CN101480851B - Press - Google Patents

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Publication number
CN101480851B
CN101480851B CN2009100958024A CN200910095802A CN101480851B CN 101480851 B CN101480851 B CN 101480851B CN 2009100958024 A CN2009100958024 A CN 2009100958024A CN 200910095802 A CN200910095802 A CN 200910095802A CN 101480851 B CN101480851 B CN 101480851B
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CN
China
Prior art keywords
main shaft
flywheel
clutch
slide block
eccentric blocks
Prior art date
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Active
Application number
CN2009100958024A
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Chinese (zh)
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CN101480851A (en
Inventor
郑良才
郭文斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ningbo Jingda Machine-Electric & Technology Co., Ltd.
Original Assignee
Ningbo Jingda Forming Equipment Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ningbo Jingda Forming Equipment Co Ltd filed Critical Ningbo Jingda Forming Equipment Co Ltd
Priority to CN2009100958024A priority Critical patent/CN101480851B/en
Publication of CN101480851A publication Critical patent/CN101480851A/en
Application granted granted Critical
Publication of CN101480851B publication Critical patent/CN101480851B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B1/00Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/26Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks
    • B30B1/266Drive systems for the cam, eccentric or crank axis

Abstract

The invention relates to a press machine which comprises a main shaft, two eccentric blocks, a driver, a first flywheel, a second flywheel, a first clutch and a second clutch. The first flywheel and the first clutch are arranged at one side of the main shaft, the second flywheel and the second clutch are arranged at the other side of the main shaft, the driver drives the two flywheels to rotate at the same time, the two flywheels drive the main shaft to rotate by the action of the two clutches, and the main shaft is provided with the two eccentric blocks and drives a slide block to move up and down by the action of the two eccentric blocks, thereby an upper die of a press machine die which is installed on the bottom plane of the slide block is driven to move up and down in a reciprocating way. The invention has the advantages that the press machine utilizes the driver and drives one main shaft at the same time to cause torque of the two flywheels acted on both ends of the main shaft to act on the two eccentric blocks of the main shaft, and the two eccentric blocks cannot generate the phase delay phenomenon, thereby both ends of the slide block simultaneously ascend and descend, the motion precision, the lower dead center precision, the guide precision and the precision of a machined workpiece of the slide block are enhanced, and meanwhile, the service life of the press machine and the service life of the die are prolonged to reduce unnecessary wear.

