CN108859205A - A kind of novel multi link heavy duty servo-pressing machine - Google Patents

A kind of novel multi link heavy duty servo-pressing machine Download PDF

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Publication number
CN108859205A
CN108859205A CN201810721754.4A CN201810721754A CN108859205A CN 108859205 A CN108859205 A CN 108859205A CN 201810721754 A CN201810721754 A CN 201810721754A CN 108859205 A CN108859205 A CN 108859205A
Authority
CN
China
Prior art keywords
rod
novel
heavy duty
plate
transmission
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
Application number
CN201810721754.4A
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Chinese (zh)
Inventor
郑恩来
马习文
彭昭辉
王天宇
林相泽
朱跃
康敏
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Nanjing Agricultural University
Original Assignee
Nanjing Agricultural University
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 Nanjing Agricultural University filed Critical Nanjing Agricultural University
Priority to CN201810721754.4A priority Critical patent/CN108859205A/en
Publication of CN108859205A publication Critical patent/CN108859205A/en
Pending legal-status Critical Current

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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
    • B30B1/10Presses, 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 toggle mechanism
    • B30B1/103Presses, 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 toggle mechanism operated by screw means
    • 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
    • B30B1/10Presses, 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 toggle mechanism
    • B30B1/14Presses, 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 toggle mechanism operated by cams, eccentrics, or cranks

Abstract

The invention discloses a kind of novel multi link heavy duty servo-pressing machines, including rack, sliding block and transmission mechanism;Rack includes set on a pair of of sliding rail between pedestal and top plate;Transmission mechanism is fixed with top plate, and power device drives sliding block to slide between sliding rail by transmission mechanism;Transmission mechanism includes connecting rod;The top of connecting rod is equipped with a pair of of slider-crank mechanism, is mutually mirrored into and is placed at the top of top plate, another termination power device;The bottom end of connecting rod is equipped with a pair of of elbow-bar mechanism, is mutually mirrored into and is placed in top plate bottom, another termination sliding block.Pass through multi-stage speed-reducing torsion increasing device, the pressure of adherence pressure machine;Using double freedom parallel-connection structure, the mode of Dual-Servo Motor parallel drive, the overall power of adherence pressure machine, the problems such as effectively solving synchronous servo motor and move interference and power loss;By antisymmetry formula slider-crank mechanism, the rigidity of structure and stability are improved, improves the mechanical life of press machine and the stability of press machine executive item power, torque output, and there is preferable control performance.

