High-precision assembly mold and method for electron beam focusing assembly

Abstract

The application relates to the field of electric vacuum device manufacturing, and discloses a high-precision assembling die for an electron beam focusing assembly, which comprises an upper die, a lower die is arranged at the lower end of the upper die, a pressing die is clamped and connected to the inside of the upper die, a pin is arranged at the outer periphery of the upper die, a bunching electrode assembly is arranged at the middle part of the lower end of the pressing die, a lower bunching electrode is clamped and connected to the left end of the lower die, a gap piece is arranged in the middle part of the upper die and the lower die, and a left-right opposite fixed auxiliary assembly is arranged at the outer periphery of the upper die. The structure cooperation between the upper die, the lower die, the lower bunching electrode, the gap piece, the pin, the pressing die and the bunching electrode assembly makes the operation simple when the high-precision assembling die for the electron beam focusing assembly is configured, the centering precision of the assembled electron beam focusing assembly is less than or equal to 0.01 mm, the gap size consistency is good, the size consistency of the bunching electrode assembly is greatly improved, and the yield of the bunching electrode assembly welding is more than 90%.

Description

Technical Field

[0001] This invention relates to the field of vacuum electronic device manufacturing, specifically to a high-precision assembly mold and method for an electron beam focusing component. Background Technology

[0002] Vacuum electronic devices primarily utilize electrons moving in a vacuum to achieve their various functions. A key aspect is the need to focus the electrons emitted from the electron gun into a dense electron beam using a focusing system. Currently, there are two main types of focusing systems: magnetic focusing and electrostatic focusing. Magnetic focusing systems primarily use magnetic fields to converge the electron beam, but they are bulky, heavy, consume a lot of power, and are complex to debug, making them unsuitable for applications where instrument size and power consumption are critical. Electrostatic focusing, on the other hand, utilizes electric fields to converge the electron beam, offering advantages such as simple structure and zero power consumption.

[0003] The electron beam radius of miniature X-ray tubes is on the order of a few tenths of a millimeter. They typically employ an electro-focusing system, and the electron beam focusing assembly of the X-ray tube is a double-circular structure of equal diameter, featuring a small gap size (0.120 mm). +0.01 The alignment must be precise (concentricity: 0.01mm). After assembly and welding, issues such as center hole misalignment, unacceptable gaps, and poor consistency are highly likely to occur. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a high-precision assembly mold and method for electron beam focusing components, which solves the problems of misalignment of the center hole, unqualified gaps, and poor consistency that easily occur after assembly and welding.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a high-precision assembly mold for an electron beam focusing component, comprising an upper mold, a lower mold mounted on the lower end of the upper mold, a pressure mold engaged with the interior of the upper mold, pins mounted on the outer periphery of the upper mold, a focusing electrode assembly disposed at the lower center of the pressure mold, a lower focusing electrode engaged with the left end of the lower mold, a gap plate disposed at the middle of the upper and lower molds, left and right opposing fixing auxiliary components disposed on the outer periphery of the upper mold, an installation auxiliary component disposed at the lower center of the upper mold, and a surrounding auxiliary component disposed at the lower center of the installation auxiliary component;

[0006] The installation auxiliary component includes a second annular ring, a rotating ring mounted on the upper center of the second annular ring, a first annular ring mounted on the upper center of the rotating ring, a washer mounted on the upper center of the first annular ring, a limit ring mounted on the upper center of the washer, a fixing block 1 disposed on the outer side of the limit ring 1, an annular column mounted on the upper center of the fixing block 1, a connecting rod welded to one side of the annular column, a second fixing block 2 engaged with the upper center of the washer, a second annular ring 2 welded to the outer side of the fixing block 2, and a push rod disposed on the upper center of the second annular ring.

