CN213968590U - Support bending device - Google Patents

Support bending device Download PDF

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Publication number
CN213968590U
CN213968590U CN202020055877.1U CN202020055877U CN213968590U CN 213968590 U CN213968590 U CN 213968590U CN 202020055877 U CN202020055877 U CN 202020055877U CN 213968590 U CN213968590 U CN 213968590U
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CN
China
Prior art keywords
die
bending
lower die
plate
female
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN202020055877.1U
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Chinese (zh)
Inventor
梁士红
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Vocational Institute of Industrial Technology
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Suzhou Vocational Institute of Industrial Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201910229813.0A external-priority patent/CN109759512A/en
Priority claimed from CN201910366017.1A external-priority patent/CN109926493A/en
Application filed by Suzhou Vocational Institute of Industrial Technology filed Critical Suzhou Vocational Institute of Industrial Technology
Application granted granted Critical
Publication of CN213968590U publication Critical patent/CN213968590U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D35/00Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
    • B21D35/001Shaping combined with punching, e.g. stamping and perforating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00Shaping by press-cutting; Perforating
    • B21D28/02Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/14Dies
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00Shaping by press-cutting; Perforating
    • B21D28/24Perforating, i.e. punching holes
    • B21D28/34Perforating tools; Die holders
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D35/00Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
    • B21D35/002Processes combined with methods covered by groups B21D1/00 - B21D31/00
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00Tools as parts of machines covered by this subclass
    • B21D37/08Dies with different parts for several steps in a process
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D45/00Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
    • B21D45/02Ejecting devices
    • B21D45/04Ejecting devices interrelated with motion of tool
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D7/00Bending rods, profiles, or tubes
    • B21D7/16Auxiliary equipment, e.g. for heating or cooling of bends

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

The utility model provides a bracket bending forming device, which comprises an upper die, a lower die and a feeding mechanism arranged between the upper die and the lower die, wherein a punching guide positive pin process hole component, a punching waste cutting process mechanism, a bending process mechanism and a cutting process mechanism are sequentially arranged in die holes corresponding to the upper die and the lower die; the bending working procedure mechanism comprises at least one group of bending assemblies, each bending assembly comprises a bending male die, a bending female die, an inclined wedge block and a bending lower die loose core, the upper ends of the bending male die and the inclined wedge block are arranged on the upper die side by side, and the bending female die and the bending lower die loose core are arranged on the lower die side by side; the upper die is opposite to the lower die in the vertical direction, and the lower end of the inclined wedge block is opposite to the upper end of the bent lower die loose core and matched with the upper end of the bent lower die loose core through an inclined plane. The part to be processed is arranged on the lower die, the upper end of the bent lower die loose core extends out of the upper surface of the lower die, and the side face of the bent lower die loose core abuts against one side with the part to be processed.

Description

Support bending device
Technical Field
The utility model relates to a mold design technical field especially relates to a support bending device.
Background
The support is the essential part on the electrical product, and the output of product is big, and size precision requires highly. Therefore, it is important to ensure the angular accuracy of the bent piece after bending in terms of the design of the stamping process and the determination of the structure of the die. According to the deformation characteristic of a bending piece, the part is easy to rebound during bending, and the rebound is inevitable, so that only measures can be taken to reduce the rebound, and the method is generally a reasonably designed bending die structure.
