CN116786746A - Forging die for forging hammer to process flange - Google Patents
Forging die for forging hammer to process flange Download PDFInfo
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- CN116786746A CN116786746A CN202311093162.XA CN202311093162A CN116786746A CN 116786746 A CN116786746 A CN 116786746A CN 202311093162 A CN202311093162 A CN 202311093162A CN 116786746 A CN116786746 A CN 116786746A
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- 238000005242 forging Methods 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title description 5
- 238000004891 communication Methods 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 22
- 238000004519 manufacturing process Methods 0.000 abstract description 17
- 238000003466 welding Methods 0.000 description 19
- 229910000831 Steel Inorganic materials 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 230000007547 defect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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Abstract
The application relates to a forging die for processing a flange by a forging hammer, belonging to the technical field of dies for forging; the mold comprises an upper inner mold half which is of a semi-annular plate structure, wherein two upper inner mold halves are arranged; the concave surfaces of the two upper inner half molds are opposite to each other and are used for forming the flange neck part above the upper half part of the convex edge; the upper outer ring die is of an annular structure and sleeved outside the upper inner half die, and the lower surface of the upper outer ring die is coplanar with the lower surface of the upper inner half die; the upper surface of the upper outer ring die is provided with a disc part forming groove; the bottom of the disk part forming groove is coplanar with the upper surface of the upper inner half die, and the upper outer ring die is used for forming a flange part in a matched mode with the upper inner half die; the lower ring die is of an annular structure and is positioned below the upper inner half die and the upper outer ring die; the application is used for forming the lower half part of the convex edge and the flange neck part below the lower half part of the convex edge, and has the effect of improving the production efficiency.
Description
Technical Field
The application relates to the technical field of forging dies, in particular to a forging die for a forging hammer to process a flange.
Background
Flanges are used for connection between the pipe ends. During flange forging, heating a steel billet to a plastic state, transferring the steel billet into a forging die, forging the steel billet by using a forging hammer, and completing the plastic shaping of the steel billet; and after the steel billet is cooled and demoulded, forming a flange.
The prior Chinese patent with reference to publication number CN203817265U discloses a forging flange die, which comprises a die body, wherein a die cavity is formed in the die body in a hollowed-out manner, the die cavity comprises a large-caliber inner cavity and a small-caliber inner cavity which are communicated from top to bottom, the large-caliber inner cavity and the small-caliber inner cavity are coaxially arranged, an annular forging surface is formed between the large-caliber inner cavity and the small-caliber inner cavity, the forging surface comprises an inner ring positioned at the outer circumference of the small-caliber inner cavity and an outer ring positioned at the outer circumference of the large-caliber inner cavity, an edge groove is concavely formed at the outer ring of the die body corresponding to the large-caliber inner cavity, the edge groove is in a 45-degree angle, and the forging surface is obliquely arranged from one side of the inner ring to one side of the outer ring and is obliquely arranged to one side of the ground.
Aiming at the related technology, when the butt welding flange is forged, a convex edge is formed on the circumferential outer wall of one end of the neck part of the butt welding flange, which is away from the butt welding flange part; therefore, the circumferential outer wall of the flange needs to be cut to form a butt welding flange with a convex edge, and the defect of low production efficiency exists.
Disclosure of Invention
In order to solve the defect of low production efficiency, the application provides a forging die for a forging hammer to process a flange.
The application provides a forging die for processing a flange by a forging hammer, which adopts the following technical scheme: comprising the following steps: the upper inner half mould is of a semi-annular plate structure and is provided with two upper inner half moulds; the concave surfaces of the two upper inner half molds are opposite to each other and are used for forming the flange neck part above the upper half part of the convex edge; the upper outer ring die is of an annular structure and sleeved outside the upper inner half die, and the lower surface of the upper outer ring die is coplanar with the lower surface of the upper inner half die; the upper surface of the upper outer ring die is provided with a disc part forming groove; the bottom of the disk part forming groove is coplanar with the upper surface of the upper inner half die, and the upper outer ring die is used for forming a flange part in a matched mode with the upper inner half die; the lower ring die is of an annular structure and is positioned below the upper inner half die and the upper outer ring die; is used for forming the flange neck below the lower half of the convex edge.
