An x-ray tube filament shaping apparatus

Abstract

The utility model relates to a lamp filament shaping device technical field, especially x ray tube lamp filament shaping equipment, its characterized in that, the operating table upper end fixedly connected with sealed base, the sealed base inlays with a plurality of around its axis even distribution's binding post, the elevating gear drive has the lifting plate, the lifting plate fixedly connected with the bell jar of sealed base insertion, the bell jar left side fixed communication has the air inlet pipe, the bell jar right side fixed communication has the air outlet pipe, the sealed base middle part is arranged with clamp, the clamp includes with sealed base coaxial fixedly connected has the stand, the slide way vertical sliding clamping has the sliding block, the sliding block integrally connected with the roof, the stand fixedly connected with the bottom plate corresponding with the roof, the bottom plate upper end fixedly connected with a plurality of arc lower clamping plate, the roof fixedly connected with a plurality of arc upper clamping plate with lower clamping plate one to one and, the slide way coaxial rotation connection has with the sliding block middle part screw thread connection's screw rod.

Description

Technical Field

[0001] This utility model relates to the technical field of filament shaping devices, and in particular to an X-ray tube filament shaping device. Background Technology

[0002] The filament of an X-ray tube is the emission source of the X-ray tube. The filament is typically helical. This type of filament often experiences stress during assembly due to external forces. This stress can lead to problems during subsequent aging and testing processes, especially when the filament's operating temperature reaches 2500°C. 0 When the temperature reaches approximately C, the filament will deform to release stress, which in turn will cause the focal spot shape of the X-ray tube to change, thereby affecting the accuracy of the imaging quality of the diagnostic image. In order to avoid this phenomenon, it is necessary to release the stress generated by the filament assembly and then shape the filament. In this regard, this application proposes an X-ray tube filament shaping device. Utility Model Content

[0003] In view of the above situation and to overcome the defects of the existing technology, this utility model provides an X-ray tube filament shaping device. The technical solution it solves is as follows: it includes an operating table, characterized in that a sealing base is fixedly connected to the upper end of the operating table, the sealing base is embedded with a plurality of terminals evenly distributed around its axis, a lifting device is provided at the upper end of the operating table, the lifting device drives a lifting plate, a bell jar that is inserted into the sealing base is fixedly connected to the lifting plate, an air inlet pipe is fixedly connected to the left side of the bell jar, an air outlet pipe is fixedly connected to the right side of the bell jar, and a clamp is arranged in the middle of the sealing base;

[0004] The clamp includes a column coaxially fixedly connected to the sealing base. A slide rail is provided on the upper part of the column. A slider is vertically slidably mounted on the slide rail. A top plate is integrally connected to the slider. A bottom plate corresponding to the top plate is fixedly connected to the column. Several arc-shaped lower clamping plates are fixedly connected to the upper part of the bottom plate. Several arc-shaped upper clamping plates corresponding one-to-one with the lower clamping plates are fixedly connected to the top plate. A screw threadedly connected to the middle of the slider is coaxially rotatably connected to the slide rail.

[0005] Preferably, a sealing ring is integrally and coaxially arranged on the upper end of the sealing base, and a sealing groove is coaxially opened on the upper end of the sealing ring to be inserted into the lower edge of the bell jar. A sealing gasket is coaxially laid on the bottom surface of the sealing groove.

[0006] Preferably, the lifting device includes two vertical rods fixedly connected to the operating table, a support plate fixedly connected to the upper end of the two vertical rods, a lead screw arranged in the middle of the two vertical rods, the upper and lower ends of the lead screw being rotatably connected to the support plate and the operating table respectively, the lead screw being threadedly connected to the lifting plate, both vertical rods being slidably connected to the lifting plate, and a stepper motor for driving the lead screw being fixedly connected to the support plate.

[0007] Preferably, the lower end of the operating table is fixedly connected to four support legs arranged in a rectangular array.

[0008] Preferably, a handwheel is coaxially fixedly connected to the upper end of the screw.