Description

Forcing press
Technical field
The present invention relates to a kind of forcing press, particularly the forcing press of two driven by motor main shafts.
Background technology
Existing forcing press is seen Fig. 2, generally comprise: a main shaft, two eccentric blocks, a flywheel, a clutch, a motor, flywheel, clutch and motor are positioned at a side of main shaft, the motor-driven flywheel, effect by clutch drives the main shaft rotation, main shaft moves up and down by the effect driving slide block of two eccentric blocks, when main shaft rotated, application point and forcing press that clutch acts on main shaft arrived away from the distance between the point of application of that end of flywheel less than this application point near the distance between the point of application of that end of flywheel like this.
A this motor-driven forcing press, because main shaft is an elastomer, the torsional interaction of flywheel causes two point of applications to have phase difference in two point of applications, produces hysteresis, and the distance between two point of applications is big more, and it is serious more to produce hysteresis.Suppose that main shaft is with direction rotation as shown in Figure 2, flywheel is on the right side of main shaft, the moment of torsion that transmits is T1, and wheel action is respectively a and b in two point of application 5a of the application point of main shaft and forcing press and the distance of 5b, as shown in Figure 2, a<b as seen from the figure, in addition also because main shaft is an elastomer, so when the moment of torsion of flywheel was delivered to two point of applications, two point of applications can produce certain phase difference, shown in Fig. 2 a and 2b view, slide block tilt phenomenon will occur when motion like this.
As known from the above, when slide block drops to bottom dead centre, because a<b and main shaft are elastomers, so the moment of torsion of flywheel is delivered to two eccentric block 5a and 5b, make eccentric block 5a arrive bottom dead centre earlier, arrive bottom dead centre behind the eccentric block 5b, as the right views of Fig. 2 a, when the eccentric block 5a of heavy line arrives bottom dead centre, the eccentric block 5b of fine line is also at shown position, and the no show bottom dead centre, two eccentric blocks produce phase difference α, and just slide block the right arrives bottom dead centre earlier, and arrive bottom dead centre behind the left side, the slider tilt phenomenon will appear like this, the situation shown in Fig. 2 a, and 7 pairs of guide rails 6 of slide block and 12 produce F1 and two power of F2 like this.
When slide block rises to top dead-centre, it is same because a<b and main shaft are elastomers, the moment of torsion of flywheel is delivered to two eccentric block 5a and 5b, make eccentric block 5a arrive top dead-centre earlier, arrive top dead-centre behind the eccentric block 5b, right views as Fig. 2 b, when the eccentric block 5a of heavy line arrived top dead-centre, the eccentric block 5b of fine line was also at shown position, and the no show top dead-centre, two eccentric blocks also produce phase difference α, just slide block the right arrives top dead-centre earlier, and arrives top dead-centre behind the left side, the slider tilt phenomenon occurs, situation shown in Fig. 2 b, same 7 pairs of guide rails 6 of slide block and 12 also produce F1 and two power of F2.
To F1 that guide rail produced and the power of F2, increased the wearing and tearing of guide rail, make guiding accuracy reduce, thereby influence the precision of workpiece that slider tilt makes forcing press bear unbalance loading, influences the service life of other moving component and forcing press and mould.Owing to slide block occurs tilting, big to the friction change of guide rail, the infringement of build-up of pressure machine and mould, the while has also been reduced the precision of product.
When the left side of flywheel at main shaft, also top situation can appear.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of forcing press for the defective of improving above forcing press existence, it adopts two flywheels, two clutches to be installed in the both sides of main shaft respectively, utilization is positioned at two motors while drive shaft of main shaft both sides, slide block is risen simultaneously or descend, and tilt phenomenon can not occur.
The present invention solves the problems of the technologies described above the technical scheme that is adopted:
A kind of forcing press, it comprises: a main shaft, two eccentric blocks, driver, first flywheel and second flywheel, first clutch and second clutch, first flywheel and first clutch are positioned at main shaft one side, second flywheel and second clutch are positioned at the main shaft opposite side, driver drives two flywheels simultaneously and rotates, two flywheels pass through main shaft rotation of effect drive of two clutches, two eccentric blocks are installed on the main shaft, main shaft moves up and down by the effect driving slide block of two eccentric blocks, thereby the patrix that drives the forcing press mould that is installed in the slide block baseplane pumps.
Described driver has two, is hydraulic motor or electro-motor.
Described driver is in flywheel one side that it drove.
Described two eccentric blocks are separately respectively near first flywheel and second flywheel.
Distance between described first flywheel and adjacent eccentric block and second flywheel equate with distance between adjacent eccentric block.
Compared with prior art, the invention has the advantages that:
Adopt two flywheels, two clutches respectively in the both sides of main shaft, drive same main shaft simultaneously, the main shaft two ends are all stressed, two flywheels equate respectively with distance between two point of applications, the motion phase of such two eccentric blocks is just identical, make two point of applications of main shaft can not produce phase difference, just can rise or descend simultaneously in the slide block both sides like this, and tilt phenomenon can not occur.
Description of drawings
Fig. 1 is the structural representation of embodiment of the invention forcing press.
Fig. 2 is the kinematic sketch of existing principal axis of pressing machine and two point of applications.
Fig. 3 is the kinematic sketch of principal axis of pressing machine of the present invention and two point of applications.
The specific embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
Forcing press as shown in Figure 1, comprise a fuselage 10, working plate 11 is installed in the fuselage 10, the counterdie 9 of forcing press mould is installed on the working plate 11, two eccentric block 5a and 5b are installed in respectively on the main shaft 4, and slide block 7 is connected with main shaft 4 with 5b by two eccentric block 5a, and the patrix 8 of forcing press mould is installed on the baseplane of slide block 7, relative with counterdie 9, by the processing of slide block workpiece between the reciprocating motion between top dead-centre and the bottom dead centre is finished upper die and lower die.
The first motor 1a and the second motor 1b are installed in fuselage 10 tops respectively, two motor pulley 13a and 13b are installed in respectively on two motor transmission shafts, by belt 14a and 14b respectively with main shaft on the first flywheel 2a that installs be connected with the second flywheel 2b, first clutch 3a is connected with two flywheels respectively with second clutch 3b, also be connected simultaneously with main shaft 4, the first motor 1a and the second motor 1b, the first flywheel 2a and the second flywheel 2b and first clutch 3a and second clutch 3b lay respectively at the both sides of main shaft 4, as shown in Figure 1.
When operation, the first motor 1a drive pulley 13a, by the belt 14a transmission first flywheel 2a, first flywheel is by the effect drive shaft 4 of first clutch 3a, meanwhile, the second motor 1b drive pulley 13b, by the belt 14b transmission second flywheel 2b, the second flywheel 2b also drives same main shaft 4 by the effect of second clutch 3b, and then the effect of two eccentric block 5a and 5b by forcing press, two eccentric block 5a and 5b pass motion to slide block 7 as two point of applications of forcing press, and slide block 7 is pumped in fuselage guide rail 6 and 12, pump and finish the press work of workpiece thereby drive patrix 8.
This forcing press is to drive a main shaft simultaneously with two motors, and the moment of torsion of flywheel is delivered to two point of applications of forcing press, can not produce phase difference between two point of applications.Suppose that main shaft is with direction rotation as shown in Figure 3, the moment of torsion that flywheel 2a transmits is T1, the moment of torsion that flywheel 2b transmits is T2, flywheel 2a acts on the application point of main shaft and the distance of forcing press first point of application 5a is a1, flywheel 2b acts on the application point of main shaft and the distance of forcing press second point of application 5b is a2, because T1=T2, a1=a2, when the moment of torsion of flywheel transmission arrives two point of applications like this, two point of applications can not produce phase difference, hysteresis occurs, slide block tilt phenomenon can not occur yet when motion.
When slide block dropped to bottom dead centre, two eccentric blocks arrived bottom dead centre simultaneously, and as shown in Figure 3, slide block tilt phenomenon can not occur.When slide block rose the arrival top dead-centre, two eccentric blocks also arrive top dead-centre simultaneously, and were not shown in the figures equally.