[0007] Preferably, the surrounding auxiliary component includes a rotating rod, with a fixed block three rotatably connected to the outer side of the rotating rod. An annular ring three is installed on the outer side of the fixed block three. A motor one is installed on one side of the annular ring three, and a motor three is installed on the other side of the annular ring three. A base one is installed at the lower middle of the motor three, and a base two is installed at the lower middle of the motor one. A base plate is welded to the lower middle of the base two and the base one. A gear is provided at the upper middle of the rotating rod, and a fixed rod is provided on the outer side of the gear. A fixed block three is welded to the lower end of the fixed rod. The gear meshes with the rotating rod, and a motor two is installed at the front middle of the fixed rod.

[0008] Preferably, a push rod is provided at the upper middle part of the second motor, a focusing pole assembly is provided at the lower middle part of the push rod, a support rod is installed on the outer periphery of the bottom of the focusing pole assembly, and a lower mold is welded to the lower middle part of the support rod.

[0009] Preferably, the fixing auxiliary component includes a screw, with a plug rod slidably connected to the middle of the lower end of the screw, and a housing provided on the left side of the lower end of the plug rod.

[0010] Preferably, a pressure mold is provided at the upper middle part of the lower mold, an upper mold is installed at the upper middle part of the pressure mold, a lower focusing electrode is installed at the upper middle part of the upper mold, and pins are installed on the bottom outer periphery of the lower focusing electrode.

[0011] A method for high-precision assembly mold of electron beam focusing component includes the following steps:

[0012] Step 1: When assembling the electron beam focusing assembly with high precision, personnel can select the material of the focusing electrode;

[0013] Step 2: After selecting the materials required for the focusing electrode, the staff can design the tooling for the electron beam focusing assembly.

[0014] Step 3: After the tooling design of the electron beam focusing assembly is completed, the staff will place the electron beam focusing assembly on the focusing electrode assembly between the upper and lower dies for mold processing, and control the installation of the gap plate in the assembly.

[0015] Step 4: When processing the mold, the operator needs to control the focusing pole component in the electron beam focusing assembly, assemble the focusing assembly, process the mold using the shim method, and control the installation of the gap plate during processing.

[0016] Step 5: When using the shim method to process different molds, workers can install auxiliary components to fix and clamp different shims, reducing the possibility of the shims moving during processing.

[0017] Step Six: When the mold is being processed using the shim method, the operator can activate the surround auxiliary component, which allows the shim and electron beam focusing mold to be wobbled back and forth while being clamped.

[0018] Preferably, step one further includes the following steps:

[0019] S7001, the focusing electrode can be a molybdenum part, and a stainless steel welding mold will be used when using the mold;

[0020] S7002. Using the outer circle of the focusing electrode as a reference, the two focusing electrodes are wrapped inside the welding mold to achieve the centering effect of the two focusing electrodes' central holes.

[0021] S7003. By installing an auxiliary assembly in the middle of the clustering pole assembly during alignment, the alignment efficiency can be improved.

[0022] Preferably, step three further includes the following steps:

[0023] S8001. First, the stainless steel bar is processed to ensure that the dimensions of the upper and lower molds are consistent during assembly. An installation auxiliary component will be used to avoid mismatch between the upper and lower molds during subsequent assembly, which would affect the alignment effect.

[0024] S8002, the dotted line divides it into an upper mold and a lower mold, which are paired and labeled. The upper and lower molds are quickly aligned and positioned by relying on the outer diameter of the lower gathering pole through the shim method.

[0025] S8003. Finally, the surface roughness is ground to 0.8μm to facilitate a tight fit between the two molds and ensure the parallelism of the two focusing electrodes during assembly.

[0026] Preferably, step three, controlling and installing the spacer, further includes the following steps:

[0027] S9001. First, during installation, the staff should control the gap between the two focusing electrodes to be between 0.12mm and 0.13mm. A gap sheet is used directly between the two focusing electrodes for control. The gap sheet is made of stainless steel and powder is coated on one side. This can achieve a size of 0.12mm-0.126mm and also facilitate the removal of the gap sheet after welding.

