Forging dies for flange production

Abstract

The present invention relates to the technical field of flange production, and discloses a forging die for flange production, including a base, a connecting platform connected to the base, a forging machine connected to the connecting platform, a punch head connected to the lower end of the forging machine through the connecting platform, a placement column connected to the upper end of the base, a support column arranged above the placement column, a side block connected to the outer side of the placement column, a rotating shaft connected to the side block, a rotating frame rotatably connected to the rotating shaft, a pressing sheet connected to one end of the rotating frame, a toggle rod connected to the other end of the rotating frame, a limit column connected to the base, a spring block sleeved on the outer side of the limit column, and a reset spring connected between the lower end of the spring block and the base. The present invention utilizes the lifting and lowering of a push cylinder to change the position of the flange ring forging, ensures that the flange ring can be forged evenly, improves the flange production quality, and during forging, an operator can be in a safe position to observe the forging process, which greatly improves the safety of forging.

Description

Technical Field

[0001] The invention relates to the technical field of flange production, in particular to a forging die used for flange production. Background Art

[0002] Flange is also called flange flange or flange. Flange is a part that connects shafts to each other and is used to connect pipe ends. It is also used as a flange on the inlet and outlet of equipment to connect two equipment, such as reducer flange. Flange connection or flange joint refers to a detachable connection in which flange, gasket and bolts are connected to each other as a combined sealing structure.

[0003] When producing flanges, large-sized flanges require forging of flange materials, which includes forging steel into an annular structure and then placing the flange material on a horizontal cylinder for forging. This type of forging can increase the diameter of the annular material, but after each impact forging, the annular material needs to be rotated to ensure uniform forging. Since the flange material steel forging is in a high-temperature state, it can easily present a predetermined shape after forging. However, due to the high degree of exposure of the steel forging to the external environment, its outer surface will oxidize to form a brittle black shell. This shell also has a high temperature and can be easily separated from the high-temperature steel forging under the action of external force. Since the steel forging is accompanied by the impact of the stamping equipment, in order to ensure the structural stability of the steel forging during impact, the operator needs to hold tools to stabilize the steel forging during traditional forging. Therefore, the operator cannot be in a safe position to forge the steel forging, and the oxide shell on the outer surface of the steel forging is prone to splashing during impact, posing a safety hazard.

[0004] Based on this, a forging die for flange production is proposed. Summary of the invention

[0005] The purpose of the present invention is to solve the above-mentioned problem and to provide a forging die for flange production.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A forging die for flange production comprises a base, a connecting platform is connected to the base, a forging machine is connected to the connecting platform, a punch head is connected to the lower end of the forging machine through the connecting platform, a placement column is connected to the upper end of the base, a support column is arranged above the placement column, a side block is connected to the outer side of the placement column, a rotating shaft is connected to the side block, a rotating frame is rotatably connected to the rotating shaft, a pressing sheet is connected to one end of the rotating frame, and a toggle rod is connected to the other end of the rotating frame;

[0008] The base is connected to a limiting column, a spring block is sleeved on the outside of the limiting column, a reset spring is connected between the lower end of the spring block and the base, the upper end of the spring block is connected to a pushing cylinder, the reset spring and the pushing cylinder are both sleeved on the outside of the limiting column, the pushing cylinder is arranged obliquely below the supporting column, and the base is connected to a reset member for first driving the pushing cylinder to rise so that the flange ring sleeved on the supporting column is deflected, and then driving the pressing plate and the supporting column to abut against each other, thereby stabilizing the transmission mechanism of the supporting column.

[0009] Preferably, the outer side of the placement column is connected to a limiting block, an annular groove is opened in the middle of the support column, and the support column is arranged between the limiting blocks.

[0010] Preferably, the reset member includes an inclined block 2, a sliding rod is slidably connected to the spring block, one end of the sliding rod is connected to an inclined block 3, a connecting spring is connected between the inclined block 3 and the spring block, an inclined block 1 is arranged above the inclined block 3, and the inclined block 1 is connected to the base through a fixing frame.

