CN114951072A - Stamping and drawing die - Google Patents
Stamping and drawing die Download PDFInfo
- Publication number
- CN114951072A CN114951072A CN202210705912.3A CN202210705912A CN114951072A CN 114951072 A CN114951072 A CN 114951072A CN 202210705912 A CN202210705912 A CN 202210705912A CN 114951072 A CN114951072 A CN 114951072A
- Authority
- CN
- China
- Prior art keywords
- die
- plate
- air
- scraper
- supporting plate
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 claims abstract description 18
- 238000004140 cleaning Methods 0.000 claims description 14
- 238000004080 punching Methods 0.000 claims 1
- 239000002893 slag Substances 0.000 abstract description 17
- 239000002923 metal particle Substances 0.000 abstract description 6
- 239000007769 metal material Substances 0.000 abstract description 4
- 239000002245 particle Substances 0.000 description 13
- 239000000463 material Substances 0.000 description 11
- 238000007790 scraping Methods 0.000 description 5
- 230000003749 cleanliness Effects 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/16—Rigid blades, e.g. scrapers; Flexible blades, e.g. wipers
- B08B1/165—Scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
-
- 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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
-
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Cleaning In General (AREA)
Abstract
The invention belongs to the technical field of stamping dies, and particularly relates to a stamping and drawing die which comprises a lower female die and an upper male die, wherein the upper end of one surface of the upper male die, which is opposite to the lower female die, is fixedly connected with a supporting plate; the two sliding plates are respectively connected with the two sides of the supporting plate in a sliding manner, and one side of each sliding plate, which is far away from the supporting plate, is hinged with a scraper; a return spring is fixedly connected between the two sliding plates; the placing groove is formed in the bottom of the lower concave die cavity and is embedded with the placing groove when the supporting plate moves to the bottom of the lower concave die cavity; side grooves are formed in the two sides of the placing groove; the invention solves the problems that in the stamping and drawing process, after the metal material is continuously drawn and bent, metal particles and slag are easy to attach to the surface of a working part, so that the surface of a workpiece obtained by stamping and drawing has large scratches and scratches, and the quality of the workpiece is influenced.
Description
Technical Field
The invention belongs to the technical field of stamping dies, and particularly relates to a stamping and drawing die.
Background
Stamping is a press working method in which a die mounted on a press is used to apply pressure to a material at room temperature to cause separation or plastic deformation of the material, thereby obtaining a desired part.
Drawing is a stamping process for changing straight blanks or process pieces into curved surfaces, and the curved surfaces are mainly formed by extending materials positioned at the bottom of a male die and at the upper part of a blank holder;
in the process of stamping and drawing, after the metal material is continuously drawn and bent, metal particles and dross are easily attached to the surface of a working part, and when the surface of the metal material is in contact with the working surface, friction is generated between the metal particles and the dross, so that the surface of a workpiece obtained by stamping and drawing is greatly scratched and scratched, the quality of the workpiece is influenced, and meanwhile, after the stamping and drawing are finished, the process of separating the workpiece from a die and taking out the workpiece is troublesome.
Based on the technical scheme, the invention designs the stamping and drawing die to solve the technical problems.
Disclosure of Invention
In order to make up for the defects and solve the problem that in the process of stamping and drawing, after metal materials are drawn and bent in continuous operation, metal particles and slag are easy to adhere to the surface of a working part, so that the surface of a workpiece obtained by stamping and drawing is greatly scratched and scratched, and the quality of the workpiece is influenced, the invention provides a stamping and drawing die.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a stamping and drawing die, which comprises a lower female die and an upper male die, wherein the upper male die is arranged on one surface opposite to the lower female die, and the stamping and drawing die comprises:
the electric telescopic rod is arranged in the center of the bottom of the lower female die, and the upper end of the electric telescopic rod is fixedly connected with a supporting plate;
the two sliding plates are respectively connected with the two sides of the supporting plate in a sliding manner, and one side of each sliding plate, which is far away from the supporting plate, is hinged with a scraper; a return spring is arranged between the two sliding plates;
the placing groove is formed in the bottom of the lower concave die cavity and is embedded with the placing groove when the supporting plate moves to the bottom of the lower concave die cavity; side grooves are formed in the two sides of the placing groove.
