An ultra-high voltage ceramic vacuum tube shell forming production device and forming process

Abstract

This invention discloses an ultra-high voltage ceramic vacuum tube shell forming production device and forming process, including a support column, a forming mechanism on the outside of the support column, the forming mechanism including a turntable, the body of the turntable being rotatably connected to the outer surface of the support column, a mold being set at equal angles on the top of the turntable, two fixed plates being fixedly connected to the outer surface of the support column, a grinding cylinder being rotatably connected to the body of one of the fixed plates, the interior of the grinding cylinder being arranged with a coarse grinding zone and a fine grinding zone from top to bottom, the body of the turntable having through holes at equal angles, the interior of the through holes being connected to the interior of the grinding cylinder, and a toothed ring being fixedly connected to the outer surface of the turntable. This invention relates to the field of ceramic vacuum tube shell production technology, and solves the problems of existing alumina ceramic vacuum tube shell forming production devices having cumbersome processing steps and requiring a large amount of equipment, resulting in a large actual footprint and reduced actual processing efficiency.

Description

Technical Field

[0001] This invention relates to the field of ceramic vacuum tube shell production technology, specifically to an ultra-high voltage ceramic vacuum tube shell forming production device and forming process. Background Technology

[0002] Alumina ceramics are a highly wear-resistant precision ceramic material. Currently, alumina ceramic tubes are mainly produced using isostatic pressing, which heavily relies on manual labor and requires large equipment footprints. Invention patent CN117719048A discloses a fully automated alumina ceramic vacuum tube shell forming production device and method, including a material conveying mechanism, forming mechanism, transmission mechanism, stamping mechanism, gripping mechanism, turning mechanism, and placement platform. This device automates processes from material conveying, forming, stamping, gripping, turning, and placement, significantly improving production efficiency and product quality, reducing labor costs and energy consumption, and demonstrating strong market competitiveness and economic benefits.

[0003] Although this device has the above advantages, it still has the following drawbacks in practical use: 1) The conveying mechanism of this device needs to go through powder conveying, static pressing molding, finished product conveying and transfer, and then needs to reverse the movement to reset, and perform repeated processing and molding operations, which makes the actual processing steps cumbersome and inefficient. 2) When using this device, a lot of equipment is required and it occupies a lot of space on both sides. At the same time, the alignment between the finished product clamping and transfer, as well as the finished product clamping and fixing for turning, is quite complicated, which leads to a reduction in actual processing efficiency.

[0004] Therefore, it is necessary to address the remaining problems with the aforementioned devices. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an ultra-high voltage ceramic vacuum tube shell forming production device and forming process, which solves the problems of cumbersome processing steps and numerous required equipment in the use of existing alumina ceramic vacuum tube shell forming production devices, resulting in a large actual footprint and reduced actual processing efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a production device for forming ultra-high voltage ceramic vacuum tube shells, comprising a support column, a forming mechanism disposed on the outside of the support column, the forming mechanism comprising a turntable, the body of the turntable being rotatably connected to the outer surface of the support column, a mold being disposed at an equal angle on the top of the turntable, two fixed plates being fixedly connected to the outer surface of the support column, a grinding cylinder being rotatably connected to the body of one of the fixed plates, the grinding cylinder having a coarse grinding zone and a fine grinding zone arranged sequentially from top to bottom inside, the body of the turntable having a through hole, the inside of the through hole being connected to the inside of the grinding cylinder, a gear ring being fixedly connected to the outer surface of the turntable, two gears meshing on the inner arc surface of the gear ring, the shaft ends of the two gears being rotatably connected to the bodies of the two fixed plates respectively, a rotating wheel being fixedly connected to the shaft end of one gear and the outer surface of the grinding cylinder, the outer surfaces of the two rotating wheels being connected by a synchronous belt drive, and a drive motor being fixedly connected to the shaft end of the other gear by a coupling, the outer surface of the drive motor being fixedly connected to the outer surface of the other fixed plate.

[0007] Preferably, a concave shell is rotatably connected to the outer surface of the grinding cylinder, the outer surface of the concave shell is fixedly connected to the outer surface of a fixed plate, a suction pipe is connected through the interior of the concave shell, and a through discharge groove is provided on the body of the grinding cylinder, the interior of the discharge groove is connected to the interior of the concave shell.

