Electron gun viewing system

Abstract

The application discloses an electron gun observation system, which comprises a base, a camera assembly and an external light source assembly, the camera assembly and the external light source assembly are arranged above the base, and the camera assembly is arranged on one side of the external light source assembly; the base internally comprises a scanning coil and a focusing coil; the external light source assembly comprises an illuminating light source, the illuminating light source is arranged on a light source mounting plate, one side of the light source mounting plate is provided with a lens barrel, and one end of the lens barrel is provided with a first reflecting mirror; the camera assembly comprises a camera, the camera is sequentially connected with a sleeve and a connecting barrel, the end of the connecting barrel is provided with a second reflecting mirror, and a plane mirror is arranged below the second reflecting mirror. The electron gun observation system with the above structure realizes observation on the quality of an electron beam welding weld, the external light source is durable and stable, the angle adjustment process of the reflecting mirror is simple and good in effect, in addition, the light-transmitting plane mirror blocks metal vapor generated in the welding process, the image is clear, and the observation effect is excellent.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electron beam vacuum welding, in particular to an electron gun observation system. BACKGROUND

[0002] Electron beam welding refers to the use of accelerated and focused electron beams to bombard the welding surface in vacuum or non-vacuum, so as to melt the workpiece to be welded to realize welding. The structure of the electron gun as the core component of the electron beam vacuum welding equipment is extremely important. It is also particularly important to observe the quality of the welding seam through a special optical channel during welding. The existing observation system has a complicated angle adjustment process of the reflector, and the adjustment effect is not good. In addition, the metal vapor generated during the welding process can affect the clarity and accuracy of the observation system. In order to better observe the welding quality, a reliable observation system must be established. Therefore, the present application provides an observation system of an electron gun. SUMMARY

[0003] The purpose of the present application is to provide an observation system of an electron gun, which realizes the observation of the welding quality of the electron beam welding, the external illumination light source is persistent and stable, the angle adjustment process of the reflector is simple and effective, and in addition, the transparent plane mirror blocks the metal vapor generated during the welding process, the imaging is clear, and the observation effect is excellent.

[0004] To achieve the above purpose, the present application provides an observation system of an electron gun, which comprises a base, a camera assembly and an external light source assembly, the camera assembly and the external light source assembly are arranged above the base, the camera assembly is arranged on one side of the external light source assembly;

[0005] The base comprises a flange plate for connection, an upper fixed plate and a lower fixed plate for fixing a scanning coil and an upper mounting disc and a lower mounting disc for fixing a focusing coil are arranged above the flange plate, and the lower mounting disc is arranged above the upper fixed plate;

[0006] The external light source assembly comprises an illumination light source, the illumination light source is arranged on a light source mounting plate, a lens barrel is arranged on one side of the light source mounting plate, and a first reflector is arranged at one end of the lens barrel;

[0007] The camera assembly comprises a camera, the camera is connected with a sleeve through a camera mounting plate, the sleeve is connected with a connecting cylinder through a side plate, an end of the connecting cylinder is provided with a second fixed plate, a second reflector is arranged on the side surface of the second fixed plate, and a plane mirror is arranged below the second reflector in a opposite manner, and the plane mirror is connected with the side plate through a plane mirror fixed plate.

[0008] Preferably, the focusing coil is coaxially arranged above the scanning coil, a main shaft for installation is arranged at the center of the upper mounting disc, the lower mounting disc, the upper fixed plate and the lower fixed plate, and the main shaft is hollow inside.

[0009] Preferably, the tail of the lighting source is provided with a lampshade with a protective function, the surface of the head of the lighting source is provided with a protective glass, a protective glass pressure cover is provided on the outside of the protective glass, a convex lens is provided on the front side of the protective glass, and a light-transmitting glass is provided on the front side of the convex lens, and the light-transmitting glass and the convex lens are fixed to the light source mounting plate by a lock nut.

[0010] Preferably, a lens barrel is provided on the front side of the light-transmitting glass, which is connected to the light source mounting plate via a lens barrel mounting seat, and a first reflector is provided on the front side of the lens barrel, which is connected to the lens barrel mounting seat via a first fixing plate.

