Vacuum medium frequency target casting device

Abstract

The utility model relates to metal processing technical field especially, relate to vacuum medium frequency target casting device, the utility model discloses a vacuum medium frequency target casting device sets up mobile manipulator and carries induction coil, realizes that a set of heating system is shared to many vacuum containers, and equipment cost and space occupancy are reduced obviously, vacuumizing device adopts the combination of mechanical pump and diffusion pump, and real -time monitoring is coordinated vacuum gauge pipe, ensures that the vacuum degree is stable and reliable, and can reduce the blowhole of casting part, and the yield is increased obviously, and the cooling device carries out efficient heat dissipation to medium frequency power supply, guarantees the long -time stable operation of equipment. Compact overall structure, the degree of automation is high, is applicable to the industrial scene of many target materials continuous or alternate production.

Description

Technical Field

[0001] This utility model relates to the field of metal processing technology, and in particular to a vacuum intermediate frequency casting target device. Background Technology

[0002] Existing vacuum target casting furnaces typically employ a fixed induction heating structure, with each vacuum chamber equipped with an independent induction coil and intermediate frequency power supply. This results in high equipment costs, large footprint, and significant energy consumption. For example, in scenarios where multiple targets need to be produced in rotation, workers must continuously unload and load the cast targets, leading to low equipment utilization and cumbersome switching processes. Furthermore, the movement and positioning accuracy of the induction coils are difficult to guarantee, resulting in low movement efficiency and low automation, which affects the stability of the casting process and the quality of the target material, as illustrated by patent CN201922245213.1 – a target casting device for X-ray tube production. In addition, none of the above technical solutions disclose a heat dissipation scheme for the intermediate frequency power supply. Prolonged operation of the intermediate frequency power supply can easily lead to overheating, affecting equipment lifespan and process stability. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a vacuum intermediate frequency casting target device, comprising: frame; Several vacuum containers are mounted on the frame; A vacuum pumping device is installed inside the frame, and the suction end of the vacuum pumping device is connected to all the vacuum containers. A mobile robotic arm is provided with at least one induction coil. The mobile robotic arm is capable of moving on the frame and can move the induction coil to be placed on or pulled out of any of the vacuum containers. A medium-frequency power supply, which is electrically connected to all the aforementioned induction coils; A cooling device, the cooling end of which is disposed within the intermediate frequency power supply to cool the intermediate frequency power supply.

[0004] In some possible implementations, the mobile manipulator includes a horizontal slide, a lifter mounted on the horizontal slide, and a lifting seat mounted on the lifting end of the lifter. The horizontal slide is mounted on the frame, all the induction coils are mounted on the lifting seat, and all the vacuum containers are located on both sides of the horizontal slide.

[0005] In some possible implementations, the lifting platform is covered with a protective cover around the induction coil, and the protective cover has clearance holes on both sides along the axial direction of the induction coil.

[0006] In some possible implementations, position gratings are provided on both ends of the horizontal slide on the frame.

[0007] In some possible implementations, the vacuum pumping device includes a mechanical pump and a diffusion pump, both mounted on the frame. The input end of the mechanical pump is connected to the output end of the diffusion pump via a pipeline, and the input end of the diffusion pump is connected to the bottom of all the vacuum containers via a pipeline. A vacuum gauge is provided on the pipeline between the diffusion pump and the vacuum containers.

[0008] In some possible implementations, an inlet valve and a filter are connected in the pipeline between the diffusion pump and the vacuum container; a control valve is provided in the pipeline between the mechanical pump and the diffusion pump.

[0009] In some possible implementations, each vacuum container includes a fixed base, a positioning seat disposed on the fixed base, a ceramic rod disposed on the positioning seat, and a positioning fixture fastened to the top of the ceramic rod. The positioning fixture has a receiving space for accommodating the product. The fixed base is mounted on the frame, and a quartz cover is fastened to the positioning seat, forming a sealed space between the two. The bottom of the positioning seat is connected to the suction end of the vacuum pump. The quartz cover fastens the ceramic rod and the positioning fixture inside. A high-temperature resistant sealing ring is provided between the lower opening of the quartz cover and the fixed base. The induction coil can be fitted over or pulled out from the quartz cover.