[0008] Preferably, the mold is provided with a material control component on its exterior. The material control component includes a vertical cylinder. The body of the vertical cylinder has an air cavity. The bottom of the vertical cylinder has a through air hole. The interior of the air hole is connected to the interior of the air cavity. A slip ring is slidably connected inside the air cavity. A push-pull rod is fixedly connected to the outer surface of the slip ring. One end of the push-pull rod is fixedly connected to the interior of the air cavity.

[0009] Preferably, the exterior of the vertical cylinder is provided with a slide rail, one end of which is fixedly connected to the outer surface of the support column. A linear motor is slidably connected to the outer surface of the slide rail, and a lifting rod is fixedly connected to the outer surface of the linear motor. A rotary motor is fixedly connected to the output end of the lifting rod, and a connecting column is fixedly connected to the output end of the rotary motor. One end of the connecting column is fixedly connected to the interior of the vertical cylinder.

[0010] Preferably, the grinding cylinder is provided with a discharge assembly, which includes a support plate. The outer surface of the support plate is fixedly connected to the outer surface of the support column. A bracket is fixedly connected to the outer surface of the support plate. A sleeve rod is provided on the outside of the bracket. The sleeve rod is located directly below the grinding cylinder. Two rotating rods are fixedly connected to the outer surface of the sleeve rod. One end of each of the two rotating rods is rotatably connected through the body of the bracket. A torsion spring is sleeved on the outside of each of the two rotating rods. The two ends of the torsion spring are fixedly connected to the outer surface of the sleeve rod and the outer surface of the bracket, respectively.

[0011] Preferably, a stop plate is fixedly connected to the outer surface of the rotating rod, and a fixing strip is movably connected to both sides of the outer surface of the stop plate, and the outer surfaces of the fixing strips on both sides are fixedly connected to the outer surface of the bracket.

[0012] Preferably, a material-bearing unit is provided on the outside of the sleeve rod. The material-bearing unit includes an inner cavity, which is formed on the body of the sleeve rod. A piston rod is slidably connected inside the inner cavity. One end of the piston rod is slidably connected through the body of the sleeve rod and extends to the outside of the sleeve rod. A stop ring is fixedly connected to the outer surface of the piston rod.

[0013] Preferably, a belt conveyor is provided outside the piston rod, and rubber strips are fixedly connected at equal intervals on the outer surface of the belt of the belt conveyor.

[0014] Preferably, a magnetic ring is fixedly connected to the outer surface of the piston rod, the outer surface of the magnetic ring is slidably connected to the inside of the inner cavity, and an electromagnet is movably connected to the outside of the magnetic ring by magnetic force, the outer surface of the electromagnet is fixedly connected to the inside of the inner cavity.

[0015] This invention also discloses a molding process for ultra-high voltage ceramic vacuum tube shells, specifically including the following steps: Step 1: First, the granulated powder is evenly added into the mold. Then, the turntable drives the mold to rotate and move to the processing position of the dry bag isostatic press. Then, by applying uniform pressure in all directions to the powder, a rough blank of aluminum ceramic vacuum tube shell is formed. Next, the turntable drives the tube shell rough blank to move to the bottom of the vertical cylinder. The output end of the lifting rod extends and drives the vertical cylinder to descend and fit against the tube shell rough blank. The output end of the push-pull rod retracts and drives the slip ring to slide inside the air chamber to adsorb the tube shell rough blank through negative pressure. Then, the output end of the lifting rod retracts and the linear motor slides along the slide rail to move the tube shell rough blank to the top of the grinding cylinder. Step 2: The lifting rod extends again, causing the tube blank to descend and enter the interior of the grinding cylinder. Subsequently, the turntable drives the gear ring to rotate. Through the meshing of the gear and the gear ring, as well as the transmission between the turntable and the synchronous belt, the grinding cylinder drives the internal coarse grinding zone and fine grinding zone to rotate. This, along with the tube blank entering the grinding cylinder, allows for coarse grinding and fine grinding of the tube blank's surface. Simultaneously, the rotating motor drives the tube blank to rotate in the opposite direction through the connecting column and the vertical cylinder. Step 3: The rough blank of the tube shell processed by the grinding cylinder becomes a qualified aluminum ceramic vacuum tube shell. The aluminum ceramic vacuum tube shell falls through the through hole and fits on the outside of the sleeve rod. Under the action of gravity and the elastic force of the torsion spring, the sleeve rod drives the aluminum ceramic vacuum tube shell to rotate and move towards the belt conveyor. Then, the electromagnet, through the magnetic repulsion between the magnetic ring and the magnet, causes the piston rod to push the aluminum ceramic vacuum tube shell between two adjacent rubber strips through the abutment ring. The rubber strips receive and clamp the aluminum ceramic vacuum tube shell, and then it is transported sequentially by the belt conveyor.

