CN102581121B - Tool replacing method of tandem press system and tandem press system - Google Patents
Tool replacing method of tandem press system and tandem press system Download PDFInfo
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- CN102581121B CN102581121B CN201110002643.6A CN201110002643A CN102581121B CN 102581121 B CN102581121 B CN 102581121B CN 201110002643 A CN201110002643 A CN 201110002643A CN 102581121 B CN102581121 B CN 102581121B
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Abstract
The invention provides a tool replacing method of a tandem press system, which can rapidly replace a tool, and the tandem press system. The tandem press system comprises a plurality of presses, a workpiece conveying device and a tool replacing device, wherein the presses are arranged along a workpiece conveying direction; the workpiece conveying device uses the tool installed by use of a cross rod to convey workpieces from preposed presses to postposed presses; and the tool replacing device is used for replacing the tool installed on the workpiece conveying device. In the tandem press system, the tool replacing device can be moved into and moved out from the position between the preposed presses and the postposed presses to the outer part of a machine in the tool replacing direction, and the moving-into and moving-out procedures are independent of the moving-into and moving-out of a base plate provided with a mold to the outer part of a machine in a mold replacing direction.
Description
Technical field
The present invention relates to and can use work transfer device that workpiece is delivered to rearmounted forcing press and the tandem press machine system that tool replacing apparatus can be used to change the instrument be installed on work transfer device and its tool changing method from the precondition pressure machine arranged along workpiece throughput direction.
Background technology
Being provided with in the tandem press machine system of multiple forcing press along workpiece throughput direction, by work transfer device, workpiece is delivered to rearmounted forcing press from preposition forcing press, and utilizes each forcing press to form processing.Work transfer device uses instrument to carry out holding workpiece.The modular instrument arranging workpiece maintaining body (such as multiple vacuum suction cup) according to workpiece form, weight made by this instrument more, is designed to carry out dismounting by cross bar on work transfer device.That is, by the link maintaining part of cross bar relative to work transfer device being loaded and unloaded, thus instrument is loaded and unloaded on work transfer device (link maintaining part).
When changing punch process product (product), need more mold exchange.In most cases the form of workpiece (raw material), size, weight also change.In this case, the instrument (below in this manual referred to as " current tool ") that the instrument of work transfer device must be used from current punch process is replaced by the instrument (referred to as " next instrument ") that will use in next punch process.Tool replacing apparatus is the device for the cross bar (referred to as " working as front rail ") being installed with current tool being replaced by the cross bar (referred to as " next cross bar ") being installed with next instrument.Tool changing operation is the machine exterior after taking out of, and replaces when front rail and replaces with next cross bar having installed next instrument in advance.In addition, sometimes after taking out of from pulling down current tool when front rail, and be used as next cross bar installing next instrument thereafter.
For known tool replacing apparatus, disclose and carry the known example 1 (such as Japanese Unexamined Patent Publication 2004-50290 publication) of synchronous synchronous transport mode and the known example 2 (such as Japanese Unexamined Patent Publication 2005-161379 publication) of independent mode of movement with mould.
It is the structure tool replacing apparatus be made up of dwang (12) being rotatably mounted in sliding stand (backing plate) in known example 1.Along with in order to more mold exchange and carrying-in/carrying-out backing plate, tool replacing apparatus (12) is taken out of to machine exterior or moves into from machine exterior.That is, dwang is erected and accommodates to work as front rail, and pull to backing plate side, thereafter backing plate is taken out of machine exterior.That is, when taking out of of front mold is synchronous with working as taking out of of front rail.
After the mould used in current punch process (below in this manual referred to as " when front mold ") being replaced by the mould (referred to as " next mould ") that will use in next punch process in machine exterior, front rail will be worked as and be replaced by next cross bar, then with in forcing press, move into backing plate (mould) synchronously carry.After being replaced by next mould, by dwang from backing plate layback from, next cross bar is submitted to work transfer device (link maintaining part).Then, dwang is rotated with level.
Further, also describe the tool replacing apparatus owing to being backing plate side rotation mode, therefore can reach the effect not hindering and enter in forcing press.But, because tool replacing apparatus (dwang etc.) 12 always to support as level by needs, therefore for the narrower tandem press machine system of spacing between precondition pressure machine and rearmounted forcing press, be difficult to adopt said structure.
For this point, in known example 2, the chassis can walked along the guide rail (r1, r2) extending to machine exterior between forcing press is set, the collecting platform (3) being used for accommodating cross bar (cb) is installed on this chassis (1).Further, in order to prevent when width narrower and highly higher shake, tilt, utilize many rollers (r01, r02, r03) to seek the stable posture of chassis (collecting platform) relative to guide rail.Even if in it is possible to provide conveying device between the narrower forcing press that also successfully cross bar (cb) can be taken out of machine exterior or move into from machine exterior of the spacing between a kind of forcing press.
In this known example 2, does not change the record of operation and die change operation about the relation of conveying device between forcing press and work transfer device, cross bar, but supposition can use the tool bar replacing operation that between this forcing press, conveying device is carried out to perform in the following order.That is, from machine exterior, conveying device between the forcing press of sky (collecting platform (chassis)) is moved between forcing press, and when front rail is from work transfer device collecting platform, conveying device between this forcing press is taken out of machine exterior.In machine exterior, unload from collecting platform and work as front rail, then next cross bar is installed on collecting platform.Then, again from machine exterior, conveying device between forcing press is moved between forcing press, conveying device between the forcing press next cross bar being submitted to standby zero load.Then, conveying device between forcing press is taken out of machine exterior again.
Summary of the invention
But, the object of known example 1 is just to make the object of simple and convenient, the known example 2 of the mode of entrance in forcing press just be to solve narrow the produced problem of spacing between forcing press, ignores the raising of the production efficiency of tandem press machine system entirety, the fast of tool changing operation both having to completely.That is, following problem had not both been related to do not enlightened yet.
That is, the fast of tool changing operation is directly connected to the raising of production efficiency.Be carry out die change operation and tool changing operation successively according to time sequencing as mentioned above in known example 1, therefore due to the relation with die change operation, be difficult to the fast promoting tool changing operation.Owing to adding, backing plate (platform) furthered, be pulled away from time of dwang (more changing device 12), make tool changing operation slower on the contrary.Spinning movement is also one of reason postponed.And, enter facilitation even if achieve in forcing press, because the space (sideshake) of forcing press side direction is narrow, therefore can not improve because operation easily contribute to production efficiency.And; also there is the problem in practice; namely; owing to being that dwang (more changing device 12) and backing plate are integrally taken out of machine exterior; therefore frame for movement becomes obstruction, machine exterior Work places carry out die change operation with and subsequent tool changing operation spend very much time and time (operation difficulty).In addition, if do not carry out die change, then tool changing cannot be carried out.
