CN1805806A - Transfer device on a press - Google Patents
Transfer device on a press Download PDFInfo
- Publication number
- CN1805806A CN1805806A CN200480016558.3A CN200480016558A CN1805806A CN 1805806 A CN1805806 A CN 1805806A CN 200480016558 A CN200480016558 A CN 200480016558A CN 1805806 A CN1805806 A CN 1805806A
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- China
- Prior art keywords
- transmitter
- external driver
- forcing press
- driver device
- workpiece
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/02—Advancing work in relation to the stroke of the die or tool
- B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
- B21D43/05—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work specially adapted for multi-stage presses
- B21D43/055—Devices comprising a pair of longitudinally and laterally movable parallel transfer bars
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
Abstract
The invention relates to a device and a method for gradually conveying workpieces in a longitudinal direction from a receiving station through at least one processing station of the press with the aid of conveying means for the workpieces, which are moved in cycles and in synchrony with the movement of the press in the longitudinal direction as well as back and forth in a direction extending substantially perpendicular to the longitudinal direction in order to grip or release the workpieces. The conveying means are moved in the longitudinal direction via an external drive unit that is merely synchronized with the movement of the press. In order to obtain a particularly flexible mode of operation at high numbers of lifting movements in such a device, the motor-powered external drive unit is mechanically coupled to the conveying means (4) in such a way that the conveying means (4) can be moved back and forth without reversing the direction of rotation of the external drive unit (23, 35).
Description
Technical field
The present invention relates to a kind of device on forcing press and method that workpiece is longitudinally passed at least one processing stations of forcing press from receiving station with workpiece transmitter step-by-step movement transmission of being used for, transmitter and forcing press are in period of motion longitudinally and synchronously move back and forth and be used for one and laterally the catching and unclamp workpiece again of its perpendicular.Here transmitter moving through longitudinally one only carried out with the external driver device of the synchronized movement of forcing press.Transmitting device is compared with so-called progressive compound die and be it is characterized in that, part to be formed in forcing press is at first for example for example cut off by cutting or stamping-out by an endless belt in the receiving station zone, then with the motion of endless belt irrespectively and mostly and it vertically transmit, pass at least one processing stations of forcing press.Usually forcing press is equipped with processing stations or the one-tenth form class that a plurality of orders are connected.Part to be formed becomes form class to be transferred to another by the endless belt of sending workpiece own from one and becomes form class when the step-feeding compound die on the contrary.
Background technology
In principle can be from two kinds of drive systems for vertical driving of transmission system.
At first should speak of the drive unit of pure machinery.Here the driving of conveyer is undertaken by the transmission case mechanical type with a worm gear and a lever, and wherein transmission case is by cog belt, and chain or axle are directly driven by the eccentric shaft of forcing press.Typical circulation angle is in this mechanical type transmission case:
Feed angle=120 °
Angle of repose after sending to=60 °
Return angle=120 °
Angle of repose after the return=60 °
Selection should be mentioned that the driving by an in check external system (for example servomotor/linear motor) as another kind.The driving of lengthwise movement is here undertaken by the rotor of the servomotor of system's (ball screw of the cog belt/band longitudinal rail of band longitudinal rail) of driving one generation lengthwise movement.Selectively lengthwise movement also can directly be produced by a straight line motor.
If compare these two kinds of basic schemes, can list following excellent, shortcoming so:
Mechanically operated advantage:
Motion flow process mechanical mode is in accordance with regulations carried out, and it copies the shape of worm gear
Can realize high acceleration (up to 25g)
Hysteresis error does not appear
The motion flow process is carried out synchronously with press motion at any time
Do not interfere danger with mould, because motion assembly mechanical couplings.
Mechanically operated shortcoming:
Motion flow process (sending circulation to) can not be changed
Drives structure complexity from the forcing press to the transmission case
The position of transmission case is determined by the output shaft of forcing press
Feed path is fixed.
The advantage of servo-drive:
Send circulation to and can select (software) flexibly
Can be installed on the forcing press flexibly
On forcing press, can carry out different circulations
Feed path can change.
The shortcoming of servo-drive:
Acceleration is restricted
Hysteresis error during the motion flow process and overshoot
The beat number is restricted
Moving-mass is restricted with the ratio of number of stroke and feed
Driving may be interrupted
In order to make servomotor can drive its own wt, it needs more energy.
