CN113198920A - Sheet metal part stretching die and sheet metal part stretching method - Google Patents
Sheet metal part stretching die and sheet metal part stretching method Download PDFInfo
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- CN113198920A CN113198920A CN202110311093.XA CN202110311093A CN113198920A CN 113198920 A CN113198920 A CN 113198920A CN 202110311093 A CN202110311093 A CN 202110311093A CN 113198920 A CN113198920 A CN 113198920A
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- 239000002184 metal Substances 0.000 title claims abstract description 85
- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 32
- 238000003825 pressing Methods 0.000 claims abstract description 18
- 238000006073 displacement reaction Methods 0.000 claims abstract description 7
- 230000000670 limiting effect Effects 0.000 claims description 32
- 230000001105 regulatory effect Effects 0.000 claims description 15
- 238000005452 bending Methods 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims 1
- 238000010009 beating Methods 0.000 abstract description 9
- 238000012545 processing Methods 0.000 abstract description 7
- 241000251468 Actinopterygii Species 0.000 abstract description 3
- 238000007493 shaping process Methods 0.000 abstract description 2
- 239000007769 metal material Substances 0.000 description 7
- 238000003466 welding Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000012356 Product development Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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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
- 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
- B21D37/12—Particular guiding equipment, e.g. pliers; Special arrangements for interconnection or cooperation of dies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention discloses a sheet metal part stretching die, which comprises: the movable die and the fixed die are oppositely arranged, a female die is arranged on the surface of the movable die, a push groove is formed in the surface of the movable die, the female die comprises a first module and a second module, the second module is respectively arranged on two sides of the first module, the upper end of the second module extends into the push groove and is in sliding connection with the push groove, a male die matched with the female die is arranged on the surface of the fixed die, the male die is in a three-section stepped shape, and the second module corresponds to a third section of plane step of the male die. When the metal plate material is stretched, the pressing plate is firstly contacted with the metal plate material and fixes the metal plate material, so that the influence on the processing quality caused by displacement in the processing process is avoided; then carry out preliminary drawing to the panel beating material through part die, release another module of die after preliminary drawing again, come to carry out the secondary drawing to the panel beating material, the sheet metal component fish tail after two steps of drawing is few, and the shaping quality is good, improves the quality of products.
Description
Technical Field
The invention relates to the technical field of stretching dies, in particular to a sheet metal part stretching die and a sheet metal part stretching method.
Background
The sheet metal part is a product processed by a sheet metal process, and the sheet metal part cannot be separated everywhere in life. The sheet metal part is manufactured by filament power supply winding, laser cutting, heavy processing, metal bonding, metal drawing, plasma cutting, precision welding, roll forming, sheet metal bending forming, die forging and water jet cutting. A definition in a professional journal abroad can define a metal plate as: the sheet metal is a comprehensive cold working process for sheet metal (generally below 6 mm), including shearing, punching/cutting/compounding, folding, welding, riveting, splicing, forming (such as automobile bodies) and the like. The remarkable characteristic is that the thickness of the same part is consistent. The sheet metal part has the characteristics of light weight, high strength, conductivity (capable of being used for electromagnetic shielding), low cost, good large-scale mass production performance and the like, and is widely applied to the fields of electronic appliances, communication, automobile industry, medical appliances and the like, for example, in computer cases, mobile phones and MP3, the sheet metal part is an essential component. Along with the more and more extensive application of panel beating, the design of sheet metal component has become a very important ring in the product development process, and mechanical engineer must skilled master the design skill of sheet metal component for the panel beating of design both satisfies the requirements such as function and the outward appearance of product, can make stamping die make simple, with low costs again.
At present, when drawing the step sheet metal component through tensile mould, the most outstanding side contacts with panel beating material earlier on the die, and panel beating material can inwards produce certain shrink in tensile process, produces the friction with the die surface in the shrink in-process, causes panel beating material surperficial fish tail, still can produce certain displacement simultaneously to the sheet metal component that leads to after the processing has certain error, influences the quality of products. For this reason, a new scheme needs to be designed to give improvements.
