CN208245613U - A kind of linkage structure of progressive die punching machine - Google Patents

Abstract

The utility model discloses a kind of linkage structures of progressive die punching machine, belong to progressive die punching machine field, solves the driving structure lacked in linkage to feeding structure, to need to install the driving structure that feeding structure is operated alone, and then lead to the complicated problem inconvenient for use of progressive die punching machine structure, its key points of the technical solution are that including rack, rack vertical sliding is connected with cope plate, rack is fixedly connected with lower template, gantry rotation is connected with crankshaft, crankshaft drives cope plate vertical shift, rack is equipped with the driving motor of driving crank rotation, lower template is equipped with the feeding structure and demolding structure of conveying blank, gantry rotation is connected with transmission shaft, crankshaft drives transmission shaft rotation, feeding structure and demolding structure with transmission axis connection, the utility model is structurally reasonable, the torque of crankshaft is transferred to feeding structure by transmission shaft and is taken off Mode structure, to achieve the purpose that while drive feeding structure, demolding structure and progressive die work.

Description

A kind of linkage structure of progressive die punching machine

Technical field

The utility model relates to a kind of progressive die punching machines, more specifically, it relates to a kind of linkage knot of progressive die punching machine Structure.

Background technique

The progressive die (also known as progressive die, progressive die) refers to press machine in one stroke, successively in several different positions On, it is completed at the same time the punch die of multiple working procedure.The progressive die generally uses progressive die punching machine, drives continuous die worker using progressive die punching machine Feeding structure and demolding structure are also driven while work.

Currently, the Chinese utility model patent that notification number is CN204276614U discloses a kind of continuous die stamping abnormal shape drawing Stretch the linkage of part, including upper punching machine and lower punching machine, the cylinder of the upper upper die of punching press and driving upper mold, on the lower punching machine Lower die, the upper die and lower die mutual cooperation binder form the progressive die, are provided with stripper plate in the upper mold, set in the lower die It is equipped with the elastic component of upper die and lower die buffering binder, cylinder is equipped with solenoid valve, is provided with PLC controller on solenoid valve.It utilizes PLC controller controls solenoid valve, to control the lifting of cylinder, and then controls and drives progressive die work, utilize elastic component Complete demoulding.

When lacking the driving structure to feeding structure in above-mentioned linkage, feeding structure is operated alone to need to install Driving structure, and then lead to the complicated problem inconvenient for use of progressive die punching machine structure.

Utility model content

In view of the deficienciess of the prior art, leading to the utility model lies in that provide a kind of linkage structure of progressive die punching machine It crosses transmission shaft and the torque of crankshaft is transferred to feeding structure and demolding structure, to reach while drive feeding structure, demoulding The purpose of structure and progressive die work.

To achieve the above object, the utility model provides following technical solution: a kind of linkage structure of progressive die punching machine, Including rack, the rack vertical sliding is connected with cope plate, and the rack is fixedly connected with lower template, and the gantry rotation connects It is connected to crankshaft, the crankshaft drives cope plate vertical shift, and the rack is equipped with the driving motor of driving crank rotation, under described Template is equipped with the feeding structure and demolding structure of conveying blank, and the gantry rotation is connected with transmission shaft, and the crankshaft driving passes Moving axis rotation, the feeding structure and demolding structure with transmission axis connection.

By using above-mentioned technical proposal, driving motor drives crank rotation, and crankshaft drives cope plate in the vertical direction It is mobile, so that progressive die work be made to complete punching press；While progressive die work, crankshaft drives transmission shaft rotation, and transmission shaft is same When driving feeding structure and demolding structure work, to reach while drive feeding structure, demolding structure and the progressive die to work, Keep progressive die punching machine structure simpler more convenient to use；And feeding structure, demolding structure and the progressive die is made to pass through machinery Structure linkage, improves the sync rates between three, prevents from making operational impairment because work is asynchronous between three, reduction is produced Substandard product.

The utility model is further arranged to: the crank rotation is connected with flywheel, and the driving motor driving flywheel turns It is dynamic, electromagnetic clutch is set between the flywheel and crankshaft.