For example by the known a kind of mechanical transmission device that is similar to described type of EP 0490821A1 with a pair of transmission pole as the workpiece transfer device.The driving of there transmission pole by with the mechanical connection of the movement parts of forcing press, and be the motion by picking up the press off-centering axle via a transmission case longitudinally and carry out in the motion of laterally picking up press ram by means of the control track, can be implemented in the high-stroke number in 300 stroke range of per minute thus.For in the particular application of box jar (Dosenbereich) even reach 700 strokes of per minute.Can also prevent the interference of diel and transmitter fully by mechanical connection.
By EP 0504098A1 and the known a kind of substantially similar device of EP 0694350A1, wherein transmission pole and workpiece also superpose and one move both vertically here.
Known in addition such transmitting device, wherein the driving of transmitter realizes by one or more external driver device under the situation that adopts servomotor, hydraulic means, pneumatic means, linear motor or the like, and they are with the synchronized movement of diverse ways usefulness signalling technique and press ram extremely.This external driver device is more cheap usually, but also can be used as above-mentioned mechanical connection neatly, but can not reach so high number of stroke with them.Here the present limit is a per minute 50-150 stroke.When drive unit interrupts, also there is the danger that interferes between stamping die and the transmitter, brings the result of breaking-up mostly.
WO-A-00/20305 has introduced another kind of possible scheme.Here introduced a kind of device that workpiece is longitudinally passed through at least one processing stations of forcing press from the transmission of receiving station step-by-step movement with the workpiece transmitter, transmitter synchronously longitudinally moves back and forth with press ram periodically, and along the traverse motion vertical, so that catch and unclamp workpiece again with it.Here transmitter driving is longitudinally only carried out with the synchronous external driver device of the eccentric shaft of signalling technique and forcing press by one.And be used for drawing along the direct mechanical connection that moves through press ram of the transmitter that laterally unclamps workpiece.Reaching pure mechanical actuation device by this type of drive combines with the economy of external driver device and bigger flexibility in the advantage of reliability and high-stroke number.But its shortcoming is to compare with the lengthwise movement of pure machinery because the servomotor that is adopted can only reach the lower number of stroke that is significantly less than 300 even 250 strokes/minute.
Summary of the invention
Therefore the objective of the invention is, recommend a kind of improved device that on forcing press, is used for step-by-step movement transmission workpiece, it particularly can reach the high-stroke number in the number of stroke scope of pure mechanical lengthwise movement, yet has the flexibility of the device when adopting external driver device on the other hand.Here particularly relate to a kind of device that on forcing press, workpiece is longitudinally passed through at least one processing stations of forcing press from the transmission of receiving station step-by-step movement with the workpiece transmitter, transmitter longitudinally moves back and forth with the synchronized movement of forcing press ground periodically, and along vertical with it basically traverse motion, to catch and to unclamp workpiece again, wherein transmitter moving through longitudinally one only carried out with the external driver device of the synchronized movement of forcing press.
The realization of this purpose reaches by such method, and promptly electronic external driver device is mechanically connected on the transmitter in this wise, makes the reciprocating motion that can oppositely realize transmitter without the rotation of external driver device.
Usually adopting external driver device, particularly its main problem is during servomotor, because the motion that moves forward and backward that will facilitate is restricted the acceleration or the number of stroke that can reach.That is to say that this servomotor that back and forth needs respectively brakes or quicken (stop and go) apace, and because there is big moving-mass usually in this device, therefore possible acceleration is compared with pure mechanical conceptual and is restricted.Therefore core of the present invention is that the mechanical connection of electronic external driver device is arranged on the transmitter, and its allows external driver device not rotate oppositely operation, thereby avoids otherwise essential acceleration, this acceleration is reduced or puts into and quickens the little section of quality.Here original rotation oppositely produces by being transformed into reciprocating mechanical gear accordingly, and external driver device, and servomotor normally can be for example moves under the situation of constant rotary speed and the direction of rotation that remains unchanged in sending to.Obtain many unexpected advantages by this structure, can make up the advantage of pure mechanical actuation device and pure external driver device basically.
Therefore the feature of first kind of preferred implementing form is that the mechanical connection between external driver device and the transmitter is designed to mechanical gear, especially preferably makes the mechanical type cam gear.For example can adopt worm gearing.
