Spiral type chip dividing drill
A helical and knife-edge technology, which is applied in the direction of drill repairing, drilling tool accessories, drilling/drilling equipment, etc., can solve the problems of cutting marks on curved surfaces, the burrs of special-shaped parts cannot be processed in place, and the arc surface is difficult to achieve. The effect of good cutting ability
Inactive Publication Date: 2013-06-12
江苏新天洋机械制造有限公司
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Problems solved by technology
In China, most of the tools used by ordinary machine tools or hand-ground twist drills are still used. This kind of tools cannot be processed for some specific curved surfaces. In addition, due to the large force of ordinary machine tools, the tools are not It is very long, which brings that the burrs in some deep holes of special-shaped parts cannot be processed in place
The hand-ground tool can satisfy the length and angle of the tool, but it may be difficult to grind some arc surfaces on the tool, resulting in irregular cut marks when processing curved surfaces
Method used
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[0011] Depend on figure 1 It is known that the spiral chip splitting drill is composed of a clamping part 1, a deep cutting edge part 2, an arc serrated cutting edge part 3, a tapered cutting edge part 4, two main cutting edges 5, a long chisel edge 6 and a short chisel edge 7, The clamping part 1 is longer than ordinary ones, and an arc surface is added to the front end of the deep cutting part 2 . The circular-arc sawtooth blade part 3 is the rear part of the knife tip, and is in the shape of six-edged circular-arc spiral serrations. The tip of the tapered blade portion 4 is conical, and the blade is a high-density helical cutting edge with a shallow cutting edge and a thinner diameter.
[0012] Depend on figure 2 It is known that it is a schematic diagram of the arc sawtooth blade part. The circular-arc sawtooth blade part 3 consists of two main cutting edges 5, two chisel edges 6 and a short chisel edge 7, and the included angle between the two main cutting edges is 13...
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The invention relates to a spiral type chip dividing drill, which comprises a clamping part (1), a deep cutting edge part (2), a circular arc saw tooth cutting edge part (3) and a tapered cutting edge part (4), wherein the clamping part (1) is longer than the ordinary clamping part, and the front end of the deep cutting edge part (2) is additionally provided with a circular arc surface. The spiral type chip dividing drill is characterized in that the circular arc saw tooth cutting edge part (3) is a cutter point back part and is in a six-blade circular arc-shaped spiral saw tooth shape. Through the structure, by aiming at the characteristics of various special-shaped elements, the thorough innovation is carried out in aspects of cutter length, diameter, angle, circular arc degree and the like. The processing of various curve surfaces can be completed by one cutter as much as possible.
Description
technical field [0001] The invention belongs to automatic equipment for deburring special-shaped aluminum castings such as automobile and motorcycle wheel hubs and engines, and in particular relates to a spiral chip-separating drill. Background technique [0002] The twist drill used for drilling holes on various parts is a very economical, practical and adaptable tool, and both at home and abroad attach great importance to the improvement and innovation of the twist drill drilling technology. In China, most of the tools used by ordinary machine tools or hand-grinded twist drills are still used. This kind of tools cannot be processed for some specific curved surfaces. In addition, due to the large force of ordinary machine tools, the tools are not It is very long, which brings that the burrs in some deep holes of special-shaped parts cannot be processed in place. Manually ground tools can satisfy the length and angle of the tool, but it may be difficult to grind some arc su...
Claims
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IPC IPC(8): B23B51/00
Inventor 苏朝品
Owner 江苏新天洋机械制造有限公司