CN203804640U - Driving device for shaft A and shaft C of five-shaft power head of numerical control milling machine - Google Patents
Driving device for shaft A and shaft C of five-shaft power head of numerical control milling machine Download PDFInfo
- Publication number
- CN203804640U CN203804640U CN201420063655.9U CN201420063655U CN203804640U CN 203804640 U CN203804640 U CN 203804640U CN 201420063655 U CN201420063655 U CN 201420063655U CN 203804640 U CN203804640 U CN 203804640U
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- Prior art keywords
- axle
- shaft
- servo motor
- direct
- milling machine
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- 238000003801 milling Methods 0.000 title claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 42
- 239000010959 steel Substances 0.000 claims abstract description 42
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 19
- 229910052802 copper Inorganic materials 0.000 claims description 19
- 239000010949 copper Substances 0.000 claims description 19
- 238000001514 detection method Methods 0.000 claims description 17
- 239000012530 fluid Substances 0.000 claims description 16
- 230000001681 protective effect Effects 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 239000003638 chemical reducing agent Substances 0.000 abstract description 7
- 238000003754 machining Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 13
- 230000005540 biological transmission Effects 0.000 description 7
- 230000006872 improvement Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 239000000446 fuel Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Braking Arrangements (AREA)
Abstract
The utility model belongs to the technical field of the power head devices and in particular relates to a driving device for a shaft A and a shaft C of a five-shaft power head of a numerical control milling machine. The driving device for the shaft A and the shaft C of the five-shaft power head of the numerical control milling machine comprises a first power device for driving the shaft C to rotate and a second power device for driving the shaft A to swing; the first power device comprises a first direct-drive servo motor mounted in a main chassis; the first direct-drive servo motor is connected with a first harmonic reducer; a steel wheel of the first harmonic reducer is connected with the shaft C by virtue of a fastener; the second power device comprises a second direct-drive servo motor mounted in an auxiliary chassis which is hinged to the main chassis; the power output end of the second direct-drive servo motor is connected to a wave generator of a second harmonic reducer; a steel wheel of the second harmonic reducer is connected with the auxiliary chassis by use of a fastener. The driving device has the beneficial effects of small volume of the five-shaft power head, small mounting space, and high machining rotation precision.
Description
Technical field
The utility model belongs to power head device technical field, relates in particular to a kind of five axle unit head A axles for CNC milling machine and the drive unit of C axle.
Background technology
The unit head of five-axle linkage has can process polyhedron or cambered surface, expands tool sharpening scope, reduces clamping times again, thereby reduces the advantage of mismachining tolerance, is therefore widely used in the manufacture fields such as Digit Control Machine Tool.
But the five axle power head structures that use are at present complicated, as shown in Figure 3, wherein by driving mainframe box to rotate after driven by servomotor, C axle 3' in mainframe box by transmission device by transmission of power to the A axle 5' in slave case, slave case is realized A axle 5' throw under the drive of throw device, this power head structure is complicated, inner transmission structures is many, cause unit head volume large, install and take up room manyly, manufacturing cost is high.
In addition, the transmission link of the loop detector of Digit Control Machine Tool is many, has drive gap, easily causes detection error, reduces service precision.
Utility model content
Technical problem to be solved in the utility model is: a kind of five axle unit head A axles for CNC milling machine and the drive unit of C axle are provided, complicated to solve the driving of five axle unit heads and the transmission structures of existing use, cause five axle unit head volumes large, the large technical problem that takes up room is installed.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of five axle unit head A axles for CNC milling machine and the drive unit of C axle, comprise and drive C axle the first power set that rotate and the second power set that drive A shaft displacement, described the first power set comprise the first direct-driven servo motor being arranged in mainframe box, the clutch end of described the first direct-driven servo motor connects the wave producer of first harmonic decelerator, and the steel wheel of described first harmonic decelerator links together by securing member and described C axle; Described the second power set comprise the second direct-driven servo motor being arranged in slave case, described slave case is hinged to be installed on described mainframe box, the clutch end of described the second direct-driven servo motor is connected with the wave producer of second harmonic decelerator, and the steel wheel of described second harmonic decelerator and described slave case link together by securing member.
