CN109719242A - A kind of double servo-drive four-point multi-link lever press - Google Patents
A kind of double servo-drive four-point multi-link lever press Download PDFInfo
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- CN109719242A CN109719242A CN201811510685.9A CN201811510685A CN109719242A CN 109719242 A CN109719242 A CN 109719242A CN 201811510685 A CN201811510685 A CN 201811510685A CN 109719242 A CN109719242 A CN 109719242A
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Abstract
A kind of double servo-drive four-point multi-link lever press belong to metal forming machinery technical field, it is therefore intended that solve the problems, such as that servo motor of the existing technology is difficult to meet the needs of high-power big torque, there are the sideshakes of meshing gear in synchronously control error and deceleration system can reduce the effective fan-out capability of servo-pressing machine for servo motor.The present invention includes: fuselage；The downlink sliding block slided up and down positioned at fuselage interior；It is fixed on the epicyclic reduction gear unit of fuselage upper end；The assisted deceleration unit connected with epicyclic reduction gear unit；The power input unit connected with assisted deceleration unit, power input unit are disymmetry formula input structure；The symmetrically arranged two floatings lead sliding block in the front and back connected with power input unit, floating lead slider side wall top is connected with power input unit；And disymmetry Shi Zhouchen mechanism, disymmetry Shi Zhouchen mechanism power intake are connected with floating lead slider side wall lower part, power output end is connected with downlink sliding block, drives downlink sliding block with respect to workbench relative motion or reverse motions.
Description
Technical field
The invention belongs to metal forming machinery technical fields, and in particular to a kind of double servo-drive four-point multi-link lever press.
Background technique
Although Chinese science technical capability, autonomous Research Ability show continuous promotion, the scene constantly to advance.
But the machinery industry in China remains a need for new vitality injection wherein, and this vigor is for large and medium-sized mechanical equipment
For it is the most outstanding be multi link machine driven system innovation, mechanical press because it is with unique function, so
It is widely used in national project field, multi-bar mechanical press is not by numerous of the same race in this lathe major class of press machine
The component of class forms, and each component has feature, requirement, function and the analysis optimization method of respective uniqueness, and in work
Make to have many advantages, such as in aspect, and rod piece number and analysis of the building form all to overall performance and efficiency and later period
It is had decisive impact in control.
So far from the sixties, the multi-bar mechanical press of the different leverages such as six bars, eight bars, ten bars is ground by both domestic and external
The person of studying carefully develops in succession, and type again can be according to single action, double acting, single-point, two point, and 4 points are distinguished, the company of variety classes tool
Linkage has the characteristics that different and limitation.
The problems such as, low efficiency, low precision, small application range small for tradition machinery formula press machine power and servo motor
It is unable to satisfy the technologies neck bottle such as big torque-demand, is set currently, following two large-scale heavy duty servo-pressing machine is widely applied both at home and abroad
Meter mode is resolved:
1, using the design scheme of more servo motor parallel drive multi-connecting-rod mechanisms, the enterprise of scheme application is represented as
Day enterprise little Song and net are wild.
2, using the design scheme of more servo motor parallel drive crank link mechanisms, the enterprise of scheme application is represented
Schuler is looked forward to for the day meeting of enterprise field and moral.
Wherein, the multi-connecting-rod mechanism mechanical gain with higher in scheme one, can reduce the power of servo motor, be applicable in
In big stroke, high-power；Crank link mechanism structure in scheme two is simply conducive to improve servo control performance, but its machine
Tool gain is low, big compared with power required for multi-connecting-rod mechanism under same tonnage.
The large-scale heavy duty servo-pressing machine of either which kind of structure type exist following three kinds it is most commonly seen and difficult
The technical issues of to solve:
1, servo motor is difficult to meet the needs of high-power, big torque in heavy duty machine tools；
2, there are the synchronously control errors of servo motor；
3, the sideshake of meshing gear will lead between servo motor input terminal there are phase difference in deceleration system, makes to synchronize and watch
The problems such as motor generates movement interference, power loss is taken, the effective fan-out capability of servo-pressing machine is thereby reduced.
