103results about How to "Reduce torsional deformation" patented technology

A chuck includes a holder body, a clamp sleeve, and a large number of needle rollers. The holder body has a shank portion, a flange, and a chuck sleeve. The clamp sleeve is fitted onto the outer circumference of the chuck sleeve such that the clamp sleeve is rotatable and axially movable relative to the chuck sleeve. The needle rollers are disposed between the chuck sleeve and the clamp sleeve over the entire circumference. The clamp sleeve is rotated to cause the needle rollers to revolve spirally along the outer circumferential surface of the chuck sleeve while rotating about their own axes in order to decrease and restore the diameter of the chuck sleeve. A thrust member is disposed between the end surface of the flange opposite the shank portion and a corresponding end surface of the clamp sleeve.

Laminate structures and methods of making laminate structures having overwrapped laminate edges which resist delamination and fraying or including one or more stabilizer laminates which afford greater radial and torsional rigidity in longitudinally slit tube structures.

The invention relates to a full-automatic single tube and pin welding machine which belongs to the technical field of welding, and the welding machine comprises a machine bed at a driving end, a machine bed at a driven end, a driving feeding mechanism, a welding operation machine, a driven feeding mechanism, an automatic charging mechanism and a welding host. The driving feeding mechanism and thedriven feeding mechanism realize the horizontal feeding of a welded steel pipe along the longitudinal direction of the welding machine and the radial rotary feeding motion of the steel pipe, the welding operation machine is provided with a pneumatic welding fixture and two automatic stud welding guns, the pneumatic welding fixture realizes the holding and positioning of the steel pipe according to production tact in the welding process, and the horizontal distance between the two stud welding guns and the vertical distance between the automatic stud welding guns and the welded steel pipe are adjustable. The automatic charging mechanism realizes the automatic pin charging process. The welding machine has simple structure, the feeding motion of two degrees of freedom can be realized by a servo motor, the positioning precision is high, the clamping action of the welding fixture and the charging process are pneumatically controlled, and the operation is convenient. The welding machine cancomplete pin welding operation automatically or manually.

The invention provides a forward-spinning spinning method. The outside spinning technology is combined with synchronous rotation, a short core mold, tension spinning and other technologies to achieve integral spinning forming of super-long thin-wall cylindrical parts, and therefore the technical problem that the common outside spinning technological method cannot be used for spinning the super-long thin-wall cylindrical parts is solved. According to the forward-spinning spinning method, the function of synchronous rotation of the two ends of workpieces is increased, the problem of torsional deformation of the super-long thin-wall cylindrical parts is solved, and therefore the precision of products is improved; the short core mold is adopted, so that the problems that core molds of the super-long thin-wall cylindrical parts lower heads and vibrate, the manufacturing cost is high, and demolding is difficult are solved. According to the forward-spinning spinning method, longitudinal drawing tension movement of the workpieces is increased, so that the super-long cylindrical parts are subjected to longitudinal force in the spinning process, the deforming and flowing of materials are facilitated, the problem that the ultra-long cylindrical parts bend and deform is solved, the product precision is improved, and integral spinning forming of the ultra-long thin-wall cylindrical parts is achieved.