Conical barrel forging device

Abstract

The utility model discloses a conical barrel forging device and relates to the technical field of forging processing, the conical barrel forging device comprises a base, a support and a mounting seat, both sides of the top of the base are connected with a limiting frame and a supporting seat, the interior of the supporting seat is connected with a limiting plate, and a pull rope is connected between the limiting plate and the mounting seat. A forging die is connected to the middle of the top of the base. Through the arrangement of the forging die, the limiting frame, the limiting plate, the pull rope, the pulley and the supporting seat, when the forging die needs to be replaced, the mounting seat and the hammer head move upwards to the top point, the pull rope is straightened and pulls the limiting plate to enable the limiting plate to rotate upwards at the moment, and then the forging die can be taken out forwards to be replaced; compared with manual limiting such as bolts, workers do not need to make contact with limiting manually, operation is easier and more convenient, compared with automatic limiting, operation is conducted through an actuator of the forging device, an actuator and a transmission structure do not need to be additionally arranged, and cost is reduced; and the forging die is conveniently and quickly replaced.

Description

Technical Field

[0001] This utility model relates to the field of forging technology, specifically to a conical cylinder forging device. Background Technology

[0002] Forged conical cylinders, with their excellent properties of high strength, fatigue resistance and impact resistance, are widely used in heavy industry fields such as pipe reducers and crusher cone sleeves, as well as precision manufacturing fields. The forging of conical cylinders usually involves first forging a cylindrical blank into a cone-shaped blank with an internal hole to form a rough blank. Then, a secondary precision forging is performed using a structure such as a hammer, die core, and lower die to form a conical cylinder blank. After finishing processes such as cutting, grinding, and polishing, the production is completed.

[0003] Existing forging die lower molds typically employ bolt fastening, pneumatic / hydraulic / electric limiters, or direct placement. While bolt fastening allows for quick release with a wrench, it still requires manual operation of the limiter structure. Automatic limiters eliminate the need for manual operation but require additional actuators, increasing costs. Customization for features such as high-temperature resistance and dustproofing further increases initial investment and maintenance costs. Direct placement suffers from poor stability, with the lower mold prone to shifting, necessitating repositioning via robotic arms, forklifts, or manual intervention by workers. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a conical cylinder forging device to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a conical cylinder forging device, comprising a base, a bracket, and a mounting base. The top two sides of the base are connected to a limit frame and a support base, and the support base is internally connected to a limit plate. A pull rope is connected between the limit plate and the mounting base. A forging die is connected to the middle of the top of the base, and top flanges are provided on both sides of the top of the forging die. A protective cover is connected to one side of the bracket, and a pulley is connected inside the protective cover.

[0006] By adopting the above technical solution, when replacement is needed, the operator controls the hydraulic cylinder to move the mounting base and hammer head to the top. At this point, the pull rope is taut. The protective cover shields the contact surface between the pulley and the pull rope, preventing oxides from splashing and adhering directly to the pulley during forging. This reduces wear on the pull rope and pulley, extending their service life. After the pull rope is taut, the limiting plate is pulled, causing it to rotate upwards. The forging die can then be removed forward for replacement. Furthermore, the rotation angle of the limiting plate after the pull rope pulls it is much greater than that of the forging die. The angle from which the forging die passes underneath is such that even if the pull rope loosens over time, the angle at which the limiting plate rotates upwards will still allow the forging die to pass underneath. When the angle at which the limiting plate rotates upwards is small, the limiting plate can be lifted upwards by the top plate to allow the forging die to pass underneath, thus extending the service life of the pull rope. During forging, the mounting base and hammer will not be at their apex position, causing the pull rope to loosen and the limiting plate to rotate downwards by gravity. At this time, the limiting bracket prevents the forging die from jumping upwards and falling off, while the limiting plate prevents the forging die from horizontal displacement and falling off.

[0007] Furthermore, the cross-section of the limiting frame is in the shape of a "7", and the two limiting frames are mirror images of each other.

[0008] By adopting the above technical solution, the shape of the limiting frame combined with the shape of the forging die can effectively prevent the forging die from jumping upwards and falling off.