Claims (6)

1. forcing press, it is characterized in that: it comprises: a main shaft, two eccentric blocks, driver, first flywheel and second flywheel, first clutch and second clutch, first flywheel and first clutch are positioned at main shaft one side, second flywheel and second clutch are positioned at the main shaft opposite side, driver drives two flywheels simultaneously and rotates, two flywheels pass through main shaft rotation of effect drive of two clutches, two eccentric blocks are installed on the main shaft, main shaft moves up and down by the effect driving slide block of two eccentric blocks, thereby the patrix that drives the forcing press mould that is installed in the slide block baseplane pumps.
2. forcing press as claimed in claim 1 is characterized in that: described driver has two, is hydraulic motor or electro-motor.
3. forcing press as claimed in claim 2 is characterized in that: described driver is in flywheel one side that it drove.
4. as claim 1 or 2 or 3 described forcing presses, it is characterized in that: described two eccentric blocks are separately respectively near first flywheel and second flywheel.
5. as claim 1 or 2 or 3 described forcing presses, it is characterized in that: the distance between described first flywheel and adjacent eccentric block and second flywheel equate with distance between adjacent eccentric block.
6. forcing press as claimed in claim 4 is characterized in that: the distance between described first flywheel and adjacent eccentric block and second flywheel equate with distance between adjacent eccentric block.
CN2009100958024A 2009-01-24 2009-01-24 Press Active CN101480851B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009100958024A CN101480851B (en) 2009-01-24 2009-01-24 Press

