CN1045933A

CN1045933A - Stamping machine is used in deep-draw (drawing)

Info

Publication number: CN1045933A
Application number: CN 89101924
Authority: CN
Inventors: 吕镇平
Original assignee: YUE SHUN INDUSTRY Ltd Co
Current assignee: YUE SHUN INDUSTRY Ltd Co
Priority date: 1989-03-29
Filing date: 1989-03-29
Publication date: 1990-10-10
Also published as: GB9003460D0; GB2230219A

Abstract

Stamping machine is used in a kind of deep-draw (drawing), its mat is the bent axle cam mechanism of two groups of interrelated actions up and down, cooperation by this mechanism respectively one of drive respectively top shoe and be mounted on can slide according to hierarchical sequence under the fixed bed board under the relative lifting moving of slide block group, and in can once rotatablely move in the bent axle cam mechanism (i.e. power stroke), being opposite to sheet metal on the concentric set of molds imposes and cuts material, a punching press (pull) moulding, the secondary punch forming, three punch formings ... Deng repeatedly punch forming, cut the limit, integer, move back a succession of processes such as mould, and become deep vessel shape manufacturing press-molded products.

Description

Stamping machine is used in deep-draw (drawing)

The present invention relates to a kind of deep-draw (drawing) and use stamping machine, relate in particular to a kind of mat bent axle cam mechanism of two groups of interrelated actions up and down, cooperation by this mechanism respectively one of drive respectively top shoe and be mounted on can slide according to hierarchical sequence under the fixed bed board under the relative lifting moving of slide block group, and in can once rotatablely move in the bent axle cam mechanism (i.e. power stroke), being opposite to sheet metal on the concentric set of molds imposes and cuts material, a punching press (drawing) moulding, the secondary punch forming, three punch formings ... Deng repeatedly punch forming, cut the limit, integer, move back a succession of processes such as mould, and stamping machine is used in the deep-draw (drawing) that becomes deep vessel shape manufacturing press-molded products.

Look at present generally for as the outer hub of air filter tubular, the punching out of deep-draw (drawing) formed products of deep vessel classes such as oil can, jar, pot, owing to be subjected to the restriction of thickness, the extensibility of material, the rate of extending (pull rate), must be divided into repeatedly usually punching course promptly cut material, from shallow to deep more than inferior punch forming, cut a plurality of process such as limit, integer, the material returned-and finish.For implementing this punch forming operation, usually system uses known punch press or press, adopt " unit single action " to cooperate the mould of many group differences, material is cut material according to required process number separately by criticizing the different moulds that change the outfit one by one, repeatedly action such as punch forming and deburring, not only the working time is long, operating efficiency is very low, and repeatedly punching course and used different Mold Makings are with to install the error accumulation that is produced very big, add that whenever the work hardening that moves to the work package that time to wait of the work package between next punching course and difference variation (the processing work package of giving birth to heat is subjected to the cooling of air and the variation that produces temperature) caused from last punching course causes the deterioration or the reduction of the quality of finished product, so production efficiency is very low, is not suitable for a large amount of productions.For being fit to a large amount of production, realize one-stop operation, and increase work efficiency, usually coupling and punching course are arranged in a row with the punch press of number, all install on each punch press with one group of mould, and with material prior to after the first punch press punching processing, move into the processing of second punch press, and then move into the 3rd punch press ... finish finished product at last, promptly adopt general so-called " the multimachine division of labor " system, so be linked to be always because of each punching course, can subdue die change and have, treat the worker, wait time of expecting, and all stamping press is several can finish in the time, and the advantage that can increase work efficiency, only the difference of the precision of each punch press and every pair of mould are being made, the accumulation mismachining tolerance of installing that error caused is very big, and work package whenever moves to from last punch press and is subjected between next punch press outside shortcoming that property at interval repeatedly is subjected to the reduction of the work hardening that cooling caused of air and quality after punching press frictional heat and the demoulding still exists, bring plant to increase in addition, the factory building area occupied need increase, and electrification such as need increase at the new problem that equipment investment heightens.