[0011] Preferably, the transmission mechanism includes a transmission rod, a clamping plate is connected to the upper end of the base, an L-shaped groove is provided on the clamping plate, a driving member is connected to the transmission rod to drive the transmission rod to slide on the L-shaped groove, a lifting block is slidably connected to the clamping plate, the transmission rod is slidably connected to the lifting block, a toggle frame is connected to the lifting block, and the lifting block is fixedly connected to both ends of the connecting frame.

[0012] Preferably, a clamping bar is connected to the transmission rod, and two clamping bars are provided, and the two clamping bars are parallel to each other.

[0013] Preferably, the driving member comprises a telescopic cylinder, the telescopic end of the telescopic cylinder is sleeved on the transmission rod, the outer side of the telescopic cylinder is connected to a deflection shaft, a connecting port is opened on the base, and the deflection shaft is rotatably connected to the connecting port.

[0014] Preferably, the clamping plate is connected with a vertical bar, and the lifting block is slidably connected to the vertical bar.

[0015] Preferably, two ends of the transmission rod are fixedly connected with connecting blocks, the connecting blocks are connected with sliding bars, and the sliding bars are slidably connected to the lifting blocks.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0017] 1. The present application adopts a pushing cylinder structure and utilizes the lifting and lowering of the pushing cylinder to push the flange ring to rotate, thereby changing the forging position of the flange ring, ensuring that the flange ring can be forged evenly, and improving the flange production quality. By utilizing the driving of the pushing cylinder and the telescopic cylinder, the effect of automatically pushing the flange ring is achieved. During forging, the operator can be in a safe position to observe the forging process, which greatly improves the safety of forging.

[0018] 2. The present application adopts a pressing plate structure and sets a pressing plate to limit the support column structure, thereby ensuring that the support column will not move during forging. At the same time, after the telescopic cylinder is driven, the clamping strip structure will move to both sides of the flange ring to avoid the flange ring from shifting and causing the stamping structure to fall on the support column, thereby improving the accuracy of flange processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the overall structure of a forging die provided in an embodiment of the present invention is shown;

[0020] Figure 2 It shows a schematic structural diagram of a rotating shaft connection provided by an embodiment of the present invention;

[0021] Figure 3 It shows a schematic structural diagram of a transmission rod connection provided by an embodiment of the present invention;

[0022] Figure 4 A schematic diagram of an exploded structure of a sliding bar connection provided by an embodiment of the present invention is shown;

[0023] Figure 5 A schematic diagram of the exploded structure of a side view of a connection of a push cylinder provided according to an embodiment of the present invention is shown.

[0024] Legend:

[0025] 1. Base; 2. Connecting table; 3. Forging machine; 4. Clamping plate; 5. L-shaped groove; 6. Connecting port; 7. Telescopic cylinder; 8. Transmission rod; 9. Placement column; 10. Limit block; 11. Support column; 12. Ring groove; 13. Side block; 14. Rotating frame; 15. Pressing sheet; 16. Toggle rod; 17. Vertical bar; 18. Lifting block; 19. Slide bar; 20. Connecting block; 21. Rotating axis; 22. Deflection axis; 23. Clamping bar; 24. Toggle frame; 25. Connecting frame; 26. Fixed frame; 27. Oblique block one; 28. Push cylinder; 29. ​​Oblique block two; 30. Oblique block three; 31. Spring block; 32. Reset spring; 33. Limit column; 34. Slide bar; 35. Connecting spring. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-5 , the present invention provides a technical solution:

[0028] The forging die for flange production includes a base 1, a connecting platform 2 is connected to the base 1, a forging machine 3 is connected to the connecting platform 2, the lower end of the forging machine 3 passes through the connecting platform 2 and is connected to a punch head, the punch head is arranged directly above the support column 11, the upper end of the base 1 is connected to a placement column 9, a support column 11 is arranged above the placement column 9, the upper end of the placement column 9 is a groove structure, so as to ensure the stability of the support column 11 placed thereon, the outer side of the placement column 9 is connected to a side block 13, the side block 13 is vertically fixedly connected to the outer side of the placement column 9, the side block 13 is connected to a rotating shaft 21, and the rotating shaft 21 is vertically fixedly connected to the On the outside of the side block 13, a limiting disk is connected to one end of the rotating shaft 21 to improve the rotation stability of the rotating frame 14 connected thereon, the rotating frame 14 is rotatably connected to the rotating shaft 21, and a pressing sheet 15 is connected to one end of the rotating frame 14. One side of the pressing sheet 15 is in contact with one side of the clamping plate 4 in the initial state, thereby preventing the rotating frame 14 from excessively deflecting. A toggle rod 16 is connected to the other end of the rotating frame 14, wherein the weight of one end of the toggle rod 16 of the rotating frame 14 is greater than that of one end of the pressing sheet 15 to ensure that in the initial state, the pressing sheet 15 structure can stably contact one side of the clamping plate 4 to avoid interfering with the placement and removal of the support column 11;

[0029] The base 1 is connected to a limit column 33, which is vertically fixed to the base 1. A spring block 31 is sleeved on the outer side of the limit column 33, and a return spring 32 is connected between the lower end of the spring block 31 and the base 1. In the initial state, the return spring 32 structure is compressed, and the upper end of the spring block 31 is connected to a push cylinder 28, wherein the push cylinder 28 cannot be set directly below the support column 11 or at a position too far away from the vertical surface of the support column 11. When it is set on a vertical surface too far away from the support column 11, when the push cylinder 28 moves up in height, it is easy to slip between the structures, and it is not easy to drive the flange ring to deflect. The return spring 32 and the push cylinder 28 are both sleeved on the outer side of the limit column 33, and the push cylinder 28 is set obliquely below the support column 11. The base 1 is connected with a reset member for first driving the push cylinder 28 to rise, so that the flange ring sleeved on the support column 11 is deflected, and then drives the pressing plate 15 to abut against the support column 11 to stabilize the transmission mechanism of the support column 11.

[0030] Specifically, Figure 1As shown, a limiting block 10 is connected to the outer side of the placement column 9, an annular groove 12 is opened in the middle of the support column 11, and the support column 11 is arranged between the limiting blocks 10. The limiting blocks 10 have an L-shaped structure. The limiting blocks 10 can be used to limit the two ends of the support column 11 to avoid structural deviation. At the same time, the setting of the annular groove 12 is conducive to placing the flange ring on the support column 11, avoiding the flange ring from excessively deviating from the middle position of the support column 11, thereby improving the forging accuracy of the punch head and ensuring that the punch head can fall accurately on the flange ring.

[0031] Specifically, Figure 4 and Figure 5 As shown, the reset member includes an inclined block 29, which is fixedly connected to the middle position of the connecting frame 25. The inclined surface structure of the inclined block 29 is set obliquely downward, with the inclined surface facing the direction of the limiting column 33, and the inclined block 29 structure is in a horizontal state. A slide rod 34 is slidably connected to the spring block 31. There are two slide rods 34, and the two slide rods 34 are symmetrically slidably connected to the spring block 31. One end of the slide rod 34 is connected to an inclined block 30, and the inclined block 30 structure is set obliquely upward, with the inclined surface facing the clamping strip 23. A connecting spring is connected between the inclined block 30 and the spring block 31. 35, the connecting spring 35 plays the role of driving the inclined block three 30 to reset. The initial state of the reset of the inclined block three 30 is set above the inclined block two 29. The inclined block one 27 is set above the inclined block three 30. The inclined block one 27 is connected to the base 1 through the fixing frame 26. The inclined block one 27 is a fixed structure, and its inclined surface is set obliquely downward. The direction of the inclined surface is the same as that of the inclined block two 29. The moving mode of the inclined block two 29 is vertical lifting, and the moving mode of the inclined block three 30 is both horizontal and vertical. The inclined block two 29 and the inclined block one 27 are staggered with each other.