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009100958024A CN101480851B (en) 2009-01-24 2009-01-24 Press

Publications (2)

Publication Number Publication Date
CN101480851A CN101480851A (en) 2009-07-15
CN101480851B true CN101480851B (en) 2011-12-14

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Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101890819A (en) * 2010-05-21 2010-11-24 山东神工宏全模具有限公司 Dual connecting rod multiple position press
CN103317071B (en) * 2013-05-23 2015-08-05 西安交通大学 A kind of transmission system of alternating-current servo direct drive type hotdie forging press
CN104148470A (en) * 2014-07-17 2014-11-19 安徽和翔机械科技有限公司 Simple dual-drive punching machine
CN104907583B (en) * 2015-05-25 2018-01-05 湖北富升智能装备股份有限公司 A kind of numerical-control horizontal lathe of linear motor direct drive
CN104924642A (en) * 2015-05-25 2015-09-23 鄢文琼 Multi-connecting-rod type press machine driven by arc and disc-shaped linear motors
CN107138581A (en) * 2017-07-14 2017-09-08 陕西舜洋电子科技有限公司 Combined steel plate forming punching machine mold
CN110053287B (en) * 2019-04-29 2021-05-25 扬力集团股份有限公司 Round steel shell stretching full-servo press

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1662362A (en) * 2002-06-18 2005-08-31 株式会社阿玛达 Servo-drive system and continuous finishing system of press
CN2920635Y (en) * 2006-06-09 2007-07-11 郑良才 Force applying mechanism for press
CN2931088Y (en) * 2006-04-28 2007-08-08 郑良才 Overhead hydraulic cylinder type four-column pressing machine
CN201081006Y (en) * 2007-09-18 2008-07-02 济南铸锻所捷迈机械有限公司 Linkage rod length variable crank connection rod transmission mechanism and punching machine crank connection rod transmission mechanism device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1662362A (en) * 2002-06-18 2005-08-31 株式会社阿玛达 Servo-drive system and continuous finishing system of press
CN2931088Y (en) * 2006-04-28 2007-08-08 郑良才 Overhead hydraulic cylinder type four-column pressing machine
CN2920635Y (en) * 2006-06-09 2007-07-11 郑良才 Force applying mechanism for press
CN201081006Y (en) * 2007-09-18 2008-07-02 济南铸锻所捷迈机械有限公司 Linkage rod length variable crank connection rod transmission mechanism and punching machine crank connection rod transmission mechanism device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP特开2001-62591A 2001.03.13

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Owner name: NINGBO JINGDA MACHINE-ELECTRIC SCIENCE + TECHNOLOG

Free format text: FORMER OWNER: ZHENG LIANGCAI

Effective date: 20100927

C41 Transfer of patent application or patent right or utility model
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Free format text: CORRECT: ADDRESS; FROM: 315033 NINGBO JINGDA ELECTRICAL TECHNOLOGY CO., LTD., NO.191, CHANGYANG ROAD, HONGTANG TOWN, JIANGBEI DISTRICT, NINGBO CITY, ZHEJIANG PROVINCE TO: 315033

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Effective date of registration: 20100927

Address after: 315033 Zhejiang province Ningbo Hongtang town Jiangbei District Changyang Road No. 191

Applicant after: Ningbo Jingda Machine-Electric & Technology Co., Ltd.

Address before: 315033 Zhejiang province Ningbo Hongtang town Jiangbei District No. 191 Changyang Road, Ningbo Jingda Electromechanical Technology Co. Ltd.

Applicant before: Zheng Liangcai

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