CN114798815B - Part sizing die - Google Patents
Part sizing die Download PDFInfo
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- CN114798815B CN114798815B CN202210630107.9A CN202210630107A CN114798815B CN 114798815 B CN114798815 B CN 114798815B CN 202210630107 A CN202210630107 A CN 202210630107A CN 114798815 B CN114798815 B CN 114798815B
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- die
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- water inlet
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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
- B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
- B21D1/06—Removing local distortions
- B21D1/08—Removing local distortions of hollow bodies made from sheet metal
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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
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
- Forging (AREA)
Abstract
The invention discloses a part shape correcting die, which comprises a lower die, wherein the lower die is arranged on a fixed seat and is provided with a water draining part; the upper die is arranged on the top press, the upper die is provided with an overflow part, the upper die corresponds to the lower die up and down, and a part cavity is formed between the bottom end of the upper die and the top end of the lower die; the left die is arranged on a left sliding block of the press, and one side of the left die, which is close to the part cavity, is matched with the part cavity; and the right die is arranged on a right sliding block of the press, one side, close to the part cavity, of the right die is matched with the part cavity, and the right die is communicated with a water inlet part. The upper die and the lower die are beneficial to extruding the part, the left die and the right die are utilized to seal the part, so that the inside of the part is a closed space, high-pressure liquid or high-pressure water is filled into the part through the water inlet part on the right die after the two ends of the part are sealed, and the part is corrected by utilizing the combined action of the pressure of the high-pressure liquid or the high-pressure water inside the part from inside to outside and the pressure of the upper die and the lower die from outside to inside.
Description
Technical Field
The invention belongs to the technical field of metal hollow member shape correction, and particularly relates to a part shape correction die.
Background
With the rapid development of aerospace, the demand for high-performance lightweight integral hollow members is increasing. However, the integral hollow member is difficult to manufacture due to the complex thin-wall special-shaped geometric characteristics, the process is complex, serious processing deformation is often generated, and the manufacturing precision is difficult to guarantee. Therefore, a special sizing process is often required.
Engineering generally improves the forming precision of the component by two methods of process compensation and deformation correction. The process compensation is to apply compensation quantity to the mould in the reverse direction of rebound deformation in advance, so that the shape of the workpiece after rebound is just matched with the design shape. However, the compensation control method is mainly used for fully knowing the material performance and the condition of a simple workpiece, and when the shape of a new material such as a high-strength plate, an aluminum alloy plate and the like or the workpiece is changed, the compensated data needs to be accumulated again, and when the shape of a complex structural member is changed, the deformation in the forming process is irregular, so that the formed shape cannot be corrected through compensation, and the requirement of improving the shape precision is met. Deformation correction refers to a process method for recovering the size and shape of a deformed part or blank to the design precision requirement through the action of external load or energy input on the premise of not removing or adding materials. In practical industrial production, the shaping is an effective method for improving the shaping precision of the component.
According to different working principles and applied load forms, the traditional correction methods are mainly divided into mechanical correction, heating correction and cold work correction, and the correction methods inevitably introduce surface tensile stress while correcting the workpiece, so that the service performance of the workpiece is seriously affected. Therefore, there is a need to design a part sizing die to solve the problems in the prior art.
Disclosure of Invention
The invention aims to provide a part shaping die, so as to solve the problems and achieve the purpose of improving the precision of the shaped part and the service performance of the part.
In order to achieve the above object, the present invention provides the following solutions: a part shaping mold comprises
The lower die is arranged on the fixed seat and is provided with a water draining part;
the upper die is arranged on the top press and provided with an overflow part, the upper die corresponds to the lower die up and down, and a part cavity is formed between the bottom end of the upper die and the top end of the lower die;
the left die is arranged on a left sliding block of the press, and one side, close to the part cavity, of the left die is matched with the part cavity;
the right die is arranged on a right sliding block of the press, one side, close to the part cavity, of the right die is matched with the part cavity, and the right die is communicated with a water inlet part.
Preferably, the lower die comprises a lower die base, the top end of the lower die base is fixedly connected with the bottom end of a lower die, a lower groove is formed in the top end of the lower die, the lower groove and the bottom end of the upper die form the part cavity, and the water draining part is formed on the lower groove.
