CN113828683A - Forming device and forming method for part with hole - Google Patents
Forming device and forming method for part with hole Download PDFInfo
- Publication number
- CN113828683A CN113828683A CN202110986757.2A CN202110986757A CN113828683A CN 113828683 A CN113828683 A CN 113828683A CN 202110986757 A CN202110986757 A CN 202110986757A CN 113828683 A CN113828683 A CN 113828683A
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- Prior art keywords
- punching
- die
- enlarged area
- positioning
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Links
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000004080 punching Methods 0.000 claims abstract description 76
- 239000011265 semifinished product Substances 0.000 claims abstract description 22
- 238000005520 cutting process Methods 0.000 claims abstract description 19
- 238000000465 moulding Methods 0.000 claims abstract description 12
- 238000009966 trimming Methods 0.000 claims abstract description 10
- 238000003860 storage Methods 0.000 claims description 11
- 230000000903 blocking effect Effects 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 7
- 238000001125 extrusion Methods 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims 1
- 239000000047 product Substances 0.000 abstract description 9
- 238000007493 shaping process Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/34—Perforating tools; Die holders
-
- 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
-
- 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
- B21D28/24—Perforating, i.e. punching holes
-
- 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
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/001—Shaping combined with punching, e.g. stamping and perforating
-
- 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
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
-
- 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
- B21D37/12—Particular guiding equipment, e.g. pliers; Special arrangements for interconnection or cooperation of dies
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Punching Or Piercing (AREA)
Abstract
The invention relates to a forming device of a part with a hole, which comprises a stamping die and a punching die, wherein the transverse size of a cavity of the stamping die is larger than that of the part, and the punching die comprises an edge cutting device which is used for cutting off an enlarged area of a semi-finished product so as to form the part. The stamping die cavity does not need to be provided with too many complex structures, the trimming device which is consistent with the part in shape is used for shaping and trimming to finish the part molding, so that the precision requirement and the cost of the die are reduced under the condition that the molding precision of a molded product is not reduced, and the invention also relates to a molding method of the part with the hole.
Description
Technical Field
The invention relates to a forming device of a porous part, and also relates to a forming method comprising the forming device.
Background
The stamping process is a forming process method which uses a press machine and a corresponding die to apply external force to plates, bars and the like to cause the plates, bars and the like to be plastically deformed or separated so as to obtain workpieces with required shapes and sizes.
Unfortunately, the formation of flash is often accompanied during the stamping process, which is a relatively common undesirable phenomenon. The flash is also called as burr, generally appears at a mold clamping position, and is generally caused by reasons such as insufficient mold clamping force or poor flatness at the mold clamping position of the male and female molds. At present, flash generated during stamping of stamping parts can be eliminated through secondary working procedures, and the cost of a die and the time cost are increased.
The phenomenon that the material is not fully filled in the die cavity is another common bad phenomenon, which is often caused by insufficient tonnage of a stamping device, poor material flowability and more complex product structural characteristics. Especially for some products with corners and the like, it is difficult to fill the material in place at the corners.
Disclosure of Invention
The invention aims to provide a forming device capable of eliminating flash and poor forming, and a forming method of the forming device.
To this end, the forming device for the part with the hole comprises a stamping die and a punching die, wherein the transverse size of a cavity of the stamping die is larger than that of the part, and the punching die comprises an edge cutting device which is used for cutting off an enlarged area of a semi-finished product so as to form the part.
Furthermore, the punching die comprises a punching male die, the punching male die comprises a main punch, the main punch comprises a positioning hole punching block, the positioning hole punching block is used for punching positioning holes in the enlarged area of the semi-finished product, and positioning columns matched with the positioning holes are arranged on the punching holes of the punching die.
Furthermore, the positioning column is provided with a fixing part fixed with the positioning hole, and the punching male die is provided with a separating device separated from the cut semi-finished product enlarged area.
