CN114393105A - Raw material progressive blanking die for narrow flanging part - Google Patents

Raw material progressive blanking die for narrow flanging part Download PDF

Info

Publication number
CN114393105A
CN114393105A CN202111252203.6A CN202111252203A CN114393105A CN 114393105 A CN114393105 A CN 114393105A CN 202111252203 A CN202111252203 A CN 202111252203A CN 114393105 A CN114393105 A CN 114393105A
Authority
CN
China
Prior art keywords
die
forming die
station
workpiece
matched
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.)
Pending
Application number
CN202111252203.6A
Other languages
Chinese (zh)
Inventor
王学进
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.)
Changsha Jinhongshun Auto Parts Co ltd
Original Assignee
Changsha Jinhongshun Auto Parts Co ltd
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
Application filed by Changsha Jinhongshun Auto Parts Co ltd filed Critical Changsha Jinhongshun Auto Parts Co ltd
Priority to CN202111252203.6A priority Critical patent/CN114393105A/en
Publication of CN114393105A publication Critical patent/CN114393105A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/08—Dies with different parts for several steps in a process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/14—Dies

Abstract

The invention discloses a raw material progressive blanking die for narrow flanging parts with high subsequent processing yield, which comprises an upper die base and a lower die base, wherein an upper forming die is arranged on the upper die base, a lower forming die is arranged on the lower die base, eight processing stations are arranged between the upper forming die and the lower forming die, an upward convex pre-punching punch corresponding to a region of a workpiece side face which needs to be flanged downwards and the lower edge of which is a drawing part during flanging is arranged on the lower forming die at a first station, and a matched pre-punching die button is arranged on the upper forming die; and the upper forming die sequentially completes punching of each hole site and cutting and blanking of raw materials on subsequent stations.

