Thread rolling machine is a multi-functional cold extrusion forming machine tool, thread rolling machine work can be in its rolling pressure range of cold state of the workpiece thread, straight, oblique thread rolling and other treatments; straight teeth, oblique teeth and oblique spline gear rolling; straightening, shrinking, rolling and all kinds of molding rolling. The machine has a safe and reliable electric-liquid execution and control system, which allows each work cycle to be selected among manual, semi-automatic and automatic modes.
Cold rolling process on wire rolling machine is an advanced non-cutting processing, which can effectively improve the intrinsic and surface quality of the workpiece, and the radial compressive stress generated during processing can significantly improve the fatigue strength and torsional strength of the workpiece, which is an ideal process of high efficiency, energy saving and low consumption.
The principle of cold rolling processing small modulus involute spline on thread rolling machine.L, R is the same parameters of a pair of involute rolling wheel, respectively, installed in the two spindles of the wire rolling machine, and can be driven in the drive mechanism in the same direction of synchronous rotation.R wheel can be driven by the cylinder for radial feed movement, L wheel can be adjusted through the adjusting mechanism of the indentation of the R wheel overlap on the surface of the workpiece P. The workpiece P is positioned with two center holes, and the radial compressive stress generated during processing can significantly improve the workpiece fatigue and torsion. The workpiece P is clamped with two center holes, and the fixture can be adjusted so that the workpiece can move axially and swing around the axis parallel to the main axis of the machine tool at the O point when it is under force by an angle of Φ, so as to ensure that the workpiece is always kept in a free-rolling state with the two rolling wheels in the process of cold rolling and to facilitate the clamping of the workpiece at the same time.
The structure size, shape tolerance and technical requirements of rolling wheel are formulated with reference to wire rolling wheel and cylindrical measuring gear, the common normal length of rolling wheel or spanning bar distance M is calculated according to the spline data in gear work, and the required material can be Cr12MoV (hardness 59-62HRC).
Reinforcing bar rolling straight thread connection technology, suitable for industrial and civil buildings, the requirement to give full play to the strength and ductility of the reinforcement of the important parts of the structure of the firm direction, diagonal, horizontal reinforcing bar connection construction. It is a simple and fast process, can be prefabricated, no open flame operation, no pollution of the environment, no explosion and fire hazards, safe and reliable, can be all-weather construction, saving a lot of steel and energy. Connecting rebar only with wrench, each rebar joint is about one minute. It shortens the construction period of the structure and realizes industrialized and civilized construction.
Post time: Oct-10-2023