A vacuum brazing tool applied to an X-ray tube core

Abstract

This utility model discloses a vacuum brazing fixture for X-ray tube cores, including a controller, a vacuum pump, a power distribution cabinet, a vacuum furnace, a support plate, and a heating band. The vacuum furnace has a receiving space, with an opening at one end communicating with the receiving space. A sealing door is rotatably located at one end of the vacuum furnace. The support plate is placed within the receiving space to support the product to be welded. The heating band is arranged in multiple loops around the side walls of the receiving space to heat it. The vacuum pump's vacuum port is connected to the receiving space through a pipe body to evacuate the receiving space. Through this method, the brazing fixture disclosed in this utility model can remove dust and impurities from the vacuum furnace by evacuating the interior, allowing the X-ray tube core to be brazed in a vacuum environment. This results in better uniformity, stability, and sealing of the welded X-ray tube core, significantly extending its service life.

Description

Technical Field

[0001] This utility model relates to the field of X-ray technology, specifically a vacuum brazing fixture for use with X-ray tube cores. Background Technology

[0002] The X-ray tube core consists of a cathode, an anode target, and a metal casing. X-rays are emitted by the cathode through a filament heating electrons. The anode target receives the electrons emitted by the cathode under the action of a high-voltage electric field. The minute electron kinetic energy after the electrons collide with the anode target is converted into X-rays.

[0003] Generally, X-ray tube cores on the market are usually soldered together using a soldering method. However, the soldering environment is usually in an open factory, where there is a lot of dust and impurities. During soldering, these dust and impurities will affect the soldering quality, resulting in poor uniformity, stability, and sealing of the soldered X-ray tube core. This will make the X-ray tube core prone to internal short circuits or breakdowns during the discharge process in the high-voltage electric field during subsequent operation, seriously affecting the service life of the X-ray tube core. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a vacuum brazing fixture for X-ray tube cores to solve the aforementioned technical problems.

[0006] (II) Technical Solution

[0007] To solve the above-mentioned technical problems, this utility model provides a technical solution: a vacuum brazing fixture for X-ray tube cores, comprising a controller, a vacuum pump electrically connected to the controller, and a power distribution cabinet electrically connected to the controller. The fixture further comprises: a vacuum furnace with supporting feet at its bottom, wherein the vacuum furnace has a cylindrical receiving space inside, and one end of the vacuum furnace has an opening communicating with the receiving space; a sealing door rotatably disposed at one end of the vacuum furnace for sealing the opening; a support plate disposed within the receiving space for supporting the product to be welded; a heating band arranged in multiple loops around the side wall of the receiving space for heating the receiving space, wherein the heating band is electrically connected to the power distribution cabinet via an electric busbar; wherein the vacuum pump's vacuum port communicates with the receiving space through a tube body to evacuate the receiving space using the vacuum pump.

[0008] Preferably, the multi-ring heating band is formed by multiple unconnected electric heating wires arranged in parallel around each other.

[0009] Preferably, the multi-ring heating belt is arranged along the length of the housing space of the vacuum furnace.

[0010] Preferably, the support plate is provided with a plurality of flow holes at intervals, wherein the support plate is provided on the side wall of the receiving space by a plurality of support columns, and the support columns are provided between two adjacent heating bands.

[0011] Preferably, the support plate and the support column are made of non-conductive and non-thermal conductive materials.

[0012] Preferably, the outer diameter of the annular ring formed by the heating band is equal to the aperture of the receiving space.

[0013] Preferably, a support portion is provided on one side wall of one end of the vacuum furnace, and a support rod is rotatably disposed in the support portion, wherein one end of the support rod is connected to the controller.

[0014] Preferably, the other side wall of one end of the vacuum furnace is provided with an extension, in which a rotating shaft is rotatably disposed, wherein both ends of the rotating shaft are exposed outside the extension. The sealing door is provided with a first connecting part and a second connecting part at intervals, wherein the first connecting part is connected to one end of the rotating shaft and the second connecting part is connected to the other end of the rotating shaft.

[0015] Preferably, the edge of the sealing door is provided with a plurality of positioning parts at intervals, the positioning parts are provided with positioning holes, and the edge of one end of the vacuum furnace is provided with a plurality of positioning pins for insertion into the positioning holes at intervals.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a vacuum brazing fixture for X-ray tube cores, which has the following beneficial effects: The vacuum brazing fixture disclosed in this utility model uses a vacuum pump to evacuate the vacuum furnace, so that moisture, dust and impurities in the vacuum furnace are removed from the vacuum furnace, thereby allowing the X-ray tube core to be brazed in a high-cleanliness vacuum state. This also ensures that the inside of the X-ray tube core is in a vacuum state, preventing abnormal discharge and tube core breakdown in a high-voltage electric field. This significantly improves the uniformity, stability and sealing of the brazed X-ray tube core, and greatly extends the service life of the X-ray tube core. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the vacuum brazing fixture of this utility model applied to X-ray tube cores;

