A special hollow end mill for machining casting wooden molds

Abstract

The invention discloses a shell end milling cutter special for machining and casting a wood pattern. The shell end milling cutter comprises a taper cutter handle, a cutter body, small cutting blades and large cutting blades; the taper cutter handle is located at the rear end of the cutter body, the taper cutter handle and the cutter body are of an integrated structure, a hollow structure allowing high-pressure gas to pass through is formed in the taper cutter handle and the cutter body, a spiral groove is formed in the cutter body, straight-side grooves communicated with the spiral groove are formed in an opening of the spiral groove in the front end of the cutter body, each straight side groove comprises a straight side wall coinciding with the radial axis of the cutter body, a through groove for containing the large cutting blades is formed between the straight side walls of two opposite straight side grooves, and the small cutting blades are arranged in other straight side grooves. The length of the cutter handle and the cutter body is larger than that of a common milling cutter, the milling problem that during wood pattern casting, sizes and certain hole depths are large is solved, the small cutting blades and the large cutting blades are made of wear-resisting high alloy steel materials or polycrystalline diamond, and the service life of the cutter is greatly prolonged.

Description

technical field [0001] The invention relates to a milling cutter for processing casting wooden molds, in particular to a hollow end mill special for processing casting wooden molds, which belongs to the technical field of mechanical processing. Background technique [0002] Traditional wood casting molds are generally made by hand or with the help of electric tools. The accuracy cannot be guaranteed. The error of the large size is at the millimeter level. The shape and position error of the hole and the boss cannot be guaranteed at all. It is impossible to meet the requirements by manual scribing; the relatively low working speed of manual operation tools leads to poor roughness of wooden molds, and the smoothness of the obtained sand molds is naturally poor. At present, high-quality castings have more and more requirements for surface smoothness. High; now there are also special CNC processing equipment to obtain wooden molds through milling technology. The precision level ...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the deficiencies of the existing technology, in order to overcome the shortcomings of rapid temperature rise and inability to process deep cavities when using ordinary milling cutters in the market to mill casting wooden molds, the present invention provides a special hollow end mill for processing casting wooden molds , to provide a special milling cutter that can be cooled, has a long length and a long service life for the CNC machine tool for casting wood mold milling

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