Straight line flexible positioning device

A straight-line flexible positioning device, comprising:

• a X-shaft positioning portion, wherein the X-shaft positioning portion includes an X-shaft pedestal, an X-shaft sliding rail arranged on the X-shaft pedestal, an X-shaft sliding table installed on the X-shaft sliding rail and an X-shaft power unit driving the X-shaft sliding table to move along the X-shaft sliding rail in front and back;
• a Y-shaft positioning portion, wherein the Y-shaft positioning portion includes a Y-shaft pedestal connected with the X-shaft sliding table, a Y-shaft sliding rail arranged on the Y-shaft pedestal and perpendicular to the X-shaft sliding rail, a Y-shaft sliding table installed on the Y-shaft sliding rail and a Y-shaft power unit driving the Y-shaft sliding table to move along the Y-shaft sliding rail in left and right;
• and
• a Z-shaft positioning portion, wherein the Z-shaft positioning portion includes a stand column connected with the Y-shaft sliding table and is provided with an inner guiding chamber, a Z-shaft screw shaft installed in the inner guiding chamber, a Z-shaft screw nut installed on the Z-shaft screw shaft and a Z-shaft servo motor driving the Z-shaft screw shaft to rotate, wherein the Z-shaft screw shaft is vertically arranged perpendicular to the X-shaft sliding rail and the Y-shaft sliding rail, wherein the Z-shaft screw nut is fixedly connected with a spline shaft sheathed outside the Z-shaft screw shaft;
• wherein a top portion of the inner guiding chamber on the stand column is provided with a spline nut for the spline shaft to pass through, wherein a top end of the spline shaft extends out of the inner guiding chamber, wherein an installation panel is arranged above the stand column;
• wherein the Z-shaft screw shaft is installed on the stand column through a Z-shaft installing base located at the bottom of the inner guiding chamber;
• wherein an X-shaft limiting stopper is arranged on the X-shaft pedestal, wherein the X-shaft sliding table is provided with a collision block that can be matched with the limiting stopper to limit the stroke of the X-shaft sliding table;
• wherein the X-shaft sliding rail is arranged at both sides of the X-shaft screw shaft respectively, wherein the X-shaft sliding table is installed on the X-shaft sliding rail through an X-shaft sliding block;
• wherein the X-shaft pedestal is installed with an X-shaft side protecting plate at the outside of two X-shaft sliding rails, wherein the X-shaft pedestal is installed with an X-shaft upper protecting plate at the top portion of the X-shaft side protecting plate, wherein the X-shaft sliding table passes through the inside of the X-shaft upper protecting plate;
• wherein the X-shaft pedestal is provided with a ruler for indicating the position of the Y-shaft pedestal, wherein the X-shaft pedestal is installed with an X-shaft aligning base and an X-shaft aligning block installed on the X-shaft aligning base.