U Expired - Fee Related CN201868023U (en) | 2010-12-07 | 2010-12-07 | Numerical-controlled gear hobbing machine |
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| Country | Link |
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| CN (1) | CN201868023U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106403870A (en) * | 2016-11-15 | 2017-02-15 | 张斌 | Return-to-zero positioning system and method |
| CN111761448A (en) * | 2020-06-28 | 2020-10-13 | 浙江三欢齿轮有限公司 | Gear hobbing machine |
-
2010
- 2010-12-07 CN CN2010206466252U patent/CN201868023U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106403870A (en) * | 2016-11-15 | 2017-02-15 | 张斌 | Return-to-zero positioning system and method |
| CN111761448A (en) * | 2020-06-28 | 2020-10-13 | 浙江三欢齿轮有限公司 | Gear hobbing machine |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110615 Termination date: 20131207 |