A temperature-controlled forging die for a spindle slant plate

Abstract

This utility model relates to the field of spindle slant plate forging die technology, specifically to a temperature-controlled forging die for spindle slant plates, comprising an upper connecting plate and a lower connecting plate. A pressing platform is fixed at the bottom end of the upper connecting plate, and a die base is placed in the middle of the top end of the lower connecting plate and in the pressing platform. The die base includes an upper die base and a lower die base. An upper die cavity and a lower die cavity are respectively opened in the middle of the bottom end of the upper die base and the middle of the top end of the lower die base. A circular groove communicating with the outside is opened on one side of both the upper and lower die bases, and an air pipe is inserted into the circular groove. A groove is opened in the middle of the pressing platform. By integrating a heating rod and a temperature sensor in the groove of the pressing platform, the die ensures that the temperature of the upper die cavity is always stable within the set range. This precise temperature control method effectively solves the problem of uneven temperature in traditional dies, can adapt to the forming temperature requirements of spindle slant plates of different materials, significantly reduces the incidence of defects such as local cracks and loose structure in forgings, and improves the forging qualification rate.

Description

Technical Field

[0001] This utility model relates to the field of spindle slant plate forging die technology, specifically to a temperature-controlled forging die for spindle slant plates. Background Technology

[0002] As a key load-bearing and transmission component in various transmission equipment, the spindle slant plate typically comprises a composite structure of a horizontal end face and an inclined side face. It also faces stringent requirements regarding dimensional accuracy, surface quality, and internal metallographic structure. Forging is the core process for achieving its formation. In the traditional spindle slant plate forging process, the die, acting as the forming carrier, directly determines the final quality of the forging through its temperature control accuracy and forming stability.

[0003] Existing forging dies generally suffer from the following technical pain points: First, temperature control methods are crude, often relying on overall die preheating followed by natural heat dissipation. This fails to provide precise temperature control for core forming areas such as the upper and lower cavities. Furthermore, the irregular shape of the spindle slant plate results in varying forming temperature requirements in different areas, leading to uneven temperature distribution and defects such as incomplete forming, cracks, or porous structure in the forgings. Second, the alignment accuracy between the die and the connecting plate is low. Impact forces during forging can cause relative displacement, leading to misalignment of the upper and lower cavities and increasing the risk of forging scrap. Third, the demolding and cooling efficiency after forging is low, lacking targeted air path design to assist cooling and demolding. This is especially true in the transition area between the horizontal end face and the slant surface of the spindle slant plate, where inconsistent cooling rates can generate internal stress. Additionally, high demolding resistance can cause scratches on the forging surface. Fourth, while some dies are equipped with simple heating elements, they lack real-time temperature monitoring and feedback mechanisms, failing to achieve closed-loop control of the heating process. This results in large temperature fluctuations, making it difficult to adapt to the forging process requirements of spindle slant plates made of different materials. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a temperature-controlled forging die for a spindle slant plate, which can effectively solve the problems in the existing technology.

[0005] This utility model provides a temperature-controlled forging die for a spindle inclined plate, including an upper connecting plate and a lower connecting plate. A pressing platform is fixed at the bottom end of the upper connecting plate, and a die base is placed in the middle of the top end of the lower connecting plate and in the pressing platform. The die base includes an upper die base and a lower die base. An upper die cavity and a lower die cavity are respectively opened in the middle of the bottom end of the upper die base and the middle of the top end of the lower die base. A circular groove communicating with the outside is opened on one side of both the upper die base and the lower die base, and an air pipe is inserted into the circular groove. A groove is opened in the middle of the pressing platform, and an electric heating rod and a temperature sensor are respectively inserted into the groove.

[0006] Furthermore, a groove is provided through the middle of the upper connecting plate and the pressing table, and a pipe is fixed on the outside of the groove at the bottom of the pressing table. The bottom end of the pipe is connected to the mold groove in the middle of the upper mold cavity.

[0007] Furthermore, the bottom ends of the heating rod and temperature sensor are inserted into the upper mold base, and one end of the heating rod and temperature sensor is connected to the external control structure. A mold opening is provided at the top center of the upper connecting plate, and the bottom end of the mold opening is connected to the pipe.

[0008] Furthermore, the four corners of the pressing platform are fixed with mating seats, and the four corners of the lower connecting plate are provided with inner grooves, in which the mating seats are inserted.

[0009] Furthermore, a conical groove is provided in the middle of the lower connecting plate, and an air rod is fixed in the groove. The output end of the air rod is in contact with and fixed to the bottom end of the lower mold base.

[0010] Furthermore, the air pipe is located on the horizontal end face where the vertical distance between the horizontal end face of the upper mold cavity and the inclined surface on the same side is the maximum, and the acute angle between the bottom surface and the side surface of the upper mold cavity and the lower mold cavity is exactly one side of the lower mold base.