Be to reduce the punching course number of shell and reduce the method for using punch press number and area occupied, someone to adopt composite die to cooperate the double-lift crankshaft punching machine of tradition or bed type punch press and in a stroke, finishing the punching press of several processes continuously.Yet, because of being subjected to the structure of traditional punch press and the restriction of action, usually at most only can finish and cut material, one time punching molded and secondary punch forming, or the biscuit that will shear in advance imposes once three processes to three punch formings, and can't realize comprising and cut time forming process more than limit, the integer, so after this continuous punch forming, still need another punch press of mat or same punch press and another pair mould to be cut limit and integer.Though the mode of planting can be merged into the part process process and reduce required total number of passes of crossing according to this; but all processes can't be merged into one; and still have as outside the above-mentioned deficiency place; adopt known composite die all have acting in opposition spring so that counterdie be subjected to down after stamping press; its elastic recovering force of mat and order about the action of counterdie or punching pin; so that the required drive of working is required to be the drag that can overcome this spring and with the material strength of punch forming in addition; therefore the corresponding increase of used punch press; mould also must resist the impulse force of anti-this punch press and must thickening strengthen, and causes the increase of equipment and die cost.In addition the double action punch press of tradition its by the stroke of the slide block of crank-driven because of be correlated with by the stroke of the wrinkle resistant binder spare of cam driving and the restriction on the structure, can't do too dark punching press, lift an example, the general traditional double-lift punch press that uses composite die, when if stroke is 200mm, its finished product only can have an appointment 40% the degree of depth (highly) that is 80mm, all the other strokes then do not have effect, so desire not have possibility to commonly use the deep-draw that punch press realizes that continuously the degree of depth reaches ram travel long cylindrical shell over half deeply at all.

The people is also arranged in view of continuously being applied to the punch press operation with continuous punching out motor iron core plate along what send mould, eyelets etc. are to the utmost general, if adopt big large-scale stamping machine of stroke and tonnage or hydraulic type punch press to cooperate the horizontal progressive die of forming by many groups mould to should be feasible method, and in fact also be feasible, factory is as long as the configuration of mat mould can solve all, needn't change tradition machinery, appear good,, this kind progressive die method for punching is not suitable for deep-draw processing but being only applicable to the shallow goods that dash, Gai Yin needs in operation and will transfer one by one through the long material mat stretching of several process processing or towards method along continuous straight runs such as recessed, and front and back process gained labor and materials degree of depth depth difference, desire to make darker part to cross mould smoothly and advance, in fact have any problem, even may be so not yet.

The inventor finishes the special-purpose stamping machine that this case is suitable for deep-draw (drawing) finally through long-term hammer away, trial-production, modification, test.

Be that purpose with the present invention is to provide a kind of deep-draw stamping machine, have the bent axle cam mechanism of up and down two groups of mutual interlocks and two groups of mechanism driving and level arrangement and slide block group under can moving up and down according to level about slide block and one group on moving up and down thus, finish and cut material and can in a power stroke, be opposite to material on the concentric set of molds, once to repeatedly punch forming, cut limit, integer, move back a succession of punching process person such as mould.

The present invention's a time purpose is to provide a kind of deep-draw stamping machine, its simple structure, make easy, working power is little, and can expect repeatedly punch forming with cutting, cut the limit, the action of integer, the material returned etc. is once finished and receive the effect of time and labour saving.

Another object of the present invention is to provide a kind of deep-draw stamping machine, can be in a punch press actuating length punching out degree of depth reach deep vessel type finished product near the trip length, and required tonnage or power are commonly used punch press or hydraulic press much smaller than what use composite die or continuous mould.

The present invention's a purpose again is to provide a kind of deep-draw stamping machine, because the finished product of institute's punching out can be finished in same punch press and same pair of mould continuously from material to finished product, do not have the loss of the time treat worker, handover and be subjected to the cooling of cold air, simultaneously this finished product tie up on the same axial line and same processing conditions under the person of finishing, so attainable accuracy height, product deep-draw moulding product of fine quality.

