CN109599314B - Tooling and cathode welding process of ray tube - Google Patents
Tooling and cathode welding process of ray tube Download PDFInfo
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- CN109599314B CN109599314B CN201811599164.5A CN201811599164A CN109599314B CN 109599314 B CN109599314 B CN 109599314B CN 201811599164 A CN201811599164 A CN 201811599164A CN 109599314 B CN109599314 B CN 109599314B
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- base
- cathode
- positioning
- head assembly
- upper cover
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/02—Manufacture of electrodes or electrode systems
- H01J9/18—Assembling together the component parts of electrode systems
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Resistance Welding (AREA)
- Electrodes For Cathode-Ray Tubes (AREA)
Abstract
The invention discloses a tool, which comprises a base and a bracket; the upper end of the base is provided with an annular plate, the bracket is arranged at the upper end of the base, the base is provided with a positioning rod, and the bracket comprises a supporting rod connected with the base and a claw or a lantern ring connected with the supporting rod; the bracket is detachably connected with the base; the base is provided with a positioning concave part; the clamping device also comprises a pressing piece for clamping, and the pressing piece is connected with the base through a screw. The whole tool is simple, the operation is convenient, the assembly process is simple, the positioning surface follows the irregular shape, the fool-proof positioning function is realized, and the positioning accuracy is good. All parts are clamped once in the whole process, are welded in sections, are accurate in positioning and are fast and reliable in welding; the tool is placed on the automatic rotary welding table, so that automatic welding can be realized, special expertise is not needed, and reliability and stability are greatly improved compared with manual operation.
Description
Technical Field
The invention relates to a tool, in particular to a tool applied to welding of a cathode mechanism of a ray tube.
Background
The X-ray tube cathode mechanism comprises an upper cover, a shell, a core column and a cathode head component which are sequentially connected, wherein the upper cover is provided with a through hole, and the through hole is arranged at the eccentric position of the upper cover. Therefore, the housing, the stem and the cathode head assembly are integrally provided at an eccentric position of the upper cover. The axes of the shell and the core column are overlapped with the axis of the through hole.
The pole spacing between the cathode core column, the cathode head component and the anode target disk of the cathode part of the X-ray tube is extremely important, but the cathode core column and the target disk are not directly positioned, and the assembly precision of the cathode core column and the upper cover and the position precision of the target disk and the upper cover are relied on for ensuring. Wherein, the cathode stem of the X-ray tube is arranged at the eccentric position of the upper cover, and the assembly welding process of the stem and the upper cover is complex and has strict requirements.
At present, the products are assembled in steps, generally by step-by-step assembly and step-by-step welding. Each step is to select different simple tools and locate the tool through the simple tools. Therefore, the assembly of the stem and the upper cover is prone to errors.
Disclosure of Invention
In order to overcome the defects in the prior art and solve the problem of large assembly error of the core column and the upper cover, the invention adopts the following technical scheme:
A tool comprises a base and a bracket for clamping, wherein the bracket is detachably connected with the base; the upper end of base is provided with the annular plate, is provided with the locating lever on the base, and the support sets up in the base upper end.
According to another embodiment of the invention, further the bracket comprises a support rod connected with the base and a claw or a collar connected with the support rod.
According to another specific embodiment of the invention, the device further comprises a pressing piece for clamping, and the pressing piece is connected with the base through a screw; the upper end of the base is provided with a first chute; when the pressing piece moves along the first chute, the pressing piece is far away from or approaches to the clamping position; the base is provided with a second chute communicated with the lower end of the base and the first chute, and the screw moves along the second chute when the pressing sheet moves along the first chute; the head of the screw is arranged outside the base; the first chute is used for controlling the directional sliding of the pressing sheet and is also used for tightening or loosening the clamping of the pressing sheet.
