CN208019248U - A kind of plate punching equipment - Google Patents

Abstract

The utility model provides a kind of plate punching equipment, including several are used for the molding stamping station of plate stamping, and the stamping station includes being set gradually along feed direction：Side sawing sheet station obtains stamping A for punching banding substrate；Side bending station, for the multiple bending in the side of stamping A to be obtained stamping B；Bottom sawing sheet station, for obtaining stamping C in the bottoms stamping B sawing sheet；The bending station of bottom one time, for the first multiple bending of bottom edge bending part of stamping C to be obtained stamping D；Prejudge station, goes out to prejudge position for connecting punching on material strip in the bottom of stamping C；The secondary bending station in bottom, for the second bottom edge bending part bending of stamping C to be obtained stamping E；Blanking station, for detaching stamping E cut-outs.Plate punching equipment provided by the utility model ensure that the processing quality of product by that will connect material position design on the bending edges of product bottom, and for the design using unique continuous die stamping sequence.

Description

A kind of plate punching equipment

Technical field

The utility model is related to hardware stamping technical field more particularly to a kind of plate punching equipments.

Background technology

Lithium battery has that energy density is high, has extended cycle life and the advantage outstanding such as environmentally protective, develops in recent years very Rapidly, therefore, it is widely used in social life.

A kind of plank as li battery shell as shown in Figure 1, production process often use single punching press, punching press Process includes cutting useless, flange, forming and punching etc., and so dividing sequence processing, not only entire production equipment occupied space is larger, and needs Multiple clamping positions, and processing efficiency is low, and it is low to process product size precision；And carry out li battery shell punching according to the prior art 110 bottom of principal plane of pressure, product will appear even material position vacancy 120, lead to not entire lithium battery being completely encapsulated in product In shell, lithium battery is caused security risk occur, reprocessing li battery shell material is thin, and product easily deforms, to existing punching press Equipment is also a huge test.

Utility model content

The purpose of this utility model is that：Processing efficiency caused by dividing sequence to process for li battery shell in the prior art is low Under, product principal plane connects material position vacancy caused by connecting material position the problem of provide it is a kind of use continuous die stamping, product principal plane without The even plate punching equipment of material position design.

The technical solution that the utility model is proposed with regard to above-mentioned technical problem is as follows：A kind of plate punching equipment is provided, is wrapped Several are included for by the molding stamping station of plate stamping, the stamping station to include being set gradually along feed direction：

Side sawing sheet station carries out punching for designing banding substrate according to side sawing sheet, and finally obtains stamping A；

Side bending station, for by the multiple bending and molding in side of the stamping A, and finally obtain both sides be provided with it is double The stamping B of bending edges；

Bottom sawing sheet station carries out punching for designing the stamping B according to bottom sawing sheet, and finally obtains stamping C, The bottom of stamping C is formed with the first bottom edge bending part and the second bottom edge bending part that the two-fold crimp in bottom is formed for bending, institute The length direction both ends for stating the second bottom edge bending part are separately connected bottom and connect material strip；

The bending station of bottom one time is used for the first multiple bending and molding of bottom edge bending part of stamping C, and finally obtains punching Part D；

Prejudge station, goes out to prejudge position for connecting punching between material strip and the second bottom plate bending part in the bottom；

The secondary bending station in bottom is used for the second bottom edge bending part bending and molding of stamping D, and finally obtains stamping E, The second bottom edge bending part length direction both ends of the stamping E are connected to respectively on the two-fold crimp of both sides；

Blanking station is detached for cutting off the stamping E.

Wherein, the bending station of the bottom one time includes prejudging station from the bottom sawing sheet station to described and setting gradually 's：

The vertical bender in bottom, including the vertical bending lower die of the vertical bending upper die in mutually matched bottom and bottom, are used for Vertical bending is carried out to the first bottom edge bending part of stamping C；

V rolls over bender, including V folding upper molds and is set to the first V of V folding lower part of upper die and is folded down mould and the 2nd V is folded down mould, Bending is rolled over for carrying out V to first bottom edge bending part；

Hit side mould to death, including it is mutually matched hit to death in upper mold and lower die when hitting to death, for first bottom edge bending Portion carries out hitting edge forming to death.