In the bending method of the part in the prior art, the part is bent and formed by utilizing the vertical relative motion of the bending male die and the bending female die, the workpiece rebounds after the bending is finished, the rebounding correction difficulty of the structures of the bending male die and the bending female die is high after the workpiece rebounds, and the bending cannot be effectively corrected in the horizontal direction.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned problems, the utility model discloses a support bending device, which comprises an upper die, a lower die and a feeding mechanism arranged between the upper die and the lower die, wherein a punching guide positive pin process hole component, a punching waste cutting process mechanism, a bending process mechanism and a cutting process mechanism are sequentially arranged in die holes corresponding to the upper die and the lower die; the bending working procedure mechanism comprises at least one group of bending assemblies, each bending assembly comprises a bending male die, a bending female die, an inclined wedge block and a bending lower die loose core, the upper ends of the bending male die and the inclined wedge block are arranged on the upper die side by side, and the bending female die and the bending lower die loose core are arranged on the lower die side by side; the upper die is vertically opposite to the lower die, and the lower end of the inclined wedge block is opposite to the upper end of the bent lower die loose core and matched with the upper end of the bent lower die loose core through an inclined plane;
the part to be processed is arranged on the lower die, and the bending position of the part is opposite to the bending female die; the upper end of the bent lower die loose core extends out of the upper surface of the lower die, and the side surface of the bent lower die loose core abuts against one side of a part to be processed; the lower die is pressed downwards to drive the bending male die and the inclined wedge block to move downwards, and the bending male die drives the part to be processed to extend into the bending female die to realize vertical upward bending force application; and the inclined wedge block presses down the bent lower die core-pulling device, so that the bent lower die core-pulling device moves towards one side of the part to be processed, and bending force application in the horizontal direction is realized.
Preferably, the lower end of the inclined wedge block is provided with a first inclined plane, the upper end of the bent lower die core pulling is provided with a second inclined plane, and the first inclined plane presses on the second inclined plane during bending to apply force downwards to push the bent lower die core pulling to move horizontally.
Preferably, the bending assembly further comprises a reset screw, one end of the reset screw is connected with the bending lower die for core pulling, and the other end of the reset screw is installed on the lower die; and a spring is arranged between the other end of the reset nail and the lower die.
Preferably, the upper die comprises an upper die plate, an upper base plate, an upper fixing plate, a middle base plate and a guide plate, the upper die plate, the upper base plate and the upper fixing plate are connected together, the middle base plate is connected with the guide plate, and the whole formed by the upper die plate, the upper base plate and the upper fixing plate and the whole formed by the middle base plate and the guide plate can reciprocate up and down;
the lower die comprises a lower die plate, a lower backing plate and a lower fixing plate which are sequentially connected, the lower fixing plate is opposite to the guide plate, and the strip material is pressed between the lower fixing plate and the guide plate;
the strip is positioned on the feeding mechanism, the feeding mechanism feeds the strip between the upper die and the lower die, and the strip sequentially passes through the punch and the die of the guide pin process hole component, the blanking and waste cutting process mechanism, the bending process mechanism and the cutting process mechanism under the action of the feeding mechanism to finish the processing of each process.
Preferably, the guide pin punching process hole component, the blanking and waste cutting process component and the cutting process component all comprise matched male dies and female dies, the male dies are arranged on the upper die, and the female dies are arranged on the lower die.
Preferably, the upper end of the male die is sleeved with an upper splicing block and is arranged on the upper fixing plate through the upper splicing block; the lower end of the upper splicing block extends out of the lower end face of the upper fixing plate and is opposite to the upper end face of the middle backing plate; the lower end of the male die penetrates through the middle base plate and the guide plate and extends into the female die, the lower end of the male die penetrates through the guide plate through a lower splicing block, and the lower end of the male die can move along the inner portion of the lower splicing block.
Preferably, the female die is composed of female die split blocks and female die cushion blocks, a female die frame is arranged on the lower fixing plate, and the female die split blocks and the female die cushion blocks are embedded into the female die frame.
Preferably, the feeding mechanism comprises a feeding plate and a feeding device, a guide groove is formed in the feeding plate, the strip is placed in the guide groove, and the feeding device controls the strip to move along the guide groove.
Preferably, the lower die is provided with a plurality of lifting blocks for lifting the strip material, wherein a vent hole is formed in the middle of at least one of the lifting blocks, one end of the vent hole is connected with a vent pipe to suck high-pressure air, and the other end of the vent hole is aligned with the guide groove.
Preferably, a guide pin is arranged at a position corresponding to each process component on the upper die, and is used for accurately spacing the strip.
