CN101453145A - Electric pushing device - Google Patents
Electric pushing device Download PDFInfo
- Publication number
- CN101453145A CN101453145A CNA2007101645738A CN200710164573A CN101453145A CN 101453145 A CN101453145 A CN 101453145A CN A2007101645738 A CNA2007101645738 A CN A2007101645738A CN 200710164573 A CN200710164573 A CN 200710164573A CN 101453145 A CN101453145 A CN 101453145A
- Authority
- CN
- China
- Prior art keywords
- screw mandrel
- pedestal
- permanent magnet
- nut
- external rotor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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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
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/64—Mould opening, closing or clamping devices
- B29C45/66—Mould opening, closing or clamping devices mechanical
- B29C45/661—Mould opening, closing or clamping devices mechanical using a toggle mechanism for mould clamping
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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
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H2025/2062—Arrangements for driving the actuator
- F16H2025/2075—Coaxial drive motors
- F16H2025/2078—Coaxial drive motors the rotor being integrated with the nut or screw body
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Manufacture Of Motors, Generators (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to an electric pushing device. The electric pushing device comprises a pedestal; a screw rod is inserted in the pedestal; the device also comprises a screw rod and a nut which are engaged with each other; the front end of the screw rod is the pushing end; the pedestal is connected with an outer rotor permanent magnetic servo motor; and the nut is fixed on a rotor of the outer rotor permanent magnetic servo motor. The electric pushing device has the advantages of energy conservation and high precision.
Description
(1) technical field
The present invention relates to employed electric pushing device on a kind of engineering machinery, for example injection molding machine, the employed thrustor of jack.
(2) background technology
The thrustor of existing injection molding machine mostly is the hydraulic lock mold mechanism, adopts hydraulic jack to promote mechanical mechanism, finishes the folding of mould.
Also there is electric pushing device to be applied on the injection molding machine as shown in Figure 1; the rod hinge connection of exterior sheathing and matched moulds mechanical mechanism is provided with nut on rear pattern plate, screw mandrel cooperates with this nut; the screw mandrel front end connects the matched moulds mechanical mechanism, the rear end of screw mandrel by pulley mechanism by driven by motor.Screw mandrel is in rotary course, and because of the promotion of nut, generation is advanced or retreated, and drives matched moulds machinery mechanism action.The shortcoming of this electric pushing device is: to the structure more complicated of the running part of screw mandrel, need be to the screw mandrel transfer torque in the motion, and this will open long keyway, and caused friction consumes very big; Secondly, the belt pulley kind of drive unavoidably has skidding, is unfavorable for the accurate control of pushing tow process; Once more, the transmission mechanism bulky complex, compact inadequately, multistage transmission causes that on the contrary energy efficiency reduces.
The version of another kind of electric pushing device is as shown in Figure 2: the rod hinge connection of rear pattern plate and matched moulds mechanical mechanism; on the matched moulds mechanical mechanism, nut is installed; the screw mandrel that is arranged on the rear pattern plate cooperates with this nut, screw mandrel by pulley transmission mechanism by motor drives.Nut is advanced and retreat on screw mandrel when screw mandrel rotates, and drives matched moulds mechanical mechanism die sinking or matched moulds.Its shortcoming is that screw mandrel maintains static, and influences die sinking.For matched moulds need keep equivalent length with screw mandrel, and mechanical mechanism retreats when die sinking, and easy and screw mandrel front end is conflicted, and opening stroke is restricted, can not do big part goods.In addition, transmission mechanism complexity, energy consumption shortcoming big, that the pushing tow accuracy is poor, the life-span is short exists too.
(3) summary of the invention
The present invention will solve that existing electric mode locking device mechanism complexity, efficiency are low, the shortcoming of accuracy difference, a kind of compact conformation is provided, helps accurately control and the high electric pushing device of efficiency.
Electric pushing device of the present invention comprises pedestal, screw mandrel is located on the pedestal, also comprise intermeshing screw mandrel and nut, the screw mandrel front end is a pushing end, it is characterized in that: connect an external rotor permanent magnet formula servomotor on the pedestal, described nut is fixed on the rotor of external rotor permanent magnet formula servomotor.
Further, the rotor of described external rotor permanent magnet formula servomotor is arranged on the pedestal by taper roll bearing, the rotor of external rotor permanent magnet formula servomotor and described nut, screw mandrel coaxial arrangement, the stator of external rotor permanent magnet formula servomotor connects housing, and housing connects described pedestal.
When external rotor permanent magnet formula servomotor energising rotation, the nut rotation, the driving screw mandrel advances or retreats, and finishes the pushing tow action.
Compact conformation of the present invention, easy, nut directly is connected with motor, has avoided the how caused energy loss of gear stage, improves Energy Efficiency Ratio, also helps the accurate control of pushing tow process.
Advantage of the present invention is: compact conformation, easy, and the Energy Efficiency Ratio height, mould-closing stroke control is accurately.
(4) description of drawings
Fig. 1 is the structure chart of existing electric pushing device.
Fig. 2 is the structure chart of another existing electric pushing device.