Punching machine may be needed frequently to suspend in punching press, when pause needs to stop driving motor, frequent start and stop driving Motor can damage driving motor, and by using above-mentioned technical proposal, driving motor drives flywheel turns, when punching press starting electromagnetism from Clutch makes flywheel, in being fixedly connected, drive crank rotation using the inertia kinetic energy of flywheel storage with crankshaft using electromagnetic clutch, Punching machine can be suspended by control electromagnetic clutch, not need to stop driving motor, to protect driving motor, extend driving electricity The service life of machine.

The utility model is further arranged to: the crankshaft is set there are two rod journal, and two rod journals are in same Axis setting, the flywheel are located between two rod journals, and there are two the two sides for being located at flywheel for the electromagnetic clutch, often A rod journal is arranged with connecting rod, and the connecting rod and cope plate are hinged.

By using above-mentioned technical proposal, flywheel is set to the middle position of crankshaft, reduce flywheel and rod journal it Between distance, be applied to the arm of couple of couple on crankshaft to reduce, and then reduce the distorting stress that crankshaft is subject to, balance crankshaft Stress, keep crankshaft stress symmetrical with flywheel, reduce stress concentrate the case where occur.

The utility model is further arranged to: the rack is fixedly connected there are two bracket, the bracket and crank rotation Connection, the bracket are located at two between rod journal and flywheel.

By using above-mentioned technical proposal, crankshaft is supported using bracket, support force is provided for crankshaft, reduces crankshaft two end Support force reduces the arm of couple of crankshaft couple, and then reduces the shearing stress that crankshaft is subject to.

The utility model is further arranged to: the feeding structure includes two mounting rods being set in parallel and connection Block, the mounting rod both ends are equipped with guide pad, and the guide pad is slidably connected to lower template, and the mounting rod is slidably connected There is link block, the link block is slidably connected to lower template, and the guide pad glide direction and link block glide direction are perpendicular.

By using above-mentioned technical proposal, after the progressive die completes a punching press, two mounting rods are close to each other to utilize Blank is fixedly clamped by fixture block, two mounting rods is then moved axially, so that blank be driven to move axially at next station；So Two mounting rods move in the direction away from each other again afterwards, and fixture is made no longer to clamp blank, last two mounting rods axial movement To initial position, prepares for punching press next time, the movement of blank is realized using mounting rod and fixture block, facilitates rushing for the progressive die Pressure.

The utility model is further arranged to: the cope plate is fixedly connected with conflict block, the conflict block two sides setting Inclined-plane, the inclined-plane, which contacts at guide pad, keeps guide pad mobile to the direction far from conflict block.

By using above-mentioned technical proposal, when punching press, cope plate is moved down, so that conflict block be driven to move down, supports The inclined-plane of contact block two sides contacts on guide pad respectively, moves two guide pads in the direction away from each other, and then make to install Bar moves in the direction away from each other, realizes that two corresponding fixture blocks are located remotely from each other, be no longer fixedly clamped blank, avoids fixture block shadow Ring punching press.

The utility model is further arranged to: the lower template is rotatably connected to eccentric wheel, and the link block is slidably connected In eccentric wheel, the transmission shaft driving eccentric wheel rotation.

By using above-mentioned technical proposal, driving motor drives transmission shaft to rotate by crankshaft, and transmission shaft drives eccentric wheel It rotates, drives link block periodically to move back and forth in eccentric wheel rotation process, so that the axial movement of mounting rod is realized, into And realize the movement of fixture block, realize the movement of blank.

The utility model is further arranged to: the demolding structure includes the thimble for being slidably connected to lower template, the top Needle is fixedly connected with ejector retainner plate.

By using above-mentioned technical proposal, after completing punching press, ejector retainner plate is moved up, and thimble is driven to move up and will be located at Blank ejection in cavity plate, to realize the demoulding of workpiece.

The utility model is further arranged to: the gantry rotation is connected with demoulding shaft, the transmission shaft driving demoulding Shaft rotation, the demoulding shaft are fixedly connected with cam, and the actuated by cams ejector retainner plate moves up, and the ejector retainner plate is under Ejector spring is equipped between template.

