A hinge beam casting composite casting device

Abstract

The utility model discloses a hinge beam casting compound casting device, including vibration table assembly and chilling vibration module, vibration table assembly includes vibration platform, first vibration motor for bearing casting and providing integral vibration, chilling vibration module is installed in pinhole cavity through flange plate sealing, including cylindrical ceramic protective sleeve, the inside of protective sleeve is equipped with the cooling pipe and second vibration motor of reverse flow, is equipped with the spiral alloy outer covering layer for compound outside. The utility model discloses through the synergic effect of internal forced cooling and mechanical vibration, effectively refines pinhole area grain and eliminates casting defect, utilizes the metallurgical combination of outer covering layer surface micro -fusion to base simultaneously, strengthens mechanical interlock effect in combination spiral structure, has promoted the mechanical property, organization compactness and compound combination intensity of hinge beam pinhole position.

Description

Technical Field

[0001] This utility model belongs to the technical field of hinge beam production equipment, and in particular relates to a composite casting device for hinge beam castings. Background Technology

[0002] The hinge beam of a six-sided top press is a core load-bearing component in superhard material synthesis equipment. Its quality directly affects the overall performance and lifespan of the machine. The metal mold for the hinge beam is the mold used for bottom-pouring production of the hinge beam of the six-sided top press. It includes the cylinder cavity, the lug cavity, and the pin hole cavity. Before casting the hinge beam, a mandrel needs to be coaxially placed in the pin hole cavity to form the pin hole after casting. The lug part of the hinge beam and the pin hole inside it are the areas with the most concentrated stress. Traditional casting methods are prone to producing defects such as shrinkage porosity, shrinkage cavities, and coarse grains in these areas, which can easily lead to insufficient mechanical properties and fatigue strength.

[0003] In the existing technology, methods such as external quenching or electromagnetic stirring are used to improve the solidification structure. However, the effect of external quenching is limited and may lead to stress concentration due to uneven cooling. Electromagnetic stirring is complicated and expensive, and the magnetic field may interfere with the equipment. Its stirring effect is transmitted from the outside to the inside, which weakens its effect on the central area of ​​thick cross-sections. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a composite casting device for hinge beam castings to solve the technical problems mentioned in the background art.

[0005] This utility model provides the following technical solution: A composite casting device for hinge beam castings includes a hinge beam metal mold, wherein the hinge beam metal mold includes a cylinder cavity, an ear cavity, and a pin hole cavity, and further includes: A vibration table assembly, the vibration table assembly including a vibration platform for supporting the metal mold of the hinge beam, and a plurality of first vibration motors are provided on the lower end face of the vibration platform; A chilled vibration module is provided, which is used to be installed at the pin hole cavity position. The chilled vibration module includes a cylindrical ceramic protective sleeve, which is coaxially disposed within the pin hole cavity. A first circular opening and a second circular opening are respectively provided on both sides of the ear-shaped cavity at the pin hole cavity position, and a first flange and a second flange are respectively provided outside the first and second circular openings. The two ends of the ceramic protective sleeve are respectively sealed to the first flange and the second flange. A cooling pipe for introducing coolant is arranged axially inside the cylindrical ceramic protective sleeve, and a second vibration motor is also provided inside the ceramic protective sleeve.

[0006] Preferably, the cooling pipe includes a first cooling pipe and a second cooling pipe with opposite flow directions; the inlet end of the first cooling pipe is connected to a first liquid inlet head provided on the first flange, the outlet end of the first cooling pipe is connected to a first liquid outlet head provided on the second flange, the inlet end of the second cooling pipe is connected to a second liquid inlet head provided on the second flange, and the outlet end of the second cooling pipe is connected to a second liquid outlet head provided on the first flange.

[0007] Preferably, there are multiple first cooling pipes and multiple second cooling pipes, which are distributed alternately at equal intervals around the axial direction of the ceramic protective sleeve.

[0008] Preferably, a plurality of the first inlet heads are connected to a first multi-port head, the inlet end of the first multi-port head is connected to the outlet end of the first pump body for conveying the cooling medium through a first inlet manifold, and a plurality of the first outlet heads are connected to a second multi-port head, the outlet end of the second multi-port head is connected to a first outlet manifold.