[0011] Preferably, an adjustment plate is provided below the first reflector, the upper end of the adjustment plate is connected to the first reflector, and the lower end of the adjustment plate is provided with an adjustment spring capable of adjusting the angle of the first reflector.

[0012] Preferably, a sliding cylinder is provided inside the sleeve, a rack is provided on the side of the sliding cylinder, a first adjusting motor is provided on the side of the sleeve, a gear is provided at the output end of the first adjusting motor, and the gear is engaged with the rack; a first fixed block is provided at one end of the sliding cylinder, the first fixed block is connected to one end of the adjusting rod, and the other end of the adjusting rod passes through the side plate, the connecting cylinder and the spring plate provided on the side of the second fixed plate.

[0013] Preferably, the spring piece is arranged on one side of the second fixed plate through the second fixed block, a top screw is also provided on one side of the second fixed plate, a top ball is provided at the bottom of the top screw, one end of the adjusting rod connected to the spring piece is set as a slope, and the top ball contacts the slope of one end of the adjusting rod.

[0014] Preferably, a plane mirror mounting plate is provided below the plane mirror, the plane mirror mounting plate and the plane mirror fixing plate are slidingly arranged, a second adjusting motor is provided on the side of the plane mirror fixing plate, the second adjusting motor is connected to the coupling, a screw rod is provided at the output end of the coupling, and the screw rod is connected to the plane mirror mounting plate.

[0015] Preferably, a cylinder is provided on one side of the second regulating motor, and an output end of the cylinder is connected to a connecting plate via a connecting rod, and the connecting plate is connected to a plane mirror mounting plate.

[0016] The advantages and positive effects of the electron gun observation system described in the present invention are:

[0017] 1. The plane mirror in the present invention blocks the metal vapor generated during the welding process, resulting in clear imaging, excellent observation effect, and protection of the camera components.

[0018] 2. The base, camera assembly and external light source assembly in the present invention have a compact structure, high stability and high reliability.

[0019] 3. The angles of the first reflector and the second reflector in the present invention are adjustable, and the adjustment process is simple and convenient, the imaging is clear, and the observation effect is good.

[0020] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic structural diagram of an electron gun observation system embodiment of the present invention;

[0022] Figure 2 A schematic diagram of a base of an electron gun observation system embodiment of the present invention;

[0023] Figure 3 A schematic diagram of an external light source assembly of an electron gun observation system embodiment of the present invention;

[0024] Figure 4 A cross-sectional view of an external light source assembly of an electron gun observation system embodiment of the present invention;

[0025] Figure 5 A schematic diagram of a camera assembly of an electron gun observation system embodiment of the present invention;

[0026] Figure 6 A schematic diagram of adjusting the second reflector of an electron gun observation system according to an embodiment of the present invention;

[0027] Figure 7 A schematic diagram of adjusting a plane mirror in an electron gun observation system embodiment of the present invention;

[0028] Figure 8 This is a schematic diagram of an electron gun observation system embodiment of the present invention.

[0029] Reference numerals

[0030] 1. Base; 1-1. Spindle; 1-2. Upper mounting plate; 1-3. Lower mounting plate; 1-4. Upper fixing plate; 1-5. Scanning coil; 1-6. Focusing coil; 1-7. Lower fixing plate; 1-8. Flange plate;

[0031] 2. External light source assembly; 2-1. Light source; 2-2. Lampshade; 2-3. Light source mounting plate; 2-4. Lens barrel mounting base; 2-5. Lens barrel; 2-6. First fixing plate; 2-7. First reflector; 2-8. Adjustment plate; 2-9. Adjustment spring; 2-10. Translucent glass; 2-11. Convex lens; 2-12. Protective glass; 2-13. Protective glass gland;

