Tensioning device for helically wound core rod of slender traveling wave tube

Abstract

The invention discloses a slender traveling wave tube spiral wire winding core rod tensioning device which comprises a main body frame, a sliding block, a regulation block, a fixed block, a regulationscrew and a locking screw. A tensioning device clamps the two ends of a core rod wound with a spiral wire on a winding machine to be regulated by screwing the regulation screw and fastened by screwing the locking screw; and by regulating the position and the tensile force of the sliding block, the core rod is tensioned and straightened; the core rod is ensured to be always in a tightening and straightening state after being taken off from a chuck, and setting treatment is performed on the core rod with the spiral wire with the tensioning device together finally; and when the spiral wire aftersetting treatment is taken off from the core rod, a winding screw pitch of the spiral wire cannot bend and deform, so that the screw pitches of the spiral wires are consistent, and the screw pitch accuracy of finished spiral wire products is ensured. The core rod tensioning device has the characteristics of simple structure, convenience in regulation and difficulty in bending deformation and is suitable for clamping the core rods with different lengths.

Description

technical field [0001] The invention relates to a tensioning device, in particular to a core rod tensioning device for helically winding a slender traveling wave tube, which is an auxiliary tool for winding a slender helical wire. Background technique [0002] The helix is ​​one of the key components of the helix TWT. The dimensional accuracy of the helix is ​​very high, and the pitch error is generally within 3 microns. The error directly affects the quality and performance of the helix TWT. For the slender TWT helix, it is generally processed by winding on the core rod. The current practice is to use two self-centering chucks to clamp and tension the two ends of the winding core rod; the two self-centering chucks rotate synchronously with the control motor, and at the same time the pay-off on the equipment The mechanism releases the slender wire, and the wire is close to the core rod through the wire guide mechanism and makes a linear feed motion along the direction of th...

AI Technical Summary

Problems solved by technology

[0003] Invention patent 201210076924.0 discloses a kind of "helical wire setting annealing process"; the deficiency that exists in this helical wire setting annealing process is: during batch setting treatment, the helical wire that has been wound is placed on the annealing fixture together with core rod, after placing There is no tensioning device to tension the core rod during the process

These factors lead to the pitch accuracy of the helix during the shaping process is no longer the pitch accuracy during winding, which will cause the pitch accuracy of the processed helix to change and fail to meet the technical requirements

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