The utility model discloses owing to adopt above technical scheme, make it compare with prior art, have following advantage and positive effect:
the utility model provides a pair of support bending apparatus, realize vertical bending force through crooked terrace die to the part, still loose core through crooked lower mould simultaneously and realize the bending force of horizontal direction to the part, the bending of part has been realized jointly to the bending force of two sides, for only realizing crooked mode (this mode only has vertical bending force) through the male and female mould among the prior art, adopt wedge drive mechanism to implement on the horizontal direction and rectify the bending, can effectual degree that reduces crooked resilience, and the structure of loosing core of crooked lower mould is convenient for take out and repair the mould, repair the mould compensation timely to the angle of curvature, and structural design is reasonable.
Drawings
The above and other features and advantages of the present invention will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a front view of a stent;
FIG. 2 is a side view of the bracket;
FIG. 3 is an expanded view of the stent;
FIG. 4 is a layout drawing of the strip processing process of the present invention
Fig. 5 is a cross-sectional view of the bracket bending device provided by the present invention;
fig. 6 is a top view of the lower mold and the feeding mechanism of the present invention;
fig. 7 is a schematic structural view of a notch assembly of the present invention;
fig. 8 is a schematic structural view of a second bending assembly according to the present invention;
fig. 9 is a schematic structural view of a third bending assembly according to the present invention;
fig. 10 is a schematic structural diagram of the middle shaping assembly according to the present invention.
Detailed Description
The invention will be described in more detail hereinafter with reference to the accompanying drawings showing embodiments of the invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity.
The utility model provides a bracket bending forming device which is mainly used for processing a bracket bent in multiple angles; the bracket shown in fig. 1-3 is a supporting part on an electrical switch, and the bracket shown in fig. 1-3 is taken as an example to describe the bracket bending device in detail, and of course, the bracket bending device provided by the present invention is not limited to the processing of the bracket shown in fig. 1-3, and can be adjusted appropriately according to the specific structural form of the part, so that the present invention is suitable for various parts bent in multiple angles, and is not limited herein.
Referring to fig. 4-6, the bracket bending forming device comprises an upper die, a lower die and a feeding mechanism arranged between the upper die and the lower die, wherein a punching guide positive pin process hole assembly, a punching waste cutting process mechanism, a bending process mechanism and a cutting process mechanism are sequentially arranged in die holes corresponding to the upper die and the lower die; the bending working procedure mechanism comprises at least one group of bending assemblies, each bending assembly comprises a bending male die, a bending female die, an inclined wedge block and a bending lower die loose core, the upper ends of the bending male die and the inclined wedge block are arranged on the upper die side by side, and the bending female die and the bending lower die loose core are arranged on the lower die side by side; the upper die is opposite to the lower die in the vertical direction, and the lower end of the inclined wedge block is opposite to the upper end of the bent lower die loose core and matched with the upper end of the bent lower die loose core through an inclined plane;
the part to be processed is arranged on the lower die, and the bending position of the part is opposite to the bending female die; the upper end of the bent lower die loose core extends out of the upper surface of the lower die, and the side surface of the bent lower die loose core abuts against one side of the part to be processed; the lower die is pressed downwards to drive the bending male die and the inclined wedge block to move downwards, and the bending male die drives the part to be processed to extend into the bending female die to realize vertical upward bending force application; the inclined wedge blocks press the bent lower die to loose the core, so that the bent lower die loose core moves towards one side of the part to be processed, and bending force application in the horizontal direction is achieved.
The utility model provides a support bending device, realize vertical bending force through crooked terrace die to the part, still loose core through crooked lower mould simultaneously and realize the bending force of horizontal direction to the part, the bending of part has been realized jointly to the bending force of two sides, only realize crooked mode (this mode only has vertical bending force) through the male and female mould for among the prior art, adopt wedge drive mechanism to implement on the horizontal direction and rectify the bending, the degree that can effectual reduction crooked resilience, and the structure of loosing core is convenient for take out and repair the mould to crooked lower mould, repair the mould compensation timely to the angle of curvature, structural design is reasonable.