According to another specific embodiment of the invention, further, a reference structure is arranged at the lower end of the base, and the reference structure is a reference hole or a reference shaft; the lower end of the base is provided with a notch; the length direction of the notch is along the radial direction of the virtual circle by taking the reference structure as the axis, and the opening section of the notch is outwards along the radial direction of the virtual circle.
A cathode welding process for a ray tube, comprising the steps of: step a, assembling an upper bracket on a tooling base, positioning and clamping a cathode head assembly by the base, connecting the lower end of the cathode head assembly with a positioning concave part of the base, sleeving a bracket positioning and clamping core column and a core column part on the cathode head assembly, and welding the core column and the cathode head assembly;
B, disassembling the bracket, loading the base into an upper cover, penetrating a positioning hole of the upper cover by a positioning rod, penetrating a through hole of the upper cover by a core column, loading the upper cover into a shell, sleeving the upper end of the core column by the shell, and connecting the shell with the through hole of the upper cover;
And c, welding the shell and the stem, and welding the shell and the upper cover.
According to another embodiment of the invention, further, the bracket comprises a claw; in the step a, the clamping jaw is connected with the core column, the lower end of the cathode head component is connected with the positioning concave part of the base, and the cathode head component and the core column are positioned and assembled in height.
According to another embodiment of the present invention, in the step b, the upper cover is clamped on the annular plate at the upper end of the base; and in height, the upper cover, the shell, the core column and the cathode head assembly are positioned and assembled.
According to another embodiment of the present invention, in the step a, the pressing piece slides along the radial direction to the cathode head assembly, and then the pressing piece is pressed against the cathode head assembly, and the screw is tightened on the lower end of the base.
According to another embodiment of the invention, further comprising step d, loosening the screw, and removing the tab from the cathode head assembly, wherein the cathode structure can be removed from the tool.
According to another specific embodiment of the invention, further, a reference structure is arranged at the lower end of the base, and the reference structure is a reference hole or a reference shaft; in the step b, the stem, the through hole and the reference structure are along the same axis; after step b, the base is assembled to the welding table, and the axes of the stem, the through hole and the reference structure are all along the rotation axis of the welding table.
The tool adopted by the invention has the following beneficial effects: the whole fixture is simple, the operation is convenient, the assembly process is simple, the positioning surface follows the irregular shape, the fool-proof positioning function is realized, and the positioning accuracy is good; all parts are clamped once in the whole process, are welded in sections, are accurate in positioning and are fast and reliable in welding; the tool is placed on the automatic rotary welding table, so that automatic welding can be realized, special expertise is not needed, and reliability and stability are greatly improved compared with manual operation.
Drawings
FIG. 1 is a schematic view of a first view angle structure of the tooling of the present invention;
FIG. 2 is a schematic view of a second view angle structure of the tooling of the present invention;
FIG. 3 is an exploded view of the tooling of the present invention;
FIG. 4 is a schematic view of the tooling of the present invention shown disassembled from the cathode mechanism;
FIG. 5 is a schematic view of the structure of the cathode head assembly and the stem of the present invention when the assembly is clamped in a fixture;
FIG. 6 is a cross-sectional view of the cathode head assembly and stem of the present invention when clamped in a tooling;
FIG. 7 is a schematic view of the cathode mechanism of the present invention;
Fig. 8 is an exploded view of the cathode mechanism of the present invention.
Detailed Description
The following describes the embodiments of the present invention in further detail with reference to the drawings.
As shown in fig. 1 to 6, a fixture comprises a base 11 and a bracket 12 for clamping; the upper end of the base 11 is provided with an annular plate 11a; preferably, the base 11 is integrally formed with the annular plate 11 a. The annular plate 11a may be provided with a notch. The annular plate 11a is used for positioning and clamping the upper cover 24, and the lower end of the upper cover 24 is embedded on the annular opening of the annular plate 11a; the support 12 is used to position the clamping stem 22. The core column 22 and the upper cover 24 are positioned and clamped, and the two are positioned and assembled in the height direction and the horizontal direction, so that the assembly precision of the two is ensured.
