CN115041579A - Precision terminal PIN wide and narrow blanking die and blanking method - Google Patents
Precision terminal PIN wide and narrow blanking die and blanking method Download PDFInfo
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- CN115041579A CN115041579A CN202210661037.3A CN202210661037A CN115041579A CN 115041579 A CN115041579 A CN 115041579A CN 202210661037 A CN202210661037 A CN 202210661037A CN 115041579 A CN115041579 A CN 115041579A
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- Prior art keywords
- blanking
- lower die
- stripping
- groove
- die
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- 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
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- 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
- B21D37/10—Die sets; Pillar guides
-
- 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
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Punching Or Piercing (AREA)
Abstract
The invention discloses a precision terminal PIN width extremely narrow blanking die and a blanking method, comprising a lower die and an upper die; the lower die comprises a lower die base and a lower die cutter arranged on the lower die base, wherein the lower die cutter is provided with a blanking groove penetrating through the upper end surface and the lower end surface of the lower die cutter, and a knife edge convex rib is arranged on the side of the opening side of the upper end of the blanking groove in a convex manner; the stripping feeding block is positioned right above the lower die cutter and is matched with the lower die cutter; the punch is arranged on the upper die base and moves up and down along with the upper die base, and the punch is matched with the punching groove and the blanking groove. The other side epirelief of upper end opening side of silo is equipped with a edge of a knife protruding muscle about through the lower mould cutter for when carrying out the terminal blanking, the edge of a knife protruding muscle can cooperate and take off the material income piece and compress tightly the material from top to bottom, in order to prevent that the material from receiving blanking stress deformation, simultaneously through the horizontal yawing force of forced compression material formation, avoid inside the silo under the blanking in-process material is drawn into, improved the plane degree profile tolerance and the blanking precision of product.
Description
Technical Field
The invention relates to the technical field of terminal processing, in particular to a blanking die and a blanking method for a precise terminal PIN with extremely narrow width.
Background
Connectors are widely used in various fields, and terminals are main components for transmitting signals in the connectors, and the terminals are generally formed by processing a metal strip through a stamping die, and the processing includes blanking, bending and the like. The common structure of the blanking die is as follows: the terminal punching die comprises a punch and a tool apron which are matched, and the shape of the upper side of the tool apron is the same as the shape required to be formed after the terminal is punched. The punch is pressed down, so that redundant waste materials on the material belt are cut off, blanking is completed, and meanwhile, terminals with various widths are required to be blanked according to functional requirements.
When a terminal with an extremely narrow PIN width is blanked by the conventional terminal blanking die assembly, only a pipe position and a material pressing convex rib are added on a stripping feeding block to reinforce a pressing material, so that the end surface quality of a product obtained by separating the material is easy to have the problems of corner collapse, poor brightness, fracture, burr areas and the like, the sizes are also easy to be inconsistent from top to bottom, the blanking precision and the profile are not enough, the overall result is not ideal enough, in addition, the material waste is easy to cause, and the processing cost is increased; therefore, there is a need for further improvements to existing PIN width extremely narrow terminal blanking die assembly configurations.
Disclosure of Invention
In view of the above, the present invention provides a blanking die and a blanking method for a PIN with a very narrow width for a precision terminal, which overcome the disadvantages of the prior art, and a main object of the present invention is to provide a blanking die and a blanking method for a PIN with a very narrow width for a precision terminal, wherein a knife edge convex rib is convexly arranged on the side of the upper opening side of a feeding groove and a lower groove of a lower die tool, so that a stripping feeding block is matched to press a material to be dead during blanking, the material forms a lateral force, and the phenomena of corner collapse, end face, burr and trapezoid of the material during blanking are avoided.
