X-ray tube manufacturing process device

Abstract

The utility model provides an X-ray tube manufacturing process device. An elastic sleeve of a fixing sleeve surrounds a positioning notch in the outer wall of a positioning core rod to form a positioning groove; the second conical surface of the inner surface of the locking sleeve can sleeve the first conical surface of the outer surface of the elastic sleeve to deform the first conical surface, and at the moment, the first outer clamping structure of the outer surface of the fixing sleeve is clamped with the first inner clamping structure of the inner surface of the locking sleeve; one end of the joint is fixed with the positioning core rod, and the other end is detachably connected with the air tap; the gas-guide tube penetrates through the gas nozzle, the positioning core rod and the joint; and the exhaust pipe of the glass core column can be sleeved between the gas guide pipe and the positioning core rod. The positioning groove is formed by the positioning notch and the elastic sleeve, the metal core needle of the glass core column is positioned by matching with the locking sleeve, and the exhaust pipe of the glass core column is positioned between the gas guide pipe and the positioning core rod, so that the glass core column is not influenced by the problems of high temperature, exhaust pipe softening and the like during sealing and firing, and can be aligned with an electrode at high precision; the manufacturing yield is improved; meanwhile, the device is simple to operate and can improve production efficiency.

Description

Technical Field

[0001] The utility model belongs to the field of X-ray tube manufacturing, in particular to an X-ray tube manufacturing process device. Background Art

[0002] X-ray tubes are primarily used in medical imaging, industrial inspection, safety inspection, and other fields as X-ray sources in equipment. Currently, X-ray tubes primarily come in two structures: glass-metal and ceramic-metal. Glass sealing technology is a key technology in the manufacturing of glass-metal X-ray tubes, primarily to achieve precise connections between the electrodes and the glass shell. Glass-metal X-ray tubes primarily consist of an anode, cathode, and glass shell. The cathode contains a glass core column, which connects and supports the other components of the cathode and must be docked with the glass shell and fired together. Firing requires extremely high control over the position and dimensional accuracy of the glass core column, particularly the distance and concentricity between the glass core column and the electrode. These dimensions require the error to be controlled within 0.1 mm during glass sealing, so the glass core column must be securely fixed to the glass lathe during the firing process.

[0003] However, due to the unique structure of the glass core, the industry has yet to find an ideal fixing position. Traditional X-ray tube manufacturers secure the glass core by clamping the exhaust tube at its center. However, during the glass firing process, due to the high temperatures required to melt the glass, the exhaust tube easily softens and deforms. Furthermore, the exhaust tube itself suffers from defects such as uneven wall thickness and poor concentricity. These factors prevent the dimensional accuracy of the seal between the glass core and the glass shell from being precisely controlled during firing, affecting technical specifications such as the focal spot position, size, and overlap of the X-ray tube, resulting in low production yield and poor delivery quality.

[0004] Therefore, there is an urgent need for a structure or method that can improve the accuracy of positioning the glass core column during the sealing and firing of the glass core column of the X-ray tube.

[0005] It should be noted that the above introduction to the technical background is only for the convenience of providing a clear and complete description of the technical solutions of this application and facilitating the understanding of those skilled in the art. It cannot be assumed that the above technical solutions are well known to those skilled in the art simply because these solutions are described in the background technology part of this application. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide an X-ray tube manufacturing process device to solve the problem in the prior art that the glass core column of the X-ray tube is difficult to accurately position during sealing and firing.

[0007] To achieve the above-mentioned and other related purposes, the present invention provides the following technical solutions:

[0008] In a first aspect, the present invention provides an X-ray tube manufacturing process device, the X-ray tube manufacturing process device comprising: a positioning core rod, a fixing sleeve, a locking sleeve, a joint, an air nozzle and an air guide tube;

[0009] The positioning core rod includes a positioning notch and a first through hole, the first through hole passing through both ends of the positioning core rod, and the positioning notch is located on the outer wall of one end of the positioning core rod; the fixing sleeve includes an elastic sleeve, the inner wall of the elastic sleeve surrounds the positioning notch and forms a positioning groove with the positioning notch, and the positioning groove is used to position and fasten the glass core column of the X-ray tube; the fixing sleeve is sleeved on the outer wall of the positioning core rod, and the position of the positioning core rod where the positioning notch is not provided is fixedly connected to the fixing sleeve;

[0010] The outer surface of the elastic sleeve is a first conical surface, and the inner surface of the locking sleeve includes a second conical surface; the second conical surface can be arranged outside the first conical surface to cause the first conical surface to be squeezed and deformed. The deformation of the first conical surface reduces the diameter of the side wall of the positioning groove, so that the metal core pin of the glass stem can be clamped and fastened in the positioning groove;

[0011] The outer surface of the fixing sleeve, excluding the elastic sleeve, includes a first external engaging structure, and the inner surface of the locking sleeve also includes a first internal engaging structure; when the locking sleeve is arranged outside the fixing sleeve so that the second conical surface presses the first conical surface, the first external engaging structure engages with the first internal engaging structure, so that the fixing sleeve and the locking sleeve are fixedly engaged;