Disclosure of Invention
The invention aims to provide a sheet metal part stretching die and a sheet metal part stretching method, which solve the problems that when a step-type sheet metal part is stretched by a stretching die, the most protruded side surface of a female die is firstly contacted with a sheet metal material, the sheet metal material can inwards shrink to a certain extent in the stretching process, and the sheet metal material is rubbed with the surface of the female die in the shrinking process to scratch the surface of the sheet metal material, and simultaneously certain displacement can be generated, so that certain errors exist in the processed sheet metal part to influence the quality of the sheet metal part, and meet the actual use requirements.
In order to achieve the purpose, the invention provides the following technical scheme: a sheet metal component drawing die, comprising: the anti-slip device comprises a movable die, a fixed die, an adjusting frame and an air cylinder, wherein the movable die and the fixed die are oppositely arranged, a female die is arranged on the surface of the movable die, a push groove is formed in the surface of the movable die, the female die comprises a first module and a second module, the second modules are respectively arranged on two sides of the first module, the upper end of the second module extends into the push groove and is in sliding connection with the push groove, a male die matched with the female die is arranged on the surface of the fixed die and is in a three-section stepped shape, the second module corresponds to a third section of plane stepped shape of the male die, and an anti-slip mechanism is arranged on the surface of the movable die and is positioned in the middle of the female die;
the alignment jig includes regulating plate, lower regulating plate, push rod and connecting rod, it sets up the both sides at movable mould and cover half respectively with lower regulating plate to go up the regulating plate, the connecting rod runs through the both ends of cover half and movable mould both sides and connecting rod respectively with the tip welded connection of last regulating plate and lower regulating plate, the connecting rod welds the surface at last regulating plate and is close to one side of movable mould, the connecting rod with last regulating plate set up perpendicularly and terminal extend to push away the inslot and with the terminal welded connection of module two.
As a preferred embodiment of the present invention, two side walls of the push groove are respectively provided with a limiting groove, the upper ends of two side walls of the second module are respectively provided with a limiting block, and the limiting blocks extend into the limiting grooves and are slidably connected with the limiting grooves.
As a preferred embodiment of the invention, the anti-slip mechanism comprises a pressing plate, an adjusting rod, a spring and a limiting plate, wherein a buffer groove is formed in the movable die, an extending groove is formed in the middle of the top surface of the buffer groove, the adjusting rod is arranged in the middle of the lower portion of the movable die, the upper end of the adjusting rod extends into the buffer groove, the lower end of the adjusting rod is connected with the pressing plate, the limiting plate and the spring are respectively arranged in the buffer groove, the limiting plate is fixed on the adjusting rod, the spring is sleeved on the adjusting rod, and the lower end of the spring is connected with the top surface of the limiting plate.
As a preferred embodiment of the present invention, the top surface of the pressure plate is an arc structure protruding upward, an arc groove is arranged in the middle of the bottom surface of the movable mold, the arc groove is communicated with the buffer groove, and the arc groove is embedded with the pressure plate as the pressure plate moves upward continuously.
As a preferred embodiment of the present invention, the two air cylinders are provided and include a first air cylinder and a second air cylinder, an output end of the first air cylinder penetrates through a middle portion of the upper adjusting plate and is fixedly connected with a side wall of the movable mold, and a power output end of the second air cylinder is fixedly connected with a middle portion of a surface of the lower adjusting plate.