[0028] S9002. Based on the position of the gap plate in the focusing electrode, the upper mold of the focusing electrode is processed again to leave space for placing the gap plate, ensuring that the gap plate does not affect the assembly of the focusing electrode and facilitates the removal and placement of the gap plate after welding.

[0029] Preferably, the assembly of the focusing pole assembly in step four further includes the following steps:

[0030] S1001. Stack the focusing electrode and the spacer plate on the lower mold in sequence;

[0031] S1002. Assemble the upper mold so that the two gathering electrodes are wrapped inside the welding mold. The gap between the upper and lower molds and the gathering electrodes is 0.01mm-0.015mm, which helps to ensure the alignment of the center hole of the gathering electrode assembly.

[0032] S1003. Use pins to fix the upper mold and the lower mold, and at the same time assist in the assembly of the upper mold and the lower mold, in order to avoid shaking and deformation of the cluster electrode assembly during transportation and welding.

[0033] S1004. Place the mold to ensure the parallelism of the clustering electrode assembly, and finally form the assembly structure.

[0034] This invention provides a high-precision assembly mold and method for electron beam focusing components. It offers the following advantages:

[0035] 1. This invention simplifies the operation of high-precision assembly mold configuration for electron beam focusing components by coordinating the upper mold, lower mold, lower focusing electrode, gap plate, pin, pressure mold, and focusing electrode assembly. The assembled electron beam focusing component has an alignment accuracy of ≤0.01mm and good gap size consistency, greatly improving the dimensional consistency of the focusing electrode assembly. This results in a welding yield of over 90% for the focusing electrode assembly. Furthermore, using the outer diameter of the focusing component as a reference, the focusing component is assembled into a cylindrical mold with a diameter equivalent to that of the focusing component, preventing misalignment of the two focusing electrodes during welding. The gap is directly controlled using a shim method, achieving precise control of the focusing component gap and facilitating easy removal after welding.

[0036] 2. By cooperating with the auxiliary components and the internal structure of the surrounding auxiliary components, this invention enables workers to effectively clamp high-precision assembly molds of electron beam focusing components of different specifications when using the shim method. At the same time, during use, the sliding of the surrounding auxiliary components allows workers to adjust the mold in different directions, so that the focusing electrode component can be better shaken during mold manufacturing. Attached Figure Description

[0037] Figure 1 This is a perspective view of the present invention;

[0038] Figure 2 This is a structural diagram of the focusing component of the present invention;

[0039] Figure 3 This is a schematic diagram of the assembly of the beam welding mold of the present invention;

[0040] Figure 4 This is a schematic diagram of the main structure of the beam welding mold of the present invention;

[0041] Figure 5 This is a side view of the beam welding mold of the present invention;

[0042] Figure 6 This is a schematic diagram of the formal structure of the focusing electrode assembly of the present invention;

[0043] Figure 7 for Figure 6 Enlarged view of point A in the middle;

[0044] Figure 8 This is a schematic diagram of the main structure of the focusing electrode assembly of the present invention;

[0045] Figure 9 This is a side view of the upper die structure for the beam welding of the present invention;

[0046] Figure 10 This is a top view of the top structure of the beam welding upper mold of the present invention;

[0047] Figure 11 This is a schematic diagram of the three-dimensional side view of the upper mold structure of the present invention;

[0048] Figure 12 This is a top view of the lower beam-gathering pole structure of the present invention;

[0049] Figure 13 This is a side view of the installation auxiliary component of the present invention;

[0050] Figure 14 This is a top view of the installation auxiliary component of the present invention;

[0051] Figure 15 This is a bottom view of the base plate structure of the present invention;

[0052] Figure 16 This is a side view schematic diagram of the annular column structure of the present invention.