[0009] The beneficial effects of this utility model are:

[0010] In use, this application features a fixture with multiple sets of corresponding upper and lower clamping plates. The upper and lower clamping plates work together to simultaneously fix the cathode components of multiple filaments, allowing for simultaneous shaping of multiple filaments. After fixing the top wire, the filament is connected to the existing shaping circuit via terminals and wires. The lifting device is activated, causing the bell to move downwards and its lower edge to tightly abut against the sealing gasket in the sealing groove, thus sealing the filament within the bell. Protective gas is then introduced into the bell through the inlet pipe to expel air and prevent oxidation of the filament during shaping. A large current is then passed through the existing shaping circuit, causing the filament to deform due to high temperature, releasing the stress generated during assembly. This deformation can be corrected later to restore its natural shape before assembly into the ball tube. This application has a simple structure, is easy to use, and is highly practical. Attached Figure Description

[0011] Figure 1 This is a perspective view of the present invention without the supporting legs.

[0012] Figure 2 This utility model Figure 1 A magnified view of region A in the middle.

[0013] Figure 3 This is a partial three-dimensional view from the first perspective of this utility model.

[0014] Figure 4 This is a second-view perspective stereoscopic view of the present invention.

[0015] Figure Labels

[0016] 1. Operating table, 2. Sealed base, 3. Terminal block, 4. Lifting device, 5. Lifting plate, 6. Bell jar, 7. Air inlet pipe, 8. Air outlet pipe, 9. Clamp, 10. Column, 11. Slide rail, 12. Slider, 13. Top plate, 14. Bottom plate, 15. Lower clamping plate, 16. Upper clamping plate, 17. Screw, 18. Sealing ring, 19. Sealing groove, 20. Sealing gasket, 21. Vertical rod, 22. Support plate, 23. Lead screw, 24. Stepper motor, 25. Support leg, 26. Handwheel. Detailed Implementation

[0017] The following is in conjunction with the appendix Figure 1-4The specific embodiments of this utility model will be described in further detail.

[0018] In the first embodiment, the technical solution is as follows: During use, the clamp 9 is equipped with multiple sets of correspondingly arranged upper clamping plates 16 and clamping plates. This allows for the simultaneous fixing of multiple filament cathode components through the cooperation of the upper clamping plates 16 and lower clamping plates 15, enabling simultaneous shaping of multiple filaments. After fixing the top wire, the filaments are connected to the existing shaping circuit (both the wires and the shaping circuit utilize existing technology and will not be specifically described in this application) via the terminal block 3 and connecting wires. The lifting device 4 is then activated to move the bell jar 6 downwards. The lower edge of the bell jar 6 is tightly pressed against the sealing gasket 20 in the sealing groove 19, so that the filament is sealed inside the bell jar 6. Then, protective gas is introduced into the bell jar 6 through the air inlet pipe 7 to expel the air inside and prevent the filament from being oxidized during the shaping process. Then, a large current is passed through the existing shaping circuit to the filament, causing the filament to deform due to high temperature, thereby releasing the stress generated during assembly. This deformation can be corrected later to restore its natural shape, and then assembled into the ball tube. This application has a simple structure, is easy to use, and has strong practicality.

[0019] In Example 2, based on Example 1, specifically, in use, the cathode portion of the filament to be shaped is first placed in the lower clamping plate 15 above the base plate 14. Then, the screw 17 is rotated clockwise by the handwheel 26. The clockwise rotation of the screw 17 drives the slider 12 to move downward along the slide rail 11 on the column 10. Consequently, the top plate 13, which is integrally arranged with the slider 12, along with the upper clamping plate 16, moves downward together, thereby allowing the upper clamping plate 16 and the lower plate to clamp the cathode component of the filament, thus completing the fastening of the filament to be shaped. Correspondingly, the counterclockwise rotation of the screw 17 drives the slider 12 to move upward along the slide rail 11. Consequently, the top plate 13 and the upper clamping plate 16 move upward and release the fixation of the filament.