Preferably, the press-and-draw die further includes:
the cavity is formed in the middle of the supporting plate, and the two sliding plates are connected in the cavity in a sliding mode;
the two pistons are fixedly connected to one side, close to the sliding plate, of the sliding plate respectively, and the return spring is fixedly connected between the two pistons;
one end of the air duct is communicated with the middle part of the cavity, one end of the scraper far away from the support plate is provided with an air storage cavity, and the other end of the air duct is communicated with the air storage cavity;
the air hole is formed in the lower end of the scraper and communicated with the air storage cavity.
Preferably, one end, far away from the supporting plate, of the scraper is hinged to a wiping plate, a torsional spring is sleeved at the hinged position of the wiping plate, and a hollow groove is formed in one side, close to the wiping plate, of the scraper.
Preferably, the inner side of the empty groove is fixedly connected with an air bag, the lower end of the air bag is provided with a hole, and the hole is communicated with the air hole.
Preferably, one side of the side groove, which is far away from the center of the lower concave die, is provided with a groove, the upper end of the groove is hinged with a convex block, the hinged part of the convex block is sleeved with a torsional spring, and the lower end of the convex block is fixedly connected with a cleaning plate.
Preferably, the air hole is arranged obliquely downward.
Preferably, the air holes are arranged in a conical shape with the diameter gradually decreasing from top to bottom.
Preferably, the lower end of the scraper rotates towards the side wall of the lower die and is provided with a ball.
Preferably, the middle part of the cleaning plate is provided with a through hole.
Preferably, the lower end surface of the through hole is disposed obliquely toward the groove.
The invention has the following beneficial effects:
1. compared with the traditional technical scheme, the stamping and drawing die has the advantages that metal particles and slag on the working surface of the lower concave die are cleaned by the scraper before stamping and drawing, and the conditions of scratches and gouges generated when materials are in contact with the surface of the lower concave die in the drawing process are avoided.
2. According to the stamping and drawing die, the piston is driven to move towards the middle of the cavity through the sliding plate, air in the middle of the cavity is extruded, the extruded air enters the scraper through the air guide pipe and is blown out through the air holes, and the air blown out from the air holes blows the slag particles scraped by the scraper, so that the slag particles can fall into the side groove more smoothly, and meanwhile, the slag particles are not easy to adhere to the scraper.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is an enlarged view of a portion of FIG. 1 at B;
in the figure: 1. a lower concave die; 2. an upper male die; 3. an electric telescopic rod; 4. a support plate; 5. a sliding plate; 6. a squeegee; 7. a placement groove; 8. a side groove; 9. a cavity; 10. a piston; 11. an air duct; 12. an air storage cavity; 13. air holes; 14. wiping the board; 15. an empty groove; 16. an air bag; 17. a groove; 18. a bump; 19. cleaning the plate; 20. a ball bearing; 21. a through hole; 22. a return spring.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 3, the stamping and drawing die of the present invention includes a lower female die 1 and an upper male die 2, wherein the upper male die 2 is disposed on a surface opposite to the lower female die 1, and includes:
the electric telescopic rod 3 is installed in the center of the bottom of the lower concave die 1, and a supporting plate 4 is fixedly connected to the upper end of the electric telescopic rod 3;
the two sliding plates 5 are respectively connected with two sides of the supporting plate 4 in a sliding manner, and one side, far away from the supporting plate 4, of each sliding plate 5 is hinged with a scraper 6; a return spring 22 is arranged between the two sliding plates 5;
the placing groove 7 is formed in the bottom of the cavity of the lower female die 1, and the supporting plate 4 is embedded with the placing groove 7 when moving to the bottom of the cavity of the lower female die 1; side grooves 8 are formed in the two sides of the placing groove 7;