[0012] The joint is fixedly connected to the end of the positioning core rod where the positioning notch is not provided, and a fixing structure is provided at the end of the joint that is not connected to the positioning core rod, and the gas nozzle and the joint are detachably fixedly connected via the fixing structure; the gas nozzle includes a third through hole, and the air guide tube passes through the third through hole of the gas nozzle and is fixedly connected to the gas nozzle; the joint includes a second through hole, and when the gas nozzle is fixedly connected to the joint, the air guide tube also passes through the first through hole of the positioning core rod and the second through hole of the joint; there is a sleeve space between the outer wall of the positioning core rod and the inner wall of the positioning core rod where the air guide tube passes, so that when the metal core needle of the glass core column is clamped and fastened in the positioning groove, the exhaust pipe of the glass core column can be sleeved in the sleeve space.

[0013] Optionally, the positioning core rod includes n positioning notches, the glass core column for positioning and fastening includes n metal core needles, the positions of the positioning notches and the metal core needles correspond to each other, and n is an integer greater than or equal to 2.

[0014] Optionally, the elastic sleeve comprises two or more than two annularly arranged elastic claw surfaces and a fixed ring surface, a deformation interval exists between two adjacent elastic claw surfaces as a deformation space of the elastic sleeve, the fixed ring surface is fixedly connected with each elastic claw surface, and the deformation space of the position where two adjacent elastic claw surfaces are fixedly connected with the fixed ring surface is an arc-shaped opening.

[0015] Optionally, an outer wall of one end of the positioning core rod away from the positioning groove is provided with a second outer engagement structure, and an inner wall of one end of the fixing sleeve away from the elastic sleeve is provided with a second inner engagement structure; the second outer engagement structure and the second inner engagement structure are engaged and fixed to fixedly connect the positioning core rod and the fixing sleeve.

[0016] Optionally, the second outer engagement structure is a first outer platform, and the second inner engagement structure is a first inner platform; when the fixing sleeve is sleeved on the outer wall of the positioning core rod, the first outer platform is attached to the first inner platform, and a joint gap between the first outer platform and the first inner platform is fixed by laser welding circumferential dotting.

[0017] Optionally, the first outer engagement structure is an outer thread, and the first inner engagement structure is an inner thread; when the locking sleeve is sleeved on the outer wall of the fixing sleeve and is rotated and pushed in the direction of the elastic sleeve, the outer thread and the inner thread can be threadedly fastened.

[0018] Optionally, a fixed engagement structure is arranged at the position where the joint is fixedly connected with the positioning core rod, and the joint and the positioning core rod are fixedly connected through the fixed engagement structure.

[0019] Optionally, the fixed engagement structure is a second outer platform at one end of the joint close to the positioning core rod and a second inner platform at one end of the positioning core rod close to the joint; when the joint is fixedly connected with the positioning core rod, the second outer platform is attached to the second inner platform, and a joint gap between the second outer platform and the second inner platform is fixed by laser welding circumferential dotting.

[0020] Optionally, the air nozzle comprises an insertion portion and a clamping portion; an outer diameter of the insertion portion is less than or equal to an inner diameter of one end of the joint close to the fixing structure, so that the insertion portion can be inserted into one end of the joint close to the fixing structure; and an outer diameter of the clamping portion is greater than the inner diameter of one end of the joint close to the fixing structure, so that the clamping portion clamps the air nozzle at one end of the joint close to the fixing structure.

[0021] Optionally, the second through hole of the joint is a variable diameter through hole, and the variable diameter through hole includes a first aperture and a second aperture; the inner diameter of the first aperture close to the fixing structure is greater than or equal to the outer diameter of the insertion portion of the gas nozzle, and the inner diameter of the second aperture close to the positioning core rod is greater than or equal to the outer diameter of the exhaust pipe;

[0022] And / or, the fixing structure is a threaded hole and a screw on the side wall of the joint. When the insertion part is inserted into the joint, the screw can be tightened into the threaded hole to fasten the insertion part of the gas nozzle to the joint.

[0023] As described above, the X-ray tube manufacturing process device of the present invention has the following beneficial effects:

[0024] The utility model provides a positioning groove formed by a positioning notch and an elastic sleeve, cooperates with a locking sleeve to position the metal core pin of the glass core column, and positions the exhaust pipe between the air guide tube and the positioning core rod, so that the glass core column is not affected by high temperature, softening of the exhaust pipe and other problems during sealing and firing, so that the glass core column can maintain high-precision position alignment with the electrode during sealing and firing, reducing dimensional errors after sealing, ensuring the qualified rate of technical indicators of the X-ray tube, and improving the manufacturing yield of the X-ray tube;

[0025] The utility model is simple and convenient to install and operate, can save operation time and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Shown is a structural schematic diagram of the X-ray tube manufacturing process device in the present invention.

[0027] Figure 2 Shown is a structural schematic diagram of a positioning core rod in an X-ray tube manufacturing process device of the present invention.

[0028] Figure 3 Shown is a structural schematic diagram of a fixing sleeve in the X-ray tube manufacturing process device of the present invention.