Wherein, the side sawing sheet station includes mutually matched side sawing sheet cavity plate and side sawing sheet punch, the side Several spaced lugs are reserved on when sawing sheet cavity plate is in the two opposite sides stamping A, the side sawing sheet punch exists Mounting hole is gone out on each lug.

Wherein, the side bending station includes being set gradually from the side sawing sheet station to the bottom sawing sheet station 's：

First side bender, including two spaced first side bending lower dies and be disposed above A side bending upper die, for by the two opposite sides Edge Bend of stamping A and forming first side bending part；

Second side bender, including two spaced second side bending lower dies and be disposed above Dual side-edge bending upper die is used for the vertical bending of the first side bending part；

Third side bender, including two spaced third side bending lower dies and be disposed above Three side bending upper dies, for the first side bending part bending to be formed second side bending part；

Four side bender, including two spaced four side bending lower dies and be disposed above Four side upper die of bending die is used for the second side bending part bending.

Wherein, it is described prejudge station include it is mutually matched prejudge upper mold and prejudge lower die, it is described to prejudge upper mold and described The stepped setting in end for prejudging lower die, prejudges position for connecting to open up out on material strip in bottom.

Wherein, the secondary bending station in the bottom includes that the secondary bending upper die in bottom being oppositely arranged up and down and bottom are secondary The end bosses of bending lower die, the secondary bending lower die in bottom are provided with secondary bending lug boss, the secondary bending in bottom The end set of upper mold has the secondary bending slot mutually abutted with the secondary bending lug boss side wall, for by the of stamping D Two bottom edge bending part bending and moldings.

Wherein, bending groove is offered on the vertical bending lower die in the bottom, is rolled over described in the vertical bending upper die face in bottom The position of curved groove is convexly equipped with bending lug boss；First bottom fold portion vertical product principal plane；

First V is folded down mould and the 2nd V is folded down the V folding protrusions for being respectively arranged with and working in coordination in the opposing sidewalls of mould Portion and V roll over inclined-plane；First bottom edge bending part is with product principal plane at V-shape；

It is described to hit to death in upper mold and protrusion is provided with that intermeshing to hit side upper mold to death convex respectively for the end of lower die when hitting to death It rises and portion and hits side lower die lug boss to death；The side wall of first bottom edge bending part is close to product principal plane.

Wherein, the end of each first side bending lower die and first side bending upper die is respectively arranged with phase interworking The V words protrusion and V word grooves of conjunction；

The end of each second side bending lower die and second side bending upper die is respectively arranged with mutually matched Second side bending lug boss and second side bending groove, the one side wall of the second side bending lug boss are vertically arranged simultaneously It is resisted against on the side wall of second side bending groove；

The end of third side bending lower die and third side bending upper die is respectively arranged with mutually matched third Side bending lower die lug boss and third side bending groove, the third side bending lower die lug boss and the bending of third side The cross section of groove is in V-shape；

The stepped setting in end and mutual cooperation of the four side bending lower die and four side upper die of bending die, The end of the four side bending upper die is further opened with four side bending groove, for rolling over the second side bending part It is curved.

The advantageous effect brought of technical solution that the utility model embodiment provides is：The utility model will be by that will connect material position Design uses unique continuous die stamping on the bending edges of product bottom, and for the thin feature of the design and product material Sequence is arranged, and to avoid the product company's of leaving material strip on principal plane from cutting off the notch to be formed, while improving production efficiency.

Description of the drawings

In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only explaining this Utility model is not used to limit the utility model.

