A magnetic levitation bearing rotor core pressing device and its usage method

Abstract

The present invention relates to a magnetic levitation bearing rotor core pressing device in the field of bearing processing, including a workbench and a rotor core main body. The rotor core main body includes a housing. A rotating table matching the rotor core main body is installed on the workbench. A core group is installed inside the housing, and a tooling ring is installed on the core group. A bracket is fixedly connected to the workbench, and a pressing installation mechanism for installing a pressing tooling is installed on the bracket; the pressing installation mechanism includes a control box, a pressurizing device is installed inside the control box, the movable end of the pressurizing device is fixedly connected to a pressing plate, and a pair of clamping blocks are connected to the lower end of the pressing plate through an electric guide rail; an installation hole is opened in the middle of the pressing plate, a rotating arm is rotatably connected inside the installation hole, and a warning unit is arranged between the pressing tooling and the housing to realize automatic pressing of the rotor core. After pressing, a marking liquid is injected into the sealed space so that an alarm can be given in time when the fastener is loose, and the pressing tooling can be quickly replaced to adapt to rotor cores of different models.

Description

Technical Field

[0001] A magnetic levitation bearing rotor core pressing device and its usage method involved in the present invention, in particular, a magnetic levitation bearing rotor core pressing device and its usage method applied to the bearing processing field. Background Art

[0002] As a new type of high-performance bearing that uses magnetic force to achieve the shaft and load floating in space without mechanical friction and lubrication, magnetic levitation bearings have a wide range of applications in modern industry. The stable suspension and precise positioning of its rotor rely on the coordinated work of multiple components, among which the rotor core pressing tooling is one of the key components to ensure the stable operation of the magnetic levitation bearing.

[0003] In the prior art, the design of the magnetic levitation bearing rotor core pressing tooling mainly focuses on providing a stable pressing force to prevent the rotor core from loosening or displacing during operation. Such a device usually adopts a mechanical pressing structure, such as fasteners like bolts and nuts, to firmly fix the rotor core on the bearing seat or bracket. By adjusting the pre-tightening force of the fasteners, precise control of the pressing degree of the rotor core can be achieved.

[0004] The specification of Chinese invention patent CN109940545B discloses a bearing installer. The bearing installer provided by this invention uses an electromagnetic method to press the bearing, the bearing is evenly stressed, and the installation process of the bearing does not require manual knocking, protecting the safety of the staff.

[0005] The specification of Chinese invention patent CN114850816A discloses a bearing installation pressing structure, belonging to the technical field of bearing installation. It includes a base, a sliding table, a fixed seat, a guide rail, and a first push rod. The bearing installation pressing structure disclosed by this invention adopts an assembly line operation mode for the installation of planetary shafts, greatly improving the installation efficiency. At the same time, the cooperation between various instruments can effectively improve the assembly accuracy and reduce the rejection rate.

[0006] The existing rotor core pressing tooling is prone to looseness defects after long-term use, which in turn causes the pressing force to decrease and the rotor core to loosen. Such looseness not only affects the stability and accuracy of the equipment, but may also lead to increased noise, intensified vibration, and even cause failures. At present, it is not easy to detect when the existing rotor core pressing tooling is loose, and it is inconvenient to give an early warning when it is loose. Summary of the Invention

[0007] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that the existing rotor core pressing tooling is prone to loosening defects after long-term use, which in turn causes the pressing force to decrease and the rotor core to loosen. This loosening not only affects the stability and accuracy of the equipment, but also may lead to increased noise, intensified vibration, and even cause failures. At present, it is not easy to detect when the existing rotor core pressing tooling is loose, and it is inconvenient to give an early warning when it is loose.