Summary of the invention
It is an object of the invention to propose a kind of double servo-drive four-point multi-link lever press, solves the prior art and exist
Servo motor be difficult to meet the needs of high-power big torque, there are nibble in synchronously control error and deceleration system for servo motor
The problem of servo-pressing machine effective fan-out capability can be reduced by closing the sideshake of gear.
To achieve the above object, a kind of double servo-drive four-point multi-link lever press of the invention include:
Fuselage, the fuselage include pedestal, the workbench for being fixed on the base surface, are supported on the base upper surface
Bracket, the transmission case body for being fixed on the pedestal upper end and the cover that the transmission case body upper end is set；
Positioned at fuselage interior with respect to the downlink sliding block that bracket slides up and down；
It is fixed on the epicyclic reduction gear unit of the cover upper end；
The assisted deceleration unit connected with epicyclic reduction gear unit；
The power input unit connected with the assisted deceleration unit, the power input unit are disymmetry formula input knot
Structure；
The symmetrically arranged two floatings lead sliding block in the front and back connected with the power input unit, the floating lead are sliding
Block side wall upper part is connected with the power input unit；
And disymmetry Shi Zhouchen mechanism, disymmetry Shi Zhouchen mechanism power intake and the floating lead sliding block
Lower sidewall connection, power output end are connected with the downlink sliding block, drive the downlink sliding block with respect to workbench relative motion
Or reverse motions.
The press machine further includes two buffering pressure-keeping units, and the downlink sliding block passes through two buffering pressure-keepings by both ends
The relatively described bracket of unit slides up and down；Each buffering pressure-keeping unit includes:
Lead connecting rod, the side wall sliding fit of the lead connecting rod two end and two opposite brackets, the downlink slider end
The connection ear muff in portion is on the lead connecting rod；
Fixed hydraulic cylinder on the workbench, the hydraulic cylinder output end are fixedly connected with the lead connecting rod；
And it is fixed on the foil gauge in disymmetry Shi Zhouchen mechanism, the foil gauge and the hydraulic cylinder are electrically connected
It connects, according to the disymmetry Zhou Chen mechanism of strain measurement by pulling force situation, the piston rod for controlling hydraulic cylinder stretches out, until pulling force is
Zero.
The foil gauge includes four groups eight.
The epicyclic reduction gear unit include two, each epicyclic reduction gear unit be include planetary gear and servo
The integral structure of motor；The assisted deceleration unit includes being arranged symmetrically arranged two groups in transmission case, and every group of auxiliary subtracts
Fast unit includes:
Gear shaft, the gear shaft are connected by gear drive with an epicyclic reduction gear unit；
Two symmetrically arranged ball-screws, two ball-screws are real by gear drive and gear shaft cooperation
Now move synchronously；
And the screw slider being threadedly coupled with two ball-screws.
The power input unit, which includes that packet front and back is symmetrically symmetrical, includes four groups, and every group includes:
One end of upper boom one, the upper boom one passes through sliding block pin shaft and a silk positioned at same vertical plane the same side
Thick stick sliding block is hinged；
One end and the hinged upper boom two of one other end of the upper boom, two middle position of upper boom is by having strong market potential one and described
Transmission case body is hinged；
One end and the hinged upper boom three of two other end of the upper boom, three other end of upper boom and are located on same vertical plane
The floating lead sliding block it is hinged；
Each group of screw slider, Shang bar one, upper boom two, upper boom three, the lead that can float sliding block and transmission case body lower plate
Constitute antisymmetry formula double-crank mechanism；The whole front and back that power input unit described in four groups and two floating lead sliding blocks are constituted is right
Claim, bilateral symmetry.
Disymmetry Shi Zhouchen mechanism includes four groups of output mechanisms, and every group of output mechanism includes:
Lower beam one, one end of the lower beam one and floating lead sliding block on same vertical plane are hinged；
The hinged lower beam three of the other end of one end and the lower beam one, the other end of the lower beam three and passes through two Hes of having strong market potential
The downlink sliding block is hinged, and one group of two foil gauge is fixed on the lower beam three；
And lower beam two, the lower plate of described two one end of lower beam and the transmission case body is hinged, the other end and lower beam one and
Three hinged place of lower beam is hinged.