Preferably, the upper die comprises an upper die base, an upper die top end is fixedly connected with the bottom end of the upper die base, an upper groove is formed in the bottom end of the upper die, the upper groove and the lower groove form the part cavity, and the overflow part is formed on the upper groove.
Preferably, the left die comprises a left pressing die, a left punch is fixedly connected to the middle part of one side of the left pressing die, which is far away from the left sliding block of the press, a plurality of limit posts are fixedly connected to one side of the left pressing die, which is far away from the left sliding block of the press, and the left punch is matched with the part cavity.
Preferably, the right die comprises a right pressing die, a right punch is fixedly connected to the middle part of one side of the right pressing die, which is far away from the right sliding block of the press, a plurality of limit posts are fixedly connected to one side of the right pressing die, which is far away from the right sliding block of the press, a water inlet hole is formed in the right punch, and the water inlet hole is communicated with the water inlet part.
Preferably, the drainage part comprises a plurality of drainage holes, the drainage holes are symmetrically arranged at two ends of the bottom of the lower groove, the bottom ends of the drainage holes are communicated with a drainage channel, and the drainage channel is communicated with the outside.
Preferably, the overflow part comprises two overflow holes, the two overflow holes are symmetrically arranged at two ends of the top of the upper groove, the top end of each overflow hole is communicated with an overflow channel, and the overflow channels are communicated with the outside.
Preferably, the water inlet part comprises a water inlet rod, one end of the water inlet rod is fixedly connected with the right punch, a low-pressure hole and a high-pressure hole are formed in the other end of the water inlet rod, a hollow channel is formed in the water inlet rod, and the low-pressure hole and the high-pressure hole are communicated with the water inlet hole through the hollow channel.
Preferably, both ends of the top of the lower die base are fixedly connected with lower V-shaped guide components, the bottoms of the left die and the right die are fixedly connected with upper V-shaped guide components, and the lower V-shaped guide components are matched with the upper V-shaped guide components.
The invention has the following technical effects:
the die is beneficial to the extrusion of the outer surface of the part by the upper die and the lower die, and simultaneously seals the two ends of the part by the left die and the right die, so that the inside of the part is a closed space, high-pressure liquid or high-pressure water is filled into the part through the water inlet part on the right die after the two ends of the part are sealed, and the part is shaped by the combined action of the pressure of the high-pressure liquid or the high-pressure water to the inside of the part from inside to outside and the pressure of the upper die and the lower die to the outer surface of the part from outside to inside.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is another schematic view of the overall structure of the present invention;
FIG. 3 is a schematic view of the internal part cavity structure of the present invention;
FIG. 4 is a schematic view of the right die structure of the present invention;
FIG. 5 is an isometric view of the lower and upper dies of the present invention;
FIG. 6 is another isometric view of the lower and upper dies of the present invention;
FIG. 7 is a schematic view of the bottom die base of the present invention;
FIG. 8 is a schematic view of the top mold base of the present invention;
FIG. 9 is a schematic view of a water inlet rod according to the present invention.
Wherein, 1, lower slide block; 2. a lower die base; 3. pressing down the die; 4. a lower groove; 5. an upper slider; 6. an upper die base; 7. performing upper pressing; 8. an upper groove; 9. a left slider; 10. a left press mold; 11. a left punch; 12. a limit column; 13. a right slider; 14. right pressing mold; 15. a water inlet rod; 16. a right punch; 17. a water inlet hole; 18. a lower V-shaped guide member; 19. an upper V-shaped guide member; 20. a low pressure orifice; 21. a high pressure orifice; 22. a drain hole; 23. a drainage channel; 24. an overflow hole; 25. an overflow channel; 26. a first lower receiving groove; 27. a first upper receiving groove; 28. a limiting block; 29. a second lower receiving groove; 30. a second upper receiving groove; 31. a guide post; 32. t-shaped groove.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
1-9, the invention discloses a part shaping mold, which comprises
The lower die is arranged on the fixed seat and is provided with a water draining part;
the upper die is arranged on the top press, the upper die is provided with an overflow part, the upper die corresponds to the lower die up and down, and a part cavity is formed between the bottom end of the upper die and the top end of the lower die;
the left die is arranged on a left sliding block of the press, and one side of the left die, which is close to the part cavity, is matched with the part cavity;
and the right die is arranged on a right sliding block of the press, one side, close to the part cavity, of the right die is matched with the part cavity, and the right die is communicated with a water inlet part.