The present invention's another purpose is to provide a kind of deep-draw stamping machine, can fully reach and effectively utilize punching stroke to reach 90 percent, and realize having the deep-draw operation of the working depth scope that the traditional any type punch press with one stroke can't be reached.

The present invention's other purposes, effect and characteristics can obtain further understanding by the detailed description of following conjunction with figs..

Drawing is simply described as follows:

Fig. 1 is the summary part positive view of deep-draw of the present invention with stamping machine one embodiment;

Fig. 2 is the present invention's a summary side elevation;

Fig. 3 is the perspective view of bent axle cam mechanism on the present invention;

Fig. 4 is the perspective view of bent axle cam mechanism under the present invention;

Fig. 5 (A), 5(B) be the cutaway view of mould therefor one embodiment of the present invention;

Fig. 6 is the photo series of the present invention's upper and lower bent axle cam mechanism;

Fig. 7 is the present invention's stroke of upper and lower bent axle cam mechanism and the photo series of time.

As Fig. 1, shown in Figure 2, the present invention's deep-draw mainly is by right cylinder C type frame 1 with stamping machine, be located at the driving machine 2 on the frame 1, be located at the transmission device 3 of the sidewall of frame 1, be located at before the frame 1 the protruding axis mechanism 4 of bent axle on the square top, be located at before the frame 1 bent axle cam mechanism 4 on the square top, be located at bent axle cam mechanism 5 under the forward lower part of frame 1, can be located at slide block 6 on the bent axle cam mechanism below linkedly, can be located at down bent axle cam mechanism 5 tops linkedly and be level be spaced under slide block group 7, and the fixed bed platform 8 of being located at sliding block group 7 tops constitutes.

Frame 1 is that general plan central authorities have a working space before adopting front is seen as a type side and sees steel plate or the steel frame construction body that then slightly is the C type, driving machine 2 is the employing infinite variable speed motor in the present embodiment, and be the end face that is fixedly arranged on this frame 1, but as adopt other prime mover and be located at any position on other frames that are suitable for transmission 1, even also do not have away from frame 1 part can not, this is easy to the person of thinking of by general dealer, so will not give unnecessary details.

Transmission device 3 is to be located on two sidewalls of frame 1 and to be used in the future that the revolving force of self-driven motivation 2 is conveyed to, following bent axle cam mechanism 4,5, this device 3 is to comprise: tie in the drive pulley 31 of the main shaft 21 of driving machine 2 always, one is driven pulley 33 on the flywheel by driving belt 32 and by the double as of these belt pulley 31 transmissions, one is driven pulley 35 under the flywheel by driving belt 34 and by the double as that this belt 33 is taken turns transmission, one is located at the brake clutch 36a between upper belt pulley 33 and its power transmission shaft 30a, one is located at down the brake clutch 36b between belt pulley 35 and its power transmission shaft 30b, and gear train 37 reaches by gear train 38 under driven pulley 35 drives down on being driven by last driven pulley 33.The group 37 that cogs comprises again: one is fixedly arranged on the driving gear 37a of the power transmission shaft 30a of upper belt pulley 33, one be fixedly arranged on that jackshaft 39a goes up and and driving tooth, the driven gear 37b of wheel 37a engaged transmission, another a gear 37c and that is fixedly arranged on this jackshaft 39a equally be fixedly arranged on that one of bent axle 41 of bent axle cam mechanism 4 is held and with the final gear 37d of this gear 37c engaged transmission; 38 of lower tooth wheels comprise: one is fixedly arranged on down the driving gear 38a of the power transmission shaft 30b of driven pulley 35, one be located at that jackshaft 39b goes up and with the driven gear 38b of this gear 38a engaged transmission, one is located at the last gear 38c of same jackshaft 39b, one be located at that another jackshaft 39c goes up and with the gear 38d of gear 38c engaged transmission, one be located at that one of bent axle 51 that the last gear 38e and of same axle 39c is located at down bent axle cam mechanism 5 is held and with the final gear 38f of gear 38e engaged transmission.So when motor 2 clockwise directions of driving machine rotate, then go up crank mechanism 4 and do in the same way deceleration rotation by the deceleration transmission of gear train 37 on the transmission device 3, and bent axle structure 5 is to do the oppositely rotation of deceleration by the deceleration transmission of lower tooth wheels 38 down.In fact as two