[0029] Figure 4 Shown is a schematic structural diagram of a locking sleeve in an X-ray tube manufacturing process device of the present invention.

[0030] Figure 5 Shown is a schematic structural diagram of a joint in an X-ray tube manufacturing process device of the present invention.

[0031] Figure 6 Shown is a schematic structural diagram of the gas nozzle in the X-ray tube manufacturing process device of the present invention.

[0032] Figure 7 Shown is a schematic structural diagram of the air guide tube in the X-ray tube manufacturing process device of the present invention.

[0033] Figure 8 The structure diagram of the glass stem shown in the prior art.

[0034] Figure 9 The structure diagram of the component one obtained in the assembling method of the X-ray tube manufacturing process device in the utility model.

[0035] Figure 10 The structure diagram of the component two obtained in the assembling method of the X-ray tube manufacturing process device in the utility model.

[0036] Figure 11 The structure diagram of the component three obtained in the assembling method of the X-ray tube manufacturing process device in the utility model.

[0037] Figure 12 The structure diagram of the component four obtained in the assembling method of the X-ray tube manufacturing process device in the utility model.

[0038] Figure 13 The structure diagram of the X-ray tube manufacturing process device obtained in the assembling method of the X-ray tube manufacturing process device in the utility model.

[0039] Figure 14 The structure diagram of the X-ray tube manufacturing process device obtained in the assembling method of the X-ray tube manufacturing process device in the utility model.

[0040] Element number explanation

[0041] 10, positioning stem; 11, positioning notch; 12, first through hole; 13, second outer clamping structure / first outer mesa; 14, second inner mesa; 15, positioning groove; 16, laser welding circumferential dotting;

[0042] 20, fixing sleeve; 21, elastic sleeve; 22, first conical surface; 23, elastic claw surface; 24, fixed ring surface; 25, deformation space; 26, arc-shaped opening; 27, first outer clamping structure / outer thread; 28, second inner clamping structure / first inner mesa;

[0043] 30, locking sleeve; 31, second conical surface; 32, first inner clamping structure / inner thread;

[0044] 40, joint; 41, fixed structure; 42, threaded hole; 43, screw; 44, second through hole; 45, first aperture; 46, second aperture; 47, second outer mesa;

[0045] 50, air nozzle; 51, third through hole; 52, insertion part; 53, clamping part; 54, pagoda-shaped joint; 55, soldering;

[0046] 60. Airway tube; 61. Space for installation;

[0047] 70. Glass stem; 71. Metal core needle; 72. Exhaust pipe;

[0048] 81. Component 1; 82. Component 2; 83. Component 3; 84. Component 4; 85. X-ray tube manufacturing process device. DETAILED DESCRIPTION

[0049] The following describes the embodiments of the present invention through specific examples. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different perspectives and applications without departing from the spirit of the present invention.

[0050] For example, when describing the embodiments of the present invention, schematic diagrams illustrating device structures may be partially enlarged for ease of explanation. These schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0051] For convenience of description, spatially relative terms such as "under," "below," "below," "below," "above," and "upper" may be used herein to describe the relationship of one element or feature to other elements or features shown in the drawings. It will be understood that these spatially relative terms are intended to encompass other orientations of the device in use or operation in addition to the orientation depicted in the drawings.

[0052] In the context of the present application, a structure described as a first feature being "above" a second feature may include embodiments where the first and second features are formed in direct contact, and may also include embodiments where an additional feature is formed between the first and second features, such that the first and second features may not be in direct contact.

[0053] It should be noted that the illustrations provided in this embodiment are only used to schematically illustrate the basic concept of the present invention. Therefore, the illustrations only show components related to the present invention and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.

[0054] The utility model provides an X-ray tube manufacturing process device, such as Figures 1-7 As shown, the X-ray tube manufacturing process device includes: a positioning core rod 10, a fixing sleeve 20, a locking sleeve, a joint 40, an air nozzle 50 and an air guide tube 60;

[0055] The positioning core rod 10 comprises a positioning notch 11 and a first through hole 12, the first through hole 12 penetrates through both ends of the positioning core rod 10, and the positioning notch 11 is located on the outer wall of one end of the positioning core rod 10; the fixing sleeve 20 comprises an elastic sleeve 21, the inner wall of the elastic sleeve 21 surrounds the positioning notch 11 and forms a positioning groove 15 with the positioning notch 11, the positioning groove 15 is used for positioning and fastening the glass stem 70 of the X-ray tube; the fixing sleeve 20 is sleeved on the outer wall of the positioning core rod 10, and the position of the positioning core rod 10 where the positioning notch 11 is not arranged is fixedly connected with the fixing sleeve 20;

[0056] The outer surface of the elastic sleeve 21 is a first tapered surface 22, and the inner surface of the locking sleeve comprises a second tapered surface 31; the second tapered surface 31 can be sleeved outside the first tapered surface 22 so that the first tapered surface 22 is extruded and deformed, and the deformation of the first tapered surface 22 reduces the length of the side wall of the positioning groove 15, so that the metal core needle 71 of the glass stem 70 can be clamped and fastened in the positioning groove 15;