The upper die and the lower die are arranged to extrude the outer surface of the part, the left die and the right die are utilized to seal the two ends of the part, the inside of the part is made into a closed space, high-pressure liquid or high-pressure water is filled into the part through the water inlet part on the right die after the two ends of the part are sealed, and the part is subjected to shape correction by utilizing the combined action of the pressure of the high-pressure liquid or the high-pressure water to the inside of the part from inside to outside and the pressure of the upper die and the lower die to the outer surface of the part from outside to inside.
Further optimizing scheme, the lower mould includes lower mould base 2, and lower mould base 2 top fixedly connected with lower moulding-die 3 bottom, lower recess 4 has been seted up on lower moulding-die 3 top, and lower recess 4 forms the spare part chamber with last mould bottom, and the drainage portion is seted up on lower recess 4.
The shape of the part cavity may vary depending on the shape of the part to be shaped.
Further, the lower slider 1 is detachably arranged at the bottom end of the lower die base 2, the lower slider 1 is detachably arranged on the fixing seat, two first lower containing grooves 26 which are parallel to each other are formed in the middle of the bottom end of the lower die 3, two second lower containing grooves 29 which are parallel to each other are formed in the middle of the bottom end of the lower die base 2, a plurality of limiting blocks 28 are fixedly connected in the second lower containing grooves 29, the top ends of the limiting blocks 28 are clamped into the first lower containing grooves 26, the positioning function is achieved on the lower die 3, and the lower die 3 and the lower die base 2 are prevented from sliding relatively.
Furthermore, the middle part of the top end of the lower slide block 1 is fixedly connected with a guide column 31, and the guide column 31 plays a role in guiding and positioning, so that the lower die base 2 can be accurately arranged at the central position of the lower slide block 1.
Further optimizing scheme, go up the mould and include last mould base 6, go up mould base 6 bottom fixedly connected with and go up moulding-die 7 top, go up the recess 8 has been seted up to moulding-die 7 bottom, and upper recess 8 forms the part chamber with lower recess 4, and the overflow part is seted up on upper recess 8.
Further, the top end of the upper die base 6 is detachably provided with an upper sliding block 5, the upper sliding block 5 is an upper sliding block of a press, the middle part of the top end of the upper pressing die 7 is provided with two first upper containing grooves 27 which are parallel to each other, the middle part of the bottom end of the upper die base 6 is provided with two second upper containing grooves 30 which are parallel to each other, a plurality of limiting blocks 28 are fixedly connected in the second upper containing grooves 30, the bottom ends of the limiting blocks 28 are clamped into the first upper containing grooves 27, the upper pressing die 7 is positioned, and the upper pressing die 7 and the upper die base 6 are prevented from sliding relatively.
Further optimizing scheme, left side mould includes left moulding-die 10, and left moulding-die 10 keeps away from the left slider of press one side middle part fixedly connected with left drift 11, and left moulding-die 10 keeps away from the left slider of press one side fixedly connected with a plurality of spacing posts 12, left drift 11 and part chamber looks adaptation.
The left slider 9 is detachably mounted on one side of the left pressing die 10, which is close to the left slider of the press, and the left slider 9 is detachably mounted on the left slider of the press.
Further optimizing scheme, right mould includes right moulding-die 14, and right moulding-die 14 is kept away from the right slider of press one side middle part fixedly connected with right drift 16, and right moulding-die 14 is kept away from the right slider of press one side fixedly connected with a plurality of spacing posts 12, has seted up water inlet 17 on the right drift 16, and water inlet 17 communicates with the portion of intaking.
The right slider 13 is detachably mounted on one side of the right pressing die 14, which is close to the right slider of the press, and the right slider 13 is detachably mounted on the right slider of the press.
In this embodiment, the number of the limit posts 12 on the left punch 11 and the right punch 16 is four, and the limit posts 12 are respectively located at four corners of the left punch 11 and the right punch 16, and the number of the limit posts 12 may be appropriately increased or decreased according to actual needs.
Further, aluminum backing plates are fixed between the left die 10 and the left punch 11 and between the right die 14 and the right punch 16, and the aluminum backing plates prevent the left die 10 and the right die 14 from damaging the left punch 11 and the right punch 16 by extrusion.