when the device works, in an initial state, the supporting plate 4 is positioned on the upper surface of the cavity of the lower female die 1, and the scraper 6 is in contact with the side wall of the cavity of the lower female die 1; before stamping and drawing are needed, a material is placed on the upper surface of a lower female die 1; then controlling the electric telescopic rod 3 to contract to drive the support plate 4 to move downwards, wherein in the process that the support plate 4 moves downwards, the scraper 6 moves downwards along the side wall of the lower female die 1, and the scraper 6 scrapes off slag particles on the arc-shaped side wall of the lower female die 1; when the scraper 6 moves downwards, the distance between the support plate 4 and the arc-shaped side wall of the lower female die 1 is reduced, so that the side wall of the lower female die 1 extrudes the scraper 6 to push the sliding plate 5 to slide towards the center of the support plate 4, and when a workpiece is machined, the surface of the workpiece is coated with lubricating oil, and the lubricating oil on the workpiece is coated on the inner wall of the cavity of the lower female die 1, so that the friction force of the inner wall of the cavity of the lower female die 1 is reduced; so that the scraper 6 can cling to the inner wall of the cavity of the lower female die 1 and smoothly slide downwards; when the sliding plate 5 slides on the support plate 4, the return spring 22 is compressed; when the support plate 4 moves to the position at the upper end of the placing groove 7, the scrapers 6 on the two sides drive the scraped slag particles into the side groove 8, meanwhile, the scrapers 6 also enter the side groove 8, and the support plate 4 is embedded with the placing groove 7 to form a plane; then controlling the upper male die 2 to move the stamping material downwards to complete the drawing process in the lower female die 1; when the die is removed after the stamping is finished, the controller controls the electric telescopic rod 3 to extend upwards, the electric telescopic rod 3 pushes the support plate 4 to move upwards, and the support plate 4 removes the die from the material, so that the die is conveniently taken after the stamping; when the scraper blade 6 is separated from the side groove 8, the sliding plate 5 slides to the two sides of the supporting plate 4 under the action of the elastic potential energy released by the return spring 22;
according to the invention, before stamping and drawing, the scraper plate cleans metal particles and dross on the working surface of the lower concave die 1, so that the conditions of scratches and grazes generated when materials contact with the surface of the lower concave die 1 in the drawing process are avoided.
As an embodiment of the present invention, the press-drawing die further includes:
the cavity 9 is formed in the middle of the supporting plate 4, and the two sliding plates 5 are connected in the cavity 9 in a sliding mode;
the two pistons 10 are respectively fixedly connected to one side of the sliding plate 5, which is close to the sliding plate, and the return spring 22 is fixedly connected between the two pistons 10;
one end of the air duct 11 is communicated with the middle part of the cavity 9, one end of the scraper 6 far away from the support plate 4 is provided with an air storage cavity 12, and the other end of the air duct 11 is communicated with the air storage cavity 12;
the air hole 13 is formed in the lower end of the scraper 6, and the air hole 13 is communicated with the air storage cavity 12;
during operation, in the process that the supporting plate 4 moves downwards, the sliding plate 5 drives the piston 10 to move towards the middle of the cavity 9 to extrude air in the middle of the cavity 9, the extruded air enters the scraper 6 through the air duct 11 and is blown out through the air holes 13, the air blown out from the air holes 13 blows the slag particles scraped by the scraper 6, the force of the air blown out from the air holes 13 enables the slag particles to smoothly slide into the side grooves 8 along the side walls of the lower female die 1, and meanwhile, the slag particles are not easy to adhere to the scraper 6; when the scraper 6 enters the side groove 8, the sliding plate 5 drives the piston 10 to slide towards the middle of the cavity 9; when the support plate 4 moves to the upper end of the lower concave die 1, the sliding plate 5 slides to the two sides of the support plate 4 under the action of the elastic potential energy released by the return spring 22, and outside air enters the cavity 9 through the air duct 11 and then carries out the next cleaning work.