[0009] Preferably, a plurality of second inlet heads are connected to a third multi-port head, the inlet end of the third multi-port head is connected to the outlet end of the second pump body used for conveying cooling medium through a second inlet manifold, and a plurality of second outlet heads are connected to a fourth multi-port head, the outlet end of the fourth multi-port head is connected to a second outlet manifold.

[0010] Preferably, the second vibration motor is coaxially disposed inside the ceramic protective sleeve, and the second vibration motor is connected to the inner wall of the ceramic protective sleeve through a support frame.

[0011] Preferably, a vibration isolator is provided between the lower end of the vibration platform and the reinforced concrete foundation for isolating vibration.

[0012] Preferably, the outer surface of the ceramic protective sleeve is further provided with an outer covering layer, which is made of high-chromium or high-molybdenum wear-resistant alloy steel.

[0013] Preferably, the outer surface of the outer covering layer is spiral-shaped.

[0014] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention provides a composite casting device for hinge beam castings. By setting up a vibration table assembly, after the pouring begins, the operation of the first vibration motor enables the entire hinge beam metal mold to be in a low-frequency vibration state. Vibration can effectively break up dendrites growing in the molten metal, increase the nucleation core, thereby refining the overall grain of the casting. At the same time, vibration can promote the feeding of the far end of the casting by the riser and help the gas in the molten metal to be discharged, thereby reducing defects such as shrinkage porosity and gas holes, and improving the comprehensive mechanical properties of the matrix material.

[0015] (2) The present invention provides a composite casting device for hinge beam casting. By embedding the chilling vibration module into the four pin hole cavities, the first cooling pipe and the second cooling pipe can achieve forced internal cooling of the molten metal, effectively eliminating shrinkage and refining the grains. The second vibration motor can apply mechanical vibration to the solidification process, further breaking up dendrites and promoting feeding. The two work together to fundamentally improve the internal structure of the pin hole area. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a schematic diagram showing the installation position of the chilled vibration module structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the structure of the chilled vibration module of this utility model.

[0020] Figure 4 This is a schematic diagram showing the structural location distribution of the first and second cooling pipes of this utility model.

[0021] Figure 5 This is a schematic diagram of the first flange structure of this utility model.

[0022] In the diagram: 1. Hinge beam metal casting mold; 11. Cylinder block cavity; 12. Ear plate cavity; 13. Pin hole cavity; 14. First circular opening; 15. Second circular opening; 16. First flange; 161. First liquid inlet; 162. Second liquid outlet; 17. Second flange; 171. First liquid outlet; 172. Second liquid inlet; 2. Vibration table assembly; 21. Vibration platform; 22. First vibration motor; 23. Vibration isolation component; 3. Cooling vibration module; 31. Ceramic protective sleeve; 32. First cooling pipe; 33. Second cooling pipe; 34. Second vibration motor; 35. Support frame; 36. Outer covering layer. Detailed Implementation

[0023] 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 a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0025] This utility model provides a composite casting device for hinge beam castings, referenced. Figure 1-5 As shown, it includes a hinge beam metal casting mold 1, which includes a cylinder cavity 11, an ear cavity 12 and a pin hole cavity 13, as well as a vibration table assembly and a chilled vibration module 3.

[0026] The vibration table assembly includes a vibration platform 21 for supporting the hinge beam metal mold 1. Several first vibration motors 22 are mounted on the lower end face of the vibration platform 21. The hinge beam metal mold 1 is rigidly fixed to the upper surface of the vibration platform 21 by high-strength bolts or special clamps. Vibration isolators 23 are also installed between the lower end of the vibration platform 21 and the reinforced concrete foundation to isolate vibration. The vibration isolators 23 are either large air springs or high-performance rubber vibration isolators, supporting the weight of the entire vibration table and its load while isolating the vibrations generated during operation from the foundation to prevent them from affecting other equipment. After pouring begins, the first vibration motors 22 are activated, bringing the entire hinge beam metal mold 1 into a stable low-frequency vibration state. This overall vibration effectively breaks up dendrites growing in the molten metal, increasing the nucleation core and thus refining the overall grain size of the casting. Simultaneously, the vibration promotes feeding at the far end of the casting via the riser and helps expel gas from the molten metal, thereby reducing defects such as shrinkage porosity and improving the overall mechanical properties of the matrix material. Vibration isolator 23 can effectively prevent vibration from being transmitted to the foundation and protect surrounding equipment.

