Technical Parameters of Spiral Bevel Gear Grinding Machine
Spiral bevel gear grinding machines are high precision, highly efficient grinding machines designed to producing ground spiral bevel gears in the most advanced method for producing these components. As the name implies, these components are formed from a continuous spiral bevel gear which is cut using various grinding techniques. The grinding machines are used to achieve very precise results when manufacturing high speed, large diameter and ultra-fine accuracy gears.
The main parameters that describe a spiral bevel gear grinding machine include its size, the maximum load, the speed of its gears, and the accuracy it can achieve. The size is usually expressed in terms of the number of vertical and horizontal rotors available, such as a five-axis, six-axis, or a seven-axis machine, where each axis can have different rotating speeds. Typically, grinders are rated at either one or two spindles and are capable of grinding components up to 16 inches in diameter. The maximum load refers to how much weight can be applied to the components and is usually expressed in terms of pounds per hour. Some machines may also be rated for a specific rotational speed; for example, a machine rated for 6000 rpm is suitable for specialized work, such as the cutting of ultra-fine steel wire petals for machine gearing.
The accuracy and durability of the components formed by spiral bevel gear grinding machines is largely dependent on the quality and wear of the cutting wheel or grinding wheel that is used. Depending on the type of grind and the application, the wheel will typically be made from tungsten carbide, cobalt, diamond, ceramic or some other material. The average wheel diameter is between 12 and 25 inches and is usually the same size as the maximum load the machine can handle.
The overall accuracy of the components produced will depend upon the type of grinding wheel used, the size and shape of the workpiece, and the type of gear cutting techniques and grinding techniques employed. The accuracy of grinding wheels is typically expressed as μm (microns) or as a percentage of the actual diameter of the component. Grinding wheels are rated in terms of surface finish, and the grinding process will produce a surface that is of uniform size, shape, and finish.
In addition to accuracy, the durability of grinding wheels is also critical, as this will dictate how long the grinding wheel will last before it needs to be replaced. Typically, grinding wheels rated between 200 and 500 hours are considered long-lasting and are best for large volume manufacturing applications. For more precise and delicate work, such as the production of gears with roots or crowns, a grinding wheel is usually rated between 10 and 50 hours and is considered to be a short-term solution.
In conclusion, spiral bevel gear grinding machines are designed for producing high precision and high efficiency gears in advanced applications. The main parameters that describe a spiral bevel gear grinding machine include its size, the maximum load, the speed of its gears, and the accuracy it can achieve. This type of grinding machine is typically used when the components require precise accuracy, high wear resistance, and long-term durability.