[0019] Figure 2 for Figure 1 A partial structural diagram of the brazing fixture;

[0020] Figure 3 for Figure 2 A three-dimensional structural diagram of the central support plate;

[0021] Figure 4 for Figure 2 A three-dimensional structural diagram of a medium vacuum furnace;

[0022] Figure 5 for Figure 1 A schematic diagram of the second part of the brazing fixture. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figure 1-5 As shown, this utility model discloses a vacuum brazing fixture for X-ray tube cores, including a controller 1, a vacuum pump 2 electrically connected to the controller 1, a power distribution cabinet 3 electrically connected to the controller 1, a vacuum furnace 4, a support plate 5, and a heating belt 6.

[0025] The vacuum furnace 4 has a support foot 41 at the bottom. The vacuum furnace 4 has a cylindrical receiving space 40 inside. One end of the vacuum furnace 4 has an opening that communicates with the receiving space 40. A sealing door 42 for sealing the opening is rotatably provided at one end of the vacuum furnace 4.

[0026] The support plate 5 is disposed within the receiving space 40 to support the product 7 to be welded. It should be understood that the product 7 to be welded consists of two structures of the X-ray tube core that need to be welded. Solder is placed between these two structures, and vacuum brazing can be performed within the receiving space 40.

[0027] The heating band 6 is arranged in multiple loops around the side wall of the receiving space 40 to heat the receiving space 40 so that the product 7 to be welded can be welded.

[0028] Preferably, the heating band 6 is electrically connected to the distribution cabinet 3 via the electric busbar 61, so that the distribution cabinet 3 supplies power to the heating band 6 for heating. That is, the heating band 6, the electric busbar 61, and the distribution cabinet 3 form a conductive circuit. It should be understood that the heating band 6 may include electric heating wires or other heating materials, which will generate heat when energized.

[0029] It is understandable that after the product 7 to be welded is placed on the support plate 5, the heating belt 6 will raise the temperature of the containment space 40 of the vacuum furnace 4 to an ultra-high temperature, melting the solder of the product 7 to be welded, so as to complete the welding of the product. This brazing process does not require human contact, and the moisture of each component of the product 7 (X-ray tube core) will also be taken away by the high temperature.

[0030] In this embodiment, the vacuum pump 2's vacuum port is connected to the containment space 40 through a tube, so that the containment space 40 can be evacuated by the vacuum pump 2.

[0031] It should be understood that welding in a vacuum environment will not leave dust, impurities, or other substances at the weld joint or inside the X-ray tube core. Furthermore, the vacuum environment can improve the uniformity and sealing of the welding process. When the inside of the X-ray tube core is in a stable vacuum environment, it can also ensure the efficiency of X-ray generation and the stability during use, thereby further extending the product's service life.

[0032] Preferably, the multi-ring heating band 6 is formed by multiple unconnected electric heating wires arranged in parallel. That is, the distribution cabinet 3 is electrically connected to the multiple unconnected electric heating wires via the busbar 61.

[0033] Preferably, the outer diameter of the annular ring formed by the heating band 6 is equal to the aperture of the receiving space.

[0034] Furthermore, the multi-ring heating belt 6 is arranged along the length of the containment space 40 of the vacuum furnace 4, so that the entire containment space 40 can be heated evenly.

[0035] It is understandable that since the heating band 6 is formed by parallel and unconnected electric heating wires, when the containment space of the vacuum furnace 4 is heated, multiple rings of heating band 6 heat and act on the containment space at the same time, so that the internal temperature of the containment space can be uniform. The multiple rings of heating band 6 arranged along the length of the containment space of the vacuum furnace 4 can make the temperature of the containment space change synchronously (such as heating up or cooling down at the same time).

[0036] In this embodiment, the support plate 5 is provided with multiple flow holes 51 at intervals (to facilitate heat flow). The support plate 5 is provided on the side wall of the receiving space by multiple support columns 52, and the support columns 52 are provided between two adjacent heating bands 6. That is to say, the temperature of the heating band 6 can be applied to the bottom of the product 7 to be welded through the multiple flow holes 51, so that all parts of the product 7 to be welded can be heated at high temperature.

[0037] Furthermore, the support plate 5 and the support column 52 are made of non-conductive and non-thermal conductive materials.

[0038] In this embodiment, a support portion 43 is provided on one side wall of one end of the vacuum furnace 4, and a support rod 431 is rotatably disposed in the support portion 43, wherein one end of the support rod 431 is connected to the controller 1. It should be understood that the controller 1 is rotatably disposed in the support portion 43 via the support rod 431, and the position of the controller 1 can be flexibly adjusted.