gear trains

37,38 are arranged in the same side in the present embodiment, the group that cogs 37 is a upper left-hand of being located at frame, and 38 of lower tooth wheels are located at right side under the frame 1, and, or two location swaps, all belong to feasible; That goes up again that crank mechanism 4 and the velocity ratio of following crank mechanism 5 comply with design needs the former should be higher than the latter, and generally then with 2: 1-8: 1 is optimum.In addition, as transmission device 3 as use that the feasible transmission device of sprocket wheel and chain device or other all do not have instead can not.

Last bent axle cam mechanism 4 is that square top also can rotate by cogging group 37 transmissions before being located at frame 1, this mechanism 4 is as Fig. 1 and shown in Figure 3, system by: an end is installed with the crank axle 41 of above-mentioned final gear 37d, on the one rotatable crank-pin 42 of being located at crank axle 41 freely and can regulate the shank of bolt 44 that is bolted in one of this connecting rod 43 end freely and a pair of 45,45 formations of cam that are on the crank axle 41 that symmetry shape keeps being fixedly arranged at interval crank-pin 42 both sides with the connecting rod 43, of 41 one-tenth extensions vertically downward of crank axle.

Following bent axle cam mechanism 5 is to be located at the forward lower part of frame 1 and just relative up and down with last bent axle cam mechanism 4, and can and rotate by 38 drivings of lower tooth wheels, this mechanism 5 as Fig. 1 and system shown in Figure 4 by: an end is installed with the crank axle 51 of above-mentioned final gear 37f, on the one rotatable crank-pin 52 of being located at bent axle 51 freely and with the connecting rod 53 of 41 one-tenth extensions vertically upward of crank axle, one can shake and is connected with push rod 54a under one of this connecting rod 53 end freely, one be linked on the lower push rod 54a by spherojoint 50 among centre push rod 54b, several to be to be symmetry shape about the center oneself is set in turn in cam set 55 on the crank axle 51 outside to inside with connecting rod 53,56,57 constitute.In the present embodiment, this cam set system comprises: a pair of first

less cam

55,55 of body of being located at nearly frame two madial walls of crank axle 51, a pair ofly be positioned at this to side within first cam 55 and three pairs of cams of the 3rd cam 57,57 of the body maximum that bigger second cam 56,56 of body and a pair of left and right sides are close to second cam 56,56 and connecting rod 53, but in fact cross number of passes according to deep-draw and look material therefor kind, character, thickness etc. needs and increase and decrease its reason and even be obvious.In addition, the top of the length-diameter part of a pair of the 3rd cam 57 is embedded with a pair of projection 58,58 near medial margin, and its effect is detailed later.

Top shoe 6 is that slide rail 11 can slide up and down and is located at freely under the bent axle cam mechanism 4 on the frame 1, this slide block 6 be the set ball-and-socket member of its upper central recess of mat 61 with shank of bolt 44 under the spherojoint that formed of end bulb 44a and fusing with connecting rod 43, the both sides that are positioned at spherojoint again in this recess are mounted with a pair of spring 62, spring 62 lower ends are provided with a contact plate 64, the side is provided with push strut 65 under the contact plate 64, can be connected in above-mentioned push plate 94a.Being positioned on slide block 6 end faces of recess both sides with shank of bolt 44 is that the center is symmetry shape and is interval with a pair of depression bar 63, its upper end have roller 63a just with above-mentioned cam 45 can assist relative.

