CN201217108Y - Zero-drive numerical control hobbing machine - Google Patents
Zero-drive numerical control hobbing machine Download PDFInfo
- Publication number
- CN201217108Y CN201217108Y CNU2008200986538U CN200820098653U CN201217108Y CN 201217108 Y CN201217108 Y CN 201217108Y CN U2008200986538 U CNU2008200986538 U CN U2008200986538U CN 200820098653 U CN200820098653 U CN 200820098653U CN 201217108 Y CN201217108 Y CN 201217108Y
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- hobbing machine
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- functional part
- hobboing cutter
- gear hobbing
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Abstract
The utility model discloses a zero-transmission numerical control hobbing machine, comprising a lathe bed, a principal shaft system, and hob feeding and hob angle adjusting and control systems. The principal shaft system comprises a hob principal shaft functional part and a workpiece principal shaft functional part. The hob principal shaft functional part is characterized in that a rotor of a servo motor I is integrated with a hob principal shaft, and the workpiece principal shaft functional part is characterized in that a rotor of a servo motor II is integrated with a workpiece principal shaft. The hobbing machine can eliminate the influences on gear machining from manufacturing error of a generating motion transmission element and clearance and assembling errors, thus greatly improving machining precision and machining speed of the machine tool. The hobbing machine is simple in structure, and can improve the overall rigidity of the machine tool and solve the problem of abrasion of a mechanical transmission chain. The hobbing machine improves precision retentivity, enables the gear hobbing speed to be bigger than that of a conventional numerical control hobbing machine by a large margin, and shortens cutting time. On above basis, adopting a series of matching technical measures, the machine tool has the conditions for dry gear hobbing.
Description
Technical field
The utility model relates to a kind of gear-hobbing machine, particularly a kind of Zero-drive chain digital control gear hobbing machine.
Background technology
Gear is most important mechanical transmission component, is widely used in all kinds of machineries, and gear hobbing then is a kind of important means in the Gear Processing.Along with science and technology development, modern machine has been proposed more and more higher requirement, mainly be presented as efficient, high accuracy and environmental protection processing.The general NC gear-hobbing machine is difficult to reach above-mentioned requirements owing to its principle and structural limitations.Gear hobbing processing is to add work gear with hobboing cutter on gear-hobbing machine; The gear hobbing process principle is that hobboing cutter and tooth mold are intended a pair of helical tooth crop rotation gear motion.Gear-hobbing machine add work gear have because continuous rotary cutting made by hobboing cutter cutting speed higher, can process advantages such as straight-tooth, helical gears and worm gear.Gear-hobbing machine is one of the most complicated lathe of drive connection, although the gear-hobbing machine of prior art shortens dramatically driving-chain by Numeric Control Technology, but in the gear hobbing generating motion, still kept the part mechanical drive train, these machine driving links not only influence machining accuracy, also influence the retentivity of machine tool accuracy; More crucial is that the mechanical drive train of reservation has become the bottleneck that improves gear hobbing speed, has limited the more dry type gear hobbing implementation of processes of environmental protection, because be one of essential condition of dry type gear hobbing at a high speed.
Therefore, need a kind of gear-hobbing machine, the machine driving link that restriction gear hobbing precision and speed improve in the cancellation general NC gear-hobbing machine, can realize the zero transmission of motor and hobboing cutter main shaft and motor and workbench, eliminate the influence of the foozle of actuated element wherein and gap and rigging error for Gear Processing, can improve the machining accuracy and the process velocity of lathe, and improve the precision stability of lathe, provide necessary essential condition for the dry type gear hobbing simultaneously.
The utility model content
In view of this, the purpose of this utility model provides a kind of Zero-drive chain digital control gear hobbing machine, transmission mechanism by generating motion parts in the cancellation general NC gear-hobbing machine, realized the zero transmission of motor and hobboing cutter main shaft and motor and workbench, eliminated the influence of the foozle of actuated element in the gear hobbing generating motion and gap and rigging error for Gear Processing, it not only can increase substantially the machining accuracy and the process velocity of lathe, simultaneously, because its frame for movement is simple, the rigidity that when design, more helps improving lathe, solve the wear problem that exists in the mechanical drive train fully, and then improved the precision stability of lathe.Simultaneously, opening of gear hobbing speed bottle-neck is aided with other technological means, makes lathe possess the lathe condition of dry type gear hobbing.