[0027] The chilled vibration module 3 is installed at the pin hole cavity 13. The chilled vibration module 3 includes a cylindrical ceramic protective sleeve 31, which is coaxially disposed within the pin hole cavity 13. The two sides of the ear-shaped cavity 12 at the pin hole cavity 13 have a first circular opening 14 and a second circular opening 15, respectively. A first flange 16 and a second flange 17 are respectively provided outside the first circular opening 14 and the second circular opening 15. The two ends of the ceramic protective sleeve 31 are sealed to the first flange 16 and the second flange 17, respectively. A cooling pipe for introducing coolant is arranged axially inside the cylindrical ceramic protective sleeve 31. A second vibration motor 34 is also installed inside the ceramic protective sleeve 31. The ceramic protective sleeve 31 is fixed within the pin hole cavity 13 by the first flange 16 and the second flange 17. After casting, the high-temperature molten metal surrounds the ceramic protective sleeve 31 and its outer covering layer 36. At this point, the second vibration motor 34 is immediately started and coolant is introduced into the first cooling pipe 32 and the second cooling pipe 33. The second vibration motor 34 directly applies high-frequency mechanical vibration from inside the pin hole, forming a composite vibration field with the external vibration table, which produces a grain refinement effect on the molten metal in the pin hole area. The coolant in the first cooling pipe 32 and the second cooling pipe 33 directly performs forced cooling of the molten metal from the inside, realizing directional solidification, further refining the grains and eliminating shrinkage defects in this area. The cooling pipes include a first cooling pipe 32 and a second cooling pipe 33 with opposite flow directions. The inlet end of the first cooling pipe 32 is connected to a first liquid inlet 161 provided on the first flange 16, and the outlet end of the first cooling pipe 32 is connected to a first liquid outlet 171 provided on the second flange 17. The inlet end of the second cooling pipe 33 is connected to a second liquid inlet 172 provided on the second flange 17, and the outlet end of the second cooling pipe 33 is connected to a second liquid outlet 162 provided on the first flange 16. The coolant in the first cooling pipe 32 and the second cooling pipe 33 flows in opposite directions, forming a counter-current heat exchange mode. This design can establish a more uniform temperature field and heat flow direction, avoid local overcooling or undercooling caused by unidirectional cooling, and make the microstructure more uniform and consistent during the solidification process in the pinhole area.

[0028] Multiple first cooling pipes 32 and multiple second cooling pipes 33 are provided, and the multiple first cooling pipes 32 and multiple second cooling pipes 33 are distributed alternately at equal intervals around the axial direction of the ceramic protective sleeve 31. The alternating distribution of multiple first cooling pipes 32 and multiple second cooling pipes 33 at equal intervals ensures the uniformity of the cooling effect in the circumferential direction.

[0029] A plurality of first inlet heads 161 are connected to a first multi-port head, the inlet end of the first multi-port head being connected to the outlet end of a first pump body for conveying cooling medium via a first inlet manifold; a plurality of first outlet heads 171 are connected to a second multi-port head, the outlet end of the second multi-port head being connected to a first outlet manifold; a plurality of second inlet heads 172 are connected to a third multi-port head, the inlet end of the third multi-port head being connected to the outlet end of a second pump body for conveying cooling medium via a second inlet manifold; a plurality of second outlet heads 162 are connected to a fourth multi-port head, the outlet end of the fourth multi-port head being connected to a second outlet manifold.

[0030] The second vibration motor 34 is coaxially disposed inside the ceramic protective sleeve 31, and the second vibration motor 34 is connected to the inner wall of the ceramic protective sleeve 31 through the support frame 35.

