Hanging ring forging die

Abstract

The invention relates to a lifting ring forging die, and belongs to the field of forging dies, the lifting ring forging die comprises an upper die and a lower die which are distributed up and down, the upper die comprises an upper die base and an upper lining, and the upper lining is detachably and fixedly arranged on the upper die base; the lower die comprises a lower die base and a lower lining, and the lower lining is detachably and fixedly arranged on the lower die base. A first through hole is formed in the upper die base, the two ends of the first through hole are located on the same side of the upper die base, a second through hole is formed in the lower die base, the two ends of the second through hole are located on the same side of the lower die base, and one end of the first through hole is connected with one end of the second through hole through a connecting pipe. When the mold is replaced, the upper lining is taken down from the upper mold base, the lower lining is taken down from the lower mold base, the corresponding upper lining and the corresponding lower lining are selected according to the model of the lifting ring needing to be machined and fixedly installed in the first groove and the second groove respectively, the whole upper mold and the whole lower mold do not need to be replaced, and the mold replacement convenience is improved.

Description

Technical Field

[0001] The invention relates to a suspension ring forging die and belongs to the field of forging dies. Background Art

[0002] The ring forging die is a die used in the forging process, mainly used to manufacture ring parts. A ring usually refers to a metal part with a ring, which is often used for lifting or connecting equipment, such as lifting slings, hooks, chains, etc. of helicopters and cranes. The ring forging die is designed according to the shape and size requirements of the ring. The metal is heated through the forging process and then placed in the die for processing, and finally a sling part with high strength and die is obtained.

[0003] The Chinese invention patent with the publication number CN218775594U discloses a constant temperature hot forging die, including a die base, a cushion pad, a moving handle, an operating panel, a guide rod, a lifting punch, and a hydraulic cylinder. The die base is a four-sided rectangular structure with a rubber cushion bonded to the bottom. A welded moving handle is installed in the middle of the front end of the die base, an extended operating panel is installed in the middle of the right end surface of the die base, and a symmetrically distributed guide rod is installed at the top of the die base. A sliding lifting punch is installed on the inner side of the top of the guide rod, and a lifting hydraulic cylinder is installed in the middle of the top of the lifting punch and fixed by bolts. The invention effectively avoids damage to the heating device during the stamping process by the die through a rational design, and at the same time, the die and the punch can be heated and insulated in both directions through a plug-in power supply device, which effectively guarantees the quality of hot forging. However, when the existing technology is applied to the hot forging of the lifting ring, it can only be applied to one type of lifting ring. When the lifting ring model is changed, the entire die needs to be replaced, which is cumbersome.

[0004] Therefore, a ring forging die is needed to improve the convenience of die changing. Summary of the invention

[0005] The technical problem to be solved by the present invention is: in order to overcome the deficiencies of the prior art, a ring forging die with improved die changing convenience is provided.

[0006] The technical solution adopted by the present invention to solve the above problem is: a ring forging die, comprising an upper die and a lower die distributed up and down, the upper die comprising an upper die seat and an upper bushing, the upper bushing being detachably fixedly arranged on the upper die seat; the lower die comprising a lower die seat and a lower bushing, the lower bushing being detachably fixedly arranged on the lower die seat; The upper die base is provided with a first through hole, both ends of the first through hole are located on the same side of the upper die base, the lower die base is provided with a second through hole, both ends of the second through hole are located on the same side of the lower die base, one end of the first through hole is connected to one end of the second through hole through a connecting pipe, an input pipe is fixedly inserted into the other end of the first through hole, the input pipe is connected to a water source, an output pipe is fixedly inserted into the other end of the second through hole, a first one-way valve is provided on the input pipe, a second one-way valve is provided on the output pipe, a slide groove is provided on one side of the upper die base provided with the first through hole, and the slide groove is connected to the first through hole through a connecting groove; A moving rod is connected to the upper mold base, one end of the moving rod is inserted into a slide groove, and the other end of the moving rod is located on a side of the upper mold base where a first through hole is provided. The moving rod is slidably and sealedly connected to the slide groove, and a transmission mechanism is provided on the moving rod. The transmission mechanism controls the moving rod to extend or retract into the slide groove by rising or falling of the upper mold base.