As shown in fig. 1 and fig. 3 to fig. 6, the bracket 12 includes a supporting rod 12a connected to the base 11, and a claw 12b or a collar connected to the supporting rod 12a, where the supporting rod 12a is detachably connected to the base 11, and the supporting rod 12a and the base 11 may be specifically rib-connected, fastened, or the like. The stem 22 is clamped by inserting the jaws 12b (or collars) from top to bottom. A claw 12b or collar detachably connected to the pole 12 a; the claw 12b or the lantern ring is buckled at the upper end of the supporting rod 12a and is locked by a nut, and the nut is connected with the upper end of the supporting rod 12a and abuts against the claw 12b or the lantern ring.
As shown in fig. 4, 7 and 8, the through hole is provided at an eccentric position of the upper cover 24, and the stem 22 passes through the through hole and the stem 22 is provided at an eccentric position of the upper cover 24. The annular plate 11a is provided with a notch for positioning the upper cover 24, and/or the base 11 is provided with a positioning rod 13, and the positioning rod 13 is connected with a positioning hole of the upper cover 24 in a penetrating way. The upper cover 24 is clamped by the positioning means, the stem 22 is clamped by the positioning means of the holder 12, and the stem 22 is positioned and fitted in an eccentric position of the upper cover 24.
As shown in fig. 1,3 to 6, a positioning concave portion 11d is arranged on the base 11, and the positioning concave portion 11d is used for positioning and clamping the cathode head assembly 21; the cathode head assembly 21 includes a disc body and a protrusion disposed at the lower end of the disc body, and the disc body and the protrusion are positioned and clamped in the positioning recess 11 d. Specifically, the positioning concave portion 11d is a countersunk hole, and a countersunk portion of the countersunk hole is used for clamping the disc body.
As shown in fig. 1,3 to 6, the cathode structure further comprises a pressing piece 14 for clamping, the pressing piece 14 is connected with the base 11 through a screw, and the pressing piece 14 is used for clamping the cathode structure 2. Specifically, the pressing piece 14 is used for clamping the cathode head assembly 21; more specifically, the cathode head assembly 21 includes a disk body and the press plate 14 is used to clamp the disk body.
As shown in fig. 3, a first chute 11b is provided at the upper end of the base 11; as the press piece 14 moves along the first chute 11b, the press piece 14 moves away from or toward the clamping position (i.e., away from or toward the disc); the base 11 is provided with a second chute 11c communicated with the lower end of the base 11 and the first chute 11b, and when the pressing piece 14 moves along the first chute 11b, the screw moves along the second chute 11 c; the head of the screw is arranged outside the base 11; the first chute 11b is used for controlling the directional sliding of the pressing piece 14 and also is used for tightening or loosening the clamping of the pressing piece 14. The clamping process of the cathode head assembly 21 comprises the following steps: the cathode head assembly 21 is installed in the positioning concave part 11d, and the disc body is positioned at the countersunk head part of the positioning concave part 11 d; the screw is moved at the lower end of the base 11 to drive the pressing piece 14 to move (the pressing piece 14 is in a loosening state relative to the clamping disc body and is not separated from the screw at the moment), and the pressing piece 14 approaches to the disc body along the first chute 11b (the orientation effect of the first chute 11 b); the presser 14 is moved into position and the screw is tightened at the lower end of the base 11. The upper end of the base 11 is provided with a cathode mechanism 2 and a non-controllable pressing sheet 14. The pressing piece 14 is limited in the first chute 11b, can slide along the first chute 11b in a directional manner, and a screw connected with the pressing piece 14 in a threaded manner can be screwed so that the pressing piece 14 can tightly press against the fixed disc body.