[0016] Beneficial effects This invention provides a production apparatus and process for forming ultra-high voltage ceramic vacuum tube shells. Compared with the prior art, it has the following advantages: (1) By setting up a molding mechanism, the turntable drives the mold to rotate in a circular motion, so that the powder filling, isostatic pressing, surface processing and other steps can be carried out in sequence. Continuous production and processing can be carried out without reversing the motion to reset, thereby improving the overall processing efficiency. At the same time, the mold is radially aligned with the grinding cylinder through the circular motion, which makes it easy for the aluminum ceramic vacuum tube shell to be taken out of the mold and can be easily and quickly put into the grinding cylinder. Through the meshing of gears and gear rings, as well as the transmission connection of the turntable and the synchronous belt, the grinding cylinder rotates to process the surface of the aluminum ceramic vacuum tube shell blank, and the blank can be unloaded through the through hole, thus making the overall molding and processing more convenient and smooth.

[0017] (2) By setting up a material control component, the vertical cylinder and the aluminum ceramic vacuum tube shell are set to the same size. The vertical cylinder can be attached to the top of the aluminum ceramic vacuum tube shell by extending and retracting the output end of the lifting rod. Then, the sliding ring is driven to slide inside the air cavity by extending and retracting the output end of the push-pull rod. The aluminum ceramic vacuum tube shell can be fixed and adsorbed by the negative pressure and through the air hole. This allows the blank of the aluminum ceramic vacuum tube shell to enter the grinding cylinder for surface processing by the traction of the lifting rod and the sliding of the linear motor. At the same time, the rotating motor can drive the blank of the aluminum ceramic vacuum tube shell to rotate through the connecting column to ensure complete surface processing.

[0018] (3) By setting up a material unloading assembly, the sleeve rod and the through hole are set coaxially, so that when the surface-processed aluminum ceramic vacuum tube shell is unloaded through the through hole, it is directly sleeved on the outside of the sleeve rod. The sleeve rod is driven by gravity to rotate around the rotating rod, thereby achieving neat and orderly unloading. During the rotation, the rotation direction can be limited by the action of the torsion spring and the contact action of the abutment plate and the fixed strip, thereby further improving the orderliness and neatness of unloading, and thus facilitating the storage of the aluminum ceramic vacuum tube shell after molding.

[0019] (4) By setting up a material receiving unit, the aluminum ceramic vacuum tube shell is sleeved with the piston rod and abutted by the abutting ring. Then, the piston rod is pressed down by gravity, so that the aluminum ceramic vacuum tube shell can be fully fed through the through hole and rotated around the rotating rod. After rotation, the magnetic effect of the electromagnet and the magnetic ring can be used to make the piston rod slide, so that the abutting ring pushes the aluminum ceramic vacuum tube shell between two adjacent rubber strips. Then, the piston rod is pulled out by reverse sliding, so that the two are separated. It is also convenient for the piston rod to reverse and reset, so as to continuously feed, receive and transport the formed aluminum ceramic vacuum tube shell. Attached Figure Description

[0020] Figure 1 This is a perspective view of the external structure of the present invention; Figure 2 This is a perspective view of the internal structure of the concave shell of the present invention; Figure 3 This is a perspective view of the internal structure of the vertical cylinder of the present invention; Figure 4 This is a perspective view of the external structure of the sleeve rod of the present invention; Figure 5 This is a perspective view of the internal structure of the sleeve rod of the present invention.