In order to achieve the purpose, the invention adopts the following technical scheme:
a precision terminal PIN blanking die with extremely narrow width comprises a lower die and an upper die;
the lower die comprises a lower die base and a lower die cutter arranged on the lower die base, wherein the lower die cutter is provided with a blanking groove penetrating through the upper end surface and the lower end surface of the lower die cutter, and a knife edge convex rib is arranged on the side of the opening side of the upper end of the blanking groove in a convex manner;
the upper die is movably arranged right above the lower die up and down and comprises a stripper plate, an upper die base, a stripper insert and a punch; the stripper plate is positioned right above the lower die base and can be movably arranged up and down relative to the lower die base; the upper die seat is positioned right above the stripper plate and can be movably arranged up and down relative to the stripper plate; the stripping feeding block is arranged on the stripping plate and moves up and down along with the stripping plate, the stripping feeding block is positioned right above the lower die cutter and is matched with the lower die cutter, and the stripping feeding block is provided with a punching groove matched with the blanking groove; the punch is arranged on the upper die base and moves up and down along with the upper die base, and the punch is matched with the punching groove and the blanking groove.
As a preferable scheme, the knife edge convex rib is integrally protruded upwards by the lower die cutter, and the knife edge convex rib is arranged around the left side edge and the front side edge of the discharging groove.
As a preferred scheme, the lower end face of the stripping and feeding block is integrally provided with a limiting part in a downward protruding manner, the limiting part is positioned on the right side of the lower end opening of the punching groove, and the transverse distance between the limiting part and the punching groove is the same as the PIN width of the terminal.
As a preferred scheme, two first limiting holes which are arranged left and right are formed in the lower die cutter, two second limiting holes matched with the first limiting holes penetrate through the stripping insert, and the two fixing pins sequentially penetrate through the corresponding second limiting holes and the first limiting holes from top to bottom to limit.
As a preferable scheme, a first fixing part fixed with the stripper plate is integrally and outwards convexly arranged on one side of the upper end of the stripper insert.
As a preferable scheme, the punching groove comprises a first punching groove and a second punching groove which are communicated up and down, the first punching groove integrally extends downwards from the upper end surface of the stripping insert, and the second punching groove integrally extends downwards from the bottom surface of the first punching groove and penetrates through the lower end surface of the stripping insert; correspondingly, the punch comprises a main body part and a punch head integrally formed at the lower end of the main body part.
Preferably, a second fixing portion fixed to the upper mold is integrally and outwardly protruded from an upper end side of the main body portion.
A precision terminal PIN width and width blanking method adopts the precision terminal PIN width and width blanking die set according to any one of claims 1-7, and comprises the following steps:
(1) lifting the upper die base and the stripper plate upwards, and then placing the material belt on the upper surface of the lower die cutter;
(2) pressing down the stripper plate to make the stripper inlet block contact with the material belt;
(3) pressing the upper die base downwards to enable the stripping feeding block to compress the material, and blanking the material belt through a punch;
(4) and (3) lifting the upper die holder and the stripper plate, translating the material belt to the right to a proper position, and repeating the step (2) and the step (3).
Compared with the prior art, the invention has obvious advantages and beneficial effects, and specifically, the technical scheme includes that:
the side of the upper end opening side of the upper material groove of the lower die cutter is convexly provided with a knife edge convex rib, so that when a terminal is blanked, the knife edge convex rib can be matched with a stripping material inlet block to compress a material up and down, the material is prevented from being subjected to blanking stress deformation, meanwhile, a transverse lateral force is formed by a forced pressing material, the situation that the material is pulled into a blanking groove in the blanking process is avoided, adverse phenomena such as corner collapse, end surfaces, burrs and trapezoids cannot occur after the material is blanked, the flatness profile and blanking precision of a product are improved, the waste of the material is reduced, and the processing cost is reduced.
To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Drawings
FIG. 1 is a schematic perspective view of a preferred embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating a usage state of the preferred embodiment of the present invention;
FIG. 3 is an exploded view of the preferred embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of a preferred embodiment of the present invention;
fig. 5 is an enlarged schematic view at a in fig. 4.