In this embodiment, the upper mold mainly includes a lining plate 7, an upper mold plate 8, an upper backing plate 9, an upper fixing plate 10, a middle backing plate 11 and a guide plate 12, wherein the lining plate 7, the upper mold plate 8, the upper backing plate 9 and the upper fixing plate 10 are connected together, and the middle backing plate 11 and the guide plate 12 are connected together; the whole body formed by the lining plate 7, the upper template 8, the upper backing plate 9 and the upper fixing plate 10 can reciprocate up and down relative to the whole body formed by the middle backing plate 11 and the guide plate 12. The lower die mainly comprises a lower die plate 13, a lower backing plate 14 and a lower fixing plate 15 from top to bottom, the lower die plate 13, the lower backing plate 14 and the lower fixing plate 15 are sequentially connected together, and the lower die plate 13 is opposite to the guide plate 12.
The feeding mechanism is arranged between the upper die and the lower die and mainly comprises a feeding plate and a feeding device, a guide groove 17 is formed in the middle of the feeding plate along the length direction, a processed strip material is placed in the guide groove 17, and the strip material is fed from right to left along the guide groove 17 under the control of the feeding device; when the guide plate 12 is lifted after one-time stamping is finished, the guide plate 12 is pressed down again after the feeding device controls the strip to move along the guide groove at a fixed distance, and each process component continues to process the strip.
In this embodiment, the guide pins are provided on the upper die for precisely positioning the bar material in each processing step, because the guide pin punching process hole assembly, the punching and cutting process mechanism, the bending process mechanism and the cutting process mechanism correspond to the respective processing steps.
In this embodiment, in order to ensure that each time a strip material completes a stamping stroke, the strip material is lifted upwards by a certain distance after the stamping is completed, and then the strip material is advanced forwards under the action of the feeding device; referring to fig. 5, the present invention is realized by using a lifting block assembly, in this embodiment, three lifting blocks 16 are used and distributed on the lower die along the feeding direction of the strip; wherein, the middle position of the lifting block 16 positioned at the leftmost side is provided with a vent hole, one end of the vent hole is connected with a vent pipe, an air outlet hole of the vent hole is aligned with the channel of the guide groove 17, waste materials generated by blanking in the channel of the guide groove are blown out of the die by high-pressure air, and the setting position of the lifting block is positioned in front of the punching and cutting waste process mechanism.
The utility model provides a support bending device refers to fig. 3 and makes the strip material pass through in proper order and leads positive round pin technology punch combination spare, blanking and cut useless process mechanism, crooked process mechanism and cut off process mechanism, carries out the detailed description with regard to the concrete structure of each mechanism below.
First, punch guide pin process hole component
In this embodiment, the guide pin punching process hole assembly 1 is used for punching holes in the strip material when the strip material is not processed, so as to be matched with guide pins arranged at each station on the upper die when the strip material is moved to the later processing, and the effect of accurately spacing the strip material is achieved. The guide pin punching process hole component 1 comprises a guide pin punching process hole male die and a guide pin punching process hole female die, wherein a first upper splicing block is arranged on an upper fixing plate, the lower end of the first upper splicing block extends out of the lower surface of the upper fixing plate to the upper part of the upper surface of a middle cushion plate, and the upper end of the guide pin punching process hole male die extends into the first upper splicing block and is fixedly connected with the first upper splicing block; a lower first splicing block is arranged at the position, corresponding to the first upper splicing block, on the guide plate, the lower end of a positive pin punching process hole male die penetrates through the middle base plate and then penetrates through the guide plate through the first lower splicing block, and the positive pin punching process hole male die can slide along the first lower splicing block; the utility model has the advantages that the arrangement of the first upper splicing block and the second lower splicing block ensures that when the upper fixing plate drives the punch of the pilot pin fabrication hole to reciprocate up and down, the first upper splicing block and the first lower splicing block play a role in protecting the whole length of the punch of the pilot pin fabrication hole, thereby avoiding the smaller punch of the pilot pin fabrication hole from being broken by lateral force; the utility model discloses a make the die blade of the complicated shape convenient to process, be convenient for change the maintenance, first die cushion can also be made with lower material of 45 steel price, has reduced the cost of material; the utility model discloses the strip is located to lead just round pin fabrication hole terrace die and leads between the round pin fabrication hole die towards in the course of the work, leads just round pin fabrication hole terrace die downstream towards, stretches into and leads just round pin fabrication hole die to the process of leading just round pin fabrication hole has been accomplished towards.