As shown in fig. 2, the lower end of the base 11 is provided with a reference structure 11f, and the reference structure 11f is a reference hole or a reference axis. The lower end of the base 11 is provided with a notch 11g; a virtual circle with the reference structure 11f as an axis, the length direction of the notch 11g being along the radial direction of the virtual circle, the opening section of the notch 11g being outward along the radial direction of the virtual circle; the notches 11g are provided with three. The setting of notch 11g is convenient for frock 1 to connect on the weldment work platform. The welding table is rotatable and even connected with a motor for driving it in rotation. The welding seam of the shell 23 and the upper cover 24, the welding seam of the shell 23 and the stem 22 and the welding seam of the stem 22 and the cathode head assembly 21 are all circular rings, and are along the same central axis; the tool 1 drives the cathode mechanism 2 to rotate, the axes of the core column 22, the through hole and the reference structure 11f are all along the rotating shaft of the welding workbench, and the welding machine is matched with the tool, so that only the workpiece rotates, the welding gun can not rotate, and the welding mark quality of a product is greatly improved.
As shown in fig. 1 to 6, the annular plate 11a is provided with an operation port 11e.
A cathode welding process for a tube comprising steps a to c. Step a, an upper bracket 12 is assembled on a base 11 of the tooling 1, the base 11 is used for positioning and clamping a cathode head assembly 21, the lower end of the cathode head assembly 21 is connected with a positioning concave part 11d of the base 11, the bracket 12 is used for positioning and clamping a core column 22, the core column 22 is partially sleeved on the cathode head assembly 21, and the core column 22 is welded with the cathode head assembly 21. The cathode head assembly 21 is clamped on the base 11, the stem 22 is clamped on the support 12, the cathode head assembly 21 and the stem 22 are assembled in a positioning manner in the height and horizontal directions, and the welding seam between the stem 22 and the cathode head assembly 21 is at the position A shown in fig. 6 and 7.
In step a, the claw 12b is connected with the stem 22, the lower end of the cathode head assembly 21 is connected with the positioning concave part 11d of the base 11, and the cathode head assembly 21 and the stem 22 are positioned and assembled in height. In step a, the press piece 14 slides radially toward the cathode head assembly 21, and then the press piece 14 presses the cathode head assembly 21, tightening the screw at the lower end of the base 11.
And b, disassembling the bracket 12, loading the base 11 into the upper cover 24, penetrating the positioning hole of the upper cover 24 by the positioning rod 13, penetrating the through hole of the upper cover 24 by the core column 22, loading the upper cover 24 into the shell 23, sleeving the upper end of the core column 22 by the shell 23, and connecting the shell 23 with the through hole of the upper cover 24. In the step b, the upper cover 24 is clamped on the annular plate 11a at the upper end of the base 11; and in height, the upper cover 24, the shell 23, the stem 22 and the cathode head are assembled in a positioning way.
Step c, the shell 23 is welded with the stem 22, and the shell 23 is welded with the upper cover 24. The weld position of the case 23 and the stem 22 is in the B position as shown in fig. 4 and 7, and the weld position of the case 23 and the upper cover 24 is in the C position as shown in fig. 7.
In step d, the screws are loosened, the pressing piece 14 is away from the cathode head assembly 21, and the cathode mechanism 2 can be taken out from the tool 1.
The lower end of the base 11 is provided with a reference structure 11f, and the reference structure 11f is a reference hole or a reference shaft; in step b, the stem 22, the through hole and the reference structure 11f are along the same axis; after step b, the base 11 is assembled to the soldering station, the axes of the stem 22, the through hole and the reference structure 11f being along the axis of rotation of the soldering station.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
The above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and any modifications or equivalent substitutions without departing from the spirit and scope of the present invention should be covered in the scope of the technical solution of the present invention.
