CN110788214A - Support upgrades mould - Google Patents

Abstract

The invention discloses a support progressive die which combines plate blanking, support flanging and support bending blanking together through three-station design and improves production efficiency. A support progressive die comprises an upper die base, a lower die base, a first station, a second station and a third station which are adjacent in sequence; two first circular blanking holes, two first strip-shaped blanking holes and two first bracket blanking holes are formed in the lower die base; the two first strip-shaped blanking holes are symmetrically arranged in a front-back adjacent mode, the two first circular blanking holes are arranged on two sides between the two first strip-shaped blanking holes, the first support blanking holes are located on one side of the first strip-shaped blanking holes, the shape of the first support blanking holes is matched with the outer contour of the support, and the two first support blanking holes are symmetrically arranged in a front-back adjacent mode.

Description

Support upgrades mould

Technical Field

The invention belongs to the technical field of mold production, and particularly relates to a support progressive mold.

Background

The stamping die is a special process equipment for processing materials (metal or nonmetal) into parts (or semi-finished products) in cold stamping processing, and is called a cold stamping die (commonly called a cold stamping die). Stamping is a press working method in which a die mounted on a press is used to apply pressure to a material at room temperature to cause separation or plastic deformation of the material, thereby obtaining a desired part. Blanking is a stamping process in which a die is used to separate a portion of a material or work piece from another portion of the material, work piece, or scrap. The blanking is a general name of the separation processes of cutting, blanking, punching, notching, chiseling, trimming, tongue cutting, trimming and the like.

Before the support is formed, a round hole for installing the support needs to be punched in the middle of a plate, redundant waste materials on two sides of the round hole are punched, the shape of the support is reserved, and the outer contour of the product support is irregular, so that the redundant waste materials on two sides of the round hole need to be punched twice. As shown in figure 1, no set of special processing mold for the support exists at present, and in the prior art, three stations are operated through three sets of molds, so that the operation is inconvenient, the cost is increased, and the rapid and efficient production is not facilitated. After punching out the plane shape on panel, need carry out the turn-ups operation to the border of support for the border of support can satisfy the demand of installation, and has now all only to carry out a turn-ups through the mould to the support turn-ups, can have a lot of not enoughly: only one-time flanging is carried out, and the flanging is not in place, so that the flanging effect of the bracket is influenced; after the support is turned over once, the support rebounds and cannot completely meet the requirement of turning over. Need bend it before the shaping after the support turn-ups, prior art gets off single blanking earlier with the support of whole row, then puts single support and bends in the bender, reaches the effect of bending, exists following not enoughly: 1. the punching and bending are firstly carried out, and then the die bodies are distributed on two sets of dies, and two independent stations are needed for processing, so that the cost is increased, and the field is occupied; 2. the support that the blanking was accomplished need be transported, and is consuming time, bends single support moreover, need take down, and the operation is inconvenient. At present, a die device for combining plate cutting, support flanging and support bending and blanking does not exist, and the improvement of the production efficiency is not facilitated.

Disclosure of Invention

The invention aims to provide a support progressive die, which combines plate blanking, support flanging and support bending blanking together through three-station design and improves the production efficiency.

In order to solve the technical problem, the invention aims to realize that:

a support progressive die comprises an upper die base, a lower die base, a first station, a second station and a third station which are adjacent in sequence; two first circular blanking holes, two first strip-shaped blanking holes and two first bracket blanking holes are formed in the lower die base; the two first strip-shaped blanking holes are symmetrically arranged in a front-back adjacent mode, the two first circular blanking holes are arranged on two sides between the two first strip-shaped blanking holes, the first support blanking holes are located on one side of the first strip-shaped blanking holes, the shape of the first support blanking holes is matched with the outer contour of a support, and the two first support blanking holes are symmetrically arranged in a front-back adjacent mode; the first station comprises a first lower base plate arranged on the upper surface of a lower die base, six floating pins are arranged on the first lower base plate, springs are sleeved at the bottoms of the floating pins and are pressed on the lower die base, the six floating pins are arranged oppositely in a row of three, two second circular blanking holes, two second strip-shaped blanking holes and two second support blanking holes are formed in the lower base plate, and the second circular blanking holes and the second strip-shaped blanking holes are formed among the six floating pins; the upper surface of the first lower backing plate is provided with a first lower template, and the heads of the six floating pins penetrate out of the first lower template; a first lower template insert, two second lower template inserts and a third lower template insert are fixed in the first lower template; the first lower template insert is provided with two third circular blanking holes and two third strip-shaped blanking holes, the two second lower template inserts are respectively provided with third support blanking holes, a first punch is embedded in the third support blanking holes, the first punch protrudes out of the second lower template insert, the upper surface of the third lower template insert is sunken to form a support pit matched with the outer contour of the support, and the third lower template insert is positioned on one side of the second lower template insert; the first circular blanking hole, the second circular blanking hole and the third circular blanking hole are communicated, the first strip-shaped blanking hole, the second strip-shaped blanking hole and the first strip-shaped blanking hole are communicated, and the first support blanking hole, the second support blanking hole and the third support blanking hole are communicated; two edges of the first lower template are provided with first inner guide sleeves; a first rectangular spring is embedded in the upper die base, and a first ejector rod is pressed at the bottom of the first rectangular spring;

the first station comprises a first upper base plate arranged on the lower surface of the upper die holder, a first rectangular spring is fixed in the first upper base plate, and a first ejector rod penetrates through the first upper base plate; a first upper clamping plate is arranged on the lower surface of the first upper backing plate, a first ejector rod penetrates through the first upper clamping plate, a second punch is fixed on the first upper clamping plate, and the second punch is matched with the third circular blanking hole and used for punching a circular hole; a first inner guide pillar corresponding to the first inner guide sleeve is fixed on the first upper clamp plate; the lower surface of the first upper clamping plate is provided with a first stop plate, a first ejector rod is propped against the first stop plate, a third punch and two fourth punches are fixed on the first stop plate, the third punch is matched with a third strip-shaped blanking hole, the fourth punch is matched with a third support blanking hole, and a first inner guide pillar penetrates out of the first stop plate; the lower surface of the first stop plate is provided with a first upper stripping plate, the first upper stripping plate is provided with a first through hole corresponding to the floating pin, the first upper stripping plate is provided with a second through hole corresponding to the first punch, the second punch, the third punch and the fourth punch all penetrate out of the first upper stripping plate, and the first inner guide pillar penetrates out of the first upper stripping plate;