Sliding block group 7 is to be located at before the frame 1 below and to be positioned at down on the bent axle cam mechanism 5, this slide block group 7 be by: one is fixedly arranged on bed board 71 on two madial walls of frame 1 with two ends, one with two ends be fixedly arranged on equally frame 1 two madial walls and with upper bed board 71 keep one relative up and down at interval under bed board 72, two one-tenth parallel settings are fixed at, lower bed board 71 or 72 s'

upright side plate

73,73, several (present embodiment are four) keep appropriate intervals to be multi-level and can to slide up and down along two side plates 73 being disposed at freely,

lower bed board

71,72

slide block

74a, 74b, 74c, 74d, several to (present embodiment is four pairs) upper end respectively apical grafting in above-mentioned each slide block 74a～74d and the lower end has respectively that a roller 75 can revolve respectively that axle is connected to down bent axle cam mechanism 5 freely each to cam 55,56, the push rod 76a of the length difference of 57 cam surface, 76b, 76c, 76d.Above-mentioned again push rod 76d system is connected within the cam surface of the 3rd cam 57 side and just on the rotational trajectory of projection 58, so when cam 57 rotates, hold under this push rod 76d and can step up this projection 58 and rise.

Fixed bed 8 is to be fixedly arranged on the upper bed board 71 and to be relative up and down with top shoe (being pulldown bed) 6, and the mould 9(shown in the imaginary line contains upper and lower mould) be to be installed on pulldown bed 6 and the fixed bed 8.

Above-mentioned central push rod 54b slidably runs through upper and

lower bed board

71,72 freely, fixed bed 8 face with each slide block 74a～74d and on the outstanding bed 8 in top, push rod 76a then runs through lower bed board 72 equally sliding freely again,

slide block

74d, 74c, 74b and top apical grafting are in ground floor slide block 74a, push rod 76b runs through lower bed board 72, slide block 74d, 74c and top apical grafting are in second layer slide block 74b, push rod 76c run through lower bed board 72 and the top apical grafting in the 4th layer of slide block 74d, push rod 76d run through lower bed board 72 and slide block 74d and the top apical grafting in the 3rd layer of slide block 74c as shown in Figure 1.

Can cooperate one of assembling die 9 that this machine uses for example shown in Figure 5, system is made of patrix 9A and counterdie 9B, patrix 9A comprise several according to the required punching out process of shell from lower to upper the die cavity diameter by big gradual change the little and degree of depth by the dark overlapping

mould

91,92,93,94 of shallow gradual change with concentric arrangement, and be provided with again in the die cavity of the superiors' mould 94 one by the pushing of push plate 94a and push strut 94b and can in mould 94, move up and down cut mould 95; Counterdie 9B then comprises a ring-type external mold 96, one be embedded on the external mold 96 the end periphery and slightly project upwards and inner peripheral as shearing the ring-type grooving 96a of rapidoprint with otch, and one group of each mould 91～94 with patrix 9A is corresponding and by the ring-type punch die 97a～97d that is the configuration of concentric fit shape outward in oneself, an and drift 98 that is installed in central push rod 54b top, end then is connected with many push rod 99a～99d respectively and extends downwards under each punch die 97a～97d, under these push rods 99a～99d end then respectively apical grafting above slide block 74a～74d.Only slide block 74c, the 74d transposition of

push rod

99c and 99d palpus, promptly push rod 99c is crimped on slide block 74d, and push rod 99d then is crimped on slide block 74c.

Below deep-draw of the present invention as mentioned above is described as follows with the operating state of stamping machine when manipulating with regard to its structure:

When driving machine 1 starts, upper and lower two

belt pulleys

33,35 are promptly done synchronously and rotation in the same way with the transmission of driving belt 32,34 by drive pulley 31, then go up bent axle cam mechanism 4 be by the transmission that the group 37(that cogs contains gear 37a～37c) slow down and do with belt pulley 33 in the same way and than the rotation of low speed.On the other hand, following bent axle cam mechanism 5 be by the transmission that lower tooth wheels 38(contains gear 38a～38f) slow down and do with belt pulley 35 oppositely and than the rotation of low speed, because last bent axle cam mechanism 4 is to be set at 4 to 1 persons with the velocity ratio of following bent axle cam mechanism 5 in the present embodiment, bent axle cam mechanism 4 rotation single-revolutions are promptly 360 ° the time in the event, and 5 of following bent axle cam mechanisms are promptly 90 ° of row four/single-revolutions only.In fact, this velocity ratio can be chosen as suitable any than number according to work package and working condition, is detailed later as for both start relation.