When known example 2, owing to being straightaway, compared with the rotation (and rectilinear movement of large weight backing plate) of known example 1, carrying-in/carrying-out speed improves relatively.But tool changing must make chassis (collecting platform) carry out 2 times back and forth between machine exterior and forcing press.And, must unload in conveying device (collecting platform) between the forcing press taken out of, after front rail, next cross bar could be installed.Operation is in a hurry numerous and diverse, easily produces operation error.All can extend the tool changing time in either case.
The object of the present invention is to provide and a kind ofly can carry out tool changing rapidly and the high tandem press machine system of production efficiency.
Tool changing operation is carried out within forcing press withholding period.For the tool changing operation that machine exterior is carried out, the affluence amount of time is more, then more correctly and carry out replacing operation safely, and can alleviate the sensual mentally burden of operator.In addition, the replacing construction changing new and old cross bar to work transfer device is shorter, then more can initiation pressure machine running again as early as possible, thus can enhance productivity.
The present invention is on the basis confirmed again the inherent technology item in this tandem press machine system, is designed to the requirement meeting following two aspects: in the lengthening (prolongation) of the tool changing time of machine exterior; The shortening (rapidly) of the tool changing time between forcing press.
Namely, in forcing press running (processing) period, next cross bar (next instrument) can be prepared with the enough rich time in machine exterior, can performing when the collecting of front rail and providing of next cross bar between forcing press continuously, working as front rail from moving into next necessary cross bar to taking out of with tool replacing apparatus once back and forth can carry out between forcing press and between machine exterior.By the fast of tool changing operation entirety, can enhance productivity to greatest extent.
Specifically, first technical scheme of the present invention is a kind of tool changing method of tandem press machine system, work transfer device can be used from the precondition pressure machine arranged along workpiece throughput direction to rearmounted forcing press conveying workpieces, and tool replacing apparatus can be used to change the instrument be installed on work transfer device
In the machine exterior in the tool changing direction intersected vertically with above-mentioned workpiece throughput direction, next cross bar being provided with next instrument is loaded in advance on a side of above-mentioned tool replacing apparatus or the loading resettlement section of the opposing party;
Between the forcing press above-mentioned tool replacing apparatus being loaded with next cross bar being moved to precondition pressure machine and rearmounted forcing press between forcing press withholding period from this machine exterior;
Between this forcing press, the front rail of working as being provided with current tool is supplied to arbitrary loading resettlement section of the zero load of above-mentioned tool replacing apparatus from above-mentioned work transfer device;
Then, next cross bar of the loading resettlement section being loaded into this side or the opposing party is supplied to above-mentioned work transfer device;
The loading resettlement section that its this machine exterior backward takes out of this side or the opposing party is mounted with the above-mentioned tool replacing apparatus when front rail of accommodating from above-mentioned work transfer device, terminates the replacing operation of the instrument on above-mentioned work transfer device that is arranged on.
According to this kind of tool changing method, promptly can carry out tool changing, and can enhance productivity significantly.
Second technical scheme of the present invention is a kind of tandem press machine system, comprises the multiple forcing presses arranged along workpiece throughput direction; The instrument installed by cross bar is used workpiece to be delivered to the work transfer device of rearmounted forcing press from preposition forcing press; For the tool replacing apparatus changed the instrument be installed on work transfer device, it is characterized in that:
Carrying-in/carrying-out can be carried out to the machine exterior with the vertical tool changing direction of above-mentioned workpiece throughput direction to above-mentioned tool replacing apparatus between preposition forcing press and the forcing press of rearmounted forcing press, and above-mentioned carrying-in/carrying-out is performed the carrying-in/carrying-out that the backing plate being mounted with mould carries out independently of each other respectively with to the machine exterior with the vertical die change direction of above-mentioned workpiece throughput direction.
The cross bar loading part of above-mentioned workpiece replacing device is provided with two the loading resettlement sections be set up in parallel along above-mentioned workpiece throughput direction, and two cross bars can be loaded simultaneously.
Between forcing press withholding period, between this forcing press, the front rail of working as being provided with current tool arbitrary loading resettlement section unloaded above-mentioned tool replacing apparatus can be supplied to from above-mentioned work transfer device, and from the loading resettlement section of a side of above-mentioned tool replacing apparatus or the opposing party, next cross bar being provided with next instrument above-mentioned work transfer device can be supplied to.
Can will accommodate when the above-mentioned tool replacing apparatus of front rail takes out of the machine exterior in tool changing direction, and can unload when front rail in the loading resettlement section of this machine exterior from the opposing party or a side and thereafter next cross bar is loaded into the loading resettlement section of a side or the opposing party.According to such tandem press machine system, successfully can implement above-mentioned tool changing method, device specific easy and simple to operate.
Above-mentioned tandem press machine system can be, be provided with " loaded " position auto-changeover control portion, when providing when front rail, by " loaded " position auto-changeover control portion, the link maintaining part of above-mentioned work transfer device is switched either party the loading resettlement section being positioned above-mentioned zero load, and when accommodating next cross bar, the link maintaining part of above-mentioned work transfer device being switched by " loaded " position auto-changeover control portion the loading resettlement section that is positioned one side or the opposing party and being loaded with the loading resettlement section of next cross bar.So, can provide more accurately and collecting.
Above-mentioned tandem press machine system can be, the above-mentioned cross bar loading part being designed to above-mentioned workpiece replacing device can move up and down along with the above-below direction change in location of above-mentioned work transfer device side during the above-mentioned cross bar of loading.So, without impact, cross bar can be loaded on cross bar loading part.
Above-mentioned tandem press machine system can be that above-mentioned work transfer device is directly supported on pedestal, or is indirectly supported on pedestal across the damping device of above-below direction position changeable.So, the above-below direction change in location for the work transfer device side caused by damping device also can be followed.
Above-mentioned tandem press machine system can be, above-mentioned workpiece replacing device comprises above-mentioned cross bar loading part, the chassis can advanced along the guide rail of advancing extended along above-mentioned workpiece replacing direction, for above-mentioned cross bar loading part is linked to the coupling member of this chassis and drive division of advancing, and above-mentioned cross bar loading part can be elevated relative to chassis.So, the tool changing operation of machine exterior can be carried out with nature, comfortable posture.
Above-mentioned tandem press machine system can it is possible to the high position these three grades during low level, the interposition when the tool changing of above-mentioned machine exterior and the cross bar between the above-mentioned forcing press handing-over above-mentioned cross bar loading part lifting be positioned when chassis is advanced.So, advance stabilisation and the cross bar handing-over stabilisation of chassis can be contributed to.
Above-mentioned tandem press machine system can be, above-mentioned chassis and above-mentioned drive division of advancing are arranged on the below of flooring element, narrower and a pair notch part that be that extend along above-mentioned tool changing direction of the size that this flooring element forms above-mentioned workpiece throughput direction, above-mentioned coupling member can be formed along the plural tabular component of above-mentioned tool changing direction movement by with the state running through notch part.So, even if also can adapt to the distance between forcing press is less, and easily chip is processed.
Accompanying drawing explanation
Fig. 1 is the top view for illustration of tandem press machine system of the present invention.
