In the field of mechanical processing, the stability of machine tools is crucial for machining quality, especially for internal thread grinding centers. Machine tool vibration is one of the main factors affecting machining accuracy and surface quality, which may lead to dimensional deviations, increased surface roughness, and shortened tool life. To ensure high precision and quality of internal thread grinding, the following are five key measures to improve equipment stability.

1、 Optimize the structural design of machine tools

The structural rigidity of machine tools is the foundation for resisting vibration. InInternal thread grinding centerIn the design and manufacturing process, high-strength materials and reasonable structural layout should be used. For example, increasing the weight and thickness of the bed, using box or honeycomb structures to improve overall stiffness. At the same time, reasonably arrange reinforcement bars to enhance the support capacity of key parts. In addition, finite element analysis is conducted on components such as the spindle box and worktable to optimize their shape and size based on the analysis results, in order to reduce deformation and vibration caused by stress during the machining process.

2、 Dynamic balance adjustment

The imbalance of rotating components is an important cause of machine tool vibration. For high-speed rotating components such as the spindle and grinding wheel of the equipment, dynamic balancing must be carried out. After installing a new grinding wheel or replacing the spindle, a professional dynamic balancing instrument should be used to check and adjust it. By adding or removing counterweights at appropriate positions, the mass distribution of rotating components can be made uniform, thereby reducing the vibration caused by centrifugal force. Regular inspection and maintenance of dynamic balance status are also necessary to ensure long-term stable operation.

3、 Adopting vibration reduction technology

Both passive and active vibration reduction technologies can effectively reduce machine tool vibration. Passive vibration reduction devices such as rubber damping pads, air springs, etc. can be installed between the machine tool and the ground to absorb and isolate external vibrations. The active vibration reduction system monitors the vibration status of the machine tool in real time through sensors, and then uses the actuator to generate a reverse force to counteract the vibration. In the equipment, suitable vibration reduction methods can be selected according to different working conditions, or a combination of both can be used to achieve the best vibration reduction effect.

4、 Accurate optimization of machining process parameters

Unreasonable processing parameters can exacerbate machine tool vibration. In the process of internal thread grinding, it is necessary to reasonably select parameters such as grinding wheel linear velocity, feed rate, cutting depth, etc. based on factors such as workpiece material and thread specifications. Excessive grinding wheel line speed may lead to excessive centrifugal force and vibration, while excessive feed rate can increase cutting force and cause vibration. By conducting experiments and accumulating experience, the optimal combination of process parameters can be determined, which can ensure processing efficiency and maintain the stability of the machine tool.

5、 Strict daily maintenance and upkeep

Good maintenance of machine tools is the key to maintaining their stability. Regularly conduct comprehensive inspections of equipment, including lubrication of guide rails, adjustment of clearance between screw and nut pairs, and normal operation of motor transmission systems. Timely clean chips and dust to prevent them from entering the interior of the machine tool and causing wear and failure. At the same time, according to the requirements of the machine tool manufacturer, vulnerable parts such as sealing rings and filters should be replaced regularly to ensure that all components of the machine tool are always in optimal working condition.

In summary, machine tool vibration has a significant impact on the machining quality of internal thread grinding centers. By optimizing the dynamic balance adjustment of the machine tool structure design, adopting vibration reduction technology, optimizing precise machining process parameters, and strict daily maintenance and upkeep, five key measures can effectively improve the stability of the equipment, thereby improving the accuracy and surface quality of internal thread machining and meeting increasingly stringent mechanical manufacturing requirements.