CN108644338B - Mechanical single-swing-head speed change structure for five-axis composite machining center - Google Patents

Mechanical single-swing-head speed change structure for five-axis composite machining center Download PDF

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Publication number
CN108644338B
CN108644338B CN201810701038.XA CN201810701038A CN108644338B CN 108644338 B CN108644338 B CN 108644338B CN 201810701038 A CN201810701038 A CN 201810701038A CN 108644338 B CN108644338 B CN 108644338B
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gear
shaft
input shaft
pinion
fixed
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CN108644338A (en
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陈虎
侯延星
张传思
邵昭
段惠强
范春宏
时冬梅
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Dalian Kede Numerical Control Co Ltd
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Dalian Kede Numerical Control Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
    • F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
    • 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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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gear Transmission (AREA)
  • Structure Of Transmissions (AREA)

Abstract

The invention discloses a mechanical single-swing-head speed change structure for a five-axis composite machining center, which comprises the following components: the first input shaft and the first output gear shaft are positioned on one side of the gear shaft, the second input shaft and the second output gear shaft are positioned on the other side of the gear shaft, one end of the first input shaft is fixed with a first belt wheel, the other end of the first input shaft is fixed with a first pinion, one end of the second input shaft is fixed with a second belt wheel, and the other end of the second input shaft is fixed with a second pinion; a first large gear is fixed at the connection end of the first output gear shaft and the first input shaft, a second large gear is fixed at the connection end of the second output gear shaft and the second input shaft, and the inert large gear, the duplex large gear and the duplex small gear are sequentially fixed on the gear shaft; the second pinion is meshed with the inert large gear, the first pinion is meshed with the duplex large gear, the second large gear is meshed with the duplex small gear, and the first large gear is meshed with the gear shaft. The speed change structure is compact, the space is saved, the output torque is improved in a limited space, and the rigidity is high.