By adopting the technical scheme, when in use, the lower ring die is placed on the bearing table, so that the lower surface of the lower ring die is abutted against the bearing table, at the moment, the upper outer ring die is placed above the lower ring die, the upper outer ring die and the lower ring die are adjusted to be coaxial, and then the two upper inner half dies are placed in the upper outer ring die; placing the heated steel billet into two upper inner half moulds, forging by a forging hammer, and forming a butt welding flange with a convex edge; the butt welding flange does not need to be cut, so that the effect of improving the production efficiency is achieved;
during demolding, the mold with the flange is overturned, at the moment, the upper surface of the upper outer ring mold is contacted with the bearing table, and the lower ring mold, the upper outer ring mold and the upper inner half mold are sequentially taken down, so that the butt welding flange is conveniently demolded, and the effect of improving the production efficiency while being convenient to use is achieved.
Preferably, the upper surface of the lower ring die is fixedly connected with a limit post, the lower surface of the upper outer ring die is provided with a limit groove, and the limit post is inserted in the limit groove in a sliding manner.
Through adopting above-mentioned technical scheme, when installing outer loop mould and lower loop mould, peg graft spacing post in the spacing inslot, when forging hammer forges the steel billet, spacing post has improved the connection stability between lower loop mould and the outer loop mould.
Preferably, the limiting groove is flaring.
Through adopting above-mentioned technical scheme, the lateral wall in flaring form spacing groove has the guide effect, and then when spacing post butt spacing inslot, can be with spacing post direction to spacing inslot, reached convenient to use's effect.
Preferably, the upper inner half mould convex surface is fixedly connected with a positioning sheet, the positioning sheet is of an arc plate-shaped structure, and the area of the positioning sheet convex surface is larger than that of the concave surface; the upper surface of the locating piece is flush with the upper surface of the upper inner half mould.
Through adopting above-mentioned technical scheme, when being connected last interior half mould and last outer loop mould, the spacer is convenient for be connected last interior half mould and last outer loop mould, goes up interior half mould and closely pastes outer loop mould when forging the flange, and then has improved the precision of ring flange portion.
Preferably, the upper outer ring die is provided with a plugging groove and a yielding groove; the abdication groove is a round groove and is arranged on the upper end surface of the upper outer ring die; the inserting groove is a rectangular groove, the opening direction is the same as the axial direction of the upper outer ring die, and the inserting groove is communicated with the abdicating groove; the lower ring die is provided with a communicating groove and a locking groove; the locking groove is a round groove and is arranged on the lower surface of the lower ring die; the communication groove is a rectangular groove, one end penetrating through the upper surface of the lower ring die is communicated with the inserting groove, and the other end is communicated with the locking groove; a locking piece is arranged between the upper outer ring mould and the lower ring mould, and comprises a locking rod, a rotating rod and a rotating disc; the rotating rod is vertically and fixedly connected to the central position of the locking rod in the length direction, and the rotating disc is vertically and fixedly connected to one end of the rotating rod, which is away from the locking rod; the locking rod penetrates through the inserting groove and the communicating groove to be inserted into the locking groove, and the rotary disc is positioned in the yielding groove.
By adopting the technical scheme, when the locking piece is used for locking the upper outer ring die and the lower ring die, the locking rod is inserted into the inserting groove and the communicating groove, when the locking rod is positioned in the locking groove, the turntable is embedded in the yielding groove, the turntable is rotated at the moment, the length direction of the locking rod is perpendicular to the length direction of the inserting groove, and the locking rod abuts against the lower ring die, so that the upper outer ring die and the lower ring die are locked; when the flange is forged, the possibility of separating the upper outer ring die from the lower ring die is reduced, and the production precision of the butt welded flange is improved.