the second station comprises a second lower base plate arranged on the upper surface of the lower die base; a second lower template is arranged on the upper surface of the second lower backing plate, a shaping block is fixed on the second lower template, the shaping block is in a long strip shape, 7-shaped shaping blocks are respectively arranged on two sides of the middle of the shaping block, and the two shaping blocks are oppositely arranged and used for enabling the support to penetrate through the middle of the support; four flanging inserts are fixed on the second lower template, two of the four flanging inserts are positioned on two sides of the shaping block in a pair, the flanging inserts on the two sides of the shaping block are symmetrically arranged, and the flanging inserts on the two sides of the shaping block are arranged in parallel; the side surface of the top of the flanging insert is inclined to form an inclined surface, and the top surface of the top of the flanging insert is in transitional connection with the inclined surface through a cambered surface, so that the edge of the bracket is flanged; a second inner guide sleeve is arranged on the inner sides of two edges of the second lower template; a second rectangular spring is embedded in the upper die base, and a second ejector rod is pressed at the bottom of the second rectangular spring; the second station comprises a second upper base plate arranged on the lower surface of the upper die holder, a second rectangular spring is fixed in the second upper base plate, and a second ejector rod penetrates through the second upper base plate; a second upper clamp plate is arranged on the lower surface of the second upper backing plate, a second ejector rod penetrates through the second upper clamp plate, and a second inner guide pillar inserted into a second inner guide sleeve is fixed on the second upper clamp plate; a second stop plate is arranged on the lower surface of the second upper clamping plate, a second ejector rod is pressed against the second stop plate, and a second inner guide column penetrates out of the second stop plate; the lower surface of the second stop plate is arranged on a second upper stripping plate, two third through holes for inserting the shaping blocks are formed in the second upper stripping plate, second upper stripping plate inserts matched with the four flanging inserts are fixed in the second upper stripping plate, the bottom surface of each second upper stripping plate insert is partially sunken for inserting the top of the flanging insert, the side surface of the top of each second upper supporting plate insert is sunken to form a concave surface matched with the cambered surface of the flanging insert, and a second inner guide post penetrates out of the second upper stripping plate;

the third station comprises two symmetrical third lower cushion plates arranged on the upper surface of the lower die base, a support frame is arranged between the two third lower cushion plates, the upper surfaces of the two third lower cushion plates are respectively provided with a third lower die plate, and the two third lower die plates are also symmetrically arranged; a third inner guide sleeve is arranged on the third lower template; the support frame is formed by assembling a first support, a second support, four third supports and a fourth support; the first support comprises a first plate body, the first plate body is fixedly connected with the lower die base, three first stand columns which are arranged at intervals are arranged on the upper surface of the first plate body, and a first mounting hole is formed between two adjacent first stand columns on the first plate body; the second support comprises a first mounting block with a cuboid bottom, a second upright post protrudes from the middle of the top surface of the first mounting block, and a second support is fixed in the first mounting hole; the third support comprises a second mounting block with a cuboid bottom, a third upright post protrudes from the middle of the top surface of the second mounting block, and one third support is fixed in the other first mounting hole; the fourth support comprises a second plate body, the second plate body is fixedly connected with the lower die holder, the two ends of the upper surface of the second plate body are provided with fourth stand columns, the top surface of one of the fourth stand columns inclines to form a blanking inclined plane, two opposite blanking columns are arranged between the two fourth stand columns on the second plate body, a blanking through hole is formed between the two blanking columns, a second mounting hole is formed between the blanking column and the fourth stand column on the second plate body, and the two third supports are fixed in the second mounting hole; a third bracket is fixed between the first bracket and the fourth bracket; the upper surface of the first mounting block protrudes out of the upper surface of the first plate body, and the first plate body, the second mounting block and the second plate body are equal in height; the width of two side walls of the second upright post protrudes the width of two side walls of the first upright post, and the outer contour of the first upright post, the outer contour of the third upright post and the outer contour of the fourth upright post are the same; two groups of material blocking assemblies are arranged on the support frame at intervals, each material blocking assembly comprises two 7-shaped material blocking plates, the two material blocking plates are symmetrically arranged oppositely, and the side surfaces of the heads of the material blocking plates are sunken to form bending surfaces; a third support is arranged between the two groups of material blocking assemblies; a third rectangular spring is embedded in the upper die base, and a third ejector rod is pressed at the bottom of the third rectangular spring; the third station comprises a third upper base plate arranged on the lower surface of the upper die holder, a third rectangular spring is fixed in the third upper base plate, and a third ejector rod penetrates through the third upper base plate; a third upper clamp plate is arranged on the lower surface of the third upper backing plate, a third ejector rod penetrates through the third upper clamp plate, and a third inner guide pillar corresponding to the third inner guide sleeve is fixed on the third upper clamp plate; the lower surface of the third upper clamping plate is provided with a third stop plate, a third ejector rod is pressed against the third stop plate, two first bending blocks, four second bending blocks and a fifth punch are fixed on the third stop plate, the two first bending blocks are symmetrically arranged, the two first bending blocks are matched with the second support to realize primary bending of the support, the side surface of each first bending block is sunken to form an arc-shaped cutting surface, the top surface edge of each first bending block is inclined to form a Z-shaped first bending surface, the top surface of each first bending block is sunken to form an avoiding groove, and the first bending surface is used for pressing the support; the four second bending blocks are arranged on one side of the first bending block, the four second bending blocks are arranged in an array mode, two second bending blocks are symmetrically arranged in a group mode, the edge of the top surface of each second bending block inclines to form an S-shaped second bending surface, and the second bending surface is used for jacking the support; the fifth punch is used for being inserted into the material cutting through hole to realize the separation of two adjacent brackets; the third inner guide column penetrates out of the third stop plate; a third upper stripping plate is arranged on the lower surface of the third stop plate, a fourth through hole for inserting the head of the material baffle plate is formed in the third upper stripping plate, the fourth through hole and the second bending block are alternately arranged, and a third inner guide column penetrates out of the third upper stripping plate; the lower surface of the lower die base is provided with a lower pad foot.

On the basis of the above scheme and as a preferable scheme of the scheme: the first lower base plate is provided with three first guide sleeves, and the three first guide sleeves are in line connection with the two first circular blanking holes; four first guide pins are arranged on the first upper stripping plate, and connecting lines of the four guide pins and the second punch are in a straight line; the first guide pin is for insertion into the first guide sleeve.

On the basis of the above scheme and as a preferable scheme of the scheme: a first fixing block is fixed in the first upper clamping plate, and a first counter bore and a second counter bore are formed in the top surface of the first fixing block; the surface of the head of the second punch protrudes to form a first boss, and the surface of the head of the third punch protrudes to form a second boss; the first boss is sleeved in the first counter bore to form a fixing, and the second boss is sleeved in the second counter bore to form a fixing; a second fixing block is fixed in the first upper clamping plate, a third counter bore is formed in the top face of the second fixing block, a third boss is formed on the surface of the head of the fourth punch, and the third boss is sleeved in the third counter bore to form fixing.

On the basis of the above scheme and as a preferable scheme of the scheme: the first lower template insert and the first lower backing plate are fixed through bolts; the second lower template insert is fixed with the first lower base plate through a bolt; the third lower template insert is fixed with the first lower backing plate through bolts.

On the basis of the above scheme and as a preferable scheme of the scheme: two guide holes are formed in the shaping block, two second guide pins are fixed on the second upper stripping plate, and the second guide pins penetrate through the support and are inserted into the guide holes.

On the basis of the above scheme and as a preferable scheme of the scheme: the shaping block is connected with the second lower backing plate through a bolt; the shaping block is connected with the second lower backing plate through a bolt; the flanging insert is connected with the second lower backing plate through a bolt; the second upper stripping plate insert is connected with the second stop plate through a bolt.

On the basis of the above scheme and as a preferable scheme of the scheme: a third fixing block is fixed in the third upper clamping plate, a fourth counter bore is formed in the top surface of the third fixing block, a fourth boss is formed on the surface of the head of the fifth punch, and the fourth boss is sleeved in the fourth counter bore to be fixed.