Below please refer to the explanation of Fig. 5, Fig. 6 and Fig. 7.

The operating conditions of stamping machine of the present invention.When last crank mechanism 4 and when arriving bottom dead centre b from top dead-centre a Rotate 180 °, be placed in mould 9A on the top shoe 6 and promptly carry over slide rail 11 with the interlock of shank of bolt 44 with slide block 6 and descend, and will place labor and materials W above the counterdie 9B to shear and be state shown in Fig. 5 (A) by connecting rod 43.When slide block 6 drops to bottom dead centre, the major diameter end of cam 45 is pressed on just one of on the bent axle 41 the roller 63a of two depression bars, 63 upper ends of slide block 6, the air type brake clutch 36a of belt pulley 33 is that mat electromagnetic valve switch (not shown) cuts off its coupled relation automatically with the control air pipe line simultaneously, crank mechanism 4 is promptly slack, and slide block 6 promptly remains in the position that is crimped on dead point b under the counterdie B.

When last crank mechanism 4 rotates to bottom dead centre b simultaneously from top dead-centre a as described above, 5 of following crank mechanisms are upwards done reverse rotation from bottom dead centre c, because the velocity ratio of upper and lower crank mechanism 4,5 is 4: 1 in the present embodiment, therefore go up crank mechanism 4 and rotate 180 ° and when arriving bottom dead centre b, 5 of following crank mechanisms only rotate 45 ° from bottom dead centre c.Going up subsequently crank mechanism 4 stops operating because of the effect of clutch 36a, but 5 of following crank mechanisms continue rotation because of clutch 36a still keeps coupling, this moment, the major diameter cam surface 55a of first cam 55 promptly up pushed up upper strata slide block 74a by push rod 76a, slide block 74a is then by ejector pin of die set 99a and with first punch die 97a roof pressure and entering in the die cavity of patrix 91 up, and labor and materials W is imposed punch forming for the first time, this moment, the stroke of punch die 97a was Si; Along with being rotated further of crank mechanism 5, just finish first punch forming after a while towards chinaberry 97a, the major diameter cam surface 56a of second cam 56 promptly up heads into the second punch die 97b in the patrix 92 by push rod 76b, second layer slide block 74b, push rod 99b, and the workpiece W of punching press is for the first time imposed punch forming for the second time; This moment, the stroke of punch die 97b was S; Continue it, the major diameter cam surface 57a of the 3rd cam 57 is promptly by push rod 76c, the 4th layer of slide block 74d, push rod 99c and simultaneously up head into patrix 93 in together with the 3rd punch die 97c that is overlapped in this punch die 97d the 4th punch die 97d, and workpiece W is imposed punch forming for the third time, this moment, the stroke of punch die 97c was S; At this simultaneously, the crankpin 52 of following bent axle 51 has entered the position of the nearly dead point d in top, so central drift 98 is to be situated between to be pushed in the patrix 94 by connecting rod 53, push rod 54a, 54b, and workpiece W is imposed the 4th punch forming, till bent axle rises to top dead-centre d and finishes one stroke S; Just simultaneously in this action, 58 promotion push rods of the projection that is higher than cam surface 57a 76d of cam 57, and Jie heads into cutting in the mould 95 of patrix 94 by the 3rd layer of slide block 74c and push rod 99d the 3rd punch die 97 is being resisted the strength of spring 62, and cooperate the otch of two moulds to cut the limit action so that the punch forming part is imposed, the profiled member W that 98 continuation of central drift simultaneously will be cut behind the limit pushes in the patrix 94, and finishes integer action state shown in Fig. 5 (B); This at present crank mechanism 5 risen to top dead-centre d, and beginning is to bottom dead centre c rotation, to finish the motion of second half rotation.