As an embodiment of the invention, one end of the scraping plate 6, which is far away from the supporting plate 4, is hinged with a wiping plate 14, a torsion spring is sleeved at the hinged position of the wiping plate 14, and one side of the scraping plate 6, which is close to the wiping plate 14, is provided with a hollow groove 15;
when the device works, the wiping plate 14 is arranged, after the scraping plate 6 scrapes off slag particles on the side wall of the lower female die 1, the wiping plate 14 cleans the side wall for the second time, so that the arc-shaped side wall of the lower female die 1 is ensured to be cleaner before stamping and drawing, and the arc-shaped surface of a material after stamping and drawing is ensured to be smoother and smoother; after the lower end of the scraper 6 enters the side groove 8, the wiping plate 14 enters the side groove 8 along with the scraper 6, and the wiping plate 14 rotates to enter the empty groove 15 under the extrusion action of the side wall of the side groove 8; when the next work is carried out, after the scraping plate 6 drives the wiping plate 14 to be separated from the side groove 8, the wiping plate 14 is separated from the empty groove 15 under the action of the torsion spring, and the next cleaning work is continued; the cleanliness of the working surface of the stamping and drawing die is further ensured.
As an embodiment of the present invention, an air bag 16 is fixedly connected to the inner side of the empty slot 15, a hole is formed at the lower end of the air bag 16, and the hole is communicated with the air hole 13;
when the side groove type slag blowing machine works, the air bag 16 is arranged, the wiping plate 14 extrudes the air bag 16 in the process of entering the hollow groove 15, gas in the air bag 16 is discharged into the air holes 13 through the holes, and slag particles in the side groove 8 are blown off through the air holes 13; after the wiper 14 is separated from the hollow 15, the air bag 16 loses the compression of the wiper 14, and since the material of the air bag 16 is mostly elastic material such as rubber, when the wiper 14 does not compress the air bag 16, the air bag 16 is elastically restored, the air bag 16 returns to the expanded state, and the air inside the air bag 16 returns to the original state.
As an embodiment of the invention, a groove 17 is formed in one side of the side groove 8 away from the center of the lower female die 1, a projection 18 is hinged to the upper end of the groove 17, a torsion spring is sleeved at the hinged position of the projection 18, and a cleaning plate 19 is fixedly connected to the lower end of the projection 18;
when the cleaning machine works, in an initial state, the lug 18 is positioned outside the groove 17, and the cleaning plate 19 is positioned inside the groove 17; in the process that the wiping plate 14 moves downwards in the side groove 8, the lower end of the wiping plate 14 firstly extrudes the bump 18, the bump 18 rotates towards the direction of the groove 17 to drive the cleaning plate 19 to rotate towards the direction far away from the groove 17, so that the cleaning plate 19 is positioned outside the groove 17, and in the process that the wiping plate 14 continues to move downwards, the cleaning plate 19 cleans the surface of the wiping plate 14; after the wiping plate 14 continues to move downwards to be separated from the lug 18, the lug 18 returns to the initial state under the action of the torsion spring, and the lug 18 is positioned outside the groove 17 and is in contact with the upper end of the scraping plate 6; after the primary stamping and drawing is finished, the electric telescopic rod 3 extends to drive the supporting plate 4 to move upwards to drive the wiping plate 14 to move upwards, the upper end of the wiping plate 14 extrudes the bump 18 again when contacting the bump 18, so that the cleaning plate 19 cleans the wiping plate 14 in the opposite direction for the second time, the cleanliness of the wiping plate 14 is ensured, and the cleanliness of the lower female die 1 during the stamping and drawing of materials is ensured.
In one embodiment of the present invention, the air hole 13 is formed obliquely downward.
The air holes 13 are arranged in a conical shape with the diameter gradually reduced from top to bottom;
during operation, the air holes 13 are arranged to be inclined downwards in a conical shape, so that the air holes 13 are aligned to the side wall of the lower concave die 1, and slag particles adhered to the side wall can be blown up better.
As an embodiment of the present invention, the lower end of the scraper 6 is provided with a ball 20 rotating towards the side wall of the lower die 1;
when the scraper device works, the balls 20 are arranged, so that the friction force of one side of the scraper 6, which is far away from the center of the lower female die 1, on the side edge of the upper end face of the side groove 8 is reduced in the process that the scraper 6 enters the side groove 8, on one hand, the abrasion on the lower female die 1 is reduced, and on the other hand, the scraper 6 can smoothly move downwards along the arc-shaped side wall of the lower female die 1; the situation that the scraper 6 abuts against the arc-shaped side wall of the lower die 1 is reduced.
In one embodiment of the present invention, the cleaning plate 19 has a through hole 21 formed in the middle thereof.
