Tool clamp for assembling interception-free grid-controlled electron gun, and grid aligning method
A technology of grid-controlled electron guns and tooling fixtures, which is applied in manufacturing tools, workpiece clamping devices, and electrode assembly manufacturing, and can solve complex alignment procedures, large interception of electron beams by control grids, and assembly accuracy of grid-controlled electron guns without interception Not advanced question
Active Publication Date: 2014-11-19
INST OF ELECTRONICS CHINESE ACAD OF SCI
View PDF2 Cites 4 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0013] However, in the process of realizing the present invention, the applicant found that during the assembly process of the above-mentioned non-intercepting grid-controlled electron gun, the grid wire alignment process of the control grid and the shadow grid is complicated and the precision is low, resulting in poor assembly accuracy of the non-interception grid-controlled electron gun. High, the interception of the electron beam by the control grid is very large
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0039] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that, in the drawings or descriptions of the specification, similar or identical parts all use the same figure numbers. Implementations not shown or described in the accompanying drawings are forms known to those of ordinary skill in the art. Additionally, while illustrations of parameters including particular values may be provided herein, it should be understood that the parameters need not be exactly equal to the corresponding values, but rather may approximate the corresponding values within acceptable error margins or design constraints. The directional terms mentioned in the embodiments, such as "upper", "lower", "front", "rear", "left", "right", etc., are only referring to the directions of the...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a tool clamp for assembling an interception-free grid-controlled electron gun, and a grid aligning method. The tool clamp comprises a positioning cover and N positioning screws. The positioning cover is of a circular cover structure, the middle position of the positioning cover axially goes downwards to form a hollow cylinder, and an intermediate through hole of the hollow cylinder is taken as an observation window; and on the positioning cover, N threaded holes are formed along an axial direction between the hollow cylinder and a sector through hole, the N positioning screws respectively pass through the corresponding threaded holes to extend into N positioning circular holes around the cylindrical structure of a grid head, and the positioning cover axially forms M welding through holes in a circumferential direction. By using the tool clamp and the method provided by the invention, a control grid and a shadow grid can be aligned efficiently, the parallelism and concentricity between the upper surface of the control grid and the upper surface of a cathode can be adjusted, such that structural parameters between key components such as the cathode, the shadow grid, the control grid and the like can be guaranteed.
Description
technical field [0001] The invention relates to the field of electric vacuum technology in the electronics industry, in particular to a fixture and a grid alignment method for assembling a grid-controlled electron gun without interception. Background technique [0002] Grid-controlled traveling wave tubes are widely used in radar transmitters due to their stable operation, low adjustment voltage, wide frequency band, high power, relatively simple ventilation and heat dissipation structure design, small size, and light weight. Installing a control grid between the cathode and the anode constitutes a grid-controlled electron gun, and this method of controlling the electron injection is called grid control. In this case, cathode electron emission is turned off by applying a negative DC potential across the control grid, or controlled by applying a positive pulse modulation signal. Because the distance between the control grid and the cathode is very close, the electron beam ca...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H01J9/18B25B11/02
Inventor 易红霞肖刘尚新文曹林林陈之亮李延威袁广江王莉
Owner INST OF ELECTRONICS CHINESE ACAD OF SCI