When the demolding, the locking rod is rotated through the locking groove, so that the length direction of the locking rod is identical to the length direction of the inserting groove, and then the lower annular die, the upper outer annular die and the upper inner half die are sequentially demolded, thereby achieving the effect of improving the production efficiency while being convenient for workers to use.
Preferably, the locking lever is of cylindrical configuration.
Through adopting above-mentioned technical scheme, cylindric locking lever circumference lateral wall has the guide effect, and then the locking lever of being convenient for peg graft in the intercommunication inslot.
Preferably, both ends of the locking lever are pointed.
Through adopting above-mentioned technical scheme, when there is the clearance between last outer loop mould and the lower loop mould, the retaining lever of both ends pointed end form has the guide effect, and the last cell wall in locking groove of the outer wall butt locking groove of being convenient for of retaining lever circumference has simultaneously and compresses tightly the effect of going up outer loop mould and lower loop mould, and then has improved the precision of the protruding stupefied of butt welding flange, has reduced the possibility that needs to polish, and then has reached the effect that improves butt welding flange production precision and production efficiency.
Preferably, the clamping groove is formed in the circumferential side wall of the rotary table, the clamping piece is embedded in the upper outer ring die and comprises a clamping spring and a clamping ball, the clamping spring is connected with the clamping ball and the upper outer ring die, and the clamping ball is partially clamped in the clamping groove.
Through adopting above-mentioned technical scheme, when last outer loop mould and lower loop mould are in by retaining member locking state, card ball joint in the draw-in groove, and then reached the effect that improves retaining member stability in use.
In summary, the present application includes at least one of the following beneficial technical effects:
placing the lower ring die on a bearing table, enabling the lower surface of the lower ring die to be in butt joint with the bearing table, placing the upper outer ring die above the lower ring die at the moment, adjusting the upper outer ring die to be coaxial with the lower ring die, and placing two upper inner half dies in the upper outer ring die; placing the heated steel billet into two upper inner half moulds, forging by a forging hammer, and forming a butt welding flange with a convex edge; the butt welding flange does not need to be cut, so that the effect of improving the production efficiency is achieved; when demoulding, the mould with the flange is overturned, at the moment, the upper surface of the upper outer ring mould is contacted with the bearing table, and the lower ring mould, the upper outer ring mould and the upper inner half mould are sequentially taken down, so that the butt welding flange is conveniently demoulded, and the effects of being convenient to use and improving the production efficiency are achieved;
when the locking piece locks the upper outer ring die and the lower ring die, the locking rod is inserted into the inserting groove and the communicating groove, when the locking rod is positioned in the locking groove, the turntable is embedded in the abdicating groove, the turntable is rotated at the moment, the length direction of the locking rod is perpendicular to the length direction of the inserting groove, and the locking rod abuts against the lower ring die, so that the upper outer ring die and the lower ring die are locked; when the flange is forged, the possibility of separating the upper outer ring die from the lower ring die is reduced, and the production precision of the butt welded flange is improved;
when the upper outer ring die and the lower ring die are in a locked state by the locking piece, the clamping ball is clamped in the clamping groove, and therefore the effect of improving the use stability of the locking piece is achieved.
Drawings
FIG. 1 is a schematic overall structure of an embodiment of the present application;
FIG. 2 is a cross-sectional view showing a locking member;
fig. 3 is an enlarged partial schematic view of the portion a in fig. 2.
In the figure, 1, upper inner half mould; 2. an upper outer ring mold; 21. a tray forming groove; 22. a limit groove; 23. a plug-in groove; 24. a relief groove; 3. a lower ring mold; 31. a communication groove; 32. a locking groove; 4. a limit column; 5. a positioning sheet; 6. a locking member; 61. a locking lever; 62. a rotating rod; 63. a turntable; 631. a clamping groove; 7. a clamping piece; 71. a clamping spring; 72. and (5) clamping the ball.
Detailed Description
The application is described in further detail below with reference to fig. 1-3.
The embodiment of the application discloses a forging die for a forging hammer to process a flange.