On the basis of the above scheme and as a preferable scheme of the scheme: the lower surface of the upper die holder is recessed to form a first pit for placing the first mounting block and a second pit for placing the second mounting block; the side wall of the lower die base is provided with a discharging inclined plane which is parallel to the blanking inclined plane.

On the basis of the above scheme and as a preferable scheme of the scheme: the first plate body of the first support is connected with the lower die holder through a bolt, the first mounting block of the second support is connected with the lower die holder through a bolt, the second mounting block of the third support is connected with the lower die holder through a bolt, and the second plate body of the second support is connected with the lower die holder through a bolt.

On the basis of the above scheme and as a preferable scheme of the scheme: the first bending block is connected with the third upper clamping plate through a bolt, the second bending block is connected with the third upper clamping plate through a bolt, and the first bending block is connected with the third upper clamping plate through a bolt; the second bending block is connected with the third upper clamping plate through a bolt.

Compared with the prior art, the invention has the outstanding and beneficial technical effects that: according to the support progressive die, a plate is cut through a first station, the shape of a support is cut through the die, the first station comprises a lower die base, a first circular blanking hole, a second circular blanking hole and a third circular blanking hole are formed in the lower die base and communicated, the first strip-shaped blanking hole, the second strip-shaped blanking hole and the first strip-shaped blanking hole are communicated, and the first support blanking hole, the second support blanking hole and the third support blanking hole are communicated; the plate can be subjected to step-by-step operation, and the bracket is punched and cut out of the plate through punching of a round hole, punching of a strip-shaped hole and punching of a hole bracket outer contour hole; the three sets of dies are arranged on one set, and the operation can be completed on one station, so that the cost is reduced, the production efficiency is improved, and meanwhile, the phenomenon that the quality of the support is not uniform due to transfer among multiple stations is avoided; after the support is cut, the support is sent to a second station through an automatic feeder to be flanged, the second station comprises four flanging inserts arranged on a second lower die seat on the lower die seat, the four flanging inserts are arranged in front and at the back, the two flanging inserts are one pair and two pairs are arranged in front and at the back, the front pair of flanging inserts carries out primary flanging on the support, the back pair of flanging inserts carries out secondary flanging and qualitative operation on the support again, the required flanging effect is achieved, and the flanging quality is good; the shaping block in the middle of the four flanging inserts has the function of shaping the bracket of the primary flanging, so that the phenomenon that the secondary flanging does not reach the standard due to overlarge rebound of the bracket is avoided; after the support is flanged, the support is conveyed to a third station to be bent and separated, the third station comprises a support frame arranged on a lower die holder, the support frame comprises a first support, a second support, a third support and a fourth support, a first bending block and a second bending block are correspondingly arranged on an upper die holder, the support frame is pre-bent on the second support firstly, is bent to a certain angle but is not bent completely, the subsequent bending of the second bending block twice reaches the bending standard, and two sides of the support frame are also provided with baffle plates which can shape and baffle the support bent by the second bending block, so that the support reaches the bending standard; the bent support is cut off in the material cutting through hole through a fifth punch on the upper die base, so that adjacent supports are separated and cut off, and transportation and installation are facilitated. Three stations are integrated on one set of upper and lower die holders, so that the production efficiency is improved, and the production quality of the support is improved.

Drawings

Fig. 1 is a schematic diagram of the overall explosive structure of the present invention.

Fig. 2 is a schematic diagram of a partial explosion structure of the present invention.

FIG. 3 is a schematic view of the structure of the lower die holder of the present invention.

Fig. 4 is a schematic diagram of a partial explosion configuration of the present invention.

Fig. 5 is an exploded view of the second punch and the first fixing block according to the present invention.

Fig. 6 is a schematic view of a combination structure of a third punch and a first fixed block according to the present invention.

Fig. 7 is a schematic view of the structure of the flanging insert of the invention.

Fig. 8 is a schematic view of a second upper stripper insert configuration of the present invention.

Fig. 9 is a schematic diagram of a partial explosion configuration of the present invention.

Fig. 10 is a schematic view of a partial explosion configuration of the present invention.

Fig. 11 is a schematic diagram of a partial explosion configuration of the present invention.

Fig. 12 is a schematic view of a partial explosion configuration of the present invention.

Fig. 13 is a schematic view of the supporting frame structure of the present invention.

Fig. 14 is a schematic top view of the supporting frame of the present invention.

Fig. 15 is a schematic view of a first stent structure of the present invention.

Fig. 16 is a schematic view of a second stent structure of the present invention.

Fig. 17 is a schematic view of a third stent structure of the present invention.

Fig. 18 is a schematic view of a fourth stent structure of the present invention.

Fig. 19 is a schematic view of a first bending block structure of the present invention.

Fig. 20 is a schematic view of a second bending block structure according to the present invention.

Fig. 21 is a schematic view of a fifth punch and a third retainer block of the present invention.

Reference numerals: lower die holder 01, first circular blanking hole 010, first bar-shaped blanking hole 011, first bracket blanking hole 012, first guide sleeve 013, first lower bolster 02, float pin 020, second circular blanking hole 021, second bar-shaped blanking hole 022, second bracket blanking hole 023, first lower die plate 03, first lower die plate insert 030, third circular blanking hole 0300, third bar-shaped blanking hole 0301, second lower die plate insert 031, third bracket blanking hole 0310, first punch 032, third lower die plate insert 033, bracket pit 0330, first inner guide sleeve 034, upper die holder 04, first rectangular spring 040, first ejector pin 041, first upper bolster 05, first upper clamp 06, second punch 060, first punch 061, first inner guide post, first fixing block 063, first counter bore 0630, second counter bore 0631, first stop plate 07, third stop plate 070, third punch 071, fourth punch 071, first boss 070, first punch 071 08, first punch through-hole 070, a second through hole 081, a first guide pin 082, a lower cushion 09, a second lower cushion plate 10, a second lower template 11, a shaping block 110, a guide hole 1100, a shaping block 111, a flanging insert 112, a second inner guide sleeve 113, a second rectangular spring 12, a second ejector rod 120, a second upper cushion plate 13, a second upper clamping plate 14, a second inner guide post 140, a second stop plate 15, a second upper stripper plate 16, a third through hole 160, a second upper stripper insert 161 and a second guide pin 17; first concave pit 0120, second concave pit 0121, discharging inclined surface 0122, third lower backing plate 20, first bracket 21, first plate 210, first mounting hole 211, first upright post 212, second bracket 22, first mounting block 220, second upright post 221, third bracket 23, second mounting block 230, third upright post 231, fourth bracket 24, second plate 240, fourth upright post 241, discharging inclined surface 242, blanking post 243, blanking through hole 244, second mounting hole 245, baffle plate 25, bending surface 250, third lower plate 26, third inner guide sleeve 260, third rectangular spring 0427, third ejector rod 0428, third upper backing plate 27, third upper clamp plate 28, third inner guide post 280, third fixing block 281, fourth counter bore 282, third stop plate 29, first bending block 290, cutting surface 291, first bending surface 293, avoiding groove 293, second bending block 294, second bending surface 295, fifth bending surface 296, fourth punch 297, a third upper stripper plate 30, a fourth through-hole 300;

