Introduce advanced processing equipment to meet the needs of precision parts and gear processing

With the increasing demand for precision parts processing, in order to meet the higher and higher precision processing requirements, we have introduced a grinding center, which is specially used for grinding precision spur gears and helical gears with a diameter of 350 mm and a tooth surface width of 160 mm. Gears, worms, screws and rotors, using what is claimed to be a unique machining system to DIN 2 precision and beyond.

In order to be able to grind a variety of precision component gears to tight tolerance machines, the products to be produced include spur and helical gears, gears with raised ends and root fillet radii, precision gears with tooth profiles such as recessed teeth Parts, and twin lead forms, cylindrical and tapered roots. Chosen for its versatility, reliability and accuracy - the latter achieved through a high level of onboard intelligence and a developed machining process to compensate for helical twist.

Helical torsion is what happens when a helical gear 'guides the crown' to improve meshing and reduce noise and wear. The lead protrusions change the amount of material removed from the side of the tooth by shifting the tool motion away from the true helix. The problem is that 'formal' grinding has the undesirable effect of causing the flank profile to vary across the face. Especially in high-precision and low-noise applications, this variation affects precision component gear performance by concentrating the load on specific areas of the teeth during meshing.

The new device solves this problem by using specialized software written by engineers to calculate and control the additional movement of the grinding wheel during the grinding process. During machining, the workpiece is rotated about its axis and the tool is moved in order to change the angle of inclination of its axis relative to the axis of the workpiece. As a result, errors are reduced along each instantaneous line of contact between the tool envelope and the surface of the groove being machined. The result is better tooth contact during meshing and improved torque transfer efficiency.

Precision Component Gear Grinding Centers combine rigidity with high power for CBN or traditional deep grinding operations.

Although we use it to provide a high level of precision in the machining design, it generally exceeds this benchmark, achieving 'good surface' performance through the tooth profile.

The new machining equipment combines a high level of intelligence with on-board functions such as automatic coordinate adjustment, in-cycle wheel dressing, integrated contour management and coordinate measurement. All precision component gear, worm and spline profiles can be verified using the integrated probing system, allowing automatic on-machine correction if necessary.

According to the engineers, the new machining equipment is easy to program, set up and use. Features include an integrated profile management system and an advanced touchscreen interface that allows the operator to take a typical drawing and enter coordinates directly into the machine. By extracting data from the onboard Renishaw probing system and being able to predict small changes in the wheel profile for precise results. After a new grinding process, if the workpiece fails to meet the tolerances, the machine calculates the required adjustments for the wheel shape or axis position, transferring the data to the 2-axis CNC wheel dressing system.

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