Second, blanking cuts useless process mechanism
In this embodiment, for the stent shown in fig. 1-2, the blanking and cutting mechanism mainly includes a small circular hole punching assembly 1, a long square hole punching assembly 3, a notch assembly 4, and a waste cutting assembly 5.
As can be seen from fig. 5, in this embodiment, the small round hole punching assembly 1, the rectangular hole punching assembly 3, and the waste cutting assembly 5 have the same structure, and each include a male die and a female die which are matched with each other, the male die is disposed on the upper die, the female die is disposed on the lower die, wherein an upper splice block is sleeved on the upper end of the male die, and is disposed on the upper fixing plate through the upper splice block; the lower end of the upper splicing block extends out of the lower end face of the upper fixing plate and is opposite to the upper end face of the middle cushion plate; the lower end of the male die penetrates through the middle base plate and the guide plate and extends into the female die, the lower end of the male die penetrates through the guide plate through a lower splicing block, and the lower end of the male die can move along the inner part of the lower splicing block; the female die is composed of female die splicing blocks and female die cushion blocks, a female die frame is arranged on the lower fixing plate, and the female die splicing blocks and the female die cushion blocks are embedded into the female die frame.
The small round hole punching assembly 1, the rectangular hole punching assembly 3 and the waste cutting assembly 5 are different only in that the shapes of the male die and the female die which correspond to each other need to be matched with the shapes and sizes which need to be punched respectively.
In the present embodiment, as shown in fig. 7, the notch assembly includes a notch male die 402 and a notch lower top block 403, a notch upper block 401 is disposed on the upper fixed plate 10, a lower end of the notch upper block 401 extends out of a lower surface of the upper fixed plate 10 to above an upper surface of the middle cushion plate 11, and an upper end of the notch male die 402 extends into the notch upper block 401 and is fixedly connected thereto; a notch middle splicing block 405 is arranged on the guide plate 12 at a position corresponding to the notch upper splicing block 401, the lower end of the notch convex die 402 penetrates through the middle cushion plate 11 and then penetrates through the guide plate 12 through the notch middle splicing block 405, and the notch convex die 402 can slide along the notch middle splicing block 405; the utility model discloses a setting of piece 401 on the incision and piece 405 in the incision, make when last solid board 10 drive incision terrace die 402 up-and-down reciprocating motion, piece 401 on the incision, second piece 1004 plays the effect to the full length protection of incision terrace die 402 down, has avoided less incision terrace die 402 to receive the lateral force and break; the cut-out lower top block 403 is mounted on the lower template 13 through the cut-out lower block piece 404, and a cut-out lower ejector rod 406 is further arranged at the lower end of the cut-out lower top block 403, and the cut-out lower ejector rod 406 pushes the cut-out lower top block 403 to move upwards along the cut-out lower block piece 404 for pushing out cut-out waste materials. The lower fixing plate 15 is provided with a second female die frame, the second female die splicing piece 1005 and the second female die cushion block 1006 are embedded into the second female die frame in a matching way, and the second female die splicing piece 1005 is positioned above the second female die cushion block 1006; the utility model discloses between the kicking block 403 under the strip material level in incision terrace die 402 and the incision in the course of the work, incision terrace die 402 downstream cuts, and the waste material of cutting down falls on the kicking block 403 under the incision.
In addition, the structural forms of the chamfering process assembly, the waste cutting process assembly and the cutting process assembly can refer to the structural form of the waste punching and cutting process mechanism, and are not described herein again.
Third, bending process mechanism
In this embodiment, the bending process structure includes three sets of bending assemblies, which correspond to the three processes of bending 1, bending 2, and bending 3 in fig. 4.
In this embodiment, the bending 1 step is used for slightly pressing down the middle portion 6 punched out from the middle of the bracket in fig. 3, the first bending assembly 18 corresponding to the bending 1 step directly comprises a first bending male die mounted on the upper die and a first bending female die mounted on the lower die, and the first bending step of the bracket is realized by matching the first bending male die and the first bending female die.
In this embodiment, the bending 2 process is used to bend the outer frame structure a punched on the support into a V shape from a sheet shape.