[0021] In the diagram: 1. Support column; 2. Turntable; 3. Mold; 4. Material control assembly; 41. Vertical cylinder; 42. Air chamber; 43. Air hole; 44. Slip ring; 45. Push-pull rod; 46. Slide rail; 47. Linear motor; 48. Lifting rod; 49. Rotary motor; 410. Connecting column; 5. Fixed plate; 6. Grinding cylinder; 7. Unloading assembly; 71. Support plate; 72. Bracket; 73. Sleeve rod; 74. Material receiving unit; 741. Inner cavity; 742. Piston rod; 743. Abutment ring; 744. Belt conveyor; 745. Rubber strip; 746. Magnetic ring; 747. Electromagnet; 75. Rotating rod; 76. Torsion spring; 77. Abutment plate; 78. Fixing strip; 8. Through hole; 9. Gear ring; 10. Gear; 11. Rotary wheel; 12. Synchronous belt; 13. Drive motor; 14. Concave shell; 15. Suction pipe; 16. Discharge chute. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figure 1-5 This invention provides a technical solution: a production device for forming ultra-high voltage ceramic vacuum tube shells. The system includes a support column 1, which is fixed to the ground and provides support. A forming mechanism is installed on the outside of the support column 1. The forming mechanism includes a turntable 2, on the outside of which a dry bag isostatic press is located. The turntable 2 rotates, allowing the mold 3 to move to the processing position of the dry bag isostatic press. The connection between the turntable 2 and the support column 1 is equipped with axial limiting measures, which improves both the stability and load-bearing capacity of the turntable 2. The body of the turntable 2 is rotatably connected to the outer surface of the support column 1. The top of the turntable 2 is equipped with a mold 3 at equal angles. The mold 3 consists of a steel mold core and a polyurethane soft sleeve, and can hold granulated powder and perform isostatic pressing. In the machining process, two fixed plates 5 are fixedly connected to the outer surface of the support column 1, which serve as fixed supports. A grinding cylinder 6 is rotatably connected through the body of one fixed plate 5. The inner diameter of the grinding cylinder 6 is greater than or equal to the outer diameter of the standard aluminum-ceramic vacuum tube shell. The grinding cylinder 6 is positioned above the turntable 2 and radially aligned with the mold 3, saving space and reducing the use of traditional turning equipment, thereby reducing machining costs. The interior of the grinding cylinder 6 has a rough grinding zone and a fine grinding zone arranged sequentially from top to bottom. These zones allow for rough and fine grinding of the aluminum-ceramic vacuum tube shell surface as it descends, improving the surface finish. The turntable 2... A through hole 8 is provided, the inner diameter of which is the same as that of the grinding cylinder 6, and the two are coaxially arranged vertically. The number of through holes 8 is the same as that of the mold 3, and they are radially aligned. Preferably, multiple sets of through holes 8 and the grinding cylinder 6 can be arranged at equal angles to facilitate surface processing of multiple aluminum-ceramic vacuum tube shells, and also to facilitate complete surface processing of a single aluminum-ceramic vacuum tube shell. The interior of the through hole 8 is connected to the interior of the grinding cylinder 6. A gear ring 9 is fixedly connected to the outer surface of the turntable 2. The teeth of the gear ring 9 are set on the inner arc surface, and two gears 10 mesh with the inner arc surface of the gear ring 9. The shaft ends of the two gears 10 are respectively... The two fixed plates 5 are rotatably connected through the main body. The shaft end of one gear 10 and the outer surface of the grinding cylinder 6 are both fixedly connected through the rotating wheel 11. A certain transmission ratio can be set between the rotating wheels 11 so that the grinding cylinder 6 can better process the surface of the aluminum ceramic vacuum tube shell. The outer surfaces of the two rotating wheels 11 are connected by a synchronous belt 12. The shaft end of another gear 10 is fixedly connected to a drive motor 13 through a coupling. The drive motor 13 is electrically connected to an external control circuit. Through the meshing of another gear 10 and a gear ring 9, the gear ring 9 drives the turntable 2 to rotate. The outer surface of the drive motor 13 is fixedly connected to the outer surface of the other fixed plate 5.

[0024] A concave shell 14 is rotatably connected to the outer surface of the grinding cylinder 6. The outer surface of the concave shell 14 is fixedly connected to the outer surface of a fixed plate 5. A suction pipe 15 is connected through the inside of the concave shell 14. One end of the suction pipe 15 is connected to an external vacuum cleaner to collect the grinding powder. The main body of the grinding cylinder 6 has a through discharge groove 16. Multiple discharge grooves 16 are set at equal angles to improve the smoothness of the grinding powder suction. The inside of the discharge groove 16 is connected to the inside of the concave shell 14.