[0009] Furthermore, the forging die has an inverted "U" shaped cross section, and the forging die is detached and connected to the limiting frame by sliding.

[0010] By adopting the above technical solution, after the limiting plate rotates upward, the operator can slide the forging mold forward, thereby removing the forging mold for replacement.

[0011] Furthermore, the limiting plate is rotatably connected to the support base, and the limiting plate abuts against the forging mold and the top plate respectively.

[0012] By adopting the above technical solution, the limiting plate prevents the forging die from falling off due to horizontal displacement. When the upward rotation angle of the limiting plate is too small, the limiting plate can be lifted upward by the top plate so that the forging die can pass under it.

[0013] Furthermore, the pull rope is in contact with the pulley, and the pulley is rotatably connected to the protective cover.

[0014] By adopting the above technical solution, the direction of force transmission of the pulley is changed by the pulley, so that most of the pulley area can be kept away from the hammer and the blank, thereby improving safety. The protective cover can block the contact surface between the pulley and the pulley, preventing oxides from splashing and adhering directly to the pulley during forging, thereby reducing the wear of the pulley and the pulley and extending the service life of the pulley and the pulley.

[0015] Furthermore, the base has brackets connected to both sides of its top, and a top plate is connected to the top of the brackets. A hydraulic cylinder is installed on the top of the top plate, and a mounting base is connected to the output end of the hydraulic cylinder. A hammer is connected to the bottom of the mounting base.

[0016] By adopting the above technical solution, workers use pliers, robotic arms and other instruments to clamp the annular blank and place it on top of the forging die. Then, the output end of the hydraulic cylinder drives the mounting base and hammer to move up and down continuously. In conjunction with the workers adjusting the angle and position of the annular blank using instruments, forging dies with different opening sizes can be changed continuously. Through the cooperation of multiple workers, the annular blank is stretched and forged into a cone-shaped tube.

[0017] Furthermore, the hammerhead is located directly above the forging die.

[0018] By adopting the above technical solution, the output end of the hydraulic cylinder drives the mounting base and the hammer to move up and down continuously, and works with the forging die to forge the blank.

[0019] Furthermore, the pull rope, pulley, protective cover, top plate, and support base are all provided in two sets, and the two sets of pull rope, pulley, protective cover, top plate, and support base are mirror images of each other.

[0020] By adopting the above technical solution and setting up two sets of pull ropes, pulleys, protective covers, top slopes and support seats, the forging die can be replaced from either the front or the rear of the device.

[0021] Furthermore, the pull rope is made of Incoloy 800HT steel wire or Haynes 230 steel wire.

[0022] By adopting the above technical solution, the cost of Incoloy 800HT is relatively low compared to other high-temperature resistant metals. It can withstand temperatures of 1,000 degrees Celsius. Although the tensile strength is low, it is still sufficient to pull up the limit plate. If the working environment is harsh, Haynes 230 can be selected. Although the cost is higher, it has better thermal fatigue resistance and is suitable for long-term high-temperature vibration environments.

[0023] Furthermore, the pulley and protective cover are made of 310S stainless steel, and the pulley has undergone nitriding treatment.

[0024] By adopting the above technical solutions, 310S stainless steel material has the highest cost performance among high-temperature resistant metals, can withstand high temperatures of 1,100 degrees Celsius, and its surface hardness increases after nitriding treatment, effectively avoiding sputtering damage.

[0025] In summary, the present invention has the following main advantages:

[0026] 1. This utility model, through the setting of forging mold, limiting frame, limiting plate, pull rope, pulley and support base, allows for quick and easy replacement of forging molds when replacement is needed. The mounting base and hammer head move to their highest point, at which point the pull rope taut and pulls the limiting plate, causing it to rotate upwards. The forging mold can then be removed for replacement. Compared to manual limiting mechanisms such as bolts, this design eliminates the need for manual contact, simplifying operation. Compared to automatic limiting mechanisms, it relies on the forging device's own actuator, eliminating the need for additional actuators and transmission structures, thus reducing costs. Compared to direct placement, it offers better stability and prevents the mold from slipping off the base. During forging, the mounting base and hammer head are not at their highest point, allowing the pull rope to slacken and gravity to rotate the limiting plate downwards. The limiting frame prevents the forging mold from jumping upwards and falling off, while the limiting plate prevents it from shifting horizontally and falling off. This facilitates quick and easy replacement of forging molds.