[0032] Specifically, Figure 3 and Figure 4 As shown, the transmission mechanism includes a transmission rod 8, which is slidably connected to the L-shaped groove 5. The sliding connection between the transmission rod 8 and the L-shaped groove 5 is limited by the connecting block 20. The upper end of the base 1 is connected to a clamping plate 4, and the clamping plate 4 is provided with an L-shaped groove 5. The initial state is that the transmission rod 8 is at the lowest point of the vertical part of the L-shaped groove 5. When the telescopic cylinder 7 is extended to the maximum distance, the transmission rod 8 slides to one end of the horizontal part of the L-shaped groove 5. The transmission rod 8 is connected to a driving member for driving the transmission rod 8 to slide on the L-shaped groove 5. The clamping plate 4 is slidably connected to a lifting block 18, and the transmission rod 8 is slidably connected to the lifting block 18. The lifting block 18 is connected to a toggle frame 24, and the lifting block 18 is fixedly connected to both ends of the connecting frame 25.

[0033] Specifically, Figure 3As shown, a clamping bar 23 is connected to the transmission rod 8. Two clamping bars 23 are provided. The two clamping bars 23 are parallel to each other. When the transmission rod 8 moves, the clamping bar 23 can be driven to move. The function of the clamping bar 23 is to stabilize the structural position of the flange ring during forging and prevent the flange ring from sliding on the support column 11.

[0034] Specifically, Figure 3 As shown, the driving member includes a telescopic cylinder 7, the telescopic end of the telescopic cylinder 7 is sleeved on the transmission rod 8, the connection position between the telescopic end of the telescopic cylinder 7 and the transmission rod 8 is set between the clamping strips 23, the outer side of the telescopic cylinder 7 is connected to the deflection shaft 22, the base 1 is provided with a connecting port 6, the deflection shaft 22 is rotatably connected to the connecting port 6, and the telescopic cylinder 7 is set between the connecting ports 6.

[0035] Specifically, Figure 1 As shown, the clamping plate 4 is connected with a vertical bar 17, and the lifting block 18 is slidably connected to the vertical bar 17. Two vertical bars 17 parallel to each other are fixedly connected to the clamping plate 4. A groove structure is provided on one side of the lifting block 18, and the groove and the vertical bar 17 fit together. The vertical bar 17 structure improves the stability of the lifting block 18 structure when moving up and down.

[0036] Specifically, Figure 4 As shown, connecting blocks 20 are fixedly connected at both ends of the transmission rod 8, and a slide bar 19 is connected to the connecting block 20. The slide bar 19 is slidably connected to the lifting block 18, and a groove structure is provided on the lifting block 18 for the slide bar 19 to slide thereon, thereby improving the sliding stability of the slide bar 19.

[0037] In summary, the forging die for flange production provided in this embodiment needs to be processed into a disc-shaped structure in advance when the flange raw material steel forging needs to be forged, and then a through circular groove structure is processed at the center of the circle on the disc. The operator needs to put the circular ring-shaped raw material on the support column 11 and ensure that the raw material falls on the annular groove 12, wherein the annular groove 12 is provided to improve the position limit of the raw material, so as to avoid the deviation of the overall structure when the raw material and the support column 11 are subsequently lifted, thereby interfering with the transfer operation;

[0038] The operator needs to transfer the support column 11 with the raw material to the placement column 9 through the equipment, wherein the upper end of the placement column 9 is a concave groove structure to improve the stability of the support column 11 placed thereon, and the limit blocks 10 set at both ends of the support column 11 are used to limit the two ends of the support column 11 to avoid the structure of the support column 11 from shifting during forging. At this time, the operator only needs to stay away from the forging die and remotely control the operation of the telescopic cylinder 7 and the forging machine 3. The forging die can improve the operating safety of the operator, reduce manpower consumption, and simplify the forging process;