Zero-drive chain digital control gear hobbing machine of the present utility model comprises lathe bed, axis system, hobboing cutter feeding and hobboing cutter angle Adjustment System and control system; Described axis system comprises hobboing cutter main shaft functional part and work spindle functional part, rotor and hobboing cutter main shaft that described hobboing cutter main shaft functional part is servomotor I become one, and the work spindle functional part is that rotor and the work spindle of servomotor II becomes one.
Further, described hobboing cutter feeding and hobboing cutter angle Adjustment System comprise radial feeding device, axial feed device, tangentially go here and there knife system and hobboing cutter installation angle adjusting device, and described radial feeding device adopts servomotor III to drive the structure of radial feed ball-screw by synchronous cog belt I; The axial feed device adopts the structure of servomotor IV by synchronous cog belt II driving axial feeding ball-screw; Tangential string knife system adopts servomotor V to drive the structure of string cutter rectilinear motion ball-screw by decelerator; The hobboing cutter angular adjustment apparatus adopts servomotor VI to drive the structure of worm and gear;
Further, described work spindle end connection workpiece plug, workpiece plug end is provided with relative holding device;
Further, the corresponding chip removal mouth that is provided with workpiece on the described lathe bed, described work spindle functional part scribbles heat insulating coat near an end and the chip removal mouth surface of workpiece;
Further, cooling air unit is set the workpiece side or/and cleaning vacuum plant is provided with the mobile groove of recirculated water on the lathe bed;
Further, described chip removal mouth inlet is of a size of the maximum sized 2-4 of processing work doubly;
Further, gear-hobbing machine is horizontal layout structure;
Further, described chip removal mouth lower end is provided with continuous chip removal device;
Further, described continuous chip removal device adopts conveyer belt structure;
Further, described control system is the CNC control system; Hobboing cutter main shaft functional part, work spindle functional part, axial feed device, tangentially going here and there knife system is provided with the photoelectric encoder that links to each other with control system with the hobboing cutter installation angle adjusting device, and radial feeding device is provided with the linear grating that links to each other with control system.
The beneficial effects of the utility model are mainly reflected in following 2 aspects:
1) precision and efficient: Zero-drive chain digital control gear hobbing machine of the present utility model, transmission mechanism by generating motion parts in the cancellation general NC gear-hobbing machine, with hobboing cutter main shaft and table design is the functional part of zero type of belt drive, eliminated the mechanical drive train in the gear-hobbing machine generating motion, avoided the influence of the foozle of mechanical transmission component in the generating motion and gap and rigging error for Gear Processing, it not only can increase substantially the machining accuracy and the process velocity of lathe, simultaneously, because its frame for movement is simple, the rigidity that when design, more helps improving lathe, solve the wear problem that exists in the mechanical drive train fully, and then improved the precision stability of lathe.Adopt zero transmission agency parts, broken through the speed bottle-neck of gear hobbing processing, make gear hobbing speed shorten the cutting time widely greater than the chain digital control gear hobbing machine of traditional structure; Axial, the radial feed of workbench moves and the string cutter all is to realize by servomotor and ball-screw, make feed system have higher transmission accuracy and positioning accuracy, also has good fast-response, avoid creeping, can also guarantee the stability of workbench low-speed motion, thus make working table movement evenly, steadily, friction, reach the interlock precision of high position precision and high duplication precision and two main shafts.Being connected of servomotor and ball-screw adopts synchronous cog belt to realize having functions such as buffering, absorbing, is beneficial to the raising machining accuracy.
2) the dried adaptability of cutting: can adapt to the dry type gear hobbing requirement of environmental protection, become the important symbol of modern advanced gear-hobbing machine, reasonable processing to heat in metal cutting is the most important requirement of dry type gear hobbing, zero transmission has broken through the speed bottle-neck of gear hobbing processing, and the gear hobbing speed that improves extremely helps reducing the chip deformation heating; Adopt big chip removal mouth, brush heat insulating coat, can make the smear metal heat not pass to process system as far as possible, reduced the thermal deformation of process system with reducing heat conducting mode at the part surface of work spindle parts and on lathe bed chip removal mouth surface; Cutting fluid system is changed the outfit to cooling air unit or/and cleaning vacuum plant can reduce cutting temperature or siphon away the dried dust of cutting; The horizontal machine tool layout falls fervent bits and few contact workpiece main shaft to greatest extent naturally; The chip removal mouth inlet is of a size of the maximum sized 2-4 of processing work doubly, adopt big chip removal mouth structure, chip removal is smooth and easy, eliminates the deformation effect of earnestly considering to be worth doing work spindle or lathe bed, can reduce the thermal deformation of process system so that the smear metal heat does not pass to process system; In the chip removal mouth lower end continuous chip removal device is set, has reduced the time of staying of fervent bits in machine; Lathe bed is provided with recirculated water and flows groove to keep lathe bed thermal balance.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described.