Description

A kind of novel multi link heavy duty servo-pressing machine
Technical field
The present invention relates to a kind of press machines, and in particular to a kind of novel multi link heavy duty servo-pressing machine.
Background technique
Press machine(Including punching machine, hydraulic press)It is a kind of versatility press machine of delicate structure.With widely used, production The features such as high-efficient, press machine can be widely applied to the techniques such as cutting, punching, blanking, bending, riveted and forming.
Press machine divides fly press, crank press and hydraulic press three categories.
Crank press is also known as mechanical press.
Fly press can repeatedly hit forming to biggish forging part without fixed bottom dead centre, can carry out singles, Company beats and adjusting microinching.Hitting power is related with the deflection of workpiece, and hitting power is small when deforming big, deforms small(It is hit Ru cold)When hitting power Greatly.In these areas, it is similar to forging hammer.But its hitting power is closed by rack, therefore stable working, vibrates obtain smaller than forging hammer It is more, do not need very big basis.
The lower part of press machine is equipped with forging liftout attachment.
Fly press has the effect of a variety of metal forming machinerys such as die hammer, mechanical press concurrently, and versatility is strong, can be used for mould The techniques such as forging, punching, drawing.
In addition, fly press structure is simple, manufacture is easy, so being widely used.
But existing press machine has the following disadvantages,
1, servo motor is difficult to meet the needs of high-power, big torque in heavy duty machine tools;
2, the synchronously control error of servo motor;
3, the sideshake of meshing gear will lead between servo motor input terminal there are phase difference in deceleration system, keep synchronous servo electric Machine generates the problems such as movement interference, power loss, thereby reduces the effective fan-out capability of servo-pressing machine.
Summary of the invention
To solve the deficiencies in the prior art, the purpose of the present invention is to provide a kind of structures to have rigidity and stability, holds Row power, torque output have stability, and a kind of novel multi link heavy duty servo-pressing machine with preferable control performance.
In order to achieve the above objectives, the present invention adopts the following technical scheme that:
A kind of novel multi link heavy duty servo-pressing machine, including rack, sliding block and transmission mechanism;The rack includes being set to pedestal A pair of of sliding rail between top plate;Transmission mechanism is fixed with top plate, and power device drives sliding block sliding between sliding rail by transmission mechanism It is dynamic;
The transmission mechanism includes connecting rod;
The top of connecting rod is equipped with a pair of of slider-crank mechanism, is mutually mirrored into and is placed at the top of top plate, another termination power device;
The bottom end of connecting rod is equipped with a pair of of elbow-bar mechanism, is mutually mirrored into and is placed in top plate bottom, another termination sliding block.
Above-mentioned slider-crank mechanism includes the crankshaft that axis is fixed at the top of top plate, and one end of crankshaft is connect by hinged push rod Connecting rod, the other end connect power device by hinged push rod.
Above-mentioned elbow-bar mechanism includes one end by the hinged push rod of same hinged shaft, guide rod and foot lever,
The other end articulated linkage of the push rod, the other end of guide rod are articulated with top plate bottom, the hinged sliding block of the other end of foot lever.
Above-mentioned power device includes motor-driven ball screw, the hinged slider-crank mechanism in the bottom of nut, screw rod by Electrode drive;
The screw rod is equipped with the screw thread intersected.
Further, above-mentioned motor drives screw rod rotation by driving gear set.
Above-mentioned sliding rail is cylinder with interior cavity, and the interior of cavity is respectively equipped with sliding slot to side;
The both ends of sliding block are equipped with the slide bar of matching sliding slot.
Above-mentioned slider bottom connects the fixed matched lower template of template, base top surface.
Above-mentioned transmission mechanism is 2 groups.
The invention has the beneficial effects that:
A kind of novel multi link heavy duty servo-pressing machine of the invention has the following advantages that:
1, the ball screw framework in press machine is a kind of energy-efficient and accurate transmission mechanism, with high efficiency, high-precision Many excellent characteristics such as degree, high speed characteristics and high abrasion resistance, and ball-screw is the pass of various NC Machine Tools Transmission Systems Key components, improve transmission system sensitivity, in terms of play crucial effect.
2, the method synchronous using the synchronization accuracy and mechanical forced that improve servo motor, i.e., it is same using driving gear set Mechanical structure is walked, is played from structure to the phase locked positive action of gear on slow-speed shaft, has been effectively eliminated to watching It takes motor movement interference and power consumption level influence is maximum small(It is main)Gear and intermediate gear(From)Back lash, in turn Between effective solution synchronous servo motor the problems such as movement interference, power loss.
3, double freedom parallel-connection structure, the existing movement of effective solution mechanism with single degree of freedom servo-pressing machine and power The problem of loss.Mechanism application be Dual-Servo Motor parallel drive mode, effective solution synchronous servo motor and dynamic The problems such as interference and power loss.It is antisymmetry formula slider-crank mechanism that the upper half of the linkage mechanism, which uses, and raising finishes Structure rigidity and stability improve the mechanical life of press machine and the stability of press machine executive item power, torque output, and With preferable control performance.
4, by connecting rod, foot lever and several push rods, multi-stage speed-reducing torsion increasing device is formed, the pressure of press machine is greatly improved Power.
5, it is driven using Dual-Servo Motor, improves the overall power of press machine.
Detailed description of the invention
Fig. 1 is a kind of surface structure schematic diagram of novel multi link heavy duty servo-pressing machine of the invention.
Fig. 2 is a kind of structural schematic diagram of novel multi link heavy duty servo-pressing machine of the invention.
Fig. 3 is the cross-sectional view of structural schematic diagram of the invention.
Fig. 4 is the structural schematic diagram of transmission mechanism of the invention.
Attached meaning marked in the figure is as follows:1, shaft, 2, pinion, 3, from gear, 4, nut, 5, silk, 6, push rod, 7, bent Axis, 8, connecting rod, 9, foot lever, 10, sliding block, 11, pedestal, 12, top plate, 13, sliding, 14, slide bar, 15, cylinder, 16, guide rod.
Specific embodiment
Specific introduce is made to the present invention below in conjunction with the drawings and specific embodiments.
A kind of novel multi link heavy duty servo-pressing machine, by rack, sliding block 10 and power device and 2 groups of transmission mechanism groups At.
Rack is made of the cylinder 15 of pedestal 11, top plate 12 and a pair of of support;Cavity, the interior opposite side of cavity are set in cylinder 15 Face is respectively equipped with sliding slot 13(Sliding rail);13 sliding along the chute of slide bar 14 that sliding block 10 passes through both ends.
The main body of transmission mechanism is connecting rod 8, and the top of connecting rod 8 is equipped with a pair of 10 mechanism of crank block being mutually mirrored into, bottom End is equipped with a pair of elbow-bar mechanism being mutually mirrored into.
10 mechanism of crank block is fixed on the crankshaft 7 at 12 top of top plate by axis and is articulated with 6 groups of push rod of 7 both ends of crankshaft At, the other end articulated linkage 8 of side push rod 6, the hinged power device of the other end of other side push rod 6.
Power device includes driving ball screw 5, the hinged crank in the bottom of nut 4 by driving gear set by servo motor The push rod 6 of 10 mechanism of sliding block, screw rod 5 are equipped with the screw thread intersected, convenient for nut 4 in reciprocally swinging on screw rod 5.
Driving gear set is made of the major-minor gear 2 at shaft 1 and both ends, the slave gear of master gear toe joint and 5 end of screw rod 3 toe joints, secondary toe joint motor shaft.
Elbow-bar mechanism is made of push rod 6, guide rod 16 and foot lever 9, and one end is hinged with hole by same hinged shaft, push rod 6 it is another One end articulated linkage 8, the other end of guide rod 16 are articulated with 12 bottom of top plate, the hinged sliding block 10 of the other end of foot lever 9.
When further using, 10 bottom of sliding block connects template, the fixed matched lower template in 11 top surface of pedestal, and workpiece is placed in down In template, after molding, the molding of workpiece pressure-bearing.
Structure driven principle:
Press machine of the invention passes through two servo motor synchronous drives, two I grades of transmission gears(Pinion 2), I grades of driving cogs Wheel(Pinion 2)Pass through transmission shaft(Shaft 1), II grades of transmission gears are driven by gear drive(Master gear)Rotation, thus band Dynamic ball screw turns.
Ball-screw passes through clockwise(Counterclockwise)Drive feed screw nut 4 to the left(To the right)It is mobile.(Feed screw nut 4 is installed On guide rail, for the clear expression of part, attached drawing of the invention conceals associated components), so that double freedom be driven to be driven The movement of mechanism, finally with the upward of movable slider 10(Under)The pushing and lifting movement of press machine are completed in movement.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should Understand, the above embodiments do not limit the invention in any form, all obtained by the way of equivalent substitution or equivalent transformation Technical solution is fallen within the scope of protection of the present invention.