The attached drawings indicate the following:
10. lower die 101 and blanking groove
102. First spacing hole 11, die holder
12. Lower die cutter 13 and knife edge convex rib
20. Upper die 201, notching
202. Second limit hole 203 and first punching groove
204. Second notching 21, stripper plate
22. Upper die holder 23, stripper insert
231. Limiting part 232 and first fixing part
24. Punch 241, main body part
242. A punch 243 and a second fixing portion.
Detailed Description
Referring to fig. 1 to 5, a specific structure of a preferred embodiment of the present invention is shown, which includes a lower mold 10 and an upper mold 20.
The lower die 10 comprises a lower die base 11 and a lower die cutter 12 arranged on the lower die base 11, wherein the lower die cutter 12 is provided with a blanking groove 101 penetrating through the upper end surface and the lower end surface of the lower die cutter 12, and a knife edge convex rib 13 is convexly arranged beside the opening side of the upper end of the blanking groove 101; in this embodiment, the knife edge rib 13 protrudes upward integrally from the lower die cutter 12, and the knife edge rib 13 is disposed around the left side and the front side of the discharging chute 101; the lower die tool 12 is provided with two first limiting holes 102 arranged left and right.
The upper die 20 is movably arranged right above the lower die 10 up and down, and the upper die 20 comprises a stripper plate 21, an upper die seat 22, a stripper insert 23 and a punch 24; the stripper plate 21 is positioned right above the lower die base 11 and is movably arranged up and down relative to the lower die base 10; the upper die base 22 is positioned right above the stripper plate 21 and is movably arranged up and down relative to the stripper plate 22; the stripping feeding block 23 is arranged on the stripping plate 21 and moves up and down along with the stripping plate 21, the stripping feeding block 23 is positioned right above the lower die cutter 12 and is matched with the lower die cutter 12, and the stripping feeding block 23 is provided with a punching groove 201 matched with the blanking groove 101; the punch 24 is arranged on the upper die holder 22 and moves up and down along with the upper die holder 22, the punch 24 is matched with the blanking groove 101 of the punching groove 201, and the punch 24 punches the terminal by moving down along with the upper die holder 22 and sequentially penetrating through the punching groove 201 and the blanking groove 101.
In this embodiment, the lower end surface of the stripping and feeding block 23 is integrally provided with a limiting portion 231 in a downward protruding manner, the limiting portion 231 is located on the right side of the opening at the lower end of the punch groove 201, the transverse distance between the limiting portion 231 and the punch groove 201 is the same as the width of the PIN of the terminal, and the limiting portion 231 is used for limiting the distance that the material strip moves rightwards after each punching, so that the accuracy of the PIN width of the terminal is ensured; two second limiting holes 202 matched with the first limiting holes 102 penetrate through the stripping insert 23, and two fixing pins (not shown in the figure) sequentially penetrate through the corresponding second limiting holes 202 and the corresponding first limiting holes 102 from top to bottom for limiting so as to prevent the stripping insert 23 from being dislocated with the lower die cutter 12 and ensure the blanking precision; a first fixing part 232 fixed with the stripper plate 21 is integrally and outwards arranged on one side of the upper end of the stripper inlet block 23; the punching groove 201 comprises a first punching groove 203 and a second punching groove 204 which are communicated up and down, the first punching groove 203 integrally extends downwards from the upper end surface of the stripping insert 23, and the second punching groove 204 integrally extends downwards from the bottom surface of the first punching groove 203 and penetrates through the lower end surface of the stripping insert 23; correspondingly, the punch 24 includes a main body portion 241 and a punch 242 integrally formed at the lower end of the main body portion 241; when the punch 24 punches, only the punch 242 punches downwards, so that the punch 24 is prevented from punching downwards for too much distance, and the punch 24 is prevented from bending and deforming; a second fixing portion 243 integrally protruding from the upper end of the main body portion 241 is fixed to the upper mold 22.
Detailed description the working principle of the present embodiment is as follows:
(1) lifting the upper die base 22 and the stripper plate 21 upwards, and then placing the material belt on the upper surface of the lower die cutter 12;
(2) pressing down the stripper plate 21 to make the stripper inlet block 23 contact with the material belt half;
(3) pressing down the upper die seat 22 to enable the stripping inlet block 23 to compress the material, and blanking the material belt through a punch 24;
(4) and (3) lifting the upper die holder 22 and the stripper plate 21, translating the material belt to the right to a proper position, and repeating the step (2) and the step (3).
