The thread rolling machine is a multi-functional cold extrusion-forming machine tool. The thread rolling machine can process the thread, straight grain, and oblique grain rolling of the workpiece in a cold state within its rolling pressure range; straight teeth, helical teeth, and helical spline gears rolling; straightening, reducing, rolling and various forming rolling. The machine has a safe and reliable electric-hydraulic execution and control system, which allows each working cycle to be selected from three modes: manual, semi-automatic and automatic.
The thread rolling cold rolling process is an advanced non-cutting process, which can effectively improve the internal and surface quality of the workpiece. The radial compressive stress generated during processing can significantly improve the fatigue strength and torsional strength of the workpiece. It is an efficient, energy-saving, low-consumption ideal process.
The working principle of thread rolling machine
The thread-rolling machine is different from the threading machine. A thread-rolling machine is a machine tool that forms threads on the workpiece by pressure. It does not cut the workpiece. At the same time, the extrusion force on the workpiece can improve the tightness of the workpiece and increase its strength of the workpiece. It is mainly used It is suitable for thread processing of solid workpieces (such as steel bars). It has the advantages of simple operation, energy saving and environmental protection, and high work efficiency.
The thread-rolling machine is mainly composed of the machine body, distribution box, hydraulic system, cooling system, and thread-rolling wheel shaft. It is generally divided into two-axis thread-rolling machines and three-axis thread-rolling machines according to the number of axes. The difference is that the two-axis thread rolling machine is cheap and can only process solid workpieces, while the three-axis thread rolling machine is expensive and can process tubular workpieces.
Working process of thread rolling machine
1. Debug the machine tool, turn on the power supply as required, add coolant to the coolant tank, and then start the thread rolling machine for the trial operation to see if the cooling system and control system is working normally.
2. According to the diameter of the steel bar that needs to be rolled, install the corresponding thread rolling wheel and replace the corresponding washer at the same time to ensure the accuracy of the thread pitch.
3. Clamp the steel bar, install the steel bar to be rolled on the centering jaw, align the protruding length with the end face of the rolling head stripping blade at the starting position, and clamp the steel bar.
4. Start the thread rolling machine, turn the moving handle, turn forward to start stripping ribs, continue to feed and roll threads, press the reverse start button after thread rolling, and automatically retract the knife.
After the work is over, clean the machine tool to keep it clean and dry, and regularly perform maintenance such as lubricating oil replacement and tool wear on the thread rolling machine.
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