Directional pipe square frame milling device

Abstract

The invention discloses a directional pipe square frame milling device. The directional pipe square frame milling device comprises two self-centering mechanisms, a sliding seat, two clamp assemblies,two or more centering devices, a feeding mechanism, two axial coarse positioning plates and two driven tool holders, the two self-centering mechanisms are symmetrically installed at the two ends of abase and used for positioning and tensioning a directional pipe from the two ends, the sliding seat is arranged on a position, between the two self-centering mechanisms, of the base and extends alongthe length direction of the base, the two clamp assemblies comprise sliding plates capable of transversely moving, cushion blocks are installed on the sliding plates, inclined blocks capable of ascending and descending along with lifting mechanisms are installed in the cushion blocks, square grooves are formed in the middles of the upper ends of the inclined blocks, the two side ends of each cushion block are each provided with a clamping jaw mechanism capable of clamping / loosening a square frame part on the directional pipe along with ascending / descending of a clamping oil cylinder, the two or more centering devices are separately arranged on the base and / or the sliding seat, the feeding mechanism is arranged on the position, between the two clamp assemblies, of the sliding seat, and thetwo axial coarse positioning plates are arranged on the outer side of the base side by side. The workpiece machining quality is improved, and the manufacturing period of the directional pipe is shortened.

Description

technical field [0001] The invention belongs to the technical field of directional tube production and processing, and in particular relates to a directional tube milling frame device. Background technique [0002] The directional tube is a key part in the 122mm rocket launcher, and the parallelism between the tubes is an important performance index in the 122mm rocket launcher. The directional tube frame plays the role of positioning and support on the launcher, and its processing quality directly affects the parallelism between the directional tubes. The order quantity of 122mm rocket launcher is large, and the improvement of its processing quality and processing efficiency is of great significance to the production of rocket launcher. [0003] There are two main types of frame spacing for the 122mm rocket launcher directional tube: 1777mm and 1897mm. [0004] In the past and at present, the directional tube frame with a frame spacing of 1777mm is processed on a special ...

AI Technical Summary

Problems solved by technology

The positioning and clamping device is directly fixed on three independent bases of the milling frame machine with bolts, and cannot be adjusted after the position is determined.

The positioning and clamping device is used in conjunction with a special machine. The processing of the oriented pipe requires manual participation in positioning and clamping. The positioning is not accurate, and the pass rate of one-time inspection is less than 60%, and it cannot be used universally.

During processing, it is necessary to align, position and clamp according to the marking line, which requires high skill level of workers and is difficult to process. The passing rate of one-time inspection is less than 40%. Before and after processing, there are 2 boxes and 8 faces, and each process requires 2 workers. Cooperating with turning the workpiece three times, the average working time to complete the frame processing is about 252min / piece, the processing efficiency is low, and the labor intensity of the workers is high

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