The feature of another kind of preferred implementing form is that the motion that moves through a step-by-step movement rotary angle transmitter and forcing press of electronic external driver device is the synchronized movement of the eccentric shaft of forcing press particularly.Synchronously in fact can reach the stroke speed that is similar to pure mechanical transmission device by this of external driver device and forcing press.
A kind of particularly preferred form of implementation of the present invention has such device, and it allows electronic external driver device according to sending circulation to different rotating speed operations.This inherent flexibility of external driver device allows to change feed angle in addition, thereby processes higher member in forcing press, and does not need machinery refitment.Therefore particularly can not make mechanical alteration only changes the transmitter lengthwise movement in certain limit by the rotating speed of control external driver device speed.Do not need now reverse by the servomotor direction of rotation of prior art requirements, that is when high-stroke is counted.
The feature of the another kind of preferred implementing form of apparatus of the present invention is, the direct mechanical that moves through that transmitter unclamps workpiece along horizontal being used for connects from the moving of forcing press and draws.Transmitter catches moving of workpiece can be undertaken by external driver device equally along horizontal being used for, wherein also can be similar to vertical drive unit sometimes with electronic external driver device and mechanical gear combination, that is can not change the direction of rotation of external driver device.This itself is in the cards, that is also can realize laterally driving with the structure-irrelevant ground of vertical drive unit sometimes, and this is novel in creationary.
The feature of the another kind of preferred implementing form of this device is, is used for drawing from the moving of press ram by a mechanical cam system along the driving of the transmitter that laterally unclamps workpiece.Secondly transmitter preferably includes driven rod, and they longitudinally extend in the both sides of receiving station and at least one processing stations, and they preferably are furnished with the clamper that is used for workpiece.
Other preferred forms of implementation of apparatus of the present invention illustrate in the dependent claims.
The present invention relates in addition a kind of be used on the forcing press particularly preferably in the situation that adopts said apparatus under the method for step-by-step movement transmission workpiece.Here longitudinally pass the transmission assurance of at least one processing stations of forcing press from receiving station with the workpiece transmitter, transmitter longitudinally periodically and and the reciprocating motion of the synchronized movement of forcing press ground, and along with the traverse motion of its perpendicular, to catch and to unclamp workpiece again.Transmitter moving through longitudinally one only carried out with the external driver device of the synchronized movement of forcing press in addition.Here the reciprocating motion according to transmitter of the present invention is driven by electronic external driver device, and external driver device needn't be reversed.This special mechanical gear that adopts, transmission case are produced by rotatablely moving of external driver device and move back and forth.
Here the feature of first kind of preferred method of operation is, electronic external driver device is moved under the situation that rotary speed and direction remain unchanged.Usually the characteristic curve of transmission case is best for this constant operation.But select also especially preferably can move aforesaid device in this wise as another kind now, promptly basis is sent the external driver device of circulation with variable rotary speed operation of electrically driven under the situation that direction of rotation preferably remains unchanged.The flexibility of external driver device so longitudinally just can combine with the high-stroke number of pure mechanical transfer longitudinally.Here such mode is preferred especially, and promptly the rotary speed of external driver device changes in the section (so-called static segment) that the transmitter of sending circulation to does not travel longitudinally.In other sections, that is preferably remain unchanged in the speed of revolving of sending stroke and backstroke inside and outside drive unit to, wherein especially for example when sending to high constant rotary speed operation.In the section that the transmitter of sending circulation to does not travel longitudinally, rotary speed is slowed down, then rotary speed is accelerated to for the relevant numerical value of ensuing circulation section.For example (for example be designed for constant outer drive unit speed) under the characteristic situation of transmission case and reduce feed angle utilizing best for the method for operation under constant outer drive unit rotary speed situation.The rotary speed that changes external driver device in static segment has such benefit especially, promptly there is not moving-mass (except that servo-electric arbor and worm gear and also have sometimes the reduction box) there as far as possible, and correspondingly can avoids energy loss (braking) or high energy consumption (acceleration).Can reach the number of stroke that for example 200 strokes/minute are above or 270 strokes/minute are above in this way.Typically can reach more than 300 strokes/minute or even the above scope of 350 strokes/minute in number of stroke.