[0010] In some possible implementations, the cooling device includes a cooling water tank, a water-cooled fan, and water-cooled pipes. The cooling water tank supplies water to the inlet of the water-cooled fan through a water supply pipe. A water supply pump is installed on the water supply pipe. The high-temperature drain end of the water-cooled fan is connected to the inlet of the cooling water tank through a high-temperature resistant hose. The cold water end of the water-cooled fan is connected to the medium-frequency power supply for heat exchange through water-cooled pipes.

[0011] Compared to existing technologies, the advantages of this invention are as follows: The vacuum intermediate-frequency casting target device of this invention, by setting up a moving robotic arm carrying an induction coil, enables multiple vacuum containers to share a single heating system, significantly reducing equipment costs and space occupation; the vacuum pumping device uses a combination of a mechanical pump and a diffusion pump, coupled with real-time monitoring by a vacuum gauge, ensuring stable and reliable vacuum levels and reducing porosity in cast parts, significantly increasing yield; the cooling device efficiently dissipates heat from the intermediate-frequency power supply, ensuring stable operation of the equipment over long periods. The overall structure is compact, with a high degree of automation, and is suitable for industrial scenarios involving continuous or alternating production of multiple targets. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments 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.

[0013] Figure 1 Schematic diagram of the vacuum intermediate frequency casting target device provided in the embodiments of this utility model Figure 1 ; Figure 2 Schematic diagram of the vacuum intermediate frequency casting target device provided in the embodiments of this utility model Figure 2 ; Figure 3 Partial structural diagram of the vacuum intermediate frequency casting target device provided in this embodiment of the utility model; Figure 4 This is a partial structural schematic diagram of the vacuum container provided in an embodiment of the present utility model; Figure 5 Partial structural diagram of the vacuum pumping device provided in the embodiment of this utility model; Figure 6 This is a schematic diagram of the structure of the mobile robotic arm provided in an embodiment of the present invention.

[0014] Reference numerals: Frame 10, Position grating 11, Vacuum container 20, Fixed base 21, Positioning base 22, Ceramic rod 23, Positioning fixture 24, Quartz cover 25, High-temperature resistant sealing ring 26, Vacuum pumping device 30, Mechanical pump 31, Diffusion pump 32, Pipeline 33, Vacuum gauge tube 34, Inlet valve 35, Filter 36, Control valve 37, Moving robot 40, Induction coil 41, Horizontal slide 42, Lifter 43, Lifting base 44, Protective cover 45, Clearance hole 46, Medium frequency power supply 50, Cooling device 60, Cooling water tank 61, Water-cooled fan 62, Water-cooled pipe 63, Water supply pipe 64, Water supply pump 65, High-temperature resistant hose 66. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] See Figures 1 to 6The vacuum intermediate frequency casting target device includes a frame 10, several vacuum containers 20, a vacuum pumping device 30, a moving robot 40, an intermediate frequency power supply 50, and a cooling device 60. The vacuum containers 20 are all mounted on the frame 10. The vacuum pumping device 30 is installed inside the frame 10, and its suction end is connected to all vacuum containers 20. The moving robot 40 is equipped with at least one induction coil 41 and can move on the frame 10, allowing it to either place the induction coil 41 outside or remove it from any vacuum container 20. The intermediate frequency power supply 50 is electrically connected to all induction coils 41. The cooling end of the cooling device 60 is located inside the intermediate frequency power supply 50 to cool it.