Fig. 2 is rearmounted forcing press, the side view of relation between work transfer device and tool replacing apparatus seen for illustration of the upstream side of the Y-direction from Fig. 1, (A) represent situation when the tool changing operation of machine exterior, (B) represents between forcing press the situation of carrying out when next cross bar provides operation.
Fig. 3 is the figure for illustration of being mainly used in the lifting unit making cross bar loading part be elevated, and (A) is top view, and (B) is the side view of broken section.
Fig. 4 is the front view of the broken section of above-below direction position for illustration of the cross bar loading part taking chassis as benchmark, (A) situation of the position that mediates is represented, (B) represent the situation being in low level, (C) represents the situation being in a high position.
Fig. 5 is the top view for illustration of loading resettlement section and float portion.
Fig. 6 is the front view for illustration of loading resettlement section and float portion.
Detailed description of the invention
Describe the specific embodiment of the present invention in detail with reference to the accompanying drawings.
As shown in Fig. 1 ~ Fig. 6, tool replacing apparatus 30 can 11 be taken out of the machine exterior 105 in the tool changing direction (Yt direction) vertical with workpiece throughput direction (X-direction) or move into from this machine exterior 105 by tandem press machine system 1 of the present invention between forcing press, and can take out of with the machine exterior 104 of having settled the backing plate 14 of mould to the die change direction (Yd direction) vertical with X-direction or move into from this machine exterior 104 and carry out carrying-in/carrying-out independently of each other, two the loading resettlement section 33D be set up in parallel in X direction are set at the cross bar loading part 31 of tool replacing apparatus 30,33U, and two cross bar 61 (61D can be loaded simultaneously, 61U), and 11 from work transfer device 20, the side (or the opposing party) being supplied to tool replacing apparatus 30 zero load as front rail 61B can be loaded resettlement section 33D (33U) between the forcing press between forcing press withholding period, and next cross bar 61A being loaded into the opposing party (or a side) and loading receiving portion 33U (33D) is supplied to work transfer device 20, can machine exterior 105 be taken out of having accommodated when the tool replacing apparatus 30 of front rail 61B and load resettlement section 33D (33U) from a side (or the opposing party) and unload as front rail 61B, and next cross bar 61A is loaded into the opposing party (or a side) and loads resettlement section 33U (33D).
That is, this tandem press machine system 1 is the tandem press machine system corresponding with the second technical scheme substantially, is best suited for the system of the tool changing method of enforcement first technical scheme.In addition, between forcing press, 11 provide when the destination of front rail 61B is a side unloaded in two loading resettlement section 33D, 33U, " namely two load either party in resettlement section 33D, 33U ", the destination of next cross bar 61 will be loaded in machine exterior 105, as long as unloading after front rail 61B, two are loading resettlement section (33D, 33U).As long as consider to select in the layout, operability of the tool changing operation machine in machine exterior 105.Below for the purpose of simplifying the description, be substantially described as the loading resettlement section 33D providing destination to be denoted as a side of front rail 61B, the loading resettlement section 33U that the loading destination of next cross bar 61 is denoted as the opposing party.
In Fig. 1 (top view), Fig. 2 (side view), tandem press machine system 1 comprises: the multiple forcing presses 10 arranged in X direction; The instrument 65 installed by cross bar 61 is used workpiece (not shown) to be transported to the work transfer device 20 of rearmounted forcing press 10D from preposition forcing press 10U; For the tool replacing apparatus 30 changed the instrument 65 (cross bar 61) be installed on work transfer device 20.Precondition pressure machine 10U is positioned at X-direction upstream side, and rearmounted forcing press 10D is the forcing press being positioned at adjacent downstream.Both to be called between forcing press 11 between 10U, 10D.
In addition, the tool replacing apparatus 30 of Fig. 1 is the tool replacing apparatus (30D) corresponding with rearmounted forcing press 10D.In FIG, for the tool replacing apparatus 30 (30U) corresponding with precondition pressure machine 10U, to be located thereon each forcing press 10 and corresponding each tool replacing apparatus 30 thereof of swimming side and each forcing press being positioned at rearmounted forcing press 10D downstream and corresponding each tool replacing apparatus 30 thereof all not shown.
Utilize and comprise the guide rail 16 shown in Fig. 1, chassis (not shown) etc. and be designed to the die-changing apparatus 15 that can advance in forcing press and between machine exterior 104, can along the backing plate 14 of each forcing press 10 of Yd direction carrying-in/carrying-out, taken out of current die change can will be next new mould in machine exterior 104 by the backing plate 14 of this each forcing press 10.This die change operation must be prudent, needs considerable time.In Fig. 1,19 is dregs guiding grooves, arranges in the X direction across the both sides of backing plate 14.
Tool replacing apparatus 30 (30D) shown in Fig. 1 to represent between the forcing press between forcing press withholding period 11, what provided by work transfer device 20 is loaded into loading receiving portion 33D, the 33D of a side as front rail 61B, and to be moved to thereafter the state of machine exterior 105.Be installed on when the current tool 65B on front rail 61B is made into the modular instrument comprising multiple vacuum suction cup, annex, charge and discharge operations handle etc., be expressed as the space shared by this instrument (unit) 65B.In machine exterior 105, load on resettlement section 33U, 33U the opposing party and be mounted with next cross bar 61A (next instrument 65A) shown in dotted line.
That is, unload as front rail 61B from tool replacing apparatus 30 and the tool changing operation of next cross bar 61A be installed, can in machine exterior 105 and forcing press running in, all can perform at any time with the time of affluence.
The post-job state of tool changing be loaded into by next cross bar 61A on pair of right and left cross bar loading part 31 (33U), 31 (33U) is represented at the side view seen from the X-direction upstream side of Fig. 1 (Fig. 2 (A)).Forcing press running is carried out in rearmounted forcing press 10D.The left hand half of Fig. 2 (B) divides expression to make the tool replacing apparatus 30 being loaded with next cross bar 61A advance and be moved to the state of between the forcing press in Yt direction 11.Its right hand half divides the state representing and from the tool replacing apparatus 30 after moving into, next cross bar 61A is supplied to work transfer device 20.
In fig. 2, tool delivery device 20 is for holding workpiece (not shown) and it is transported to the mechanism of rearmounted forcing press 11D from preposition forcing press 10U, and its mode of movement, structure are not defined.The tool delivery device 20 of this embodiment comprises: can by be located between forcing press (10D, 10U) 11 central part place fulcrum centered by the transfer member (not shown) of reciprocally swinging; The feeding arm 21 on this transfer member reciprocatingly can be installed at above-below direction; Be installed on the link maintaining part 25 of this feeding arm 21 bottom, the workpiece can accommodated from preposition forcing press 10U (front mold worked as by backing plate 14) by cross bar 61 (instrument 65) conveying is also arranged to rearmounted forcing press 10D (front mold worked as by backing plate 14).