Description

Mechanical single-swing-head speed change structure for five-axis composite machining center
Technical Field
The invention relates to the field of metal machining, in particular to a mechanical single-swing-head speed change structure for a five-axis composite machining center.
Background
The five-axis composite machining center is large-scale machining equipment widely applied to the aerospace field, the swinging head is an important functional part of the five-axis composite machining center and is used for machining in linkage with other axes, and efficient and high-precision machining of workpieces is achieved, so that requirements for high torque, high rigidity and high precision are provided for the swinging head. At present, most of the swinging heads have large volume, small swinging torque in a limited space and low rigidity, and if the swinging heads are directly driven by a torque motor, the torque is small and the heating value is large.
Disclosure of Invention
The invention provides a mechanical single-swing-head speed change structure for a five-axis composite machining center, which aims to overcome the technical problems.
The invention relates to a mechanical single-swing-head speed change structure for a five-axis composite machining center, which comprises the following components:
the device comprises a first input shaft, a second input shaft, a first output gear shaft, a second output gear shaft, a first belt pulley and a second belt pulley which are connected with a power mechanism, wherein the length of the first input shaft is larger than that of the second input shaft, and the length of the first output gear shaft is smaller than that of the second output gear shaft;
the first input shaft and the first output gear shaft are positioned on one side of the gear shaft, the second input shaft and the second output gear shaft are positioned on the other side of the gear shaft, one end of the first input shaft is fixed with the first belt wheel, the other end of the first input shaft is fixed with the first pinion, one end of the second input shaft is fixed with the second belt wheel, and the other end of the second input shaft is fixed with the second pinion;
the first output gear shaft is fixedly connected with the first input shaft, the second output gear shaft is fixedly connected with the second input shaft, and the gear shafts are sequentially fixedly provided with an inert large gear, a duplex large gear and a duplex small gear;
the second pinion is meshed with the inert large gear, the first pinion is meshed with the duplex large gear, the second large gear is meshed with the duplex small gear, and the first large gear is meshed with the gear shaft. The radius of the first large gear and the radius of the second large gear are larger than those of the first small gear, the radius of the second small gear and the radius of the gear shaft, and the radius of the duplex large gear is larger than that of the duplex small gear.
Further, the first belt pulley is fixedly connected to the first input shaft through the expansion sleeve, and the second belt pulley is fixedly connected to the second input shaft through the expansion sleeve.
Further, the ends of two sides of the first input shaft, the second input shaft, the first output gear shaft and the second output gear shaft are supported by cylindrical roller bearings, and the two ends of the gear shaft are supported by deep groove ball bearings.
Further, the first pinion is fixed on the first input shaft by a key, the first large gear is fixed on the first output gear shaft by a key, the second pinion is fixed on the second input shaft by a key, the second large gear is fixed on the output long gear shaft by a key, the inert large gear is fixed on the gear shaft by a key, and the double large gears and the double small gears are fixed together by welding.
The length of the first input shaft of the mechanical single-pendulum head speed change structure is larger than that of the second input shaft, the second pinion is meshed with the inert large gear, the first pinion is meshed with the double large gear, the second large gear is meshed with the double pinion, the first large gear is meshed with the gear shaft, the speed change structure is compact, space is saved, output torque is improved in a limited space, the rigidity is high, and the requirement of the equipment on swinging heads is met.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it will be obvious that the drawings in the following description are some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.
Fig. 1 is a schematic diagram of a mechanical single-swing-head variable speed structure for a five-axis composite machining center of the invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Fig. 1 is a schematic diagram of a mechanical single-swing-head speed change structure for a five-axis composite machining center according to the present invention, and as shown in fig. 1, the mechanical single-swing-head speed change structure of the present embodiment may include:
the first input shaft 5, the second input shaft 7, the first output gear shaft 15, the second output gear shaft 12, the gear shaft 14, the first belt pulley 4 and the second belt pulley 8 connected with the power mechanism, wherein the length of the first input shaft is larger than that of the second input shaft, and the length of the first output gear shaft is smaller than that of the second output gear shaft;
the first input shaft and the first output gear shaft are positioned on one side of the gear shaft, the second input shaft and the second output gear shaft are positioned on the other side of the gear shaft, one end of the first input shaft is fixed with the first belt wheel, the other end of the first input shaft is fixed with the first pinion 3, one end of the second input shaft is fixed with the second belt wheel, and the other end of the second input shaft is fixed with the second pinion 9;
the first output gear shaft and the first input shaft are connected, a first large gear 2 is fixed, the second output gear shaft and the second input shaft are connected, a second large gear 11 is fixed, and the gear shaft 14 is sequentially fixed with an inert large gear 6, a double large gear 10 and a double small gear 13;
the second pinion is meshed with the inert large gear, the first pinion is meshed with the duplex large gear, the second large gear is meshed with the duplex small gear, and the first large gear is meshed with the gear shaft.
Specifically, the power source inputs power through the first pulley and the second pulley, and the first output gear shaft and the second output gear shaft provided in the case 1 output power. The tail ends of the first output gear shaft and the second output gear shaft are unsupported, so that the whole volume is more compact, and meanwhile, the manufacturing and the installation are convenient.
Further, the first pulley is fixedly connected to the first input shaft through the expansion sleeve 16, and the second pulley is fixedly connected to the second input shaft through the expansion sleeve 16. The first input shaft 5 and the second input shaft 7 are simply manufactured and installed through the expansion sleeve connection, and the expansion sleeve has long service life. According to the embodiment, the belt wheel is fixed by adopting the expansion sleeve, so that the centering precision between the fixed belt wheel and the input shaft is improved; the belt wheel is convenient to install/adjust/disassemble; the belt pulley has high strength and stable and reliable connection; the device is protected from damage in case of overload, and is particularly suitable for transmitting heavy loads.
Further, the ends of the two sides of the first input shaft, the second input shaft, the first output gear shaft and the second output gear shaft are supported by cylindrical roller bearings, and the two ends of the gear shaft are supported by deep groove ball bearings.
Specifically, the internal structure of the cylindrical roller bearing adopts rollers which are arranged in parallel, and a spacer or a spacer block is arranged between the rollers, so that the inclination of the rollers or the mutual friction between the rollers can be prevented, and the increase of the rotation torque is effectively prevented. In order to ensure stable and reliable transmission, the ends of the two sides of the input long shaft, the input short shaft, the output short gear shaft and the output long gear shaft are supported by cylindrical roller bearings. The two ends of the gear shaft are supported by deep groove ball bearings.
Further, the first pinion is fixed on the first input shaft by a key, the first large gear is fixed on the first output gear shaft by a key, the second pinion is fixed on the second input shaft by a key, the second large gear is fixed on the output long gear shaft by a key, the inert large gear is fixed on the gear shaft by a key, and the double large gears and the double small gears are fixed together by welding.
Specifically, the double large gear and the double small gear are fixed together and rotate around the gear shaft.
The working principle of the mechanical single-swing speed change structure of the five-axis composite machining center is as follows:
the first pulley and the second pulley drive the first input shaft to rotate by the power input by the power source, the first pinion gear is meshed with the transmission duplex pinion gear, the duplex pinion gear is driven by the duplex pinion gear, the duplex pinion gear is meshed with the transmission second pinion gear, and therefore power is output from the second output gear shaft.
The first belt wheel and the second belt wheel drive the second input shaft to rotate by the power input by the power source, the second small gear on the second input shaft is meshed with the idler gear big gear, the gear shaft is meshed with the first big gear for transmission, and the first short gear shaft outputs power.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not by way of limitation. Although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.