Specifically, referring to fig. 8, the second bending assembly 19 corresponding to the bending 2 process includes a second bending male die 1902, a second bending female die 1904, a first wedge 1901, and a first bending lower die core-pulling 1903, the second bending male die 1902 is directly fixed on the upper fixing plate 10 by means of screws or the like, the second bending female die 1904 is mounted on the lower fixing plate 13 and is vertically opposite to the second bending male die 1902, a V-shaped convex portion is provided on the lower end of the second bending male die 1902, and a V-shaped concave portion is provided on the upper end of the second bending female die 1904; an upper end of the first wedge 1901 is mounted on the upper die, the first wedge 1901 can move up and down relative to the upper die, a spring 1907 is arranged between the upper end of the first wedge 1901 and the upper die, the spring 1907 is compressed when the first wedge 1901 moves up, and a first inclined surface is arranged on a lower end surface of the first wedge 1901.
The first curved lower die loose core 1903 is mounted on a lower fixing plate 13 of the lower die, and a second inclined surface matched with the first inclined surface is arranged on the upper end surface of the first curved lower die loose core 1903; the left side of the first curved lower die loose core 1903 is mounted on the lower die through a reset screw 1905 and can move left and right relative to the lower die, one end of the reset screw 1905 is connected with the first curved lower die loose core 1903, and the other end is mounted on the lower die; and a spring 1906 is provided between the other end of the reset screw 1905 and the lower die.
During work, the upper die is pressed downwards, the convex part at the lower end of the first bending male die 1901 pushes the part to be machined into the vertical compression concave part, meanwhile, the first inclined wedge 1901 is pressed downwards to enable the first inclined surface to abut against the second inclined surface, the first inclined surface pushes the second inclined surface, so that the first bending lower die is pushed to loose core 1903 to move rightwards, the first bending lower die is pulled to loose core 1903 to move rightwards, transverse bending force is applied to the part, and the bending 2 process is realized by matching with vertical bending.
In this embodiment, the bend 3 process is used to press bend the stent into the H shape of fig. 4.
Specifically, referring to fig. 9, the third bending assembly 20 corresponding to the bending 3 step, the second bending assembly 19 includes a third bending male die 2002, a third bending female die 2004, a second tapered wedge 2001, a second bending lower die core-pulling 2003, a reset screw 2005 and a spring 2006, and the structural form and the installation manner of the third bending assembly 20 are the same as those of the second bending assembly 19, and the main difference is that a convex portion on the lower end surface of the third bending male die 2002 is rectangular, a concave portion on the upper end of the third bending female die 2004 is rectangular, and other structural forms are not described herein again.
In this embodiment, the bending mechanism further includes a shaping assembly for further shaping the bent stent.
Specifically, referring to fig. 10, the shaping assembly includes a shaping wedge 2101, a shaping lower die loose core 2102, a shaping die 2103, a reset screw 2104 and a spring 2105; the upper end of the shaping tapered wedge 2101 is mounted on the upper die and can move up and down relative to the upper die, and the mounting form of the upper end of the shaping tapered wedge 2101 can refer to the mounting form of the upper end of the first tapered wedge 1901, which is not described herein; the shaping lower die core pulling 2102 is installed on the lower die and can move horizontally relative to the lower die, the right side of the shaping lower die core pulling 2102 is installed on the lower die through a reset nail 2104, and a spring 2105 is arranged between the reset nail 2104 and the lower die.
A third inclined plane and a fourth inclined plane which are matched with each other are respectively arranged on the upper end surface of the lower end surface of the shaping inclined wedge 2101 and the upper end surface of the shaping lower die loose core 2102; the shaping wedge 2101 is provided with a rectangular projection on the left side and the shaping die 2103 is provided with a rectangular recess on the right side, in which the curved part of the bracket is placed.
During work, the upper die is pressed downwards, the shaping inclined wedge block 2101 is pressed downwards to enable the third inclined plane to abut against the fourth inclined plane, the third inclined plane pushes the fourth inclined plane, the shaping lower die core pulling 2102 is pushed to move leftwards, and a convex portion on the left side of the shaping lower die core pulling 2102 extends into a bending portion of a support in a shaping bending die to perform further shaping.