Work transfer device 20 makes following structure: can will work as front rail 61B (current tool 65B) by link maintaining part 25 and be supplied to tool replacing apparatus 30, and can accommodate next cross bar 61A (current tool 65A) from tool replacing apparatus 30 thereafter.The link maintaining part 25 with automatic tool exchange function can link with the connecting portion 62 of cross bar (61) side, and can keep cross bar 61 completely with connecting state.Under connecting state, gas piping system, the electrical system of the instrument 65 on this cross bar 61 from work transfer device 20 side that is dynamically connected can be installed on.
Workpiece pipage control portion is formed by servo motor control unit (not shown), and transfer member can be driven to swing, and the workpiece that remain by instrument 65 is delivered to rearmounted forcing press 10D from preposition forcing press 10U.Feeding arm 21 is driven and knee-action by feeding driving device 22, feeding arm 21 and to link maintaining part 25 be no matter when taking off workpiece from preposition forcing press 10U or when workpiece being supplied to rearmounted forcing press 10D, all cross bar 61 can be maintained the structure of level.That is, workpiece can be made to carry with constant form.
Specifically, as shown in Figure 2, Figure 4 shows, tool replacing apparatus 30 (30U) comprising: be installed on the pair of right and left cross bar loading part 31 on each apparatus main body 41; Chassis 51; Cross bar loading part 31 (apparatus main body 41) is connected to the linking part 47 on this chassis 51; Advance drive division 58, being designed to can to being arranged on changing as front rail 61B (current tool 65B) on work transfer device 20.
The structure of apparatus main body 41 is the stationary part 43 vertically arranging drum on the pedestal 42 shown in Fig. 4 (C), and movable part 44 is can the mode of freely up and down movement be inlaid in this stationary part 43.It is the structure of the lifting unit 70 for the ease of importing explained later.
Chassis 51 is on the chassis main body 51B shown in Fig. 4 (C), make the upper rolls 52 shown in this Fig. 4 (B), lower roll 53 and side roller 54 rotate the structure being sticked in and advancing with on guide rail 55, therefore, can be fixedly linked on integratedly on apparatus main body 41 by a pair, front and back coupling member 47,47.
Chassis 51 can be advanced along extended along the Yt direction shown in Fig. 1 advancing with guide rail 55.This is advanced and to be supported on pedestal 200 by the guide rail stand 56 shown in Fig. 4 (B) with guide rail 55.Drive division 58 of advancing comprises motor, sprocket wheel, chain 59 etc., chassis 51 (loading resettlement section 33) can be driven to advance along Yt direction, and can keep stopping at each precalculated position of between machine exterior 105 and forcing press 11.
As shown in Figure 2, Figure 4 shows, chassis 51 and drive division 58 of advancing are arranged on the below (basement 102) of flooring element 100.This flooring element 100 is set side by side with the size narrower (such as 30mm) of X-direction and a pair notch part 101 (with reference to Fig. 1) extended along Yt direction.In order to make pair of right and left coupling member 47 with the state having run through this each notch part 101 along Yt direction smoothly and move with sealing state, coupling member 47 is designed to the size (thickness) slightly less than the width of notch part 101, and is formed by plural tabular component.That is, tabular component (47) is two in the X direction, but is more than 1 or 2 on Yt direction.
Adopt such structure; even if form a part of component (advance guide rail 55, chassis 51 etc.) of tool replacing apparatus 30 be arranged at floor as shown in Figure 2 under (basement 102) when, do not need to be provided as in the open top portion of basement 102 yet prevent dust, chip disperses measure, the open-close lid (the groove lid in such as known example 2) of protection personal safety measure.Therefore, open-close lid in the front opening high weight of tool changing operation can be eliminated and closing thereafter the operation of this open-close lid, contributing to the shortening time thus and enhancing productivity.And, can prevent from producing during lid opening and closing large noise, operator fatigue in possible trouble.
Can think, tool replacing apparatus 30 can the machine exterior 105 in 11 to Yt directions take out of or move into from this machine exterior 105 between the forcing press shown in Fig. 1, and can carry out carrying-in/carrying-out with the backing plate 14 of forcing press 10 independently of each other to the carrying-in/carrying-out of Yd direction (machine exterior 104).That is, can separately change and the replacing of mould by executing means.The time delay that causes along with the prolongation of activity duration in known example 1 can be eliminated and operation numerous and diverse.
As shown in Fig. 1, Fig. 3, Fig. 5, be arranged at each cross bar loading part 31 of tool replacing apparatus 30 a pair (two) that X-direction is set up in parallel to load resettlement section 33 (upstream side in X-direction is the opposing party 33U, downstream is a side 33D), and two cross bars 61B, 61A can be loaded simultaneously.
Work transfer device 20 and tool replacing apparatus 30 are designed to: between forcing press 11 can depart from (providing) with side's loading resettlement section 33D, 33D collecting (loadings) from work transfer device 20 work as front rail 61B, and next cross bar 61A being loaded into the opposing party and loading resettlement section 33U, 33U can be supplied to work transfer device 20 thereafter.In addition, next cross bar 61A is loaded into the opposing party in machine exterior 105 to load receiving portion 33U in advance.
In order to completely automatically, accurately and rapidly carry out the replacing of new and old (current, next) cross bar and be provided with " loaded " position auto-changeover control portion.This " loaded " position auto-changeover control portion 23 is same with the situation in above-mentioned workpiece pipage control portion, it is program controlled mode, carry out controlling to make it possible to, when providing as front rail 61B, the link maintaining part 25 of work transfer device 20 is positioned side's loading resettlement section 33D, and the link maintaining part 25 of work transfer device 20 is positioned the opposing party loads receiving portion 33U when accommodating next cross bar 61A.In addition, as mentioned above select the loading destination switching cross bar 61 be in two loading receiving portions (33D, 33U) arbitrary use time, next cross bar is set and loads resettlement section assigned switch, and " loaded " position auto-changeover control portion 23 can auto-changeover control according to the information that this switch is specified.
So, just make tool replacing apparatus 30 back and forth advance between 11 and machine exterior 105 1 time between forcing press, just can carry out the operation changing cross bar 61.Working as before front rail 61B (current tool 65B) takes out of machine exterior 105, namely in machine exterior 105, next cross bar 61A (next instrument 65A) can be loaded into cross bar loading part 31 (another loads receiving portion 33U) in advance in forcing press running.The problem (comprise the time back and forth taking out of the tool changing operation moved into for twice is long and operation is difficult) of known example 2 can be eliminated.
Lifting unit 70 is the mechanisms for making cross bar loading part 31 be elevated relative to chassis 51, makes operator can perform the tool changing operation of machine exterior 105 with difficult, not happy posture.Interposition (LM) during low level (LL), the tool changing when chassis that the lifting unit 70 of present embodiment is designed to cross bar loading part 31 lifting to be positioned Fig. 2, Fig. 4 bracket mark is advanced and cross bar provides time a high position (LH) these three grades.