[0008] To solve the above problems, the present invention provides a magnetic levitation bearing rotor core pressing device, which includes a workbench and a rotor core main body. The rotor core main body includes a housing. A rotating table matching the rotor core main body is installed on the workbench. An iron core group is installed in the housing, a tooling ring is installed on the iron core group, a bracket is fixedly connected to the workbench, and a pressing installation mechanism for installing the pressing tooling is installed on the bracket;

[0009] The pressing installation mechanism includes a control box. A pressurizing device is installed in the control box. The movable end of the pressurizing device is fixedly connected to a pressurizing plate. A pair of clamping blocks are connected to the lower end of the pressurizing plate through an electric guide rail;

[0010] An installation hole is opened in the middle of the pressurizing plate. A rotating arm is rotatably connected in the installation hole. The rotating arm includes a main arm plate. A motor matching the main arm plate is installed in the control box. A telescopic shaft is connected between the power output end of the motor and the main arm plate; A pair of movable platforms are connected to the lower end of the main arm plate through an electric slide rail, and a pressing block is fixedly connected to the lower end of the movable platform;

[0011] The pressing tooling includes a pressing ring main body. An elastic rubber layer is laid on the lower end of the pressing ring main body. A plurality of uniformly distributed through holes are opened at the lower end of the pressing ring main body. A sealing cover is clamped at the opening of the through hole. An air hole communicating with the through hole is opened at the side end of the pressing ring main body, and a heat melting tube is inserted into the air hole;

[0012] An early warning unit is arranged between the pressing tooling and the housing. The early warning unit includes a hollow bolt. The hollow bolt penetrates through the tooling ring and is threadedly connected to the housing. A positioning column is inserted in the middle of the hollow bolt. The two ends of the positioning column are respectively connected to the housing and the sealing cover. The top end of the hollow bolt is fixedly connected to a piston cover matching the through hole. A sealed space is formed between the piston cover and the sealing cover, and a marking liquid is filled in the sealed space.

[0013] In the above-mentioned magnetic levitation bearing rotor core pressing device, it is convenient to realize the automatic installation of the pressing tooling, and the pressing tooling is convenient for detecting the loosening of the tooling ring.

[0014] As a further improvement of the present application, a cross groove is opened at the top end of the sealing cover. A wiring plug matching the pressure sensor is installed in the middle of the cross groove. An auxiliary motor is fixedly connected to the pressing block. The power output end of the auxiliary motor is connected to an adjusting head matching the sealing cover through an electric telescopic rod.

[0015] As a further improvement of the present application, a pair of mounting grooves are formed on the inner wall of the clamping block. A heater and an infusion tube are respectively installed in the pair of mounting grooves. The output end of the infusion tube is installed with a nozzle matching the air hole. A joint is installed at the upper end of the pressing plate, and the joint communicates with the nozzle through the infusion tube.

[0016] As a further improvement of the present application, a pressure sensor is installed in the sealing cover, and the detection end of the pressure sensor is located in the through hole.

[0017] As another improvement of the present application, the marking liquid includes a colored liquid and a colored sealing oil.

[0018] As a supplement to another improvement of the present application, the heat fusion tube includes an outer tube and an inner tube. The outer tube is made of a heat-resistant material, and the outer tube is clamped with the inner wall of the air hole. The inner tube is made of a heat fusion material, and the melting temperature of the inner tube is 60 degrees Celsius.

[0019] As a supplement to another improvement of the present application, the marking liquid includes a colored liquid and a colored sealing oil.

[0020] As a supplement to another improvement of the present application, the heat fusion tube includes an outer tube and an inner tube. The outer tube is made of a heat-resistant material, and the outer tube is clamped with the inner wall of the air hole. The inner tube is made of a heat fusion material, and the melting temperature of the inner tube is 60 degrees Celsius.

