Cover for cutting tool, holder for cutting, and cutting device
A cutting tool and cutting device technology, applied in the fields of cutting tool cover, cutting bracket and cutting device, can solve the problems of scattering of cutting powder, etc., and achieve the effects of increasing surface area, preventing scattering, and suppressing temperature rise
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Deformed example 1
[0092] In modification 1, such as Figure 9 As shown in the cutting tool cover 12A shown, the surfaces 124a of the main body portion 121a and the extension portion 122a facing the workpiece W are formed as tapered surfaces that gradually separate from the workpiece W as they go outward. In this case, since the gap between the workpiece W and the surface 124a gradually decreases toward the inside, the air flow passing area at the outer peripheral portion of the extension portion 122a (diameter of the outer peripheral portion×π×gap) and the extension portion The difference in airflow passage area (diameter of the inner peripheral portion×π×gap) at the inner peripheral portion of 122 is further increased. Therefore, the flow velocity of the airflow increases more rapidly as it goes inward than in the case of the above-described embodiment. Therefore, the faster airflow acts on the cutting powder discharged from the cutting edge of the insert 112, and the cutting powder can be at...
Deformed example 2
[0096] In modification 2, such as Figure 10 As shown in the cutting tool cover 12B shown, the surfaces 124b of the main body portion 121b and the extension portion 122b facing the workpiece W are formed as tapered surfaces that gradually approach the workpiece W as they go outward. With such a shape, even if the cutting powder discharged from the cutting edge of the insert 112 is reflected on the surface 124b, it can be reflected inwardly compared with a flat surface, thereby further preventing scattering of the cutting powder.
Deformed example 3
[0098] In modification 3, such as Figure 11 As shown in the cutting tool cover 12C shown, the main body portion 121c and the surface 124c of the extension portion 122c facing the workpiece W are formed as paraboloids that gradually approach the workpiece W toward the outside. With such a shape, even if the cutting powder discharged from the cutting edge of the insert 112 is reflected on the surface 124c, it can be reflected inwardly compared with a flat surface, thereby further preventing scattering of the cutting powder.
[0099] In addition, in order to improve heat dissipation efficiency, it is preferable to form groove-shaped heat dissipation fins on the surface of the cutting tool cover 12 to increase the surface area. For example, it is preferable to provide fins arranged side by side at approximately equal intervals on the surface of the extension portion 122 of the cutting tool cover 12 . Since the grooves are formed between adjacent cooling fins, the air passes thro...
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Abstract
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