Fourth, cut off process mechanism
In this embodiment, the cutting mechanism has the same structure as the small round hole punching assembly 1, the rectangular hole punching assembly 3, and the waste cutting assembly 5, and includes a male die and a female die that are matched with each other, and the mounting manners of the male die and the female die can refer to the mounting manners of the male die and the female die in the small round hole punching assembly 1, the rectangular hole punching assembly 3, and the waste cutting assembly 5, which are not described herein again, and the difference between the two is that the shapes of the male die and the female die that correspond to each other need to be matched with the shape and the size that need to be punched.
The utility model provides a pair of support bending device, its theory of operation is: the working principle of the die is as follows: before punching, the strip is fed from right to left along the guide way of the guide plate component under the control of the automatic feeding device, a pilot pin fabrication hole is punched out by the pilot pin hole punching component at the (1) th station, and then punching work of working procedures such as punching a small round hole, punching a rectangular hole, a notch, bending 1, bending 2, bending 3, shaping, blanking and the like is carried out station by station under the action of guide plate material pressing force under the accurate positioning of a plurality of pilot pins. And the cut part slides out of the die along the inclined plane formed at the tail end of the feeding groove. After each stamping stroke, the guide plate unloads the strip materials under the action of the unloading rod assembly, and the three lifting blocks 16 support the strip materials to be conveyed to the next station by the automatic feeding device for continuous stamping.
As will be understood by those skilled in the art, the present invention may be embodied in many other specific forms without departing from the spirit or scope of the invention. While the embodiments of the present invention have been described, it is to be understood that the invention is not limited to those precise embodiments, and that various changes and modifications may be effected therein by one skilled in the art without departing from the scope or spirit of the invention as defined by the appended claims.

Claims (10)

1. A support bending forming device comprises an upper die, a lower die and a feeding mechanism arranged between the upper die and the lower die, wherein a punching guide positive pin process hole component, a punching waste cutting process mechanism, a bending process mechanism and a cutting process mechanism are sequentially arranged in die holes corresponding to the upper die and the lower die; the bending mechanism is characterized in that the bending working procedure mechanism comprises at least one group of bending assemblies, each bending assembly comprises a bending male die, a bending female die, an inclined wedge block and a bending lower die loose core, the upper ends of the bending male die and the inclined wedge block are arranged on the upper die side by side, and the bending female die and the bending lower die loose core are arranged on the lower die side by side; the upper die is vertically opposite to the lower die, and the lower end of the inclined wedge block is opposite to the upper end of the bent lower die loose core and matched with the upper end of the bent lower die loose core through an inclined plane;
the part to be processed is arranged on the lower die, and the bending position of the part is opposite to the bending female die; the upper end of the bent lower die loose core extends out of the upper surface of the lower die, and the side surface of the bent lower die loose core abuts against one side of a part to be processed; the lower die is pressed downwards to drive the bending male die and the inclined wedge block to move downwards, and the bending male die drives the part to be processed to extend into the bending female die to realize vertical upward bending force application; and the inclined wedge block presses down the bent lower die core-pulling device, so that the bent lower die core-pulling device moves towards one side of the part to be processed, and bending force application in the horizontal direction is realized.
2. The support bending forming device according to claim 1, wherein a first inclined surface is arranged at the lower end of the inclined wedge, a second inclined surface is arranged at the upper end of the bent lower die core, and the first inclined surface presses on the second inclined surface to apply force downwards to push the bent lower die core to move horizontally during bending.
3. The support bending forming device according to claim 1 or 2, wherein the bending assembly further comprises a reset screw, one end of the reset screw is connected with the bending lower die loose core, and the other end of the reset screw is installed on the lower die; and a spring is arranged between the other end of the reset nail and the lower die.