[0007] Preferably, a first groove is provided at the bottom of the upper die seat, and the upper bushing is located in the first groove; a second groove is provided at the top of the lower die seat, and the lower bushing is located in the second groove.

[0008] Preferably, the bottom of the upper bushing and the bottom of the upper die base are in the same plane, and the top of the lower bushing and the top of the lower die base are in the same plane.

[0009] Preferably, a plurality of guide rods are vertically fixedly provided on the upper die base, and a plurality of guide holes are provided on the lower die base, and the plurality of guide holes correspond to and match the plurality of guide rods one by one.

[0010] Preferably, the specific number of the guide rods is four, and the four guide rods are distributed in a matrix.

[0011] Preferably, locking pieces are used to achieve locking between the upper bushing and the upper die base, and between the lower bushing and the lower die base.

[0012] Preferably, the transmission mechanism includes a movable plate and a fixed block, the movable plate is fixedly arranged at the outer end of the movable rod, the fixed block is fixedly arranged on the lower mold seat, the fixed block is located between the movable plate and the fixed block, the side of the fixed block close to the movable plate is an inclined surface, the distance between the inclined surface and the movable plate gradually decreases from top to bottom, the movable plate is connected with a roller on the side close to the fixed block, the wheel surface of the roller abuts against the inclined surface, a positioning rod is movably provided on the movable plate, the positioning rod is parallel to the movable rod, the positioning rod is fixedly arranged on the upper mold seat, a spring is sleeved on the positioning rod, the spring is located between the movable plate and the upper mold seat, the two ends of the spring are respectively connected to the upper mold seat and the movable plate, and the spring is in a stretched state.

[0013] Preferably, the movable plate is provided with a strip-shaped through groove, which is parallel to the up and down directions. A connecting rod is movably provided in the through groove, which is parallel to the movable rod. One end of the connecting rod is connected to the roller, and the connecting rod is locked with the movable plate by a locking nut.

[0014] Preferably, the diameter of the connecting rod is equal to the width of the through slot.

[0015] Preferably, the first through hole and the second through hole are both U-shaped.

[0016] Compared with the prior art, the advantages of the present invention are: The present invention provides a lifting ring forging die. When the lifting ring model needs to be changed, the upper bushing is removed from the upper die seat, and the lower bushing is removed from the lower die seat. The corresponding upper bushing and lower bushing are selected according to the required processing lifting ring model and are fixedly installed in the first groove and the second groove respectively. There is no need to replace the overall upper die and the lower die, which improves the convenience of die change. In addition, the water intermittently flows in one direction to absorb the heat on the upper die and the lower die, so as to cool the upper die and the lower die and extend the service life of the upper die and the lower die. Secondly, by adjusting the height of the connection between the roller and the movable plate, the amount of water intermittently transported from the input pipe to the first through hole can be adjusted, and the cooling temperature can be adjusted by adjusting the water inlet, so that the cooling temperature can be accurately controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A first stereoscopic view of a lifting ring forging die of the present invention; Figure 2 A second stereoscopic view of a lifting ring forging die of the present invention; Figure 3 It is a front view of a lifting ring forging die of the present invention; Figure 4 A top view of a lifting ring forging die of the present invention; Figure 5 It is a left side view of a hanging ring forging die of the present invention; Figure 6 for Figure 5 AA direction cross-sectional view; Figure 7 for Figure 5 BB direction cross-sectional view; Figure 8 It is a schematic diagram of the connection structure between the transmission mechanism and the moving rod; Fig. 9 It is a structural schematic diagram of the upper die; Fig.10 It is a structural schematic diagram of the upper die base; Fig.11 It is a structural schematic diagram of the lower mold; Fig.12It is a structural schematic diagram of the lower die base; Fig.13 It is a schematic diagram of the enclosed structure of the upper bushing and the lower bushing.