[0039] The operator needs to start the telescopic cylinder 7, and use the telescopic end of the telescopic cylinder 7 to push the transmission rod 8 to slide in the L-shaped groove 5. In the initial stage, the transmission rod 8 moves vertically. As the transmission rod 8 rises in height, it can drive the lifting block 18 to rise in height. At this time, the lifting block 18 slides and rises on the vertical bar 17. Since the lifting block 18 is fixedly connected to the inclined block 29 through the connecting frame 25, that is, the inclined block 29 rises in height synchronously, the upper end of the inclined block 29 is in contact with the lower surface of the inclined block 30, thereby driving the inclined block 30 to rise in height. Since the inclined block 30 is movably connected to the spring block 31, the spring block 31 can drive the push tube 28 to rise in height. Since the push tube 28 is arranged at an oblique position below the flange ring, it can contact the flange ring when the push tube 28 moves up in height. Due to the pre-forged The outer surface of the flange ring has an uneven structure, so that when the push cylinder 28 contacts the flange ring, it can push the flange ring to deflect at a certain angle. As the push cylinder 28 continues to move upward, the inclined block 3 30 is limited by the inclined surface of the inclined block 1 27, so that the inclined block 3 30 structure and the spring block 31 structure are close to each other. At this time, the connecting spring 35 structure is compressed, and the inclined block 3 30 structure and the inclined block 2 29 are separated from each other until the inclined block 3 30 and the inclined block 2 29 are completely separated. At this time, the spring block 31 structure is pulled by the reset spring 32 to restore to the initial position. At this time, the push cylinder 28 completes the effect of pushing the flange ring to deflect, thereby changing the part to be forged on the flange ring to be moved to the bottom of the punch head connected to the lower end of the forging machine 3. Such reciprocating can achieve a 360° forging effect on the flange ring.

[0040] When the height of the inclined block 29 rises, the height of the toggle frame 24 connected to the lifting block 18 also rises. Initially, the lifting block 18 can push the toggle rod 16 to rise at one end, and then the toggle frame 24 structure can push the toggle rod 16 to rise. At this time, the rotating frame 14 structure connected to the toggle rod 16 structure rotates around the rotating shaft 21. At this time, when the transmission rod 8 moves to the highest point of the vertical part of the L-shaped groove 5, the toggle frame 24 can push the toggle rod 16 to rise to the highest point. At this time, the pressing piece 15 connected to the other end of the rotating frame 14 can press the two ends of the support column 11 to improve the stability of the support column 11 placed on the placement column 9;

[0041] When the telescopic cylinder 7 continues to extend, the telescopic end of the telescopic cylinder 7 can push the transmission rod 8 into the horizontal part of the L-shaped groove 5. At this time, the slide bar 19 structure begins to slide on the lifting block 18, and the height of the lifting block 18 remains unchanged. Therefore, the toggle frame 24 and the second inclined block 29 are both immobile at this time. The toggle frame 24 is arranged at an upper position at one end of the lifting block 18, so it will not interfere with the sliding of the slide bar 19 in the lifting block 18.

[0042] As the transmission rod 8 continues to slide on the L-shaped groove 5, the clamping strip 23 moves horizontally toward the flange ring structure until the clamping strip 23 structure is set on both sides of the flange ring. At this time, one end of the clamping strip 23 is displaced above the support column 11, and the inner side of the clamping strip 23 does not contact the flange ring, and the upper surface of the clamping strip 23 is lower than the height of the highest point of the flange ring. At this time, the clamping strip 23 can further limit the structure of the flange ring during forging on the basis of the flange ring limit of the ring groove 12, thereby improving the structural stability of the flange ring during forging. At this time, the operator needs to control the operation of the forging machine 3 to set the support column 11. The flange on the support column 11 is impact forged. After the forging of this position is completed, the operator needs to control the forging machine 3 to stop running and control the telescopic cylinder 7 to start shrinking. The structure of the forging die begins to reset. Since the spring block 31 has been moved and reset before forging, the structure of the spring block 31 remains unchanged at this time. At this time, since one end of the inclined block 30 is provided with an inclined surface inclined upward, when the inclined block 29 is reset, the structure of the inclined block 30 will not block the inclined block 29, so that the inclined block 29 can be reset, thereby ensuring that the overall structure of the forging die is reset;

[0043] After the telescopic cylinder 7 is extended and retracted one way, the corresponding structure on the flange ring can be forged. Therefore, as the telescopic cylinder 7 reciprocates, a 360° forging operation on the flange ring can be achieved. The operator can perform the forging operation at a position far away from the forging die, which greatly improves the safety of the forging operator, improves the stability of the flange ring structure during the forging process, and simplifies the forging operation process.

