Intelligent device for determining operation point and screw rod thereof

An intelligent device for determining an operation point, comprising:

• a linear rail body;
• a screw rod, disposed on the linear rail body, wherein the screw rod comprises a first screw rod portion, a second screw rod portion, and a determining operation area, the determining operation area is located between the first screw rod portion and the second screw rod portion, the first screw rod portion is wrapped with a first thread groove, the second screw rod portion is wrapped with a second thread groove, the first thread groove and the second thread groove extend in opposite directions based on the determining operation area, and a lead of the second thread groove is greater than a lead of the first thread groove;
• a first slide, slidably disposed on the linear rail body and corresponding to a side of the first thread groove, wherein the first slide comprises:
• a first slide body, comprising a first through groove and a first ball circulation channel that run through the first slide body in a long axis direction, wherein the screw rod penetrates through the first through groove;
• a second slide, slidably disposed on the linear rail body and corresponding to a side of the second thread groove, wherein the second slide comprises:
• a second slide body, comprising a second through groove and a second ball circulation channel that run through the second slide body in the long axis direction, wherein the screw rod penetrates through the second through groove;
• a plurality of first balls, rolling in the first thread groove and the first ball circulation channel to cyclically roll between the screw rod and the first slide;
• a plurality of second balls, rolling in the second thread groove and the second ball circulation channel to cyclically roll between the screw rod and the second slide;
• and
• two limiting devices, wherein one of the two limiting devices is disposed on the linear rail body at a right end of the first screw rod portion and adjacent to the determining operation area, and the other of the two limiting devices is disposed on the linear rail body at a left end of the second screw rod portion and adjacent to the determining operation area.