[0021] It further includes an auxiliary pressing system. The auxiliary pressing system includes a processor, and a control module, a monitoring module, a data processing module, and a data storage module are connected to the processor;

[0022] The control module is used to receive and process data from the monitoring module, and perform automatic control on the pressing and mounting mechanism according to preset algorithms and logics;

[0023] The monitoring module is used to monitor and collect the working state data of the pressing tool in real time;

[0024] The data processing module is used to process and analyze the data collected by the monitoring module, and judge whether the pressing tool is loose or there are other abnormal conditions according to the preset alarm threshold;

[0025] The data storage module is used to store the data collected by the monitoring module and the results calculated by the data processing module.

[0026] The using method of the magnetic suspension bearing rotor core pressing device specifically includes:

[0027] A1. Install the pressing tooling. Clamp the pressing tooling with a pair of clamping blocks, and use the electric guide rail to adjust the position of the clamping blocks to ensure that the main body of the pressing ring is aligned with the tooling ring; start the pressurizing device through the control box, drive the pressing plate to press down, so that the elastic rubber layer contacts the tooling ring to form a preliminary pressing;

[0028] A2. Construction of the sealed space and injection of the marking liquid; adjust the position of the clamping block so that the position of the nozzle matches and docks with the position of the air hole; then the nozzle injects the marking liquid into the air hole through the infusion tube to fill the sealed space between the piston cover and the sealing cover until the pressure detection value reaches the set value;

[0029] Adjust the position of the clamping block again so that the heater matches the position of the air hole, and heat the hot melt tube through the heater to melt it;

[0030] The clamping block resets, then drives the rotating rotor core body to rotate a set angle, and then repeats the above operations until the marking liquid is filled in multiple sealed spaces;

[0031] A3. Compression and adjustment: Start the motor to drive the rotating arm to rotate a set angle, and then turn on the pressurizing device to apply uniform pressure to the position of the sealed space by the pressing block; at this time, detect the change of the pressure detection value. If the pressure detection value changes outside the set value range, control the regulating head to work to rotate the sealing cover to adjust the position of the sealing cover, thereby adjusting the hydraulic pressure in the sealed space and adjusting the hydraulic pressure in the sealed space to within the set range;

[0032] A4. Snap in the protective gasket covering the sealing cover at the opening of the through hole to complete the compression and installation; when the device is in use, remove the protective gasket, and then connect the pressure sensor to monitor the sealed space during use.

[0033] In summary, this solution facilitates the automatic compression of the rotor core. After compression, inject the marking liquid into the sealed space, then detect the pressure detection value after filling the marking liquid through the pressure sensor, and set the alarm threshold according to the pressure detection value so that an alarm can be given in time when the fastener becomes loose, and the compression tooling can be quickly replaced to adapt to different models of rotor cores. Description of the Drawings

[0034] Figure 1 Is the three-dimensional view of the device according to the first embodiment of the present application;

[0035] Figure 2 Is Figure 1 The structural schematic diagram of part A in

[0036] Figure 3 Is the side sectional view of the device according to the first embodiment of the present application;

[0037] Figure 4 Is Figure 3 The structural schematic diagram of part B in

[0038] Figure 5 Is Figure 4 The structural schematic diagram of part C in

[0039] Figure 6Front cross-sectional view of the device according to the first embodiment of the present application;

[0040] Figure 7 Block diagram of the auxiliary pressing system according to the second embodiment of the present application;

[0041] Figure 8 Flowchart of the usage method according to the third embodiment of the present application.

[0042] Description of the reference numerals in the figure:

[0043] 1. Rotor core main body; 11. Housing; 12. Tooling ring; 2. Bracket; 3. Pressing and installing mechanism; 31. Control box; 32. Pressing plate; 33. Clamping block; 4. Rotating arm; 41. Main arm plate; 42. Moving table; 43. Pressing block; 44. Auxiliary motor; 45. Adjusting head; 5. Pressing tooling; 51. Pressing ring main body; 52. Elastic rubber layer; 53. Sealing cover; 54. Heat fusion pipe; 6. Early warning unit; 61. Hollow bolt; 62. Positioning column; 63. Piston cover. Specific embodiments

[0044] The following will describe in detail the three embodiments of the present application with reference to the accompanying drawings.