[0025] The mold 3 is externally equipped with a material control component 4, which includes a vertical cylinder 41. The vertical cylinder 41 has the same cross-sectional dimensions as the standard aluminum-ceramic vacuum tube shell to facilitate their vertical fit. The vertical cylinder 41, positioned vertically with the turntable 2, transfers the aluminum-ceramic vacuum tube shell blank via radial sliding, further reducing space occupancy. The body of the vertical cylinder 41 has an air cavity 42, and the bottom of the vertical cylinder 41 has through-holes 43. Multiple air holes 43 are arranged at equal angles to improve the uniformity of negative pressure adsorption. This can also improve the firmness of negative pressure adsorption, and a gel suction cup can be set at the air hole 43 to further improve the sealing and firmness of negative pressure adsorption. The inside of the air hole 43 is connected to the inside of the air chamber 42. A slip ring 44 is slidably connected inside the air chamber 42. The slip ring 44 is made of a pressure-resistant, wear-resistant and well-sealing material. A push-pull rod 45 is fixedly connected to the outer surface of the slip ring 44. The push-pull rod 45 is made of an electric push rod and is electrically connected to an external control circuit. One end of the push-pull rod 45 is fixedly connected to the inside of the air chamber 42.

[0026] The vertical cylinder 41 is provided with a slide rail 46 on its exterior. One end of the slide rail 46 is fixedly connected to the outer surface of the support column 1. A linear motor 47 is slidably connected to the outer surface of the slide rail 46. The linear motor 47 is electrically connected to an external control circuit and has a self-locking function. A lifting rod 48 is fixedly connected to the outer surface of the linear motor 47. A rotary motor 49 is fixedly connected to the output end of the lifting rod 48. The rotary motor 49 is electrically connected to an external control circuit and has a rotating power supply element on its surface to provide rotational power to the push-pull rod 45. A connecting column 410 is fixedly connected to the output end of the rotary motor 49. The connecting column 410 serves as a fixed connection and is provided at equal angles to improve the stability and load-bearing capacity of the vertical cylinder 41. One end of the connecting column 410 is fixedly connected to the interior of the vertical cylinder 41.

[0027] The grinding cylinder 6 is equipped with a discharge assembly 7, which includes a support plate 71. The support plate 71 provides a fixed support and is fixedly connected to the outer surface of the support column 1. A bracket 72 is fixedly connected to the outer surface of the support plate 71. A sleeve rod 73 is provided on the outside of the bracket 72. The outer diameter of the sleeve rod 73 is less than or equal to the inner diameter of the standard aluminum ceramic vacuum tube shell. The sleeve rod 73 is located directly below the grinding cylinder 6. Two rotating rods 75 are fixedly connected to the outer surface of the sleeve rod 73. The two rotating rods 75 are mirror images of each other and are located near the lower end of the sleeve rod 73 so that the aluminum ceramic vacuum tube shell can drive the sleeve rod 73 to rotate and discharge material under the action of gravity. One end of each of the two rotating rods 75 is rotatably connected to the body of the bracket 72. A torsion spring 76 is sleeved on the outside of each of the two rotating rods 75. The torsion spring 76 can facilitate the reverse rotation and reset of the sleeve rod 73 by rebound. The two ends of the torsion spring 76 are fixedly connected to the outer surface of the sleeve rod 73 and the bracket 72, respectively.

[0028] A stop plate 77 is fixedly connected to the outer surface of the rotating rod 75. The stop plate 77 is made of a pressure-resistant and wear-resistant material. Two fixed strips 78 are movably connected to both sides of the outer surface of the stop plate 77. The two fixed strips 78 restrict the rotation direction and angle of the sleeve rod 73, so that the sleeve rod 73 can only rotate 90° to one side, so as to facilitate the orderly unloading of the aluminum ceramic vacuum tube shell. The outer surfaces of the two fixed strips 78 are fixedly connected to the outer surface of the bracket 72.