[0011] The beneficial effects of this invention are as follows: By integrating a heating rod and a temperature sensor into the pressing table groove, with their bottom ends directly inserted into the upper die holder, the mold can directly and precisely heat and monitor the temperature of the upper die holder in the core forming area in real time. Simultaneously, the heating rod is connected to an external control structure to form a closed-loop temperature control system, which can dynamically adjust the heating power according to the forging process requirements, ensuring that the temperature of the upper die cavity remains stable within the set range. This precise temperature control method effectively solves the problem of uneven temperature in traditional molds, can adapt to the forming temperature requirements of spindle inclined plates of different materials, significantly reduces the incidence of defects such as local cracks and loose structure in forgings, and improves the forging qualification rate.

[0012] In this device, the air pipe is positioned on the horizontal end face where the vertical distance between the horizontal end face of the inclined plate and the inclined surface on the same side is greatest. During the forging process, the acute angle between the bottom and side surfaces of the inclined plate is precisely between the lower die plate and the side wall of the cylindrical cavity, effectively dispersing the pressure at this point. The separate design of the lower die plate and the lower die holder greatly disperses the stress borne at the connection between the lower die plate and the lower die holder during forging, thus significantly extending the service life of the die. Even if the lower die plate is damaged, it only needs to be replaced individually, significantly improving the service life of the die. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an exploded view of the structure of this utility model; Figure 3 This is a cross-sectional structural diagram of the present invention; Figure 4 This is a cross-sectional exploded view of the present invention.

[0015] The labels in the diagram represent: 1. Upper connecting plate; 2. Lower connecting plate; 21. Inner groove; 22. Air rod; 3. Pressing platform; 31. Butt joint seat; 4. Mold base; 41. Upper mold base; 42. Lower mold base; 43. Upper mold cavity; 44. Lower mold cavity; 45. Mold groove; 46. Pipe; 5. Air pipe; 6. Heating rod; 7. Temperature sensor; 8. Mold opening. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0017] The present invention will be further described below with reference to the embodiments.

[0018] Example: A temperature-controlled forging die for a spindle slant plate, see attached figure. Figure 1 - Appendix Figure 4 The assembly includes an upper connecting plate 1 and a lower connecting plate 2. A pressing platform 3 is fixed at the bottom of the upper connecting plate 1. A mold base 4 is placed in the middle of the top of the lower connecting plate 2 and in the pressing platform 3. The mold base 4 includes an upper mold base 41 and a lower mold base 42. An upper mold cavity 43 and a lower mold cavity 44 are respectively opened in the middle of the bottom of the upper mold base 41 and the middle of the top of the lower mold base 42. A circular groove is opened on one side of the upper mold base 41 and the lower mold base 42 to maintain communication with the outside. An air pipe 5 is inserted in the circular groove. A groove is opened in the middle of the pressing platform 3. An electric heating rod 6 and a temperature sensor 7 are respectively inserted in the groove. A groove is provided through the middle of the upper connecting plate 1 and the pressing table 3. A pipe 46 is fixed on the outside of the bottom groove of the pressing table 3. The bottom end of the pipe 46 is connected to the mold groove 45 in the middle of the upper mold cavity 43.

[0019] The bottom ends of the heating rod 6 and the temperature sensor 7 are inserted into the upper mold base 41, and one end of the heating rod 6 and the temperature sensor 7 is connected to the external control structure. A mold opening 8 is opened in the middle of the top of the upper connecting plate 1, and the bottom end of the mold opening 8 is connected to the pipe 46. The mold integrates the heating rod 6 and the temperature sensor 7 in the groove of the pressing table 3, and the bottom ends of the two are directly inserted into the upper mold base 41. This allows for precise heating and real-time temperature monitoring of the upper mold base 41 in the core forming area. At the same time, the heating rod 6 is connected to the external control structure to form a closed-loop temperature control system, which can dynamically adjust the heating power according to the forging process requirements to ensure that the temperature of the upper mold cavity 43 is always stable within the set range. This precise temperature control method effectively solves the problem of uneven temperature in traditional molds, can adapt to the forming temperature requirements of spindle inclined plates of different materials, significantly reduces the incidence of defects such as local cracks and loose structure in forgings, and improves the forging qualification rate.

[0020] The pressing table 3 has four fixed docking seats 31 at its four corners, and the lower connecting plate 2 has inner grooves 21 at its four corners, with the docking seats 31 inserted into the inner grooves 21. The docking seats 31 at the four corners of the pressing table 3 and the inner grooves 21 at the four corners of the lower connecting plate 2 form a precise mating structure. This four-point positioning method greatly improves the docking accuracy between the upper connecting plate 1 and the lower connecting plate 2, effectively limiting the relative displacement of the die caused by impact force during forging, and ensuring that the upper die cavity 43 and the lower die cavity 44 always maintain good alignment. At the same time, the conical slot in the middle of the lower connecting plate 2 provides stable positioning for the air rod 22. After the output end of the air rod 22 is fixed to the bottom end of the lower die base 42, the installation stability of the lower die base 42 is further enhanced, avoiding forging dimensional deviations caused by the shaking of the lower die base 42 during the forming process.