[0032] 3. Camera assembly; 3-1. Camera; 3-2. Camera mounting plate; 3-3. First adjustment motor; 3-4. Connecting cylinder; 3-5. Second fixing plate; 3-6. Second reflector; 3-7. Plane mirror fixing plate; 3-8. Plane mirror; 3-9. Connecting rod; 3-10. Side plate; 3-11. Cylinder; 3-12. Second adjustment motor; 3-13. Sleeve; 3-14. Rack; 3-15. Sliding cylinder; 3-16. Adjusting rod; 3-17. First fixing block; 3-18. Top screw; 3-19. Top ball; 3-20. Second fixing plate; 3-21. Second fixing block; 3-22. Spring piece; 3-23. Coupling; 3-24. Screw; 3-25. Connecting plate; 3-26. Plane mirror mounting plate;

[0033] 4. Electron gun; 5. Electron beam channel; 6. Vacuum welding chamber; 7. Welding seam; 8. Welding workpiece. DETAILED DESCRIPTION

[0034] The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0035] Unless otherwise defined, the technical or scientific terms used in the present invention shall have the usual meanings understood by persons of ordinary skill in the field to which the present invention belongs. The words "first", "second" and similar terms used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" mean that the elements or objects preceding the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0036] Example

[0037] As shown in the figure, an electron gun observation system includes a base 1, a camera assembly 3, and an external light source assembly 2. The camera assembly 3 and the external light source assembly 2 are arranged above the base 1, and the camera assembly 3 is arranged on one side of the external light source assembly 2. The external light source 2 serves as a fill light source with stable performance and clear imaging.

[0038] like Figure 2As shown, the base 1 includes a flange plate 1-8 for connection. An upper fixing plate 1-4 and a lower fixing plate 1-7 for fixing the scanning coil 1-5 and an upper mounting plate 1-2 and a lower mounting plate 1-3 for fixing the focusing coil 1-6 are arranged above the flange plate 1-8. The lower mounting plate 1-2 is arranged above the upper fixing plate 1-4.

[0039] The focusing coil 1-6 is coaxially arranged above the scanning coil 1-5. The upper mounting plate 1-2, the lower mounting plate 1-3, the upper fixing plate 1-4, and the lower fixing plate 1-7 are coaxially arranged. A main shaft 1-1 for mounting is centrally located between the upper mounting plate 1-2, the lower mounting plate 1-3, the upper fixing plate 1-4, and the lower fixing plate 1-7. The interior of the main shaft 1-1 is hollow. The base 1 is mounted above the vacuum welding chamber 6 via a flange plate 1-8. The focusing coil 1-6 and the scanning coil 1-5 form an electron beam channel 5.

[0040] like Figure 3 and Figure 4 As shown, the external light source assembly 2 includes an illumination light source 2-1, which is arranged on a light source mounting plate 2-3. A lens barrel 2-5 is arranged on one side of the light source mounting plate 2-3, and a first reflector 2-7 is arranged at one end of the lens barrel 2-5.

[0041] The tail of the lighting source 2-1 is covered with a protective lampshade 2-2. The head surface of the lighting source 2-1 is provided with a protective glass 2-12, and a protective glass pressure cover 2-13 is provided on the outside of the protective glass 2-12. The protective glass 2-12 protects the lighting source 2-1 from damage. A convex lens 2-11 is provided on the front side of the protective glass 2-12. The protruding end of the convex lens 2-11 is close to the lighting source 2-1. The convex lens 2-11 can focus the light source and make it more stable. The front side of the convex lens 2-11 is provided with a light-transmitting glass 2-10. The light-transmitting glass 2-10 and the convex lens 2-11 are fixed to the light source mounting plate 2-3 via a locknut.

[0042] A lens barrel 2-5 is provided on the front side of the light-transmitting glass 2-10, and the lens barrel 2-5 is connected to the light source mounting plate 2-3 via a lens barrel mounting seat 2-4. A first reflector 2-7 is provided on the front side of the lens barrel 2-5, and the first reflector 2-7 is connected to the lens barrel mounting seat 2-4 via a first fixing plate 2-6. The lens barrel 2-5, the light-transmitting glass 2-10, the convex lens 2-11, and the protective glass 2-12 are coaxially arranged.