[0018] in: Upper die 1, lower die 2; Upper die base 11, upper bushing 12, first groove 13, guide rod 14; Lower die base 21, lower bushing 22, second groove 23, guide hole 24; A first through hole 101, a second through hole 102, a connecting pipe 103, an input pipe 104, an output pipe 105, a first one-way valve 106, a second one-way valve 107, a slide groove 108, a connecting groove 109, a moving rod 110, and a transmission mechanism 111; Movable plate 1111 , fixed block 1112 , inclined surface 1113 , roller 1114 , positioning rod 1115 , spring 1116 , through slot 1117 , connecting rod 1118 , locking nut 1119 . DETAILED DESCRIPTION

[0019] like Figure 1-13 As shown, a ring forging die in this embodiment includes an upper die 1 and a lower die 2 distributed up and down; The upper die 1 comprises an upper die base 11 and an upper bushing 12. The upper bushing 12 is detachably fixedly arranged on the upper die base 11. A first groove 13 is arranged at the bottom of the upper die base 11. The upper bushing 12 is located in the first groove 13. The bottom of the upper bushing 12 is in the same plane as the bottom of the upper die base 11. The lower die 2 comprises a lower die base 21 and a lower bushing 22. The lower bushing 22 is detachably fixed on the lower die base 21. A second groove 23 is provided on the top of the lower die base 21. The lower bushing 22 is located in the second groove 23. The top of the lower bushing 22 and the top of the lower die base 21 are in the same plane. During operation, the lower die base 21 is fixed to a working position such as a workbench, and the upper die base 11 is connected to a lifting system such as an oil cylinder. The upper die base 11 is driven to rise by the lifting system to form a gap between the upper die base 11 and the lower die base 21, and then the heated metal is placed in the lower bushing 22. At this time, the upper die base 11 is lowered and fitted with the lower die base 21 by the lifting system, that is, the upper bushing 12 and the lower bushing 22 are surrounded. In fact, the upper bushing 12 and the lower bushing 22 after being surrounded form a cavity whose shape matches the ring. The heated metal is located in this cavity, that is, the heated metal is hot forged into a ring. After the hot forging is completed, the upper die base 11 is raised again by the lifting system, and the ring is taken out. This cycle is repeated to continue the hot forging action of the next ring. Here, when the lifting ring model needs to be changed, the upper bushing 12 is removed from the upper die seat 11, and the lower bushing 22 is removed from the lower die seat 21. According to the required lifting ring model, the corresponding upper bushing 12 and lower bushing 22 are selected and fixedly installed in the first groove 13 and the second groove 23 respectively. Compared with the prior art, there is no need to replace the overall upper die 1 and the lower die 2, which improves the convenience of die change. The upper die base 11 is vertically fixed with a plurality of guide rods 14, the specific number of the guide rods 14 is four, and the four guide rods 14 are distributed in a matrix. The lower die base 21 is provided with a plurality of guide holes 24, and the plurality of guide holes 24 correspond to and match the plurality of guide rods 14 one by one. When the upper die base 11 and the lower die base 21 are fitted together, the guide rods 14 are inserted into the guide holes 24, and the cooperation between the guide rods 14 and the guide holes 24 plays a guiding effect. Of course, the guide rods 14 can also be provided on the lower die base 21, and the guide holes 24 are correspondingly provided on the upper die base 11; The upper bushing 12 and the upper die base 11 as well as the lower bushing 22 and the lower die base 21 are locked by a locking member, wherein the locking member may be at least one of a locking screw, a locking pin, a locking bolt, etc., and the bushing only needs to be detachably fixed in the first groove 13 and the lower bushing 22 can be detachably fixed in the second groove 23; The upper die base 11 is provided with a first through hole 101, both ends of the first through hole 101 are located on the same side of the upper die base 11, and the first through hole 101 is U-shaped. The lower die base 21 is provided with a second through hole 102, both ends of the second through hole 102 are located on the same side of the lower die base 21, and the second through hole 102 is U-shaped. One end of the first through hole 101 is connected to one end of the second through hole 102 through a connecting pipe 103, an input pipe 104 is fixedly inserted into the other end of the first through hole 101, and an output pipe 105 is fixedly inserted into the other end of the second through hole 102, a first one-way valve 106 is provided on the input pipe 104, and a second one-way valve 107 is provided on the output pipe 105. A slide groove 108 is provided on one side of the upper die base 11 where the first through hole 101 is provided, and the slide groove 108 is connected to the first through hole 101 through a connecting groove 109; The upper die base 11 is connected with a moving rod 110, one end of which is inserted into the slide groove 108, and the other end of which is located at a side of the upper die base 11 provided with the first through hole 101, and the moving rod 110 is slidably and sealedly connected with the slide groove 108, and a transmission mechanism 111 is provided on the moving rod 110, and the transmission mechanism 111 controls the moving rod 110 to extend or retract into the slide groove 108 by the rise or fall of the upper die base 11. Specifically, when the upper die base 11 falls, the transmission mechanism 111 controls the moving rod 110 to extend out of the slide groove 108, and when the upper die base 11 rises, the transmission mechanism 111 controls the moving rod 110 to retract into the slide groove 108; During the working process, cooling water is injected into the input pipe 