[0027] 2. This utility model utilizes a pull rope and a top plate. After the pull rope pulls the limiting plate, the rotation angle of the limiting plate is much greater than the angle at which the forging die can pass underneath. Therefore, even if the pull rope loosens after prolonged use and the upward rotation angle of the limiting plate decreases, the forging die can still pass underneath. When the upward rotation angle of the limiting plate is too small, the top plate can lift the limiting plate upward to facilitate the passage of the forging die underneath, thus extending the service life of the pull rope. This increases the service life, extends the replacement interval of the pull rope, and reduces replacement costs.

[0028] 3. By setting up a protective cover, this utility model can shield the contact surface between the pulley and the rope, preventing oxides from splashing and adhering directly to the pulley during forging, thereby reducing wear on the rope and pulley and extending their service life; further extending the service life of the structure. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of this utility model when it is replaced;

[0030] Figure 2 This is a schematic diagram of the structure during the forging process of this utility model;

[0031] Figure 3 For the present utility model Figure 2 Enlarged view of the structure at point A in the image;

[0032] Figure 4 This is a cross-sectional structural diagram of the present invention;

[0033] Figure 5 This is a schematic diagram of the forging die structure of this utility model.

[0034] In the diagram: 1. Base; 2. Bracket; 3. Top plate; 4. Hydraulic cylinder; 5. Mounting seat; 6. Hammer head; 7. Forging die; 8. Limiting frame; 9. Limiting plate; 10. Pull rope; 11. Pulley; 12. Protective cover; 13. Top plate; 14. Support seat. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0036] The embodiments of this utility model will be described below based on its overall structure.

[0037] Example 1:

[0038] A conical cylinder forging device, such as Figures 1-5As shown, the system includes a base 1, a bracket 2, and a mounting base 5. Limiting frames 8 and support seats 14 are connected to both sides of the top of the base 1. The limiting frames 8 have a "7"-shaped cross-section, and the two limiting frames 8 are mirror-distributed. A limiting plate 9 is connected inside the support seat 14, and the limiting plate 9 is rotatably connected to the support seat 14. A pull rope 10 connects the limiting plate 9 to the mounting base 5. A forging die 7 is connected to the center of the top of the base 1. The forging die 7 has an inverted "U"-shaped cross-section and is detached from the limiting frames 8 by sliding. The forging mold 7 has top flanges 13 on both sides. Limiting plates 9 abut against the forging mold 7 and the top flanges 13 respectively. A protective cover 12 is connected to one side of the bracket 2. A pulley 11 is connected inside the protective cover 12. A pull rope 10 contacts the pulley 11, and the pulley 11 is rotatably connected to the protective cover 12. When replacement is needed, the operator controls the hydraulic cylinder 4 to move the mounting base 5 and the hammer head 6 to the top. At this time, the pull rope 10 is taut, and the protective cover 12 can block the contact surface between the pulley 11 and the pull rope 10. To prevent oxides from splashing and adhering directly to the pulley 11 during forging, thus reducing wear on the pull rope 10 and pulley 11 and extending their service life, the pull rope 10 is taut and pulls the limiting plate 9, causing the limiting plate 9 to rotate upwards. Then, the forging die 7 can be removed and replaced. Furthermore, after the pull rope 10 pulls the limiting plate 9, the rotation angle of the limiting plate 9 is much greater than the angle sufficient for the forging die 7 to pass underneath it. Therefore, even if the pull rope 10 becomes slightly loose after prolonged use, the upward rotation of the limiting plate 9 will still allow it to function properly. The reduced angle also allows the forging die 7 to pass under it. When the upward rotation angle of the limiting plate 9 is small, the top plate 13 can lift the limiting plate 9 upward so that the forging die 7 can pass under it, extending the service life of the pull rope 10. During forging, the mounting base 5 and the hammer head 6 will not be at the top position, so that the pull rope 10 is relaxed and the limiting plate 9 rotates downward by gravity. At this time, the limiting frame 8 prevents the forging die 7 from jumping upward and falling off, while the limiting plate 9 prevents the forging die 7 from horizontal displacement and falling off.