[0021] A conical slot is provided in the middle of the lower connecting plate 2, and a pneumatic rod 22 is fixed in the slot. The output end of the pneumatic rod 22 is in contact with and fixed to the bottom end of the lower die base 42. The structure of the pneumatic rod 22 in the middle of the lower connecting plate 2 enables the lower die base 42 to be raised and lowered. By controlling the extension and retraction of the output end of the pneumatic rod 22, the height of the lower die base 42 can be precisely adjusted. This not only adapts to the forging requirements of different specifications of spindle inclined plates, but also facilitates the removal of forgings after forming and the maintenance and replacement of the die. In addition, the die opening 8 at the top of the upper connecting plate 1 is connected to the pipe 46 at the bottom of the pressing table 3, forming a convenient feeding channel. This can be used with automated feeding equipment to further improve the level of production automation.

[0022] Air pipe 5 is positioned on the horizontal end face where the vertical distance between the horizontal end face of the upper mold cavity 43 and the inclined surface on the same side is the maximum. The acute angle between the bottom surface and the side surface of the upper mold cavity 43 and the lower mold cavity 44 is exactly one side of the lower mold base 42. Air pipe 5, inserted into the circular groove on one side of the upper mold base 41 and the lower mold base 42, is precisely positioned on the horizontal end face where the vertical distance between the horizontal end face of the upper mold cavity 43 and the inclined surface on the same side is the maximum. This position is a critical stress concentration area and a region with high demolding resistance after the main shaft inclined plate is formed. By introducing cooling gas through air pipe 5, the temperature in this area can be quickly reduced, thereby reducing the internal stress of the forging and the adhesion between the forging and the mold cavity, achieving efficient demolding and avoiding scratches on the surface of the forging caused by traditional demolding methods. At the same time, the improved cooling efficiency also shortens the production cycle and improves production efficiency.

[0023] The mold integrates temperature control, positioning, demolding, and adjustment functions into a single structure. The components are compactly arranged and work in tandem, eliminating the need for complex auxiliary equipment and simplifying the production process. Simultaneously, precise temperature control and stable positioning reduce forging scrap rates, while efficient demolding and convenient adjustment lower equipment maintenance and labor costs, comprehensively improving production efficiency.

[0024] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A temperature-controlled forging die for a spindle slant plate, characterized in that, The assembly includes an upper connecting plate (1) and a lower connecting plate (2). A pressing platform (3) is fixed at the bottom of the upper connecting plate (1). A mold base (4) is placed in the middle of the top of the lower connecting plate (2) and in the pressing platform (3). The mold base (4) includes an upper mold base (41) and a lower mold base (42). An upper mold cavity (43) and a lower mold cavity (44) are respectively opened in the middle of the bottom of the upper mold base (41) and the middle of the top of the lower mold base (42). A circular groove is opened on one side of the upper mold base (41) and the lower mold base (42) to maintain communication with the outside. An air pipe (5) is inserted in the circular groove. A groove is opened in the middle of the pressing platform (3). An electric heating rod (6) and a temperature sensor (7) are respectively inserted in the groove.

2. The temperature-controlled forging die for a spindle slant plate according to claim 1, characterized in that, The upper connecting plate (1) and the pressing table (3) are provided with a groove through the middle. A pipe (46) is fixed on the outside of the bottom groove of the pressing table (3). The bottom end of the pipe (46) is connected to the mold groove (45) in the middle of the upper mold cavity (43).

3. A temperature-controlled forging die for a spindle slant plate according to claim 1, characterized in that, The bottom ends of the heating rod (6) and the temperature sensor (7) are inserted into the upper mold base (41), and one end of the heating rod (6) and the temperature sensor (7) is connected to the external control structure. The top center of the upper connecting plate (1) is provided with a mold opening (8), and the bottom end of the mold opening (8) is connected to the pipe (46).

4. A temperature-controlled forging die for a spindle slant plate according to claim 1, characterized in that, The crimping platform (3) has four corners fixed with mating seats (31), and the lower connecting plate (2) has four corners with inner grooves (21), and the mating seats (31) are inserted into the inner grooves (21).

5. A temperature-controlled forging die for a spindle slant plate according to claim 4, characterized in that, The lower connecting plate (2) has a conical slot in the middle, and an air rod (22) is fixed in the slot. The output end of the air rod (22) is in contact with and fixed to the bottom end of the lower mold base (42).

6. A temperature-controlled forging die for a spindle slant plate according to claim 1, characterized in that, The air pipe (5) is located on the horizontal end face of the upper mold cavity (43) and the lower mold cavity (44) at the point where the vertical distance between the horizontal end face and the inclined surface on the same side is the maximum. The bottom surface of the upper mold cavity (43) and the side surface of the lower mold cavity (44) form an acute angle with the side surface, which is exactly one side of the lower mold base (42).

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