104, the output pipe 105, the connecting pipe 103, the first through hole 101, the connecting pipe 103, the second through hole 102, the slide groove 108 and the connecting groove 109 in advance, and the input pipe 104 is connected to the water source. When the upper mold base 11 descends, the transmission mechanism 111 controls the moving rod 110 to extend out of the slide groove 108, so that the pressure in the first through hole 101 and the second through hole 102 is reduced. At this time, the one-way action of the second one-way valve 107 prevents the water in the output pipe 105 from passing through. The second one-way valve 107 delivers water to the second through hole 102, and can only deliver water from the water source from the input pipe 104 to the first through hole 101. The water in the first through hole 101 is delivered from the connecting groove 109 to the slide groove 108. When the upper mold base 11 rises, the transmission mechanism 111 controls the moving rod 110 to extend and retract into the slide groove 108, thereby increasing the pressure in the first through hole 101 and the second through hole 102. At this time, the one-way action of the first one-way valve 106 prevents the water in the input pipe 104 from being discharged through the first one-way valve 106. , and only the water in the second through hole 102 can be discharged from the output pipe 105, while the water in the chute 108 is transported from the connecting groove 109 to the first through hole 101 and then from the connecting pipe 103 to the second through hole 102, and the water absorbs the heat of the upper die seat 11 and the lower die seat 21, that is, the cooling of the upper die 1 and the lower die 2 is realized. When performing multiple ring hot forging actions, the upper die seat 11 reciprocates and rises, that is, the water in the input pipe 104, the first through hole 101, the connecting pipe 103, the second through hole 102 and the output pipe 105 is intermittently and individually The water that has absorbed the heat flows to the surface of the mold, so that the water is discharged to ensure the cooling effect. Here, the excessively high temperature of the hot forging mold will produce a variety of adverse effects. First, it will affect the hardness and strength of the mold. Excessive temperature may cause the mold material to temper, resulting in a decrease in hardness, and the mold is more likely to deform. Secondly, it will reduce the wear resistance of the mold, which will cause the surface of the mold in contact with the high-temperature blank to be worn faster during the forging process, shortening the service life of the mold. In this way, the service life of the ring forging die can be extended by cooling the upper die 1 and the lower die 2. The transmission mechanism 111 includes a moving plate 1111 and a fixed block 1112. The moving plate 1111 is fixedly arranged at the outer end of the moving rod 110, and the fixed block 1112 is fixedly arranged on the lower die base 21. The fixed block 1112 is located between the moving plate 1111 and the fixed block 1112. The side of the fixed block 1112 close to the moving plate 1111 is an inclined surface 1113. The distance between the inclined surface 1113 and the moving plate 1111 from top to bottom is gradually increased. The movable plate 1111 is connected to a roller 1114 on one side close to the fixed block 1112. The wheel surface of the roller 1114 abuts against the inclined surface 1113. A positioning rod 1115 is movably provided on the movable plate 1111. The positioning rod 1115 is parallel to the movable rod 110. The positioning rod 1115 is fixedly arranged on the upper die seat 11. A spring 1116 is sleeved on the positioning rod 1115. The spring 1116 is located on the movable plate 1111. The two ends of the spring 1116 are connected to the upper die base 11 and the moving plate 1111 respectively. The spring 1116 is in a stretched state. When the upper die base 11 rises, the elastic action of the spring 1116 causes the moving plate 1111 to move on the positioning rod 1115 toward the upper die base 11, and causes the roller 1114 to roll on the inclined surface 1113. The movement of the moving plate 1111 drives the moving rod 110 to move synchronously, and as the roller 1114 rolls on the inclined surface 1113, the moving plate 1111 moves synchronously with the moving rod 110. After the rise of 1114 and the separation of the inclined surface 1113, the movable plate 1111 stops moving after the roller 1114 and the upper die holder 11. When the upper die holder 11 descends, the roller 1114 contacts the inclined surface 1113 and rolls on the inclined surface 1113. As the roller 1114 descends on the inclined surface 1113, the roller 1114 pushes the movable plate 1111 to move away from the upper die holder 11, and the spring 1116 is stretched. The movable plate 1111 is provided with a strip-shaped through groove 1117, the through groove 1117 is parallel to the up and down direction, a connecting rod 1118 is movably inserted in the through groove 1117, the diameter of the connecting rod 1118 is equal to the groove width of the through groove 1117, the connecting rod 1118 is parallel to the movable rod 110, one end of the connecting rod 1118 is connected to the roller 1114, and the connecting rod 1118 is connected to the movable plate 1111 through a locking nut 1119. Now lock it. When it is necessary to adjust the amount of water delivered from the input pipe 104 to the first through hole 101 each time according to the temperature, loosen the locking nut 1119 to make the connecting rod 1118 move up and down in the through groove 1117. After the position adjustment, tighten the locking nut 1119. In this way, the reciprocating extension and contraction distance of the moving rod 110 in the slide groove 108 can be adjusted, that is, the amount of water intermittently delivered from the input pipe 104 to the first through hole 101 can be adjusted, and the cooling temperature can be adjusted by adjusting the water intake.