Description of drawings
Should be described with reference to the accompanying drawings the present invention by means of embodiment below, accompanying drawing is represented:
Fig. 1 one press bench is together with the vertical view of transmitting device;
Fig. 2 forcing press is together with the end-view of transmitting device part;
Fig. 3 presses the amplification partial sectional view of III-III line among Fig. 1;
The part of vertical drive unit of Fig. 4 transmitting device;
The schematic diagram of sending circulation to of Fig. 5 mechanical type transmission transmission case;
Fig. 6 has the schematic diagram of the transmission system of variable time of sending to or variable angle;
Fig. 7 one has the schematic diagram of sending circulation to of the transmission transmission case of variable-angle.
The specific embodiment
Fig. 1 and 2 more or less schematically represents a press bench 1, lead 2 and a press ram 3.On workbench 1, fix a bottom with so-called transmission mask of a plurality of processing that are linked in sequence or forming station, on pressure head 3, fix its top with method commonly used.This mould that do not draw among the figure for simplicity has a transmission pole 4 that has a work holder 5 that schematically illustrates purely respectively as longitudinally transmitting transmitter that workpiece to be formed passes each forming station in the mould both sides.The end of transmission pole is installed on vertical slide 7 by means of fixing angle bar 6.Vertically slide 7 (Fig. 3) moves along two parallel guide posts 8 rigidly, and guide post itself is fixed on the cross slide 9, and it moves along two parallel horizontal guide posts 10.
Transmission pole 4 is controlled by control track 11 along the outside transverse movement of opening direction, and the control track is installed on the press ram 3 and is positioned at outside control cam (Steuerkurve) 12 with it and acts on the control roller 13 of slide 9 extensions 14.The piston rod 15 of pneumatic linear actuator 16 is along inwardly affacting on the extension 14 in the other direction on the other hand.Therefore act on a reliable thrust all the time at the inside closing direction in extension 14 upper edges, control roller 13 is adjacent to all the time reliably on the control cam 12 of control track 11.By Fig. 2 and 3 as seen, control roller 13 and the part transmission pole 4 outside distendings that are connected with it unclamps thereby will be clamped in two workpiece 17 between the mutual opposed clamper 5 when control track 11 moves downward with press ram 3.At this moment clamper 5 also side direction leave the zone of upper and lower minute mould of forcing press, thereby make be used for the mould of processing work can be closed at all stations.
Represent among Fig. 1, for example be stamped and the outmost clamper that is transmitted bar 4 receives from the blank 18 of the conveyer belt 19 of laterally advancing at punching press and receiving station workpiece.Thereby workpiece 18 step-by-step movements are moved to the left and flow to successively each forming station of transmission mask in the fabrication cycles that is connected mutually.All forming station is put a workpiece 18 respectively after certain starting time.Carry out the regular-shape motion of a sealing at each fabrication cycles transmission pole 4, wherein they move to many blanks of catching the next forming station of transmission mask in one first stroke, in second stroke side direction outwards leave workpiece and with the overlay region of mould, in third trip, longitudinally return again, in the fourth line journey again inwardly towards workpiece motion s, to catch workpiece (this is also seen also Fig. 5, make an explanation below).
Vertical drive unit of transmission pole 4 comprises two leaf springs 20, and they are fixed on the inboard of vertical slide 7 with its right-hand member, and as shown in Figure 4, they can follow the transverse movement of transmission pole 4.Can be connected by longitudinally reciprocating guiding slide 21 with one at two leaf springs 20 of its left end, it drives via cog belt 22 by servomotor 23.Servomotor 23 feeds control signal 24, and control signal is drawn from the motion of press off-centering axle with a unillustrated rotary angle transmitter.
Now take such action, promptly combine with the advantage of servo drive, promptly adopt external driver device by the advantage of such method with mechanical gear according to the present invention, that is servomotor, vertical driving produced by a mechanical gear.Here mechanical gear is born to a certain extent by the motor rotation and is produced the task that oppositely needn't change direction of rotation that advances.
In mechanical gear, there are four districts (referring to Fig. 5) under the normal condition:
Be used for that drip molding is transported to sending to of next stage from a mould level and distinguish 25.
Be used for drip molding is transferred to from transmission system the quiescent centre 26 of shaping dies.
Be used for that the clamper track is returned to returning of original position and distinguish 27.
Be used for drip molding is transferred to from mould the quiescent centre 28 of clamper track.
The angle in common 4 districts is as follows:
Send 25:120 ° in district to
Quiescent centre 26:60 °
Return 27:120 ° in district
Quiescent centre 28:60 °
Feed angle 25 most criticals when these angles of design.Must transmit drip molding in this district does not also during movement allow to drop out from clamper or moves in its inside.