[0053] The components include: 1. Upper mold; 2. Lower mold; 3. Lower cohesive pole; 4. Spacer; 5. Pin; 6. Press mold; 7. Cohesive pole assembly; 8. Installation auxiliary assembly; 801. Push rod; 802. Limiting ring one; 803. Washer; 804. Annular column; 805. Annular ring one; 806. Fixing block one; 807. Fixing block two; 808. Annular ring two; 809. Rotating ring; 810. Connecting rod; 9. Surrounding auxiliary assembly; 901. Rotating rod; 902. Fixing block three; 903. Annular ring three; 904. Base one; 905. Base plate; 906. Base two; 907. Motor one; 908. Motor two; 909. Gear; 910. Fixing rod; 911. Motor three; 10. Fixing auxiliary assembly; 1001. Screw; 1002. Housing; 1003. Insert rod; 11. Support rod. Detailed Implementation

[0054] The technical solutions in 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.

[0055] Example:

[0056] Please see the appendix Figure 1 - Appendix Figure 16 A high-precision assembly mold for an electron beam focusing component includes an upper mold 1, a lower mold 2 installed at the lower end of the upper mold 1, and a pressure mold 6 connected to the inside of the upper mold 1 by using the upper mold 1 and the lower mold 2. A pin 5 is installed on the outer periphery of the upper mold 1, a focusing electrode component 7 is provided at the lower middle of the pressure mold 6, a lower focusing electrode 3 is connected to the left end of the lower mold 2, a gap 4 is provided in the middle of the upper mold 1 and the lower mold 2, a left-right opposing fixing auxiliary component 10 is provided on the outer periphery of the upper mold 1, and an installation auxiliary component 8 is provided at the lower middle of the upper mold 1 to facilitate the installation of the electron beam focusing component by the operator. A surrounding auxiliary component 9 is installed at the lower middle of the installation auxiliary component 8 to allow for surrounding rotation when using the shim method.

[0057] See attached document Figure 13-16The installation auxiliary component 8 includes a second annular ring 808, a rotating ring 809 installed at the upper center of the second annular ring 808, a first annular ring 805 installed at the upper center of the rotating ring 809, a washer 803 installed at the upper center of the first annular ring 805, a first limiting ring 802 installed at the upper center of the washer 803, a first fixing block 806 provided on the outer side of the first limiting ring 802, an annular column 804 installed at the upper center of the first fixing block 806, a connecting rod 810 welded to one side of the annular column 804, a second fixing block 807 engaged at the upper center of the washer 803, a second annular ring 808 welded to the outer side of the second fixing block 807, and a push rod 801 provided at the upper center of the second annular ring 808.

[0058] See attached document Figure 13-15 The surrounding auxiliary component 9 includes a rotating rod 901. A fixed block 902, facing each other, is rotatably connected to the outer side of the rotating rod 901. An annular ring 903 is mounted on the outer side of the fixed block 902. A motor 907 is mounted on one side of the annular ring 903, and a motor 911 is mounted on the other side. A base 904 is mounted at the lower center of the motor 911, and a base is mounted at the lower center of the motor 907. A base plate 905 is welded to the lower middle of the base 906 and the base 904. A gear 909 is provided at the upper middle of the rotating rod 901. A fixing rod 910 is provided on the outside of the gear 909. A fixing block 902 is welded to the lower end of the fixing rod 910. The gear 909 is meshed with the rotating rod 901. A motor 908 is installed at the front middle of the fixing rod 910. The motor 908 can provide driving force for the use of the fixing rod 910.

[0059] See attached document Figure 14 A push rod 801 is provided at the upper middle part of the motor 2 908, and a focusing pole assembly 7 is provided at the lower middle part of the push rod 801. Support rods 11 are installed on the outer periphery of the bottom of the focusing pole assembly 7, and a lower mold 2 is welded to the lower middle part of the support rod 11.