The invention has the benefit that the present invention provides intermediate gear synchronization mechanism structure, play from structure to low
The phase locked positive action of left and right master gear on fast axis, has effectively eliminated to servo motor movement interference and power loss
Degree influences the back lash of maximum pinion gear and intermediate gear, and then moves between effective solution synchronous servo motor dry
Relate to, power loss the problems such as.
The present invention provides double freedom parallel-connection structure simultaneously, and effective solution mechanism with single degree of freedom servo-pressing machine exists
Movement and power loss the problem of.What this press machine was applied is the mode of Dual-Servo Motor parallel drive, and effective solution is same
The problems such as walking servo motor and dynamic interference and power loss.
The upper half of linkage mechanism provided by the invention uses antisymmetry formula double crank slider mechanism, and lower half is using double right
Cheng Shizhouchen mechanism, the place of being vertically connected with are floating lead sliding block, improve the rigidity of structure and stability of transmission system, improve
The mechanical life of press machine and the stability of press machine executive item power, torque output, and there is preferable control performance.?
In the present invention, antisymmetry formula double crank slider mechanism has height compared with disymmetry Shi Zhouchen mechanism for conventional press mechanism
The mechanical gain of effect, and there is good rigidity and stability.This paper institute in the identical situation of servo-pressing machine important parameter
Driving torque needed for the mechanism of design is compared with being minimum for crank link mechanism, six bar mechanism, eight-bar linkage.Efficiently
Reduce driving motor power, and then very good solution servo motor in heavy duty machine tools is difficult to meet high-power, big torque
Demand technical problem.
The buffering pressure-keeping unit of symmetrical expression differential connection provided by the invention, hydraulic cylinder, which is matched, closes four groups of eight foil gauge energy
Well, quickly, it is stable play the role of slow pressure and pressure maintaining, can effectively guarantee that press machine is doing stretching or one-stroke
Pressure when shock pressure experiments is stablized, and guarantees the validity of experiment, can be effectively less or eliminates because press machine stops working
When transmission mechanism bring the pressure of ball-screw side wall, guarantee the service life of ball screw, keep the high-precision of press machine.
Simultaneously mechanism provided by the invention have efficient bearing capacity, it is easy to repair, convenient for manufacture with safeguard, can be effective
Raising mechanical mechanism service life, servo motor can be effectively reduced driving power, can improve synchronous servo motor control essence
The operating accuracy for spending and then improving lathe is adapted in the mechanical equipment of large-scale, heavily loaded, big stroke, ultraprecise.
Detailed description of the invention
Fig. 1 is a kind of double servo-drive four-point multi-link lever press overall structure diagrams of the invention；
Fig. 2 is a kind of double servo-drive four-point multi-link lever press structural front views of the invention；
Fig. 3 is a kind of double servo-drive four-point multi-link lever press the structure left view of the invention；
Fig. 4 is a kind of double servo-drive four-point multi-link lever press front sectional view of the invention；
Fig. 5 is hydraulic control system in a kind of double servo-drive four-point multi-link lever press of the invention；
Wherein: 1, fuselage, 101, pedestal, 102, workbench, 103, bracket, 104, transmission case body, 105, cover, 2, downlink
Sliding block, 3, epicyclic reduction gear unit, 4, assisted deceleration unit, 401, gear shaft, 402, ball-screw, 403, screw slider,
404, collar, 5, power input unit, 501, upper boom one, 502, upper boom two, 503, upper boom three, 504, have strong market potential one, 505, sliding block
Pin shaft, 506, sliding block bushing, 6, floating lead sliding block, 7, disymmetry Shi Zhouchen mechanism, 701, lower beam one, 702, lower beam two,
703, lower beam three, 704, have strong market potential two, 8, buffering pressure-keeping unit, 801, lead connecting rod, 802, hydraulic cylinder, 803, foil gauge, 804,
Electromagnetic hydraulic valve one, 805, electromagnetic hydraulic valve two, 806, accumulator, 807, pressure switch, 808, overflow valve, 809, unidirectional
Valve, 810, hydraulic pump.
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.