Angular dimension is conclusive for definite utilizable height in addition, when this utilization height drip molding is shaped.In Fig. 5 this height, available height is represented with pictorial symbolization 30 in theory, and total height, the stroke of a press are represented with pictorial symbolization 29.Fix for the given device stroke of a press.
Angle is big more, and the part that is formed must be low more.The stroke of a press 29 and theoretical available height 30 are nonadjustable when the stroke of a press and lengthwise movement and the pure mechanical connection of lateral movement.
Another kind of relation is the relation of forcing press number of stroke and feed angle.Angle is more little, must be with the running of low more number of stroke because otherwise in sending the district to acceleration (can reach 25g) too greatly at the mechanical aspects acceleration.In transmission system, must be all the time accelerate to maximal rate from zero repeatedly at each motor area built-in motor, and when braking, decelerate to zero from maximal rate with classical servo drive.
If use method of the present invention together now, obtain following scheme (referring to Fig. 6) so with the combination of drive means of 2 types of transmission systems:
One servomotor 35 with variable revolution and step-by-step movement angular transducer drives a mechanical type cam gear 38, and wherein each subregion is by the most preferred aspects design for forcing press maximum stroke number.This optimization is that constant rotational speed i, d, the R for motor designs.One reduction box 36 is set between servomotor 35 and cam gear 38 in addition here.Servomotor 35 is switchable motors, that is its power can be controlled.For example can adopt a rotating speed is 3000 rev/mins servomotor 35, and the speed ratio of reduction box is 1: 10, transmits the rotation of 300 rev/mins of transmission case 38 inputs so.
Servomotor 35 is synchronous by the eccentric shaft-driven step-by-step movement angular transducer 32 of forcing press 31 by one by a control device.In order to guarantee that servomotor 35 also has the step-by-step movement angular transducer synchronously.
The step-by-step movement angular transducer is an electronic building brick, and it can be divided into for example 0.044 ° increment with the rotation of 360 ° on axle (for example press off-centering axle), and the corresponding angle position of accurate Calculation eccentric shaft.
Transmission transmission case 38 comprises a worm gear 37, and it is by the generation lengthwise movement that rotatablely moves of servomotor 35.This lengthwise movement is delivered on the transmission pole 4 by a feeding lever 34.
If now with the running of maximum stroke number, according to the cam rule design of transmission transmission case 38, just servomotor 35 turns round with the constant rotational speed that accurately is equivalent to forcing press 31 eccentric shaft rotating speeds so.
It is just the same when system and transmission case 38 direct eccentric shafts by forcing press 31 drive when this method of operation.
If now want to make full use of the advantage of servomotor 35, just can change rotating speed so at each curve district built-in motor 35.Allow to change the time of sending under the constant situation of stroke 33 sending to like this.This is similar to Fig. 5, schematically illustrates in Fig. 7.
If transmission case is with the revolution running identical with forcing press, the time of sending to so is equivalent to designed feed angle (state of Fig. 5).
If transmission case is fast in the running of feed angle zone 25 or 40 internal ratio forcing presses, just so the time shorten, and send angle to may be littler.Improve thus for the utilizable height of part forming (arrow 30 among Fig. 5).Should be noted that the twice that is at least part height to be formed for the available height of part forming, and must consider that usually at least 1/3 is used for carrying.
The revolution of servomotor 35 can change in quiescent centre 26,28.
If should dwindle feed angle 40, so can be in the static highway section 43 of worm gear 37 (conveyer does not travel longitudinally) make motor 35 be transferred to higher fast.The feed angle 40 of passing by in the short period of time in this case, and angle may become littler.(drip molding is transferred mould to) motor 35 can slow down again like this in next one district, make it at the latest when entering backstroke again with forcing press 31 run-in synchronisms.
The example different time motion flow process at interval that has as shown in FIG. 7 forms with corresponding method:
Original position:
Forcing press for example turns round with the rated speed of 300 strokes/minute
Mechanical type stepping conversion transmission case 38 is pressed 120 °/60 °/120 °/60 ° designs of standard angle.
Send circulation (time) to and for example shorten 50% (possible send to angle=60 °) with respect to the standard time.