Description

Raw material progressive blanking die for narrow flanging part
Technical Field
The invention relates to a raw material progressive blanking die for a narrow flanging part.
Background
The raw material plate of the flanging part is generally formed by die blanking, but when the raw material plate is used for flanging and stamping, once the width of the flanging part is narrower and the flanging line is a curve, the edge of a drawing section at the flanging part is easy to crack, manual polishing and repairing are needed if the edge is light, and the part is scrapped if the edge is heavy; and manual polishing wastes time and labor, and the finished product is high. At present, laser cutting blanking is often adopted to avoid the problem, but the laser cutting edge is unstable and expensive.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the raw material progressive blanking die for the narrow flanging part enables the follow-up processing yield to be high.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the raw material progressive blanking die for the narrow flanging part comprises an upper die base and a lower die base, wherein an upper forming die is arranged on the upper die base, a lower forming die is arranged on the lower die base, eight processing stations are arranged between the upper forming die and the lower forming die, and guide columns are respectively arranged on two sides of the lower forming die;
a lower forming die is provided with an upward convex pre-punching punch corresponding to a region of the side surface of the workpiece, which is required to be flanged downwards, and the lower edge of the lower forming die is a part drawn during flanging, and an upper forming die is provided with a matched pre-punching die button; the upper forming die is provided with a positioning punch at a first station, the lower forming die is provided with a matched workpiece positioning hole die button, the upper forming die is respectively provided with a guide pin corresponding to the workpiece positioning hole at each subsequent station, and the lower forming die is respectively provided with an avoidance hole corresponding to the guide pin at each subsequent station;
a punching cutter block corresponding to the inner side edge of the workpiece is arranged on the upper forming die at a second station, and a punching cutting edge corresponding to the inner side edge of the workpiece is arranged on the lower forming die at the second station;
a first middle cutting knife block and a second middle cutting knife block for punching the middle connecting area of the left workpiece and the right workpiece are arranged at a third station on the upper forming die, and a first middle lower knife block and a second middle lower knife block which are matched with each other are arranged at the third station on the upper forming die; the upper forming die is provided with side edge cutter blocks for punching the edges of the left and right workpieces at a third station, and the lower forming die is provided with a side edge lower cutter block matched with the side edge cutter blocks;
an outer side chamfering upper cutter block for pressing and trimming the edges of the left workpiece and the right workpiece is arranged at a sixth station on the upper forming die, and a matched outer side chamfering lower cutter block is arranged on the lower forming die;
a third middle cutting knife block for cutting off a connecting area between the workpieces of the adjacent stations is arranged at the eighth station on the upper forming die, and a third middle lower knife block matched with the eighth station is arranged at the eighth station on the lower forming die; a fourth middle cutting knife block for cutting off the middle connecting area of the left workpiece and the right workpiece is further arranged at the eighth station on the upper forming die, and a fourth middle lower knife block matched with the upper forming die is arranged at the eighth station on the lower forming die.
As a preferable scheme, the left and right sides of the fourth middle cutting knife block are provided with asymmetrically arranged left and right part mark groove portions, and the fourth middle lower knife block is provided with a matched convex portion.
As a preferable scheme, a side guide pin punch is arranged on the upper forming die, and a matched side guide pin die button is arranged on the lower forming die.
As a preferable scheme, a plurality of pairs of guide blocks with inverted L-shaped cross sections are arranged on the lower die base corresponding to two sides of the material plate, and the upper die base is provided with a containing groove for containing the end part of the guide block.
As a preferable scheme, two material-supporting feeding strips arranged along the feeding direction are arranged on the lower die base in parallel at the feeding side of the lower forming die, and the end parts of the feeding strips are provided with inclined feeding inclined planes.
The invention has the beneficial effects that: the lower forming die is provided with a pre-punching punch head which corresponds to an upward bulge of a region of the side surface of the workpiece which needs to be flanged downwards and the lower edge of which is a drawing part during flanging at a first station, and the upper forming die is provided with a matched pre-punching die button; the working procedure firstly punches a notch from the lower side in advance, so that the edge of the plate which is easy to crack at the flanging position is a bright cutting surface rather than a tearing surface under the action of the cutting edge of the pre-punching die button, thereby ensuring that the cracking phenomenon can not occur in the subsequent flanging forming process and improving the yield.
Because the left and right sides of the fourth middle cutting knife block are provided with the left and right part mark groove parts which are asymmetrically arranged, and the fourth middle lower knife block is provided with the matched bulge part, the left and right parts can be quickly and accurately distinguished through vision, and the situation that the left and right parts are mixed up in the subsequent processing to cause the scrapping of workpieces is prevented.