As further improvement, in described mainframe box, be provided with for eliminating the first checkout gear of drive gap, described the first checkout gear comprises the first adapter sleeve of the centre bore that runs through described first harmonic decelerator, one end of described the first adapter sleeve is fixedly connected with by securing member with the steel wheel of described first harmonic decelerator, the other end is connected with the first grating scale, and described the first grating scale is connected with described the first direct-driven servo motor by control module.
As further improvement, in described mainframe box, be provided with for eliminating the first hydraulic clamp of C dither axis, described the first hydraulic clamp comprises the copper sheathing that is set in described C axle outside, the sheathed steel bushing in outside of described copper sheathing, described steel bushing is fixedly connected with described mainframe box, between one end of described copper sheathing and described steel bushing, by securing member, be fixedly connected with, the other end is connected with the bearing of described C axle by a supporting seat, between described copper sheathing and described steel bushing, form the hydraulic fluid chamber of a sealing, the outer surface of the inwall of described copper sheathing and described C axle offsets, described steel bushing is provided with the oil-feed oil duct being communicated with described hydraulic fluid chamber, described hydraulic fluid chamber is connected with the first hydraulic proportion valve, described the first hydraulic proportion valve is connected with described control module.
As further improvement, in described slave case, be provided with for eliminating the second detection device of drive gap, described second detection device comprises the second adapter sleeve of the centre bore that runs through described second harmonic decelerator, one end of described the second adapter sleeve is fixedly connected with by securing member with the steel wheel of described second harmonic decelerator, the other end is connected with the second grating scale, and described the second grating scale is connected with described the second direct-driven servo motor by control module.
As further improvement, in described slave case, be provided with for eliminating the second hydraulic clamp of A dither axis, described the second hydraulic clamp comprises the brake disc being fixedly connected with described slave case, described brake disc is arranged at the side that described second harmonic decelerator is relative, a be provided with brake block corresponding to described brake disc position, described brake block is connected with the piston of brake oil cylinder, the cylinder body of described brake oil cylinder is fixed on described slave case, described brake oil cylinder connects the second hydraulic proportion valve, and described the second hydraulic proportion valve connects described control module.
As further improvement, the periphery of described the second direct-driven servo motor is provided with a protective cover, and described protective cover is fixedly installed on described slave case.
Adopted after technique scheme, the beneficial effects of the utility model are:
Because adopting direct-driven servo motor and harmonic speed reducer combination, the drive unit of five axle unit heads drives the C axle of five axle unit heads, mainframe box and slave case are hinged, the throw of A axle also directly drives by direct-driven servo motor and harmonic speed reducer combination simultaneously, transmission device and the throw apparatus structure complexity of five axle unit heads of traditional use have been solved, drive disk assembly is many, cause five axle unit head volumes large, install and use the large problem in space, compact conformation, installing space is little, and use occasion scope is wide.
Owing to adopting closed loop detection system to detect the mode of harmonic speed reducer output, then by grating scale, feed back to control module, control module is controlled servomotor action, solved in traditional closed-loop checkout gear the transmission link between grating scale and servomotor many, there is drive gap, cause detection error, the problem that accuracy of detection is low.