The limiting posts 12 limit the left and right dies 10, 14, and prevent the left and right dies 10, 14 from moving further after the left and right dies 10, 14 are moved into place, preventing the left and right dies 10, 14 from causing extrusion damage to the parts.
A plurality of T-shaped grooves 32 are respectively formed in the top end of the lower slide block 1, the bottom end of the upper slide block 5, the right side of the left slide block 9 and the left side of the right slide block 13, and locking bolts in the T-shaped grooves 32 respectively fixedly mount the lower die base 2, the upper die base 6, the left die 10 and the right die 14 on the lower slide block 1, the upper slide block 5, the left slide block 9 and the right slide block 13.
Further optimizing scheme, the drain portion includes a plurality of wash port 22, and a plurality of wash port 22 symmetry are seted up at the both ends of lower recess 4 bottom, and the bottom intercommunication of wash port 22 has drainage channel 23, and drainage channel 23 communicates with the external world.
Further optimizing scheme, the overflow part comprises two overflow holes 24, two overflow holes 24 are symmetrically arranged at two ends of the top of the upper groove 8, the top ends of the overflow holes 24 are communicated with an overflow channel 25, and the overflow channel 25 is communicated with the outside.
Further optimizing scheme, the water inlet part includes water inlet rod 15, water inlet rod 15 one end and right drift 16 fixed connection, and low pressure hole 20 and high pressure hole 21 have been seted up to water inlet rod 15 other end, and water inlet rod 15 inside has been seted up hollow channel, and low pressure hole 20, high pressure hole 21 pass through hollow channel and water inlet hole 17 intercommunication.
In a further optimized scheme, two ends of the top of the lower die base 2 are fixedly connected with lower V-shaped guide parts 18, the bottoms of the left die 10 and the right die 14 are fixedly connected with upper V-shaped guide parts 19, and the lower V-shaped guide parts 18 are matched with the upper V-shaped guide parts 19.
The working procedure of this embodiment is as follows:
firstly, a part to be calibrated is placed into a lower groove 4, then a top press is started to drive an upper press die 7 to move downwards until the upper press die 7 and a lower press die 3 are clamped, then pressure starts to be applied to squeeze the outer surface of the part, after the pressure reaches a set value, a left slide block of the press and a right slide block of the press are controlled to extend out simultaneously to drive a left press die 10 and a right press die 14 to approach the part, when the end surfaces of a left press head 11 and a right press head 16 pass through drain holes 22 at two ends of the lower groove 4 and do not reach overflow holes 24 at two ends of the upper groove 8, low-pressure water starts to be injected into the part through the low-pressure holes 20 on a water inlet rod 15, when water overflows in an overflow channel 25 in the process of injecting low-pressure water, at this time, the part is fully filled with water, at this time, the left press die 10 and the right press die 14 are controlled to continue to advance again, so that the end surfaces of the left press head 11 and the right press head 16 pass through the overflow holes 24 at two ends of the upper groove 8, then high-pressure water is injected into the part inside the part to reach a preset value, pressure maintaining is carried out, after the pressure maintaining is completed, and the left press die 10 and the right press head 16 are controlled to move back to pass through the drain holes 22 when the water outside when the water exceeds the left press head 11 and the drain holes 22.
In the invention, the water discharged after the completion of the shape correction can be collected in an external container, the next part can be continuously corrected by pressurizing the water in the container again, the water is recycled, the water resource can be saved, the pressurizing of the recycled water is the prior art, and the repeated description is omitted.
In the description of the present invention, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
The above embodiments are only illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solutions of the present invention should fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.