In the diagram, lifting unit 70 is formed by lifting cylinder device (lift cylinder 71, piston 72) and interfix portion 81.That is, lifting cylinder device itself adopts 2 grades of simple structure to switch positioned-lifting modes, and is designed to carry out exactly three grades by combining with interfix portion 81 and switches and locate.Certainly, also multistage switching maybe each position can can be changed by such as servomotor control mode.
Each lift cylinder 71 is arranged in apparatus main body 41 (stationary part 43), and the top of piston 72 is connected with cross bar loading part 31.Link up with corresponding each gear 74,74 that the tooth bar 75,75 on the movable part 44,44 being installed on left and right (Yt direction) shown in Fig. 3 is meshed with the synchronizing shaft 73 extended along Yt direction.Thereby, it is possible to the cross bar loading part 31,31 of left and right is maintained sustained height and can synchronization lifting.Available brake device 77 stops rotating freely of synchronizing shaft 73 to stablize the position after keeping lift adjustment.
Fig. 4 (B) is that cross bar loading part 31 drops to low level (LL), is installed on the state that the snap-latch piece 76 of tooth bar 73 bottom abuts with the low level stop part 88 in stationary part (43).The center of gravity and can realizing that this low level (LL) is reduction of tool changing position 30 is advanced the position of high speed and smoothization.In addition, this low level (LL) is chosen as and can avoids and be arranged on other devices between forcing press 11 to machine exterior 105, the position of disturbing occurs machine.Low level (LL) is lower, more can promote to comprise the integrally-built simplification of chassis of guide rail 55 and the snap fastener of chassis 51 of advancing, and owing to lowering the center of gravity, therefore can realize stabilisation of advancing further.
Fig. 4 (C) is the state that cross bar loading part 31 rises to a high position (LH), snap-latch piece 76 abuts with the high-order stop part 86 in stationary part (43).But, due to work transfer device 20 and forcing press 10 (comprising the mould on the backing plate 14) structure of side, the relation of action, and dependency is had in selection (constructing), be therefore difficult in tool changing operation side allow to change its structure, function.
At this, high-order (LH) is chosen as change work transfer device 20 not being carried out by force to structure, function, and the reception that just can realize the cross bar 61 carried out between forcing press (11) inherent tool replacing apparatus 30 (31) and work transfer device 20 provides the fast of operation and the position of smoothization.By this high position (LH) being chosen as higher position in allowed band, thus the lifting travel of feeding arm 21 (linking maintaining part 25) can be reduced, for reducing the cost of work transfer device 20 and making because lifting time shortens production efficiency raising also be effective.
When directly being taken out of machine exterior 105 under the state that tool replacing apparatus 30 (31) is set in a high position (LH), identical with known example 2, in order to tool replacing apparatus 30 (especially chassis 51) being made more firmly structure and avoiding interference, the device of periphery, machine can in structure, functionally sacrifice a part by force.Therefore, be set as under low level (LL) state shown in Fig. 4 (B) directly from work transfer device 20 side collecting (reception) cross bar 61, considering from the situation of above-mentioned work transfer device (20) side, is improper and disadvantageous.
And, known tool replacing apparatus is such as when known example 2, be situation according to each press machine system and have selected the fixed structure of an admissible position, it is impossible for therefore will carrying out optimization to these two characteristics of characteristic of the characteristic about the handing-over with work transfer device 20 and the carrying-in/carrying-out (advancing) about tool replacing apparatus 30 simultaneously.In most cases, for avoiding and the relations such as peripheral device interfere, the structure simplification of chassis, select alap position as far as possible.
But this consideration mode (selection reference) mainly considers situation, the position of manufacturer one side, lack the consideration of the position of user one side to practice.By observing some actual machine operations in the past, sometimes carry out the burden heavier (greatly) of the operator of tool changing operation in machine exterior 105.That is, when job position is too low, operation to be carried out with bending uncomfortable posture.Also be same reason when job position is extremely too high.Especially current tool 65B is unloaded from the front rail 61B that works as being loaded into cross bar loading part 31, and when becoming next cross bar 61A installing next instrument 65A thereafter, with to unload as front rail 61B (current tool 65B) and compared with the situation being replaced by ready next cross bar 61A (next instrument 65A), its burden greatly.
Here we can see that, machine exterior is changed job position and be set to operator can carry out rapidly tool changing operation without difficulty position with the most comfortable posture, its result contributes to enhancing productivity and reducing costs very much.Therefore, be designed to the interposition (LM) shown in Fig. 4 (A) tool changing operation to be carried out.Interposition (LM) can realize the structure of lifting unit 70, the simplification of function as described above by importing interfix portion 81, and accurately locates.
Interfix portion 81 is by connecting rod cylinder 84 and can be formed by the interposition stop part 83 being arranged at the L-shaped shape rotated centered by the fulcrum shaft 82 on bracket 89.Before and after the lifting action of lifting unit 70 starts, interposition stop part 83 is switched to the level shown in Fig. 4 (A), carrying out position constraint by making to engage (locking) with the snap-latch piece 76 of movable part 44 (tooth bar 75) one in the uphill process of piston 72 in interposition stop part 83, being positioned interposition (LM).Relative to the fixed position of the above-below direction of stationary part 43 this interposition (LM) to be changed simply be set in ideal position by changing bracket 89.
But, no matter when providing as front rail 61B from work transfer device 20 to tool replacing apparatus 30, or when accommodating (reception) next cross bar 61A from tool replacing apparatus 30, all need to make feeding arm 21 (linking maintaining part 25) move up and down ormal weight exactly.Therefore, for the workpiece pipage control (the moving up and down control of such as feeding arm 21) of work transfer device 20, with detect that with limit switch target location is for condition is to compared with positioning control mode after the detection stopping motor positioning, preferably to be equivalent to the pulse signal of displacement for inputting the quantitative positioning control mode of carrying out position control.And the positioning precision of the control mode of the latter is high, structure is also simple.
But the above-below direction relative position of tool replacing apparatus 30 and work transfer device 20 changes sometimes.Above-mentioned change is caused due to mechanical realization, load change, thermal deformation etc.Across shock absorbing device special is directly arranged at pedestal 200, the relative position change on above-below direction also can be produced at work transfer device 20.
Especially as shown in Figure 2, each forcing press 10 (pedestal 205) across can the damping device (such as yielding rubber) 201 of displacement in the vertical direction be arranged on pedestal 200, when work transfer device 20 is arranged on the framework of this forcing press 10 or pedestal 205 by way of parenthesis (being that is indirectly arranged on the situation on pedestal 200 across damping device 201), great changes can be produced.That is, even if the structure of forcing press 10 and work transfer device 20, weight are identical, because the kind of mould and instrument is different, work transfer device 20 (25) changes relative to the above-below direction relative position of tool replacing apparatus 30.So, provide from work transfer device 20 to tool replacing apparatus 30 as front rail 61B, produce impact, noise, and distortion, the breakage of machine may be caused.