Fig. 1 is the structural schematic diagram of li battery shell in the prior art；

Fig. 2 is the planar structure schematic diagram of plate punching equipment provided by the utility model；

Fig. 3 is the die assembly schematic diagram of first time bending station provided by the utility model；

Fig. 4 is the die assembly schematic diagram of bending station in side provided by the utility model；

Fig. 5 is the die assembly schematic diagram provided by the utility model for prejudging the secondary bending station of station and bottom；

Fig. 6 is a kind of flow chart of specific implementation mode of plate stamping technique provided by the utility model；

Fig. 7 is structural schematic diagram of the plank provided by the utility model after the sawing sheet of side；

Fig. 8 is structure change schematic diagram of the plank provided by the utility model in side bending；

Fig. 9 is structure change schematic diagram of the plank provided by the utility model in bottom first time bending；

Figure 10 is plank provided by the utility model structural schematic diagram after processing is completed.

Specific implementation mode

In order to make those skilled in the art more fully understand the technical solution of the utility model, below in conjunction with attached drawing pair The utility model is further detailed.

Embodiment one：

As shown in Fig. 2, the utility model provides a kind of plate punching equipment, including several are used to plate stamping being molded Stamping station, each stamping station is provided with upper die component and lower mold assemblies, and each upper die component includes from top to bottom successively Upper die holder, upper padding plate and the upper mould fixed plate of connection, each lower mold assemblies include from the bottom to top sequentially connected lower die holder, under Backing plate and lower mold fixed plate, upper die component can move under the driving of actuating unit towards lower mold assemblies side；Wherein, each It is provided with different upper molds on upper mould fixed plate, different lower dies is provided in each lower mold fixed plate, specifically, the punching press Station includes being set gradually along feed direction：

Side sawing sheet station 480 carries out punching for being designed according to side sawing sheet banding substrate, and finally obtains several The stamping A that a setting of interval successively and top and bottom are connected；

Side bending station 400, side bending station 400 are set to 480 exit side of side sawing sheet station, for the punching Part A carries out multiple side bending, and finally obtains the stamping B that the left and right sides is provided with two-fold crimp；

Bottom sawing sheet station 490, the bottom sawing sheet station 490 are set to 400 exit side of side bending station, are used for The stamping B is designed according to bottom sawing sheet and carries out punching, and finally obtains stamping C, the bottom of stamping C is formed with for bending Form the first bottom edge bending part and the second bottom edge bending part of the two-fold crimp in bottom, the length side of second bottom edge bending part It is separately connected bottom to both ends and connects material strip；

The bending station 300 of bottom one time, the bending station 300 of the bottom one time go out set on the bottom sawing sheet station 490 Expect side, carrying out multiple bending for the first bottom edge bending part to stamping C forms the first bottom edge bending part, and finally obtains stamping D；

Prejudge station 450：It is described to prejudge station 450 set on 300 exit side of bending station of the bottom one time, in institute It states bottom and connects punching between material strip and the second bottom plate bending part and go out to prejudge position；

The secondary bending station 460 in bottom, the secondary bending station 460 in bottom are set to the exit side for prejudging station 450, use Bending and molding is carried out in the second bottom edge bending part to the stamping D, and finally obtains stamping E, at this point, the second bottom of stamping E Plate bending part length direction both ends are connected to respectively on the two-fold crimp of the both sides stamping E；

Blanking station 470, blanking station 470 are set to the exit side of the secondary bending station in the bottom 460, for described Stamping E carries out cut-out separation.