Referring to attached drawing 1- attached drawing 4, a kind of double servo-drive four-point multi-link lever press of the invention include:
Fuselage 1, the fuselage 1 includes pedestal 101, the workbench 102 that is fixed on 101 upper surface of pedestal, be supported on it is described
The bracket 103 of 101 upper surface of pedestal, the transmission case body 104 for being fixed on 103 upper end of bracket and setting are in the transmission case
The cover 105 of 104 upper end of body；
The downlink sliding block 2 that opposite bracket 103 slides up and down positioned at 1 inside of fuselage；
It is fixed on the epicyclic reduction gear unit 3 of 105 upper end of cover；
The assisted deceleration unit 4 connected with epicyclic reduction gear unit 3；
With the power input unit 5 of the assisted deceleration unit 4 connection, the power input unit 5 is that disymmetry formula is defeated
Enter structure；
With the symmetrically arranged two floating leads sliding block 6 in front and back of the power input unit 5 connection, the floating lead
6 side wall upper part of sliding block and the power input unit 5 connection；
And disymmetry Shi Zhouchen mechanism 7,7 power intake of disymmetry Shi Zhouchen mechanism and the floating lead are sliding
The connection of 6 lower sidewall of block, power output end and the downlink sliding block 2 connection drive the opposite workbench 102 of the downlink sliding block 2
Relative motion or reverse motions.
The press machine further includes two buffering pressure-keeping units 8, and the downlink sliding block 2 is protected by both ends by two bufferings
The pressure relatively described bracket 103 of unit 8 slides up and down；Each buffering pressure-keeping unit 8 includes:
Lead connecting rod 801, the side wall sliding fit at 801 both ends of lead connecting rod and two opposite brackets 103, under described
The connection ear muff of 2 end of row sliding block is on the lead connecting rod 801；
The hydraulic cylinder 802 being fixed on the workbench 102,802 output end of hydraulic cylinder and the lead connecting rod 801
It is fixedly connected；
And it is fixed on the foil gauge 803 in disymmetry Shi Zhouchen mechanism 7, the foil gauge 803 and described hydraulic
Cylinder 802 is electrically connected, and the disymmetry Zhou Chen mechanism detected according to foil gauge 803 is controlled the piston rod of hydraulic cylinder 802 by pulling force situation
It stretches out, until pulling force is zero.
Buffering pressure-keeping unit described in two is matched to close by the hydraulic cylinder 802 of symmetrical differential connection is mounted on disymmetry formula
Four groups of eight foil gauges 803 composition in Zhou Chen mechanism 7, the control input signal of hydraulic cylinder 802 are the signal that foil gauge provides,
Both the signal of each electromagnetic valve body strained offer was regulated and controled in the power source, accumulator and hydraulic circuit of hydraulic system,
It can effectively guarantee that pressure of the press machine when doing stretching or one-stroke shock pressure experiments is stablized, guarantee the validity of experiment,
The service life for guaranteeing ball screw, keeps the high-precision of press machine.
The foil gauge 803 includes four groups eight.
The epicyclic reduction gear unit 3 includes two, each epicyclic reduction gear unit 3 be include planetary gear and watching
The integral structure of motor is taken, wherein planetary gear is three-level reduction gearbox；The assisted deceleration unit 4 includes being arranged in transmission case
Interior symmetrically arranged two groups, every group of assisted deceleration unit 4 include:
Gear shaft 401, the gear shaft 401 are multi-diameter shaft, are provided with input gear on axis on relatively thin shaft part, and
By 404 axial restraint of collar, the power output gear on axis in input gear and epicyclic reduction gear unit 3 is engaged；
Two symmetrically arranged ball-screws 402 are provided with lead screw input gear, two silks on each ball-screw 402
Thick stick input gear and the on-axis output gear being fixed on gear shaft 401 engage, and realize that two ball-screws 402 move synchronously；
And the screw slider 403 being threadedly coupled with two ball-screws 402.