[0057] The outer surface of the fixing sleeve 20 comprises a first outer clamping structure 27 at the position where the elastic sleeve 21 is not arranged, and the inner surface of the locking sleeve further comprises a first inner clamping structure 32; when the second tapered surface 31 extrudes the first tapered surface 22 after the locking sleeve is sleeved outside the fixing sleeve 20, the first outer clamping structure 27 and the first inner clamping structure 32 are clamped, so that the fixing sleeve 20 and the locking sleeve are fixedly clamped;

[0058] The joint 40 is fixedly connected with one end of the positioning core rod 10 where the positioning notch 11 is not arranged, the fixing structure 41 is arranged at one end of the joint 40 which is not connected with the positioning core rod 10, and the air nozzle 50 and the joint 40 are detachably fixedly connected through the fixing structure 41; the air nozzle 50 comprises a third through hole 51, the air guide pipe 60 penetrates through the third through hole 51 of the air nozzle 50 and is fixedly connected with the air nozzle 50; the joint 40 comprises a second through hole 44, when the air nozzle 50 is fixedly connected with the joint 40, the air guide pipe 60 further penetrates through the first through hole 12 of the positioning core rod 10 and the second through hole 44 of the joint 40; the air guide pipe 60 penetrates through the sleeve space 61 between the outer wall of the positioning core rod 10 and the inner wall of the positioning core rod 10, so that when the metal core needle 71 of the glass stem 70 is clamped and fastened in the positioning groove 15, the exhaust pipe 72 of the glass stem 70 can be sleeved in the sleeve space 61.

[0059] In the prior art, Figure 8As shown, the glass stem 70 of the X-ray tube includes a metal pin 71 and an exhaust pipe 72. When the glass stem 70 of the X-ray tube is sealed and fired with the glass envelope, the metal pin 71 of the glass stem 70 is a thin metal piece, and it is easy to deform under the clamping force when directly clamped. Therefore, the glass stem 70 is generally fixed by clamping the exhaust pipe 72 in the center of the glass stem 70. However, during the glass firing process, the exhaust pipe 72 is very easy to soften and deform due to the high temperature required to heat the glass to a molten state, and the exhaust pipe 72 itself also has defects such as uneven wall thickness and poor concentricity. This can cause the size precision of the sealing during the sealing and firing of the glass stem 70 and the glass envelope to be unable to be accurately controlled, especially the position and concentricity between the glass stem 70 and the electrode, thereby affecting the technical indicators such as the focal spot position, focal spot size and focal spot coincidence of the X-ray tube, resulting in low production yield and poor delivery quality of the X-ray tube.

[0060] The utility model discloses a positioning slot 15 is constituted to the positioning slot 11 of positioning mandrel 10 and the inner wall of elastic sleeve 21 of fixed sleeve 20 through setting, and can be through the deformation of elastic sleeve 21 that sets in the fixed sleeve 20 outside with locking sleeve, make the side wall length of positioning slot 15 reduce, thereby can make the metal pin 71 of glass stem 70 can be clamped fastening in positioning slot 15, and the metal pin 71 is supported by positioning mandrel 10 and will not be forced to deform, and the set space 61 between the air guide pipe 60 that penetrates the air nozzle 50 and positioning mandrel 10 can set the exhaust pipe 72 of glass stem 70, make glass stem 70 can keep high-precision position alignment with electrode when sealing and firing, guarantee the distance and concentricity error of glass stem 70 and electrode when glass sealing can be controlled within 0.1 millimeter, not affected by the problems such as high temperature, exhaust pipe softening, size difference when glass sealing, can always accurate and reliable fixed glass stem 70, reduce the size error of glass stem 70 after sealing, improve product manufacturing process yield, guarantee the technical index qualified rate of X-ray tube, in addition, the X-ray tube manufacturing process device given by the utility model only needs to rotate and push the locking sleeve to the elastic sleeve 21 deformation extrusion metal pin 71 to realize accurate positioning of glass stem 70, and the time of clamping and taking out glass stem 70 is very short, and the operation is simple and convenient, can save operation time, improve production efficiency, and be favorable to the application in actual production process.

[0061] In one embodiment, the main body of the positioning mandrel 10 is a cylindrical structure.

[0062] In one embodiment, the positioning mandrel 10 includes n positioning notches 11, and the glass stem 70 positioned and fastened includes n metal pins 71. The positioning notches 11 and the metal pins 71 are in one-to-one correspondence, and n is an integer greater than or equal to 2.

[0063] The present invention can further improve the positioning accuracy of the glass stem 70 by arranging each metal core needle 71 with a corresponding positioning notch 11 for positioning.

[0064] In one embodiment, the positioning notches 11 are evenly distributed along the circumference of the outer wall of the positioning core rod 10 .