The design of the invention is characterized in that: the other side epirelief of upper end opening side through silo about the lower mould cutter is equipped with a edge of a knife protruding muscle, make when carrying out the terminal blanking, the edge of a knife protruding muscle can cooperate and take off the material income piece and compress tightly the material from top to bottom, in order to prevent that the material from receiving blanking stress deformation, form horizontal yawing force through the forced compression material simultaneously, avoid being drawn into the silo inside at blanking in-process material, make can not appear collapsing after the material blanking, the terminal surface, the burr, bad phenomena such as trapezoidal, the plane degree profile and the blanking precision of product have been improved, the waste of material has been reduced, the processing cost is reduced.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.
Claims (6)
1. The utility model provides a wide extremely narrow unloading mould of precision terminal PIN which characterized in that: comprises a lower die and an upper die;
the lower die comprises a lower die base and a lower die cutter arranged on the lower die base, wherein the lower die cutter is provided with a blanking groove penetrating through the upper end surface and the lower end surface of the lower die cutter, and a knife edge convex rib is arranged on the side of the opening side of the upper end of the blanking groove in a convex manner; the knife edge convex rib is integrally protruded upwards from the lower die cutter, and the knife edge convex rib is arranged around the left side and the front side of the blanking groove;
the upper die is movably arranged right above the lower die up and down and comprises a stripper plate, an upper die base, a stripper insert and a punch; the stripper plate is positioned right above the lower die base and can be movably arranged up and down relative to the lower die base; the upper die seat is positioned right above the stripper plate and can be movably arranged up and down relative to the stripper plate; the stripping insert is arranged on the stripping plate and moves up and down along with the stripping plate, the stripping insert is positioned right above the lower die cutter and is matched with the lower die cutter, the stripping insert is provided with a punching groove matched with the blanking groove, the lower end face of the stripping insert is integrally provided with a limiting part in a downward convex mode, the limiting part is positioned on the right side of an opening at the lower end of the punching groove, and the transverse distance between the limiting part and the punching groove is the same as the width of a terminal PIN; the punch is arranged on the upper die base and moves up and down along with the upper die base, and the punch is matched with the punching groove and the blanking groove.
2. The blanking die of claim 1 for precision terminals with PIN width and width is characterized in that: two first limiting holes distributed left and right are formed in the lower die cutter, two second limiting holes matched with the first limiting holes penetrate through the stripping insert, and the two fixing pins sequentially penetrate through the corresponding second limiting holes and the first limiting holes from top to bottom to limit.
3. The blanking die of claim 1 for precision terminals with PIN width and width is characterized in that: one side of the upper end of the stripping feeding block is integrally and outwards convexly provided with a first fixing part fixed with the stripping plate.
4. The blanking die of claim 1 for precision terminals with PIN width and width is characterized in that: the punching grooves comprise a first punching groove and a second punching groove which are communicated up and down, the first punching groove integrally extends downwards from the upper end surface of the stripping insert, and the second punching groove integrally extends downwards from the bottom surface of the first punching groove and penetrates through the lower end surface of the stripping insert; correspondingly, the punch comprises a main body part and a punch head integrally formed at the lower end of the main body part.
5. The blanking die of claim 4 for precision terminals, namely PIN width and extreme narrow, is characterized in that: and a second fixing part fixed with the upper die is integrally and outwards convexly arranged on one side of the upper end of the main body part.