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the utility model chip removal mouth and work spindle structural representation.
The specific embodiment
Fig. 1 is a structural representation of the present utility model, Fig. 2 is the utility model chip removal mouth and work spindle structural representation, as shown in the figure: the Zero-drive chain digital control gear hobbing machine of present embodiment adopts horizontal layout, comprises lathe bed 1, axis system, hobboing cutter feed system, hobboing cutter installation angle adjusting device and CNC control system 18;
Axis system comprises hobboing cutter main shaft functional part 12 and work spindle functional part 19, described hobboing cutter main shaft functional part 12 becomes one for rotor and the hobboing cutter main shaft of servomotor I 12a, work spindle functional part 19 is realized zero transmission for rotor and the work spindle of servomotor II 19a becomes one; Described work spindle functional part 19 end connection workpiece plugs 17, workpiece plug 17 ends are provided with relative holding device 14;
The hobboing cutter feed system comprises radial feeding device, axial feed device and the knife system of tangentially going here and there, radial feeding device adopts servomotor III26 to drive radial feed ball-screw 29 by synchronous cog belt I 27 and drives radially slide plate 30, finishes the radial feed motion thereby drive hobboing cutter 15; The axial feed device adopts servomotor IV22 to drive axial slide plate 34 by synchronous cog belt II23 driving axial feeding ball-screw 24, finishes axial feed motion thereby drive hobboing cutter 15; The slide rail of described radially slide plate 30 is arranged on the axial slide plate 34; Tangential string knife system adopts servomotor V7 to drive hob head rotating disk 10 by decelerator 8 driving string cutter rectilinear motion ball-screws 9 and finishes hobboing cutter 15 string cutter motions;
The hobboing cutter angular adjustment apparatus adopts servomotor VI 3 to drive worm and gear 5 and finishes hobboing cutter 15 established angle adjustment campaigns;
Described hobboing cutter main shaft functional part 12, work spindle functional part 19, radial feeding device, the axial feed device, tangential string knife system and hobboing cutter installation angle adjusting device are provided with the position probing feedback device respectively, described feedback signal numerical value is input control system 18 respectively, the command signal output of described control system 18 respectively with servomotor I 12, servomotor II 19, servomotor III26, servomotor IV22, servomotor V7 and servomotor VI3 link, and the interlock of each moving component is realized by " electronic gearbox " function in the described control system 18;
In the described position probing feedback device, radial feed position signal acquisition device is a linear grating 28, other position signal acquisition device is a photoelectric encoder, is respectively photoelectric encoder I 11, photoelectric encoder II 20, photoelectric encoder IV25, photoelectric encoder V6 and photoelectric encoder VI 2.
On the lathe bed 1 with the workpiece 16 corresponding chip removal mouths 31 that are provided with, work spindle functional part 19 scribbles heat insulating coat 32 near an end and chip removal mouth 31 surfaces of workpiece 16, chip removal mouth 31 inlets are of a size of maximum sized 4 times of processing work, greater than the workpiece smear metal scope of splashing, avoid earnestly bits to the influence of machining accuracy; Workpiece 16 sides are provided with cooling air unit 21 and cleaning vacuum plant 35, recirculated water is set on the lathe bed 1 flows groove 4 to keep lathe bed thermal balance.
Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (10)
1. a Zero-drive chain digital control gear hobbing machine is characterized in that: comprise lathe bed (1), axis system, hobboing cutter feeding and hobboing cutter angle Adjustment System and control system (18);
Described axis system comprises hobboing cutter main shaft functional part (12) and work spindle functional part (19), described hobboing cutter main shaft functional part (12) is for rotor and the hobboing cutter main shaft of servomotor I (12a) becomes one, and work spindle functional part (19) becomes one for rotor and the work spindle of servomotor II (19a).
2. Zero-drive chain digital control gear hobbing machine according to claim 1, it is characterized in that: described hobboing cutter feeding and hobboing cutter angle Adjustment System comprise radial feeding device, axial feed device, tangentially go here and there knife system and hobboing cutter installation angle adjusting device, and described radial feeding device adopts servomotor III (26) to drive the structure of radial feed ball-screw (29) by synchronous cog belt I (27); The axial feed device adopts the structure of servomotor IV (22) by synchronous cog belt II (23) driving axial feeding ball-screw (24); Tangential string knife system adopts servomotor V (7) to drive the structure of string cutter rectilinear motion ball-screw (9) by decelerator (8); The hobboing cutter angular adjustment apparatus adopts servomotor VI (3) to drive the structure of worm and gear (5).