[0031] The outer surface of the ceramic protective sleeve 31 is also provided with an outer coating layer 36, which is made of high-chromium or high-molybdenum wear-resistant alloy steel. The outer coating layer 36 is made of high-strength wear-resistant alloy steel such as high-chromium and high-molybdenum, with a composition similar to the base steel but a slightly lower melting point. This allows for surface micro-melting during casting, forming a metallurgical composite with the base steel. The outer surface of the outer coating layer 36 is spiral-shaped. The outer coating layer 36 is made of a high-performance wear-resistant alloy with a composition similar to the base steel but a slightly lower melting point. Surrounded by high-temperature molten steel, its surface undergoes micro-melting. This surface micro-melting causes elemental interdiffusion between the outer coating layer 36 material and the base steel, forming a strong metallurgical bond with a bonding strength far exceeding that of traditional mechanical bonding. The spiral structure on the outer side of the outer coating layer 36 increases the contact area with the base steel and forms a unique mechanical interlocking structure, enhancing resistance to detachment and ensuring the ultra-high reliability of the composite interface.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A hinge beam casting composite casting apparatus comprising a hinge beam metal mold (1) including a cylinder cavity (11), an ear cavity (12), and a pin hole cavity (13), characterized in that, Also includes: The vibration table assembly includes a vibration platform (21) for supporting the metal casting (1) of the hinge beam, and a plurality of first vibration motors (22) are provided on the lower end face of the vibration platform (21). A chilled vibration module (3) is used to be installed in the pin hole cavity (13). The chilled vibration module (3) includes a cylindrical ceramic protective sleeve (31) which is coaxially installed in the pin hole cavity (13). The two sides of the ear plate cavity (12) are respectively provided with a first circular opening (14) and a second circular opening (15) at the pin hole cavity (13). A first flange (16) and a second flange (17) are respectively provided on the outside of the first circular opening (14) and the second circular opening (15). The two ends of the ceramic protective sleeve (31) are respectively sealed to the first flange (16) and the second flange (17). A cooling pipe for passing coolant is provided inside the cylindrical ceramic protective sleeve (31) along its axial direction. A second vibration motor (34) is also provided inside the ceramic protective sleeve (31).

2. The apparatus for composite casting of a hinge beam casting according to claim 1, wherein The cooling pipe includes a first cooling pipe (32) and a second cooling pipe (33) with opposite flow directions; the inlet end of the first cooling pipe (32) is connected to the first liquid inlet head (161) provided on the first flange (16), the outlet end of the first cooling pipe (32) is connected to the first liquid outlet head (171) provided on the second flange (17), the inlet end of the second cooling pipe (33) is connected to the second liquid inlet head (172) provided on the second flange (17), and the outlet end of the second cooling pipe (33) is connected to the second liquid outlet head (162) provided on the first flange (16).

3. The apparatus according to claim 2, wherein The first cooling pipe (32) and the second cooling pipe (33) are provided with multiple pipes, and the multiple first cooling pipes (32) and the multiple second cooling pipes (33) are distributed alternately at equal intervals around the axial direction of the ceramic protective sleeve (31).

4. The apparatus according to claim 3, wherein A plurality of first liquid inlet heads (161) are connected to a first multi-port head. The inlet end of the first multi-port head is connected to the outlet end of the first pump body used for conveying cooling medium through a first liquid inlet manifold. A plurality of first liquid outlet heads (171) are connected to a second multi-port head. The outlet end of the second multi-port head is connected to a first liquid outlet manifold.

5. The apparatus for composite casting of a hinge beam casting according to claim 4, wherein A plurality of second inlet heads (172) are connected to a third multi-port head. The inlet end of the third multi-port head is connected to the outlet end of the second pump body used for conveying cooling medium through a second inlet manifold. A plurality of second outlet heads (162) are connected to a fourth multi-port head. The outlet end of the fourth multi-port head is connected to a second outlet manifold.

6. The hinge beam casting composite casting apparatus according to claim 1, wherein The second vibration motor (34) is coaxially disposed inside the ceramic protective sleeve (31), and the second vibration motor (34) is connected to the inner wall of the ceramic protective sleeve (31) through a support frame (35).

7. The apparatus according to claim 1, wherein A vibration isolation component (23) for isolating vibration is also provided between the lower end of the vibration platform (21) and the reinforced concrete foundation.

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