The dual head carving machine, with its dual spindle collaborative processing characteristics, is widely used in the field of precision manufacturing. The scientific setting of its maintenance cycle directly affects the machining accuracy, operational stability, and service life of the equipment. Unlike single spindle equipment, the symmetry and linkage of the dual head structure require maintenance that takes into account both "common basic maintenance" and "dual axis collaborative special maintenance". The cycle division needs to be dynamically adjusted based on equipment operating load, processing materials, and environmental conditions. The core can be divided into three key cycle levels: daily, regular, and long-term.
Daily maintenance is the basic guarantee, with the cycle centered around "before and after daily operation". Before starting up, it is necessary to focus on checking the status of the dual spindle to confirm that there is no abnormal noise or collision on the spindle end face. At the same time, check whether the air pressure and oil pressure of the two spindles are within the normal range to avoid collaborative machining deviation caused by uneven pressure. During the processing, it is necessary to regularly inspect the guide rail lubrication system to ensure that the lubricating oil evenly covers the guide rail surface and prevent dry friction during biaxial movement. After shutdown, the equipment must be cleaned, with a focus on removing chips and oil stains from the dual spindle tool holder. The stability of the tool holder in the tool magazine should be checked, and the workbench should be wiped and coated with rust proof oil to avoid residual chips causing component wear.
Regular maintenance focuses on core component wear and tear, and the cycle can be divided into two sub levels: "weekly" and "monthly". Weekly maintenance focuses on the movement and transmission system, and it is necessary to check the tightness of the dual spindle synchronous belt. If there is looseness, it should be adjusted in a timely manner to prevent transmission lag from causing coordination errors; At the same time, clean the guide rail protective cover, check the clearance between the linear guide rail slider, and ensure the accuracy of the dual axis motion. Monthly maintenance needs to go deep into the core components, including dismantling and cleaning the dual spindle tool holder, and checking the wear of the cone surface; Check the positioning accuracy of the tool changing mechanism in the tool magazine to ensure the synchronization of tool changing between the two main axes; In addition, it is necessary to calibrate the coordinate systems of the two main axes, detect the positioning error between the axes through a laser interferometer, and perform parameter compensation in a timely manner.
Long term maintenance focuses on high loss components and system performance, with a main cycle of "every six months to one year", which needs to be adjusted according to the annual operating hours of the equipment. The core content includes replacing the dual spindle bearings and lubricating grease to avoid bearing aging and vibration caused by long-term high-speed operation; Comprehensively inspect the electrical control system, check the operating parameters of servo motors and drivers, clean the dust inside the control box, and ensure stable signal transmission; At the same time, precision testing should be carried out on the basic structures such as the bed and columns. If deformation occurs, timely aging treatment or precision repair should be carried out. For equipment that processes high-strength and high hardness materials, it should be shortened to once every six months, with a focus on strengthening the inspection of spindle and guide rail wear.
It should be noted that the maintenance cycle is not a fixed standard. For equipment with high levels of dust in the processing environment and 24-hour continuous operation, the regular maintenance cycle should be shortened by 30% to 50%; For equipment with lower processing accuracy requirements and light operating loads, the cycle can be appropriately extended, but the frequency of daily inspections needs to be increased.
In summary, the maintenance of the double headed precision carving machine needs to follow the cycle logic of "daily cleaning, regular precision maintenance, and long-term service life maintenance", and dynamically optimize it in combination with actual working conditions, in order to fully utilize the core advantages of dual axis collaborative processing.