[0029] The sleeve rod 73 is provided with a material receiving unit 74 on its outside. The material receiving unit 74 includes an inner cavity 741, which is filled with a certain amount of air to support the piston rod 742 through air pressure. The inner cavity 741 is opened on the body of the sleeve rod 73. The piston rod 742 is slidably connected inside the inner cavity 741. By sliding into the inner cavity 741, the piston rod 742 can facilitate the rotational unloading of the aluminum ceramic vacuum tube shell after it has been completely unloaded. One end of the piston rod 742 is slidably connected to the body of the sleeve rod 73 and extends to the outside of the sleeve rod 73. A retaining ring 743 is fixedly connected to the outer surface of the piston rod 742. The outer diameter of the retaining ring 743 is smaller than the outer diameter of the aluminum ceramic vacuum tube shell but larger than the inner diameter of the aluminum ceramic vacuum tube shell, so as to partially support it and facilitate the unloading operation of the aluminum ceramic vacuum tube shell.

[0030] A belt conveyor 744 is installed outside the piston rod 742. The frame of the belt conveyor 744 is fixed on the ground. The drive motor is electrically connected to the external control circuit. A robotic arm can be installed outside to pick up and stack aluminum ceramic vacuum tube shells. Rubber strips 745 are fixedly connected at equal intervals on the outer surface of the belt of the belt conveyor 744. The rubber strips 745 are arranged in an isosceles triangular shape. When the aluminum ceramic vacuum tube shell abuts against two adjacent rubber strips 745, the stability of the aluminum ceramic vacuum tube shell can be improved through the lateral component force, preventing it from rolling and shifting laterally.

[0031] A magnetic ring 746 is fixedly connected to the outer surface of the piston rod 742. The magnetic ring 746 is made of a permanent magnet. The outer surface of the magnetic ring 746 is slidably connected to the inside of the inner cavity 741. An electromagnet 747 is movably connected to the outside of the magnetic ring 746 by magnetic force. The electromagnet 747 is electrically connected to an external control circuit. By attracting or repelling the magnetic ring 746, the piston rod 742 can be controlled to slide, thereby pushing the rotated aluminum ceramic vacuum tube shell between two adjacent rubber strips 745. Then, the piston rod 742 slides in the opposite direction to remove the shell, so that the sleeve rod 73 can be reversed and reset, thereby realizing the continuous unloading operation of the aluminum ceramic vacuum tube shell. The outer surface of the electromagnet 747 is fixedly connected to the inside of the inner cavity 741.

[0032] This invention also discloses a molding process for ultra-high voltage ceramic vacuum tube shells, specifically including the following steps: Step 1: First, the granulated powder is evenly added into the interior of the mold 3. Then, the turntable 2 drives the mold 3 to rotate and move to the processing position of the dry bag isostatic press. Then, by applying uniform pressure in all directions to the powder, a rough blank of aluminum ceramic vacuum tube shell is formed. Next, the turntable 2 drives the tube shell rough blank to move to the bottom of the vertical cylinder 41. The output end of the lifting rod 48 extends and drives the vertical cylinder 41 to descend and fit against the tube shell rough blank. The output end of the push-pull rod 45 retracts and drives the slip ring 44 to slide inside the air chamber 42 to adsorb the tube shell rough blank through negative pressure. Then, the output end of the lifting rod 48 retracts and the linear motor 47 slides along the slide rail 46, so that the tube shell rough blank is first pulled out from the interior of the mold 3 and then moves to the top of the grinding cylinder 6. Step 2: The output end of the lifting rod 48 extends again, causing the tube blank to descend and enter the interior of the grinding cylinder 6. Subsequently, the turntable 2 drives the gear ring 9 to rotate. Through the meshing of the gear 10 and the gear ring 9, and the transmission of the turntable 11 and the synchronous belt 12, the grinding cylinder 6 drives the internal coarse grinding area and fine grinding area to rotate. This, along with the tube blank entering the interior of the grinding cylinder 6, allows for coarse grinding and fine grinding of the surface of the tube blank. At the same time, the rotating motor 49 drives the tube blank to rotate in the opposite direction through the connecting column 410 and the vertical cylinder 41, so as to achieve complete grinding of the surface of the tube blank. Step 3: The tube blank processed by the grinding cylinder 6 becomes a qualified aluminum ceramic vacuum tube shell. The aluminum ceramic vacuum tube shell falls through the through hole 8 and fits on the outside of the sleeve rod 73. Under the action of gravity and the elastic force of the torsion spring 76, the sleeve rod 73 drives the aluminum ceramic vacuum tube shell to rotate and move towards the belt conveyor 744. Then, the electromagnet 747, through the magnetic repulsion between the magnetic ring 746, causes the piston rod 742 to push the aluminum ceramic vacuum tube shell between two adjacent rubber strips 745 through the abutment ring 743. The rubber strips 745 receive and clamp the aluminum ceramic vacuum tube shell, and then it is transported sequentially by the belt conveyor 744.