Power source is epicyclic reduction gear unit 3, and small modulus can be selected compared with other mechanical reduction gear planetary gears；Ginseng
Steady, reliable operation is mostly moved in turn with the number of teeth engaged, the service life extends, convenient for safeguarding；It can satisfy the biography compared with large transmission ratio
It is dynamic, and higher torque can be transmitted, it is suitable in large-scale heavy duty lathe.The epicyclic reduction gear unit 3 is planet tooth
One is made with servo motor in wheel, which can effectively eliminate meshing backlass but also overcome inertia force, so that control essence
Degree and working efficiency are obviously improved.
Supplementary speed reduction means is symmetrical two-stage gear reduction case, main function be by the method for mechanical forced and
The number of servomotor is reduced to improve the control precision of servomotor, and then realizes Ultra-precision Turning.Wherein power source
I.e. epicyclic reduction gear unit 3 is connected with supplementary speed reduction means, imparts power to power input connecting rod by ball-screw 402
Mechanism imparts power to output kinematic chain in the further transmitting by lead sliding block, final that downlink sliding block 2 is driven to move,
Realize punching press.
The power input unit 5, which includes that packet front and back is symmetrically symmetrical, includes four groups, and every group includes:
Upper boom 1, one end of the upper boom 1 is by sliding block pin shaft 505 and positioned at same vertical plane the same side
One screw slider 403 is hinged, and junction is provided with sliding block bushing 506；
One end and the hinged upper boom 2 502 of one 501 other end of the upper boom, 2 502 middle position of upper boom passes through length
Pin 1 and the transmission case body 104 are hinged；
One end and the hinged upper boom 3 503 of 2 502 other end of the upper boom, 3 503 other end of upper boom and are located at same
The floating lead sliding block 6 on one vertical plane is hinged；
The whole front and back that power input unit 5 described in four groups and two floating lead sliding blocks 6 are constituted is symmetrically, symmetrically；
Each group of screw slider 403, upper boom 1, upper boom 2 502, upper boom 3 503, the lead that can float sliding block 6 and transmission case body
104 lower plates constitute antisymmetry formula double-crank mechanism；Left crank block is hinged with ball-screw 402, receives the input of power,
Right crank block is hinged with the lead sliding block 6 that can float, and power is handed on.The lead sliding block 6 that floats is to utilize
The harmony of mechanism solves interference problem inter-agency as caused by error.Upper boom 1, upper boom 2 502 and upper boom 3 503 are equal
For duplex, that is, upper boom 1, upper boom 2 502 and upper boom 3 503 include two rod pieces being oppositely arranged.
The input direction and sequence of power are as follows: screw slider 403, upper boom 1, upper boom 2 502, upper boom 3 503 and floating
Dynamic lead sliding block 6.
Disymmetry Shi Zhouchen mechanism 7 includes four groups of output mechanisms, and every group of output mechanism includes:
Lower beam 1, one end of the lower beam 1 and floating lead sliding block 6 on same vertical plane are hinged；
The hinged lower beam 3 703 of the other end of one end and the lower beam 1, the other end of the lower beam 3 703 and logical
Cross have strong market potential 2 704 and the downlink sliding block 2 it is hinged, one group of two foil gauge 803 is fixed on the lower beam 3 703；
And lower beam 2 702, the lower plate of described 2 702 one end of lower beam and the transmission case body 104 is hinged, the other end with
Lower beam 1 and 3 703 hinged place of lower beam are hinged.
Lower beam 3 703 is hinged with downlink sliding block in the disymmetry Shi Zhouchen mechanism, lower beam 1 and floating lead
Sliding block 6 is hinged, and wherein lower beam 1, lower beam 2 702 and lower beam 3 703 are duplex, increases the carrying energy of mechanism
Power, at the same can make downlink sliding block 2 speed slows down, acceleration is held essentially constant, keeps punching press more steady.
The outbound course and sequence of power are as follows: floating lead sliding block 6, lower beam 1, lower beam 2 702, lower beam 3 703, under
Row sliding block 2.