Furthermore, the fixing part is in interference fit with the positioning hole, and a blocking plate in an enlarged area is arranged on the punching male die.
The fixing part can also comprise fixing blocks which are arranged in a mirror symmetry mode, the fixing blocks are movably connected in a fixing window of the fixing part, and a pressure rod used for enabling the fixing blocks to be in interference fit with the positioning holes or enabling the fixing blocks to be separated from the positioning holes in a radial extrusion mode is arranged in the positioning column.
Furthermore, a groove is formed in the upper end face of the fixing portion, and a spring is pressed between the bottom of the groove and the fixing block.
The invention also comprises a forming method of the porous part, which comprises the following steps:
(1) placing a blank with increased size into a stamping die;
(2) punching to form a semi-finished product with a transverse dimension larger than that of the formed part, and punching a positioning hole in the enlarged area;
(3) placing the semi-finished product into a punching die, pressing down a punching male die, pressing down a punching punch and an edge cutting device after a positioning column enters a positioning hole, and cutting off an enlarged area and flash together by the edge cutting device;
(4) after the punching and trimming are finished, the punching male die rises for a certain distance to drive the punched enlarged area to rise together to separate the enlarged area from the punching female die, the punching male die moves the enlarged area to the storage area, the positioning column continues to rise, and the blocking plate separates the enlarged area from the positioning column to enable the enlarged area to enter the preset storage area;
(5) and resetting the punching male die.
The invention has the beneficial effects that:
(1) the specific embodiment of the invention aims at the specific product with the hole characteristic, the transverse size of the blank before stamping is increased by enlarging the cavity of the stamping die, and the product after the previous stamping procedure is shaped and trimmed by utilizing the punching procedure after stamping, so that the size deviation caused by insufficient filling of the cavity is avoided, and meanwhile, the universal flash phenomenon after stamping is eliminated.
(2) The specific embodiment of the invention comprises positioning holes prefabricated in the part enlarged area, positioning columns matched with the positioning holes are arranged on the punching die, the positioning columns are in interference fit with the positioning holes, after punching and trimming are completed, the positioning columns lift the punched and separated enlarged area to a preset storage area, and then send the separated enlarged area to the storage area under the cooperation of the blocking plate, so that the punching position deviation and rim charge splashing in the punching process are avoided, meanwhile, the positioning columns can send punched waste materials to the preset storage area together, and the cleaning process is reduced.
Drawings
FIG. 1 is a schematic cross-sectional view of a stamping die;
FIG. 2 is a schematic cross-sectional view of a punching die;
FIG. 3 is a cross-sectional view of the fixing portion;
FIG. 4 is a perspective view of a molded part;
FIG. 5 is a schematic view of the trimming apparatus;
FIG. 6 is a schematic view of a flash;
fig. 7 is a schematic view of a blank after being stamped by the stamping die.
Description of reference numerals: 1. a stamping die; 101. a cavity; 102. stamping a male die; 103. a main punch; 104. punching a positioning hole; 2. punching a die; 201. punching a male die; 202. a positioning column; 203. a fixed part; 204. a damming board; 205. a fixed block; 206. fixing the window; 207. a pressure lever; 208. a groove; 209. a spring; 3. a trimming device; 4. semi-finished products; 401. an enlarged region; 402. flashing; 403. positioning holes; 5. and (4) an ejection device.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.