In the motion flow process, pass by with hypomere or point:
1. forcing press reaches its rated speed in top dead-centre 39 startings of forcing press after the short time.At this moment the transmission sending to just pass by send to stroke 33 half.
2. send to slackly at the A point, and forcing press remains in operation with constant rotating speed.In this position clamper closure.Clamper unclamps in the time of in carrying out the transition to the zone, and the mould of forcing press just clamps part to be processed fully.
3. servomotor 35 reduces its rotating speed (being lower than the forcing press rotating speed) in the B district.
4. servomotor 35 is brought up to the forcing press rated speed with its rotating speed in the C district.
5. send its backstroke 42 of beginning in the transmission of D point, and return its final position E with the rotating speed identical with forcing press.Carry out intrinsic processing at regional 42 inner molds.Correspondingly just to surround the part that processes at the E point closed again for clamper.
6. servomotor 35 reduces its rotating speed (being lower than the forcing press rotating speed) in regional F.Attention: the servomotor rotating speed can be reduced to zero under extreme case.
7. servomotor 35 improves its rotating speed (overpressure machine rotating speed) in regional G.
8. send 40 startings in the transmission of H point.At this moment compare the transmission transmission case with forcing press with pass by zone between a H and the A of high rotational speed (for example in this example with the twice rotating speed).
Can adjust the circulation timei of transmission system separately by the rotating speed that changes servomotor 35 with respect to the rotating speed of forcing press.
Can also rotate the whole motion cycle of transmission transmission case in theory, (for example 39 return, send to and pass 180 °) at the dead point.
Should be noted that not only angle but also speed must be got the numerical value of regulation at each position A, D, E and H.Therefore not only brake but also quicken at quiescent phase 41 and 43.
Integrate and we can say, by the curve law that can change transmission device to a certain extent that is combined in of mechanical gear and servo-electric machine actuating device.For example can process higher part on the one hand,, not need machine adaptations though this is slower slightly than normal operation.When part is low, can correspondingly realize bigger number of stroke, and cause short mould springing stroke.
Obtain the following advantage of system:
All advantages of mechanical gear
Servo drive except that variable all advantages of sending to the stroke
Therefore servomotor needn't only need less energy (compare than the vertical drive unit with servomotor of not being with worm reduction box usually and can adopt the servomotor that has only a half-power) to stop and the drive manner operation
The change of speed can be carried out in the quiescent centre of worm gear
The power of transmission system is equivalent to the power of full mechanical system
Can process higher workpiece having on the forcing press of fixing stroke height
Can enlarge the range of application of forcing press and obtain more user and use
If servomotor changes rotating speed, it only needs to quicken or slow down himself quality (rotor) and worm gear quality, because the rectilinear motion quality of transmission system is in the quiescent centre
The power of transmission system is compared with pure servo conveyer can improve about 20-30%.
The pictorial symbolization table
1 press bench, 24 control signals
2 guide pillars 25 are sent (standard angle=120 °) to
3 press rams 26 static (standard angle=60 °)
4 transmission poles 27 return (standard angle=120 °)
5 are used for the clamper of workpiece 28 static (standard angle=60 °)
6 fixing angle bar 29 forcing press strokes, fixing
7 vertical slides 30 are for the reason of part forming
8 guide posts opinion available height
9 cross slides, 31 forcing presses
10 laterally steering bars, 32 step-by-step movement angular transducers
11 control tracks 33 are sent stroke to
12 control cams, 34 feeding levers
13 control rollers, 35 servomotors
14 extensions, 36 reduction boxes
15 piston rods, 37 worm gears
16 pneumatic linear actuators (Getriebeschnecke)
17 workpiece that clamp, 38 transmission transmission cases
18 blanks, 39 forcing press top dead-centres
The conveyer belt 40 of 19 lateral direction penetratings is sent to
20 leaf springs 41 are static
21 guiding slides, 42 returns
22 cog belts 43 are static
The 44 feeding lever rotating shafts of 23 servomotors
Claims (18)
1. one kind at forcing press (1-3; 31) device on; Be used for by workpiece transfer device (4) longitudinally from receiving station step-by-step movement transmission workpiece (17; 18) pass at least one processing stations of forcing press; Transmitter synchronously longitudinally moves back and forth periodically and with press motion; And along basically vertical with it traverse motion; In order to catch and again unclamp workpiece; Wherein transmitter longitudinally move through one only with forcing press (1-3; External driver device (the 20-24 of synchronized movement 31); 35-37) carry out
It is characterized by:
(20-24 35-37) is mechanically connected on the transmitter (4) electronic external driver device like this, makes transmitter (4) to move back and forth, and external driver device (23,35) does not need counter-rotating.