[0065] In one embodiment, Figure 3 As shown, the elastic sleeve 21 includes two or more elastic claw surfaces 23 and a fixed annular surface 24 arranged in a surrounding manner. There is a deformation gap between two adjacent elastic claw surfaces 23 as a deformation space 25 of the elastic sleeve 21. The fixed annular surface 24 is fixedly connected to each of the elastic claw surfaces 23. The deformation space 25 at the position where two adjacent elastic claw surfaces 23 are fixedly connected to the fixed annular surface 24 is an arc-shaped opening 26.

[0066] The utility model provides elastic claw surfaces 23 with deformable spaces 25 and arc-shaped openings 26 between each other as the elastic sleeve 21, which can reduce the stress inside the elastic sleeve 21 when it is deformed, thereby increasing the service life of the elastic sleeve 21 and improving the reliability of the X-ray tube manufacturing process device.

[0067] Preferably, if Figure 3 As shown, the arc-shaped opening 26 is a major arc opening with a circumferential angle greater than 180°.

[0068] The present invention sets the arc-shaped opening 26 as a preferred arc, which can further reduce the stress on the elastic sleeve 21 during deformation, thereby increasing the service life of the elastic sleeve 21 and improving the reliability of the X-ray tube manufacturing process device.

[0069] In one embodiment, Figure 3 As shown, the elastic sleeve 21 includes four elastic claw surfaces 23 arranged in a circumferential manner, forming a first conical surface 22 with a cross opening.

[0070] In one embodiment, a second external snap-fit ​​structure 13 is provided on the outer wall of the end of the positioning core rod 10 away from the positioning groove 15, and a second internal snap-fit ​​structure is provided on the inner wall of the end of the fixing sleeve 20 away from the elastic sleeve 21; the second external snap-fit ​​structure 13 and the second internal snap-fit ​​structure are snap-fitted and fixed to fix the positioning core rod 10 and the fixing sleeve 20 in fixed connection.

[0071] In one embodiment, Figures 1-3As shown, the second outer engagement structure 13 is a first outer mesa 13, and the second inner engagement structure is a first inner mesa; when the fixing sleeve 20 is sleeved on the outer wall of the positioning mandrel 10, the first outer mesa 13 is attached to the first inner mesa, and the connection gap between the first outer mesa 13 and the first inner mesa is fixed by laser welding circumferential dotting 16.

[0072] The first outer mesa 13 and the first inner mesa are fixed by laser welding circumferential dotting 16, which can improve the fixing strength between the fixing sleeve 20 and the positioning mandrel 10, limit the fixing sleeve 20 and the positioning mandrel 10, further ensure the positioning accuracy of the glass core column 70, and prolong the service life of the X-ray tube manufacturing process device.

[0073] In one embodiment, as shown in Figures 3-4 As shown, the first outer engagement structure 27 is an outer thread 27, and the first inner engagement structure 32 is an inner thread 32; the locking sleeve is sleeved on the fixing sleeve 20 and is rotated and advanced in the direction of the elastic sleeve 21, so that the outer thread 27 and the inner thread 32 are threadedly fastened.

[0074] The locking sleeve and the fixing sleeve 20 are provided with a threaded structure, the threaded structure is threadedly fastened, the elastic sleeve 21 is deformed under pressure, the second tapered surface 31 of the rotating and advancing locking sleeve is pressed against the first tapered surface 22 of the elastic sleeve 21, the locking sleeve and the fixing sleeve 20 are fixedly engaged, the reliability of positioning the glass core column 70 is ensured, the operation is simple and convenient, and the production efficiency is improved.

[0075] In one embodiment, the joint 40 and the positioning mandrel 10 are fixedly connected at a position provided with a fixed engagement structure, and the joint 40 and the positioning mandrel 10 are fixedly connected through the fixed engagement structure.

[0076] In one embodiment, as shown in Figure 2 And Figure 5 As shown, the fixed engagement structure is a second outer mesa 47 of the joint 40 close to one end of the positioning mandrel 10 and a second inner mesa 14 of the positioning mandrel 10 close to one end of the joint 40; when the joint 40 and the positioning mandrel 10 are fixedly connected, the second outer mesa 47 is attached to the second inner mesa 14, and the connection gap between the second outer mesa 47 and the second inner mesa 14 is fixed by laser welding circumferential dotting 16.

[0077] The present invention fixes the second outer table 47 and the second inner table 14 at a gap at the connection by laser welding circumferential dots 16, thereby improving the fixing strength between the joint 40 and the positioning core rod 10, and at the same time limiting the joint 40 and the positioning core rod 10, further ensuring the positioning accuracy of the glass core column 70, and improving the service life of the X-ray tube manufacturing process device.

[0078] Specifically, the joint 40 is used to connect and support the positioning core rod 10, the fixing sleeve 20 and the locking sleeve, and connect the air nozzle 50 and the air guide tube 60; when sealing and firing the glass core column 70, the glass lathe can directly clamp the bottom of the joint 40.

