CN203343499U - Single-blade multi-edge drilling and milling tool - Google Patents

Abstract

A single-blade multi-edge drilling and milling tool comprises a tool handle (1) and a tool blade (2). The single-blade multi-edge drilling and milling tool is characterized in that one end of the tool blade is in a step shape with a size smaller than that of the tool handle, a chip groove naturally stretches in a helical type to the top end of a tool body, the helical angle alpha of the chip groove is 20 degrees to 30 degrees, the depth of the chip groove does not exceed the central line of the tool body, the tool blade part is made to be a semi-hollowed-out helical cutting body, and a main cutting blade (3) is arranged on the side edge. When the single-blade multi-edge drilling and milling tool is used for machining wood, acrylic materials, PVC materials, metal materials and the like, cutting efficiency is high, cutting resistance is small, chip removal is smoother, the phenomenon that the tool body changes color will not occur, and the service time of the single-blade multi-edge drilling and milling tool is prolonged.

Description

The polygon brill milling cutter of single-blade

Technical field

The utility model relates to material cutting processing field, especially about milling, cuts the upper polygon multi-functional drill milling cutter of single-blade used of boring.

Background technology

Milling the single-blade milling cutter that cuts use on various types of materials, is a kind of economical and practical, and adaptable instrument all takes much count of raising and the innovation to the single-blade milling cutter technology both at home and abroad.Where are the characteristics of common single-blade milling cutter? observe cutting process from incision principle, it and fluting, mill, the maximum difference of cutting cutting method such as cut, be that it is semiclosed cutting, multiaspect is obstructed, do not there is drilling function, common single-blade milling cutter spiral angle is larger, generally all be greater than 30 °, spiral is apart from less, blade and handle of a knife, the processing more common (0.1mm) that blade and rear quarter carry on the back, single-blade milling cutter will mill and cut material, also to from the sword groove of milling cutter, eject milling bits, therefore, chip removal, heat passes loose, the cast of assisted machining liquid is all more difficult.Common single-blade milling cutter divides again the carpenter with single-blade milling cutter and metal single-blade milling cutter simultaneously, and cut material is had to certain requirement, and by height on earth, cutting edge has sharp blunt to sword the cutting speed of blade each point, and duty changes violent.Due to common single-blade milling cutter in structure and mill while cutting occurred row with the resistance, be subject to again to be milled the limitation on the material cut.These characteristics have determined that there is following shortcoming in common single-blade milling cutter: 1, between blade and handle of a knife, change little, in the same size, also cry linear cylindrical shape, spiral angle is greater than 30 °, the spiral distance is less than 16mm, thereby mill bits outflow direction difference, and mill pining down of bits and milling cutter, processed raw material, be unfavorable for milling the discharge of bits.2, the top center of blade does not have the basil, and tool does not have drilling function on material.3, carry on the back drop little (0.1mm) at blade and rear quarter, make cutting edge not sharp, mill and cut inefficiency, strengthen the friction of blade and back and material, be difficult for the heat radiation of cutter, easily make cutter hub variable color and cracking of cutter, reduce the service life of common single-blade milling cutter.

Summary of the invention

For above deficiency, the purpose of this utility model is to provide a kind of single-blade polygon brill milling cutter, reconditioning blade, helical angle, spiral distance, the rear quarter back of the body and point of a knife, thereby guarantee the polygon brill milling cutter of single-blade brisk mill to cut off cut and unobstructed chip removal and drilling function.

The technical solution of the utility model is achieved in the following ways: the polygon brill milling cutter of single-blade, comprise handle of a knife and blade, it is characterized in that: described blade one end is stepped with the size that is less than handle of a knife, spiral form extends a chip area naturally to the cutter hub top, the chip area pitch angle alpha will is 20 °--30 °, the chip area degree of depth is no more than the cutter hub center line, allows blade part be divided into half hollow out helical form cutting body, and side is provided with main cutting edge.

The back of described cutting edge has the 6-10 bar thin spiral consistent with the chip area spiral, and the thin spiral of back is than the monolateral little 0.15mm-0.3mm of blade diameter.

Described chip area pitch is 16mm-20mm, conveniently mills chip removal while cutting.

The utility model structure, back adopts thin helical design, makes the better and heat radiation of the toughness of cutter, is provided with acute angle outside centered by cutter hub on the blade top and with cutting edge, make it there is the drilling function the same with drill bit on material, cut in order to all can hole to mill in the arbitrfary point of material.When converted timber, acryl, PVC, metal material etc., cutting efficiency is good, Cutting Drag is little, chip removal is more smooth and easy, the cutter hub metachromatism do not occur, has increased the service time that single-blade multi-functional (polygon) bores milling cutter.

The accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Fig. 2 is Fig. 1 cutting tip schematic diagram.

Fig. 3 is blade top and back size schematic diagram.

The specific embodiment

By Fig. 1, being known, is structural representation of the present utility model.The polygon brill milling cutter of single-blade, comprise handle of a knife 1 and blade 2, and milling cutter is stepped, the knife edge part diameter is less than shank portion, a main cutting edge 3, and blade 2 tops are provided with acute angle outside centered by cutter hub and with cutting edge,, 20 ° of-30 ° of chip areas 4 of helical angle, the thin spiral back of 6--8 bar.

By Fig. 2, it is Fig. 1 cutting tip schematic diagram.Article one, main cutting edge 3,, 20 ° of-30 ° of chip areas 4 of helical angle, main cutting edge 3 helical angles and chip area 4 helical angle d are 20 °-30 °, chip area pitch is 16mm-20mm, the not super cutter hub center line of the chip area degree of depth, such cutter hub is conducive to the raising of cutting efficiency, contributes to chip removal, the cutter hub metachromatism do not occur.

By Fig. 3, the utility model blade top and back size schematic diagram, blade 2 tops are provided with acute angle outside centered by cutter hub and with cutting edge, the back of cutting edge has the 6--10 bar thin spiral consistent with chip area 4 spirals, the thin spiral of back is than the monolateral little 0.15mm-0.3mm of blade diameter, such cutter head makes it to become has have drilling function the same as drill bit, the thin spiral of back is monolateral less than blade diameter, the friction of cutter hub and workpiece will be reduced, increased the thermal conductivity of milling cutter and air-cooled, that milling cutter is not easy to change, send out Cauterize, increased the pliability of milling cutter simultaneously, reduced the risk of breakage of milling cutter, increased the polygon brill milling cutter of single-blade in use between.

Claims (3)

1. the polygon brill milling cutter of single-blade, comprise handle of a knife (1) and blade (2), it is characterized in that: described blade one end is notch cuttype with the size that is less than handle of a knife, spiral form extends a chip area naturally to the cutter hub top, the chip area pitch angle alpha will is 20 °-30 °, the not super cutter hub center line of the chip area degree of depth, allow blade part be divided into half hollow out helical form cutting body, and side is provided with main cutting edge (3).

2. the polygon brill milling cutter of single-blade according to claim 1, it is characterized in that: the back of described main cutting edge (3) has the 6-10 bar thin spiral consistent with the chip area spiral, and the thin spiral of back is than the monolateral little 0.15mm-0.3mm of blade diameter.

3. the polygon brill milling cutter of single-blade according to claim 1, it is characterized in that: described chip area pitch is 16mm-20mm.

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