Referring to attached drawing 5, symmetrical buffering pressure-keeping unit in the present invention is by 802 groups of hydraulic cylinder of symmetrical differential connection
At with four groups of eight foil gauges 803 being mounted on drive link are closed, the control input signal of hydraulic cylinder 802 is foil gauge
803 signals provided, both strained of each electromagnetic valve body in the power source, accumulator 806 and hydraulic circuit of hydraulic system
803 signals provided are regulated and controled, and can effectively guarantee that pressure of the press machine when doing stretching or one-stroke shock pressure experiments is steady
It is fixed, guarantee the validity of experiment, guarantees the service life of ball screw, keep the high-precision of press machine.
Hydraulic circuit includes the hydraulic cylinder 802, electromagnetic hydraulic valve 1, electromagnetic hydraulic valve 2 805, accumulation of energy of differential connection
Device 806, pressure switch 807, overflow valve 808, check valve 808, hydraulic pump 810 and fluid pressure line.
Hydraulic circuit working principle: this hydraulic circuit electromagnetic hydraulic pressure when not receiving from the signal that foil gauge 803 provides
The power-off of valve 1, electromagnetic hydraulic valve 2 805 are powered, overflow valve 808 is in closed state.Electromagnetic liquid when press machine stops working
Pressure valve 1 receives the signal provided from foil gauge 803 energization and is attracted, and electromagnetic hydraulic valve 2 805 receives to come from foil gauge 803
The powerdown signal of offer disconnects, and the hydraulic oil of hydraulic pump 810, which flows through electromagnetic hydraulic valve 1 by check valve 809, makes differential company
The hydraulic cylinder 802 connect works, and is rapidly achieved stable holding state, and the receiving of electromagnetic hydraulic valve 1 comes from after reaching stable state
The powerdown signal that foil gauge 803 provides disconnects, and electromagnetic hydraulic valve 2 805 receives the signal provided from foil gauge 803 energization and inhales
It closes, plays the role of fixed support, it is contemplated that the liquid that the oil leak situation of hydraulic circuit, the i.e. hydraulic cylinder 802 of differential connection provide
When insufficient pressure, electromagnetic hydraulic valve 1 receives the signal provided from foil gauge 803 energization and is attracted, and is carried out by accumulator 806
Pressure maintaining is stablized in repairing accumulation of energy.If reaching the minimum value of pressure switch 807, warning reminding.Electromagnetic hydraulic valve 1 and electricity
Magnetic hydraulic valve 2 805 receives to come powerdown signal disconnection from hydraulic pump 810 to 806 fuel feeding of accumulator, if reaching pressure switch
807 maximum value electromagnetic hydraulic valve 1 and electromagnetic hydraulic valve 2 805 receives to carry out signal energization actuation.
When press machine works, preferably punching press can be carried out buffering and then reached when downlink sliding block 2 is up to bottom dead centre
Effect.Buffering course: when pressure reaches certain value, it is logical to receive the signal provided from foil gauge 803 for electromagnetic hydraulic valve 1
Electricity is attracted, and electromagnetic hydraulic valve 2 805 receives the powerdown signal provided from foil gauge 803 and disconnects, and is played buffer function, is worked as pressure
When beyond hydraulic circuit system pressure peak, overflow valve 808 is opened, and plays the role of pressure maintaining protection system circuit.
Claims (6)
1. a kind of double servo-drive four-point multi-link lever press, comprising:
Fuselage (1),
The downlink sliding block (2) that bracket (103) in fuselage (1) internal opposite fuselage (1) slides up and down；
It is characterized by:
The fuselage (1) includes pedestal (101), the workbench (102) for being fixed on pedestal (101) upper surface, is supported on the bottom
The bracket (103) of seat (101) upper surface, the transmission case body (104) for being fixed on the bracket (103) upper end and setting are described
The cover (105) of transmission case body (104) upper end；
The press machine further include:
It is fixed on the epicyclic reduction gear unit (3) of the cover (105) upper end；
With the assisted deceleration unit (4) of epicyclic reduction gear unit (3) connection；
With the power input unit (5) of the assisted deceleration unit (4) connection, the power input unit (5) is disymmetry formula
Input structure；
With the symmetrically arranged two floating leads sliding block (6) in front and back of the power input unit (5) connection, the floating lead
Sliding block (6) side wall upper part and the power input unit (5) connection；
And disymmetry Shi Zhouchen mechanism (7), disymmetry Shi Zhouchen mechanism (7) power intake and the floating lead are sliding
The connection of block (6) lower sidewall, power output end and the downlink sliding block (2) connection, drive the downlink sliding block (2) is opposite to work
Platform (102) relative motion or reverse motions.