As a preferred embodiment of the present invention, the method comprises the following steps:
the method comprises the following steps: cutting a stretched material to form sheet metal part sheet materials, flatly placing the sheet metal part sheet materials on a male die, then starting a first air cylinder, pushing out the first air cylinder to push a movable die, pushing the movable die to the direction of a fixed die, enabling a pressing plate to contact the sheet materials firstly in the continuous downward moving process, enabling the bottom surface of a first module to contact the sheet materials, enabling the first module to be in downward pressing bending after contacting the sheet materials, enabling the sheet materials to be deformed under the influence of the male die and the first module until the bottom surface of the sheet materials is completely in contact with a horizontal step of a second male die section, and completing initial pressing;
step two: keeping a contact pressure state, driving a second air cylinder, driving a lower adjusting plate to move after the second air cylinder is withdrawn, driving an upper adjusting plate through a connecting rod after the lower adjusting plate moves downwards, pushing a second module through a push rod after the upper adjusting plate moves downwards, moving the second module downwards and pushing the sheet materials until a bottom surface bending section of the sheet materials completely contacts a third horizontal step of the male die, keeping for 2-3S, and finishing the stretching of the sheet metal part;
step three: firstly, actuating a cylinder II, pushing the cylinder II out and driving an adjusting frame, driving a module II to move upwards by the adjusting frame, then withdrawing the cylinder I, separating the module I from the sheet materials firstly after the cylinder I is withdrawn, and gradually moving out a pressing plate under the influence of a spring until the bottom surface is completely separated from the sheet materials;
step four: and after the first air cylinder and the second air cylinder are retracted, the finished sheet metal part is taken down, cleaned and stored in a warehouse.
As a preferred embodiment of the invention, the pressure plate is firstly contacted with the sheet material to avoid the displacement of the sheet material, and the pressure plate gradually increases the pressure on the sheet material as the movable die moves downwards to drive the adjusting rod above the pressure plate to contract inwards the buffer groove and extrude the spring.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, when the sheet metal material is stretched, the pressing plate is firstly contacted with the sheet metal material and fixes the sheet metal material, so that the influence on the processing quality caused by displacement in the processing process is avoided; then carry out preliminary drawing to the panel beating material through part die, release another module of die after preliminary drawing again, come to carry out the secondary drawing to the panel beating material, the sheet metal component fish tail after two steps of drawing is few, and the shaping quality is good, improves the quality of products.
Drawings
FIG. 1 is an external structural view of a sheet metal part stretching die according to the present invention;
FIG. 2 is an internal structure view of the sheet metal part drawing die of the present invention;
FIG. 3 is an enlarged view of A in FIG. 2;
fig. 4 is a schematic structural view of a conventional sheet metal part drawing die.
In the figure, 1, a moving die; 2. fixing a mold; 3. a sheet metal part; 4. a first cylinder; 5. an upper adjusting plate; 6. a push rod; 7. a connecting rod; 8. a first module; 9. a second module; 10. a second air cylinder; 11. a male die; 12. a lower adjustment plate; 13. pushing the groove; 14. a limiting groove; 15. a limiting block; 16. pressing a plate; 17. a limiting plate; 18. adjusting a rod; 19. a spring; 20. an extension groove; 21. a buffer tank.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a sheet metal component drawing die, comprising: the movable mould 1, the cover half 2, alignment jig and cylinder, movable mould 1 sets up with cover half 2 opposites, the surface of movable mould 1 is provided with the die, push away the groove 13 has been seted up on the surface of movable mould 1, the die includes module one 8 and module two 9, module two 9 sets up respectively in the both sides of module one 8 and the upper end of module two 9 extend to push away in the groove 13 and with push away groove 13 sliding connection, the surface of cover half 2 is provided with the terrace die 11 and the terrace die 11 that use with the die cooperation and is the syllogic echelonment, module two 9 is corresponding with the third section plane ladder of terrace die 11, the surface of movable mould 1 just is located the die mid-mounting and has anti-skidding mechanism. The conventional sheet metal part 3 stretching die is shown in fig. 4, the integral female die is divided into two modules, and the sheet metal part 3 is processed by the two modules respectively, so that the problem that the sheet metal part 3 is scratched stably in the stretching process in the conventional sheet metal part 3 is solved; the adjusting bracket comprises an upper adjusting plate 5, a lower adjusting plate 12, a push rod 6 and a connecting rod 7, the upper adjusting plate 5 and the lower adjusting plate 12 are respectively arranged on two sides of the movable die 1 and the fixed die 2, the connecting rod 7 penetrates through two sides of the fixed die 2 and the movable die 1, two ends of the connecting rod 7 are respectively connected with the end portions of the upper adjusting plate 5 and the lower adjusting plate 12 in a welding mode, the connecting rod 7 is welded on one side, close to the movable die 1, of the surface of the upper adjusting plate 5, the connecting rod 7 is vertically arranged with the upper adjusting plate 5, the tail end of the connecting rod extends into the push groove 13 and is connected with the tail end of the second module 9 in a welding mode, the adjusting bracket is influenced by the second air cylinder 10 to generate displacement, the second module 1 is moved in the moving process, and the second module 9 is contacted with the sheet metal part 3 after moving downwards and completes stretching.