[0045] The first embodiment:

[0046] Figures 1-6 As shown, a magnetic levitation bearing rotor core pressing device includes a workbench and a rotor core main body 1. A rotating table matching the rotor core main body is installed on the workbench. The rotating table is used to place the rotor core main body 1 and drive it to rotate. The rotor core main body includes a housing 11, and a core group is installed inside the housing 11. A tooling ring 12 is installed on the core group. The tooling ring 12 is a prior art and is used to press and fix the core group;

[0047] A bracket 2 is fixedly connected to the workbench, and a pressing and installing mechanism 3 for installing a pressing tooling 5 is installed on the bracket 2;

[0048] The pressing and installing mechanism 3 includes a control box 31. A pressing device is installed inside the control box 31. The movable end of the pressing device is fixedly connected to a pressing plate 32. The lower end of the pressing plate 32 is connected to a pair of clamping blocks 33 through an electric guide rail; A pair of installation grooves are opened on the inner wall of the clamping block 33, and a heater and an infusion pipe are respectively installed in the pair of installation grooves. The output end of the infusion pipe is installed with a nozzle matching the air hole. A joint is installed at the upper end of the pressing plate 32, and the joint is communicated with the nozzle through the infusion pipe; The heater is used to heat the heat fusion pipe 54 to make it melt; The nozzle is used to inject a marking liquid into the air hole, so that the sealing space is filled with the marking liquid;

[0049] A mounting hole is formed in the middle of the pressing plate 32, and a rotating arm 4 is rotatably connected in the mounting hole. The rotating arm 4 includes a main arm plate 41. A motor matching the main arm plate 41 is installed in the control box 31, and a telescopic shaft is connected between the power output end of the motor and the main arm plate 41. The motor is used to drive the rotating arm 4 to rotate;

[0050] A pair of movable platforms 42 are connected to the lower end of the main arm plate 41 through an electric slide rail, and a pressing block 43 is fixedly connected to the lower end of the movable platform 42;

[0051] The pressing tooling 5 includes a pressing ring body 51. An elastic rubber layer 52 is laid on the lower end of the pressing ring body 51. A plurality of uniformly distributed through holes are formed in the lower end of the pressing ring body 51. A sealing cover 53 is clamped at the opening of the through hole. An air hole communicating with the through hole is formed in the side end of the pressing ring body 51, and a heat melting pipe 54 is inserted into the air hole; A pressure sensor is installed in the sealing cover 53, and the detection end of the pressure sensor is located in the through hole;

[0052] A cross groove is formed at the top end of the sealing cover 53, and a wiring plug matching the pressure sensor is installed in the middle of the cross groove. An auxiliary motor 44 is fixedly connected to the pressing block 43, and a regulating head 45 matching the sealing cover 53 is connected to the power output end of the auxiliary motor 44 through an electric extension rod. The regulating head 45 includes a cross shaft, and a docking joint matching the wiring plug is installed in the middle of the cross shaft. The regulating head 45 is used to rotate the sealing cover 53 to adjust the position of the sealing cover 53.

[0053] An early warning unit 6 is arranged between the pressing tooling 5 and the housing 11. The early warning unit 6 includes a hollow bolt 61. The hollow bolt 61 penetrates through the tooling ring 12 and is threadedly connected to the housing 11. A positioning column 62 is inserted into the middle of the hollow bolt 61. Two ends of the positioning column 62 are respectively connected to the housing 11 and the sealing cover 53. One end of the positioning column 62 is fixedly connected to the housing 11, and the other end of the positioning column 62 is threadedly connected to the sealing cover 53. A threaded groove is formed at the bottom of the sealing cover 53. A piston cover 63 matching the through hole is fixedly connected to the top end of the hollow bolt 61. A sealed space is formed between the piston cover 63 and the sealing cover 53, and a marking liquid is filled in the sealed space; The elastic rubber layer 52 is used for buffering and sealing the sealed space; After the pressing tooling 5 is installed, the top end of the piston cover 63 is located in the through hole;