6. A precise terminal PIN width and width blanking method is characterized in that: the precise terminal PIN width extremely narrow blanking die set according to any one of claims 1-7 is adopted, and the method comprises the following steps:
(1) lifting the upper die base and the stripper plate upwards, and then placing the material belt on the upper surface of the lower die cutter;
(2) pressing down the stripper plate to make the stripper inlet block contact with the material belt;
(3) pressing the upper die base downwards to enable the stripping feeding block to compress the material, and blanking the material belt through a punch;
(4) and (3) lifting the upper die holder and the stripper plate, translating the material belt to the right to a proper position, and repeating the step (2) and the step (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210661037.3A CN115041579A (en) | 2022-06-13 | 2022-06-13 | Precision terminal PIN wide and narrow blanking die and blanking method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210661037.3A CN115041579A (en) | 2022-06-13 | 2022-06-13 | Precision terminal PIN wide and narrow blanking die and blanking method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115041579A true CN115041579A (en) | 2022-09-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210661037.3A Pending CN115041579A (en) | 2022-06-13 | 2022-06-13 | Precision terminal PIN wide and narrow blanking die and blanking method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115041579A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3990142A (en) * | 1973-10-02 | 1976-11-09 | Jerobee Industries, Inc. | Circuit board, method of making the circuit board and improved die for making said board |
| CN1533855A (en) * | 2003-04-01 | 2004-10-06 | 丰田自动车株式会社 | Die and its mfg. method |
| JP2005065457A (en) * | 2003-08-19 | 2005-03-10 | Kuroda Precision Ind Ltd | Contour punching method of motor core and metal mold device for manufacturing the motor core |
| CN201432039Y (en) * | 2009-04-17 | 2010-03-31 | 奕东电子(常熟)有限公司 | Novel structure for product discharge |
| CN201592216U (en) * | 2009-11-28 | 2010-09-29 | 富港电子（东莞）有限公司 | Spring terminal die |
| CN102327956A (en) * | 2011-06-23 | 2012-01-25 | 苏州旭创精密模具有限公司 | Stamping method for producing precise high definition multimedia interface terminals |
| CN203725583U (en) * | 2013-12-31 | 2014-07-23 | 祥鑫科技股份有限公司 | Waste-bouncing-proof die punch |
| CN204108093U (en) * | 2014-09-17 | 2015-01-21 | 上海英祺精密零件制造有限公司 | A kind of small-bore panel beating hole punched device |
| CN206366591U (en) * | 2017-01-06 | 2017-08-01 | 东莞坤胜五金制品有限公司 | It is a kind of to improve the front and rear design structure by PIN of plane blanking terminal bending |
| CN213793961U (en) * | 2020-09-23 | 2021-07-27 | 昆山瑞奕奇电子科技有限公司 | Symmetrical shearing mechanism for narrow pin |
-
2022
- 2022-06-13 CN CN202210661037.3A patent/CN115041579A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3990142A (en) * | 1973-10-02 | 1976-11-09 | Jerobee Industries, Inc. | Circuit board, method of making the circuit board and improved die for making said board |
| CN1533855A (en) * | 2003-04-01 | 2004-10-06 | 丰田自动车株式会社 | Die and its mfg. method |
| JP2005065457A (en) * | 2003-08-19 | 2005-03-10 | Kuroda Precision Ind Ltd | Contour punching method of motor core and metal mold device for manufacturing the motor core |
| CN201432039Y (en) * | 2009-04-17 | 2010-03-31 | 奕东电子(常熟)有限公司 | Novel structure for product discharge |
| CN201592216U (en) * | 2009-11-28 | 2010-09-29 | 富港电子（东莞）有限公司 | Spring terminal die |
| CN102327956A (en) * | 2011-06-23 | 2012-01-25 | 苏州旭创精密模具有限公司 | Stamping method for producing precise high definition multimedia interface terminals |
| CN203725583U (en) * | 2013-12-31 | 2014-07-23 | 祥鑫科技股份有限公司 | Waste-bouncing-proof die punch |
| CN204108093U (en) * | 2014-09-17 | 2015-01-21 | 上海英祺精密零件制造有限公司 | A kind of small-bore panel beating hole punched device |
| CN206366591U (en) * | 2017-01-06 | 2017-08-01 | 东莞坤胜五金制品有限公司 | It is a kind of to improve the front and rear design structure by PIN of plane blanking terminal bending |
| CN213793961U (en) * | 2020-09-23 | 2021-07-27 | 昆山瑞奕奇电子科技有限公司 | Symmetrical shearing mechanism for narrow pin |
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