Owing to being respectively equipped with in mainframe box and slave case for eliminating the hydraulic clamp of shake, hydraulic clamp adopts the oil-feed of hydraulic proportion valve control brake oil cylinder or hydraulic fluid chamber how many, hydraulic jack is controlled oil-feed in brake block and brake disc action or hydraulic fluid chamber and is made copper sheathing distortion, with this, clamp A axle or hold C axle tightly, eliminate the shake of A axle or C axle, simple in structure, be easy to realize, greatly improved machining accuracy.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the structure principle chart of loop detector in Fig. 1;
Fig. 3 is the structural representation of five axle unit heads of existing use;
In figure, 1, the first direct-driven servo motor, 2, first harmonic decelerator, 20, the first steel wheel, 3, C axle, 30, transition disc, 4, terminal pad, 5, A axle, 6, the second direct-driven servo motor, 60, stator, 61, rotor, 7, second harmonic decelerator, 70, the second steel wheel, 8, the first checkout gear, 80, the first adapter sleeve, 81, the first grating scale, 9, the first hydraulic clamp, 90, copper sheathing, 91, steel bushing, 910, oil-feed oil duct, 92, hydraulic fluid chamber, 10, mainframe box, 11, slave case, 12, protective cover, 13, second detection device, 130, the second adapter sleeve, 131, the second grating scale, 14, the second hydraulic clamp, 140, brake oil cylinder, 141, brake disc, 142, brake block, 143, the second hydraulic proportion valve.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Fig. 1 and Fig. 2 are common, a kind of five axle unit head A axles for CNC milling machine and the drive unit of C axle, comprise and drive C axle 3 the first power set that rotate and the second power set that drive A axle 5 throws, the first power set comprise the first direct-driven servo motor 1 being arranged in mainframe box 10, the clutch end of the first direct-driven servo motor 1 connects the wave producer of first harmonic decelerator 2, and the steel wheel of first harmonic decelerator 2 links together by securing member and C axle 3; The second power set comprise the second direct-driven servo motor 6 being arranged in slave case 11, slave case 11 is hinged to be installed on mainframe box 10, the clutch end of the second direct-driven servo motor 6 is connected with the wave producer of second harmonic decelerator 7, and the steel wheel of second harmonic decelerator 7 and slave case 11 link together by securing member.
In mainframe box 10, be provided with for eliminating the first checkout gear 8 of drive gap, the first checkout gear 8 comprises the first adapter sleeve 80 of the centre bore that runs through first harmonic decelerator 2, one end of the first adapter sleeve 80 is fixedly connected with by securing member with the steel wheel of first harmonic decelerator 2, the other end is connected with the first grating scale 81, and the first grating scale 81 is connected with the first direct-driven servo motor 1 by control module.
In mainframe box 10, be provided with for eliminating the first hydraulic clamp 9 of C axle 3 shakes, the first hydraulic clamp 9 comprises the copper sheathing 90 that is set in C axle 3 outsides, the sheathed steel bushing 91 in outside of copper sheathing 90, steel bushing 91 is fixedly connected with mainframe box 10, between one end of copper sheathing 90 and steel bushing 91, by securing member, be fixedly connected with, the other end is connected with the bearing of C axle 3 by a supporting seat, between copper sheathing 90 and steel bushing 91, form the hydraulic fluid chamber 92 of a sealing, the outer surface of the inwall of copper sheathing 90 and C axle 3 offsets, steel bushing 91 is provided with the oil-feed oil duct 910 being communicated with hydraulic fluid chamber 92, hydraulic fluid chamber 92 is connected with the first hydraulic proportion valve, the first hydraulic proportion valve is connected with control module.
In slave case 11, be provided with for eliminating the second detection device 13 of drive gap, second detection device 13 comprises the second adapter sleeve 130 of the centre bore that runs through second harmonic decelerator 7, one end of the second adapter sleeve 130 is fixedly connected with by securing member with the steel wheel of second harmonic decelerator 7, the other end is connected with the second grating scale 131, and the second grating scale 131 is connected with the second direct-driven servo motor 6 by control module.
In slave case 11, be provided with for eliminating the second hydraulic clamp 14 of A axle 5 shakes, the second hydraulic clamp 14 comprises the brake disc 141 being fixedly connected with slave case 11, brake disc 141 is arranged at the side that second harmonic decelerator 7 is relative, a be provided with brake block 142 corresponding to brake disc 141 positions, brake block 142 is connected with the piston of brake oil cylinder 140, the cylinder body of brake oil cylinder 140 is fixed on slave case 11, brake oil cylinder 140 connects the second hydraulic proportion valve 143, the second hydraulic proportion valve 143 connection control units.
The periphery of the second direct-driven servo motor 6 is provided with a protective cover 12, and protective cover 12 is fixedly installed on slave case 11.
