Tungsten rod thermoforming device with continuous operation function

Abstract

The invention discloses a tungsten rod thermoforming device with a continuous operation function. The tungsten rod thermoforming device comprises a support shaft, and the upper end of a stop rod is connected to the upper end of an inner cavity of a guide cylinder through a compression spring; the outer end of a brake disc is provided with a slot corresponding to the stop rod circumferentially, andthe middle lower end of the support shaft is provided with a female mould; a bearing plate is arranged between the lower ends of two support plates, and the upper end of the bearing plate is providedwith an electric linear actuator of which the upper end is provided with a male mould matched and connected with the female mould; and each support plate is provided with a controller electrically connected to the electric linear actuator. A conductive block communicates with a conductive disc on an insulating disc for energization, and the conductive disc is not a complete circular ring; thus, asection of the conductive disc is non-conducting, and used for cooling and manual discharge after extrusion forming of tungsten rods; in this way, the tungsten rods are heated as being rotated; the tungsten rods are subjected to extrusion forming during rotation of the rotating cylinder, while some other tungsten rods are heated circularly and continuously; and the efficiency is high.

Description

technical field [0001] The invention relates to a tungsten rod processing, in particular to a tungsten rod thermoforming device with continuous operation function, belonging to the field of tungsten rod thermoforming. Background technique [0002] Tungsten rod is a common workpiece used as lead wire in traveling wave tube. Tungsten rod has extremely high melting point, low vapor pressure, excellent high temperature mechanical properties and special electrical properties. Tungsten is also brittle and not easy to bend and form. The traditional bending forming process is: after the tungsten rod is burned red on the electric furnace, it is removed with tools such as tweezers, and then placed in the bending die for bending. , When bending and forming, the mold also dissipates some heat of the workpiece, resulting in that when the workpiece is bent, the material cannot reach the temperature required for bending, and the requirements for heating and softening bending forming, resul...

AI Technical Summary

Problems solved by technology

[0002] Tungsten rod is a common workpiece used as the lead wire in traveling wave tube. Tungsten rod has extremely high melting point, low vapor pressure, excellent high-temperature mechanical properties and special electrical properties. Tungsten is also brittle and not easy to bend and form. The traditional bending forming process is: put the tungsten rod on the electric furnace and burn it red, take it off with tweezers and other tools, and put it on the bending die for bending. , when bending and forming, the mold also dissipates some heat from the workpiece, resulting in that when the workpiece is bent, the material cannot reach the temperature required for bending, and the requirements of heating and softening bending forming, resulting in a lot of rebound of the bent part of the part, the size The stability and consistency are very poor, and the pass rate of good products is very low, generally 50% or even lower

Therefore, it is necessary to design a precision thermoforming device for molybdenum and tungsten rods that is easy to process, has good dimensional stability and consistency, and has a high pass rate on the basis of existing technologies. There are also precision thermoforming devices for tungsten rods on the market. , such as the patent with the notification number CN202079140 U, ​​but it heats a tungsten rod, and then presses it into shape. In this way, it can only be extruded after the tungsten rod is heated to a certain temperature. It cannot be operated continuously, and the efficiency is relatively low.

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