Milling method and indexing clamp for cooling grooves on inner wall of large-diameter water-cooled jacket

Abstract

The invention provides a milling method and indexing clamp for cooling grooves on the inner wall of a large-diameter water-cooled jacket. The indexing clamp comprises a driving roller carrier body and a driven roller carrier body, and the two roller carrier bodies are symmetrically mounted according to the diameter of a large-diameter water-cooled jacket workpiece so as to support and clamp the workpiece; and the roller frame bodies comprise frame bodies, pressing bolts, connecting bolts, tensioning rods, bearing upper covers, bearing end covers, bearings, rollers, pointers, cushion blocks, fixing bolts and positioning bolts. A common three-axis vertical milling machine can be used for cooperating with the indexing clamp to machine the cooling grooves on the inner wall of the large-diameter water-cooled jacket, the indexing clamp can stably clamp rotary workpieces of different specifications and can drive the workpieces to rotate in the machining process, a Y-axis rotation freedom degree is increased, the pointers on the clamp are aligned with workpiece scale marks, the machining precision can be guaranteed, and the manufacturing cost can be reduced.

Description

technical field [0001] The invention belongs to the technical field of mechanical processing and manufacturing, and in particular relates to a method for milling a cooling groove on the inner wall of a large-diameter water-cooling jacket and an indexing fixture. Background technique [0002] The water cooling jacket is the core component of the strip production line in the metallurgical industry, and the blank is imported material, which is expensive. The copper water cooling jacket structure used in heavy cooling equipment in the metallurgical industry such as figure 1 As shown, the outer diameter is 2000mm, the inner diameter is 1880mm, and 240 cooling grooves are evenly distributed on the inner wall. The allowable error is ±0.3°. Due to the large outer diameter of the water-cooling jacket, the large number of inner grooves, and the high indexing accuracy requirements, a five-axis gantry machining center is usually used for inner groove processing. High efficiency and h...

AI Technical Summary

Problems solved by technology

[0004] The present invention proposes a milling method and indexing fixture for the cooling groove of the inner wall of the large-diameter water-cooling jacket to solve the technical problem that the cooling groove of the inner wall of the large-diameter water-cooling jacket cannot be stably clamped and accurately indexed when it is processed by an ordinary three-axis vertical milling machine

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