[0060] See attached document Figure 12 The fixing auxiliary component 10 includes a screw 1001, a plug rod 1003 is slidably connected to the middle of the lower end of the screw 1001, and a housing 1002 is provided on the left side of the lower end of the plug rod 1003.

[0061] A pressure mold 6 is provided at the upper middle part of the lower mold 2, an upper mold 1 is installed at the upper middle part of the pressure mold 6, a lower cohesive electrode 3 is installed at the upper middle part of the upper mold 1, and pins 5 are installed on the bottom outer periphery of the lower cohesive electrode 3.

[0062] A method for high-precision assembly mold of electron beam focusing component includes the following steps:

[0063] Step 1: When assembling the electron beam focusing assembly with high precision, personnel can select the material of the focusing electrode;

[0064] Step 2: After selecting the materials required for the focusing electrode, the staff can design the tooling for the electron beam focusing assembly.

[0065] Step 3: After the tooling design of the electron beam focusing assembly is completed, the staff will place the electron beam focusing assembly on the focusing electrode assembly 7 between the upper mold 1 and the lower mold 2 for mold processing, and the gap plate in the assembly needs to be controlled and installed.

[0066] Step 4: When processing the mold, the operator needs to control the focusing pole component 7 in the electron beam focusing assembly, assemble the focusing assembly, process the mold using the shim method, and control the installation of the gap plate during processing.

[0067] Step 5: When using the shim method to process different molds, the operator can fix and clamp the different shims by installing auxiliary component 8, reducing the possibility of the shims moving during processing.

[0068] Step Six: When the mold is being processed using the shim method, the operator can activate the surround auxiliary component 9, which allows the shim and electron beam focusing mold to be wobbled back and forth while being clamped.

[0069] Step one also includes the following steps:

[0070] S7001, the focusing electrode can be a molybdenum part, and a stainless steel welding mold will be used when using the mold;

[0071] S7002. Using the outer circle of the focusing electrode as a reference, the two focusing electrodes are wrapped inside the welding mold to achieve the centering effect of the two focusing electrodes' central holes.

[0072] S7003. By using the installation auxiliary component 8 installed in the middle of the focusing pole assembly 7 during alignment, the alignment efficiency can be improved.

[0073] Step three also includes the following steps:

[0074] S8001. First, the stainless steel bar is processed to ensure that the dimensions of the upper and lower molds are consistent during assembly. Installation auxiliary component 8 will be used to avoid mismatch between the upper and lower molds during subsequent assembly, which would affect the alignment effect.

[0075] S8002, the dotted line divides it into an upper mold and a lower mold, which are paired and labeled. The upper and lower molds are quickly aligned and positioned by relying on the outer diameter of the lower gathering pole through the shim method.

[0076] S8003. Finally, the surface roughness is ground to 0.8μm to facilitate a tight fit between the two molds and ensure the parallelism of the two focusing electrodes during assembly.

[0077] Step three, controlling and installing the spacer, also includes the following steps:

[0078] S9001. First, during installation, the staff should control the gap between the two focusing electrodes to be between 0.12mm and 0.13mm. A gap sheet is used directly between the two focusing electrodes for control. The gap sheet is made of stainless steel and powder is coated on one side. This can achieve a size of 0.126mm and also facilitate the removal of the gap sheet after welding.

[0079] S9002. Based on the position of the gap plate in the focusing electrode, the upper mold of the focusing electrode is processed again to leave space for placing the gap plate, ensuring that the gap plate does not affect the assembly of the focusing electrode and facilitates the removal and placement of the gap plate after welding.

[0080] Step four of the focusing pole assembly also includes the following steps:

[0081] S1001. Stack the focusing electrode and the spacer plate on the lower mold in sequence;

[0082] S1002. Assemble the upper mold so that the two gathering electrodes are wrapped inside the welding mold. The gap between the upper and lower molds and the gathering electrodes is 0.015mm, which helps to ensure the alignment of the center hole of the gathering electrode assembly.