[0043] like Figure 4As shown, an adjustment plate 2-8 is provided below the first reflector 2-7. The upper end of the adjustment plate 2-8 is connected to the first reflector 2-7, and the lower end of the adjustment plate 2-8 is provided with an adjustment spring 2-9 for adjusting the angle of the first reflector 2-7. The angle of the first reflector 2-7 can be adjusted by adjusting the spring 2-9 and the adjustment plate 2-8 so that the light source is better refracted to the weld 7.

[0044] like Figure 5 As shown, the camera assembly 3 includes a camera 3-1, which is connected to a sleeve 3-13 via a camera mounting plate 3-2. The sleeve 3-13 is connected to a connecting tube 3-4 via a side plate 3-10. A second fixing plate 3-5 is provided at the end of the connecting tube 3-4, and a second reflector 3-6 is provided on the side of the second fixing plate 3-5. A plane mirror 3-8 is provided below the second reflector 3-6 and is oppositely arranged. The plane mirror 3-8 is connected to the side plate 3-10 via a plane mirror fixing plate 3-7.

[0045] like Figure 6 As shown, a sliding cylinder 3-15 is provided inside the sleeve 3-13, and a rack 3-14 is provided on the side of the sliding cylinder 3-15. A first adjustment motor 3-3 is provided on the side of the sleeve 3-13, and a gear is provided at the output end of the first adjustment motor 3-3, which meshes with the rack 3-14. A first fixing block 3-17 is provided at one end of the sliding cylinder 3-15, and the first fixing block 3-17 is connected to one end of the adjustment rod 3-16. The other end of the adjustment rod 3-16 passes through the side plate 3-10 and the connecting cylinder 3-4 and is connected to the spring piece 3-22 provided on the side of the second fixing plate 3-5.

[0046] The spring piece 3-22 is arranged on one side of the second fixed plate 3-20 through the second fixed block 3-21. A top screw 3-18 is also provided on one side of the second fixed plate 3-20. A top ball 3-19 is provided at the bottom of the top screw 3-18. The end of the adjusting rod 3-16 connected to the spring piece 3-22 is set as a slope, and the top ball 3-19 contacts the slope of one end of the adjusting rod 3-16.

[0047] The first adjusting motor 3-3 drives the rack 3-14 to slide, thereby driving the sliding cylinder 3-15 to slide, and then driving the adjusting rod 3-16 to slide. When the adjusting rod 3-16 slides, the top bead 3-19 is always in contact with the inclined surface of the adjusting rod 3-16, and the spring piece 3-22 will be deformed, thereby adjusting the angle of the second fixed plate 3-20, that is, the angle of the second reflector 3-6 can be adjusted.

[0048] like Figure 7As shown, a plane mirror mounting plate 3-26 is provided below the plane mirror 3-8, and the plane mirror mounting plate 3-26 is slidably provided with the plane mirror fixing plate 3-7. A second adjustment motor 3-12 is provided on the side of the plane mirror fixing plate 3-7, and the second adjustment motor 3-12 is connected to the coupling 3-23. A screw rod 3-24 is provided at the output end of the coupling 3-23, and the screw rod 3-24 is connected to the plane mirror mounting plate 3-26.

[0049] A cylinder 3-11 is provided on one side of the second regulating motor 3-12, and the output end of the cylinder 3-11 is connected to the connecting plate 3-25 through a connecting rod 3-9, and the connecting plate 3-25 is connected to the plane mirror mounting plate 3-26.

[0050] The second regulating motor 3-12 and the cylinder 3-11 jointly regulate the extension and retraction of the plane mirror 3-8 so that the plane mirror 3-8 can be used normally.

[0051] Figure 8 This is a schematic diagram of an electron gun observation system of the present invention. Figure 8 As shown, the light emitted by the illumination light source 2-1 is reflected by the first reflector 2-7, passes through the plane mirror 3-8, and irradiates the weld 7 of the welding workpiece 8 through the electron beam channel 5. The light at the illuminated weld 7 is reflected through the electron beam channel 5, passes through the plane mirror 3-8, and is reflected by the second reflector 3-6 to enter the lens of the camera 3-1. After the camera 3-1 collects the signal, it transmits the image to the display, and the observer can observe the weld 7.