Fig. 3 is that the present invention is applied in the structural representation on the injection molding machine.
Fig. 4 is that the present invention is applied in the structural representation on the jack.
(5) embodiment
Embodiment one
With reference to Fig. 3
Present embodiment is the example of the present invention when being applied to electric mode locking device on the injection molding machine.
Electric pushing device of the present invention comprises pedestal, screw mandrel passes and is located on the pedestal, also comprises intermeshing screw mandrel and nut, and the screw mandrel front end is a pushing end, connect an external rotor permanent magnet formula servomotor on the pedestal, described nut is fixed on the rotor of external rotor permanent magnet formula servomotor.
The rotor of described external rotor permanent magnet formula servomotor is arranged on the pedestal by taper roll bearing, the rotor of external rotor permanent magnet formula servomotor and described nut, screw mandrel coaxial arrangement, the stator of external rotor permanent magnet formula servomotor connects housing, and housing connects described pedestal.
The present invention is applied on the electric mode locking device in the present embodiment, and rear pattern plate 10 is pedestals.This electric mode locking device comprises the matched moulds mechanical mechanism, the front template 16 that described matched moulds mechanical mechanism comprises rear pattern plate 10, is used to that the moving die plate 15 of dynamic model 17 is installed and cover half 18 is installed, and described moving die plate 15 can close up relatively and separate with front template 16.Screw mandrel 8 is arranged on the described rear pattern plate 10, the screw mandrel 8 anterior cross car walls 14 that connect described matched moulds mechanical mechanism.
External rotor permanent magnet formula servomotor is housed on the rear pattern plate 10, and the rotor 3 of described external rotor permanent magnet formula servomotor connects and described screw mandrel 8 nut engaged 9.Screw mandrel 8 adopts ball screw, and nut 9 adopts ball nut.
The rotor 3 of described external rotor permanent magnet formula servomotor is arranged on the rear pattern plate 10 by taper roll bearing 2, the rotor 3 of external rotor permanent magnet formula servomotor and described nut 9, screw mandrel 8 coaxial arrangement, the stator 6 of external rotor permanent magnet formula servomotor connects shell 7, and shell 7 connects described rear pattern plate 10.
Described matched moulds mechanical mechanism is a crank connecting rod mechanism; the rear end of the bent hand 11 of the hinged symmetrically up and down a pair of elbow of rear pattern plate 10; the front end of the bent hand 11 of elbow is simultaneously hinged with the rear end of bent hand small rod 12 and bent hand big connecting rod 13; the other end of two bent hand small rods 12 is hinged on cross car wall 14 two ends symmetrically, and the front end of two bent hand big connecting rods 13 is hinged on moving die plate 15 upper and lower sides symmetrically.
Screw mandrel driving mechanism compactness of the present invention, easy, nut directly is connected with external rotor permanent magnet formula servomotor, has avoided the how caused energy loss of gear stage, improves Energy Efficiency Ratio, also helps the accurate control of screw rod process.
Embodiment two
With reference to Fig. 5,6:
Present embodiment is that applied field is different with the difference of embodiment one, and present embodiment is that the present invention is applied in the example on the jack.
Electric pushing device of the present invention comprises pedestal, screw mandrel passes and is located on the pedestal, also comprises intermeshing screw mandrel and nut, and the screw mandrel front end is a pushing end, connect an external rotor permanent magnet formula servomotor on the pedestal, described nut is fixed on the rotor of external rotor permanent magnet formula servomotor.
The rotor of described external rotor permanent magnet formula servomotor is arranged on the pedestal by taper roll bearing, the rotor of external rotor permanent magnet formula servomotor and described nut, screw mandrel coaxial arrangement, the stator of external rotor permanent magnet formula servomotor connects housing, and housing connects described pedestal.
The present invention is applied on the jack, and jack base 20 and jack loam cake 21 are pedestals, and the housing of external rotor permanent magnet formula servomotor is contained on the jack base 20, and bearing pedestal 1 and taper roll bearing 2 are contained on the jack loam cake 21.
When nut 9 rotated under the stator of external rotor magneto servomotor drives, screw mandrel was upwards done jacking.When the motor reverse rotation, screw mandrel draws in downwards.
The described content of this specification embodiment only is enumerating the way of realization of inventive concept; protection scope of the present invention should not be regarded as only limiting to the concrete form that embodiment states, protection scope of the present invention also reach in those skilled in the art conceive according to the present invention the equivalent technologies means that can expect.
Claims (2)
1, electric pushing device comprises pedestal, and screw mandrel is located on the pedestal, also comprise intermeshing screw mandrel and nut, the screw mandrel front end is a pushing end, it is characterized in that: connect an external rotor permanent magnet formula servomotor on the pedestal, described nut is fixed on the rotor of external rotor permanent magnet formula servomotor.