[0039] Furthermore, an extension 44 is provided on the other side wall of one end of the vacuum furnace 4. A rotating shaft 441 is rotatably disposed in the extension 44, wherein both ends of the rotating shaft 441 are exposed outside the extension 44. A sealing door 42 is provided with a first connecting part 421 and a second connecting part 422 at intervals. The first connecting part 421 is connected to one end of the rotating shaft 441, and the second connecting part 422 is connected to the other end of the rotating shaft 441, so that the sealing door 42 is rotatably disposed on the extension 44 through the first connecting part 421 and the second connecting part 422.

[0040] Preferably, the edge of the sealing door 42 is provided with a plurality of positioning parts 423 at intervals, and the positioning parts 423 are provided with positioning holes. The edge of one end of the vacuum furnace 4 is provided with a plurality of positioning pins 424 for insertion into the positioning holes at intervals.

[0041] It is understandable that after opening the sealing door 42 and placing the product 7 to be welded onto the support plate 5, the sealing door 42 can be closed, and then further sealed by the multiple positioning parts 423 at the edge of the sealing door 42, ensuring that no air enters the vacuum furnace 4, so that the vacuum pump 2 can evacuate the vacuum furnace 4 into a vacuum.

[0042] It is worth noting that the controller 1, vacuum pump 2 and power distribution cabinet 3 in this application can all be implemented using products in the prior art, and their principles and structures will not be described in detail here.

[0043] Specific working principle:

[0044] When welding products are required, the two structures to be welded are placed on the support plate 5. At this time, the two structures on the support plate 5 are tightly connected to each other (such as one structure placed on top of another structure) and solder is placed in the middle. The sealing door 42 is closed. Then, the vacuum pump 2 is controlled by the controller 1 to evacuate the vacuum furnace 4. After the vacuum is evacuated, the power distribution cabinet 3 can be controlled by the controller 1 to power the heating belt 6 so that the vacuum furnace 4 can be heated by the heating belt 6, so that the two structures to be welded can be vacuum brazed in the vacuum furnace 4.

[0045] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0046] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vacuum brazing fixture for X-ray tube cores, comprising a controller, a vacuum pump electrically connected to the controller, and a power distribution cabinet electrically connected to the controller, characterized in that, Also includes: A vacuum furnace has a support foot at its bottom. The vacuum furnace has a cylindrical receiving space inside, and one end of the vacuum furnace has an opening communicating with the receiving space. A sealing door for sealing the opening is rotatably provided at one end of the vacuum furnace. A support plate, disposed within the receiving space, is used to support the product to be welded; A heating band, arranged in multiple loops around the side wall of the receiving space, is used to heat the receiving space. The heating band is electrically connected to the power distribution cabinet via an electric busbar. The vacuum pump's vacuum port is connected to the containment space via a tube, so that the containment space can be evacuated by the vacuum pump.

2. The vacuum brazing fixture according to claim 1, characterized in that, The multi-ring heating band is formed by multiple unconnected electric heating wires arranged in parallel around each other.

3. The vacuum brazing fixture according to claim 2, characterized in that, The multi-ring heating belt is arranged along the length of the housing space of the vacuum furnace.

4. The vacuum brazing fixture according to claim 2, characterized in that, The support plate is provided with a plurality of flow holes at intervals, wherein the support plate is provided on the side wall of the receiving space by a plurality of support columns, and the support columns are provided between two adjacent heating bands.

5. The vacuum brazing fixture according to claim 4, characterized in that, The support plate and the support column are made of non-conductive and non-thermal conductive materials.

6. The vacuum brazing fixture according to claim 1, characterized in that, The outer diameter of the annular ring formed by the heating band is equal to the aperture of the receiving space.

7. The vacuum brazing fixture according to claim 1, characterized in that, A support portion is provided on one side wall of one end of the vacuum furnace, and a support rod is rotatably arranged in the support portion, wherein one end of the support rod is connected to the controller.

8. The vacuum brazing fixture according to claim 1, characterized in that, An extension is provided on the other side wall of one end of the vacuum furnace. A rotating shaft is rotatably provided in the extension, and both ends of the rotating shaft are exposed outside the extension. The sealing door is provided with a first connecting part and a second connecting part at intervals, and the first connecting part is connected to one end of the rotating shaft, and the second connecting part is connected to the other end of the rotating shaft.

9. The vacuum brazing fixture according to claim 8, characterized in that, The edge of the sealing door is provided with multiple positioning parts at intervals, and each positioning part is provided with a positioning hole. The edge of one end of the vacuum furnace is provided with multiple positioning pins at intervals for insertion into the positioning holes.

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