High-adaptability and high-drilling-speed screw

Abstract

The invention provides a high-adaptability and high-drilling-speed screw. The screw comprises a screw head, a screw rod and a screw sharp edge; the screw head is provided with an internal hexagon; a cross groove is formed in the internal hexagon; a horizontal groove is formed in the cross groove; a through hole is formed in the horizontal groove; chip removing holes are formed in the front and back sides of the internal hexagon; chip removing pipes are arranged at the upper ends of the chip removing holes; the lower end of the screw head is connected with the upper end of the screw rod; an inner cavity is formed in middle of the screw rod; the upper end of the inner cavity is connected with the through hole; a cylinder boss is arranged at the lower end of the inner cavity; multiple sealingedges are arranged on the left and right sides of the screw rod; chip removing grooves are formed in the front and back sides of the screw rod; and threads are arranged between the sealing edges andthe chip removing grooves. The high-adaptability and high-drilling-speed screw has the characteristics of high drilling speed, high adaptability and convenience to remove chips, is not easy to generate deviation during drilling, improves the machining quality, and reduces the machining cost.

Description

【Technical field】 [0001] The invention relates to the field of fasteners, in particular to a screw with strong adaptability and fast drilling speed. 【Background technique】 [0002] A screw is a type of fastener consisting of a bolt head and a screw rod (a cylinder with external threads), which is used to fasten and connect two mechanical equipment parts with through holes. Screws are indispensable in daily life and in the field of sheet metal and machine tool processing technology. However, due to their simple design and insufficient performance, existing screws cannot quickly drill screws into other objects, resulting in screws that are easy to drill. Offset occurs during the input process, which affects the processing quality. [0003] At present, the screws commonly used in China are standard parts, that is, slotted screws or Phillips screws. This kind of screw has good fastening performance and is easy to disassemble and assemble. However, screws generally have only o...

AI Technical Summary

Problems solved by technology

However, screws generally have only one screw port, and only a corresponding auxiliary tool can be used for tightening or dismounting. When the auxiliary tool is missing or not around, the screw cannot be tightened or disassembled, which greatly limits Adaptability of screws

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