Claims (8)

1. a kind of novel multi link heavy duty servo-pressing machine, which is characterized in that including rack, sliding block and transmission mechanism;The machine Frame includes set on a pair of of sliding rail between pedestal and top plate;Transmission mechanism is fixed with top plate, and power device is driven by transmission mechanism Sliding block slides between sliding rail;
The transmission mechanism includes connecting rod;
The top of connecting rod is equipped with a pair of of slider-crank mechanism, is mutually mirrored into and is placed at the top of top plate, another termination power device;
The bottom end of connecting rod is equipped with a pair of of elbow-bar mechanism, is mutually mirrored into and is placed in top plate bottom, another termination sliding block.
2. a kind of novel multi link heavy duty servo-pressing machine according to claim 1, which is characterized in that the crank block Mechanism includes the crankshaft that axis is fixed at the top of top plate, and by hinged push rod connective pole, the other end passes through hinged for one end of crankshaft Push rod connect power device.
3. a kind of novel multi link heavy duty servo-pressing machine according to claim 1, which is characterized in that the elbow-bar mechanism Including one end by the hinged push rod of same hinged shaft, guide rod and foot lever,
The other end articulated linkage of the push rod, the other end of guide rod are articulated with top plate bottom, the hinged sliding block of the other end of foot lever.
4. a kind of novel multi link heavy duty servo-pressing machine according to claim 1, which is characterized in that the power device Including motor-driven ball screw, the hinged slider-crank mechanism in the bottom of nut, screw rod is by electrode drive;
The screw rod is equipped with the screw thread intersected.
5. a kind of novel multi link heavy duty servo-pressing machine according to claim 4, which is characterized in that the motor passes through Driving gear set drives screw rod rotation.
6. a kind of novel multi link heavy duty servo-pressing machine according to claim 1, which is characterized in that the sliding rail is interior If the cylinder of cavity, the interior of cavity is respectively equipped with sliding slot to side;
The both ends of sliding block are equipped with the slide bar of matching sliding slot.
7. a kind of novel multi link heavy duty servo-pressing machine according to claim 1, which is characterized in that the slider bottom Connect the fixed matched lower template of template, base top surface.
8. a kind of novel multi link heavy duty servo-pressing machine according to claim 1, which is characterized in that the transmission mechanism It is 2 groups.
CN201810721754.4A 2018-07-04 2018-07-04 A kind of novel multi link heavy duty servo-pressing machine Pending CN108859205A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810721754.4A CN108859205A (en) 2018-07-04 2018-07-04 A kind of novel multi link heavy duty servo-pressing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810721754.4A CN108859205A (en) 2018-07-04 2018-07-04 A kind of novel multi link heavy duty servo-pressing machine

Publications (1)

Publication Number Publication Date
CN108859205A true CN108859205A (en) 2018-11-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810721754.4A Pending CN108859205A (en) 2018-07-04 2018-07-04 A kind of novel multi link heavy duty servo-pressing machine

Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109719242A (en) * 2018-12-11 2019-05-07 吉林大学 A kind of double servo-drive four-point multi-link lever press
CN109732967A (en) * 2018-12-27 2019-05-10 西安交通大学 The adjustable two motor drivens toggle link large-tonnage alternating current servo press of height of packing compact

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109719242A (en) * 2018-12-11 2019-05-07 吉林大学 A kind of double servo-drive four-point multi-link lever press
CN109732967A (en) * 2018-12-27 2019-05-10 西安交通大学 The adjustable two motor drivens toggle link large-tonnage alternating current servo press of height of packing compact

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