4. The support bending forming device according to claim 1, wherein the upper die comprises an upper die plate, an upper base plate, an upper fixing plate, a middle base plate and a guide plate, the upper die plate, the upper base plate and the upper fixing plate are connected together, the middle base plate is connected with the guide plate, and the whole body formed by the upper die plate, the upper base plate and the upper fixing plate and the whole body formed by the middle base plate and the guide plate can reciprocate up and down;
the lower die comprises a lower die plate, a lower backing plate and a lower fixing plate which are sequentially connected, the lower die plate is opposite to the guide plate, and the strip is pressed between the lower die plate and the guide plate;
the strip is positioned on the feeding mechanism, the feeding mechanism feeds the strip between the upper die and the lower die, and the strip sequentially passes through the punch and the die of the guide pin process hole component, the blanking and waste cutting process mechanism, the bending process mechanism and the cutting process mechanism under the action of the feeding mechanism to finish the processing of each process.
5. The apparatus according to claim 4, wherein the punch guide pin process hole assembly, the punch blanking and scrap cutting process assembly and the cutting process assembly each comprise a male die and a female die which are matched, the male die is arranged on the upper die, and the female die is arranged on the lower die.
6. The bending device for a bracket according to claim 5, wherein an upper segment is sleeved on the upper end of the male die and is arranged on the upper fixing plate through the upper segment; the lower end of the upper splicing block extends out of the lower end face of the upper fixing plate and is opposite to the upper end face of the middle backing plate; the lower end of the male die penetrates through the middle base plate and the guide plate and extends into the female die, the lower end of the male die penetrates through the guide plate through a lower splicing block, and the lower end of the male die can move along the inner portion of the lower splicing block.
7. The bending device for forming the bracket according to claim 5, wherein the female die is composed of female die segments and female die cushion blocks, a female die frame is arranged on the lower fixing plate, and the female die segments and the female die cushion blocks are embedded into the female die frame.
8. The support bending device according to claim 1, wherein the feeding mechanism comprises a feeding plate and a feeding device, the feeding plate is provided with a guide groove, the strip is placed in the guide groove, and the feeding device controls the strip to move along the guide groove.
9. The apparatus for bending and forming a support according to claim 8, wherein the lower mold is provided with a plurality of lifting blocks for lifting the strip, wherein a vent hole is provided at a middle position of at least one of the lifting blocks, one end of the vent hole is connected to a vent pipe to suck high-pressure air, and the other end of the vent hole is aligned with the guide groove.
10. The apparatus according to claim 4, wherein a guide pin is provided at a corresponding position of each process component on the upper mold for accurately positioning the strip.
CN202020055877.1U 2019-03-25 2020-01-10 Support bending device Expired - Fee Related CN213968590U (en)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
CN2019203847484 2019-03-25
CN201910229813.0A CN109759512A (en) 2019-03-25 2019-03-25 A kind of bracket bent molding machine
CN2019102298130 2019-03-25
CN201920384748 2019-03-25
CN201910366017.1A CN109926493A (en) 2019-04-30 2019-04-30 A kind of bracket bent molding machine
CN2019206222155 2019-04-30
CN201920622215 2019-04-30
CN2019103660171 2019-04-30

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111215523A (en) * 2019-03-25 2020-06-02 苏州工业职业技术学院 Support bending device

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Publication number Priority date Publication date Assignee Title
CN202174158U (en) * 2011-05-10 2012-03-28 滁州市新康达金属制品有限公司 Vertical and horizontal compound bending die
CN103894479A (en) * 2012-12-30 2014-07-02 上海奥林汽车配件有限公司 Die used for manufacturing collet chuck fixing windshield of car
CN103962452B (en) * 2014-04-15 2016-01-20 柳州职业技术学院 Mount supports seat multi-station progressive die
CN104289600B (en) * 2014-09-28 2017-01-18 苏州工业职业技术学院 Supporting part multi-station progressive die and manufacturing method thereof
CN106140966B (en) * 2016-09-02 2018-01-02 柳州职业技术学院 Condenser brackets precision progressive die
CN207431044U (en) * 2017-08-10 2018-06-01 厦门斯迪欧金属制品有限公司 A kind of bend forming die
CN111215523A (en) * 2019-03-25 2020-06-02 苏州工业职业技术学院 Support bending device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111215523A (en) * 2019-03-25 2020-06-02 苏州工业职业技术学院 Support bending device

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