By using above-mentioned technical proposal, driving motor drives transmission shaft by crankshaft, and transmission shaft drives demoulding shaft to turn Dynamic, demoulding shaft band moving cam rotates, and pushes ejector retainner plate to move up when cam rotates, completes demoulding；Complete demoulding back center Plate resets under the action of the spring.

The utility model is further arranged to: the conflict block is equipped with first coil, and the first coil is wound simultaneously In two inclined-planes, the first coil upper end is electrically connected to a power source, and the conflict block is equipped with contact, the contact and First Line Electrical connection, the contact are electrically connected with the second coil both when circle contact, the magnetic generated after two second coils are powered Field direction is opposite.

By using above-mentioned technical proposal, when contact contradicts in first coil, two the second coils are powered, and two second The magnetic field that coil generates one end pole orientation close to each other is identical, to generate the magnetic force to repel each other between the two, using repelling each other Magnetic force be located remotely from each other two guide pads；When conflict block continues to move down, the first coil the number of turns for accessing circuit is reduced, To reduce the resistance in circuit, the electric current in circuit is increased, and then increase the magnetic force of the second coil, under the magnetic force Guide pad continues to be located remotely from each other；The power being located remotely from each other is provided using electromagnetic force for guide pad, is reduced between conflict block and guide pad Pressure, impact force and frictional force.

In conclusion the utility model has the following beneficial effects:

First, crankshaft driving transmission shaft rotation, transmission shaft drives feeding structure and demolding structure simultaneously, to reach same When driving feeding structure, demolding structure and the progressive die work, keep progressive die punching machine structure simpler more convenient to use, and So that feeding structure, demolding structure and the progressive die is linked by mechanical structure, improves the sync rates between three, prevent between three Make operational impairment because work is asynchronous, substandard product is produced in reduction；

Second, driving motor drives flywheel turns, using the pause and starting of control electromagnetic clutch control punching machine, it is not required to Stop driving motor, to protect driving motor, extends the service life of driving motor；

Third, linkage structure is reasonable, reduce the arm of couple for being applied to couple on crankshaft, and then reduces the torsion that crankshaft is subject to Stress, the stress of balance crankshaft keep crankshaft stress symmetrical with flywheel, reduce the case where stress is concentrated and occur.

Detailed description of the invention

Fig. 1 is the perspective view of embodiment 1；

Fig. 2 is the structural schematic diagram that embodiment 1 is used to show punching structure；

Fig. 3 is the structural schematic diagram that embodiment 1 is used to show feeding structure；

Fig. 4 is the structural schematic diagram that embodiment 1 is used to show clamp structure；

Fig. 5 is the structural schematic diagram that embodiment 1 is used to show the first driving structure；

Fig. 6 is the portion the A enlarged drawing of Fig. 5；

Fig. 7 is the structural schematic diagram that embodiment 1 is used to show the second driving structure；

Fig. 8 is the perspective view that embodiment 1 is used to show demolding structure；

Fig. 9 is the sectional view that embodiment 2 is used to show the first driving structure.

Appended drawing reference: 1, cope plate；2, lower template；21, the first sliding block；22, the second sliding block；23, cavity plate；3, clamping knot Structure；31, mounting rod；32, fixture block；33, link block；331, guide rod；332, the first T-slot；333, interconnecting piece；335, waist hole； 4, the first driving structure；41, guide pad；411, idler wheel；412, the second T-slot；42, clamp springs；43, conflict block；431, tiltedly Face；44, first coil；45, the second coil；46, contact；5, the second driving structure；51, eccentric wheel；53, shell；6, rack； 61, bracket；7, punching structure；71, crankshaft；72, connecting rod；73, flywheel；731, electromagnetic clutch；74, driving motor；8, it feeds Structure；81, cross diverter；82, transmission shaft；821, the second bevel gear；9, demolding structure；91, shaft is demoulded；911, the first umbrella Gear；92, cam；93, ejector retainner plate；94, thimble；941, ejector spring.

Specific embodiment

The utility model is described in further detail below in conjunction with attached drawing.