2. by the device of claim 1, it is characterized by: the mechanical connection between external driver device (23,35) and the transmitter (4) is made mechanical gear, particularly mechanical type cam drive case (38).
3. by the device of claim 2, it is characterized by: transmission case is worm reduction box (37,38).
4. by each device of aforesaid right requirement, it is characterized by: electronic external driver device (20-24, the step-by-step movement angular transducer (32) that moves through 35-37) joins with the motion of forcing press (1-3,31), particularly the motion coupling with forcing press (1-3,31) eccentric shaft.
5. by each device of aforesaid right requirement, it is characterized by: be provided with such device, their allow according to send to circulation with the electronic external driver device of different rotating speed operations (20-24,35-37).
6. by each device of aforesaid right requirement, it is characterized by: electronic external driver device (23,35) is a servomotor.
7. by each device of aforesaid right requirement, it is characterized by: the direct mechanical that moves through that transmitter (4) unclamps workpiece along horizontal being used for connects from the moving of forcing press and draws.
8. by each device of aforesaid right requirement, it is characterized by: transmitter (4) catches the motion of workpiece (17,18) to be undertaken by an external driver device (16) equally along horizontal being used for.
9. by each device of aforesaid right requirement, it is characterized by: the speed of transmitter (4) lengthwise movement can need not mechanical alteration and the only rotating speed change by control external driver device (23,35) in certain limit.
10. by each device of aforesaid right requirement, it is characterized by: transmitter (4) unclamps the driving of workpiece and draws from the motion of press ram by a mechanical cam system (11,12) along horizontal being used for.
11. each device by the aforesaid right requirement, it is characterized by: transmitter (4) comprises transmission pole (4), these transmission poles longitudinally extend in the both sides of described receiving station and described at least one processing stations and preferably are equipped with the clamper (5) that is used for workpiece (17,18).
12. one kind is used at forcing press (1-3,31) go up particularly preferably in passing through workpiece transfer device (4) under the situation that adopts each described device of pressing claim 1-11 workpiece (17,18) method of longitudinally passing at least one processing stations of forcing press from receiving station step-by-step movement transmission, transmitter longitudinally moves back and forth with the synchronized movement of forcing press ground periodically, and along with the traverse motion of its perpendicular, so that catch and unclamp workpiece again, wherein transmitter longitudinally move through one only with forcing press (1-3, external driver device (the 20-24 of synchronized movement 31), 35-37) carry out
It is characterized by:
(20-24 35-37) drive, and external driver device (23,35) needn't be reversed by electronic external driver device in the reciprocating motion of transmitter (4).
13. the method by claim 12 is characterized by: electronic external driver device (23,35) is with constant rotating speed and direction of rotation running.
14., it is characterized by by the method for claim 12: electronic external driver device (23,35) under the preferably constant situation of direction of rotation according to sending the rotation speed operation of circulation to change.
15. by the method for claim 14, it is characterized by: the rotating speed of external driver device (23,35) changes sending in those sections (26,28,41,43) that the transmitter of circulation (4) do not travel longitudinally.
16. by claim 14 or 15 method, it is characterized by: the rotating speed of external driver device (23,35) changes like this, makes remain unchanged drive manner under the situation of rotating speed for external driver device (23,35) dwindle and send angle (25,40) to.
17. the method by claim 16 is characterized by: when sending (25,40) to, turn round with constant high rotational speed; And sending in those sections (26,28,41,43) that the transmitter of circulation (4) do not travel longitudinally, rotating speed at first slows down, and (B F), then quickens rotating speed that (C is G) to for ensuing section (25,27,40,42) relevant numerical value.