Just rise to top dead-centre d simultaneously at following crank mechanism 5, last crank mechanism 4 is promptly because of assisting the effect of moving magnetic valve (not shown) that clutch 36a is coupled once again mutually with following crank mechanism 5, so last crank mechanism 4 promptly begins from bottom dead centre b toward top dead-centre a rotation, top shoe 6 is to drive patrix 9A by connecting rod 43 with screw rod 44 to rise by this, then reply original position, and the release of mat clutch and stop motion, on the one hand down 5 of crank mechanisms rotate to bottom dead centre c from top dead-centre d, so, otherwise through moving mutually with aforementioned, slide block 74a～74d descends along with falling under push rod 76a～76c, each punch die 97a～97d also descends one by one, central drift 98 is also by connecting rod 53 and push rod 54a simultaneously, move under the 54b and descend, at last, each punch die 97a～97d and drift 98 are in the income counterdie 96, simultaneously the goods of finishing through deep-draw in mould 94 then by the recuperability of spring 62 by push strut 65, the pushing of 94b and push plate 94a and be pushed downwards out and finish and move back mould action.And recover state as Fig. 5 (A) shown in, the also position of upper and lower starting point a and c and finish a working cycles extremely separately of upper and lower crank mechanism 4,5 simultaneously.

Previous embodiment is through cutting material with regard to labor and materials, four punch formings, cut the limit, shaping, moving back the operational scenario that a plurality of processes such as mould accomplish without any letup is illustrated, but must additional disclosure at this, the application that is the present invention is not limited to this, if to needing only three times or the i.e. punching press of the goods of foot of secondary punch forming, the present invention must not change crank mechanism 4, still can handle very skillfully under 5 the situation, with three punch formings, can unload the outside two push rod 76a, and not transmitting the first slide block 74a, the motion that makes first cam 55 do not get final product, if during the secondary punch forming, then detachable

lower push rod

76a, 76b, and make first, two cams 55, the 56 neither movable slider 74a that do, 74b gets final product.Certainly mould therefor 9 should cooperate required and adopt suitable combination die.The present invention still has characteristics, even work needs gone up and desire stamping machine of the present invention be used for supporting generally as the punching operation of the central layer of motor rotor or stator etc. single moulding or shallow towards etc. during operation, as long as make down clutch 36b discharge its couple state, and the couple state of clutch 36a is gone up in reservation, then descend the crank mechanism 5 static shapes of maintenance and only go up crank mechanism 4 and keep continuous reciprocating motion, just like general crank type or double-lift punch press, and feasible general punch press operation, so can increase the present invention's application surface, do not have as special machine often be subjected to mechanism or the last restriction of design, and only be fit to special purpose, can't make the shortcoming of general service.

Stamping machine of the present invention is because having structure as above, that can not only realize in the past that the single machinery of mat only always can't realize cuts material certainly, the Multi-step forming moulding, cut the limit, the deep-draw operation that integer to a succession of processes such as moving back mould is once finished in an actuation cycle continuously, and workpiece is discharged to becoming finished product from sending into machinery, all in same pair of mould in one of of short duration actuating length the person of finishing, so there is not the temperature effect for the treatment of the loss of worker's supply delay time and being subjected to the cooling of peripheral air, the work hardening that machining causes in the time of also can avoiding long reaches and is not subjected to different machineries, accumulated error on different moulds and the machining accuracy that various process caused, therefore production efficiency can improve several times, and the gained finished product accuracy is non-Normal high, splendid, the surperficial dead smooth of quality is attractive in appearance; Moreover to get the required power of same deep-draw products formed little a lot of far beyond commonly using machine made for power that the present invention takes, so can save the energy, mould can adopt thinner littler material jointly, and saves the molding expense, and can prolong die life; In addition, the movement travel of the present invention's crank mechanism can fully be used, it utilizes length can reach about 90 percent of the trip, at most only reach more than about 40 percent big twice far beyond commonly using punch press, so the volume of machinery also can reduce, also can make simultaneously this function finish the punch forming operation of the working depth that onesize traditional punch press can't finish with same machinery; Add the present invention's simple structure, processing ease, with low cost, at any time can use as general punch press again that it is one very novel unique and have a deep-draw stamping machine of practical value to can be rated as.