The same or similar label correspond to the same or similar components in the attached drawing of the utility model embodiment；It is practical at this In novel description, it is to be understood that if the orientation or positional relationship for having the instructions such as term " on ", "lower", "left", "right" is It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore retouch in attached drawing The term for stating positional relationship only for illustration, should not be understood as the limitation to this patent, for the common skill of this field For art personnel, the concrete meaning of above-mentioned term can be understood as the case may be.

Embodiment 1: a kind of linkage structure of progressive die punching machine, as shown in Figure 1, including rack 6, being slidably connected to rack 6 Cope plate 1, the lower template 2, punching structure 7, feeding structure 8 and the demolding structure 9 that are fixedly connected on rack 6.Punching structure 7 drives Dynamic cope plate 1 moves in the vertical direction, to carry out punching press to blank；Demolding structure 9 will complete the blank of punching press from continuous Die worker deviates from position；The blank deviate from from progressive die station is delivered to next station by feeding structure 8.

As shown in Fig. 2, punching structure 7 includes driving motor 74, crankshaft 71, flywheel 73 and two connecting rods 72.71 turns of crankshaft Dynamic to be connected in rack 6, there are two rod journals for crankshaft 71；The upper end of two connecting rods 72 is placed on two companies of crankshaft 71 respectively Bar axle journal, rod journal and connecting rod 72 are rotatablely connected, and the lower end of connecting rod 72 is articulated with cope plate 1.When crankshaft 71 rotates, pass through company Bar 72 drives lower template 2 to move back and forth in the vertical direction.Flywheel 73 is rotationally connected on crankshaft 71 and flywheel 73 is located at two Between a rod journal.Driving motor 74 is fixed in rack 6, and driving motor 74 drives flywheel 73 to rotate by V belt translation.Fly There are two electromagnetic clutch 731, two electromagnetic clutch 731 to be located at 73 liang of flywheel for coaxial arrangement between wheel 73 and crankshaft 71 Side, the driving part of electromagnetic clutch 731 are fixedly and coaxially connected in 73 end face of flywheel, and the slave unit of electromagnetic clutch 731 is same Axis is fixedly connected on crankshaft 71.When electromagnetic clutch 731 is powered, flywheel 73 and song are made under the action of electromagnetic clutch 731 Axis 71 is fixedly connected, so that the inertia kinetic energy band dynamic crankshaft 71 that flywheel 73 stores rotates；When needing to suspend punching machine, no longer to electromagnetism Clutch 731 is powered, so that flywheel 73 and crankshaft 71 be made to become rotation connection again again, is suspended by control electromagnetic clutch 731 Punching machine does not need to stop driving motor 74, to protect driving motor 74, extends the service life of driving motor 74.

As shown in Fig. 2, the quality of flywheel 73 is generally large in order to improve the rotary inertia of flywheel 73, flywheel 73 is located at song The middle position of axis 71, so that crankshaft 71 is by biggish shearing stress, crankshaft 71 is easily damaged after long-term work.On solving Technical problem is stated, is fixedly connected in rack 6 there are two bracket 61, crankshaft 71 is placed through on bracket 61 and the two connects in rotation It connects, bracket 61 is located between two rod journals and flywheel 73.Crankshaft 71 is supported using bracket 61, provides branch for crankshaft 71 Support force to reduce the support force at 71 both ends of crankshaft, while reducing the arm of couple of 71 couple of crankshaft, so reduce crankshaft 71 by Shearing stress.

As shown in figure 3, feeding structure 8 includes transmission shaft 82, clamp structure 3, the first driving structure 4 and the second driving structure 5, wherein clamp structure 3 is slidably connected in lower template 2, and the first driving structure 4 drives the opening and contraction of clamp structure 3, from And complete being fixedly clamped and discharge to blank；Second driving structure 5 driving clamp structure 3 moves left and right, and realizes the shifting of blank It is dynamic.

