CNC gear grinders are specialized CNC grinding machines designed for various gear types, used for manufacturing or restoring gear surfaces. OTURN can customize a variety of specialized CNC gear grinders: generative, contour, multi-purpose, and specialized worm/spline machines. Whether you’re providing machining services or manufacturing your own branded gears, contact us.

Our CNC gear grinders feature a double-threaded grinding wheel, enabling simultaneous tooth surface grinding and edge chamfering, and deburring. The part program memory can store up to 200 workpieces, far exceeding comparable machines.

Powered by an AC servo motor, the machine’s speed is precisely controlled. Equipped with an automatic pallet loading and unloading system and integrated unit control, the highly automated system allows you to run your projects faster and at lower costs.

Choosing OTURN means choosing a high-quality partner. Whether you’re working with involute, cycloid, circular arc, spur, helical, or other gear profiles, our CNC gear grinders can handle them flawlessly. We believe our high-precision machines and affordable price will create greater value for you.

OTURN’s CNC gear grinding machines not only have standard cooling systems but also have advanced coolant filtration systems. This system removes chips and particulate matter, as well as lubricant floating on the coolant surface. Because clean coolant is more thermally conductive, it effectively removes heat from the cutting zone, lowers the temperatures, and improves machining accuracy while extending tool and equipment life. With it, you don’t need to change the coolant often. Using our machines with filtration systems will create long-term profits for you.

1. Automotive

Different gears of cars are a core area of CNC gear grinding applications. It is primarily used for machining gears in various transmissions; new energy vehicle drive systems, such as motor reducer gears and differential gears; engine timing system gears and oil pump gears; steering system gears; and gears in other important automotive parts.

2. Wind Power Industry

It is primarily used for machining the main gearboxes of wind turbines, raising their load-bearing capacity and service life.

3. Aerospace

It processes gears of aircraft gears to raise their strength, tolerance, reliability, and lightweight performance at different temperatures. It is also suitable for gears in transmission systems and auxiliary power units.

4. Industrial Automation and Robotics

Industrial robots require extremely high motion accuracy, repeatability, rigidity, and low backlash, and gear grinding is important to achieve these performance characteristics. Gears in precision reducers, high-end CNC machine tools, and other machines also require CNC gear grinding.

5. Marine

It is used for machining high-speed, heavy-loaded gears in main propulsion systems and conventional auxiliary systems. 6. Medical Machinery

The miniature, ultra-quiet, and highly reliable gears used in high-end medical equipment require precision grinding.

7. Rail Transit

Gears used in traction drive systems, such as locomotives, high-speed trains, have strict needs for load-bearing capacity and low noise levels, requiring precision grinding.

8. General Machinery

Gears used in various industrial gearboxes, pumps, compressors, and other equipment require high precision, low noise levels, and long life.

OTURN has been deeply involved in the metalworking industry for over a decade. We understand the importance of high precision of gear machining, so we offer solutions for all types of gears. Whether you’re creating a gear from scratch or restoring it, our advanced CNC gear lathes can handle it with ease. We employ engineers who graduated from renowned engineering schools, experienced operators, and a well-trained after-sales team. From the moment you submit your business requirements, we’ll plan the complete machining process to ensure our equipment keeps your business running efficiently and profitably. Choosing OTURN means choosing the most trusted business partner.

EBook Download

Contains information on the OTURN CNC gear grinding machine operating instructions, precautions, routine maintenance, and equipment commissioning, as well as the parts and different materials it can process.

Catalog Download

Includes information and prices for all types of grinding machines. We also categorize various machining methods other than grinding, introducing their profiles and applicable industries, so you can choose the right metalworking solution for your project.

Videos

These videos take note of the production, commissioning, and quality inspection of our CNC gear grinding machines, giving you an insight into how our machines are built and operated. The videos also feature introductions to factories and companies.

1. Abnormal wear is determined by measuring the force at the contact point between the grinding wheel and the workpiece.

If the grinding wheel feed is driven by a motor, changes in the motor’s current or power reflect changes in the loading force, indirectly indicating wear. 

2. AE sensors capture high-frequency vibration signals in real time. When the grinding wheel contacts the dresser or wear increases, the AE signal changes, and the part can be used to determine wear and confirm dressing effectiveness.
3. In addition to acoustic emission, multi-dimensional sensing can be combined with vibration and power signals to assess grinding wheel condition.
4. Images of the grinding wheel surface are captured using linear CCD or high-speed imaging technology, extracting features like standard deviation, kurtosis, and entropy. Then use Artificial neural networks (ANNs) to evaluate tool life, achieving real-time monitoring accuracy of less than 5%.
5. The control system automatically adjusts G-code coordinates based on the last dressing’s baseline diameter and the current residual wear, compensating for edge loss and performing light cuts or “ghost passes” to precisely maintain tolerances.
6. The machine tool’s built-in measurement system measures gear form errors in time, feeding the measurement results back to the CNC system for automatic compensation and dressing of grinding wheel wear, thereby maintaining tooth form accuracy.

Yes, to match the hardness of ceramics, diamond or CBN grinding wheels are typically used, along with slow speeds and cooling liquids to avoid thermal damage and cracking. Multi-axis CNC grinding equipment is also often used for precision machining of ceramics.

However, when performing precision machining on ceramic gears, it’s important to note that while ceramics are extremely hard, they are also very fragile and can easily fracture or chip because of strong forces. During the grinding process, cutting forces and temperatures should be strictly controlled to prevent the propagation of microcracks. Therefore, low cutting speeds and fine feeds can be used to avoid thermal cracking; strict cooling can also effectively reduce thermal damage.

Furthermore, the grindability of different ceramic types varies significantly, requiring to analysis of different machining plans.

General-purpose generative gear grinding machines can grind external and internal gears, spur gears, and splines. For shafts with splines, machines with both profile and generative grinding methods are ideal.

Gear grinders with spline grinding capabilities or high-load, high-precision generative gear grinding systems are also suitable.

If you would like to add other functions to your order, please contact our online technicians. We are committed to providing customers with complete and comprehensive processing solutions.