Claims (6)
1. A cathode welding process for a ray tube, comprising the steps of: step a, an upper bracket (12) is assembled on a base (11) of a tool (1), the base (11) is used for positioning and clamping a cathode head assembly (21), the lower end of the cathode head assembly (21) is connected with a positioning concave part (11 d) of the base (11), the bracket (12) is used for positioning and clamping a core column (22), part of the core column (22) is sleeved on the cathode head assembly (21), and the core column (22) is welded with the cathode head assembly (21);
Step b, disassembling the bracket (12), loading the base (11) into the upper cover (24), connecting the positioning rod (13) with the positioning hole of the upper cover (24) in a penetrating way, and connecting the core column (22) with the through hole of the upper cover (24), loading the upper cover (24) into the shell (23), connecting the shell (23) with the upper end of the core column (22) in a sleeving way, and connecting the shell (23) with the through hole of the upper cover (24);
and c, welding the shell (23) and the stem (22), and welding the shell (23) and the upper cover (24).
2. A tube cathode welding process according to claim 1, wherein said support (12) comprises jaws (12 b); in the step a, the clamping jaw (12 b) is connected with the stem (22), the lower end of the cathode head assembly (21) is connected with the positioning concave part (11 d) of the base (11), and the cathode head assembly (21) and the stem (22) are assembled in a positioning way in height.
3. A cathode welding process for a tube according to claim 1, wherein in the step b, the upper cover (24) is clamped on the annular plate (11 a) at the upper end of the base (11); and in height, the upper cover (24), the shell (23), the core column (22) and the cathode head assembly (21) are positioned and assembled.
4. A tube cathode welding process according to claim 1, wherein in step a, the press sheet (14) slides radially towards the cathode head assembly (21), and then the press sheet (14) presses the cathode head assembly (21) and screws onto the lower end of the base (11).
5. A tube cathode welding process according to any one of claims 1 to 4, further comprising the step d of loosening the screw and moving the press piece (14) away from the cathode head assembly (21), the cathode structure (2) being removable from the tool (1).
6. A tube cathode welding process as claimed in any one of claims 1 to 4, wherein the lower end of the base (11) is provided with a reference structure (11 f), the reference structure (11 f) being a reference hole or a reference axis; in step b, the stem (22), the through hole and the reference structure (11 f) are along the same axis; after step b, the base (11) is assembled to the welding table, the axes of the stem (22), the through hole and the reference structure (11 f) being along the rotation axis of the welding table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811599164.5A CN109599314B (en) | 2018-12-26 | 2018-12-26 | Tooling and cathode welding process of ray tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811599164.5A CN109599314B (en) | 2018-12-26 | 2018-12-26 | Tooling and cathode welding process of ray tube |
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| Publication Number | Publication Date |
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| CN109599314A CN109599314A (en) | 2019-04-09 |
| CN109599314B true CN109599314B (en) | 2024-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811599164.5A Active CN109599314B (en) | 2018-12-26 | 2018-12-26 | Tooling and cathode welding process of ray tube |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115945968B (en) * | 2023-01-09 | 2023-11-10 | 苏州群志机械设备有限公司 | Double-head vertical machining center |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102856142A (en) * | 2012-09-27 | 2013-01-02 | 安徽华东光电技术研究所 | Assembling tool for grid-control electron gun and assembling method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3337942A (en) * | 1965-08-30 | 1967-08-29 | Sylvania Electric Prod | Assembly jig |
| KR970067453A (en) * | 1996-03-26 | 1997-10-13 | 윤종용 | Assembling device of electron gun |
| CN202668406U (en) * | 2012-05-16 | 2013-01-16 | 安徽华东光电技术研究所 | An assembling fixture used for a cathode and control electrode assembly of an electronic gun |
| CN104157534B (en) * | 2014-08-21 | 2016-07-13 | 中国科学院电子学研究所 | Tooling Fixture and Alignment Method for Non-Interception Grid-Controlled Electron Gun Assembly |
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2018
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102856142A (en) * | 2012-09-27 | 2013-01-02 | 安徽华东光电技术研究所 | Assembling tool for grid-control electron gun and assembling method thereof |
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