[0044] The above description of the embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A forging die for flange production, comprising a base (1), characterized in that: The base (1) is connected to a connecting platform (2), the connecting platform (2) is connected to a forging machine (3), the lower end of the forging machine (3) passes through the connecting platform (2) and is connected to a punching head, the upper end of the base (1) is connected to a placement column (9), a support column (11) is arranged above the placement column (9), the outer side of the placement column (9) is connected to a side block (13), the side block (13) is connected to a rotating shaft (21), the rotating shaft (21) is rotatably connected to a rotating frame (14), one end of the rotating frame (14) is connected to a pressing sheet (15), and the other end of the rotating frame (14) is connected to a toggle rod (16); The base (1) is connected to a limit column (33), a spring block (31) is sleeved on the outer side of the limit column (33), a reset spring (32) is connected between the lower end of the spring block (31) and the base (1), and a push cylinder (28) is connected to the upper end of the spring block (31), the reset spring (32) and the push cylinder (28) are both sleeved on the outer side of the limit column (33), the push cylinder (28) is arranged obliquely below the support column (11), and the base (1) is connected to a reset member for first driving the push cylinder (28) to rise, so that the flange ring sleeved on the support column (11) is deflected, and then drives the pressing plate (15) and the support column (11) to abut against each other, thereby stabilizing the transmission mechanism of the support column (11); The reset member comprises a second inclined block (29), a sliding rod (34) is slidably connected to the spring block (31), one end of the sliding rod (34) is connected to a third inclined block (30), a connecting spring (35) is connected between the third inclined block (30) and the spring block (31), a first inclined block (27) is arranged above the third inclined block (30), and the first inclined block (27) is connected to the base (1) through a fixing frame (26); The transmission mechanism comprises a transmission rod (8), the upper end of the base (1) is connected to a clamping plate (4), an L-shaped groove (5) is provided on the clamping plate (4), a driving member for driving the transmission rod (8) to slide on the L-shaped groove (5) is connected to the transmission rod (8), a lifting block (18) is slidably connected to the clamping plate (4), the transmission rod (8) is slidably connected to the lifting block (18), a toggle frame (24) is connected to the lifting block (18), and the lifting block (18) is fixedly connected to both ends of a connecting frame (25); The transmission rod (8) is connected with a clamping bar (23), two clamping bars (23) are provided, and the two clamping bars (23) are parallel to each other.

2. The forging die for flange production according to claim 1, characterized in that: The outer side of the placement column (9) is connected to a limiting block (10), an annular groove (12) is provided in the middle of the support column (11), and the support column (11) is arranged between the limiting blocks (10).

3. The forging die for flange production according to claim 1, characterized in that: The driving member comprises a telescopic cylinder (7), the telescopic end of the telescopic cylinder (7) is sleeved on a transmission rod (8), the outer side of the telescopic cylinder (7) is connected to a deflection shaft (22), a connecting port (6) is provided on the base (1), and the deflection shaft (22) is rotatably connected to the connecting port (6).

4. The forging die for flange production according to claim 1, characterized in that: The clamping plate (4) is connected to a vertical bar (17), and the lifting block (18) is slidably connected to the vertical bar (17).

5. The forging die for flange production according to claim 1, characterized in that: The two ends of the transmission rod (8) are fixedly connected with connection blocks (20), the connection block (20) is connected with a slide bar (19), and the slide bar (19) is slidably connected to the lifting block (18).

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