For die change frequency higher for Multi-varieties and Small-batch Production press machine system for, this problem must solve.Therefore, as the mechanism of the above-below direction change in location for absorbing tool replacing apparatus 30 (cross bar loading part 31) side and work transfer device 20 (linking maintaining part 25) side, float portion 90 is set, makes when cross bar loads cross bar loading part 31 (33) can automatically move up and down along with the above-below direction change in location of work transfer device 20 (feeding arm 21) side.
In Fig. 5, Fig. 6, float portion 90 is formed by spring 91, bracket 92 and Linear guide (Stationary side Linear guide 35, drawer at movable side Linear guide 95).The bracket 92 of L-shaped shape can be arranged in loading part main body 32 movably by the above-below direction of Linear guide along Fig. 6.This bracket 92 is provided with and loads resettlement section 33D, 33U, utilize spring 91 upwards to exert a force to this bracket 92.That is, loading resettlement section 33D, 33U can be remained quick condition.
The intensity of spring 91 is chosen as in arbitrary situation below all can without the value work as front rail 61B with impacting be supplied to tool replacing apparatus 30 (loading resettlement section 33D).The intensity of spring 91 is such as following value: mold weight in maximum weight when above-below direction location variation is maximum (such as 2 ~ 5mm), float portion 90 can absorb the value of the above-below direction maximum position variable quantity (2 ~ 5mm) of work transfer device 20 (linking maintaining part 25) side.Place is put in lowermost position after absorption, and as shown in Figure 6, tool loading portion 31 (loading resettlement section 33D) is also retained as the state of floating relative to the upper surface of loading part main body 32.In addition, the intensity of spring 91 is values as follows: mold weight in minimum weight when above-below direction location variation is minimum (and even zero), (contact) can be loaded in the value of loading resettlement section 33D by what be held in work transfer device 20 (linking maintaining part 25) as front rail 61B.Wherein, when above-below direction location variation is minimum (and even zero), spring 91 also can be set as with the value of minimum displacement downwards (flexure).
By inserting the spacing hole (not shown) of cross bar 61 side in declining at the spacer pin component 34 shown in Fig. 5, Fig. 6, reliably plane positioning is carried out to tool replacing apparatus 30 (loading part main body 32).
In tandem press machine system 1 preferably, implementation tool replacing options as described below.
In forcing press running:
Each forcing press 10 carry out with respectively when the punch process that front mold is corresponding.After process finishing, the work transfer device 20 of Fig. 2 is delivered to rearmounted forcing press 10D by using current tool 65A (as front rail 61A) to adsorb the workpiece that remain from preposition forcing press 10U.Repeatedly carry out this punch process and workpiece conveying.The X-direction being located at the notch part 101 on flooring element 100 is sized to and the narrower coupling member 48 of the width shown in Fig. 4 can be supplied to run through and can ensure the size of advancing smoothly of chassis 51 and make minimal openings portion, therefore, it is possible to the chip preventing punch process from producing disperses to underground.In this forcing press running (processing), tool replacing apparatus 30 is positioned at the machine exterior 105 shown in Fig. 1, Fig. 2 (A).In machine exterior 105, make lifting unit 70 and interfix portion 81 work, cross bar loading part 31 (33D, 33U) is risen in advance the interposition (LM) shown in Fig. 2 (A) and Fig. 4 (A).
The preparation of next instrument:
In the running of this forcing press, in machine exterior 105, next cross bar 61A (next instrument 65A) is loaded into another loading resettlement section 33U, the 33U shown in Fig. 3 (A) of tool replacing apparatus 30 by operator.That is, next instrument 65A can be prepared in advance.Before and after this, from side's loading resettlement section 33D, a 33D unload first take out of when front rail 61B (current tool 65B) (specifically, be relative to current pressure operation last operation when front rail 61, namely relative to present ongoing pressure process just before pressure process when front rail 61, namely old when front rail 61).In the tool changing end of job of machine exterior 105.In addition, also can from be loaded into a side load receiving portion 33D, 33D unload current tool 65B as front rail 61B, should change and move to the opposing party and load resettlement section 33U, 33U and in this prior cross bar 61B install next instrument 65A and make next cross bar 61A by front rail 61B, thus carry out the tool changing in machine exterior 105.No matter which kind of situation, cross bar loading part 31 (33D, 33U) is all located in the desirable interposition (LM) shown in Fig. 2 (A), Fig. 4 (A), therefore, it is possible to carry out high efficiency operation with comfortable posture without difficulty.Because the time is also fully rich, can accurately and carry out operation safely.Also the errors such as instrument setup error can be stopped.After the end of job, remove interfix portion 81 (interposition stop part 83) and make lifting unit 70 down maneuver, thus cross bar loading part 31 (33D, 33U) is lowered to the low level (LL) shown in Fig. 4 (B) from the interposition (LM) of Fig. 4 (A).All can be delivered between forcing press 11 at any time.
Forcing press stops:
When sending the halt instruction of forcing press running (processing), work transfer device 20 is 11 stoppings between forcing press.As shown in Fig. 2 (A), this work transfer device 20 remains the state as front rail 61B.In the present embodiment, if make feeding arm 21 decline, then link maintaining part 25,25 and stopped into by location corresponding with loading resettlement section 33D, the 33D that after this will move into the tool replacing apparatus 30 come.After forcing press stops, by making each die-changing apparatus 15 move along the Yd direction of Fig. 1, the mould on backing plate 14 can be taken out of machine exterior 104.
Moving into of tool replacing apparatus:
When requiring tool changing, in between forcing press withholding period, make the tool replacing apparatus 30 being mounted with next cross bar 61A keep the left hand half of Fig. 2 (B) to divide the state of shown low level (LL) to advance along Yt direction, to be moved between forcing press 11 from machine exterior 105.The right hand half of Fig. 2 (B) divides and represents the state after moving into.This cross bar 61A move into be with mould take out of contrary action, can implement respectively independently mutually with the carrying-in/carrying-out of mould.The carrying-in/carrying-out of cross bar 61A and the carrying-in/carrying-out of mould are all independently.
Thering is provided of current tool:
Between forcing press in 11, start lifting unit 70, make cross bar loading part 31 (33D, 33U) rise to the high position (LH) shown in Fig. 4 (C) from the low level (LL) of Fig. 4 (B).That is, shown state is divided to switch to its left hand half to divide shown state from the right hand half of Fig. 3 (B).At this, start feeding driving device 22 and work transfer device 20 (feeding arm 21) is declined, making when front rail 61B is close to tool replacing apparatus 30 (loading resettlement section 33D, 33D of a side).Now, even if such as cause the contraction of damping device by mold weight and cause work transfer device 20 downwards change in location be equivalent to the amount of this amount of contraction, cross bar loading part 31 (33D, 33D) under the effect of the float portion 90 (spring 91) of Fig. 6 by floating maintenance, therefore, it is possible to without impact load.Then, make automatic tool exchange (linking maintaining part 25) carry out removing the action of link and remove the link with linking part 62, deserve front rail 61B (current tool 65B) thereby, it is possible to provide to tool replacing apparatus 30.The limited pin component 34 in plan-position limits exactly.If start from tool replacing apparatus 30 side, then can accommodate as front rail 61B (current tool 65B).Empty feeding arm 21 turns back to assigned position, top.