[0054] When the pre-tightening force between the tooling ring 12 and the iron core decreases, the tooling ring 12 floats or vibrates, thereby causing the piston cover 63 to squeeze the marking liquid in the sealed space, thereby enabling the pressure sensor at the sealing cover 53 to detect a pressure value, and further determining that the pressing tooling 5 is loose;

[0055] When the device is used without connecting the pressure sensor, when the pre-tightening force decreases and the vibration amplitude of the tooling ring 12 is large, when the hydraulic pressure in the sealed space is too high and the hot-melt pipe 54 is pushed outwards, the marking liquid leaks out. By detecting the liquid leakage with an externally installed sensor, it can be judged whether the tooling ring 12 is loose;

[0056] Those skilled in the art can select a suitable sensor in the prior art for external installation to detect liquid leakage;

[0057] This solution facilitates the realization of automatic pressing of the rotor core. After pressing, the marking liquid is injected into the sealed space, and then the pressure detection value after filling the marking liquid is detected by the pressure sensor, and the alarm threshold is set according to the pressure detection value, so that an alarm can be given in time when the fastener is loose, and the pressing tool 5 can be quickly replaced to adapt to different models of rotor cores.

[0058] The 3rd implementation mode:

[0059] Figures 1-7 As shown, it further includes an auxiliary pressing system. The auxiliary pressing system includes a processor, and a control module, a monitoring module, a data processing module and a data storage module are connected to the processor;

[0060] The control module is used to receive and process data from the monitoring module, and perform automatic control on the pressing and installation mechanism 3 according to preset algorithms and logics. By connecting with devices such as motors and electric guides, the control module can achieve precise adjustment of the position, pressure and rotation angle of the pressing tool.

[0061] The monitoring module is used to monitor and collect the working state data of the pressing tool in real time. The working state data includes parameters such as pressing force, pressing position, and temperature. It collects data in real time through connection with devices such as pressure sensors and temperature sensors and transmits the data to the control module; during the injection process of the marking liquid, the monitoring module can also monitor the pressure change of the pressure sensor to ensure that the filling amount of the marking liquid meets the requirements.

[0062] The data processing module is used to process and analyze the data collected by the monitoring module, and judge whether the pressing tool is loose or there are other abnormal situations according to the preset alarm threshold. When an abnormal situation is detected, the data processing module will send an instruction to the control module to trigger the alarm mechanism.

[0063] The data storage module is used to store the data collected by the monitoring module and the results calculated by the data processing module.

[0064] The control module realizes precise control of the position and pressing pressure of the pressing tooling 5 by connecting devices such as motors and electric guide rails. The monitoring module monitors the working state of the pressing process in real time by connecting devices such as pressure sensors and temperature sensors. The data processing module receives the data from the monitoring module, processes and analyzes it, and determines whether the pressing tooling is loose or there are other abnormal conditions. When abnormal conditions are detected, the data processing module issues an instruction to the control module to trigger the alarm mechanism.

[0065] The third implementation method:

[0066] Figure 8 It shows that the specific usage method of the magnetic levitation bearing rotor core pressing device includes:

[0067] A1. Install the pressing tooling 5. Clamp the pressing tooling 5 with a pair of clamping blocks 33 and use the electric guide rail to adjust the position of the clamping blocks 33 to ensure that the pressing ring body 51 is aligned with the tooling ring 12; start the pressurizing device through the control box 31, drive the pressing plate 32 to press down, and make the elastic rubber layer 52 contact the tooling ring 12 to form a preliminary pressing.