The lower end surface of the through hole 21 is obliquely arranged towards the groove 17;
in operation, through setting up inclined through hole 21, in the in-process of wiping board 14 along the downward motion of side channel 8, clearance board 19 clears up the surface of wiping board 14, and the slag particle that the clearance produced falls in side channel 8 from the opposite side of clearance board 19 through inclined through hole 21 for the slag particle that clears up from wiping board 14 and come out can not pile up on clearance board 19 surface.
Claims (10)
1. The utility model provides a punching drawing die, includes lower die (1) and last terrace die (2), go up terrace die (2) and set up in the relative one side of lower die (1), its characterized in that: the method comprises the following steps:
the electric telescopic rod (3) is installed in the center of the bottom of the lower concave die (1), and a supporting plate (4) is fixedly connected to the upper end of the electric telescopic rod (3);
the two sliding plates (5) are respectively connected with two sides of the supporting plate (4) in a sliding mode, and one side, far away from the supporting plate (4), of each sliding plate (5) is hinged with a scraper (6); a return spring (22) is arranged between the two sliding plates (5);
the placing groove (7) is formed in the bottom of the cavity of the lower female die (1), and the supporting plate (4) is embedded with the placing groove (7) when moving to the bottom of the cavity of the lower female die (1); side grooves (8) are formed in the two sides of the placing groove (7).
2. The press-and-draw die as set forth in claim 1, wherein: the stamping and drawing die further comprises:
the cavity (9) is formed in the middle of the supporting plate (4), and the two sliding plates (5) are connected in the cavity (9) in a sliding mode;
the two pistons (10) are respectively fixedly connected to one side, close to the sliding plate (5), of the sliding plate (5), and the return spring (22) is fixedly connected between the two pistons (10);
one end of the air duct (11) is communicated with the middle part of the cavity (9), one end of the scraper (6) far away from the supporting plate (4) is provided with an air storage cavity (12), and the other end of the air duct (11) is communicated with the air storage cavity (12);
the air hole (13), the air hole (13) is arranged at the lower end of the scraper (6), and the air hole (13) is communicated with the air storage cavity (12).
3. The press-drawing die as set forth in claim 1 or 2, wherein: one end, far away from the support plate (4), of the scraper (6) is hinged to a wiping plate (14), a torsion spring is sleeved at the hinged position of the wiping plate (14), and a hollow groove (15) is formed in one side, close to the wiping plate (14), of the scraper (6).
4. The press-and-draw die as set forth in claim 3, wherein: the inner side of the empty groove (15) is fixedly connected with an air bag (16), the lower end of the air bag (16) is provided with a hole, and the hole is communicated with the air hole (13).
5. The press-and-draw die as set forth in claim 4, wherein: keep away from side groove (8) one side at lower die (1) center is seted up fluted (17), the upper end of recess (17) articulates there is lug (18), the articulated department cover of lug (18) is equipped with the torsional spring, the lower extreme of lug (18) has linked firmly clearance board (19).
6. The press-and-draw die as set forth in claim 2, wherein: the air holes (13) are arranged obliquely downwards.
7. The press-and-draw die as set forth in claim 6, wherein: the air holes (13) are arranged in a conical shape with the diameter gradually reduced from top to bottom.
8. The press-and-draw die as set forth in any one of claims 4 to 7, wherein: the lower end of the scraper (6) rotates towards the side wall of the lower concave die (1) and is provided with a ball (20).
9. The press-and-draw die as set forth in claim 5, wherein: the middle part of the cleaning plate (19) is provided with a through hole (21).
10. The press-and-draw die as set forth in claim 9, wherein: the lower end face of the through hole (21) is obliquely arranged towards the groove (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210705912.3A CN114951072B (en) | 2022-06-21 | 2022-06-21 | Stamping drawing die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210705912.3A CN114951072B (en) | 2022-06-21 | 2022-06-21 | Stamping drawing die |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114951072A true CN114951072A (en) | 2022-08-30 |
| CN114951072B CN114951072B (en) | 2023-08-01 |
Family
ID=82965342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210705912.3A Active CN114951072B (en) | 2022-06-21 | 2022-06-21 | Stamping drawing die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114951072B (en) |
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