Referring to fig. 1 and 2, a forging die for forging a hammer processing flange includes an upper inner half die 1, an upper outer ring die 2, and a lower ring die 3; the upper inner half mould 1 is of a semi-annular plate structure, two upper inner half moulds 1 are arranged, and the concave surfaces of the two upper inner half moulds 1 are opposite; when the concave surfaces of the two upper inner half molds 1 are opposite and the side walls are abutted, the two upper inner half molds 1 are enclosed into a ring shape; the upper inner half mould 1 is used for forming the flange neck above the upper half part of the convex edge.
Referring to fig. 1 and 2, the upper outer ring mold 2 is of an annular structure, the upper outer ring mold 2 is sleeved outside the upper inner half mold 1, and the lower surface of the upper outer ring mold 2 is coplanar with the lower surface of the upper inner half mold 1; the upper surface of the upper outer ring die 2 is provided with a disc part forming groove 21; the bottom of the disk portion forming groove 21 is coplanar with the upper surface of the upper inner half mold 1, and the upper outer ring mold 2 is used for forming a flange portion in cooperation with the upper inner half mold 1. The upper inner half die 1 is fixedly connected with a locating plate 5 on the convex surface, the locating plate 5 is of an arc plate-shaped structure, the convex surface area of the locating plate 5 is larger than the concave surface area, the upper surface of the locating plate 5 is flush with the upper surface of the upper inner half die 1, and the locating plate 5 is embedded in the upper inner half die 1. Specifically, when the billet is forged to be coplanar with the upper surface of the upper outer ring die 2, the upper surface of the upper inner die half 1 and the bottom of the disk portion forming groove 21 are formed into the lower end surface of the disk portion, and the depth of the disk portion forming groove 21 is the thickness of the butt welding flange portion.
Referring to fig. 1 and 2, the lower ring mold 3 is in an annular structure, and the lower ring mold 3 is positioned below the upper inner mold half 1 and the upper outer mold half 2, namely, the lower surface of the upper inner mold half 1 and the lower surface of the upper outer mold half 2 are both abutted with the upper surface of the lower ring mold 3; the lower ring mold 3 is used for forming the flange neck below the lower half part of the convex edge. The upper surface of the lower ring die 3 is fixedly connected with a limit post 4, the limit post 4 is of a cylindrical structure, and the limit post 4 is vertical to the lower ring die 3; the lower surface of the upper outer ring die 2 is provided with a limit groove 22, the limit groove 22 is in a flaring shape, and the limit post 4 is inserted into the limit groove 22 in a sliding manner.
When the butt welding flange is formed, the lower ring die 3 is placed on the bearing table, the lower surface of the lower ring die 3 is abutted against the bearing table, at the moment, the upper outer ring die 2 is placed above the lower ring die 3, and the upper outer ring die 2 and the lower ring die 3 are adjusted to be coaxial, so that the limit column 4 is inserted into the limit groove 22. Then two upper inner half molds 1 are placed in an upper outer ring mold 2; placing the heated steel billet into two upper inner half dies 1, forging by a forging hammer, and forming a butt welding flange with a convex edge; when the butt welding flange is formed, the die with the flange is turned over, at the moment, the upper surface of the upper outer ring die 2 is contacted with the bearing table, and the lower ring die 3, the upper outer ring die 2 and the upper inner half die 1 are sequentially taken down, so that the butt welding flange is conveniently demoulded, and the effects of being convenient to use and improving the production efficiency are achieved; meanwhile, butt welding flanges do not need to be cut, and the effect of improving production efficiency is achieved.
Referring to fig. 2 and 3, the upper outer ring mold 2 is provided with a plugging groove 23 and a yielding groove 24; the abdication groove 24 is a round groove and is arranged on the upper end surface of the upper outer ring die 2; the inserting groove 23 is a rectangular groove, the opening direction is the same as the axial direction of the upper outer ring die 2, and the inserting groove 23 is communicated with the yielding groove 24; the center of the length direction of the inserting groove 23 coincides with the axis of the circular groove. The lower ring die 3 is provided with a communicating groove 31 and a locking groove 32; the locking groove 32 is a round groove and is formed on the lower surface of the lower ring die 3; the communicating groove 31 is a rectangular groove, and penetrates through one end of the upper surface of the lower ring die 3 to be communicated with the inserting groove 23, and the other end is communicated with the locking groove 32.
