为解决深孔加工的问题,我们设计了本文介绍的单管喷吸钻。 一单管喷吸钻的结构 1.冷却排屑系统 单管喷吸钻(图1)。钻孔时从冷却系统来的压力油,有1/3经接头19进入支座3,再从联接套 4和排屑管 1之间宽 0.3～0.4 mm的30°斜隙中流回油箱。由于流体的附壁效应,使钻杆右端形成负压, In order to solve the problem of deep hole processing, we designed the single tube suction drill described in this article. Structure of a single pipe suction drill 1. Cooling chip removal system single pipe suction drill (Figure 1). One third of the pressure oil from the cooling system at the time of drilling is fed into the holder 3 via the nipple 19 and flows back to the tank through a 30 ° diagonal 0.3 to 0.4 mm wide between the sleeve 4 and the chip discharge tube 1. Due to the Coanda effect of the fluid, the right end of the drill pipe forms a negative pressure,