Combined cutting tool for processing finned tube

Abstract

The invention discloses a combined cutting tool for processing a finned tube. The combined cutting tool comprises a spindle (8), a transition blade (1), a design-finalized blade (3), a transition gasket (2) clamped in the middle of the transition blade, a design-finalized gasket (5) clamped in the design-finalized blade, a positioning gasket (4) clamped between the transition blade and the design-finalized blade, a gasket (6) and a nut (7), wherein the transition blade (1) and the design-finalized blade (3) are fixedly sleeved on the spindle (8), and the gasket (6) and the nut (7) are used for locking and fixing the blades. The combined cutting tool is characterized in that the transition blade (1) is kept to be invariant, the thickness of the design-finalized blade (3) is larger than that of the transition blade (1), the thickness of a fin is reduced through combining different cutting tools and gaskets, and accordingly the purpose of reducing the weight per unit length of the fin is achieved. The combined cutting tool for processing the finned tube has the advantages that the fin thickness is reduced, the weight per unit length of the fin reduced, and the cost is saved; the fin height and the fin shape before the fin design is finalized are ensured; the stability in the processing process is high; the die replacement time is reduced, and the work efficiency is improved; the gaskets can be used repeatedly; a cutting tool combining and arranging mode is simple, the cutting tool cost is low, and the blade using time is long.

Description

technical field [0001] The invention belongs to the field of mechanical processing, in particular to an improvement of a tool combination for processing finned tubes. Background technique [0002] Heat transfer problems are encountered in many areas of refrigeration and air-conditioning technology and energy technology, where tube-bundle heat exchangers are often used for heat transfer. The key component in the tube bundle heat exchanger, the heat exchange tube, is the core that determines its processing cost and heat exchange efficiency. There are various forms of heat exchange tubes, but finned tubes are currently the most common application. [0003] Finned tubes have been widely used in refrigeration, chemical industry, metallurgy and many other industries as heat exchange and heat dissipation components. The finned tube mainly improves the heat exchange efficiency by increasing the heat conduction area, and the current finned tube is usually made into an overall spira...

AI Technical Summary

Problems solved by technology

The disadvantages are: higher tool cost, higher weight per unit length of finned tubes, and relatively low fin height

The disadvantage is that the stability during processing is poor, especially if you want to thin the fins only by thinning the gasket, but due to the metal fluidity and complex mechanics of metal processing, if you blindly thin the gasket There will be unstable phenomena such as fin thinning but low fin height or fin rot

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