During use, start the first direct-driven servo motor 1, it is the first steel wheel 20 rotations in Fig. 1 that the first direct-driven servo motor 1 drives the steel wheel of first harmonic decelerator 2, the first steel wheel 20 is connected with C axle 3 by securing member, thereby drive C axle 3 to rotate, C axle 3 rotates and drives the slave case 11 linking together to rotate together, can realize processing, if make A axle 5 that throw occur, need to start the second direct-driven servo motor 6, it is the second steel wheel 70 rotations in Fig. 1 that the second direct-driven servo motor 6 drives the steel wheel of second harmonic decelerator 7, the second steel wheel 70 links together with A axle 5, the housing of second harmonic decelerator and slave case 11 are hinged, can drive 5 rotations of A axle, thereby drive the 5 ferry-boat processing of A axle, realize the continuous processing that clamped one time can complete multiaspect and cambered surface, machining accuracy is high.
The closed loop detection system that the first checkout gear 8 forms in use, the steel wheel of one end of the first adapter sleeve 80 and first harmonic decelerator 2 is that the first steel wheel 20 in Fig. 1 links together, direct-detection first harmonic decelerator 2 outputs like this, then after the detection by the first grating scale 81, feed back to control module, control module is controlled the first direct-driven servo motor 1 action after processing, eliminated drive gap, accuracy of detection is high.
In cutting process, can produce resistance to cutting or reaction force acts to C axle 3, C axle 3 can produce shake, now by control module, control the first hydraulic proportional valve events, realizing the first hydraulic proportion valve gives hydraulic fluid chamber 92 fuel feeding, the first hydraulic proportion valve according to the shake size of C axle 3 control by control module determine give hydraulic fluid chamber 92 interior fuel feeding number, can realize the control of the interior oil-feed uninterrupted of hydraulic fluid chamber 92, thereby in hydraulic fluid chamber 92, entering hydraulic oil generation pressure makes copper sheathing 90 produce distortion, the copper sheathing 90 of distortion can give C axle 3 one enclasping forces, with this, eliminate the shake of C axle 3, if C axle 3 is when the rotary course of processing limit, limit, its rotary driving force is greater than the enclasping force that prevents shake, can improve machining accuracy like this.
The detection feedback of second detection device 13 is as identical in the use procedure of above-mentioned the first checkout gear 8.
Same A axle 5 also can produce resistance to cutting in process continuously, make A axle 5 produce shake, now by control module, control the second hydraulic proportion valve 143 actions, realizing the second hydraulic proportion valve 143 gives brake oil cylinder 140 fuel feeding, how many fuel feeding controls the second hydraulic proportion valve 143 according to the size of shake by control module is determined, can realize the control of brake oil cylinder 140 oil-feed uninterrupteds, by 142 actions of piston driving brake block, thereby make brake disc 141 clamp A axle 5, with this, eliminate the shake of A axle 5, improve machining accuracy.
One end of above-mentioned C axle 3 is fixedly connected with the first steel wheel 20 by a transition disc 30, the other end is connected with mainframe box 10 by a terminal pad 4, hinged between mainframe box 10 and slave case 11, between transition disc 30 and C axle 3 and the first steel wheel 20, by securing member, link together respectively, between terminal pad 4 and C axle 3 and mainframe box 10, also by securing member, link together respectively, detachable mutually, be convenient to install, safeguard and use, in addition, C axle 3, terminal pad 4 also can be made of one structure with slave case 11.
Above-mentioned decelerator also can adopt RV reductor.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (6)
1. for five axle unit head A axles of CNC milling machine and the drive unit of C axle, comprise and drive C axle the first power set that rotate and the second power set that drive A shaft displacement, it is characterized in that, described the first power set comprise the first direct-driven servo motor being arranged in mainframe box, the clutch end of described the first direct-driven servo motor connects the wave producer of first harmonic decelerator, and the steel wheel of described first harmonic decelerator links together by securing member and described C axle; Described the second power set comprise the second direct-driven servo motor being arranged in slave case, described slave case is hinged to be installed on described mainframe box, the clutch end of described the second direct-driven servo motor is connected with the wave producer of second harmonic decelerator, and the steel wheel of described second harmonic decelerator and described slave case link together by securing member.