[0079] In one embodiment, Figure 6 As shown, the air nozzle 50 includes an insertion portion 52 and a locking portion 53; the outer diameter of the insertion portion 52 is less than or equal to the inner diameter of the end of the connector 40 close to the fixed structure 41, so that the insertion portion 52 can be inserted into the end of the connector 40 close to the fixed structure 41; the outer diameter of the locking portion 53 is greater than the inner diameter of the end of the connector 40 close to the fixed structure 41, so that the locking portion 53 can lock the air nozzle 50 at the end of the connector 40 close to the fixed structure 41.

[0080] The utility model sets a locking portion 53 to limit the air nozzle 50, which can control the air guide tube 60 from excessively extending toward the end of the positioning core rod 10 to position the glass core column 70, thereby avoiding the air guide tube 60 affecting the positioning of the glass core column 70 due to the displacement of the air nozzle 50 in the joint 40, thereby improving the reliability of positioning the glass core column 70.

[0081] In one embodiment, Figure 6 As shown, the outer wall of one end of the air nozzle 50 close to the locking portion 53 is a pagoda-shaped joint 5440.

[0082] The utility model provides a pagoda-shaped joint 5440 on the outer wall of one end of the gas nozzle 50 close to the locking portion 53, which is beneficial to the air tightness between the gas nozzle 50 and the rubber hose when the gas nozzle 50 is subsequently connected to the rubber hose for providing protective gas.

[0083] In one embodiment, Figure 5 As shown, the second through hole 44 of the joint 40 is a variable diameter through hole, and the variable diameter through hole includes a first aperture 45 and a second aperture 46; the inner diameter of the first aperture 45 close to the fixing structure 41 is greater than or equal to the outer diameter of the insertion part 52 of the gas nozzle 50, and the inner diameter of the second aperture 46 close to the positioning core rod 10 is greater than or equal to the outer diameter of the exhaust pipe 72.

[0084] The second through hole 44 of the joint 40 is a variable diameter through hole, so that the second through hole 44 can simultaneously adapt to the insertion of the air nozzle 50 and the exhaust pipe 72 with different outer diameters, and the convenience of installation is improved.

[0085] Preferably, the exhaust pipe 72 and the air guide pipe 60 form a sealed connection.

[0086] In one embodiment, as shown in the drawings, the fixing structure 41 is a threaded hole 42 and a screw 43 of the side wall of the joint 40, and when the insertion part 52 is inserted into the joint 40, the screw 43 can be screwed into the threaded hole 42 to tightly engage the insertion part 52 of the air nozzle 50 with the joint 40. Figure 5 The threaded hole 42 and the screw 43 are arranged to realize the tight engagement of the air nozzle 50 and the joint 40, which is convenient to disassemble and assemble, and is conducive to the disassembly and replacement of the air nozzle 50 and the air guide pipe 60, so as to improve the service life and flexibility of the whole device.

[0087] In one embodiment, as shown in the drawings, the fixing structure 41 is a threaded hole 42 and a screw 43 of the side wall of the joint 40, and when the insertion part 52 is inserted into the joint 40, the screw 43 can be screwed into the threaded hole 42 to tightly engage the insertion part 52 of the air nozzle 50 with the joint 40.

[0088] Figure 1 The end face of the end of the air nozzle 50 away from the insertion part 52 is flush with one end of the air guide pipe 60, and the connection gap between the one end of the air guide pipe 60 inserted into the air nozzle 50 and the air nozzle 50 is fixed by laser welding and blocked by tin soldering 55.

[0089] The laser welding and the tin soldering 55 can guarantee the fixing strength between the air guide pipe 60 and the air nozzle 50, further guarantee the positioning accuracy of the glass core column 70, and improve the service life of the X-ray tube manufacturing process device.

[0090] In one embodiment, the main body of the air guide pipe 60 is a thin-walled metal pipe.

[0091] In one embodiment, the air guide pipe 60 is installed at the center of the air nozzle 50, and is used to pass the protective gas into the air guide pipe 60 when the glass core column 70 is subjected to glass sealing, so that the parts are not oxidized due to the high temperature of the sealing glass, thereby further guaranteeing the part size accuracy of the X-ray tube manufacturing process device, reliably positioning the glass core column 70, and controlling the distance and concentricity error of the glass core column 70 to the electrode during sealing to be within 0.1 mm, and improving the yield rate of product manufacturing process.

[0092] Specifically, each component in the above content can be separately installed or integrally formed, and can be selected according to the processing level and requirements.

[0093] ​In one embodiment, Figure 1 As shown, the main bodies of the various components in the X-ray tube manufacturing process device are all cylindrical structures, and each component is made of stainless steel. The air guide tube 60 is a thin-walled seamless stainless steel tube.

[0094] In one embodiment, all threads are arranged at a position away from the high temperature hot zone to prevent the disadvantage of threads being stuck due to heat.