Claims (4)

1. A mechanical single-swing speed change structure for a five-axis composite machining center, comprising:
the device comprises a first input shaft, a second input shaft, a first output gear shaft, a second output gear shaft, a first belt pulley and a second belt pulley which are connected with a power mechanism, wherein the length of the first input shaft is larger than that of the second input shaft, and the length of the first output gear shaft is smaller than that of the second output gear shaft;
the first input shaft and the first output gear shaft are positioned on one side of the gear shaft, the second input shaft and the second output gear shaft are positioned on the other side of the gear shaft, one end of the first input shaft is fixed with the first belt wheel, the other end of the first input shaft is fixed with the first pinion, one end of the second input shaft is fixed with the second belt wheel, and the other end of the second input shaft is fixed with the second pinion;
the first output gear shaft is fixedly connected with the first input shaft, the second output gear shaft is fixedly connected with the second input shaft, and the gear shaft is sequentially sleeved with an inert gear wheel, a duplex gear wheel and a duplex pinion, wherein the inert gear wheel is fixed on the gear shaft, and the duplex gear wheel and the duplex pinion are fixed together and then rotate around the gear shaft;
the second pinion is meshed with the inert large gear, the first pinion is meshed with the duplex large gear, the second large gear is meshed with the duplex small gear, and the first large gear is meshed with the gear shaft.
2. The mechanical single-swing transmission structure according to claim 1, wherein the first pulley is fixedly connected to the first input shaft by a tension sleeve, and the second pulley is fixedly connected to the second input shaft by a tension sleeve.
3. The mechanical single-swing speed change structure according to claim 1, wherein the two side ends of the first input shaft, the second input shaft, the first output gear shaft and the second output gear shaft are supported by cylindrical roller bearings, and the two ends of the gear shafts are supported by deep groove ball bearings.
4. The mechanical single-swing transmission structure according to claim 1, wherein the first pinion is keyed to the first input shaft, the first bull gear is keyed to the first output gear shaft, the second pinion is keyed to the second input shaft, the second bull gear is keyed to the output long gear shaft, the idler bull gear is keyed to the gear shaft, and the twin bull gears are welded together.
CN201810701038.XA 2018-06-29 2018-06-29 Mechanical single-swing-head speed change structure for five-axis composite machining center Active CN108644338B (en)

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CN108644338B true CN108644338B (en) 2023-06-23

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Citations (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB616474A (en) * 1946-09-05 1949-01-21 John Thomas Naylor Improvements relating to variable speed gears
DE1223649B (en) * 1959-07-06 1966-08-25 Smidth & Co As F L Two-way transmission
US3824875A (en) * 1973-05-21 1974-07-23 Egan Machinery Co Drive for twin screw extruder
FR2220028A1 (en) * 1973-03-01 1974-09-27 Westinghouse Electric Corp
GB1515271A (en) * 1974-08-09 1978-06-21 Newage Engineers Ltd Variable-speed gear transmission
JP2002161957A (en) * 2000-11-27 2002-06-07 Nissan Motor Co Ltd Toroidal type continuously variable transmission
CN101007388A (en) * 2007-01-24 2007-08-01 大连光洋科技工程有限公司 Milling head with simple pendulum based on single axis
CN101012857A (en) * 2007-01-24 2007-08-08 大连光洋科技工程有限公司 Hydraulic expanding sleeve locking mechanism
JP2009154610A (en) * 2007-12-25 2009-07-16 Toyota Motor Corp Multi-clutch type transmission
DE102011007320A1 (en) * 2011-04-13 2012-10-18 Kessler & Co Gmbh & Co.Kg Wheel drive for vehicle, comprises single-stage planetary gear with wheel-side planetary carrier, which is arranged in wheel hub, stationary ring gear, and sun gear, which is driven by input shaft
CN102873573A (en) * 2012-10-12 2013-01-16 江苏新瑞重工科技有限公司 Strong five-shaft linked swing head mechanism of large-power electric spindle
EP2873890A1 (en) * 2013-11-15 2015-05-20 Volvo Car Corporation Dependency transmission
CN105081437A (en) * 2015-09-07 2015-11-25 燕山大学 Planetary gear transmission type A/C double-swing-angle milling head
FR3023200A1 (en) * 2014-07-04 2016-01-08 Air Liquide Welding France DEVICE FOR WELDING WELDING DEVICE WITH EPICYCLOID GEAR SPEED REDUCER
KR20160026953A (en) * 2016-02-22 2016-03-09 명지대학교 산학협력단 Wire reduction gear
JP2016053412A (en) * 2014-07-16 2016-04-14 本田技研工業株式会社 transmission
DE102015112252A1 (en) * 2015-07-28 2017-02-02 Saf-Holland Gmbh Transmission housing and gear unit
DE102015120356A1 (en) * 2015-11-25 2017-06-01 Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg Multi-step transmission for a motor vehicle
CN107914150A (en) * 2017-12-29 2018-04-17 科德数控股份有限公司 A kind of positioning accuracy adjustment structure of horizontal five axis Compositions of metal-working machines
CN208417438U (en) * 2018-06-29 2019-01-22 科德数控股份有限公司 Mechanical single pendulum head speed changing structure for five axis Compositions of metal-working machines