Further, as shown in figure 3, the bending station 300 of the bottom one time include from the bottom sawing sheet station 490 to It is described to prejudge the vertical bender 310 in bottom, V the folding bender 320 and hit side mould 330 to death that station 450 is set gradually；

The vertical bender 310 in bottom includes the vertical bending upper die 311 in mutually matched bottom bending lower die vertical with bottom 312, bending groove 313, the vertical 311 face bending groove 313 of bending upper die in bottom are offered on the vertical bending lower die in bottom 312 Position be convexly equipped with bending lug boss 314；The bending groove 313 and bending lug boss 314 are worked in coordination for stamping C's First bottom edge bending part carries out vertical bending, at this point, first bottom fold portion vertical product principal plane；

The V foldings bender 320 includes that V folding upper molds 321 and the first V being set to below V foldings upper mold 321 are folded down mould 322 and the 2nd V be folded down mould 323, the first V is folded down mould 322 and the 2nd V is folded down in the opposing sidewalls of mould 323 and is respectively arranged with The V folding lug bosses and V foldings inclined-plane worked in coordination, roll over bending, at this point, described for carrying out V to first bottom edge bending part One bottom edge bending part is with product principal plane at V fonts；

It is described to hit the upper mold 331 when mould 330 includes mutually matched hits to death to death and hit side lower die 332 to death, it is described to hit side to death It upper mold 331 and hits when protrusion is provided with intermeshing hit to death respectively for the end of lower die 332 upper mold lug boss 333 to death and hits to death Side lower die lug boss 334, for carrying out hitting edge forming to death to first bottom edge bending part, at this point, first bottom edge bending The side wall in portion is close to product principal plane.

The side sawing sheet station 480 includes mutually matched side sawing sheet cavity plate (not shown) and side sawing sheet punch, The side sawing sheet cavity plate reserves several spaced lugs, the side sawing sheet on the side of the two opposite sides the stamping A Punch goes out mounting hole on each lug.

Further, as shown in figure 4, the side sawing sheet station 400 includes from the side sawing sheet station 480 to described First side bender 410 that bottom sawing sheet station 490 is set gradually, second side bender 420, third side bender 430 and four side bender 440；

The first side bender 410 includes two spaced first side bending lower dies 411 and is set to First side bending upper die 412 above it, each first side bending lower die 411 and first side bending upper die 412 End be respectively arranged with mutually matched V words protrusion and V word grooves, for by the two opposite sides Edge Bend of stamping A and being formed First side bending part, at this point, both sides lug and the first side bending part are at V-shape；

The second side bender 420 includes two spaced second side bending lower dies 421 and is set to Second side bending upper die 422 above it, each second side bending lower die 421 and second side bending upper die 422 End be respectively arranged with mutually matched second side bending lug boss and second side bending groove, the second side folding The one side wall of curved lug boss is vertically arranged and is resisted against on the side wall of second side bending groove, for rolling over the first side The vertical bending of turn of bilge, at this point, the lug is perpendicular to the first side bending part；

Third side bender 430 includes two spaced third side bending lower dies 431 and is set to Third side bending upper die 432 above it, third side bending lower die 431 and third side bending upper die 432 End be respectively arranged with mutually matched third side bending lower die lug boss and third side bending groove, the third side The cross section of Edge Bend lower die lug boss and third side bending groove is in V-shape, for rolling over the first side bending part Bending is at second side bending part；

The four side bender 440 includes two spaced four side bending lower dies 441 and is set to Four side upper die of bending die 442 above it, the four side bending lower die 441 and four side upper die of bending die 442 The stepped setting in end and be mutually staggered, the end of the four side bending upper die 442 is further opened with four side and rolls over Curved groove 443, four side bending groove 443 are set in the intermediate difference of height region of the stepped ends of film in four side bending It sets, is used for the second side bending part bending, so that the side wall of second side bending part is resisted against the first side folding Turn of bilge.