In a further improved mode, two side walls of the push groove 13 are respectively provided with a limiting groove 14, the upper ends of two side walls of the second module 9 are respectively provided with a limiting block 15, the limiting blocks 15 extend into the limiting grooves 14 and are in sliding connection with the limiting grooves 14, a limiting effect is achieved, and meanwhile the second module 9 can move up and down more stably.
Further improved, anti-skidding mechanism includes clamp plate 16, adjust the pole 18, spring 19 and limiting plate 17, buffer slot 21 has been seted up to the inside of movable mould 1, extension groove 20 has been seted up at the top surface middle part of buffer slot 21, adjust the pole 18 and arrange the below middle part of movable mould 1 in and adjust the upper end of pole 18 and extend to in the buffer slot 21, the lower extreme and the clamp plate 16 of adjusting pole 18 are connected, limiting plate 17 and spring 19 are arranged in buffer slot 21 respectively and limiting plate 17 fixes on adjusting pole 18, spring 19 cup joints on adjusting pole 18 and the lower extreme is connected with limiting plate 17 top surface. The top surface of clamp plate 16 is the bellied arc structure that makes progress, and the bottom surface middle part of movable mould 1 is provided with the arc wall, and the arc wall is linked together with buffer slot 21, and along with clamp plate 16 lasts to move up, arc wall and clamp plate 16 gomphosis, and in the process of moving down that lasts of movable mould 1, 16 bottoms of clamp plate and 3 sheet metal components contact and drive limiting plate 17 and move up, extrude spring 19 simultaneously. The pressure plate 16 is firstly contacted with the sheet materials to prevent the sheet materials from displacing, the adjusting rod 18 above the pressure plate 16 is driven to shrink towards the inside of the buffer groove 21 along with the downward movement of the movable die 1 and extrude the spring 19, the pressure of the pressure plate 16 on the sheet materials is gradually increased, the pressure plate 16 is finally retracted into the arc-shaped groove, and the bottom surface of the pressure plate 16 is kept connected with the top of the sheet metal part 3 until the cylinder I4 is retracted.
In a further improved mode, the two cylinders are arranged and comprise a first cylinder 4 and a second cylinder 10, the output end of the first cylinder 4 penetrates through the middle of the upper adjusting plate 5 and is fixedly connected with the side wall of the movable die 1, the power output end of the second cylinder 10 is fixedly connected with the middle of the surface of the lower adjusting plate 12, and the fixed frame and the movable die 1 are driven through the two cylinders.