As shown in figure 4, clamp structure 3 includes mounting rod 31, fixture block 32 and link block 33, wherein there are two simultaneously for mounting rod 31 And be set in parallel, be respectively mounted on each mounting rod 31 there are five fixture block 32, when two mounting rods 31 close to when, two are corresponding Fixture block 32 is close to which blank to be fixedly clamped.There are two link blocks 33 and is located at 31 both ends of mounting rod, link block 33 Interior fixation is equipped with guide rod 331, and 331 both ends of guide rod, which are respectively perpendicular, to be placed through in two mounting rods 31 and guide rod 331 With mounting rod 31 in being slidably connected, the position to axial between two mounting rods 31 is fixed using guide rod 331, is prevented Only misplacing and leading to not clamp blank occur in two corresponding fixture blocks 32.

As shown in figure 4, offering the first T-slot 332 on link block 33, lower template 2 is fixedly connected with and the first T-slot First sliding blocks 21 of 332 adaptations, the first sliding block 21 with positioned at the middle position of two mounting rods 31 and parallel with mounting rod 31. When mounting rod 31 is close to each other, two mounting rods 31 can be contacted on link block 33, ensure that two 31 phases of mounting rod Radial position when mutually close is constant, and then remains unchanged the radial position of blank, makes the mobile each time accurate of blank Into in next station.

As shown in Figure 5 and Figure 6, the first driving structure 4 includes guide pad 41, clamp springs 42 and conflict block 43, guide pad The both ends of two mounting rods 31 are placed on there are four 41 and respectively, guide pad 41 is in be slidably connected with mounting rod 31.Guide pad 41 offer the second T-slot 412, and lower template 2 is fixedly connected with the second sliding block 22 being adapted to the second T-slot 412, the second sliding block 22 It is vertical setting with mounting rod 31, to make guide pad 41 be slidably connected in lower template 2, and its glide direction and mounting rod 31 is vertical.42 both ends of clamp springs are respectively fixedly connected with on two adjacent guide pads 41, and conflict block 43 is fixedly connected on In template 1,43 two sides of conflict block are provided with inclined-plane 431, and when punching press, cope plate 1 can be moved down, and conflict block 43 is in lower template 2 Drive under move down, so that the inclined-plane 431 of 43 two sides of conflict block is contacted at respectively on two guide pads 41, make two guiding Block 41 moves in the direction away from each other, and then makes being located remotely from each other for mounting rod 31, is located remotely from each other fixture block 32 and no longer clamps admittedly Determine blank, fixture block 32 is avoided to influence punching press；When guide pad 41 moves in the direction away from each other, clamp springs 42 be stretched from And elastic force is generated, and after the completion of punching press, cope plate 1 is moved up, when conflict block 43 is no longer contradicted with guide pad 41, guide pad 41 It is close to each other under the action of 42 elastic force of clamp springs, the blank that punching press is completed is fixedly clamped.In order to reduce guide pad 41 with Frictional force between conflict block 43, when guide pad 41 is rotatably connected to idler wheel 411, and conflict block 43 moves down, idler wheel 411 with Conflict block 43 contradicts.

As shown in fig. 7, the second driving structure 5 is located at the left side of mounting rod 31, including eccentric wheel 51, shell 53 and transmission shaft 82；The link block 33 in left side offers waist hole 335, and eccentric wheel 51 is placed in waist hole 335, and connection is driven when eccentric wheel 51 rotates 33 transverse reciprocating of block is mobile, moves axially mounting rod 31.Shell 53 is fixedly connected in lower template 2, and eccentric wheel 51 is located at outer In shell 53, shell 53 is fixedly connected in lower template 2, and interconnecting piece 333 passes through shell 53 and extends in shell 53, utilizes shell 53 Start dust-proof effect, protects cam 92.82 vertical pipe of transmission shaft is crossed shell 53 and is fixedly connected with eccentric wheel 51, on transmission shaft 82 End is fixedly connected with cross diverter 81(referring to Fig. 3), output shaft and the transmission shaft 82 of cross diverter 81 are fixedly and coaxially connected, and ten The output shaft and crankshaft 71(of word diverter 81 are referring to Fig. 3) pass through V belt translation.Crankshaft 71 passes through the driving transmission of cross diverter 81 Axis 82 rotates, and transmission shaft 82 drives eccentric wheel 51 to rotate, and drives link block 33 periodically reciprocal in 51 rotation process of eccentric wheel It is mobile, to realize the axial movement of mounting rod 31, and then realize the movement of fixture block 32, realizes the movement of blank.Also it utilizes Chain conveyer replaces the V belt translation between the output shaft and crankshaft 71 of cross diverter 81, synchronous with increase to improve transmission efficiency Rate.