[0017] The frame 10 is constructed from welded or bolted steel, possessing sufficient rigidity and stability to support the vacuum container 20 and the mobile robot 40. Preferably, there are multiple vacuum containers 20, the number of which can be designed according to actual production needs. In this embodiment, sixteen vacuum containers are arranged along the length of the frame 10, positioned on both sides of the mobile robot 40's movement path, used to hold target materials and perform vacuum melting. The mobile robot 40 drives the induction coil 41 to move between different vacuum containers 20, enabling one heating system to serve multiple workstations, significantly improving equipment utilization and production efficiency. The intermediate frequency power supply 50 provides high-frequency current to the induction coil 41, causing it to generate an alternating magnetic field, which induction heats and melts the metal materials in a vacuum environment. The cooling device 60 dissipates heat from the intermediate frequency power supply 50 through a circulating cooling medium, ensuring its stability under long-term high-load operation.

[0018] This vacuum intermediate frequency casting target device uses a mobile robotic arm 40 to achieve rapid positioning and switching of the induction coil 41 among multiple vacuum containers 20. Combined with a centrally controlled vacuum pumping device 30 and a high-efficiency cooling system, it forms an integrated and automated vacuum casting target solution, which is particularly suitable for the production needs of small batches and multiple varieties of target materials.

[0019] See Figures 1 to 4Each vacuum container 20 includes a fixed base 21, a positioning base 22 mounted on the fixed base 21, a ceramic rod 23 mounted on the positioning base 22, and a positioning fixture 24 fastened to the top of the ceramic rod 23. The positioning fixture 24 has a receiving space for accommodating the product. The bottom of the positioning fixture 24 has a fastening groove, and the top of the ceramic rod 23 has a matching fastening platform. The two are detachably connected by fastening, which facilitates the placement and removal of the target material and the maintenance of the components. The fixed base 21 is mounted on the frame 10. A quartz cover 25 is fastened to the positioning base 22, and a sealed space is formed between the two. The bottom of the positioning base 22 is connected to the suction end of the vacuum pumping device 30. The quartz cover 25 fastens the ceramic rod 23 and the positioning fixture 24 inside. A high-temperature resistant sealing ring 26 is provided between the lower opening of the quartz cover 25 and the fixed base 21. The induction coil 41 can be fitted over the quartz cover 25 or pulled out from the quartz cover 25. The fixing base 21 and positioning base 22 are typically made of metal or ceramic, providing structural support and a vacuum-sealed foundation. The ceramic rod 23 serves as insulation and support, and its top positioning fixture 24 is custom-designed according to the target shape to hold the raw material. The quartz cover 25 is made of transparent or translucent quartz glass, is heat-resistant, insulating, and light-transmitting, facilitating observation of the melting process. The high-temperature resistant sealing ring 26 ensures a vacuum seal between the quartz cover 25 and the fixing base 21; the high-temperature resistant sealing ring 26 can be made of fluororubber or a metal spiral wound gasket. The induction coil 41 is fitted around the outside of the quartz cover 25, heating the metal material inside through electromagnetic induction.

[0020] See Figure 3 and Figure 5 The vacuum pumping device 30 includes a mechanical pump 31 and a diffusion pump 32, both mounted on the frame 10. The input end of the mechanical pump 31 is connected to the output end of the diffusion pump 32 via a pipe 33. The input end of the diffusion pump 32 is connected to the bottom of all vacuum containers 20 via a pipe 33. A vacuum gauge tube 34 is installed on the pipe 33 between the diffusion pump 32 and the vacuum container 20. The mechanical pump 31 acts as a backing pump, first evacuating the system to a medium vacuum range. Then, the diffusion pump 32 starts, raising the vacuum level to a high vacuum to meet the requirements of the casting target process. The vacuum gauge tube 34 monitors the pressure inside the vacuum container 20 in real time and feeds the signal back to the control system to achieve automatic adjustment and alarm of the vacuum level. The vacuum gauge tube 34 is a common instrument for measuring vacuum level. Furthermore, the measurement system composed of the vacuum gauge tube 34 and the conventional control system is a standard configuration, which will not be described in detail here.

