Anti-vibration and efficient worm turning tool and machining method

Abstract

The invention provides an anti-vibration and efficient worm turning tool and a machining method. The worm turning tool comprises a tool bar and a tool bit; the tool bit is inserted in a square hole inthe end of the tool bar and is fastened; the tool bar comprises an elastic tool bar body, two spring rings, a plastic nut and an elastic square sleeve; the two spring rings are installed in an upperopening and a lower opening of the tool bar body; the tool bar body is sleeved with the elastic square sleeve; the tool bar body can rotate in the elastic square sleeve; and the tool bar body and theelastic square sleeve are fastened together through the plastic nut. The problems that when a conventional forming turning tool adopts a high-speed steel W18Cr4V forming turning tool to turn a worm, blades on the two sides are prone to rubbing against the side surface of the workpiece, and even three blades participate in cutting at the same time, so that a process system vibrates during turning,vibration during rough turning causes noise, vibration during finish turning influences the surface roughness, the tooth profile depth of the worm is large, the blank allowance required to be cut is large, only the relatively-low cutting speed can be selected, the production efficiency is low, the lead is large and the problem of tool pricking can appear are solved.

Description

technical field [0001] The invention relates to a vibration-proof and high-efficiency worm turning tool and a processing method, belonging to the technical field of tools and fixtures. Background technique [0002] A worm refers to a gear that has one or several helical teeth and meshes with a worm wheel to form a cross-axis gear pair. The tooth shape of the worm is very similar to the trapezoidal thread, and its indexing surface can be a cylindrical surface, a conical surface or a torus. [0003] Worm turning tool: It is a cutting tool that uses a worm drive. Usually cylindrical worms are formed turning tools. [0004] Tool nose width = 0.697 x modulus - 0.728 x clearance (gap = 0.2 x modulus). [0005] Conventional worm turning tools generally have two worm forming rough turning tools and worm forming fine turning tools, see figure 1 and figure 2 . [0006] Disadvantages of the technique of turning worms with conventional form turning tools: [0007] (1) When turni...

AI Technical Summary

Problems solved by technology

[0007] (1) When turning the worm with high-speed steel W18Cr4V forming turning tools, friction between the blades on both sides and the side of the workpiece is likely to occur, and even three blades participate in cutting at the same time, resulting in vibration of the process system during turning, vibration during rough turning, and noise during fine turning. Vibration affects surface roughness

[0008] (2) When the high-speed steel W18Cr4V forming turning tool is used for rough turning of the worm, due to the deep tooth profile of the worm, there is a lot of blank to be removed, so only a low cutting speed can be selected, the production efficiency is low, and the lead assembly appears "knives" "Phenomenon

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