[0083] S1003. Use pins 5 to fix the upper mold 1 and the lower mold 2. At the same time, while assisting in the assembly of the upper mold 1 and the lower mold 2, it is also necessary to prevent the clustering electrode assembly from shaking and deforming during transportation and welding.

[0084] S1004. Place the mold to ensure the parallelism of the clustering electrode assembly, and finally form the assembly structure.

[0085] 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 high-precision assembly mold for an electron beam focusing component, comprising an upper mold (1), characterized in that, The lower end of the upper mold (1) is equipped with a lower mold (2). The upper mold (1) is internally connected to a pressure mold (6). The upper mold (1) is externally equipped with a pin (5). The lower end of the pressure mold (6) is provided with a focusing electrode assembly (7). The left end of the lower mold (2) is connected to a lower focusing electrode (3). The upper mold (1) and the lower mold (2) are provided with a gap piece (4) in the middle. The upper mold (1) is externally equipped with left and right opposite fixing auxiliary components (10). The lower end of the upper mold (1) is provided with an installation auxiliary component (8). The lower end of the installation auxiliary component (8) is equipped with a surrounding auxiliary component (9). The installation auxiliary component (8) includes a second annular ring (808), a rotating ring (809) is installed at the middle of the upper end of the second annular ring (808), a first annular ring (805) is installed at the middle of the upper end of the rotating ring (809), a washer (803) is installed at the middle of the upper end of the first annular ring (805), a first limiting ring (802) is installed at the middle of the upper end of the washer (803), a first fixing block (806) is provided on the outer side of the first limiting ring (802), an annular column (804) is installed at the middle of the upper end of the first fixing block (806), a connecting rod (810) is welded to one side of the annular column (804), a second fixing block (807) is engaged with the middle of the upper end of the washer (803), a second annular ring (808) is welded to the outer side of the second fixing block (807), and a push rod (801) is provided at the middle of the upper end of the second annular ring (808). The surrounding auxiliary component (9) includes a rotating rod (901), with a fixed block three (902) rotatably connected to the outer side of the rotating rod (901) and the fixed block three (902) having an annular ring three (903) mounted on the outer side of the fixed block three (902). A motor one (907) is mounted on one side of the annular ring three (903), and a motor three (911) is mounted on the other side of the annular ring three (903). A base one (904) is mounted at the lower center of the motor three (911), and the lower end of the motor one (907) is... A base two (906) is installed in the middle. A base plate (905) is welded to the lower middle of the base two (906) and the base one (904). A gear (909) is provided in the upper middle of the rotating rod (901). A fixing rod (910) is provided on the outside of the gear (909). A fixing block three (902) is welded to the lower end of the fixing rod (910). The gear (909) meshes with the rotating rod (901). A motor two (908) is installed in the middle of the front side of the fixing rod (910). The fixing auxiliary component (10) includes a screw (1001), and a plug rod (1003) is slidably connected to the middle of the lower end of the screw (1001). A housing (1002) is provided on the left side of the lower end of the plug rod (1003).

2. The high-precision assembly mold for an electron beam focusing component according to claim 1, characterized in that, The upper middle part of the second motor (908) is provided with a push rod (801), the lower middle part of the push rod (801) is provided with a focusing pole assembly (7), the bottom outer periphery of the focusing pole assembly (7) is provided with a support rod (11), and the lower middle part of the support rod (11) is welded with a lower mold (2).

3. The high-precision assembly mold for an electron beam focusing component according to claim 1, characterized in that, A pressure mold (6) is provided at the upper middle part of the lower mold (2), an upper mold (1) is installed at the upper middle part of the pressure mold (6), a lower cohesive pole (3) is installed at the upper middle part of the upper mold (1), and pins (5) are installed on the bottom outer periphery of the lower cohesive pole (3).