Further improved, the method comprises the following steps:
the method comprises the following steps: cutting the stretched material to form sheet metal parts 3, flatly placing the sheet metal parts 3 on a male die 11, then starting a first air cylinder 4, pushing out the sheet metal parts 3 through the first air cylinder 4 to push a movable die 1, pushing the movable die 1 to push a fixed die 2, contacting the sheet metal parts by a pressure plate 16 in the continuous downward moving process, contacting the sheet metal parts after the bottom surface of a first module 8, pressing and bending the sheet metal parts after the first module 8 contacts the sheet metal parts, and generating deformation under the influence of the male die 11 and the first module 8 until the bottom surfaces of the sheet metal parts are completely contacted with two sections of horizontal steps of the male die 11 to finish primary pressing;
step two: keeping a contact pressure state, driving a second air cylinder 10, driving a lower adjusting plate 12 to move after the second air cylinder 10 is retracted, driving an upper adjusting plate 5 through a connecting rod 7 after the lower adjusting plate 12 moves downwards, pushing a second moving die 1 through a push rod 6 after the upper adjusting plate 5 moves downwards, moving a second die block 9 downwards and pushing the sheet stock until a bent section of the bottom surface of the sheet stock completely contacts three horizontal steps of a male die 11, keeping for 2-3S, and finishing the stretching of the sheet metal part 3;
step three: the second cylinder 10 is firstly actuated, the second cylinder 10 is pushed out and drives the adjusting frame, the adjusting frame drives the second module 1 to move upwards, then the first cylinder 4 is retracted, the first module 8 is firstly separated from the sheet material after the first cylinder 4 is retracted, and the pressure plate 16 is gradually moved out under the influence of the spring 19 until the bottom surface is completely separated from the sheet material;
step four: and after the first air cylinder 4 and the second air cylinder 10 are retracted, the finished sheet metal part 3 is taken down, cleaned and stored in a warehouse.
When the sheet metal part processing device is used, sheet metal parts 3 are placed on the male die 11, the first air cylinder 4 is pushed out, the pressing plate 16 is firstly contacted with the sheet metal parts 3, the sheet metal parts are firstly stretched through the first module 8 after the movable die 1 continuously moves downwards, the second air cylinder 10 is retracted and drives the adjusting frame, the adjusting frame drives the second module 1 to move downwards, and the second module 9 is used for secondarily stretching the sheet metal parts, so that the sheet metal parts 3 are processed. And (5) resetting the first air cylinder 4 and the second air cylinder 10, and then taking down the finished sheet metal part 3.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A sheet metal component drawing die, comprising: movable mould (1), cover half (2), alignment jig and cylinder, movable mould (1) sets up its characterized in that with cover half (2) opposites: the surface of the movable mold (1) is provided with a female mold, the surface of the movable mold (1) is provided with a push groove (13), the female mold comprises a first module (8) and a second module (9), the second modules (9) are respectively arranged on two sides of the first module (8), the upper end of the second module (9) extends into the push groove (13) and is in sliding connection with the push groove (13), the surface of the fixed mold (2) is provided with a male mold (11) matched with the female mold for use, the male mold (11) is in a three-section stepped shape, the second module (9) corresponds to a third section of plane stepped shape of the male mold (11), and an anti-slip mechanism is arranged on the surface of the movable mold (1) and positioned in the middle of the female mold;
the alignment jig includes regulating plate (5), adjusting plate (12), push rod (6) and connecting rod (7) down, it sets up the both sides in movable mould (1) and cover half (2) respectively with adjusting plate (12) down to go up regulating plate (5), connecting rod (7) run through the both ends of cover half (2) and movable mould (1) both sides and connecting rod (7) respectively with the tip welded connection who goes up regulating plate (5) and adjusting plate (12) down, connecting rod (7) weld be close to one side of movable mould (1) on the surface of last regulating plate (5), connecting rod (7) set up with last regulating plate (5) are perpendicular and terminal extend to in push away groove (13) and with the terminal welded connection of module two (9).
2. The sheet metal part drawing die of claim 1, wherein: the two side walls of the push groove (13) are respectively provided with a limiting groove (14), the upper ends of the two side walls of the second module (9) are respectively provided with a limiting block (15), and the limiting blocks (15) extend into the limiting grooves (14) and are in sliding connection with the limiting grooves (14).
3. The sheet metal part drawing die of claim 1, wherein: anti-skidding mechanism includes clamp plate (16), adjusts pole (18), spring (19) and limiting plate (17), dashpot (21) have been seted up to the inside of movable mould (1), extending groove (20) have been seted up at the top surface middle part of dashpot (21), adjust pole (18) and arrange in the below middle part of movable mould (1) and adjust the upper end of pole (18) and extend to in dashpot (21), the lower extreme of adjusting pole (18) is connected with clamp plate (16), limiting plate (17) and spring (19) are arranged respectively in dashpot (21) and limiting plate (17) are fixed on adjusting pole (18), and spring (19) cup joint on adjusting pole (18) and the lower extreme is connected with limiting plate (17) top surface.
