A combined fixture for milling ultra-long thin-walled zirconium tubes perpendicular to each other

Abstract

The invention belongs to a nuclear fuel element machine manufacturing device and particularly relates to an overlong thin-wall zirconium pipe mutually vertical hole class milling combination jig which comprises a milling machine operating platform. One end of the milling machine operating platform is connected with a front scale division locating jig sleeve. The other end of the milling machine operating platform is connected with a rear scale division locating jig sleeve. The front scale division locating jig sleeve and the rear scale division locating jig sleeve are respectively arranged on a support. A front bracket is arranged on the front scale division locating jig sleeve. A rear bracket is arranged on the rear scale division locating jig sleeve. A clamping device and a locating device are arranged on the milling machine operating platform. The overlong thin-wall zirconium pipe mutually vertical hole class milling combination jig has the advantages that a locating mode of a workpiece is changed, namely a trial cut mode is replaced by an adjustment mode, meanwhile, orientation of the peripheral direction of the workpiece is skillfully integrated with location of the length direction of the workpiece, and accumulation location errors and manual operation errors are effectively avoided.

Description

technical field [0001] The invention belongs to a nuclear fuel element mechanical manufacturing device, in particular to a milling combined fixture for superlong thin-walled zirconium tubes perpendicular to each other. Background technique [0002] At present, the processing of the existing ultra-long thin-walled zirconium tube hole system is carried out on an ordinary milling machine with a support device. The whole process system includes an input support device, an ordinary milling machine, milling cutters, positioning components (positioning baffles, squares) , output support device and other parts (see the basic composition figure 1 ), each part is independent of each other, the input and output support device undertakes the input, output and support functions of the workpiece; the milling machine and milling tool undertakes the processing function of the workpiece, and the positioning element undertakes the positioning and orientation of the workpiece length and circum...

AI Technical Summary

Problems solved by technology

[0006] 3) The workpiece is oriented with a square in the circumferential direction. Since the effective contact length between the right-angled side of the square and the orifice is small, it is easy to produce orientation errors in the circumferential direction. With the accumulation of errors, the circumferential position between the hole systems is difficult to guarantee;

[0007] 4) Due to the trial cutting method, it is necessary to set the knife multiple times for each finished product to determine the position of the knife and the stopper, resulting in a large waste of materials and low production efficiency;

[0008] 5) The operation is cumbersome: it is necessary to use a square for orientation, but also to constantly adjust the position of the stopper in the length direction, the labor intensity of the workers is high, and it is easy to cause operational errors

Images