Further, as shown in figure 5, described to prejudge station 450 include mutually matched prejudging upper mold 451 and under prejudging Mould 452, the stepped setting in end prejudged upper mold 451 and prejudge lower die 452, is opened for connecting in the bottom on material strip It sets out and prejudges position；

The secondary bending station 460 in bottom includes the secondary bending upper die 461 in bottom being oppositely arranged up and down and bottom two Secondary bending lower die 462, secondary 462 end bosses of bending lower die in bottom are provided with secondary bending lug boss 463, the secondary bending in bottom The end set of upper mold 461 has the secondary bending slot 464 mutually abutted with secondary 463 side wall of bending lug boss, is used for stamping D The second bottom edge bending part bending and molding, and finally obtain the stamping E that bottom is provided with two-fold crimp, it is to be understood that by Connect designed in advance on material strip in bottom and have and prejudge position, therefore, when bottom connects secondary because of the bottom bending fracture of material strip, can ensure The surface quality of fracture.

Plate punching equipment provided by the utility model can complete all flow steps in a beat, improve operation effect Rate, specifically, as shown in fig. 6, the Sheet Metal Forming Technology of the plate punching equipment includes the following steps：

S10：Side sawing sheet：It using banding sheet material as base material, and is designed according to side sawing sheet and carries out punching, finally obtained several The stamping A that a setting of interval successively and top and bottom are connected；

Specifically, as shown in fig. 7, side sawing sheet design reserves several spaced lugs in the both sides stamping A 210, and mounting hole 220 is gone out on each lug；

S20：Side bending：Stamping A, which is moved on, carries out multiple side bending and molding, and finally obtains the left and right sides respectively It is provided with the stamping B of two-fold crimp；

Specifically, the number of side bending and molding is 4 times in step S20, in conjunction with shown in Fig. 8, the step S20 includes：

S21：One position of stamping A advances carries out first time side bending and forms first side bending part 230, at this point, Lug 210 is with the first side bending part 230 at V-shape；

S22：One position of stamping A advances carries out second of side bending, at this point, lug 210 is perpendicular to first side Edge Bend portion 230；

S23：One position of stamping A advances carries out third time side bending and forms second side bending part 240, at this point, Second side bending part 240 is with first side bending part 230 at V-shape；

S24：One position of stamping A advances carries out the 4th side bending, at this point, the side of second side bending part 240 Wall is resisted against first side bending part 230, another side wall vertical connection lug 210；

The side bending step of step S20 is completed, and finally obtains the stamping B that two sides are respectively arranged with two-fold crimp；

It is that the utility model embodiment is walked according to the incremental bending of the thin feature setting of converted products material above Suddenly, it can give material enough buffer time, avoid disposable stress is excessive product is caused to pull deformation；

S30：Bottom sawing sheet：Stamping B, which is moved on and designed according to bottom sawing sheet, carries out punching, and finally obtains stamping C, In conjunction with shown in Fig. 4, at this point, the bottom of stamping C is formed with the first bottom edge bending part for forming the two-fold crimp in bottom for bending 251 and the second bottom edge bending part 252, wherein the both sides of the second bottom edge bending part 252 are separately connected the product principal plane of stamping C 200 and the first bottom edge bending part 251；Bottom company is also respectively connected in the length direction both ends of second bottom edge bending part 252 Tape splicing 253 ensures machining accuracy for keeping the stabilization between each stamping to be connected；

S40:The bending in bottom：Stamping C is moved on and is carried out multiple bending and molding to the first bottom edge bending part 251, And finally obtain stamping D；

Specifically, in conjunction with shown in Fig. 9, the step S40 further includes：

S41：One position of advance stamping C and the vertical bending of carry out to the first bottom edge bending part 251, at this point, the first bottom The product principal plane 200 of 251 vertical stamping C of portion's bending part；

S42：One position of advance stamping C simultaneously carries out V folding bendings to the first bottom edge bending part 251, at this point, the first bottom edge is rolled over Turn of bilge 251 is with product principal plane 200 at V-shape；

S43：One position of advance stamping C simultaneously carries out hitting side to death to the first bottom edge bending part 251, at this point, the first bottom edge is rolled over The side wall of turn of bilge 251 is close on the second bottom edge bending part 252, and finally obtains the stamping D that bottom is provided with single bending edges；

