Gripping cradle to a pneumatic pressure tube gripping mechanism mounted

Gripping cradle to a pneumatic pressure tube, in the left outer side wall of the tube is provided with a positioning plane left, right outer side wall is provided with the right orientation flat profiled tubular member, positioning the left and right orientation flat plane of symmetry to the axis of the tube shaped member , the distance H between the left and right positioning plane orientation flat tube outer diameter D is equal to the composition of the grip tube, the outer wall of the left side of the left plane and the positioning tube is integrated structure, with the right positioning plane of the circle the right side of the outer wall of the tube integrated structure. Pneumatic pressure comprises a cradle gripping means mounted on a fixed card, the cards and said fixed tube holding structure.