[0021] In the above embodiments, to facilitate the introduction of process gas and system maintenance, an inlet valve 35 and a filter 36 are connected to the pipeline 33 between the diffusion pump 32 and the vacuum container 20; a control valve 37 is provided on the pipeline 33 between the mechanical pump 31 and the diffusion pump 32. The inlet valve 35 is used to fill the vacuum container 20 with inert gas after melting, so as to quickly break the vacuum or adjust the atmosphere. The filter 36 can capture dust or volatiles that may be generated during the pumping process, preventing them from entering the pump body and causing pollution or damage. The control valve 37 can be a solenoid valve or a baffle valve, used to isolate the mechanical pump 31 and the diffusion pump 32, and maintain the system vacuum state when the pump is stopped or maintained.

[0022] See Figure 1 , Figure 3 and Figure 6 To facilitate the movement of the induction coils 41 to adapt to the heating operations of different vacuum containers 20, the mobile robot 40 includes a horizontal slide 42, a lifter 43 mounted on the horizontal slide 42, and a lifting seat 44 mounted on the lifting end of the lifter 43. The horizontal slide 42 is mounted on the frame 10, all induction coils 41 are mounted on the lifting seat 44, and all vacuum containers 20 are located on both sides of the horizontal slide 42. The horizontal slide 42 can be a linear module or a lead screw slide, driven by a servo motor through a coupling or gear transmission to achieve precise horizontal positioning of the lifting seat 44. The lifter 43 is a cylinder, hydraulic cylinder, or electric push rod, etc., which drives the lifting seat 44 and the induction coils 41 to move vertically, enabling them to accurately fit onto or detach from the vacuum containers 20. Arranging the vacuum containers 20 on both sides of the horizontal slide 42 can make full use of space and increase the number of workstations without significantly increasing the size of the equipment.

[0023] In the above embodiments, to protect the induction coil 41 and prevent external interference, the lifting platform 44 is equipped with a protective cover 45 around the induction coil 41. The protective cover 45 has clearance holes 46 on both sides along the axial direction of the induction coil 41. The protective cover 45 is made of high-temperature resistant insulating material, such as ceramic fiber or special engineering plastic, to prevent burns caused by high-temperature radiation during induction heating. The clearance holes 46 allow the induction coil 41 to pass smoothly through the neck of the vacuum container 20 during lifting, while minimizing the opening area to maintain the protective effect.

[0024] Furthermore, to improve the positioning accuracy and safety of the mobile robotic arm 40, position gratings 11 are installed on both ends of the horizontal slide 42 on the frame 10. The position gratings 11 are photoelectric sensors or encoders used to detect the extreme positions of the horizontal slide 42 to prevent it from overtraveling and colliding. At the same time, they can be linked with the control system in the background to achieve precise alignment between the induction coil 41 and the vacuum container 20.

[0025] See Figure 1The cooling device 60 includes a cooling water tank 61, a water-cooled fan 62, and water-cooled pipes 63. The cooling water tank 61 supplies water to the inlet of the water-cooled fan 62 via a water supply pipe 64, which is equipped with a water supply pump 65. The high-temperature drainage end of the water-cooled fan 62 is connected to the inlet of the cooling water tank 61 via a high-temperature resistant hose 66. The cold water end of the water-cooled fan 62 is connected to the intermediate frequency power supply 50 for heat exchange via the water-cooled pipes 63. The cooling water tank 61 stores deionized water or a special coolant, and the water supply pump 65 provides the circulation power. The water-cooled fan 62 cools the high-temperature return water through air cooling or secondary water cooling, generating a low-temperature cooling medium, which is sent to the heat exchanger inside the intermediate frequency power supply 50 via the water-cooled pipes 63 to remove the heat generated. The high-temperature resistant hose 66 connects the water-cooled fan 62 and the cooling water tank 61, allowing for the transport of high-temperature drainage while maintaining flexibility, facilitating equipment layout.