3. Zero-drive chain digital control gear hobbing machine according to claim 2 is characterized in that: described work spindle functional part (19) end connection workpiece plug (17), workpiece plug (17) end is provided with relative holding device (14).
4. Zero-drive chain digital control gear hobbing machine according to claim 3, it is characterized in that: described lathe bed (1) is gone up the corresponding chip removal mouth (31) that is provided with workpiece (16), and described work spindle functional part (19) scribbles heat insulating coat (32) near an end and chip removal mouth (31) surface of workpiece (16).
5. Zero-drive chain digital control gear hobbing machine according to claim 4 is characterized in that: cooling air unit (21) is set the workpiece side or/and cleaning vacuum plant (35) is provided with the mobile groove (4) of recirculated water on the lathe bed (1).
6. Zero-drive chain digital control gear hobbing machine according to claim 5 is characterized in that: described chip removal mouth (31) inlet is of a size of the maximum sized 2-4 of processing work doubly.
7. Zero-drive chain digital control gear hobbing machine according to claim 6 is characterized in that: gear-hobbing machine is horizontal layout structure.
8. Zero-drive chain digital control gear hobbing machine according to claim 7 is characterized in that: described chip removal mouth (31) lower end is provided with continuous chip removal device (33).
9. Zero-drive chain digital control gear hobbing machine according to claim 8 is characterized in that: described continuous chip removal device (33) adopts conveyer belt structure.
10. Zero-drive chain digital control gear hobbing machine according to claim 9 is characterized in that: described control system (18) is the CNC control system; Hobboing cutter main shaft functional part (12), work spindle functional part (19), axial feed device, tangentially going here and there knife system is provided with the photoelectric encoder that links to each other with control system (18) with the hobboing cutter installation angle adjusting device, and radial feeding device is provided with the linear grating (28) that links to each other with control system (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200986538U CN201217108Y (en) | 2008-06-24 | 2008-06-24 | Zero-drive numerical control hobbing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200986538U CN201217108Y (en) | 2008-06-24 | 2008-06-24 | Zero-drive numerical control hobbing machine |
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| Publication Number | Publication Date |
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| CN201217108Y true CN201217108Y (en) | 2009-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008200986538U Expired - Fee Related CN201217108Y (en) | 2008-06-24 | 2008-06-24 | Zero-drive numerical control hobbing machine |
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| CN (1) | CN201217108Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102784972A (en) * | 2012-08-15 | 2012-11-21 | 江苏沙龙机电科技有限公司 | High-precision mini-type four-shaft linkage numerical control gear-hobbing machine |
| CN104070242A (en) * | 2014-06-23 | 2014-10-01 | 西安交通大学 | Gantry dual-hob symmetric computer numerical control (CNC) gear hobbing machine |
| CN104907635A (en) * | 2014-03-11 | 2015-09-16 | 张家港乙腾机械有限公司 | Direct-drive zero-transmission completely numerical control horizontal gear hobbing machine |
| CN105234499A (en) * | 2015-11-16 | 2016-01-13 | 重庆豪斯特汽车零部件有限公司 | Gear hobbing machine for headrest rod of car seat |
-
2008
- 2008-06-24 CN CNU2008200986538U patent/CN201217108Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102784972A (en) * | 2012-08-15 | 2012-11-21 | 江苏沙龙机电科技有限公司 | High-precision mini-type four-shaft linkage numerical control gear-hobbing machine |
| CN104907635A (en) * | 2014-03-11 | 2015-09-16 | 张家港乙腾机械有限公司 | Direct-drive zero-transmission completely numerical control horizontal gear hobbing machine |
| CN104070242A (en) * | 2014-06-23 | 2014-10-01 | 西安交通大学 | Gantry dual-hob symmetric computer numerical control (CNC) gear hobbing machine |
| CN104070242B (en) * | 2014-06-23 | 2016-05-25 | 西安交通大学 | A kind of gantry thread hob symmetrical expression chain digital control gear hobbing machine |
| CN105234499A (en) * | 2015-11-16 | 2016-01-13 | 重庆豪斯特汽车零部件有限公司 | Gear hobbing machine for headrest rod of car seat |
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| Date | Code | Title | Description |
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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: 20090408 |