4. The sheet metal part drawing die of claim 1, wherein: the top surface of clamp plate (16) is the bellied arc structure that makes progress, the bottom surface middle part of movable mould (1) is provided with the arc wall, the arc wall is linked together with dashpot (21), and along with clamp plate (16) continuously shifts up, arc wall and clamp plate (16) gomphosis.
5. The sheet metal part drawing die of claim 1, wherein: the air cylinder is provided with two and includes air cylinder one (4) and air cylinder two (10) altogether, the output of air cylinder one (4) run through last regulating plate (5) middle part and with movable mould (1) lateral wall fixed connection, the power take off of air cylinder two (10) and the surperficial middle part fixed connection of regulating plate (12) down.
6. The sheet metal part stretching method according to claim 1, characterized in that: the method comprises the following steps:
the method comprises the following steps: cutting a stretched material to form a sheet metal part (3), flatly placing the sheet metal part (3) on a male die (11), then starting a cylinder I (4), pushing out the sheet metal part through the cylinder I (4) to push a movable die (1), pushing the movable die (1) to push a fixed die (2), contacting a pressure plate (16) with the sheet metal firstly in the continuous downward moving process, contacting the sheet metal after the bottom surface of a module I (8), pressing and bending the sheet metal after the module I (8) is contacted with the sheet metal, and generating deformation under the influence of the male die (11) and the module I (8) until the bottom surface of the sheet metal is completely contacted with a second-section horizontal ladder of the male die (11) to finish primary pressing;
step two: keeping a contact pressure state, driving a second air cylinder (10), driving a lower adjusting plate (12) to move after the second air cylinder (10) is retracted, driving an upper adjusting plate (5) through a connecting rod (7) after the lower adjusting plate (12) moves downwards, pushing a second moving die (1) through a push rod (6) after the upper adjusting plate (5) moves downwards, moving a second die block (9) downwards and pushing the sheet stock until a bottom surface bending section of the sheet stock completely contacts three horizontal steps of a male die (11), keeping 2-3S, and finishing the stretching of the sheet metal part (3);
step three: the second cylinder (10) is firstly actuated, the second cylinder (10) is pushed out and drives the adjusting frame, the adjusting frame drives the second die block (1) to move upwards, then the first cylinder (4) is retracted, the first die block (8) is firstly separated from the sheet stock after the first cylinder (4) is retracted, and the pressing plate (16) is gradually moved out under the influence of the spring (19) until the bottom surface is completely separated from the sheet stock;
step four: and (3) taking down the finished sheet metal part (3) after the cylinder I (4) and the cylinder II (10) are retracted, and cleaning and warehousing the sheet metal part.
7. The sheet metal part stretching method according to claim 6, characterized in that: the pressing plate (16) is firstly contacted with the sheet stock to avoid the displacement of the sheet stock, and the adjusting rod (18) above the pressing plate (16) is driven by the downward movement of the movable die (1) to shrink inwards the buffer groove (21) and extrude the spring (19), so that the pressing plate (16) gradually increases the pressure on the sheet stock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110311093.XA CN113198920A (en) | 2021-03-24 | 2021-03-24 | Sheet metal part stretching die and sheet metal part stretching method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110311093.XA CN113198920A (en) | 2021-03-24 | 2021-03-24 | Sheet metal part stretching die and sheet metal part stretching method |
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| CN113198920A true CN113198920A (en) | 2021-08-03 |
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| CN202110311093.XA Pending CN113198920A (en) | 2021-03-24 | 2021-03-24 | Sheet metal part stretching die and sheet metal part stretching method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116689622A (en) * | 2023-08-02 | 2023-09-05 | 龙口通力汽车零部件制造有限公司 | Sheet metal part stretching die and sheet metal part stretching method |
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| CN116689622B (en) * | 2023-08-02 | 2023-10-24 | 龙口通力汽车零部件制造有限公司 | Sheet metal part stretching die and sheet metal part stretching method |
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