Detailed Description

The invention will be further described in the following with specific embodiments in conjunction with the accompanying drawings;

the embodiment provides a support progressive die, which comprises a lower die holder 01 and an upper die holder 04, wherein two outer guide pillars are fixed on the upper surface of the lower die holder 01 along the bolt, outer guide sleeves are arranged on the lower surface of the upper die holder 04 corresponding to the guide pillars, and the outer guide pillars are inserted into the outer guide sleeves for positioning and limiting, so that the upper die holder 04 is prevented from deviating downwards or excessively downwards to cause die damage;

the device also comprises a first station, a second station and a third station which are adjacent in sequence; processing the plate into a bracket through three stations; the lower die base 01 is provided with two first circular blanking holes 010, two first strip-shaped blanking holes 011 and two first bracket blanking holes 012; the two first strip-shaped blanking holes 011 are symmetrically arranged in a front-back adjacent mode, and the two first circular blanking holes 010 are arranged on two sides between the two first strip-shaped blanking holes 011; the first of the two first circular blanking holes 010 is used for punching a circular hole through hole in the plate body, and the other first circular blanking hole 010 plays a role in positioning, so that the plate is prevented from being deviated, and meanwhile, waste materials which are not completely dropped on the plate can be stabbed; the outer contour of the bracket is an irregular figure, and one-time punching cannot be finished, so that the punching of the first strip-shaped blanking hole 011 is performed in advance; the first support blanking holes 012 are positioned on one side of the first strip-shaped blanking hole 011, the shape of the first support blanking holes 012 is matched with the outer contour of the support, and the two first support blanking holes 012 are symmetrically arranged in front and back; the first support blanking hole 012 is used for punching an edge of the plate for the second time, and cutting the outer contour of the support; the first station comprises a first lower base plate 02 arranged on the upper surface of a lower die base 01, six floating pins 020 are arranged on the first lower base plate 02, springs are sleeved at the bottoms of the floating pins 020 and are pressed on the lower die base 01 in an abutting mode, the six floating pins 020 are arranged oppositely in a row, and the floating pins 020 are used for supporting a fed plate; the lower base plate is provided with two second circular blanking holes 021, two second strip-shaped blanking holes 022 and two second bracket blanking holes 023, and the second circular blanking holes 021 and the second strip-shaped blanking holes 022 are arranged among the six floating pins 020; the upper surface of the first lower base plate 02 is provided with a first lower template 03, and the heads of the six floating pins 020 penetrate out of the first lower template 03; a first lower template insert 030, two second lower template inserts 031 and a third lower template insert 033 are fixed in the first lower template 03; the first lower template insert 030 and the first lower backing plate 02 are fixed through bolts, so that the disassembly and the assembly are convenient; the second lower template insert 031 is fixed with the first lower backing plate 02 through bolts, so that disassembly and assembly are convenient; the third lower template insert 033 is fixed to the first lower backing plate 02 by bolts, so that the disassembly and assembly are convenient; the first lower template insert 030 is provided with two third circular blanking holes 0300 and two third strip-shaped blanking holes 0301, the two second lower template inserts 031 are respectively provided with third bracket blanking holes 0310, the third bracket blanking holes 0310 are embedded with first punches 032, and the first punches 032 protrude out of the second lower template inserts 031; the first punch 032 is positioned at a corner, and a plate cannot be directly cut off from the upper die base 04, so that the first punch 032 is placed in the blanking hole 0310 of the third support by adopting a separation structure, so that the plate body can be cut conveniently and reasonably; the upper surface of the third lower template insert 033 is recessed to form a bracket pit 0330 adapted to the outer contour of the bracket, and the third lower template insert 033 is located at one side of the second lower template insert 031; the third lower die insert shapes the cut support plate, so that bending caused by stamping is reduced, next-step treatment can be smoothly carried out, and the quality of the support is improved; the first round blanking hole 010, the second round blanking hole 021 and the third round blanking hole 0300 are communicated, the first bar-shaped blanking hole 011, the second bar-shaped blanking hole 022 and the first bar-shaped blanking hole 011 are communicated, waste is blanked and dropped, the first bracket blanking hole 012, the second bracket blanking hole 023 and the third bracket blanking hole 0310 are communicated, and the waste is blanked and dropped; two edges of the first lower template 03 are provided with first inner guide sleeves 034;

a first rectangular spring 040 is embedded in the upper die holder 04, and a first ejector rod 041 is pressed at the bottom of the first rectangular spring 040; the first station comprises a first upper backing plate 05 arranged on the lower surface of the upper die holder 04, a first rectangular spring 040 is fixed in the first upper backing plate 05, and a first ejector rod 041 penetrates through the first upper backing plate 05; a first upper clamp plate 06 is arranged on the lower surface of the first upper padding plate 05, a first ejector rod 041 penetrates through the first upper clamp plate 06, a second punch 060 is fixed on the first upper clamp plate 06, and the second punch 060 is matched with the third circular blanking hole 0300 for punching a circular hole; a first inner guide post 062 corresponding to the first inner guide sleeve 034 is fixed on the first upper clamp plate 06; a first stop plate 07 is arranged on the lower surface of the first upper clamp plate 06, and the first ejector rod 041 is pressed against the first stop plate 07; the first stopper plate 07 may compress the first rectangular spring 040 by the first push rod 041; a third punch 070 and two fourth punches 071 are fixed on the first stop plate 07, the third punch 070 is matched with the third strip-shaped blanking hole 0301, the fourth punch 071 is matched with the third bracket blanking hole 0310, and the first inner guide post 062 penetrates out of the first stop plate 07; after the second punch 060, the third punch 070 and the fourth punch 071 are blanked, the first rectangular spring 040 is reset to remove the support; the lower surface of the first stop plate 07 is provided with a first upper stripping plate 08, the first upper stripping plate 08 is provided with a first through hole 080 corresponding to the floating material pin 020, and the floating material pin 020 is inserted into the first through hole 080 in the stamping process; a second through hole 081 corresponding to the first punch 032 is formed in the first upper stripping plate 08, the second punch 060, the third punch and the fourth punch 071 penetrate out of the first upper stripping plate 08, and the first inner guide post 062 penetrates out of the first upper stripping plate 08;

the first station is adjacent to the second station, and the plate body on the first station is punched to form the plane shape of the bracket and sent to the second station for flanging;