2. the five axle unit head A axles for CNC milling machine according to claim 1 and the drive unit of C axle, it is characterized in that, in described mainframe box, be provided with for eliminating the first checkout gear of drive gap, described the first checkout gear comprises the first adapter sleeve of the centre bore that runs through described first harmonic decelerator, one end of described the first adapter sleeve is fixedly connected with by securing member with the steel wheel of described first harmonic decelerator, the other end is connected with the first grating scale, and described the first grating scale is connected with described the first direct-driven servo motor by control module.
3. the five axle unit head A axles for CNC milling machine according to claim 2 and the drive unit of C axle, it is characterized in that, in described mainframe box, be provided with for eliminating the first hydraulic clamp of C dither axis, described the first hydraulic clamp comprises the copper sheathing that is set in described C axle outside, the sheathed steel bushing in outside of described copper sheathing, described steel bushing is fixedly connected with described mainframe box, between one end of described copper sheathing and described steel bushing, by securing member, be fixedly connected with, the other end is connected with the bearing of described C axle by a supporting seat, between described copper sheathing and described steel bushing, form the hydraulic fluid chamber of a sealing, the outer surface of the inwall of described copper sheathing and described C axle offsets, described steel bushing is provided with the oil-feed oil duct being communicated with described hydraulic fluid chamber, described hydraulic fluid chamber is connected with the first hydraulic proportion valve, described the first hydraulic proportion valve is connected with described control module.
4. the five axle unit head A axles for CNC milling machine according to claim 1 and the drive unit of C axle, it is characterized in that, in described slave case, be provided with for eliminating the second detection device of drive gap, described second detection device comprises the second adapter sleeve of the centre bore that runs through described second harmonic decelerator, one end of described the second adapter sleeve is fixedly connected with by securing member with the steel wheel of described second harmonic decelerator, the other end is connected with the second grating scale, and described the second grating scale is connected with described the second direct-driven servo motor by control module.
5. the five axle unit head A axles for CNC milling machine according to claim 4 and the drive unit of C axle, it is characterized in that, in described slave case, be provided with for eliminating the second hydraulic clamp of A dither axis, described the second hydraulic clamp comprises the brake disc being fixedly connected with described slave case, described brake disc is arranged at the side that described second harmonic decelerator is relative, a be provided with brake block corresponding to described brake disc position, described brake block is connected with the piston of brake oil cylinder, the cylinder body of described brake oil cylinder is fixed on described slave case, described brake oil cylinder connects the second hydraulic proportion valve, described the second hydraulic proportion valve connects described control module.
6. the five axle unit head A axles for CNC milling machine according to claim 5 and the drive unit of C axle, is characterized in that, the periphery of described the second direct-driven servo motor is provided with a protective cover, and described protective cover is fixedly installed on described slave case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420063655.9U CN203804640U (en) | 2014-02-12 | 2014-02-12 | Driving device for shaft A and shaft C of five-shaft power head of numerical control milling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420063655.9U CN203804640U (en) | 2014-02-12 | 2014-02-12 | Driving device for shaft A and shaft C of five-shaft power head of numerical control milling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203804640U true CN203804640U (en) | 2014-09-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420063655.9U Expired - Lifetime CN203804640U (en) | 2014-02-12 | 2014-02-12 | Driving device for shaft A and shaft C of five-shaft power head of numerical control milling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203804640U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109513976A (en) * | 2018-12-24 | 2019-03-26 | 吴行飞 | A/C axis double-pendulum milling head based on the driving of internal rotor torque motor |
-
2014
- 2014-02-12 CN CN201420063655.9U patent/CN203804640U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109513976A (en) * | 2018-12-24 | 2019-03-26 | 吴行飞 | A/C axis double-pendulum milling head based on the driving of internal rotor torque motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161123 Address after: 261500 Gaomi City Province, Weifang City, the road west of the three real security North Avenue, North Patentee after: GAOMI HONGTAI MACHINE TOOL MANUFACTURING CO.,LTD. Address before: 261501 Shandong city of Weifang province Gaomi City Bai town Shandong Hongtai mechanical Polytron Technologies Inc Patentee before: SHANDONG HONGTAI MACHINERY TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20140903 |
|
| CX01 | Expiry of patent term |