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002340138A (en) * 2001-05-21 2002-11-27 Honda Motor Co Ltd Automatic transmission for vehicle
DE10151752A1 (en) * 2001-10-19 2003-05-08 Zahnradfabrik Friedrichshafen Manual transmission in countershaft design
NL1033127C2 (en) * 2006-12-22 2008-06-24 Eaton Automotive Bv Reduction mechanism.
US7587957B2 (en) * 2007-02-05 2009-09-15 Eaton Corporation Multiple-ratio dual clutch vehicle transmission
CN108001183B (en) * 2016-10-31 2020-02-21 比亚迪股份有限公司 Power transmission system and vehicle with same

Patent Citations (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB616474A (en) * 1946-09-05 1949-01-21 John Thomas Naylor Improvements relating to variable speed gears
DE1223649B (en) * 1959-07-06 1966-08-25 Smidth & Co As F L Two-way transmission
FR2220028A1 (en) * 1973-03-01 1974-09-27 Westinghouse Electric Corp
US3824875A (en) * 1973-05-21 1974-07-23 Egan Machinery Co Drive for twin screw extruder
GB1515271A (en) * 1974-08-09 1978-06-21 Newage Engineers Ltd Variable-speed gear transmission
JP2002161957A (en) * 2000-11-27 2002-06-07 Nissan Motor Co Ltd Toroidal type continuously variable transmission
CN101007388A (en) * 2007-01-24 2007-08-01 大连光洋科技工程有限公司 Milling head with simple pendulum based on single axis
CN101012857A (en) * 2007-01-24 2007-08-08 大连光洋科技工程有限公司 Hydraulic expanding sleeve locking mechanism
JP2009154610A (en) * 2007-12-25 2009-07-16 Toyota Motor Corp Multi-clutch type transmission
DE102011007320A1 (en) * 2011-04-13 2012-10-18 Kessler & Co Gmbh & Co.Kg Wheel drive for vehicle, comprises single-stage planetary gear with wheel-side planetary carrier, which is arranged in wheel hub, stationary ring gear, and sun gear, which is driven by input shaft
CN102873573A (en) * 2012-10-12 2013-01-16 江苏新瑞重工科技有限公司 Strong five-shaft linked swing head mechanism of large-power electric spindle
EP2873890A1 (en) * 2013-11-15 2015-05-20 Volvo Car Corporation Dependency transmission
FR3023200A1 (en) * 2014-07-04 2016-01-08 Air Liquide Welding France DEVICE FOR WELDING WELDING DEVICE WITH EPICYCLOID GEAR SPEED REDUCER
JP2016053412A (en) * 2014-07-16 2016-04-14 本田技研工業株式会社 transmission
DE102015112252A1 (en) * 2015-07-28 2017-02-02 Saf-Holland Gmbh Transmission housing and gear unit
CN105081437A (en) * 2015-09-07 2015-11-25 燕山大学 Planetary gear transmission type A/C double-swing-angle milling head
DE102015120356A1 (en) * 2015-11-25 2017-06-01 Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg Multi-step transmission for a motor vehicle
KR20160026953A (en) * 2016-02-22 2016-03-09 명지대학교 산학협력단 Wire reduction gear
CN107914150A (en) * 2017-12-29 2018-04-17 科德数控股份有限公司 A kind of positioning accuracy adjustment structure of horizontal five axis Compositions of metal-working machines
CN208417438U (en) * 2018-06-29 2019-01-22 科德数控股份有限公司 Mechanical single pendulum head speed changing structure for five axis Compositions of metal-working machines

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
Feng Gao ET AL.Automatic control method research on pendulum speed of roadheader's cutting arm.IEEE.2011,4789-4791. *
提高机器人结构刚度及关节精度的方法;房立金;孙龙飞;许继谦;;航空制造技术(第04期);30-36、55 *
用于异面轴线间旋转运动传递的连杆机构设计;刘诗汉;王新军;;新技术新工艺(第04期);46-48 *

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