Referring to fig. 1, 2 and 5, in a specific embodiment of the present invention, a forming apparatus for a part with a hole, referring to fig. 4, includes a stamping die 1 and a punching die 2, a transverse dimension of a cavity 101 of the stamping die 1 is larger than a transverse dimension of the part, the punching die 2 includes an edge cutting device 3, the edge cutting device 3 is used for cutting an enlarged area 401 of a semi-finished product 4 to form the part, in this embodiment, the transverse dimension of the cavity 101 refers to a side length of the cavity 101, i.e., a length and a width of the cavity 101, and similarly, the transverse dimension of the part refers to a dimension parallel to a horizontal plane when the part is horizontally placed. The phenomenon that the material is not fully filled in the mold cavity 101 is a common bad phenomenon, which is often caused by insufficient tonnage of a stamping device, poor material flowability and complex product structure characteristics, particularly for some products with characteristics such as corners, the material is difficult to fill in the corners, in addition, as shown in fig. 6, in the stamping process, the material is often accompanied by the generation of flash 402, which is a common bad phenomenon and generally occurs at the mold closing position of the mold, and is generally caused by insufficient mold closing force or poor flatness at the mold closing position of a concave-convex mold and the like. At present, flash generated during stamping of stamping parts can be eliminated through secondary working procedures, and the cost of a die and the time cost are increased. The size of increase stamping die cavity 101 is passed through to this embodiment for need not fill the cavity completely during the punching press, and the cavity need not set up too much complex construction, cuts edge through the shaping with the unanimous side cut device 3 shaping of part appearance and accomplishes the shaping of part, makes under the condition that the fashioned product precision does not descend, and the precision of stamping die 1 and the requirement of compound die power are showing and are reducing, and need not the secondary process and eliminate the overlap.
In the above embodiment, referring to fig. 1, 2, and 7, the stamping die 1 includes the stamping male die 102, the stamping male die 102 includes the main punch 103, the main punch 103 includes the positioning hole punch 104, the positioning hole punch 104 is used for punching the positioning hole 403 in the enlarged area 401, the positioning column 202 matched with the positioning hole 403 is provided on the stamping male die 201 of the stamping die 2, the positioning hole 403 and the positioning column 202 are matched to help the edge cutting device 3 and the stamping male die 201 precisely shape and cut edges and punch holes on the semi-finished product 4, and meanwhile, the edge cutting splash can be prevented from damaging equipment and personnel in the punching process.
In the above embodiment, referring to fig. 2, one end of the positioning post 202 is provided with a fixing portion 203 fixed with the positioning hole 403, the fixing portion 203 may be one end of the post 202 interfering with the positioning hole 403, the other end of the positioning post 202 is fixed on the lifting device of the punching male die 201 by passing through the placing groove, and the lifting device controls the positioning column 202 to carry out independent lifting movement, a separating device for separating the punched enlarged area 401 is arranged on the punching male die 201, in this embodiment a dam 204, secured to the piercing punch 201, after trimming and piercing are completed, the enlarged area 401 of the semi-finished product 4 is separated from the molded part, the enlarged area 401 is fixed with the positioning column fixing part 203, after the punching male die 201 rises, the enlarged area 401 is driven to rise together, the punching male die 201 is translated to the trimming material storage area, at the moment, the positioning column 202 continues to rise, and the blocking plate 204 is matched with the positioning column 202 to enable the enlarged area 401 to be separated from the fixing portion 203 and fall into the storage area. In other embodiments, the fixing portion 203 may also include fixing blocks 205 arranged in a mirror symmetry manner, as shown in fig. 3, the cross section of the fixing block 205 is an i-shaped structure, the fixing block 205 is movably connected in a fixing window 206 of the fixing portion 203, a pressure rod 207 for radially pressing the fixing block 205 to fix the fixing block 205 and the semi-finished product enlarged region 401 is arranged in the positioning column 202, a groove 208 is arranged on an upper end surface of the fixing block 205, a spring 209 is pressed between the bottom of the groove 208 and the fixing block 205, an inclined surface or an arc surface for cooperating with the pressure rod 207 is arranged at one end of the fixing block 205 facing the center of the fixing portion 203, the pressure rod 207 is controlled by a lifting device arranged in the punching male mold 201, and the fixing block 205 is in interference fit with the positioning hole 403 or separated from the positioning hole 403 by movement of the pressure rod 207 relative to the positioning column 202.
In the above embodiment, the ejection device 5 is further included for ejecting the semi-finished product and the finished product.
The invention also comprises a molding method of the molding device, which comprises the following steps:
(1) putting a semi-finished product with increased size into the cavity 101 with increased size of the stamping die 1;
(2) punching to form a semi-finished product with a transverse dimension larger than that of the molded part and a positioning hole 403 in the semi-finished product enlarged area 401;
(3) placing the semi-finished product into a punching die 2, pressing down a punching male die 201, pressing down the punching male die 201 and an edge cutting device 3 after a positioning column 202 enters a positioning hole 403, and punching the enlarged area 401 and the flash 402 by the edge cutting device 3;
(4) after punching and trimming are finished, the punching male die 201 rises for a certain distance to drive the punched and separated enlarged area 401 to rise together to separate the enlarged area 401 from the punching female die, after the punching male die 201 moves the enlarged area 401 to the storage area, the positioning column 202 continues to rise, and the blocking plate 204 separates the enlarged area 401 from the positioning column 202 to enable the enlarged area 401 to enter the preset storage area;
(5) the punching male die 201 is reset.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. The utility model provides a forming device of foraminiferous part, includes stamping die and cut-out press, its characterized in that: the punching die is characterized in that the transverse size of a cavity of the punching die is larger than that of the part, and the punching die comprises an edge cutting device which is used for cutting off an enlarged area of a semi-finished product so as to form the part.
2. The apparatus for molding an apertured member as set forth in claim 1, wherein: the punching die comprises a punching male die, the punching male die comprises a main punch, the main punch comprises a positioning hole punching block, the positioning hole punching block is used for punching positioning holes in the enlarged area of the semi-finished product, and positioning columns matched with the positioning holes are arranged on the punching holes of the punching die.
3. The apparatus for molding an apertured member as set forth in claim 2, wherein: the positioning column is provided with a fixing part fixed with the positioning hole, and the punching male die is provided with a separating device separated from the cut semi-finished product enlarged area.
4. A molding apparatus for a holed member according to claim 3, wherein: the fixing part is in interference fit with the positioning hole, and the punching male die is provided with a blocking plate for enlarging areas.
5. A molding apparatus for a holed member according to claim 3, wherein: the fixed part includes the fixed block that mirror symmetry set up, and fixed block swing joint is in the fixed window of fixed part, be equipped with in the reference column and be used for making fixed block and locating hole interference fit or make the depression bar of fixed block and locating hole separation with the fixed block radial extrusion.
6. The apparatus for molding an apertured member as set forth in claim 5, wherein: the upper end face of the fixing part is provided with a groove, and a spring is pressed between the bottom of the groove and the fixing block.
7. A method for molding a holed member, comprising: the molding apparatus according to claim 4.
8. The method of claim 7, wherein: the method comprises the following steps:
(1) placing a blank with increased size into a stamping die;
(2) punching to form a semi-finished product with a transverse dimension larger than that of the formed part, and punching a positioning hole in the enlarged area;
(3) placing the semi-finished product into a punching die, pressing down a punching male die, pressing down a punching punch and an edge cutting device after a positioning column enters a positioning hole, and cutting off an enlarged area and flash together by the edge cutting device;
(4) after the punching and trimming are finished, the punching male die rises for a certain distance to drive the enlarged area of the semi-finished product to rise together to separate the enlarged area from the punching female die, the positioning column continues to rise after the enlarged area is moved to the storage area by the punching male die, and the enlarged area is separated from the positioning column by the blocking plate to enter a preset storage area;
(5) and resetting the punching male die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110986757.2A CN113828683B (en) | 2021-08-26 | 2021-08-26 | Forming device and forming method for parts with holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110986757.2A CN113828683B (en) | 2021-08-26 | 2021-08-26 | Forming device and forming method for parts with holes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113828683A true CN113828683A (en) | 2021-12-24 |
| CN113828683B CN113828683B (en) | 2024-04-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110986757.2A Active CN113828683B (en) | 2021-08-26 | 2021-08-26 | Forming device and forming method for parts with holes |
Country Status (1)
| Country | Link |
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| CN (1) | CN113828683B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003170239A (en) * | 2001-12-06 | 2003-06-17 | Nissan Motor Co Ltd | Apparatus for trimming forged component |
| JP2005246400A (en) * | 2004-03-02 | 2005-09-15 | Nissan Motor Co Ltd | Die apparatus for forging and forging method |
| CN104439027A (en) * | 2014-11-05 | 2015-03-25 | 许昌中兴锻造有限公司 | New forging process for yoke shaft of transmission shaft |
| CN204524025U (en) * | 2015-04-07 | 2015-08-05 | 台州市宇鹏机械锻造有限公司 | Punching trimming integration mold |
| CN106513501A (en) * | 2016-09-30 | 2017-03-22 | 中国南方航空工业(集团)有限公司 | Composite die for trimming and piercing of forgings |
| CN206065167U (en) * | 2015-05-29 | 2017-04-05 | 昌利锻造有限公司 | A kind of five or six grades of shift fork edgers of automobile |
| CN106623634A (en) * | 2016-12-24 | 2017-05-10 | 柳州凌云汽车零部件有限公司 | Stamping die for front door inner panel of automobile |
| CN208004620U (en) * | 2018-02-27 | 2018-10-26 | 上海环讯实业有限公司 | A kind of punching trimming compound die |
| CN109663876A (en) * | 2017-10-14 | 2019-04-23 | 辽宁五八内燃机配件有限公司 | A kind of edge-cutting and hole-punching correcting combined die and its application method suitable for forging automatic production line |
| CN209773246U (en) * | 2019-04-16 | 2019-12-13 | 广州中益机械有限公司 | Trimming and flanging die |
| CN211965553U (en) * | 2020-01-09 | 2020-11-20 | 无锡晋拓汽车部件有限公司 | Precise punching die |
-
2021
- 2021-08-26 CN CN202110986757.2A patent/CN113828683B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003170239A (en) * | 2001-12-06 | 2003-06-17 | Nissan Motor Co Ltd | Apparatus for trimming forged component |
| JP2005246400A (en) * | 2004-03-02 | 2005-09-15 | Nissan Motor Co Ltd | Die apparatus for forging and forging method |
| CN104439027A (en) * | 2014-11-05 | 2015-03-25 | 许昌中兴锻造有限公司 | New forging process for yoke shaft of transmission shaft |
| CN204524025U (en) * | 2015-04-07 | 2015-08-05 | 台州市宇鹏机械锻造有限公司 | Punching trimming integration mold |
| CN206065167U (en) * | 2015-05-29 | 2017-04-05 | 昌利锻造有限公司 | A kind of five or six grades of shift fork edgers of automobile |
| CN106513501A (en) * | 2016-09-30 | 2017-03-22 | 中国南方航空工业(集团)有限公司 | Composite die for trimming and piercing of forgings |
| CN106623634A (en) * | 2016-12-24 | 2017-05-10 | 柳州凌云汽车零部件有限公司 | Stamping die for front door inner panel of automobile |
| CN109663876A (en) * | 2017-10-14 | 2019-04-23 | 辽宁五八内燃机配件有限公司 | A kind of edge-cutting and hole-punching correcting combined die and its application method suitable for forging automatic production line |
| CN208004620U (en) * | 2018-02-27 | 2018-10-26 | 上海环讯实业有限公司 | A kind of punching trimming compound die |
| CN209773246U (en) * | 2019-04-16 | 2019-12-13 | 广州中益机械有限公司 | Trimming and flanging die |
| CN211965553U (en) * | 2020-01-09 | 2020-11-20 | 无锡晋拓汽车部件有限公司 | Precise punching die |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113828683B (en) | 2024-04-30 |
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