[0033] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A production device for forming ultra-high voltage ceramic vacuum tube shells, comprising a support column (1), characterized in that: A forming mechanism is provided on the outside of the support column (1). The forming mechanism includes a turntable (2). The body of the turntable (2) is rotatably connected to the outer surface of the support column (1). A mold (3) is provided at the top of the turntable (2) at equal angles. Two fixed plates (5) are fixedly connected to the outer surface of the support column (1). A grinding cylinder (6) is rotatably connected to the body of one of the fixed plates (5). The grinding cylinder (6) has a coarse grinding area and a fine grinding area arranged from top to bottom. The body of the turntable (2) has a through hole (8). The inside of the through hole (8) is connected to the inside of the grinding cylinder (6). A gear ring (9) is fixedly connected to the outer surface of the disc (2). Two gears (10) mesh with the inner arc surface of the gear ring (9). The shaft ends of the two gears (10) are respectively rotatably connected to the bodies of the two fixed plates (5). A rotating wheel (11) is fixedly connected to the shaft end of one gear (10) and the outer surface of the grinding cylinder (6). The outer surfaces of the two rotating wheels (11) are connected by a synchronous belt (12). The shaft end of the other gear (10) is fixedly connected to a drive motor (13) through a coupling. The outer surface of the drive motor (13) is fixedly connected to the outer surface of the other fixed plate (5).

2. The ultra-high voltage ceramic vacuum tube shell forming production device according to claim 1, characterized in that: The outer surface of the grinding cylinder (6) is rotatably connected to a concave shell (14), the outer surface of the concave shell (14) is fixedly connected to the outer surface of a fixed plate (5), the interior of the concave shell (14) is connected to a suction pipe (15), the body of the grinding cylinder (6) is provided with a through discharge groove (16), and the interior of the discharge groove (16) is connected to the interior of the concave shell (14).

3. The ultra-high voltage ceramic vacuum tube shell forming production device according to claim 1, characterized in that: The mold (3) is provided with a material control component (4) on its exterior. The material control component (4) includes a vertical cylinder (41). The body of the vertical cylinder (41) has an air cavity (42). The bottom of the vertical cylinder (41) has a through air hole (43). The interior of the air hole (43) is connected to the interior of the air cavity (42). A slip ring (44) is slidably connected inside the air cavity (42). A push-pull rod (45) is fixedly connected to the outer surface of the slip ring (44). One end of the push-pull rod (45) is fixedly connected to the interior of the air cavity (42).

4. The ultra-high voltage ceramic vacuum tube shell forming production device according to claim 3, characterized in that: The vertical cylinder (41) is provided with a slide rail (46) on its outside. One end of the slide rail (46) is fixedly connected to the outer surface of the support column (1). A linear motor (47) is slidably connected to the outer surface of the slide rail (46). A lifting rod (48) is fixedly connected to the outer surface of the linear motor (47). A rotary motor (49) is fixedly connected to the output end of the lifting rod (48). A connecting column (410) is fixedly connected to the output end of the rotary motor (49). One end of the connecting column (410) is fixedly connected to the inside of the vertical cylinder (41).

5. The ultra-high voltage ceramic vacuum tube shell forming production device according to claim 1, characterized in that: The grinding cylinder (6) is provided with a discharge assembly (7) on its outside. The discharge assembly (7) includes a support plate (71). The outer surface of the support plate (71) is fixedly connected to the outer surface of the support column (1). A bracket (72) is fixedly connected to the outer surface of the support plate (71). A sleeve rod (73) is provided on the outside of the bracket (72). The sleeve rod (73) is located directly below the grinding cylinder (6). Two rotating rods (75) are fixedly connected to the outer surface of the sleeve rod (73). One end of each of the two rotating rods (75) is rotatably connected through the body of the bracket (72). A torsion spring (76) is sleeved on the outside of each of the two rotating rods (75). The two ends of the torsion spring (76) are fixedly connected to the outer surfaces of the sleeve rod (73) and the bracket (72), respectively.

