
The current market production of second-hand arms drill beds is mostly single-axis and without a steering condom, but once used for some time, there will be a gap between the main axle and the main axle box, leading to a severe main axle beating, and more than one affecting the precision of the second-hand arcade drill bed, the inaccuracy of the gap between the shaking arm and the pole, the lack of locks when the gap is wide, and the laughter will lead to the swing of the arm, etc

There is also a gap between the pole and the shaking arm after the second-hand drill bed was used the previous year, and when the drill is drilled, there is a severe rise in the arm, leading to a tilt of the drill. The main axle plate moves between the wavering arm guidance tracks over a long and long period of time, resulting in a lack of locks, swinging to the right and left of the main axle when drills are made, and a larger hole is drilled。

But is there any way to overcome these disadvantages? The second-hand equipment in the vault tells you to use a precision-guided condom for the second-hand shaking of the arm. The guidance kit can be replaced with the main axle aperture over a long period of time and it is not known how precise it will be, thus ensuring that the precision of the arm-drilling rig will not change. In general, locks between arms and columns are so tight that the locks are too long, with severe swings and head-ups when piercing, and can be tightened in both sides with the use of locks, which do not occur for long. The main axle box may also be used in the same process as a scaffolding, and the iron may be adjusted at any time depending on the change in the gap, so as to ensure that the main axle box does not have the precision of shaking the impact hole during the hole. The precision of the second-hand-hand-hand-drilling bed can naturally be assured as long as these three locations are assured。