The collecting of next instrument:
Again starting feeding driving device 22 makes work transfer device 20 (feeding arm 21) decline.Before and after it, under the effect in " loaded " position auto-changeover control portion 23, transfer member swings a little, links maintaining part 25 and is switched " loaded " position and becomes with the opposing party that to load resettlement section 33U, 33U corresponding.Therefore, make unloaded feeding arm 21 (linking maintaining part 25) close with tool replacing apparatus 30 (33U, 33U) specifically.Now, also be utilize the effect of float portion 90 (spring 91) to be floated by cross bar loading part 31 (33U) to be held in the position moving the amount being equivalent to above-mentioned amount of contraction downwards, therefore, it is possible to be accurately positioned next cross bar 61A (next instrument 65A).Further, automatic tool exchange (linking maintaining part 25) is made to carry out keeping the action of link and linking with linking part 62 specifically.Thereby, it is possible to provide next cross bar 61A (next instrument 65A) from tool replacing apparatus 30 to work transfer device 20 side.If start from work transfer device 20 side, then can from tool replacing apparatus 30 side collecting (reception) next cross bar 61A (next instrument 65A).Thereafter, feeding arm 21 turns back to assigned position, top.Above, the cross bar 61 changing work transfer device 20 is completed.If be only limitted to the relation with tool changing operation, then can at this moment after using next cross bar 61A (next instrument 65A) of having changed as working as front rail 61B (current tool 65B) and initiation pressure machined again (running).
Taking out of of tool replacing apparatus:
After next cross bar 61A (next instrument 65A) provides, start lifting unit 70, make cross bar loading part 31 (33D, 33U) drop to the low level (LL) of Fig. 4 (B) from a high position (LH) of Fig. 4 (C).That is, shown state is divided to switch to its right hand half to divide shown state from the left hand half of Fig. 3 (B).Thereafter, the tool replacing apparatus 30 making to be loaded with as front rail 61B (specifically for above-mentioned old when front rail 61) is advanced along Yt direction (direction (←) contrary with the direction (→) shown in Fig. 2 (B)) and is taken out of machine exterior 105.This takes out of and also can carry out respectively independently mutually with the carrying-in/carrying-out of die-changing apparatus 15.
The tool changing operation of machine exterior:
During till stop playing when the cross bar needing to carry out next work transfer device 20 is changed from this forcing press, in machine exterior 105, operator is from side's loading resettlement section 33D, 33D unload taken out of as front rail 61B (current tool 65B) (being specifically above-mentioned old when front rail 61 (current tool 65)) and the opposing party shown in Fig. 3 (A) next cross bar 61A (next instrument 65A) (being specifically become new next cross bar 61 (next instrument 65) when front rail in upper once pressure process relative to present ongoing pressure process) being loaded into tool replacing apparatus 30 loads resettlement section 33U, 33U.That is, identical with the situation of above-mentioned (preparation of next instrument) project, the predetermined instrument (next instrument 65A) that the subsequent processing that can realize preparing current pressure operation will use.
Taking out of of die-changing apparatus:
When forcing press stop and requiring more mold exchange, die-changing apparatus 15 is moved along the Yd direction shown in Fig. 1, takes out of backing plate (mould) 14 from forcing press (10) to machine exterior 104.This takes out of can not have any impact to the carrying-in/carrying-out of tool replacing apparatus 30.
The die change operation of machine exterior:
In machine exterior 104, unload to be placed in and backing plate 14 works as front mold, be replaced by next mould.Owing to being separated with the place of tool changing operation, position, the problem (multifarious, the difficultyization of tool changing operation) when therefore this die change operation can not cause known example 1.
Moving into of die-changing apparatus:
The backing plate 14 being mounted with next mould is moved in forcing press (10) from machine exterior 104.Thus, the die change end of job.Tool changing operation and die change operation do not perform successively according to time sequencing, therefore the forcing press dwell time comprising tool changing operation and die change operation can be minimized.Thereby, it is possible to produce next product rapidly.Because time shorten also can reduce cost.
So, according to the present embodiment, it is following replacing options, therefore, it is possible to carry out rapidly the tool changing of tandem press machine system, and increase substantially production efficiency, above-mentioned replacing options is: to be prepared in advance on workpiece replacing device 30 (33U) next cross bar 61A (65A) in machine exterior 105, in forcing press stops, it to be moved between forcing press 11 from machine exterior 105, front rail 61B (65B) will be worked as be supplied to tool replacing apparatus 30 (33D) from work transfer device 20 after this is moved into, then moved into next cross bar 61A (65A) is supplied to work transfer device 20, thereafter, take out of machine exterior 105 by being loaded with the accommodated tool replacing apparatus 30 as front rail 61B (65B) and terminating the replacing operation of instrument.Especially greatly contribute to improving the production efficiency for Multi-varieties and Small-batch Production system.
A kind of following preferred embodiment is also provided, namely, can make between forcing press to the carrying-in/carrying-out of machine exterior 105 pairs of tool replacing apparatus 30 in Yt direction with performing respectively independently mutually from forcing press to the carrying-in/carrying-out of machine exterior 104 pairs of moulds (backing plate 14) in Yd direction, and can simultaneously at the cross bar loading part 31 (33D of workpiece replacing device 30, 33U) load two cross bar 61 (61B, 61A), can will work as front rail 61B in forcing press stops be supplied to tool replacing apparatus 30 from work transfer device 20 and next cross bar 61A can be supplied to work transfer device 20 from tool replacing apparatus 30, can machine exterior 105 be taken out of having accommodated when the tool replacing apparatus 30 of front rail 61B and unload from side's loading resettlement section 33D and deserve front rail 61B, and next cross bar 61A is loaded into the opposing party loads resettlement section 33U, therefore, successfully can implement above-mentioned tool changing method.Device specific easy and simple to operate.
Due to when joining as front rail 61B, by " loaded " position auto-changeover control portion 23, the switching of link maintaining part is positioned side's loading resettlement section 33D, and when accommodating next cross bar 61A, by " loaded " position auto-changeover control portion 23, the switching of link maintaining part is positioned the opposing party and loads receiving portion 33U, therefore can more accurately and rapidly carry out providing and acceptance of cross bar 61.
Because the cross bar loading part 31 of workpiece replacing device 30 can move up and down along with the above-below direction change in location of work transfer device 20 side during loading cross bar 61, therefore cross bar 61 can be loaded without impact.
Because work transfer device 20 is supported on pedestal 200 across damping device 201, therefore can along with the above-below direction change in location of work transfer device side.
Because workpiece replacing device 30 comprises cross bar loading part 31, chassis 55, coupling member 47 and drive division 58 of advancing, can be elevated relative to chassis (pedestal 200), therefore, it is possible to carry out the tool changing operation of machine exterior 105 with nature, comfortable posture.