6. The ultra-high voltage ceramic vacuum tube shell forming production device according to claim 5, characterized in that: The outer surface of the rotating rod (75) is fixedly connected to a stop plate (77), and both sides of the outer surface of the stop plate (77) are movably connected to a fixing strip (78), and the outer surfaces of the fixing strips (78) on both sides are fixedly connected to the outer surface of the bracket (72).

7. The ultra-high voltage ceramic vacuum tube shell forming production device according to claim 5, characterized in that: The sleeve (73) is provided with a material receiving unit (74) on its outside. The material receiving unit (74) includes an inner cavity (741). The inner cavity (741) is opened on the body of the sleeve (73). A piston rod (742) is slidably connected inside the inner cavity (741). One end of the piston rod (742) is slidably connected through the body of the sleeve (73) and extends to the outside of the sleeve (73). A stop ring (743) is fixedly connected to the outer surface of the piston rod (742).

8. The ultra-high voltage ceramic vacuum tube shell forming production device according to claim 7, characterized in that: A belt conveyor (744) is provided outside the piston rod (742), and rubber strips (745) are fixedly connected at equal intervals on the outer surface of the belt of the belt conveyor (744).

9. The ultra-high voltage ceramic vacuum tube shell forming production device according to claim 7, characterized in that: A magnetic ring (746) is fixedly connected to the outer surface of the piston rod (742). The outer surface of the magnetic ring (746) is slidably connected to the inside of the inner cavity (741). An electromagnet (747) is movably connected to the outside of the magnetic ring (746) by magnetic force. The outer surface of the electromagnet (747) is fixedly connected to the inside of the inner cavity (741).

10. A process for forming ultra-high voltage ceramic vacuum tube shells, using the ultra-high voltage ceramic vacuum tube shell forming production apparatus according to any one of claims 1-9, characterized in that: Specifically, the following steps are included: Step 1: First, the granulated powder is evenly added into the mold (3). Then, the turntable (2) drives the mold (3) to rotate to the processing position of the dry bag isostatic press. Then, by applying uniform pressure to the powder, it forms a rough blank of aluminum ceramic vacuum tube shell. Next, the turntable (2) drives the tube shell rough blank to move to the bottom of the vertical cylinder (41). The output end of the lifting rod (48) extends and drives the vertical cylinder (41) to descend and fit against the tube shell rough blank. By retracting the output end of the push-pull rod (45), the slip ring (44) slides inside the air chamber (42) to adsorb the tube shell rough blank through negative pressure. Then, the output end of the lifting rod (48) retracts, and by sliding the linear motor (47) along the slide rail (46), the tube shell rough blank moves to the top of the grinding cylinder (6). Step 2: The output end of the lifting rod (48) extends again, causing the tube blank to descend and enter the interior of the grinding cylinder (6). Subsequently, the turntable (2) drives the gear ring (9) to rotate. Through the meshing of the gear (10) and the gear ring (9) and the transmission of the wheel (11) and the synchronous belt (12), the grinding cylinder (6) drives the internal coarse grinding area and fine grinding area to rotate, and cooperates with the tube blank to enter the interior of the grinding cylinder (6) to perform coarse grinding and fine grinding on the surface of the tube blank respectively. At the same time, the rotating motor (49) drives the tube blank to rotate in the opposite direction through the connecting column (410) and the vertical cylinder (41). Step 3: The tube blank processed by the grinding cylinder (6) becomes a qualified aluminum ceramic vacuum tube shell, and the aluminum ceramic vacuum tube shell falls through the through hole (8) and fits on the outside of the sleeve rod (73). Through the action of gravity and the elastic force of the torsion spring (76), the sleeve rod (73) drives the aluminum ceramic vacuum tube shell to rotate and move towards the belt conveyor (744). Then, the electromagnet (747) causes the piston rod (742) to push the aluminum ceramic vacuum tube shell between two adjacent rubber strips (745) through the magnetic repulsion between the electromagnet (747) and the magnetic ring (746). The rubber strips (745) receive and clamp the aluminum ceramic vacuum tube shell, and then it is transported sequentially by the belt conveyor (744).

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