[0039] See Figures 1-4 In the above embodiment, brackets 2 are connected to both sides of the top of the base 1, and a top plate 3 is connected to the top of the brackets 2. A hydraulic cylinder 4 is installed on the top of the top plate 3. The output end of the hydraulic cylinder 4 is connected to a mounting seat 5, and a hammer head 6 is connected to the bottom of the mounting seat 5. The hammer head 6 is located directly above the forging mold 7. The operator uses pliers, a robotic arm, or other instruments to clamp the annular blank and place it on the top of the forging mold 7. Then, the output end of the hydraulic cylinder 4 drives the mounting seat 5 and the hammer head 6 to move up and down continuously. The operator adjusts the angle and position of the annular blank using instruments. During this process, forging molds 7 with different opening sizes can be continuously changed. Through the cooperation of multiple operators, the annular blank is stretched and forged into a cone-shaped form.

[0040] Example 2:

[0041] Based on the above embodiment one, the following settings are now made to facilitate disassembly and assembly.

[0042] See Figures 1-4 In the above embodiment, two sets of pull rope 10, pulley 11, protective cover 12, top sill 13 and support base 14 are provided. The two sets of pull rope 10, pulley 11, protective cover 12, top sill 13 and support base 14 are mirror images of each other. By providing two sets of pull rope 10, pulley 11, protective cover 12, top sill 13 and support base 14, the forging die 7 can be replaced from the front of the device or from the rear of the device.

[0043] Example 3:

[0044] Based on the above embodiment 1, in order to avoid the pull rope 10 and pulley 11 being affected by high temperature, the following settings are now adopted.

[0045] See Figures 1-4 In the above embodiments, the pull rope 10 is made of Incoloy 800HT steel wire or Haynes 230 steel wire. Incoloy 800HT has a relatively low cost compared to other high-temperature resistant metals and can withstand temperatures of 1,000 degrees Celsius. Although the pulling force is low, it is sufficient to pull up the limit plate 9. If the working environment is harsh, Haynes 230 can be used. Although the cost is higher, it has better thermal fatigue resistance and is suitable for long-term high-temperature vibration environments. The pulley 11 and the protective cover 12 are made of 310S stainless steel. The pulley 11 is treated with nitriding. 310S stainless steel is the most cost-effective among other high-temperature resistant metals and can withstand temperatures of 1,100 degrees Celsius. After nitriding, the surface hardness is increased, which effectively avoids splash damage.

[0046] The implementation principle of this utility model is as follows: First, the operator uses pliers, a robotic arm, or other instruments to clamp the annular blank and place it on top of the forging mold 7. Then, the output end of the hydraulic cylinder 4 drives the mounting base 5 and the hammer head 6 to move up and down continuously. The operator adjusts the angle and position of the annular blank using instruments. During this process, forging molds 7 with different opening sizes can be continuously changed. Through the cooperation of multiple operators, the annular blank is stretched and forged into a cone-shaped form. After the first forging is completed, the operator sends the cone-shaped blank to another forging device for a second forging. The cavity of the mold in the other forging device is frustum-shaped. A conical blank is placed horizontally into a mold, with the smaller diameter end facing down. Then, a core is placed at the top through-hole of the conical blank before forging. This process involves two steps: first, the outer wall of the conical blank is subjected to force and fits snugly against the mold cavity, transforming it into a frustum-shaped blank with a more uniform surface texture; second, the core compresses the top through-hole, forging it into a frustum shape or expanding its diameter. After forging and cooling, the blank is then fed into a lathe for roughing and finishing. The secondary forging and subsequent processing are existing publicly available technologies, and this technical solution will only be briefly described here.