Referring to fig. 2 and 3, a locker 6 is provided between the upper outer ring mold 2 and the lower ring mold 3, and the locker 6 includes a locker lever 61, a rotating lever 62 and a rotating disk 63; the locking lever 61 has a cylindrical structure, and both ends of the locking lever 61 are pointed. The rotating rod 62 is vertically and fixedly connected to the central position of the locking rod 61 in the length direction, and the rotating disc 63 is vertically and fixedly connected to one end of the rotating rod 62, which is away from the locking rod 61. The locking rod 61 is inserted into the locking groove 32 through the insertion groove 23 and the communication groove 31, and the turntable 63 is positioned in the yielding groove 24.
After the limit post 4 is inserted into the limit groove 22, when the locking piece 6 is used for locking the upper outer ring die 2 and the lower ring die 3, the locking rod 61 is inserted into the insertion groove 23 and the communication groove 31, when the locking rod 61 is positioned in the locking groove 32, the turntable 63 is embedded into the yielding groove 24, at the moment, the turntable 63 is rotated, the length direction of the locking rod 61 is vertical to the length direction of the insertion groove 23, the locking rod 61 abuts against the lower ring die 3, and then the upper outer ring die 2 and the lower ring die 3 are locked; when the flange is forged, the possibility of separating the upper outer ring die 2 from the lower ring die 3 is reduced, and the production precision of the butt welded flange is improved.
When the demolding is carried out, the locking rod 61 is rotated through the locking groove 32, so that the length direction of the locking rod 61 is identical to the length direction of the inserting groove 23, and then the lower annular mold 3, the upper outer annular mold 2 and the upper inner half mold 1 are sequentially demolded, thereby achieving the effect of improving the production efficiency while being convenient for workers to use.
Referring to fig. 2 and 3, a clamping groove 631 is formed in the circumferential side wall of the turntable 63, a clamping piece 7 is embedded in the upper outer ring mold 2, the clamping piece 7 comprises a clamping spring 71 and a clamping ball 72, the clamping spring 71 connects the clamping ball 72 with the upper outer ring mold 2, and part of the clamping ball 72 is clamped in the clamping groove 631. When the upper outer ring die 2 and the lower ring die 3 are in a state of being locked by the locking piece 6, the clamping ball is clamped in the clamping groove 631, so that the effect of improving the use stability of the locking piece 6 is achieved; when the locking member 6 needs to be unlocked, the locking rod 61 is rotated, and the turntable 63 pushes the clamping ball 72 to be separated from the clamping groove 631 under the transmission effect of the rotating rod 62, so that the locking member has the effect of being convenient for workers to use.
The implementation principle of the forging die for processing the flange by the forging hammer provided by the embodiment of the application is as follows: the limiting column 4 is inserted into the limiting groove 22, and then the upper inner half die 1 and the upper outer die 2 are clamped by the positioning sheet 5; at this time, the locking rod 61 is inserted into the insertion groove 23, and when the locking rod 61 passes through the insertion groove 23 and the communication groove 31, the turntable 63 is rotated to realize the connection between the upper outer ring mold 2 and the lower ring mold 3; after the billet is placed between the two upper inner half dies 1 for forging, the die is removed to form a butt welding flange with a convex edge, and the flange does not need to be cut, so that the effect of improving the production efficiency is achieved.
