Orthopedic clamp for microwave tube grid and orthopedic method thereof

Abstract

The invention discloses an orthopedic clamp for a microwave tube grid and an orthopedic method thereof. The orthopedic clamp comprises a base and a pressure plate positioned above the base; a male die is provided with a spherical surface and matched with the base through the spherical surface, and the surface of the male die contacted with the base is a smooth spherical surface; the pressure plate is provided with a hollow part matched with the spherical surface; one end, opposite to the spherical surface, of the male die, is matched with a pressure block; and the base and the pressure plate are provided with coaxial positioning pin holes and positioned and fixed through the positioning pin holes. The orthopedic clamp with the structure and the orthopedic method thereof are characterized in that the molded grid is arranged on the grid orthopedic clamp and orthopedic heat treatment is performed in a hydrogen furnace so as to eliminate internal stress generated during pressing and molding the grid, size the grid according to the designed curved surface radius, eliminate resilience during molding the grid, make the curved surface radius of the orthopedic annealed grid meet the designrequirement and ensure the quality of the grid.

Description

Technical field [0001] The invention relates to the technical field of microwave tube manufacturing, in particular to an orthopedic clamp for a microwave tube grid and an orthopedic method thereof. Background technique [0002] An important part of the grid-controlled electron gun in the microwave tube is the grid, and the spherical radius of the grid has a great influence on the performance of the grid. The manufacturing process of the grid generally has the following two methods: One is to first stamp the molybdenum sheet into a curved surface with a certain radius of curvature, and then use the EDM process to hollow out the curved molybdenum sheet into the required structure, but this The precision of the grid processed by the method is poor, and it is rarely used. Second, the planar grid is processed by photolithography, and then the planar grid is stamped and formed by a mold to obtain the required spherical grid. However, this processing method As a result, the spherical r...

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Problems solved by technology

There are generally two ways to manufacture the grid: first, the molybdenum sheet is punched into a curved surface with a certain radius of curvature, and then the arc-shaped molybdenum sheet is hollowed out into the required structure by EDM. The precision of the grid processed by this method is poor, and it is rarely used; the second is to use the method of photolithography to process the planar grid, and then use the mold to stamp the planar grid to obtain the required spherical grid, but this processing method As a result, the spherical radius of the grid cannot be controlled due to the rebound of the grid during stamping and forming, which directly affects the quality of the grid-controlled electron gun, thereby affecting the performance of the grid-controlled microwave tube.

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