[0047] When replacement is needed, the operator controls the hydraulic cylinder 4 to move the mounting base 5 and hammer head 6 to their highest point. At this time, the pull rope 10 is taut. The protective cover 12 can shield the contact surface between the pulley 11 and the pull rope 10, preventing oxides from splashing and adhering directly to the pulley 11 during forging, thereby reducing wear on the pull rope 10 and pulley 11 and extending their service life. After the pull rope 10 is taut, it pulls the limiting plate 9, causing the limiting plate 9 to rotate upward. Then, the forging mold 7 can be taken out for replacement. After the pull rope 10 pulls the limiting plate 9, the rotation angle of the limiting plate 9 is much greater than the angle that allows the forging mold 7 to pass underneath it. Therefore, even if the pull rope 10 becomes slightly loose after prolonged use, the upward rotation of the limiting plate 9 will still allow the mold to pass through. Reducing the rotation angle also allows the forging die 7 to pass underneath it. When the upward rotation angle of the limiting plate 9 is small, the top plate 13 can lift the limiting plate 9 upward to allow the forging die 7 to pass underneath it, extending the service life of the pull rope 10. During forging, the mounting base 5 and the hammer head 6 will not be at their apex, causing the pull rope 10 to slack and the limiting plate 9 to rotate downward by gravity. At this time, the limiting frame 8 prevents the forging die 7 from jumping upward and falling off, while the limiting plate 9 prevents the forging die 7 from horizontal displacement and falling off. Moreover, during forging, the hammer head 6 usually performs forging with a small stroke reciprocating motion, so it usually does not cause the mounting base 5 and the hammer head 6 to move upward to a fixed point, causing the limiting plate 9 to rotate continuously. It should also be noted that the attached... Figure 2 and attached Figure 3 The shape of the pull rope 10 is only because the pull rope 10 is not taut after the surface mounting seat 5 and hammer head 6 are moved down. Instead, it is naturally bent due to gravity and may not be bent into the shape shown in the figure.

[0048] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A conical cylinder forging device, comprising a base (1), a support (2), and a mounting base (5), characterized in that: On both sides of the top of the base (1), a limit frame (8) and a support base (14) are connected. Inside the support base (14), a limit plate (9) is connected. A pulling rope (10) is connected between the limit plate (9) and the mounting seat (5). In the middle of the top of the base (1), a forging die (7) is connected. On both sides of the top of the forging die (7), a top slope (13) is provided. On one side of the support (2), a protective cover (12) is connected. Inside the protective cover (12), a pulley (11) is connected.

2. The conical cylinder forging apparatus according to claim 1, characterized in that: The cross-section of the limit frame (8) is in the shape of a "7", and the two limit frames (8) are mirror-image distributed.

3. The conical cylinder forging apparatus according to claim 1, characterized in that: The cross-section of the forging die (7) is in the shape of an inverted "convex", and the forging die (7) is detachably connected to the limit frame (8) by a sliding method.

4. The conical cylinder forging apparatus according to claim 3, characterized in that: The limit plate (9) is rotatably connected to the support base (14), and the limit plate (9) abuts against the forging die (7) and the top slope (13) respectively.

5. The conical cylinder forging apparatus according to claim 1, characterized in that: The pulling rope (10) is in contact with the pulley (11), and the pulley (11) is rotatably connected to the protective cover (12).

6. The conical cylinder forging apparatus according to claim 1, characterized in that: On both sides of the top of the base (1), supports (2) are connected. On the top of the supports (2), a top plate (3) is connected. On the top of the top plate (3), a hydraulic cylinder (4) is installed. The output end of the hydraulic cylinder (4) is connected to a mounting seat (5). The bottom of the mounting seat (5) is connected to a hammer head (6).

7. The conical cylinder forging apparatus according to claim 6, characterized in that: The hammer head (6) is located directly above the forging die (7).

8. The conical cylinder forging apparatus according to claim 1, characterized in that: Two sets of the pulling rope (10), pulley (11), protective cover (12), top slope (13) and support base (14) are provided, and the two sets of the pulling rope (10), pulley (11), protective cover (12), top slope (13) and support base (14) are mirror-image arranged.

9. The conical cylinder forging apparatus according to claim 8, characterized in that: The pulling rope (10) is made of Incoloy800HT steel wire or Haynes230 steel wire.

10. The conical cylinder forging apparatus according to claim 8, characterized in that: The pulley (11) and the protective cover (12) are made of 310S stainless steel material, and the pulley (11) is treated by a nitriding process.

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