Because the upper forming die is provided with the side guide pin punch and the lower forming die is provided with the matched side guide pin die button, the blanking processing precision is further ensured.
Because the lower die base is provided with a plurality of guide blocks with inverted L-shaped cross sections corresponding to the two sides of the flitch, the upper die base is provided with a containing groove for containing the end part of the guide block, and the flitch is ensured not to deviate in the feeding process.
Because the lower die base is provided with two material supporting guide strips arranged in parallel along the feeding direction at the feeding side of the lower forming die, and the end parts of the guide strips are provided with inclined feeding inclined planes, the feeding is smoother.
Drawings
FIG. 1 is a schematic view of the lower die structure of the present invention.
Fig. 2 is a schematic view of the upper die structure of the present invention.
In fig. 1 to 2: 1, an upper die holder, 2, a lower die holder, 3, an upper forming die, 4, a lower forming die and 5, wherein the upper die holder is fixed on the upper die holder;
6, pre-punching a punch, 7, positioning the punch, 8, workpiece positioning hole die buttons, 9, a guide pin, 10, a punching cutter block and 11, punching a cutting edge;
12 a first middle cutter block, 13 a second middle cutter block, 14 a first middle lower cutter block, 15 a second middle lower cutter block, 16 a side cutter block, 17 a side cutter block; an upper cutter block is chamfered at the outer side of 18, and a lower cutter block is chamfered at the outer side of 19;
20 a third middle cutter block, 21 a third middle lower cutter block; 22 a fourth middle cutter block, 23 a fourth middle lower cutter block; side 24 guide pin punch, side 25 guide pin die button, side 26 guide block, side 27 guide strip.
Detailed Description
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1-2, the raw material progressive blanking die for narrow flanging parts comprises an upper die holder 1 and a lower die holder 2, wherein an upper forming die 3 is arranged on the upper die holder 1, a lower forming die 4 is arranged on the lower die holder 2, eight processing stations are arranged between the upper forming die 3 and the lower forming die 4, and guide posts 5 are respectively arranged on two sides of the lower forming die 4;
a pre-punching punch 6 which is protruded upwards and corresponds to a region of the side surface of the workpiece, which is required to be flanged downwards, and the lower edge of which is a drawing part during flanging is arranged on the lower forming die 4 at a first station, and a matched pre-punching die button is arranged on the upper forming die 3; a positioning punch 7 is arranged at a first station on the upper forming die 3, a matched workpiece positioning hole die button 8 is arranged on the lower forming die 4, guide pins 9 corresponding to the workpiece positioning holes are respectively arranged at each subsequent station on the upper forming die 3, and avoidance holes corresponding to the guide pins 9 are respectively arranged at each subsequent station on the lower forming die 4;
a punching cutter block 10 corresponding to the inner side edge of the workpiece is arranged on the upper forming die 3 at a second station, and a punching cutting edge 11 corresponding to the inner side edge of the workpiece is arranged on the lower forming die 4 at the second station;
a first middle cutting knife block 12 and a second middle cutting knife block 13 for punching the middle connecting area of the left workpiece and the right workpiece are arranged at a third station on the upper forming die 3, and a first middle lower knife block 14 and a second middle lower knife block 15 which are matched with each other are arranged at the third station on the upper forming die 3; the upper forming die 3 is provided with side edge cutter blocks 16 for punching the edges of the left and right workpieces at a third station, and the lower forming die 4 is provided with side edge lower cutter blocks 17 matched with the side edge cutter blocks;
an outer side chamfering upper cutter block 18 for pressing and trimming the edges of the left and right workpieces is arranged at a sixth station on the upper forming die 3, and a matched outer side chamfering lower cutter block 19 is arranged on the lower forming die 4;
a third middle cutting knife block 20 for cutting off the connecting area between the workpieces of the adjacent stations is arranged at the eighth station on the upper forming die 3, and a third middle lower knife block 21 matched with the eighth station is arranged at the eighth station on the lower forming die 4; a fourth middle cutting knife block 22 for cutting off the middle connecting area of the left workpiece and the right workpiece is further arranged at the eighth station on the upper forming die 3, and a fourth middle lower knife block 23 matched with the upper forming die 4 is arranged at the eighth station.
The left and right sides of the fourth middle cutting knife block 22 are provided with asymmetrically arranged left and right part mark groove portions, and the fourth middle lower knife block 23 is provided with a matched convex portion.
And a side guide pin punch 24 is arranged on the upper forming die 3, and a matched side guide pin die button 25 is arranged on the lower forming die 4. A plurality of guide blocks 26 with inverted-L-shaped cross sections are arranged on the lower die holder 2 corresponding to the two sides of the material plate, and an accommodating groove for accommodating the end part of each guide block 26 is arranged on the upper die holder 1.
Two material guiding strips 27 which are arranged along the feeding direction and are used for supporting materials are arranged on the lower die base 2 in parallel at the feeding side of the lower forming die 4, and inclined feeding inclined planes are arranged at the end parts of the material guiding strips 27.
The above-mentioned embodiments are merely illustrative of the principles and effects of the present invention, and some embodiments may be used, not restrictive; it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications belong to the protection scope of the present invention.

