Building the Xinggong brand through quality.
The working principle of a thread-rolling machine
Release Date:
2022-01-06 00:00
Source:
A thread‑rolling machine is a versatile cold‑extrusion forming machine tool. Within its rated rolling force, it can perform thread rolling, straight‑thread rolling, and helical‑thread rolling on workpieces in the cold state; it can also roll straight gears, helical gears, and splined gears; as well as carry out straightening, diameter reduction, burnishing, and various other forming‑roll operations. The machine features a safe and reliable electro‑hydraulic actuation and control system, allowing each working cycle to be selected from manual, semi‑automatic, or automatic modes.
Thread rolling is an advanced non‑cutting manufacturing process that effectively enhances both the internal and surface quality of workpieces. The radial compressive stresses generated during machining significantly improve the fatigue strength and torsional strength of the components, making it an ideal process that is highly efficient, energy‑saving, and low‑consumption.
The principle of cold-rolling small‑module involute splines on a thread‑rolling machine. L and R are a pair of involute rolling wheels with identical parameters, mounted on the two main spindles of the thread‑rolling machine and driven by the transmission mechanism to rotate synchronously in the same direction. The R wheel can be radially fed by an oil cylinder, while the L wheel, via an adjustment mechanism, can be aligned with the R wheel so that their contact marks on the workpiece surface P coincide. The workpiece P is clamped using its two center holes; the adjusting fixture allows axial movement of the workpiece and, under load, enables it to swing about an axis passing through point O and parallel to the machine tool’s spindle by an angle Φ, thereby ensuring that, throughout the cold‑rolling process, the workpiece remains in free rolling engagement with both rolling wheels while facilitating convenient workpiece loading and unclamping.
The structural dimensions, geometric tolerances, and technical requirements of the rolling wheel are specified in accordance with those for thread‑rolling wheels and cylindrical measuring gears. The normal tooth thickness or center distance M of the rolling wheel is calculated based on the spline data provided in the gear‑working handbook, and Cr12MoV (with a hardness of 59–62 HRC) may be selected as the material.
Reinforced‑steel rolled straight‑thread connection technology is suitable for both industrial and civil structures, particularly for the splicing of vertical, inclined, and horizontal reinforcement in critical structural elements where full utilization of steel strength and ductility is required. The process is simple and rapid, allows for prefabrication, involves no open flame, produces no environmental pollution, eliminates risks of explosion or fire, and ensures safe, reliable performance. It enables all‑weather construction while significantly saving steel and energy. Connection of reinforcing bars requires only a wrench, with each splice completed in approximately one minute, thereby shortening the overall construction schedule and facilitating industrialized, civilized construction practices.
Related News
A Brief Discussion on the Adjustment and Operating Procedures of Thread Rolling Machines
The support block is mounted on the support base, with its top welded using cemented carbide. Loosen the fastening bolts of the support block, adjust its height by adding or removing shims beneath the block, and then tighten the bolts.
Introducing several key points for reducing equipment failures in thread-rolling machines.
In modern enterprises, the utilization rates of various types of equipment are already very high, and the widespread adoption of machinery has also increased operational costs. After all, mechanical equipment is inherently prone to malfunctions. Below, we will focus on thread‑rolling machines and discuss strategies for minimizing such failures.
Thread Rolling Machine Operating Procedures
When operating the thread‑rolling machine, be sure to inspect and clean the equipment at the start of each shift, and perform routine maintenance and upkeep to ensure it remains tidy, clean, well‑lubricated, and safe.
Xinggong Mobile Official Website
Hebei Xinggong Machinery Manufacturing Co., Ltd.
Phone:0319-7585009
Email:info@xingg.com
Website:https://www.xingg.com
Address: Industrial Zone, Xingjiawan Town, Xingtai City
Copyright © 2022 Hebei Xinggong Machinery Manufacturing Co., Ltd.