[0052] Therefore, the present invention adopts an electron gun observation system with the above structure to realize the observation of the quality of electron beam welding welds. The external lighting source is long-lasting and stable, and the angle adjustment process of the reflector is simple and effective. In addition, the transparent plane mirror blocks the metal vapor generated during the welding process, the imaging is clear, and the observation effect is excellent.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the same. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solutions of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. An electron gun observation system, characterized in that: It includes a base, a camera assembly and an external light source assembly. The camera assembly and the external light source assembly are arranged above the base, and the camera assembly is arranged on one side of the external light source assembly. The base includes a flange plate for connection, an upper fixing plate and a lower fixing plate for fixing the scanning coil and an upper mounting plate and a lower mounting plate for fixing the focusing coil are arranged above the flange plate, and a lower mounting plate is arranged above the upper fixing plate; The external light source assembly includes an illumination light source, which is arranged on a light source mounting plate, a lens barrel is arranged on one side of the light source mounting plate, and a first reflector is arranged at one end of the lens barrel; The camera assembly includes a camera, the camera is connected to the sleeve via a camera mounting plate, the sleeve is connected to the connecting tube via a side plate, the end of the connecting tube is provided with a second fixing plate, a second reflector is provided on the side of the second fixing plate, and a plane mirror is provided below the second reflector, and the plane mirror is connected to the side plate via a plane mirror fixing plate; The tail of the lighting source is provided with a protective lampshade, the head surface of the lighting source is provided with a protective glass, the outside of the protective glass is provided with a protective glass pressure cover, the front side of the protective glass is provided with a convex lens, the front side of the convex lens is provided with a light-transmitting glass, and the light-transmitting glass and the convex lens are fixed to the light source mounting plate by a lock nut; A lens barrel is provided on the front side of the light-transmitting glass, and the lens barrel is connected to the light source mounting plate through a lens barrel mounting seat. A first reflector is provided on the front side of the lens barrel, and the first reflector is connected to the lens barrel mounting seat through a first fixing plate; A sliding cylinder is provided inside the sleeve, a rack is provided on the side of the sliding cylinder, a first adjusting motor is provided on the side of the sleeve, a gear is provided at the output end of the first adjusting motor, and the gear is meshed with the rack; a first fixing block is provided at one end of the sliding cylinder, the first fixing block is connected to one end of the adjusting rod, and the other end of the adjusting rod passes through the side plate and the connecting cylinder and is connected to a spring piece provided on the side of the second fixing plate; A plane mirror mounting plate is provided below the plane mirror, and the plane mirror mounting plate and the plane mirror fixing plate are slidingly arranged. A second adjusting motor is provided on the side of the plane mirror fixing plate, and the second adjusting motor is connected to the coupling. A screw is provided at the output end of the coupling, and the screw is connected to the plane mirror mounting plate.

2. The electron gun observation system according to claim 1, characterized in that: The focusing coil is coaxially arranged above the scanning coil. A main shaft for installation is arranged in the center of the upper mounting plate, the lower mounting plate, the upper fixing plate and the lower fixing plate. The interior of the main shaft is arranged to be hollow.

3. The electron gun observation system according to claim 1, wherein: An adjustment plate is provided below the first reflector, the upper end of the adjustment plate is connected to the first reflector, and the lower end of the adjustment plate is provided with an adjustment spring for adjusting the angle of the first reflector.

4. The electron gun observation system according to claim 1, wherein: The spring piece is arranged on one side of the second fixed plate through the second fixed block. A top screw is also arranged on one side of the second fixed plate. A top ball is arranged at the bottom of the top screw. One end of the adjusting rod connected to the spring piece is set as an inclined surface, and the top ball contacts the inclined surface of one end of the adjusting rod.

5. The electron gun observation system according to claim 1, characterized in that: A cylinder is provided on one side of the second regulating motor, and an output end of the cylinder is connected to a connecting plate through a connecting rod, and the connecting plate is connected to the plane mirror mounting plate.

Images