Claims (5)

1. The raw material progressive blanking die for the narrow flanging part comprises an upper die base and a lower die base, wherein an upper forming die is arranged on the upper die base, a lower forming die is arranged on the lower die base, eight processing stations are arranged between the upper forming die and the lower forming die, and guide columns are respectively arranged on two sides of the lower forming die;
the method is characterized in that: the lower forming die is provided with an upward convex pre-punching punch corresponding to a region of the side surface of the workpiece, which is required to be flanged downwards, and the lower edge of the lower forming die is a part drawn during flanging, and the upper forming die is provided with a matched pre-punching die button; the upper forming die is provided with a positioning punch at a first station, the lower forming die is provided with a matched workpiece positioning hole die button, the upper forming die is respectively provided with a guide pin corresponding to the workpiece positioning hole at each subsequent station, and the lower forming die is respectively provided with an avoidance hole corresponding to the guide pin at each subsequent station; a punching cutter block corresponding to the inner side edge of the workpiece is arranged on the upper forming die at a second station, and a punching cutting edge corresponding to the inner side edge of the workpiece is arranged on the lower forming die at the second station;
a first middle cutting knife block and a second middle cutting knife block for punching the middle connecting area of the left workpiece and the right workpiece are arranged at a third station on the upper forming die, and a first middle lower knife block and a second middle lower knife block which are matched with each other are arranged at the third station on the upper forming die; the upper forming die is provided with side edge cutter blocks for punching the edges of the left and right workpieces at a third station, and the lower forming die is provided with a side edge lower cutter block matched with the side edge cutter blocks;
an outer side chamfering upper cutter block for pressing and trimming the edges of the left workpiece and the right workpiece is arranged at a sixth station on the upper forming die, and a matched outer side chamfering lower cutter block is arranged on the lower forming die;
a third middle cutting knife block for cutting off a connecting area between the workpieces of the adjacent stations is arranged at the eighth station on the upper forming die, and a third middle lower knife block matched with the eighth station is arranged at the eighth station on the lower forming die; a fourth middle cutting knife block for cutting off the middle connecting area of the left workpiece and the right workpiece is further arranged at the eighth station on the upper forming die, and a fourth middle lower knife block matched with the upper forming die is arranged at the eighth station on the lower forming die.
2. The progressive blanking die for the narrow flange part as claimed in claim 1, wherein: the left and right sides of the fourth middle cutting knife block are provided with asymmetrically arranged left and right part mark groove portions, and the fourth middle lower knife block is provided with a matched convex portion.
3. The progressive blanking die for the narrow flange part as claimed in claim 2, wherein: and the upper forming die is provided with a side guide pin punch, and the lower forming die is provided with a matched side guide pin die button.
4. The progressive blanking die for the narrow flange part as claimed in claim 3, wherein: the die comprises a lower die base, a flitch and an upper die base, wherein the lower die base is provided with a plurality of guide blocks with inverted L-shaped cross sections on two sides of the flitch, and the upper die base is provided with a containing groove for containing the end parts of the guide blocks.
5. The progressive blanking die for the narrow flange part as claimed in claim 4, wherein: two material supporting and guiding strips arranged along the feeding direction are arranged on the lower die base in parallel at the feeding side of the lower forming die, and inclined feeding inclined planes are arranged at the end parts of the guiding strips.
CN202111252203.6A 2021-10-27 2021-10-27 Raw material progressive blanking die for narrow flanging part Pending CN114393105A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111252203.6A CN114393105A (en) 2021-10-27 2021-10-27 Raw material progressive blanking die for narrow flanging part

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111252203.6A CN114393105A (en) 2021-10-27 2021-10-27 Raw material progressive blanking die for narrow flanging part

Publications (1)

Publication Number Publication Date
CN114393105A true CN114393105A (en) 2022-04-26

Family

ID=81225543

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111252203.6A Pending CN114393105A (en) 2021-10-27 2021-10-27 Raw material progressive blanking die for narrow flanging part

Country Status (1)

Country Link
CN (1) CN114393105A (en)

Similar Documents

Publication Publication Date Title
CN201728283U (en) Die for punching and trimming flexible-connection copper strip
CN209773246U (en) Trimming and flanging die
CN115475879A (en) Continuous stamping die of one shot forming contact pin and material area
CN214161058U (en) Punching blanking die for bilaterally-symmetrical thin-walled parts
CN211333569U (en) Jig with movable positioning pins
CN114393105A (en) Raw material progressive blanking die for narrow flanging part
CN210999091U (en) Trimming and finishing jig
JPS6032435B2 (en) Motor blank manufacturing method and its cutting tool
CN111451720B (en) Forming method of electric contact sliding sheet
CN101875082A (en) Continuous die mould of part
CN211965553U (en) Precise punching die
CN211360323U (en) Trimming and punching forming die
CN112676433A (en) Non-overlap edge round corner cutting die
CN112743632A (en) Jig with movable positioning pins
JP2000317544A (en) Method and device for press working
KR101285035B1 (en) Method and tool for manufacturing of build up products
CN219425429U (en) Multi-station sheet stamping forming device
CN216027409U (en) Stamping and trimming forming die for left and right pieces of automobile A column
JP3561164B2 (en) Punching apparatus and punching method
CN211191639U (en) Rolling structure product progressive die
CN217121482U (en) Terminal waste material cuts off die
CN210877059U (en) Link plate assembling die
CN114589250B (en) Stamping die process and die for flanging connecting piece
CN210877058U (en) Movable seat blanking stamping progressive die
CN217550910U (en) Extrusion cutting flanging burr pressing progressive die structure

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination