CN113828683B - Forming device and forming method for parts with holes - Google Patents
Forming device and forming method for parts with holes Download PDFInfo
- Publication number
- CN113828683B CN113828683B CN202110986757.2A CN202110986757A CN113828683B CN 113828683 B CN113828683 B CN 113828683B CN 202110986757 A CN202110986757 A CN 202110986757A CN 113828683 B CN113828683 B CN 113828683B
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- Prior art keywords
- stamping
- die
- punching
- positioning
- semi
- 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.)
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- 238000000034 method Methods 0.000 title claims description 19
- 238000004080 punching Methods 0.000 claims abstract description 53
- 238000009966 trimming Methods 0.000 claims abstract description 24
- 239000011265 semifinished product Substances 0.000 claims abstract description 22
- 238000005520 cutting process Methods 0.000 claims abstract description 5
- 238000003825 pressing Methods 0.000 claims description 15
- 238000003860 storage Methods 0.000 claims description 10
- 230000000903 blocking effect Effects 0.000 claims description 9
- 238000000465 moulding Methods 0.000 claims description 9
- 239000000047 product Substances 0.000 abstract description 10
- 238000007493 shaping process Methods 0.000 abstract 2
- 239000000463 material Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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 dimension of a cavity of the stamping die is larger than that of the part, the punching die comprises a trimming device, and the trimming device is used for cutting an enlarged area of a semi-finished product to form the part. The stamping die cavity does not need to be provided with too many complex structures, and the shaping and trimming of the part are completed through the trimming device consistent with the shape of the part, so that the precision requirement and cost of the die are reduced under the condition that the shaping precision of a shaped product is not reduced.
Description
Technical Field
The invention relates to a forming device of a part with a hole, and also relates to a forming method comprising the forming device.
Background
The stamping process is a forming process method for obtaining a workpiece with a required shape and size by applying external force to plates, bars and the like by using a press and a corresponding die to enable the plates, the bars and the like to be subjected to plastic deformation or separation.
Unfortunately, flash is often generated during the stamping process, which is a relatively common adverse phenomenon. Flash, also known as burr, is typically present at the mold clamping location, and is typically caused by insufficient mold clamping force, poor flatness at the male and female mold clamping locations, and the like. At present, flash generated during stamping of a stamping part can be eliminated through a secondary working procedure, and the die cost and the time cost are increased.
Insufficient filling of material into the mold cavity is another common problem, often due to insufficient tonnage of the stamping equipment, poor material flow, and more complex product structural features. Particularly for some products having corner features, the material is difficult to fill in place at the corners.
Disclosure of Invention
The invention aims to provide a molding device capable of eliminating flash and molding defects, and also aims to provide a molding method of the molding device.
To this end, the device for forming a perforated part according to the invention comprises a stamping die and a punching die, the stamping die having a cavity with a transverse dimension greater than the transverse dimension of the part, the punching die comprising trimming means for cutting off an enlarged region of the semifinished product so as to form the part.
Further, the stamping die comprises a stamping male die, the stamping male die comprises a main punch, the main punch comprises a positioning Kong Chongkuai, the positioning Kong Chongkuai is used for punching positioning holes in an enlarged area of the semi-finished product, and positioning columns matched with the positioning holes are arranged on punching holes of the stamping die.
Further, 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 enlarged area of the cut semi-finished product.
Further, the fixed part is in interference fit with the positioning hole, and the blocking plate with 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 the fixing window of the fixing part, and the positioning column is internally provided with a pressing rod for radially pressing the fixing blocks to enable the fixing blocks to be in interference fit with the positioning holes or enable the fixing blocks to be separated from the positioning holes.
Further, 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.
The invention also includes a method of forming a foraminate member, comprising the steps of:
(1) Placing the blank with increased size into a stamping die;
(2) Stamping to form a semi-finished product with the transverse dimension larger than that of the formed part, and stamping 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 a trimming device after a positioning column enters a positioning hole, and cutting off an enlarged area together with a flash by the trimming device;
(4) After punching and trimming are completed, the punching male die ascends for a certain distance to drive the punched enlarged area to ascend together so as to separate the enlarged area from the punching female die, after the punching male die moves the enlarged area to the storage area, the positioning column continues to ascend, and the blocking plate separates the enlarged area from the positioning column so as to enable the enlarged area to enter the preset storage area;
(5) Resetting the punching male die.
The beneficial effects of the invention are as follows:
(1) The specific embodiment of the invention aims at a specific product with a hole characteristic, and the transverse dimension of a stamping die cavity and a stamping blank is enlarged, so that the product after the stamping process is shaped and trimmed by utilizing the stamping process after stamping, the dimension deviation caused by insufficient filling of the cavity is avoided, and the phenomenon of flash commonly existing after stamping is eliminated.
(2) The special embodiment of the invention comprises a positioning hole prefabricated in a part enlarging region, wherein a positioning column matched with the positioning hole is arranged on a punching die, the positioning column is in interference fit with the positioning hole, after punching and trimming are completed, the positioning column lifts the punched and separated enlarging region to a preset storage region, the separated enlarging region is sent to the storage region under the cooperation of a blocking plate, so that the position deviation of punching and the splashing of rim charge in the punching process are avoided, and meanwhile, the positioning column can send punched waste to the preset storage region together, so that the cleaning procedure 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 punch;
FIG. 3 is a schematic cross-sectional view of a fixing portion;
FIG. 4 is a schematic perspective view of a molded part;
FIG. 5 is a schematic view of a trimming device;
FIG. 6 is a schematic diagram of flash;
Fig. 7 is a schematic diagram of a semi-finished product after stamping by the stamping die.
Reference numerals illustrate: 1. stamping die; 101. a cavity; 102. stamping a male die; 103. a main punch; 104. positioning Kong Chongkuai; 2. punching a die; 201. a punching male die; 202. positioning columns; 203. a fixing part; 204. a blocking plate; 205. a fixed block; 206. a fixed window; 207. a compression bar; 208. a groove; 209. a spring; 3. a trimming device; 4. a semi-finished product; 401. an enlarged region; 402. flashing; 403. positioning holes; 5. and an ejector device.
Detailed Description
In order to further describe the technical means and effects adopted by the present invention for achieving the intended purpose, the following detailed description will refer to the specific implementation, structure, characteristics and effects according to the present invention with reference to the accompanying drawings and preferred embodiments.
Referring to fig. 1, 2and 5, a molding apparatus for a perforated member according to a specific embodiment of the present invention, the molding member including a punching die 1and a punching die 2, wherein a lateral dimension of a cavity 101 of the punching die 1 is larger than a lateral dimension of the member, the punching die 2 includes a trimming device 3, and the trimming device 3 is configured to cut an enlarged region 401 of a semi-finished product 4 so as to mold the member, and in this embodiment, the lateral dimension of the cavity 101 refers to a side length of the cavity 101, that is, a length and a width of the cavity 101, and similarly, the lateral dimension of the member refers to a dimension parallel to a horizontal plane when the member is horizontally placed. The insufficient filling of the material into the mold cavity 101 is a common bad phenomenon, which is often caused by insufficient tonnage of the stamping equipment, poor material fluidity and more complex product structural characteristics, particularly for some products with characteristics such as corners, the material is difficult to fill in place at the corners, in addition, referring to fig. 6, during the stamping process, flash 402 is often generated, and the phenomenon is a common bad phenomenon, which is generally caused at the mold clamping position, or caused by poor mold clamping force, poor flatness of the concave-convex mold clamping position and the like. At present, flash generated during stamping of a stamping part can be eliminated through a secondary working procedure, and the die cost and the time cost are increased. In this embodiment, by increasing the size of the stamping die cavity 101, the cavity does not need to be completely filled during stamping, and the cavity does not need to be provided with too many complex structures, and the trimming device 3 consistent with the appearance of the component shapes and trims to complete the forming of the component, so that the requirements on the precision and the clamping force of the stamping die 1 are obviously reduced without reducing the precision of the formed product, and the flash is not required to be eliminated by a secondary process.
In the above embodiment, referring to fig. 1, 2 and 7, the stamping die 1 includes a stamping punch 102, the stamping punch 102 includes a main punch 103, the main punch 103 includes a positioning Kong Chongkuai, the positioning hole punch 104 is used for punching a positioning hole 403 in an enlarged area 401, a positioning column 202 matched with the positioning hole 403 is disposed on the stamping punch 201 of the stamping die 2, and the positioning hole 403 and the positioning column 202 cooperate to help the trimming device 3 and the stamping punch 201 to precisely shape, trim and punch on the semi-finished product 4, and meanwhile, the trimming splash damage equipment and personnel in the punching process can be avoided.
In the above embodiment, referring to fig. 2, one end of the positioning column 202 is provided with a fixing portion 203 fixed to the positioning hole 403, the fixing portion 203 may be one end of a column body of the positioning column 202 that is in interference fit with the positioning hole 403, the other end of the positioning column 202 is fixed to a lifting device of the punching punch 201 by passing through a positioning slot, and the lifting device controls the positioning column 202 to perform a separate lifting motion, the punching punch 201 is provided with a separating device for separating the punched enlarged area 401, in this embodiment, a blocking plate 204 fixed to the punching punch 201, after trimming and punching are completed, the enlarged area 401 of the semi-finished product 4 is separated from the formed part, the enlarged area 401 is fixed to the positioning column fixing portion 203, and after the punching punch 201 ascends, the enlarged area 401 is driven to ascend together, the positioning column 202 continues to ascend, and the blocking plate 204 cooperates with the positioning column 202 to separate the enlarged area 401 from the fixing portion 203 and fall into the storage area. In other embodiments, the fixing portion 203 may also include a fixing block 205 disposed in mirror symmetry, as shown in fig. 3, the cross section of the fixing block 205 is in an i-shaped structure, the fixing block 205 is movably connected in a fixing window 206 of the fixing portion 203, a pressing rod 207 for radially pressing the fixing block 205 to fix the fixing block 205 and the semi-finished product enlarging region 401 is disposed in the positioning column 202, a groove 208 is disposed 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 plane or an arc surface for matching with the pressing rod 207 is disposed at one end of the fixing block 205 facing the center of the fixing portion 203, the pressing rod 207 is controlled by a lifting device disposed in the punching punch 201, and the fixing block 205 is made to be in interference fit with the positioning hole 403 or separated from the positioning hole 403 by moving the pressing rod 207 relative to the positioning column 202.
In the above embodiment, the ejector 5 for ejecting the semifinished product and the finished product is also included.
The invention also comprises a molding method of the molding device, which comprises the following steps:
(1) Placing the half-finished product with the increased size into the cavity 101 with the increased size of the stamping die 1;
(2) Stamping to form locating holes 403 in the blank and blank enlarged region 401 having a lateral dimension greater than the molded part;
(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 a trimming device 3 after a positioning column 202 enters a positioning hole 403, and punching an enlarged area 401 and a flash 402 by the trimming device 3;
(4) After punching and trimming are completed, the punching male die 201 ascends for a certain distance, the punched and separated enlarged area 401 is driven to ascend 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 ascend, 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 piercing punch 201 is reset.
The present invention is not limited to the above embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present invention.
Claims (3)
1. The utility model provides a forming device of foraminiferous part, includes stamping die and cut-out press, its characterized in that: the transverse dimension of the cavity of the stamping die is larger than that of the part, and the stamping die comprises a trimming device which is used for cutting out an enlarged area of a semi-finished product to form the part;
the stamping die comprises a stamping male die, the stamping male die comprises a main punch, the main punch comprises a positioning Kong Chongkuai, the positioning Kong Chongkuai is used for punching a positioning hole in an enlarged area of a semi-finished product, and a positioning column matched with the positioning hole is arranged on the stamping male die of the stamping die;
The positioning column is provided with a fixing part matched with the positioning hole, and the punching male die is provided with a separating device which is separated from the enlarged area of the cut semi-finished product;
The fixing part comprises 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 pressing rod used for radially pressing the fixing blocks to enable the fixing blocks to be in interference fit with the positioning holes or enable the fixing blocks to be separated from the positioning holes is arranged in the positioning column;
the separating device is a blocking plate of an enlarged area arranged on the punching male die.
2. A foraminous member forming device as recited in claim 1, wherein: the upper end face of the fixed block is provided with a groove, and a spring is pressed between the bottom of the groove and the fixed block.
3. A method of forming a foraminate member, comprising: the molding apparatus of claim 1, comprising the steps of:
(1) Placing the blank with increased size into a stamping die;
(2) Stamping to form a semi-finished product with the transverse dimension larger than that of the formed part, and stamping a positioning hole in an enlarged area of the semi-finished product;
(3) Placing the semi-finished product into a punching die, pressing down a punching male die, pressing down the punching male die and a trimming device after a positioning column enters a positioning hole, and jointly cutting off an enlarged area of the semi-finished product and a flash by the trimming device;
(4) After punching and trimming are completed, the punching male die ascends for a certain distance to drive the enlarging region of the semi-finished product to ascend together so as to separate the enlarging region from the punching female die, the positioning column continues to ascend after the punching male die moves the enlarging region to the storage region, and the blocking plate separates the enlarging region from the positioning column so as to enable the enlarging region to enter the preset storage region;
(5) 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 CN113828683A (en) | 2021-12-24 |
| CN113828683B true CN113828683B (en) | 2024-04-30 |
Family
ID=78961260
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 |
|---|---|
| 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 |
|---|---|
| CN113828683A (en) | 2021-12-24 |
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