[0020] After the filament is fixed by the cooperation of the upper clamping plate 16 and the lower clamping plate 15 of the clamping fixture 9, the stepper motor 24 of the lifting device 4 is started to rotate forward to the set stroke. The forward rotation of the stepper motor 24 will drive the lead screw 23 to rotate forward to the set stroke. The forward rotation of the lead screw 23 will drive the lifting plate 5 to move downward along the vertical rod 21 by the corresponding stroke. Consequently, the bell jar 6, which is fixedly connected to the lifting plate 5, will also move downward by the corresponding stroke. Then, the lower edge of the bell jar 6 will be completely inserted into the sealing groove 19 at the upper end of the sealing ring 18. With the help of the sealing ring, the sealing of the connection between the bell jar 6 and the sealing groove 19 can be ensured. Correspondingly, starting the stepper motor 24 to rotate in reverse to the set stroke will drive the lifting plate 5 and the bell jar 6 to move upward and reset through the lead screw 23.

[0021] After the bell jar 6 is inserted into the sealing groove 19 under the action of the lifting device 4, protective gas is sent into the bell jar 6 through the air inlet pipe 7. The protective gas forces the air in the bell jar 6 to be discharged through the air outlet pipe 8, thus creating a protective atmosphere inside the bell jar 6 and preventing the filament from being oxidized by air during the shaping process. Then, a large current is passed through the existing shaping circuit to the filament, causing the filament to deform due to high temperature, thereby releasing the stress generated during assembly. This deformation can be corrected later to restore its natural shape, and then assembled into the ball tube. This application has a simple structure, is easy to use, and has strong practicality.

[0022] In Example 3, based on Example 2, the sealing base 2 is snapped onto the operating table 1 to facilitate the shaping process, and a support leg 25 is also arranged under the operating table 1.

Claims

1. An X-ray tube filament shaping device, comprising an operating table (1), characterized in that, The upper end of the operating table (1) is fixedly connected to a sealing base (2). The sealing base (2) is fitted with multiple terminals (3) evenly distributed around its axis. The upper end of the operating table (1) is provided with a lifting device (4). The lifting device (4) drives a lifting plate (5). The lifting plate (5) is fixedly connected to a bell jar (6) that is inserted into the sealing base (2). The left side of the bell jar (6) is fixedly connected to an air inlet pipe (7). The right side of the bell jar (6) is fixedly connected to an air outlet pipe (8). A clamp (9) is arranged in the middle of the sealing base (2). The clamp (9) includes a column (10) coaxially fixedly connected to the sealing base (2). A slide rail (11) is provided on the upper part of the column (10). A slider (12) is vertically slidably mounted on the slide rail (11). A top plate (13) is integrally connected to the slider (12). A bottom plate (14) corresponding to the top plate (13) is fixedly connected to the column (10). Several arc-shaped lower clamping plates (15) are fixedly connected to the upper end of the bottom plate (14). Several arc-shaped upper clamping plates (16) corresponding one-to-one with the lower clamping plates (15) are fixedly connected to the top plate (13). A screw (17) threadedly connected to the middle of the slider (12) is coaxially rotatably connected to the slide rail (11).

2. The X-ray tube filament shaping device according to claim 1, characterized in that, The sealing base (2) has a sealing ring (18) coaxially arranged on its upper end. The upper end of the sealing ring (18) is coaxially provided with a sealing groove (19) that is inserted into the lower edge of the bell jar (6). The bottom surface of the sealing groove (19) is coaxially covered with a sealing gasket (20).

3. The X-ray tube filament shaping device according to claim 1, characterized in that, The lifting device (4) includes two vertical rods (21) fixedly connected to the operating table (1). The upper ends of the two vertical rods (21) are fixedly connected to a support plate (22). A lead screw (23) is arranged in the middle of the two vertical rods (21). The upper and lower ends of the lead screw (23) are rotatably connected to the support plate (22) and the operating table (1) respectively. The lead screw (23) is threadedly connected to the lifting plate (5). Both vertical rods (21) are slidably connected to the lifting plate (5). A stepper motor (24) for driving the lead screw (23) is fixedly connected to the support plate (22).

4. The X-ray tube filament shaping device according to claim 1, characterized in that, The lower end of the operating table (1) is fixedly connected to four support legs (25) arranged in a rectangular array.

5. The X-ray tube filament shaping device according to claim 1, characterized in that, A handwheel (26) is coaxially fixedly connected to the upper end of the screw (17).

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