4. A method for a high-precision assembly mold for an electron beam focusing component, comprising the high-precision assembly mold for an electron beam focusing component according to claim 1, characterized in that, Includes the following steps: Step 1: When assembling the electron beam focusing assembly with high precision, personnel select the material for the focusing electrode; Step 2: After selecting the materials required for the focusing electrode, the staff will design the tooling for the electron beam focusing assembly. Step 3: After the tooling design of the electron beam focusing assembly is completed, the staff will place the electron beam focusing assembly on the focusing pole assembly (7) between the upper mold (1) and the lower mold (2) for mold processing, and the gap plate in the assembly needs to be controlled and installed. Step 4: When processing the mold, the staff needs to control the focusing pole assembly (7) in the electron beam focusing assembly, assemble the focusing assembly, process the mold by the shim method, and control the installation of the gap plate during processing. Step 5: When using the shim method to process different molds, the workers can fix and clamp the different shims by installing auxiliary components (8), reducing the possibility of the shims moving during processing. Step 6: When the mold is being processed using the shim method, the staff will activate the surrounding auxiliary component (9), which will be able to swing back and forth while clamping the shim and the electron beam focusing mold.

5. The method for high-precision assembly mold of electron beam focusing component according to claim 4, characterized in that, Step one also includes the following steps: S7001, the focusing electrode is selected as a molybdenum part, and a stainless steel welding mold will be used when using the mold; S7002. Using the outer circle of the focusing electrode as a reference, the two focusing electrodes are wrapped inside the welding mold to achieve the centering effect of the two focusing electrodes' central holes. S7003. By using the installation auxiliary component (8) installed in the middle of the cluster pole assembly (7) during alignment, the alignment efficiency can be improved.

6. The method for high-precision assembly mold of electron beam focusing component according to claim 5, characterized in that, Step three also includes the following steps: S8001. First, the stainless steel bar is processed to ensure that the dimensions of the upper and lower molds are consistent during assembly. An installation auxiliary component (8) will be used to avoid mismatch between the upper and lower molds during subsequent assembly, which would affect the alignment effect. S8002, the dotted line divides it into an upper mold and a lower mold, which are paired and labeled. The upper and lower molds are quickly aligned and positioned by relying on the outer diameter of the lower gathering pole through the shim method. S8003. Finally, the surface roughness is ground to 0.8μm to facilitate a tight fit between the two molds and ensure the parallelism of the two focusing electrodes during assembly.

7. The method for high-precision assembly mold of electron beam focusing component according to claim 5, characterized in that, Step three, which involves controlling and installing the spacer, also includes the following steps: S9001. First, during installation, the staff should control the gap between the two focusing electrodes to be between 0.12mm and 0.13mm. A gap sheet is used directly between the two focusing electrodes for control. The gap sheet is made of stainless steel and powder is coated on one side to obtain a size of 0.12mm-0.126mm. On the other hand, it is also convenient to remove the gap sheet after welding. S9002. Based on the position of the gap plate in the focusing electrode, the upper mold of the focusing electrode is processed again to leave space for placing the gap plate, ensuring that the gap plate does not affect the assembly of the focusing electrode and facilitates the removal and placement of the gap plate after welding.

8. The method for high-precision assembly mold of electron beam focusing component according to claim 4, characterized in that, The assembly of the focusing electrode assembly in step four also includes the following steps: S1001. Stack the focusing electrode and the spacer plate on the lower mold in sequence; S1002. Assemble the upper mold so that the two gathering electrodes are wrapped inside the welding mold. The gap between the upper and lower molds and the gathering electrodes is 0.01mm-0.015mm, which helps to ensure the alignment of the center hole of the gathering electrode assembly. S1003. Use pins (5) to fix the upper mold (1) and the lower mold (2). At the same time, assist the assembly of the upper mold (1) and the lower mold (2) to avoid shaking and deformation of the clustering electrode assembly during transportation and welding. S1004. Place the mold to ensure the parallelism of the clustering electrode assembly, and finally form the assembly structure.

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