the second station comprises a second lower cushion plate 10 arranged on the upper surface of the lower die base, and the second lower cushion plate 10 is connected with the lower die base through a bolt; a second lower template 11 is arranged on the upper surface of the second lower cushion plate 10, and the second lower template 11 is connected with the second lower cushion plate 10 through bolts; the second lower template 11 is fixed with a shaping block 110, the shaping block 110 is placed in the second lower template 11, the shaping block 110 is in a long strip shape, and the shaping block 110 is connected with the second lower cushion plate 10 through a bolt; the shaping block 110 can be conveniently disassembled and assembled, and can be replaced by rebounding and scraping by the flanged support after being shaped by more than one person; two sides of the middle of the shaping block 110 are respectively provided with a 7-shaped shaping block 111, the shaping block 111 is connected with the second lower module through a bolt, and the shaping block 111 is detachably connected to facilitate later-stage maintenance and replacement; the two shaping blocks 111 are oppositely arranged and used for the bracket to pass through the middle; after the first flanging is finished, the support moves forward to a position between the two shaping blocks 111 for shaping treatment, so that the support cannot rebound too much to maintain the shape; four flanging inserts 112 are fixed on the second lower template 11, and the flanging inserts 112 are in bolt connection with the second lower cushion plate 10, so that the disassembly, assembly and maintenance are convenient; two of the four flanging inserts 112 are positioned on two sides of the shaping block 110 in a pair, the flanging inserts 112 on two sides of the shaping block 110 are symmetrically arranged, and the flanging inserts 112 on two sides of the shaping block 111 are arranged in parallel; the side surface of the top of the flanging insert 112 is inclined to form an inclined surface, and the top surface of the top of the flanging insert 112 is in transition connection with the inclined surface through a cambered surface, so that the edge of the bracket is flanged; the two symmetrical flanging inserts 112 on one side of the shaping block 111 firstly perform primary flanging treatment on the support to meet the flanging requirement of the support, the support subjected to primary flanging is shaped and kept in shape under the shaping block 111, and the two symmetrical flanging inserts 112 on the other side of the shaping block 111 perform secondary flanging on the support subjected to primary flanging to ensure the flanging effect; two inner guide sleeves 113 are arranged on the inner sides of two edges of the second lower template 11;

a second rectangular spring 12 is embedded in the upper die base, and a second ejector rod 120 is pressed at the bottom of the second rectangular spring 12; the second station comprises a second upper backing plate 13 arranged on the lower surface of the upper die base, the second upper backing plate 13 is connected with the upper die base through a bolt, a second rectangular spring 12 is fixed in the second upper backing plate 13, and a second ejector rod 120 penetrates through the second upper backing plate 13; a second upper clamp 14 is arranged on the lower surface of the second upper backing plate 13, the second ejector rod 120 passes through the second upper clamp 14, and a second inner guide post 140 inserted into the second inner guide sleeve 113 is fixed on the second upper clamp 14; the second inner guide post 140 is inserted into the second inner guide sleeve 113 to realize the positioning function, and the second inner guide post 140 plays a guiding role; a second stop plate 15 is arranged on the lower surface of the second upper clamping plate 14, the second stop plate 15 is connected with the second upper clamping plate 14 through a bolt, the second top rod 120 is pressed against the second stop plate 15, and the second inner guide post 140 penetrates out of the second stop plate 15; the second stop plate 15 is pressed on the second top rod 120 to play an ascending role, and the support can be subjected to flanging treatment and then is stripped; the lower surface of the second stop plate 15 is arranged on a second upper stripping plate 16, the second upper stripping plate 16 is connected with the second stop plate 15 through a bolt, a third through hole 160 for inserting the shaping block 111 is formed in the second upper stripping plate 16, second upper stripping plate 16 inserts matched with the four flanging inserts 112 are fixed in the second upper stripping plate 16, the bottom surface part of each second upper stripping plate 16 insert is sunken for inserting the top of the flanging insert 112, the side surface of the top of each second upper supporting plate insert is sunken to form a concave surface matched with the cambered surface of the flanging insert 112, and the second inner guide post 140 penetrates out of the second upper stripping plate 16;

the second station is adjacent to the third station, the bracket on the second station is sent to the third station for bending after flanging, and finally cutting off and blanking;

the third station comprises two symmetrical third lower cushion plates 20 arranged on the upper surface of the lower die base 01, the upper surfaces of the two third lower cushion plates 20 are respectively provided with a third lower template 26, the two third lower templates 26 are also symmetrically arranged, and a support frame is arranged between the two third lower cushion plates 20; the third lower cushion plate 20 and the third lower template 26 are used for heightening the bracket, and can realize bending; a third inner guide sleeve 260 is arranged on the third lower template 26; the support frame is formed by assembling a first support 21, a second support 22, four third supports 23 and a fourth support 24; the first bracket 21 comprises a first plate body 210, the first plate body 210 is fixedly connected with a lower die holder 01, the first plate body 210 is connected with the lower die holder 01 through bolts, three first alternate columns 212 are arranged on the upper surface of the first plate body 210, and a first mounting hole 211 is formed between two adjacent first columns 212 on the first plate body 210; some of the three first upright posts 212 only play a role in supporting, and some of the three first upright posts play a role in supporting during bending; the head of the first upright 212 is used for bending the shape required by the bracket; the second bracket 22 comprises a first mounting block 220 with a cuboid bottom, a second upright column 221 is formed by protruding the middle of the top surface of the first mounting block 220, the second bracket 22 is fixed in a first mounting hole 211, and the first mounting block 220 is arranged in the first mounting hole 211 and connected with the lower die holder 01 through a bolt; the second bracket 22 is detachable and convenient to replace; the third bracket 23 comprises a second mounting block 230 with a cuboid bottom, a third upright post 231 protrudes from the middle of the top surface of the second mounting block 230, and one third bracket 23 is fixed in the other first mounting hole 211; the second mounting block is arranged in the first mounting hole 211 and connected with the lower die holder 01 through a bolt; the third bracket 23 is detachable and convenient to replace; the fourth bracket 24 comprises a second plate 240, the second plate 240 is fixedly connected with the lower die holder 01, and the second plate 240 is connected with the lower die holder 01 through a bolt; the fourth bracket 24 is convenient to disassemble and assemble; the two ends of the upper surface of the second plate body 240 are provided with fourth upright columns 241, the top surface of one of the fourth upright columns 241 inclines to form a blanking inclined surface 242, the blanking inclined surface 242 is convenient for separating and blanking after the supports are cut off, two opposite blanking columns 243 are arranged between the two fourth upright columns 241 on the second plate body 240, a blanking through hole 244 is arranged between the two blanking columns 243, two adjacent supports are cut off and separated at the position of the blanking through hole 244, a second mounting hole 245 is arranged between the blanking columns 243 and the fourth upright columns 241 on the second plate body 240, two third supports 23 are fixed in the second mounting hole 245, and the second mounting hole 245 of each third support 23 is arranged in the second mounting hole 245 and connected with the lower die holder 01 through a bolt; a third bracket 23 is fixed between the first bracket 21 and the fourth bracket 24, and the third bracket 23 arranged between the first bracket 21 and the fourth bracket 24 plays a role in connection and extension; the upper surface of the first mounting block 220 protrudes out of the upper surface of the first board body 210, and the heights between the first board body 210, the second mounting block 230 and the second board body 240 are equal; the widths of two side walls of second upright column 221 protrude the widths of two side walls of first upright column 212, and the outer contour of first upright column 212, the outer contour of third upright column 231 and the outer contour of fourth upright column 241 are the same; the second bracket 22 is positioned at the front end of the support frame, and is used for performing a primary bending function, and bending the bracket to a certain extent but not completely, because the bracket is bent to form a large deformation at two ends, if the bracket is bent completely at one time, the bracket can rebound seriously, and the bending forming is not facilitated; two groups of material blocking assemblies are arranged on the supporting frame at intervals, each material blocking assembly comprises two 7-shaped material blocking plates 25, the two material blocking plates 25 are symmetrically arranged oppositely, and the side surfaces of the heads of the material blocking plates 25 are sunken to form bending surfaces 250; the striker plate 25 plays a role in shielding and shaping the bent bracket; a third bracket 23 is arranged between the two material blocking assemblies, and the third bracket 23 plays a role in supporting the bracket;