2. a kind of double servo-drive four-point multi-link lever press according to claim 1, which is characterized in that the pressure
Machine further includes two buffering pressure-keeping units (8), and the downlink sliding block (2) passes through two buffering pressure-keeping unit (8) phases by both ends
The bracket (103) is slided up and down；Each buffering pressure-keeping unit (8) includes:
Lead connecting rod (801), the side wall sliding fit at lead connecting rod (801) both ends and two opposite brackets (103) are described
The connection ear muff of downlink sliding block (2) end is on the lead connecting rod (801)；
The hydraulic cylinder (802) being fixed on the workbench (102), hydraulic cylinder (802) output end and the lead connecting rod
(801) it is fixedly connected；
And it is fixed on the foil gauge (803) in disymmetry Shi Zhouchen mechanism (7), the foil gauge (803) and the liquid
Cylinder pressure (802) electrical connection controls hydraulic cylinder (802) according to the disymmetry Zhou Chen mechanism of foil gauge (803) detection by pulling force situation
Piston rod stretch out, until pulling force is zero.
3. a kind of double servo-drive four-point multi-link lever press according to claim 2, which is characterized in that the strain
Piece (803) includes four groups eight.
4. a kind of double servo-drive four-point multi-link lever press, feature described in any one of -3 according to claim 1
Be, the epicyclic reduction gear unit (3) include two, each epicyclic reduction gear unit (3) be include planetary gear and
The integral structure of servo motor；The assisted deceleration unit (4) includes being arranged symmetrically arranged two groups, every group in transmission case
Assisted deceleration unit (4) includes:
Gear shaft (401), the gear shaft (401) pass through gear drive and epicyclic reduction gear unit (3) connection；
Two symmetrically arranged ball-screws (402), two ball-screws (402) pass through gear drive and the gear shaft
(401) cooperation is realized and is moved synchronously；
And the screw slider (403) being threadedly coupled with two ball-screws (402).
5. a kind of double servo-drive four-point multi-link lever press according to claim 4, which is characterized in that the power
Input unit (5), which includes that packet front and back is symmetrically symmetrical, includes four groups, and every group includes:
One end of upper boom one (501), the upper boom one (501) by sliding block pin shaft (505) and is located at same vertical plane the same side
A screw slider (403) it is hinged；
One end and the hinged upper boom two (502) of the upper boom one (501) other end, upper boom two (502) middle position passes through
Have strong market potential one (504) and the transmission case body (104) is hinged；
One end and the hinged upper boom three (503) of the upper boom two (502) other end, upper boom three (503) other end and are located at
The floating lead sliding block (6) on same vertical plane is hinged；
Each group screw slider (403), Shang bars one, upper boom two (502), upper boom three (503), the lead that can float sliding block (6) and
Transmission case body (104) lower plate constitutes antisymmetry formula double-crank mechanism；Power input unit (5) described in four groups and two floatings are led
The whole front and back that journey sliding block (6) is constituted is symmetrically, symmetrically.
6. a kind of double servo-drive four-point multi-link lever press, feature described in any one of -3 according to claim 1
It is, disymmetry Shi Zhouchen mechanism (7) includes four groups of output mechanisms, and every group of output mechanism includes:
Lower beam one (701), one end of the lower beam one (701) and floating lead sliding block (6) on same vertical plane are hinged；
The hinged lower beam three (703) of the other end of one end and the lower beam one (701), the other end of the lower beam three (703) and
By having strong market potential two (704) and the downlink sliding block (2) hingedly, one group of two foil gauge is fixed on the lower beam three (703)
(803)；
And lower beam two (702), the lower plate of described lower beam two (702) one end and the transmission case body (104) is hinged, the other end
It is hinged with lower beam one (701) and lower beam three (703) hinged place.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110586830A (en) * | 2019-09-29 | 2019-12-20 | 叶晓丹 | Forging and pressing machine with abutting pressure dividing structure |
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