2, electric pushing device as claimed in claim 1, it is characterized in that: the rotor of described external rotor permanent magnet formula servomotor is arranged on the pedestal by taper roll bearing, the rotor of external rotor permanent magnet formula servomotor and described nut, screw mandrel coaxial arrangement, the stator of external rotor permanent magnet formula servomotor connects housing, and housing connects described pedestal.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNA2007101645738A CN101453145A (en) | 2007-12-07 | 2007-12-07 | Electric pushing device |
PCT/CN2008/072709 WO2009074032A1 (en) | 2007-12-07 | 2008-10-16 | An electric pushing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNA2007101645738A CN101453145A (en) | 2007-12-07 | 2007-12-07 | Electric pushing device |
Publications (1)
Publication Number | Publication Date |
---|---|
CN101453145A true CN101453145A (en) | 2009-06-10 |
Family
ID=40735216
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNA2007101645738A Pending CN101453145A (en) | 2007-12-07 | 2007-12-07 | Electric pushing device |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN101453145A (en) |
WO (1) | WO2009074032A1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103280921A (en) * | 2013-04-27 | 2013-09-04 | 方铝清 | Driving motor and milling disc lifting mechanism of bead mill |
CN103780007A (en) * | 2012-10-18 | 2014-05-07 | 大银微***股份有限公司 | Outer rotation type straight-drive mechanism with screw reciprocating motion |
CN106329881A (en) * | 2015-06-15 | 2017-01-11 | 李启飞 | Electric speed regulation cylinder type magnetic coupler equipped with sliding lead screw |
CN108233618A (en) * | 2018-01-31 | 2018-06-29 | 湖北环电磁装备工程技术有限公司 | The jack device that a kind of no frame permanent magnet synchronous motor directly drives |
CN108233619A (en) * | 2018-01-31 | 2018-06-29 | 湖北环电磁装备工程技术有限公司 | The jack device that a kind of rimless combination type permanent-magnet linear synchronous motor directly drives |
WO2018130154A1 (en) * | 2017-01-12 | 2018-07-19 | 杭州宇树科技有限公司 | High power mass density linear driving device of simplified structure |
CN113503292A (en) * | 2021-08-23 | 2021-10-15 | 中国电子科技集团公司第三十八研究所 | Electric bolt |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010005538A1 (en) * | 2010-01-23 | 2011-07-28 | Schaeffler Technologies GmbH & Co. KG, 91074 | Wind energy plant with one or more rotor blades |
EP2891824B1 (en) | 2013-10-29 | 2021-10-20 | Venture-Invest Bohemia s.r.o. | Slider |
DE202014103629U1 (en) | 2014-08-05 | 2014-09-18 | Perma Gear Gmbh Magnetische Antriebselemente | pusher |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1193903A (en) * | 1997-09-18 | 1999-04-06 | Ribekkusu:Kk | Hydraulic cylinder with built-in valve for positioning control |
JPH11122865A (en) * | 1997-10-17 | 1999-04-30 | Thk Co Ltd | Ball screw device with motor |
JP4917554B2 (en) * | 2006-01-31 | 2012-04-18 | Thk株式会社 | Hollow motor drive device |
CN200977715Y (en) * | 2006-10-08 | 2007-11-21 | 顺德职业技术学院 | Straight driving injection machine liftout attachment |
CN201122873Y (en) * | 2007-12-07 | 2008-09-24 | 联塑(杭州)机械有限公司 | Electric pushing device |
CN201136276Y (en) * | 2007-12-07 | 2008-10-22 | 联塑(杭州)机械有限公司 | Electric mould-locking device |
CN101306574B (en) * | 2008-06-25 | 2010-12-15 | 联塑(杭州)机械有限公司 | Electric thruster |
-
2007
- 2007-12-07 CN CNA2007101645738A patent/CN101453145A/en active Pending
-
2008
- 2008-10-16 WO PCT/CN2008/072709 patent/WO2009074032A1/en active Application Filing
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103780007A (en) * | 2012-10-18 | 2014-05-07 | 大银微***股份有限公司 | Outer rotation type straight-drive mechanism with screw reciprocating motion |
CN103280921A (en) * | 2013-04-27 | 2013-09-04 | 方铝清 | Driving motor and milling disc lifting mechanism of bead mill |
CN106329881A (en) * | 2015-06-15 | 2017-01-11 | 李启飞 | Electric speed regulation cylinder type magnetic coupler equipped with sliding lead screw |
WO2018130154A1 (en) * | 2017-01-12 | 2018-07-19 | 杭州宇树科技有限公司 | High power mass density linear driving device of simplified structure |
CN108233618A (en) * | 2018-01-31 | 2018-06-29 | 湖北环电磁装备工程技术有限公司 | The jack device that a kind of no frame permanent magnet synchronous motor directly drives |
CN108233619A (en) * | 2018-01-31 | 2018-06-29 | 湖北环电磁装备工程技术有限公司 | The jack device that a kind of rimless combination type permanent-magnet linear synchronous motor directly drives |
CN113503292A (en) * | 2021-08-23 | 2021-10-15 | 中国电子科技集团公司第三十八研究所 | Electric bolt |
CN113503292B (en) * | 2021-08-23 | 2022-08-12 | 中国电子科技集团公司第三十八研究所 | Electric bolt |
Also Published As
Publication number | Publication date |
---|---|
WO2009074032A1 (en) | 2009-06-18 |
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Open date: 20090610 |