Machine tools should pay attention to the reasonable addition of damping to improve dynamic stiffness. There are many ways to increase machine tool damping, such as adding a layer of high internal resistance viscoelastic material—such as asphalt-based polymers and paint soaps—to the outer wall of the machine tool; embedding viscoelastic damping materials into the structure of linear modules; retaining molding sand inside the casting or sealing special fine iron shot inside the casting. The movement and positioning of the robot's seventh bearing manipulator trolley in the linear direction can be directly modified through the operation panel and display screen. Theoretically, within the effective stroke range of the linear axis, countless positioning points can be set. Position accuracy is accurately detected by the encoder, and the servo electric cylinder is controlled by the servo system to ensure that the repeatability of positioning is within a certain range. The moving speed can be arbitrarily set according to the operation requirements within the specified range.
The use of linear rolling guides significantly improves machine tool productivity, reducing the number of repairs throughout its useful life and enabling continuous operation. When designing and manufacturing machine tools, the following issues need attention: Machine tools with high vibration resistance are prone to vibration, especially those using linear motors and linear rolling guides. The high-speed forward and backward movement of moving parts causes significant impact on the machine bed. This problem in gantry robots may be caused by damaged or dull tool tips, or resonance in the gantry robot, or uneven placement, leading to slight errors in the machining process. The solution is to remove the worn or damaged dull parts of the tool and select a better tool for re-tooling. When the gantry robot resonates or is unevenly placed, it needs to be leveled, secured with a miniature electric steel, and stabilized. Expanding Common Sense: Several points should be noted when using linear guides on machine tools. To meet the high demands of industrialization on the machine tool industry, linear guides and other rotating element guidance systems are increasingly being adopted. Single-axis robots have significantly improved the traditional rapid forward and backward speed of a few meters per minute to tens of meters per minute. The phase lights of the gantry robot's driver are normal, but the dimensions of the machined workpieces vary. This problem occurs because the machine tool slide rotates at high speed for extended periods, causing errors in the repeatability of the orthogonal robot's tool post over long-term use. The slide returns accurately to the starting point each time, but the dimensions of the machined workpiece still change. This phenomenon is generally caused by the spindle; the high-speed rotation of the spindle causes severe bearing wear, leading to changes in the machining dimensions.