[0095] In one embodiment, the assembly method of the X-ray tube manufacturing process device is as follows:

[0096] Step 1: Insert one end of the positioning core rod 10 with the positioning notch 11 along the through hole end of the fixing sleeve 20 with the first inner table surface. After the first outer table surface 13 of the positioning core rod 10 completely falls into the first inner table surface of the fixing sleeve 20, the gap between the first outer table surface 13 and the first inner table surface is as shown in FIG. Figure 9 The laser welding circumferential dots 16 are fixed to form a component 81;

[0097] Step 2: Insert one end of the connector 40 with the second outer surface 47 into the end through-hole of the second inner surface 14 in the positioning core rod 10 of the component 1 81. After the second outer surface 47 of the connector 40 is completely fitted with the second inner surface 14 of the positioning core rod 10, the gap between the second outer surface 47 and the second inner surface 14 is as shown in FIG. Figure 10 The laser welding circumferential dots 16 are fixed to form component two 82;

[0098] Step 3: Insert the connector 40 of the second component 82 along the through hole of the locking sleeve close to the second tapered surface 31. After the external thread 27 of the fixing sleeve 20 of the second component 82 contacts the internal thread 32 of the locking sleeve, Figure 11 As shown, by rotating the second component 82 or the locking sleeve, the locking sleeve is installed to form the third component 83;

[0099] Step 4: Insert any end of the air guide tube 60 along the through hole at the pagoda-shaped end of the air nozzle 50. After the other end of the air guide tube 60 is aligned with the end face of the pagoda-shaped end of the air nozzle 50, close the gap between the air guide tube 60 and the air nozzle 50. Figure 12 As shown, laser welding is first performed to fix the points, and then soldering 55 to block the gap to form component four 84;

[0100] Step 5: Insert the inserting portion 52 of the nozzle 50 of the fourth component 84 along the first aperture 45 of the threaded hole 42 of the connector 40 of the third component 83. When the end of the nozzle 50 away from the inserting portion 52 is completely in contact with the end surface of the connector 40, Figures 13-14 The figure shows that the screw 43 is tightened through the threaded hole 42 to clamp the gas nozzle 50 to form a complete X-ray tube manufacturing process device 85.

[0101] In one embodiment, the operation method of positioning the glass core column 70 of the X-ray tube manufacturing process apparatus is as follows:

[0102] will be as Figure 1 The metal core pin 71 of the glass stem 70 is aligned with and inserted into the corresponding positioning notch 11 of the positioning core rod 10 of the X-ray tube manufacturing process device. By rotating the locking sleeve, the second tapered surface 31 of the locking sleeve pushes the first tapered surface 22 of the elastic sleeve 21 in a conical shape, thereby clamping the metal core pin 71 of the glass stem 70, thereby fixing the entire glass stem 70.

[0103] When the glass stem 70 needs to be removed, the locking sleeve can be rotated in the opposite direction so that the second conical surface 31 of the locking sleeve no longer presses the first conical surface 22 of the elastic sleeve 21. The elastic sleeve 21 loosens the fastening of the metal core pin 71, and the glass stem 70 can be directly removed.

[0104] The X-ray tube manufacturing process device of the present invention directly clamps the metal core needle 71 of the glass core column 70. During the glass sealing and firing process, the metal core needle 71 is used for positioning, and the device is not affected by problems such as high temperature during glass sealing, softening of the tube, and size differences. The device can always accurately and reliably fix the glass core column 70, ensuring that the electrode distance and concentricity errors during glass sealing can be controlled within 0.1 mm, thereby improving the yield rate of the product manufacturing process. At the same time, the X-ray tube manufacturing process device is simple and convenient to operate, can save operating time, and improve production efficiency.

[0105] In summary, the X-ray tube manufacturing process device of the present invention can form a positioning groove by arranging a positioning notch and an elastic sleeve, cooperate with the locking sleeve to position the metal core pin of the glass core column, and position the exhaust pipe between the air guide tube and the positioning core rod, so that the glass core column is not affected by high temperature, softening of the exhaust pipe and other problems during sealing and firing, so that the glass core column can maintain high-precision position alignment with the electrode during sealing and firing, reduce dimensional errors after sealing, ensure the qualified rate of technical indicators of the X-ray tube, and improve the manufacturing yield of the X-ray tube; at the same time, the structure, installation and operation of the device are simple and convenient, which can save operation time and improve production efficiency.

[0106] Therefore, the utility model effectively overcomes various shortcomings of the prior art and has high industrial utilization value.

[0107] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed in the present invention are intended to be covered by the claims of the present invention.