[0020] In addition to the above embodiments, the present invention also includes other implementation modes. Any technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.

Claims

1. A ring forging die, comprising an upper die (1) and a lower die (2) arranged in an upper and lower position, characterized in that: The upper die (1) comprises an upper die base (11) and an upper bushing (12); the upper bushing (12) is detachably fixedly arranged on the upper die base (11); The lower die (2) comprises a lower die base (21) and a lower bushing (22), wherein the lower bushing (22) is detachably fixedly arranged on the lower die base (21); The upper die base (11) is provided with a first through hole (101), and both ends of the first through hole (101) are located on the same side of the upper die base (11); the lower die base (21) is provided with a second through hole (102), and both ends of the second through hole (102) are located on the same side of the lower die base (21); one end of the first through hole (101) is connected to one end of the second through hole (102) via a connecting tube (103), and an input tube (102) is fixedly inserted into the other end of the first through hole (101). 104), the input pipe (104) is connected to a water source, an output pipe (105) is fixedly inserted into the other end of the second through hole (102), a first one-way valve (106) is provided on the input pipe (104), a second one-way valve (107) is provided on the output pipe (105), and a slide groove (108) is provided on one side of the upper mold base (11) where the first through hole (101) is provided, and the slide groove (108) is connected to the first through hole (101) via a connecting groove (109); A moving rod (110) is connected to the upper die base (11), one end of the moving rod (110) is inserted into the slide groove (108), and the other end of the moving rod (110) is located on a side of the upper die base (11) provided with a first through hole (101). The moving rod (110) is slidably and sealedly connected to the slide groove (108), and a transmission mechanism (111) is provided on the moving rod (110). The transmission mechanism (111) controls the moving rod (110) to extend or retract into the slide groove (108) by rising or falling of the upper die base (11).