the third station comprises an upper die base 04, a third rectangular spring 0427 is embedded in the upper die base 04, and a third ejector rod 0428 is ejected and pressed at the bottom of the third rectangular spring 0427; the top of the third rectangular spring 0427 is embedded into the upper die holder 04, and the third ejector rod 0428 is pressed on the third rectangular spring 0427 in a cylindrical shape; a third upper backing plate 27 is arranged on the lower surface of the upper die holder 04, the third upper backing plate 27 is connected with the lower die holder 01 through a bolt, a third rectangular spring 0427 is fixed in the third upper backing plate 27, and a third ejector rod 0428 penetrates through the third upper backing plate 27; a third upper clamp 28 is arranged on the lower surface of the third upper backing plate 27, the third upper clamp 28 is connected with the third upper backing plate 27 through a bolt, a third ejector rod 0428 passes through the third upper clamp 28, and a third inner guide post 280 corresponding to the third inner guide sleeve 260 is fixed on the third upper clamp 28; the third inner guide post 280 is inserted into the third inner guide sleeve 260 to achieve a guiding function; the lower surface of the third upper clamp plate 28 is provided with a third stop plate 29, the third top bar 0428 is pressed against the third stop plate 29, the third inner guide post 280 penetrates through the third stop plate 29, and the third stop plate 29 can move on the third inner guide post 280 to compress a third rectangular spring 0427 through the third top bar 0428; two first bending blocks 290, four second bending blocks 294 and a fifth punch 296 are fixed to the third stopper plate 29; the two first bending blocks 290 are symmetrically arranged, the two first bending blocks 290 are matched with the second support 22 to realize primary bending of the support, the side surfaces of the first bending blocks 290 are sunken to form arc-shaped cutting surfaces 291, the top surface edge of the first bending blocks 290 is inclined to form a Z-shaped first bending surface 292, the top surface of the first bending blocks 290 is sunken to form a position avoiding groove 293, and the first bending surface 292 is used for jacking the support; the four second bending blocks 294 are arranged on one side of the first bending block 290, the four second bending blocks 294 are arranged in an array, two of the four second bending blocks 294 are symmetrically arranged in a group, the top edge of the second bending block 294 is inclined to form an S-shaped second bending surface 295250, and the second bending surface 295250 is used for pressing against the support; the fifth punch 296 is used for inserting into the blanking through hole 244 to separate two adjacent brackets; a third upper stripping plate 30 is arranged on the lower surface of the third stop plate 29, a fourth through hole 300 for inserting the head of the striker plate 25 is formed in the third upper stripping plate 30, the fourth through hole 300 and the second bending block 294 are alternately arranged, and the third inner guide post 280 penetrates out of the third upper stripping plate 30; the lower surface of the lower die holder 01 is provided with a lower foot pad 09; the lower foot 09 is used for making the lower die holder 01 too high, is suitable for requirements of different heights, and has higher practicability.

The use process comprises the following steps:

blanking: an automatic feeding machine is arranged on one side of the lower die holder 01, the automatic feeding machine is in the prior art and is not described herein any more, and a coiled material or a plate passes through the automatic feeding machine and is placed on the floating pin 020; the upper die base 04 descends, the first inner guide pillar 062 is firstly inserted into the first inner guide sleeve 034, the second punch 060 punches a hole firstly to punch a round hole, the upper die base 04 continues descending, the first rectangular spring 040 is compressed, the punching is completed, the upper die base 04 ascends, the first rectangular spring 040 resets, the second punch 060 is pushed against, and the plate is separated; the designed step distance for the plate to move forward is achieved, the upper die base 04 moves downward, the second punch 060 and the third punch 070 punch the plate again, blanking is achieved, the designed step distance for the plate to move forward is achieved, the second punch 060, the third punch 070, the fourth punch 071 and the first punch 032 on the lower die base 01 continue to punch the plate, and the shape of the support is punched on the plate; after blanking is finished, the plate moves forward by a designed step distance, and the support is shaped in a third lower template insert;

flanging: the bracket which is shaped on the insert of the third lower template is conveyed to the two flanging inserts 112 in front for carrying out first flanging treatment through an automatic feeder, the upper die base moves downwards, the insert of the second upper stripper plate 16 is sleeved in the flanging insert 112 to flange the edge of the bracket, the upper die base continues to move downwards, the shaping block 111 is inserted into the third through hole 160, the upper clamping plate is jacked, the second rectangular spring 12 is compressed, the flanging is finished, the upper die base moves upwards, the second rectangular spring 12 resets, the second upper clamping plate 14 moves downwards, and the bracket is stripped; the bracket moves forward by a designed step distance to move forward between the two shaping blocks 111 to shape and maintain the shape; the bracket moves forward by a designed step distance, the two flanging insert pieces 112 at the back perform flanging and shaping on the bracket which is flanged for the first time, and the bracket is flanged;

bending and cutting: the bracket after being turned is conveyed to a second bracket 22, the bracket is firstly bent preliminarily, an upper die base 04 moves downwards, two first bending blocks 290 bend two sides of the bracket, the second upright post 221 of the second bracket 22 is wide, so that excessive bending cannot occur, the upper die base 04 continues to move downwards, a third stop plate 29 moves upwards, a third rectangular spring 0427 is compressed, the bending is completed, the upper die base 04 moves upwards, the third rectangular spring 0427 resets, and the first bending blocks 290 eject out the bracket for blanking; the bracket moves forward by a designed step distance, the upper die base 04 descends, and the second bending blocks 294 at the two front ends bend the bracket for the second time, so that the bending reaches the design standard; after bending and forming, the bracket moves forwards by the designed step pitch, the first shaping is carried out between the two opposite striker plates 25 which move forwards to the front end, after shaping is completed, the bracket moves forwards by the designed step pitch again, and the second bending blocks 294 at the two rear ends carry out third bending and shaping on the bracket, so that the first two bending effects are ensured, and the shaping and non-rebound effects can be achieved; the supports move forward by a designed step distance, the two opposite material blocking plates 25 moving forward to the rear end are shaped for the second time, after shaping is completed, the two adjacent supports move forward to the material cutting through hole 244, the fifth punch 296 of the upper die base 04 cuts off the material cutting through hole, a single support directly slides down from the blanking inclined plane 242 and falls off, and the supports are separated;

further, three first guide sleeves 013 are arranged on the first lower backing plate 02, and the three first guide sleeves 013 are connected with the two first circular blanking holes 010 in a straight line; four first guide pins 082 are arranged on the first upper stripper plate 08, and the four guide pins are in line with the connecting line of the second punch 060; the first guide pin 082 is used for inserting into the first guide sleeve 013; the first guide pin 082 plays a role in positioning the round hole on the bracket, and the bracket is prevented from deviating in the moving process.