And due to the high position these three grades when interposition when can be positioned when chassis is advanced by cross bar loading part 31 lifting low level, tool changing and cross bar provide, what therefore contribute to advance stabilisation and the cross bar 61 of chassis 55 provides stabilisation.
Because chassis 55 and drive division 58 of advancing are arranged on the below of flooring element 100, and the size forming X-direction on flooring element 100 narrower and along Yt direction extend a pair notch part 101, coupling member 47 is formed by with the moveable plural tabular component of the state running through notch part 101, even if also can adapt to when the distance therefore between forcing press is less, and easily process chip.
Compare the device of present embodiment and known example, easily carry out entering in forcing press in the same manner as the situation of known example 1, and also can adapt to the narrow system of forcing press spacing in the same manner as the situation of known example 2.There will not be the such die change operation of known example 1 and tool changing operation to carry out successively as sequential, and also there will not be such the moving back and forth for twice of known example 2, therefore, it is possible to make die change operation and tool changing operation fast respectively.And, in tool changing operation, do not need the posture worrying to want difficulty reluctantly.
Compared with the situation of known example 2, both achieved and entered the space (to gap) that facilitation also can increase forcing press side in forcing press.The die change operation carried out at machine exterior Work places can not hinder tool changing operation.Can exchange with mould and carry out tool changing independently.
As compared to the situation of known example 1 with known example 2, next cross bar can be prepared before taking out of when front rail.That is, can with the time of affluence accurately and carefully carry out replacing operation.Also can improve the production efficiency of tandem press machine system entirety tremendously, greatly contribute to the Multi-varieties and Small-batch Production of frequently carrying out die change operation.
Claims (8)
1. the tool changing method of a tandem press machine system, work transfer device can be used from the precondition pressure machine arranged along workpiece throughput direction to rearmounted forcing press conveying workpieces, and tool replacing apparatus can be used to change the instrument be installed on work transfer device, it is characterized in that:
In the machine exterior in the tool changing direction orthogonal with above-mentioned workpiece throughput direction, next cross bar being provided with next instrument is loaded in advance on a side of above-mentioned tool replacing apparatus or the loading resettlement section of the opposing party;
Between the forcing press above-mentioned tool replacing apparatus being loaded with next cross bar being moved to precondition pressure machine and rearmounted forcing press between forcing press withholding period from this machine exterior;
Between this forcing press, the front rail of working as being provided with current tool is supplied to arbitrary loading resettlement section of the zero load of above-mentioned tool replacing apparatus from above-mentioned work transfer device;
Then, next cross bar of the loading resettlement section being loaded into this side or the opposing party is supplied to above-mentioned work transfer device;
The loading resettlement section that its this machine exterior backward takes out of this side or the opposing party is mounted with the above-mentioned tool replacing apparatus when front rail of accommodating from above-mentioned work transfer device, terminates the replacing operation being arranged on the instrument of above-mentioned work transfer device.
2. a tandem press machine system, comprises the multiple forcing presses arranged along workpiece throughput direction; The instrument installed by cross bar is used workpiece to be delivered to the work transfer device of rearmounted forcing press from preposition forcing press; For the tool replacing apparatus changed the instrument be installed on work transfer device, it is characterized in that:
Carrying-in/carrying-out can be carried out to the machine exterior with the orthogonal tool changing direction of above-mentioned workpiece throughput direction to above-mentioned tool replacing apparatus between preposition forcing press and the forcing press of rearmounted forcing press, and above-mentioned carrying-in/carrying-out is performed the carrying-in/carrying-out that the backing plate being mounted with mould carries out mutually independently respectively with the machine exterior to the die change direction orthogonal with above-mentioned workpiece throughput direction;
The cross bar loading part of above-mentioned workpiece replacing device is provided with two the loading resettlement sections be set up in parallel along above-mentioned workpiece throughput direction, and two cross bars can be loaded simultaneously;
Between forcing press withholding period, between this forcing press, the front rail of working as being provided with current tool arbitrary loading resettlement section unloaded above-mentioned tool replacing apparatus can be supplied to from above-mentioned work transfer device, and from the loading resettlement section of a side of above-mentioned tool replacing apparatus or the opposing party, next cross bar being provided with next instrument above-mentioned work transfer device can be supplied to;
Can will accommodate when the above-mentioned tool replacing apparatus of front rail takes out of the machine exterior in tool changing direction, and can unload when front rail in the loading resettlement section of this machine exterior from the opposing party or a side and thereafter next cross bar is loaded into the loading resettlement section of a side or the opposing party.
3. tandem press machine system according to claim 2, is characterized in that:
Be provided with " loaded " position auto-changeover control portion, when providing when front rail, by this " loaded " position auto-changeover control portion, the link maintaining part of above-mentioned work transfer device is switched either party the loading resettlement section being positioned above-mentioned zero load, and when accommodating next cross bar, the link maintaining part of above-mentioned work transfer device being switched by this " loaded " position auto-changeover control portion the loading resettlement section that is positioned one side or the opposing party and being loaded with the loading resettlement section of next cross bar.
4. the tandem press machine system according to Claims 2 or 3, is characterized in that:
The above-mentioned cross bar loading part being designed to above-mentioned workpiece replacing device can move up and down along with the above-below direction change in location of above-mentioned work transfer device side during the above-mentioned cross bar of loading.
5. tandem press machine system according to claim 4, is characterized in that:
Above-mentioned work transfer device is directly supported on pedestal, or is indirectly supported on pedestal across the damping device of above-below direction position changeable.
6. the tandem press machine system according to Claims 2 or 3, is characterized in that:
Above-mentioned workpiece replacing device comprises above-mentioned cross bar loading part, the chassis can advanced along the guide rail of advancing extended along above-mentioned workpiece replacing direction, for above-mentioned cross bar loading part is linked to the coupling member of this chassis and drive division of advancing, and above-mentioned cross bar loading part can be elevated relative to chassis.
7. tandem press machine system according to claim 6, is characterized in that:
Above-mentioned cross bar loading part lifting can be positioned the high position these three grades during low level, the interposition when the tool changing of above-mentioned machine exterior and the cross bar between above-mentioned forcing press handing-over when chassis is advanced.
8. tandem press machine system according to claim 6, is characterized in that:
Above-mentioned chassis and above-mentioned drive division of advancing are arranged on the below of flooring element, narrower and a pair notch part that be that extend along above-mentioned tool changing direction of the size that this flooring element forms above-mentioned workpiece throughput direction, above-mentioned coupling member can be formed along the plural tabular component of above-mentioned tool changing direction movement by with the state running through notch part.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110002643.6A CN102581121B (en) | 2011-01-07 | 2011-01-07 | Tool replacing method of tandem press system and tandem press system |
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| CN201110002643.6A CN102581121B (en) | 2011-01-07 | 2011-01-07 | Tool replacing method of tandem press system and tandem press system |
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| CN102581121B true CN102581121B (en) | 2015-02-11 |
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