As shown in figure 8, demolding structure 9 includes that the thimble 94 for being slidably connected to lower template 2 and demoulding shaft 91, thimble 94 have Multiple and with the progressive die the station is arranged coaxially, and 94 lower end of thimble is fixedly connected with ejector retainner plate 93, after completing punching press, thimble Plate 93 moves up, and the ejection of the blank in cavity plate 23 will be located at by driving thimble 94 to move up, to realize the demoulding of workpiece.It is de- Mould shaft 91 is rotationally connected in rack 6 and is located at 93 lower section of ejector retainner plate.Demoulding shaft 91 is fixedly connected there are two cam 92, It demoulds shaft 91 to rotate with moving cam 92, pushes ejector retainner plate 93 to move up when cam 92 rotates, complete the demoulding of workpiece.Demoulding 91 left end of shaft has been fixedly and coaxially connected the first bevel gear 911, and the lower end of transmission shaft 82 passes through lower template 2 and extends to demoulding shaft At 91, the lower end of transmission shaft 82 has been fixedly and coaxially connected the second bevel gear 821, and the first bevel gear 911 is nibbled with the second bevel gear 821 It closes, drives demoulding shaft 91 to rotate using transmission shaft 82, realize demoulding.

As shown in figure 8, being arranged with ejector spring 941 on thimble 94,941 upper end of ejector spring contradicts lower template 2, another End contacts on ejector retainner plate 93.When demoulding, ejector retainner plate 93 moves up compression ejector spring 941, after completing demoulding, in demoulding bullet It is resetted under the elastic force of spring 941.

Embodiment 2: a kind of linkage structure of progressive die punching machine, as shown in figure 9, the difference with first embodiment is to contradict 43 lower end of block is wound with first coil 44, and first coil 44 simultaneously winds two inclined-planes 431, the upper end of first coil 44 and electricity The electrical connection of source anode.Two 41 upper ends of guide pad are fixedly connected with contact 46, electric both when contact 46 is contacted with first coil 44 It connects, is inlaid with the second coil 45 in two guide pads 41.45 direction of winding of the second coil in two guide pads 41 is identical, Two the second coil 45 one end close to each other are electrically connected with contact 46, one end that the second coil 45 is located remotely from each other and power supply it is negative Pole electrical connection.When punching press, cope plate 1 is moved down, and moves down conflict block 43, when contact 46 contradicts in first coil 44 When, two the second coils 45 are powered, and the magnetic field that two the second coils 45 generate one end pole orientation close to each other is identical, from And the magnetic force to repel each other is generated between the two, it is located remotely from each other two guide pads 41；When conflict block 43 continues to move down, access 44 the number of turns of first coil of circuit is reduced, so that the resistance in circuit reduces, increases the electric current in circuit, and then increase The magnetic force of second coil 45, guide pad 41 continues to be located remotely from each other under the magnetic force；It is that guide pad 41 provides using electromagnetic force The power being located remotely from each other reduces pressure, impact force and frictional force between conflict block 43 and guide pad 41.

Specific working mode: driving motor 74 drives flywheel 73 to rotate, and when punching press, is powered for electromagnetic clutch 731, makes to fly Wheel 73 is fixedly connected with crankshaft 71, drives crankshaft 71 to rotate using flywheel 73.Crankshaft 71 on 72 cope plate 1 of connecting rod by moving down It is dynamic, to carry out punching press to blank.Crankshaft 71 drives cross diverter 81 by V belt translation, and cross diverter 81 drives transmission shaft 82 rotations；The rotation of transmission shaft 82 band movable eccentric wheel 51 and demoulding shaft 91 rotate, and the demoulding rotation band moving cam 92 of shaft 91 rotates, The rotation of cam 92 pushes ejector retainner plate 93 to move up, and ejector retainner plate 93 drives thimble 94 to move up, will complete the blank of punching press from Deviate from progressive die station；The rotation of eccentric wheel 51 drives 33 transverse shifting of link block, and link block 33 drives mounting rod 31 laterally to move Dynamic, the blank deviate from from progressive die station is delivered to next station.