Further, a first fixing block 063 is fixed in the upper clamping plate, the first fixing block 063 is fixed with the first upper backing plate 05 through bolts, and a first counter bore 0630 and a second counter bore 0631 are formed in the top surface of the first fixing block 063; the head surface of the second punch 060 protrudes to form a first boss 061 and the head surface of the third punch 070 protrudes to form a second boss; the first boss 061 is sleeved in the first counter bore 0630 to be fixed, and the second boss is sleeved in the second counter bore 0631 to be fixed; a second fixing block is fixed in the upper clamping plate, the second fixing block is fixed with the first upper backing plate 05 through bolts, a third counter bore is formed in the top surface of the second fixing block, a third boss is formed on the surface of the head of the fourth punch 071, and the third boss is sleeved in the third counter bore to form a fixing hole; the second punch 060 and the third punch 070 are sleeved in from the back side of the first fixing block 063, the first fixing block 063 is placed into the first clamping plate to be connected with the first upper backing plate 05 through bolts, and the second punch 060 and the third punch 070 are clamped and fixed by the first upper backing plate 05; the fourth punch 071 is clamped and fixed by the second fixed block and the first upper backing plate 05 from the second fixed block;

further, two guide holes 1100 are formed in the shaping block 110, two second guide pins 17 are fixed on the second upper stripping plate 16, and the second guide pins 17 penetrate through the bracket and are inserted into the guide holes 1100; the second guide pin 17 penetrates through a through hole in the middle of the support, so that the support plays a role in positioning in the advancing process, the support is prevented from deviating, and the flanging effect is better.

Further, a third fixing block 281 is fixed in the third upper clamping plate 28, a fourth counter bore 282 is formed in the top surface of the third fixing block 281, a fourth boss 297 is formed on the surface of the head of the fifth punch 296, and the fourth boss 297 is sleeved in the fourth counter bore 282 to be fixed; the fifth punch 296 is sleeved on the third fixing block 281, the third fixing block 281 is connected with the third upper cushion plate 27 through a bolt, and the fifth punch 296 is clamped and kept fixed by the third upper cushion plate 27 and the third fixing block 281;

further, the lower surface of the upper die base 04 is recessed to form a first recess 0120 for placing the first mounting block 220 and a second recess 0121 for placing the second mounting block 230; facilitating the fixing of the first mounting block 220 and the second mounting block 230;

further, the side wall of the lower die holder is provided with a discharging inclined plane 0122 which is parallel to the blanking inclined plane 242; the support after can conveniently separating has the directional drop, can not drop wantonly.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like, refer to orientations or positional relationships that are based on the orientations or positional relationships shown in the drawings, or the orientations or positional relationships that the products of the present invention are conventionally placed in use, or the orientations or positional relationships that are conventionally understood by those skilled in the art, and are used for convenience in describing and simplifying the description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims (10)

1. The utility model provides a support upgrades mould, includes upper die base and die holder, its characterized in that: the device also comprises a first station, a second station and a third station which are adjacent in sequence;

two first circular blanking holes, two first strip-shaped blanking holes and two first bracket blanking holes are formed in the lower die base; the two first strip-shaped blanking holes are symmetrically arranged in a front-back adjacent mode, the two first circular blanking holes are arranged on two sides between the two first strip-shaped blanking holes, the first support blanking holes are located on one side of the first strip-shaped blanking holes, the shape of the first support blanking holes is matched with the outer contour of a support, and the two first support blanking holes are symmetrically arranged in a front-back adjacent mode; the first station comprises a first lower base plate arranged on the upper surface of a lower die base, six floating pins are arranged on the first lower base plate, springs are sleeved at the bottoms of the floating pins and are pressed on the lower die base, the six floating pins are arranged oppositely in a row of three, two second circular blanking holes, two second strip-shaped blanking holes and two second support blanking holes are formed in the lower base plate, and the second circular blanking holes and the second strip-shaped blanking holes are formed among the six floating pins; the upper surface of the first lower backing plate is provided with a first lower template, and the heads of the six floating pins penetrate out of the first lower template; a first lower template insert, two second lower template inserts and a third lower template insert are fixed in the first lower template; the first lower template insert is provided with two third circular blanking holes and two third strip-shaped blanking holes, the two second lower template inserts are respectively provided with third support blanking holes, a first punch is embedded in the third support blanking holes, the first punch protrudes out of the second lower template insert, the upper surface of the third lower template insert is sunken to form a support pit matched with the outer contour of the support, and the third lower template insert is positioned on one side of the second lower template insert; the first circular blanking hole, the second circular blanking hole and the third circular blanking hole are communicated, the first strip-shaped blanking hole, the second strip-shaped blanking hole and the first strip-shaped blanking hole are communicated, and the first support blanking hole, the second support blanking hole and the third support blanking hole are communicated; two edges of the first lower template are provided with first inner guide sleeves;

a first rectangular spring is embedded in the upper die base, and a first ejector rod is pressed at the bottom of the first rectangular spring; the first station comprises a first upper base plate arranged on the lower surface of the upper die holder, a first rectangular spring is fixed in the first upper base plate, and a first ejector rod penetrates through the first upper base plate; a first upper clamping plate is arranged on the lower surface of the first upper backing plate, a first ejector rod penetrates through the first upper clamping plate, a second punch is fixed on the first upper clamping plate, and the second punch is matched with the third circular blanking hole and used for punching a circular hole; a first inner guide pillar corresponding to the first inner guide sleeve is fixed on the first upper clamp plate; the lower surface of the first upper clamping plate is provided with a first stop plate, a first ejector rod is propped against the first stop plate, a third punch and two fourth punches are fixed on the first stop plate, the third punch is matched with a third strip-shaped blanking hole, the fourth punch is matched with a third support blanking hole, and a first inner guide pillar penetrates out of the first stop plate; the lower surface of the first stop plate is provided with a first upper stripping plate, the first upper stripping plate is provided with a first through hole corresponding to the floating pin, the first upper stripping plate is provided with a second through hole corresponding to the first punch, the second punch, the third punch and the fourth punch all penetrate out of the first upper stripping plate, and the first inner guide pillar penetrates out of the first upper stripping plate;

the second station comprises a second lower base plate arranged on the upper surface of the lower die base; a second lower template is arranged on the upper surface of the second lower backing plate, a shaping block is fixed on the second lower template, the shaping block is in a long strip shape, 7-shaped shaping blocks are respectively arranged on two sides of the middle of the shaping block, and the two shaping blocks are oppositely arranged and used for enabling the support to penetrate through the middle of the support; four flanging inserts are fixed on the second lower template, two of the four flanging inserts are positioned on two sides of the shaping block in a pair, the flanging inserts on the two sides of the shaping block are symmetrically arranged, and the flanging inserts on the two sides of the shaping block are arranged in parallel; the side surface of the top of the flanging insert is inclined to form an inclined surface, and the top surface of the top of the flanging insert is in transitional connection with the inclined surface through a cambered surface, so that the edge of the bracket is flanged; a second inner guide sleeve is arranged on the inner sides of two edges of the second lower template;

a second rectangular spring is embedded in the upper die base, and a second ejector rod is pressed at the bottom of the second rectangular spring; the second station comprises a second upper base plate arranged on the lower surface of the upper die holder, a second rectangular spring is fixed in the second upper base plate, and a second ejector rod penetrates through the second upper base plate; a second upper clamp plate is arranged on the lower surface of the second upper backing plate, a second ejector rod penetrates through the second upper clamp plate, and a second inner guide pillar inserted into a second inner guide sleeve is fixed on the second upper clamp plate; a second stop plate is arranged on the lower surface of the second upper clamping plate, a second ejector rod is pressed against the second stop plate, and a second inner guide column penetrates out of the second stop plate; the lower surface of the second stop plate is arranged on a second upper stripping plate, two third through holes for inserting the shaping blocks are formed in the second upper stripping plate, second upper stripping plate inserts matched with the four flanging inserts are fixed in the second upper stripping plate, the bottom surface of each second upper stripping plate insert is partially sunken for inserting the top of the flanging insert, the side surface of the top of each second upper supporting plate insert is sunken to form a concave surface matched with the cambered surface of the flanging insert, and a second inner guide post penetrates out of the second upper stripping plate;