More than be only to be illustrated with regard to this case one specific embodiment, but be not limitation the present invention, do not breaking away from lower all modifications, change, displacement of carrying out of spirit of the present invention, use the devices such as sprocket wheel, key bar or gear instead such as transmission device, upper and lower gear train is used instead in the same way or he of reverse rotation plants the gear train of combination, spring assembly in the top shoe is used the hydraulic type device instead, or oil pressure one spring set composite etc. all should be included within the following claim part of this case.

Claims

1, a kind of deep-draw stamping machine is characterized in that including;

One frame;

One is located at the driving machine on the frame;

One transmission device is located on the frame and is driven by above-mentioned driving machine;

Bent axle cam mechanism on one crosses on the frame and by above-mentioned transmission device transmission;

Bent axle cam machinery once crosses under the frame and is parallel with the above-mentioned bent axle cam mechanism of going up, and is lower than the rotating speed rotation of going up bent axle cam tool structure by above-mentioned transmission device transmission as rotating speed equally;

One top shoe is vertical configuration with the bent axle of last bent axle cam mechanism and is connected with in one of crankshaft-link rod end, and can be driven and be pumped along the set slideway in frame both sides by this bent axle cam mechanism;

One lower skateboard group, become parallel with the bent axle of following bent axle cam tool structure and become relative up and down shape with the level arranged spaced with top shoe, and by end under the push rod group respectively slidably apical grafting can drive and pump at interval by this mechanism in each cam of bent axle cam mechanism with different time;

One bottom fixed bed is located on the lower skateboard group and directly relative with top shoe.

2, deep-draw stamping machine according to claim 1, it is characterized in that this transmission device system by the deceleration device of two groups of different speed ratios with bent axle cam mechanism in the transmission respectively and play bent axle cam mechanism doing in the same way or the rotatablely moving of reverse different rotating speeds, and go up the rotating speed of bent axle cam mechanism and greater than the rotating speed of following bent axle cam mechanism.

3, deep-draw stamping machine according to claim 2 is characterized in that rotating ratio of bent axle cam mechanism and following bent axle cam mechanism is between 2 to 1 to 8 to 1 on this.

4, deep-draw stamping machine according to claim 1, it is characterized in that bent axle cam mechanism is to comprise on this: a bent axle, one is located at the connecting rod of the crankpin on this bent axle, a pair ofly is installed in that the both sides that are positioned at connecting rod on the bent axle keep the appropriate intervals symmetry and the cam established.

5, deep-draw stamping machine according to claim 1, it is characterized in that this time bent axle cam mechanism is to comprise: a bent axle, one is located at the connecting rod of the crankpin on this bent axle, and at least two pairs are the cam that the left-right symmetry shape is outwards established by be staged gradually littlely greatly successively from the crankpin both sides.

6, deep-draw stamping machine according to claim 1, it is characterized in that this lower skateboard group system comprise majority be level be located at play face under the fixed bed be on shape sets firmly relatively at interval, between the lower bed board and be connected to respectively by an end on each cam of above-mentioned bent axle cam mechanism down and the other end respectively apical grafting on the push rod of this slide plate respectively, move down, and liftable moves freely.

7, deep-draw stamping machine according to claim 1, the power input side that it is characterized in that this upper and lower bent axle cam mechanism are respectively to be provided with a brake clutch, in order to control the motion of upper and lower bent axle cam mechanism respectively.

8, deep-draw stamping machine according to claim 1, when it is characterized in that connecting rod that this bent axle cam mechanism is driven is reduced to bottom dead centre, the automatic release of its clutch is checked this crank mechanism simultaneously and is kept transfixion; But when the bent axle cam mechanism rose to top dead-centre subsequently instantly, then this clutch engaged release brake simultaneously once more and this crank mechanism is moved once more, and rises to top dead-centre.