[0068] A2. Seal space construction and marker liquid injection; adjust the position of the clamping blocks 33 to match the position of the nozzle with the position of the air hole and dock; then the nozzle injects the marker liquid into the air hole through the infusion tube to fill the sealed space between the filling piston cover 63 and the sealing cover 53 until the pressure detection value reaches the set value;

[0069] Adjust the position of the clamping blocks 33 again to match the position of the heater with the position of the air hole, and heat the heat - melting tube 54 through the heater to melt it.

[0070] The clamping blocks 33 reset, then drive the rotating rotor core body 1 to rotate a set angle, and then repeat the above operations until the marker liquid filling is completed for multiple sealed spaces.

[0071] A3. Pressing and adjustment. Start the motor to drive the rotating arm 4 to rotate a set angle, and then turn on the pressurizing device to make the pressing block 43 apply uniform pressure to the position of the sealed space; at this time, detect the change of the pressure detection value. If the pressure detection value changes outside the set value range, then make the sealing cover 53 rotate by controlling the adjustment head 45 to adjust the position of the sealing cover 53, thereby adjusting the hydraulic pressure in the sealed space and adjusting the hydraulic pressure in the sealed space to within the set range.

[0072] A4. Insert a protective gasket covering the sealing cover 53 at the opening of the through - hole to complete the pressing and installation; when the equipment is in use, remove the protective gasket, and then connect the pressure sensor to monitor the sealed space during use.

[0073] Combined with the current actual requirements, the above-described embodiments adopted in the present application do not limit the scope of protection thereto. Within the scope of knowledge possessed by those skilled in the art, various changes made without departing from the concept of the present application still fall within the scope of protection of the present invention.

Claims

1. A magnetic levitation bearing rotor core pressing device, comprising a workbench and a rotor core body (1). A rotating table matching the rotor core body (1) is installed on the workbench. The rotor core body (1) includes a housing (11), a core group is installed in the housing (11), and a tooling ring (12) is installed on the core group. It is characterized in that: A bracket (2) is fixedly connected to the workbench, and a pressing and mounting mechanism (3) for mounting a pressing tooling (5) is mounted on the bracket (2); The pressing and mounting mechanism (3) includes a control box (31). A pressurizing device is mounted inside the control box (31). The movable end of the pressurizing device is fixedly connected to a pressing plate (32). The lower end of the pressing plate (32) is connected to a pair of clamping blocks (33) through an electric guide rail; An installation hole is formed in the middle of the pressing plate (32). A rotating arm (4) is rotatably connected inside the installation hole. The rotating arm (4) includes a main arm plate (41). A motor matching the main arm plate (41) is mounted inside the control box (31). A telescopic shaft is connected between the power output end of the motor and the main arm plate (41). The lower end of the main arm plate (41) is connected to a pair of movable platforms (42) through an electric slide rail. A pressing block (43) is fixedly connected to the lower end of the movable platform (42); The pressing tooling (5) includes a pressing ring body (51). An elastic rubber layer (52) is laid at the lower end of the pressing ring body (51). A plurality of uniformly distributed through holes are formed at the lower end of the (51). A sealing cover (53) is clamped at the opening of the through hole. An air hole communicating with the through hole is formed at the side end of the pressing ring body (51). A heat melting pipe (54) is inserted into the air hole; An early warning unit (6) is arranged between the pressing tooling (5) and the housing (11). The early warning unit (6) includes a hollow bolt (61). The hollow bolt (61) penetrates through the tooling ring (12) and is threadedly connected to the housing (11). A positioning column (62) is inserted into the middle of the hollow bolt (61). The two ends of the positioning column (62) are respectively connected to the housing (11) and the sealing cover (53). A piston cover (63) matching the through hole is fixedly connected to the top end of the hollow bolt (61). A sealing space is formed between the piston cover (63) and the sealing cover (53). A marking liquid is filled in the sealing space.