the third station comprises two symmetrical third lower cushion plates arranged on the upper surface of the lower die base, a support frame is arranged between the two third lower cushion plates, the upper surfaces of the two third lower cushion plates are respectively provided with a third lower die plate, and the two third lower die plates are also symmetrically arranged; a third inner guide sleeve is arranged on the third lower template;

the support frame is formed by assembling a first support, a second support, four third supports and a fourth support; the first support comprises a first plate body, the first plate body is fixedly connected with the lower die base, three first stand columns which are arranged at intervals are arranged on the upper surface of the first plate body, and a first mounting hole is formed between two adjacent first stand columns on the first plate body; the second support comprises a first mounting block with a cuboid bottom, a second upright post protrudes from the middle of the top surface of the first mounting block, and a second support is fixed in the first mounting hole; the third support comprises a second mounting block with a cuboid bottom, a third upright post protrudes from the middle of the top surface of the second mounting block, and one third support is fixed in the other first mounting hole; the fourth support comprises a second plate body, the second plate body is fixedly connected with the lower die holder, the two ends of the upper surface of the second plate body are provided with fourth stand columns, the top surface of one of the fourth stand columns inclines to form a blanking inclined plane, two opposite blanking columns are arranged between the two fourth stand columns on the second plate body, a blanking through hole is formed between the two blanking columns, a second mounting hole is formed between the blanking column and the fourth stand column on the second plate body, and the two third supports are fixed in the second mounting hole; a third bracket is fixed between the first bracket and the fourth bracket;

the upper surface of the first mounting block protrudes out of the upper surface of the first plate body, and the first plate body, the second mounting block and the second plate body are equal in height; the width of two side walls of the second upright post protrudes the width of two side walls of the first upright post, and the outer contour of the first upright post, the outer contour of the third upright post and the outer contour of the fourth upright post are the same;

two groups of material blocking assemblies are arranged on the support frame at intervals, each material blocking assembly comprises two 7-shaped material blocking plates, the two material blocking plates are symmetrically arranged oppositely, and the side surfaces of the heads of the material blocking plates are sunken to form bending surfaces; a third support is arranged between the two groups of material blocking assemblies;

a third rectangular spring is embedded in the upper die base, and a third ejector rod is pressed at the bottom of the third rectangular spring; the third station comprises a third upper base plate arranged on the lower surface of the upper die holder, a third rectangular spring is fixed in the third upper base plate, and a third ejector rod penetrates through the third upper base plate; a third upper clamp plate is arranged on the lower surface of the third upper backing plate, a third ejector rod penetrates through the third upper clamp plate, and a third inner guide pillar corresponding to the third inner guide sleeve is fixed on the third upper clamp plate; the lower surface of the third upper clamping plate is provided with a third stop plate, a third ejector rod is pressed against the third stop plate, two first bending blocks, four second bending blocks and a fifth punch are fixed on the third stop plate, the two first bending blocks are symmetrically arranged, the two first bending blocks are matched with the second support to realize primary bending of the support, the side surface of each first bending block is sunken to form an arc-shaped cutting surface, the top surface edge of each first bending block is inclined to form a Z-shaped first bending surface, the top surface of each first bending block is sunken to form an avoiding groove, and the first bending surface is used for pressing the support; the four second bending blocks are arranged on one side of the first bending block, the four second bending blocks are arranged in an array mode, two second bending blocks are symmetrically arranged in a group mode, the edge of the top surface of each second bending block inclines to form an S-shaped second bending surface, and the second bending surface is used for jacking the support; the fifth punch is used for being inserted into the material cutting through hole to realize the separation of two adjacent brackets; the third inner guide column penetrates out of the third stop plate; a third upper stripping plate is arranged on the lower surface of the third stop plate, a fourth through hole for inserting the head of the material baffle plate is formed in the third upper stripping plate, the fourth through hole and the second bending block are alternately arranged, and a third inner guide column penetrates out of the third upper stripping plate; the lower surface of the lower die base is provided with a lower pad foot.

2. The carrier progressive die of claim 1, wherein: the first lower base plate is provided with three first guide sleeves, and the three first guide sleeves are in line connection with the two first circular blanking holes; four first guide pins are arranged on the first upper stripping plate, and connecting lines of the four guide pins and the second punch are in a straight line; the first guide pin is for insertion into the first guide sleeve.

3. The carrier progressive die of claim 1, wherein: a first fixing block is fixed in the first upper clamping plate, and a first counter bore and a second counter bore are formed in the top surface of the first fixing block; the surface of the head of the second punch protrudes to form a first boss, and the surface of the head of the third punch protrudes to form a second boss; the first boss is sleeved in the first counter bore to form a fixing, and the second boss is sleeved in the second counter bore to form a fixing; a second fixing block is fixed in the first upper clamping plate, a third counter bore is formed in the top face of the second fixing block, a third boss is formed on the surface of the head of the fourth punch, and the third boss is sleeved in the third counter bore to form fixing.

4. The carrier progressive die of claim 1, wherein: the first lower template insert and the first lower backing plate are fixed through bolts; the second lower template insert is fixed with the first lower base plate through a bolt; the third lower template insert is fixed with the first lower backing plate through bolts.

5. The carrier progressive die of claim 1, wherein: two guide holes are formed in the shaping block, two second guide pins are fixed on the second upper stripping plate, and the second guide pins penetrate through the support and are inserted into the guide holes.

6. The carrier progressive die of claim 1, wherein: the shaping block is connected with the second lower backing plate through a bolt; the shaping block is connected with the second lower backing plate through a bolt; the flanging insert is connected with the second lower backing plate through a bolt; the second upper stripping plate insert is connected with the second stop plate through a bolt.

7. The carrier progressive die of claim 1, wherein: a third fixing block is fixed in the third upper clamping plate, a fourth counter bore is formed in the top surface of the third fixing block, a fourth boss is formed on the surface of the head of the fifth punch, and the fourth boss is sleeved in the fourth counter bore to be fixed.

8. The carrier progressive die of claim 1, wherein: the lower surface of the upper die holder is recessed to form a first pit for placing the first mounting block and a second pit for placing the second mounting block; the side wall of the lower die base is provided with a discharging inclined plane which is parallel to the blanking inclined plane.

9. The carrier progressive die of claim 1, wherein: the first plate body of the first support is connected with the lower die holder through a bolt, the first mounting block of the second support is connected with the lower die holder through a bolt, the second mounting block of the third support is connected with the lower die holder through a bolt, and the second plate body of the second support is connected with the lower die holder through a bolt.

10. The carrier progressive die of claim 1, wherein: the first bending block is connected with the third upper clamping plate through a bolt, the second bending block is connected with the third upper clamping plate through a bolt, and the first bending block is connected with the third upper clamping plate through a bolt; the second bending block is connected with the third upper clamping plate through a bolt.

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