Claims

1. An X-ray tube manufacturing process device, characterized in that: The X-ray tube manufacturing process device comprises: a positioning core rod, a fixing sleeve, a locking sleeve, a joint, an air nozzle and an air guide tube; The positioning core rod includes a positioning notch and a first through hole, the first through hole passing through both ends of the positioning core rod, and the positioning notch is located on the outer wall of one end of the positioning core rod; the fixing sleeve includes an elastic sleeve, the inner wall of the elastic sleeve surrounds the positioning notch and forms a positioning groove with the positioning notch, and the positioning groove is used to position and fasten the glass core column of the X-ray tube; the fixing sleeve is sleeved on the outer wall of the positioning core rod, and the position of the positioning core rod where the positioning notch is not provided is fixedly connected to the fixing sleeve; The outer surface of the elastic sleeve is a first conical surface, and the inner surface of the locking sleeve includes a second conical surface; the second conical surface can be arranged outside the first conical surface to cause the first conical surface to be squeezed and deformed. The deformation of the first conical surface reduces the diameter of the side wall of the positioning groove, so that the metal core pin of the glass stem can be clamped and fastened in the positioning groove; The outer surface of the fixing sleeve, excluding the elastic sleeve, includes a first external engaging structure, and the inner surface of the locking sleeve also includes a first internal engaging structure; when the locking sleeve is arranged outside the fixing sleeve so that the second conical surface presses the first conical surface, the first external engaging structure engages with the first internal engaging structure, so that the fixing sleeve and the locking sleeve are fixedly engaged; The joint is fixedly connected to the end of the positioning core rod where the positioning notch is not provided, and a fixing structure is provided at the end of the joint that is not connected to the positioning core rod, and the gas nozzle and the joint are detachably fixedly connected via the fixing structure; the gas nozzle includes a third through hole, and the air guide tube passes through the third through hole of the gas nozzle and is fixedly connected to the gas nozzle; the joint includes a second through hole, and when the gas nozzle is fixedly connected to the joint, the air guide tube also passes through the first through hole of the positioning core rod and the second through hole of the joint; there is a sleeve space between the outer wall of the positioning core rod and the inner wall of the positioning core rod where the air guide tube passes, so that when the metal core needle of the glass core column is clamped and fastened in the positioning groove, the exhaust pipe of the glass core column can be sleeved in the sleeve space.

2. The X-ray tube manufacturing process device according to claim 1, characterized in that: The positioning core rod includes n positioning notches, and the glass core column for positioning and fastening includes n metal core needles. The positions of the positioning notches and the metal core needles correspond to each other, and n is an integer greater than or equal to 2.

3. The X-ray tube manufacturing process device according to claim 1, characterized in that: The elastic sleeve includes two or more elastic claw surfaces and a fixed annular surface arranged in a surrounding manner. There is a deformation gap between two adjacent elastic claw surfaces as the deformation space of the elastic sleeve. The fixed annular surface is fixedly connected to each of the elastic claw surfaces. The deformation space at the position where two adjacent elastic claw surfaces are fixedly connected to the fixed annular surface is an arc-shaped opening.

4. The X-ray tube manufacturing process device according to claim 1, characterized in that: A second external snap-fit ​​structure is provided on the outer wall of the end of the positioning core rod away from the positioning groove, and a second internal snap-fit ​​structure is provided on the inner wall of the end of the fixing sleeve away from the elastic sleeve; the second external snap-fit ​​structure and the second internal snap-fit ​​structure are snap-fitted and fixed to fix the positioning core rod and the fixing sleeve in fixed connection.

5. The X-ray tube manufacturing process device according to claim 4, characterized in that: The second outer engaging structure is the first outer table surface, and the second inner engaging structure is the first inner table surface; when the fixing sleeve is arranged on the outer wall of the positioning core rod, the first outer table surface is fitted with the first inner table surface, and the gap at the connection between the first outer table surface and the first inner table surface is fixed by laser welding circumferential dot punching.

6. The X-ray tube manufacturing process device according to claim 1, characterized in that: The first external engaging structure is an external thread, and the first internal engaging structure is an internal thread; the locking sleeve is arranged outside the fixing sleeve and rotated and pushed toward the elastic sleeve, so that the external thread and the internal thread form a threaded fastening.

7. The X-ray tube manufacturing process device according to claim 1, characterized in that: A fixed engaging structure is provided at the position where the joint is fixedly connected to the positioning core rod, and the joint and the positioning core rod are fixedly connected through the fixed engaging structure.

8. The X-ray tube manufacturing process device according to claim 7, characterized in that: The fixed engaging structure is a second outer surface of the joint close to one end of the positioning core rod and a second inner surface of the positioning core rod close to one end of the joint; when the joint is fixedly connected to the positioning core rod, the second outer surface is fitted with the second inner surface, and the gap at the connection between the second outer surface and the second inner surface is fixed by laser welding circumferential dot punching.

9. The X-ray tube manufacturing process device according to claim 1, characterized in that: The air nozzle includes an insertion part and a locking part; the outer diameter of the insertion part is less than or equal to the inner diameter of the end of the joint close to the fixed structure, so that the insertion part can be inserted into the end of the joint close to the fixed structure; the outer diameter of the locking part is greater than the inner diameter of the end of the joint close to the fixed structure, so that the locking part can lock the air nozzle at the end of the joint close to the fixed structure.

10. The X-ray tube manufacturing process device according to claim 9, characterized in that: The second through hole of the joint is a variable diameter through hole, and the variable diameter through hole includes a first aperture and a second aperture; the inner diameter of the first aperture close to the fixing structure is greater than or equal to the outer diameter of the insertion portion of the gas nozzle, and the inner diameter of the second aperture close to the positioning core rod is greater than or equal to the outer diameter of the exhaust pipe; And / or, the fixing structure is a threaded hole and a screw on the side wall of the joint. When the insertion part is inserted into the joint, the screw can be tightened into the threaded hole to fasten the insertion part of the gas nozzle to the joint.

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