2. The magnetic levitation bearing rotor iron core pressing device according to claim 1, wherein: A cross groove is formed at the top end of the sealing cover (53). A wiring plug matching the pressure sensor is mounted in the middle of the cross groove. An auxiliary motor (44) is fixedly connected to the pressing block (43). The power output end of the auxiliary motor (44) is connected to an adjusting head (45) matching the sealing cover (53) through an electric extension rod.

3. The magnetic levitation bearing rotor core pressing device according to claim 2, wherein: A pair of installation grooves are formed on the inner wall of the clamping block (33). A heater and an infusion pipe are respectively mounted in the pair of installation grooves. The output end of the infusion pipe is provided with a nozzle matching the air hole. A connector is mounted at the upper end of the pressing plate (32). The connector communicates with the nozzle through the infusion pipe.

4. A magnetic levitation bearing rotor core pressing device according to claim 3, characterized in that: A pressure sensor is mounted inside the sealing cover (53). The detection end of the pressure sensor is located inside the through hole.

5. A magnetic suspension bearing rotor core pressing device according to claim 4, characterized in that: The marking liquid includes a colored liquid and a colored sealing oil.

6. The pressing device for the rotor core of a magnetic levitation bearing according to claim 5, characterized in that: The heat melting pipe (54) includes an outer pipe and an inner pipe. The outer pipe is made of a heat-resistant material and is clamped to the inner wall of the air hole. The inner pipe is made of a heat-melting material. The melting temperature of the inner pipe is 60 degrees Celsius.

7. A magnetic levitation bearing rotor core pressing device according to claim 6, characterized in that: It further includes an auxiliary pressing system, and the auxiliary pressing system includes a processor, to which a control module, a monitoring module, a data processing module and a data storage module are connected; The control module is used to receive and process data from the monitoring module, and perform automatic control on the pressing and installing mechanism (3) according to preset algorithms and logics; The monitoring module is used to monitor and collect the working state data of the pressing tool in real time; The data processing module is used to process and analyze the data collected by the monitoring module, and judge whether the pressing tool is loose or there are other abnormal conditions according to the preset alarm threshold; The data storage module is used to store the data collected by the monitoring module and the results calculated by the data processing module.

8. A method of using the magnetic levitation bearing rotor core pressing device according to claim 7, characterized in that: The specific usage method includes: A1. Install the pressing tool (5). Clamp the pressing tool (5) with a pair of clamping blocks (33), and use the electric guide rail to adjust the position of the clamping blocks (33) to ensure that the pressing ring body (51) is aligned with the tooling ring (12); start the pressurizing device through the control box (31), drive the pressing plate (32) to press down, and make the elastic rubber layer (52) contact the tooling ring (12) to form a preliminary press; A2. Seal space construction and marking liquid injection; adjust the position of the clamping blocks (33) to make the position of the nozzle match and dock with the position of the air hole; then the nozzle injects the marking liquid into the air hole through the infusion tube to fill the seal space between the filling piston cover (63) and the seal cover (53) until the pressure detection value reaches the set value; Adjust the position of the clamping blocks (33) again to make the heater match the position of the air hole, and heat the hot melt tube (54) through the heater to melt it; The clamping blocks (33) are reset, then drive the rotating rotor core body (1) to rotate a set angle, and then repeat the above work until the marking liquid is filled in all the seal spaces; A3. Pressing and adjustment. Start the motor to drive the rotating arm (4) to rotate a set angle, and then turn on the pressurizing device to make the pressing block (43) apply uniform pressure to the position of the seal space; at this time, detect the change of the pressure detection value. If the pressure detection value changes outside the set value range, operate through the control adjusting head (45) to make the seal cover (53) rotate, so as to adjust the position of the seal cover (53), and then adjust the hydraulic pressure in the seal space to adjust the hydraulic pressure in the seal space to within the set range; A4. Insert a protective gasket covering the seal cover (53) at the opening of the through hole to complete the pressing and installation; when the equipment is in use, remove the protective gasket, and then connect the pressure sensor wire to monitor the seal space during use.

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