Trapezoidal combined milling cutter

Abstract

The invention discloses a trapezoidal combined milling cutter. The milling cutter comprises a milling cutter blade, a cutter point, a chip removal hole, a cutter body, a connecting rod, a first butt joint threaded column, an adapter, a first butt joint hole, a second butt joint threaded column, a trapezoidal joint, a connecting hole and a second butt joint hole. The milling cutter has the beneficial effects that the adapter is a cylindrical rod piece, and the first butt joint hole and the second butt joint hole are formed in the upper side and the lower side of the adapter in an up-and-down symmetric mode; and the inward concave depth of the first butt joint hole and the second butt joint hole is 3 cm, and the height of the adapter is 8 cm. The situation that the trapezoidal combined milling cutter cannot be in butt joint with all external motors is avoided, the trapezoid joint is a circular truncated cone-shaped structural member, the trapezoidal joint is screwed and in butt joint with the second butt joint hole through the second butt joint threaded column at the bottom of the trapezoidal joint, the trapezoidal joint is in threaded rotary connection with the adaptor to form a uniform whole, and the situation that the milling cutter cannot be connected fixed when being connected with the external motors is prevented.

Description

technical field [0001] The invention relates to a milling cutter, in particular to a trapezoidal combination milling cutter, which belongs to the technical field of milling cutters. Background technique [0002] Milling cutter refers to a kind of cutting tool whose arc length is greater than 1 / 4 circle. In mold processing, some small workpieces have a draft angle on the processing surface. Ordinary R angle cutters have relatively long blade lengths, and the rigidity of the cutting tool is relatively long. Reduced, the strength and rigidity of the tool cannot meet the requirements, and the service life of the tool is short. In order to strengthen the strength and rigidity of the tool and enhance the service life of the tool, a short-edged strong milling cutter is designed to improve the rigidity and strength and ensure the precision of the mold. , the mold is processed in place at one time. When machining the hole of the workpiece, the hole is generally rough-machined first, ...

AI Technical Summary

Problems solved by technology

[0002] Milling cutter refers to a kind of cutting tool whose arc length is greater than 1 / 4 circle. In mold processing, some small workpieces have a draft angle on the processing surface. Ordinary R angle cutters have relatively long blade lengths, and the rigidity of the cutting tool is relatively long. Reduced, the strength and rigidity of the tool cannot meet the requirements, and the service life of the tool is short. In order to strengthen the strength and rigidity of the tool and enhance the service life of the tool, a short-edged strong milling cutter is designed to improve the rigidity and strength and ensure the precision of the mold. , the mold is processed in place at one time. When machining the hole of the workpiece, the hole is generally rough-machined first, then the hole is finished, and finally the chamfer is performed through the inlet end of the hole. Such a processing method requires the use of Three kinds of tools need to be clamped three times, the clamping time is longer and the efficiency is low; at the same time, after three times of clamping, there will be positioning errors and the machining accuracy will decrease

[0003] Therefore, then need a kind of trapezoidal combined milling cutter to meet the demand on the market at present, although many kinds of trapezoidal combined milling cutters have been produced on the market at present, generally speaking, there are still many common problems, one, The bottom of the existing trapezoidal combined milling cutter is not provided with a tool tip, resulting in the inability to open the gap when grinding some hard components, causing certain troubles. Second, the existing trapezoidal combined milling cutter is not provided with a conversion lever. As a result, the trapezoidal combined milling cutter cannot be docked with all external motors. Third, the top of the existing trapezoidal combined milling cutter is not provided with a circular table butt joint member, resulting in the inability to connect and fasten when the external motor is connected.

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