S50:Prejudge：Stamping D moves on and connects punching between material strip 253 and the second bottom edge bending part 252 in bottom Position is prejudged, at this point, each stamping D is still connected with each other by even material strip；

S60：The secondary bending in bottom：Stamping D is moved on, and carries out bending and molding to the second bottom edge bending part 252, this When, described to prejudge position fracture, 252 length direction of the second bottom edge bending part is abutted respectively on the two-fold crimp of both sides, and final To stamping E；

S70：Blanking：To carrying out cut-out separation at the top of stamping E, and finished goods is finally obtained, so far, a product punching press It completes.

In conjunction with shown in Figure 10, the bottom of finished goods stamping E is formed with the two-fold crimp 250 in bottom, and the two-fold crimp 250 in bottom wraps Include the second bottom edge bending part 252 of 200 base vertical bending of the product principal plane formation along stamping E and along second bottom edge The first bottom edge bending part 251 that 252 end bending of bending part is formed, wherein the side wall of the first bottom edge bending part 251 is resisted against the The side wall of two bottom edge bending parts 252；And 252 length direction both ends of the second bottom edge bending part are connected to the two of product principal plane 200 The end of the two-fold crimp in side 270, the i.e. two-fold crimp of the two-fold crimp 250 in bottom of stamping E and both sides 270 are connected with each other from beginning to end, from And it solves the problems, such as the product principal plane occurred in the prior art and connects material position vacancy.

In conclusion the plate stamping stamping equipment in the utility model above-described embodiment is being produced by that will connect material position design On the bending edges of product bottom, and set using unique continuous die stamping sequence for the thin feature of the design and product material It sets, to avoid the product company's of leaving material strip on principal plane from cutting off the notch to be formed, while ensureing workpiece plank most fast, most steady In the case of complete the operations such as sawing sheet, lateral bending, bottom be curved, greatly improve production efficiency, reduce rejection rate.

The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, all at this Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model Right within.

Claims (8)

1. a kind of plate punching equipment, including several are used for the molding stamping station of plate stamping, which is characterized in that described Stamping station includes being set gradually along feed direction：

Side sawing sheet station (480) carries out punching for designing banding substrate according to side sawing sheet, and finally obtains stamping A；

Side bending station (400) is used for the multiple bending and molding in side of the stamping A, and finally obtains both sides and be provided with The stamping B of two-fold crimp；

Bottom sawing sheet station (490) carries out punching for designing the stamping B according to bottom sawing sheet, and finally obtains stamping The bottom of C, stamping C are formed with the first bottom edge bending part and the second bottom edge bending part that the two-fold crimp in bottom is formed for bending, The length direction both ends of second bottom edge bending part are connected separately with bottom and connect material strip；

The bending station (300) of bottom one time is used for the first multiple bending and molding of bottom edge bending part of stamping C, and finally obtains Stamping D；

Prejudge station (450), goes out to prejudge position for connecting punching between material strip and second bottom edge bending part in the bottom；

The secondary bending station (460) in bottom is used for the second bottom edge bending part bending and molding of stamping D, and finally obtains stamping The second bottom edge bending part length direction both ends of E, the stamping E are connected to respectively on the two-fold crimp of both sides；

Blanking station (470) is detached for cutting off the stamping E.

2. plate punching equipment according to claim 1, which is characterized in that bending station (300) packet of the bottom one time It includes and prejudges what station (450) was set gradually from the bottom sawing sheet station (490) to described：

The vertical bender in bottom (310), including the vertical bending lower die of the vertical bending upper die in mutually matched bottom (311) and bottom (312), it is used to carry out vertical bending to the first bottom edge bending part of stamping C；

V rolls over bender (320), including the first V that V rolls over upper mold (321) and is set to below V folding upper molds (321) is folded down mould (322) and the 2nd V is folded down mould (323), rolls over bending for carrying out V to first bottom edge bending part；

Hit side mould (330) to death, including it is mutually matched hit to death in upper mold (331) and lower die (332) when hitting to death, for described the One bottom edge bending part carries out hitting edge forming to death.