18. each the method by claim 12-17 is characterized by: forcing press (1-3,31) is with more than 200 strokes/minute, is preferably in the number of stroke operation in 300 strokes/minute or the above scope.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1033/03 | 2003-06-13 | ||
| CH10332003 | 2003-06-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1805806A true CN1805806A (en) | 2006-07-19 |
Family
ID=33546148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200480016558.3A Pending CN1805806A (en) | 2003-06-13 | 2004-06-03 | Transfer device on a press |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20060230809A1 (en) |
| EP (1) | EP1633507A1 (en) |
| JP (1) | JP2006527088A (en) |
| CN (1) | CN1805806A (en) |
| WO (1) | WO2004110667A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101920579A (en) * | 2009-06-15 | 2010-12-22 | 株式会社电装 | Mould |
| CN104602840A (en) * | 2012-07-09 | 2015-05-06 | 曼露埃拉·博朗 | Holding and transporting device |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005062860A1 (en) * | 2005-12-29 | 2007-07-12 | Robert Bosch Gmbh | Method and device for producing bent spring elements |
| EP3627257B1 (en) * | 2018-09-18 | 2022-11-30 | Siemens Aktiengesellschaft | Motion planning for a transport system of a servopress installation |
| EP3702062A1 (en) | 2019-03-01 | 2020-09-02 | Adval Tech Holding AG | Feeding device for a transfer press |
| CN112935180B (en) * | 2021-01-20 | 2022-10-04 | 浙江洪扬汽车零部件有限公司 | High-speed nut forming machine |
| CN114682669A (en) * | 2022-03-31 | 2022-07-01 | 江苏亚威机床股份有限公司 | Double-servo intelligent stroke compensation stamping system of numerical control turret punch press |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2934194A (en) * | 1959-01-13 | 1960-04-26 | Bliss E W Co | Work feed console |
| US4032018A (en) * | 1975-11-21 | 1977-06-28 | Wallis Bernard J | Workpiece transfer mechanism |
| JPH063580B2 (en) * | 1984-09-14 | 1994-01-12 | ソニー株式会社 | Logarithmic conversion method |
| US4785657A (en) * | 1985-05-17 | 1988-11-22 | Connell Limited Partnership | Transfer feed mechanism for power presses |
| JPH0649380Y2 (en) * | 1988-08-03 | 1994-12-14 | アイダエンジニアリング株式会社 | Feed bar drive for transfer press machine |
| DE4309643C2 (en) * | 1993-03-25 | 2002-06-13 | Schuler Pressen Gmbh & Co | Transfer device for workpiece transport |
| DE4428772A1 (en) * | 1994-08-13 | 1996-02-15 | Schuler Pressen Gmbh & Co | Device for three-dimensional drive of gripper rails |
| US5640875A (en) * | 1995-10-20 | 1997-06-24 | Livernois Die And Automation | Die transfer system with modular transfer drive |
| JPH10146629A (en) * | 1996-11-18 | 1998-06-02 | Aida Eng Ltd | Manual clamp/unclamp device for transfer press |
| US6050124A (en) * | 1998-02-04 | 2000-04-18 | Komatsu Ltd. | Transfer feeder having two different drive modes and method of its operation |
| DE69902775T2 (en) * | 1998-05-04 | 2003-10-16 | Vantico Ag | DEVICE FOR TRANSPORTING THIN PLATES, ESPECIALLY PCB |
| AU5725699A (en) * | 1998-10-05 | 2000-04-26 | Adval Tech Holding Ag | Transferring device on a press |
| JP3773405B2 (en) * | 2000-09-29 | 2006-05-10 | アイダエンジニアリング株式会社 | Transfer device |
| US7128195B2 (en) * | 2004-03-22 | 2006-10-31 | Linear Transfer Systems Ltd. | Workpiece transfer system for stamping press |
-
2004
- 2004-06-03 CN CN200480016558.3A patent/CN1805806A/en active Pending
- 2004-06-03 US US10/559,420 patent/US20060230809A1/en not_active Abandoned
- 2004-06-03 EP EP04735864A patent/EP1633507A1/en not_active Withdrawn
- 2004-06-03 WO PCT/CH2004/000333 patent/WO2004110667A1/en not_active Application Discontinuation
- 2004-06-03 JP JP2006515619A patent/JP2006527088A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101920579A (en) * | 2009-06-15 | 2010-12-22 | 株式会社电装 | Mould |
| CN104602840A (en) * | 2012-07-09 | 2015-05-06 | 曼露埃拉·博朗 | Holding and transporting device |
Also Published As
| Publication number | Publication date |
|---|---|
| US20060230809A1 (en) | 2006-10-19 |
| WO2004110667A1 (en) | 2004-12-23 |
| EP1633507A1 (en) | 2006-03-15 |
| JP2006527088A (en) | 2006-11-30 |
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