The embodiments of the present application are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in this way, therefore: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (8)
1. A forge forging die for forging hammer processing flange, its characterized in that: comprising the following steps:
the upper inner half mould (1) is of a semi-annular plate structure, and the upper inner half mould (1) is provided with two blocks; the concave surfaces of the two upper inner half molds (1) are opposite to each other and are used for forming the upper half part of the convex edge and the flange neck part above the upper half part of the convex edge;
the upper outer ring die (2) is of an annular structure and sleeved outside the upper inner half die (1), and the lower surface of the upper outer ring die (2) is coplanar with the lower surface of the upper inner half die (1); the upper surface of the upper outer ring die (2) is provided with a disc part forming groove (21); the bottom of the disc part forming groove (21) is coplanar with the upper surface of the upper inner half die (1), and the upper outer ring die (2) is used for forming a flange part in a matched mode with the upper inner half die (1);
the lower ring die (3) is of an annular structure and is positioned below the upper inner half die (1) and the upper outer ring die (2); is used for forming the flange neck below the lower half of the convex edge.
2. A forging die for forging a hammer-machined flange according to claim 1, wherein: the upper surface of the lower ring die (3) is fixedly connected with a limiting column (4), a limiting groove (22) is formed in the lower surface of the upper outer ring die (2), and the limiting column (4) is inserted into the limiting groove (22) in a sliding mode.
3. A forging die for forging a hammer-machined flange according to claim 2, wherein: the limiting groove (22) is flaring.
4. A forging die for forging a hammer-machined flange according to claim 1, wherein: the upper inner half die (1) is fixedly connected with a locating plate (5) in a convex surface mode, the locating plate (5) is of an arc-shaped plate structure, and the convex surface area of the locating plate (5) is larger than the concave surface area; the upper surface of the locating piece (5) is flush with the upper surface of the upper inner half die (1).
5. A forging die for forging a hammer-machined flange according to claim 1, wherein: the upper outer ring die (2) is provided with a splicing groove (23) and a yielding groove (24); the abdication groove (24) is a round groove and is arranged on the upper end surface of the upper outer ring die (2); the inserting groove (23) is a rectangular groove, the opening direction is the same as the axial direction of the upper outer ring die (2), and the inserting groove (23) is communicated with the yielding groove (24);
the lower ring die (3) is provided with a communication groove (31) and a locking groove (32); the locking groove (32) is a round groove and is formed in the lower surface of the lower ring die (3); the communication groove (31) is a rectangular groove, one end penetrating through the upper surface of the lower ring die (3) is communicated with the inserting groove (23), and the other end is communicated with the locking groove (32);
a locking piece (6) is arranged between the upper outer ring die (2) and the lower ring die (3), and the locking piece (6) comprises a locking rod (61), a rotating rod (62) and a rotating disc (63); the rotating rod (62) is vertically and fixedly connected to the central position of the locking rod (61) in the length direction, and the rotating disc (63) is vertically and fixedly connected to one end, deviating from the locking rod (61), of the rotating rod (62); the locking rod (61) passes through the inserting groove (23) and the communicating groove (31) to be inserted into the locking groove (32), and the rotary disc (63) is positioned in the yielding groove (24).
6. A forging die for forging a hammer-machined flange according to claim 5, wherein: the locking rod (61) is of a cylindrical structure.
7. A forging die for forging a hammer-machined flange according to claim 5, wherein: both ends of the locking rod (61) are pointed.
8. A forging die for forging a hammer-machined flange according to claim 5, wherein: clamping grooves (631) are formed in the circumferential side wall of the rotary table (63), clamping pieces (7) are embedded in the upper outer ring die (2), the clamping pieces (7) comprise clamping springs (71) and clamping balls (72), the clamping springs (71) are connected with the clamping balls (72) and the upper outer ring die (2), and the clamping balls (72) are partially clamped in the clamping grooves (631).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311093162.XA CN116786746A (en) | 2023-08-29 | 2023-08-29 | Forging die for forging hammer to process flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311093162.XA CN116786746A (en) | 2023-08-29 | 2023-08-29 | Forging die for forging hammer to process flange |
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| Publication Number | Publication Date |
|---|---|
| CN116786746A true CN116786746A (en) | 2023-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311093162.XA Pending CN116786746A (en) | 2023-08-29 | 2023-08-29 | Forging die for forging hammer to process flange |
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| CN (1) | CN116786746A (en) |
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Application publication date: 20230922 |
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