With the continuous development of science and technology, deep hole drill is the internal chipdeep hole drill bitThe typical structure. It is improved on the basis of a single-edged deep-hole drill with chip removal. The cutting edge is double-staggered, and the chips are cut from both sides and enter the drill pipe discharge hole through the double-sided chip discharge hole. The deep hole cutting is evenly distributed, the chip breaking performance is good, the drilling is stable and reliable, and the deep hole straightness produced by drilling chips is good. Here are some points of deep hole drill:

1. Deep hole drill can not directly observe the cutting situation of the tool, but can only judge the chip removal and tool wear by listening to the sound, looking at the chips, observing the machine load and cutting pressure.

2. The deep hole drill is difficult to dissipate heat, and an effective and reliable cutting cooling method is required.

3. Deep hole drill is easy to produce hole inclination, so the guiding device and measures should be considered in the structural design of the tool and the liquid feeder.

4. Deep hole drill hole is difficult to remove chips. If there is a chip blockage, it is easy to damage the tool. Therefore, it is necessary to select the cutting parameters reasonably to ensure reliable chip breaking and smooth chip removal.

　　5.deep hole drill bitThe hole is difficult to remove chips. If there is a chip blockage, it is easy to damage the tool. Therefore, it is necessary to select the cutting parameters reasonably to ensure reliable chip breaking and smooth chip removal.

When the aspect ratio of the borehole exceeds 20 or the depth exceeds 300mm, the traditional drilling rig is helpless, so other solutions have to be sought. Since the advent of the deep hole drill, with its unique advantages in efficiency, accuracy and depth, it has subverted the traditional deep hole processing method.

The deep hole drill has a good performance in slender holes. With the increasing maturity of machine tool technology, the unilateral drilling depth of deep hole drill bits can reach 3000mm, which can almost meet the depth requirements of all drilling in the mold field. Because the deep hole drill bit adopts the principle of automatic chip removal of gun drill, there is no need to retreated or shut down midway during the processing, so the processing efficiency is more than 6 times higher than that of traditional drilling machines. The boring accuracy and surface roughness of the gun drill have reached a very high level, and will always occupy a very important position in the field of deep hole processing.

In the traditional deep hole processing technology, the workpiece is fixed on the machine table, and the tool is perpendicular to the end face of the workpiece. However, when multiple end faces of the workpiece need to be drilled, and even non-vertical end faces need to be drilled, the workpiece can only be moved manually or the angle of the workpiece can be adjusted to suit the machining method of the machine tool. Re-calibrating the workpiece will face the waste of time and the accuracy deviation caused by the second clamping, and it is more likely that the workpiece will be scrapped due to the angle error.

　　deep hole drill bitThe twin-screw twin-drive design effectively reduces the tension of a single screw, thereby improving the machining accuracy, positioning accuracy and repeatability, and improving the stability and service life of the machine tool. Due to the innovative design of the twin-screw double drive, the processing angle of the spindle is greatly increased, and the angle relative to the horizontal direction can reach 20. It can reach 35. It is 35% higher than the common single-screw design. The machine tool can flexibly switch drilling and milling modes to realize more complex processing processes, such as automobile molds with complex processing angles: first, the end face to be drilled is processed into a plane by milling mode, small holes are processed by gun drilling, and larger holes are processed by single-pipe drilling. The comprehensive aperture range is 3~60mm. After drilling, tap and other operations. Only when the workpiece is clamped and the angle of the machine tool is automatically adjusted, the processing can be completed in an effective manner.