2. A ring forging die according to claim 1, characterized in that: The bottom of the upper die seat (11) is provided with a first groove (13), the upper bushing (12) is located in the first groove (13), the top of the lower die seat (21) is provided with a second groove (23), and the lower bushing (22) is located in the second groove (23).

3. The ring forging die according to claim 1, characterized in that: The bottom of the upper bushing (12) and the bottom of the upper die seat (11) are in the same plane, and the top of the lower bushing (22) and the top of the lower die seat (21) are in the same plane.

4. The ring forging die according to claim 1, characterized in that: A plurality of guide rods (14) are vertically fixedly penetrated on the upper die seat (11), and a plurality of guide holes (24) are provided on the lower die seat (21), and the plurality of guide holes (24) correspond to and match the plurality of guide rods (14) one by one.

5. A hanging ring forging die according to claim 4, characterized in that: The specific number of the guide rods (14) is four, and the four guide rods (14) are distributed in a matrix.

6. The ring forging die according to claim 1, characterized in that: Locking pieces are used to achieve locking between the upper bushing (12) and the upper die seat (11) as well as between the lower bushing (22) and the lower die seat (21).

7. The ring forging die according to claim 1, characterized in that: The transmission mechanism (111) comprises a moving plate (1111) and a fixed block (1112); the moving plate (1111) is fixedly arranged on the outer end of the moving rod (110); the fixed block (1112) is fixedly arranged on the lower die base (21); the fixed block (1112) is located between the moving plate (1111) and the fixed block (1112); a side of the fixed block (1112) close to the moving plate (1111) is an inclined surface (1113); the distance between the inclined surface (1113) and the moving plate (1111) gradually decreases from top to bottom; and a side of the moving plate (1111) close to the fixed block (1112) is connected to the fixed block (1112). A roller (1114) is provided, the wheel surface of the roller (1114) abuts against the inclined surface (1113), a positioning rod (1115) is movably provided on the movable plate (1111), the positioning rod (1115) is parallel to the movable rod (110), the positioning rod (1115) is fixedly arranged on the upper die seat (11), a spring (1116) is sleeved on the positioning rod (1115), the spring (1116) is located between the movable plate (1111) and the upper die seat (11), the two ends of the spring (1116) are respectively connected to the upper die seat (11) and the movable plate (1111), and the spring (1116) is in a stretched state.

8. The ring forging die according to claim 7, characterized in that: The movable plate (1111) is provided with a strip-shaped through groove (1117), the through groove (1117) is parallel to the up and down direction, a connecting rod (1118) is movably inserted into the through groove (1117), the connecting rod (1118) is parallel to the movable rod (110), one end of the connecting rod (1118) is connected to the roller (1114), and the connecting rod (1118) is locked with the movable plate (1111) via a locking nut (1119).

9. A lifting ring forging die according to claim 8, characterized in that: The diameter of the connecting rod (1118) is equal to the width of the through groove (1117).

10. The ring forging die according to claim 1, characterized in that: The first through hole (101) and the second through hole (102) are both U-shaped.

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