Claims (2)
1. The utility model provides a part correction mould which characterized in that includes
The lower die is arranged on the fixed seat and is provided with a water draining part;
the upper die is arranged on the top press and provided with an overflow part, the upper die corresponds to the lower die up and down, and a part cavity is formed between the bottom end of the upper die and the top end of the lower die;
the left die is arranged on a left sliding block of the press, and one side, close to the part cavity, of the left die is matched with the part cavity;
the right die is arranged on a right sliding block of the press, one side, close to the part cavity, of the right die is matched with the part cavity, and the right die is communicated with a water inlet part;
the lower die comprises a lower die base (2), the top end of the lower die base (2) is fixedly connected with the bottom end of a lower pressing die (3), a lower groove (4) is formed in the top end of the lower pressing die (3), the lower groove (4) and the bottom end of the upper die form the part cavity, and the water draining part is formed on the lower groove (4);
the upper die comprises an upper die base (6), the bottom end of the upper die base (6) is fixedly connected with the top end of an upper pressing die (7), an upper groove (8) is formed in the bottom end of the upper pressing die (7), the upper groove (8) and the lower groove (4) form the part cavity, and the overflow part is formed on the upper groove (8);
the left die comprises a left die (10), a left punch (11) is fixedly connected to the middle part of one side, far away from the left slider of the press, of the left die (10), a plurality of limit posts (12) are fixedly connected to one side, far away from the left slider of the press, of the left die (10), and the left punch (11) is matched with the part cavity;
the right die comprises a right die (14), a right punch (16) is fixedly connected to the middle part of one side, far away from the right slider of the press, of the right die (14), a plurality of limit posts (12) are fixedly connected to one side, far away from the right slider of the press, of the right die (14), a water inlet hole (17) is formed in the right punch (16), and the water inlet hole (17) is communicated with the water inlet part;
the drainage part comprises a plurality of drainage holes (22), the plurality of drainage holes (22) are symmetrically formed at two ends of the bottom of the lower groove (4), the bottom end of each drainage hole (22) is communicated with a drainage channel (23), and the drainage channels (23) are communicated with the outside;
the overflow part comprises two overflow holes (24), the two overflow holes (24) are symmetrically arranged at two ends of the top of the upper groove (8), the top end of each overflow hole (24) is communicated with an overflow channel (25), and the overflow channels (25) are communicated with the outside;
the water inlet part comprises a water inlet rod (15), one end of the water inlet rod (15) is fixedly connected with the right punch (16), a low-pressure hole (20) and a high-pressure hole (21) are formed in the other end of the water inlet rod (15), a hollow channel is formed in the water inlet rod (15), and the low-pressure hole (20) and the high-pressure hole (21) are communicated with the water inlet hole (17) through the hollow channel;
firstly, placing a part to be corrected into a lower groove (4), starting a top press to drive an upper press die (7) to move downwards until the upper press die (7) and a lower press die (3) are clamped, starting to apply pressure to squeeze the outer surface of the part, controlling a left press slide block and a right press slide block to extend out simultaneously after the pressure reaches a set value to drive a left press die (10) and a right press die (14) to approach the part, starting to inject low-pressure water into the part through a low-pressure hole (20) on a water inlet rod (15) when the end surfaces of a left punch (11) and a right punch (16) pass through drain holes (22) at two ends of the lower groove (4) and do not reach overflow holes (24) at two ends of the upper groove (8), when water overflows in the overflow channel (25) in the process of injecting low-pressure water, the inside of the part is filled with water, at the moment, the left pressing die (10) and the right pressing die (14) are controlled to continuously advance again, the end faces of the left punching head (11) and the right punching head (16) are led to pass through overflow holes (24) at two ends of the upper groove (8), a closed space is formed in the inside of the part, then high-pressure water is injected into the inside of the part through the high-pressure hole (21), after the pressure in the part reaches a preset value, pressure maintaining is carried out, after the pressure maintaining is finished, the left pressing die (10) and the right pressing die (14) are controlled to retreat, and when the end faces of the left punching head (11) and the right punching head (16) are retreated to pass through the drain hole (22), the water in the part is discharged to the outside through the water discharge hole (22) and the water discharge channel (23), and at the moment, the shape correction process of the part is completed.
2. The part sizing die according to claim 1, wherein two ends of the top of the lower die base (2) are fixedly connected with lower V-shaped guide members (18), the bottoms of the left die (10) and the right die (14) are fixedly connected with upper V-shaped guide members (19), and the lower V-shaped guide members (18) are matched with the upper V-shaped guide members (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210630107.9A CN114798815B (en) | 2022-06-06 | 2022-06-06 | Part sizing die |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210630107.9A CN114798815B (en) | 2022-06-06 | 2022-06-06 | Part sizing die |
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| CN114798815A CN114798815A (en) | 2022-07-29 |
| CN114798815B true CN114798815B (en) | 2023-08-22 |
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| CN115591976B (en) * | 2022-10-20 | 2023-09-26 | 东北林业大学 | Concave curved straight shape correcting device and method for multi-cavity thin-wall tube rib plate |
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