This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but As long as all by the protection of Patent Law in the scope of the claims of the utility model.

Claims (10)

1. a kind of linkage structure of progressive die punching machine, including rack (6), rack (6) vertical sliding is connected with cope plate (1), the rack (6) is fixedly connected with lower template (2), it is characterized in that: the rack (6) is rotatably connected to crankshaft (71), institute Crankshaft (71) driving cope plate (1) vertical shift is stated, the rack (6) is equipped with the driving motor of driving crankshaft (71) rotation (74), the lower template (2) is equipped with the feeding structure (8) and demolding structure (9) of conveying blank, rack (6) rotation connection Have transmission shaft (82), the crankshaft (71) driving transmission shaft (82) rotation, the feeding structure (8) and demolding structure (9) with Transmission shaft (82) connection.

2. the linkage structure of a kind of progressive die punching machine according to claim 1, it is characterized in that: the crankshaft (71) rotation connects It is connected to flywheel (73), driving motor (74) driving flywheel (73) rotation is set between the flywheel (73) and crankshaft (71) Electromagnetic clutch (731).

3. the linkage structure of a kind of progressive die punching machine according to claim 2, it is characterized in that: the crankshaft (71) is equipped with two A rod journal, two rod journals are arranged coaxially, and the flywheel (73) is located between two rod journals, the electricity There are two the two sides for being located at flywheel (73), each rod journal is arranged with connecting rod (72) magnet clutch (731), described Connecting rod (72) and cope plate (1) are hinged.

4. a kind of linkage structure of progressive die punching machine according to claim 3 connects it is characterized in that: the rack (6) is fixed It connects there are two bracket (61), the bracket (61) and crankshaft (71) are rotatablely connected, and the bracket (61) is located at two connecting rods Between axle journal and flywheel (73).

5. the linkage structure of a kind of progressive die punching machine according to claim 1, it is characterized in that: the feeding structure (8) wraps Two mounting rods being set in parallel (31) and link block (33) are included, mounting rod (31) both ends are equipped with guide pad (41), the guide pad (41) is slidably connected to lower template (2), and the mounting rod (31) slidably connects link block (33), institute It states link block (33) to be slidably connected to lower template (2), guide pad (41) glide direction is in link block (33) glide direction Vertically.

6. the linkage structure of a kind of progressive die punching machine according to claim 5, it is characterized in that: the cope plate (1) is fixed It is connected with conflict block (43), inclined-plane (431) are arranged in conflict block (43) two sides, and the inclined-plane (431) contacts at guide pad (41) make guide pad (41) mobile to the direction far from conflict block (43).

7. the linkage structure of a kind of progressive die punching machine according to claim 6, it is characterized in that: the lower template (2) rotates It is connected with eccentric wheel (51), the link block (33) is slidably connected to eccentric wheel (51), and the transmission shaft (82) drives eccentric wheel (51) it rotates.

8. the linkage structure of a kind of progressive die punching machine according to claim 1, it is characterized in that: the demolding structure (9) wraps The thimble (94) for being slidably connected to lower template (2) is included, the thimble (94) is fixedly connected with ejector retainner plate (93).

9. the linkage structure of a kind of progressive die punching machine according to claim 8, it is characterized in that: the rack (6) rotation connects It is connected to demoulding shaft (91), transmission shaft (82) driving demoulding shaft (91) rotation, the demoulding shaft (91) is fixedly connected Have cam (92), cam (92) driving ejector retainner plate (93) moves up, and sets between the ejector retainner plate (93) and lower template (2) There are ejector spring (941).

10. the linkage structure of a kind of progressive die punching machine according to claim 6, it is characterized in that: in the conflict block (43) Equipped with first coil (44), the first coil (44) is wound in two inclined-planes (431), first coil (44) upper end simultaneously It is electrically connected to a power source, the conflict block (43) is equipped with contact (46), two when the contact (46) and first coil (44) contact Person's electrical connection, the contact (46) are electrically connected with the second coil (45), generate after two second coils (45) are powered Magnetic direction is opposite.