3. plate punching equipment according to claim 1, which is characterized in that the side sawing sheet station (480) includes phase The side sawing sheet cavity plate and side sawing sheet punch mutually coordinated, the side sawing sheet cavity plate are pre- on the side of the two opposite sides the stamping A Several spaced lugs, the side sawing sheet punch is stayed to go out mounting hole on each lug.

4. plate punching equipment according to claim 1, which is characterized in that the side bending station (400) include from The side sawing sheet station (480) sets gradually to the bottom sawing sheet station (490)：

First side bender (410), including two spaced first side bending lower dies (411) and be arranged on The first side bending upper die (412) of side, for by the two opposite sides Edge Bend of stamping A and forming first side bending part；

Second side bender (420), including two spaced second side bending lower dies (421) and be arranged on The second side bending upper die (422) of side is used for the vertical bending of the first side bending part；

Third side bender (430), including two spaced third side bending lower dies (431) and be arranged on The third side bending upper die (432) of side, for the first side bending part bending to be formed second side bending part；

Four side bender (440), including two spaced four side bending lower dies (441) and be arranged on The four side bending upper die (442) of side is used for the second side bending part bending.

5. plate punching equipment according to claim 1, which is characterized in that described to prejudge station (450) include phase interworking That closes prejudges upper mold (451) and prejudges lower die (452), described to prejudge upper mold (415) and the end for prejudging lower die (452) is in Ladder-like setting prejudges position for connecting to open up out on material strip in the bottom.

6. plate punching equipment according to claim 1, which is characterized in that secondary bending station (460) packet in bottom Include the secondary bending lower die of the secondary bending upper die in the bottom being oppositely arranged up and down (461) and bottom (462), the secondary bending in bottom The end bosses of lower die (462) are provided with secondary bending lug boss (463), the end of the secondary bending upper die in bottom (461) It is provided with the secondary bending slot (464) mutually abutted with secondary bending lug boss (463) side wall, for by the of stamping D Two bottom edge bending part bending and moldings.

7. plate punching equipment according to claim 2, which is characterized in that on the vertical bending lower die (312) in the bottom Offer bending groove (313), the position of bending groove (313) described in bottom vertical bending upper die (311) face is convexly equipped with folding Curved lug boss (314)；The first bottom edge bending part vertical product principal plane；

First V is folded down mould (322) and the 2nd V is folded down the V foldings for being respectively arranged with and working in coordination in the opposing sidewalls of mould (323) Lug boss and V roll over inclined-plane；First bottom edge bending part is with product principal plane at V-shape；

It is described to hit to death in upper mold (331) and protrusion is provided with and intermeshing hits side to death respectively for the end of lower die (332) when hitting to death Upper mold lug boss (333) and hit side lower die lug boss (334) to death；It is flat that the side wall of first bottom edge bending part is close to product master Face.

8. plate punching equipment according to claim 4, which is characterized in that each first side bending lower die (411) and the end of first side bending upper die (412) is respectively arranged with mutually matched V words protrusion and V word grooves；

The end of each second side bending lower die (421) and second side bending upper die (422) is respectively arranged with mutually The second side bending lug boss and second side bending groove of cooperation, the one side wall of the second side bending lug boss are vertical It is arranged and is resisted against on the side wall of second side bending groove；

The end of third side bending lower die (431) and third side bending upper die (432) is respectively arranged with mutual cooperation Third side bending lower die lug boss and third side bending groove, the third side bending lower die lug boss and third side The cross section of Edge Bend groove is in V-shape；

The end of the four side bending lower die (441) and four side bending upper die (442) it is stepped setting and mutually Cooperation, the end of the four side bending upper die (442) are further opened with four side bending groove (443), and being used for will be described Second side bending part bending.