[0026] In actual operation, the target material is placed in the accommodating space of the positioning fixture 24, and the quartz cover 25 is fastened and sealed. The vacuum pump 30 is activated, and the mechanical pump 31 and diffusion pump 32 work in sequence to evacuate the vacuum container 20 to a preset high vacuum level. The moving robot 40 moves the induction coil 41 above the target vacuum container 20 according to a preset program, and the lifting device 43 lowers so that the induction coil 41 is fitted over the quartz cover 25. The intermediate frequency power supply 50 is energized, and the induction coil 41 generates a high-frequency magnetic field, which rapidly heats and melts the raw material. The cooling device 60 continuously cools the intermediate frequency power supply 50 to maintain its operating temperature. After melting is completed, the induction coil 41 is raised and removed, and inert gas is introduced through the air inlet valve 35 to balance the pressure inside the container. Then, the quartz cover 25 is opened and the molded target material is removed. The entire process is highly automated and can realize the production of multiple targets in turn, significantly improving efficiency.

[0027] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the appended claims.

Claims

1. A vacuum intermediate frequency casting target device, characterized in that, include: frame; Several vacuum containers are mounted on the frame; A vacuum pumping device is installed inside the frame, and the suction end of the vacuum pumping device is connected to all the vacuum containers. A mobile robotic arm is provided with at least one induction coil. The mobile robotic arm is capable of moving on the frame and can move the induction coil to be placed on or pulled out of any of the vacuum containers. A medium-frequency power supply, which is electrically connected to all the aforementioned induction coils; A cooling device, the cooling end of which is disposed within the intermediate frequency power supply to cool the intermediate frequency power supply.

2. The vacuum intermediate frequency casting target device according to claim 1, characterized in that, The mobile robotic arm includes a horizontal slide, a lifter mounted on the horizontal slide, and a lifting seat mounted on the lifting end of the lifter. The horizontal slide is mounted on the frame, all the induction coils are mounted on the lifting seat, and all the vacuum containers are located on both sides of the horizontal slide.

3. The vacuum intermediate frequency casting target apparatus according to claim 2, characterized in that, The lifting seats are all covered with protective covers around the induction coil, and the protective covers are provided with clearance holes on both sides along the axial direction of the induction coil.

4. The vacuum intermediate frequency casting target apparatus according to claim 2, characterized in that, Position gratings are provided on both ends of the horizontal slide on the frame.

5. The vacuum intermediate frequency casting target apparatus according to claim 1, characterized in that, The vacuum pumping device includes a mechanical pump and a diffusion pump, both mounted on the frame. The input end of the mechanical pump is connected to the output end of the diffusion pump via a pipeline. The input end of the diffusion pump is connected to the bottom of all the vacuum containers via a pipeline. A vacuum gauge is installed on the pipeline between the diffusion pump and the vacuum containers.

6. The vacuum intermediate frequency casting target apparatus according to claim 5, characterized in that, An inlet valve and a filter are connected in the pipeline between the diffusion pump and the vacuum container; a control valve is installed in the pipeline between the mechanical pump and the diffusion pump.

7. The vacuum intermediate frequency casting target apparatus according to claim 1, characterized in that, Each vacuum container includes a fixed base, a positioning seat mounted on the fixed base, a ceramic rod mounted on the positioning seat, and a positioning fixture fastened to the top of the ceramic rod. The positioning fixture has a receiving space for accommodating the product. The fixed base is mounted on the frame. A quartz cover is fastened to the positioning seat, and a sealed space is formed between the two. The bottom of the positioning seat is connected to the suction end of the vacuum pump. The quartz cover fastens the ceramic rod and the positioning fixture inside. A high-temperature resistant sealing ring is provided between the lower opening of the quartz cover and the fixed base. The induction coil can be fitted over or pulled out of the quartz cover.

8. The vacuum intermediate frequency casting target apparatus according to claim 1, characterized in that, The cooling device includes a cooling water tank, a water-cooled fan, and water-cooled pipes. The cooling water tank supplies water to the inlet of the water-cooled fan through a water supply pipe. A water supply pump is installed on the water supply pipe. The high-temperature drain end of the water-cooled fan is connected to the inlet of the cooling water tank through a high-temperature resistant hose. The cold water end of the water-cooled fan is connected to the medium-frequency power supply for heat exchange through water-cooled pipes.

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