In actual CNC equipment manufacturers, many equipment users ignore the requirements of the equipment installation environment. For heavy machine tools and precision machine tools, manufacturers generally provide the user with a basic machine tool base map. , etc. The basics enter the stabilization phase before installing the machine. Heavy-duty machine tools and precision machine tools must have a stable machine tool foundation. Otherwise, machine tool accuracy cannot be adjusted. Even after the adjustment will be repeated changes. Some small and medium-sized CNC machine tools do not have special requirements for the foundation. According to the provisions of GB 50040-1996 "Design Specification for Power Machinery Basics" in China, the following work should be done: (a) General requirements 1. During the basic design, equipment manufacturers should provide the following information: (1) The model number, rotation speed, power, and specifications of the equipment are as follows. (2) The center of gravity and center of gravity of the equipment. (3) Equipment outline drawings of the base, auxiliary equipment, pipe location and pit, trench, hole size, thickness of the grouting layer, location of anchor bolts and embedded parts, etc. (4) Equipment's disturbance and disturbance torque and its direction. (5) Basic map of the base location and its adjacent buildings. (6) Geological survey data of construction sites and ground-based dynamic experimental data. 2. The equipment foundation is separated from the building foundation, superstructure and concrete floor. 3, when the pipeline and the machine connected to produce greater vibration, the connection between the pipeline and the building should take vibration isolation measures. 4. When equipment-based vibrations have adverse effects on nearby personnel, precision equipment, instrumentation, factory production and construction, isolation measures should be taken. 5. The basic equipment design must not produce harmful uneven settlement. 6. The installation of equipment anchor bolts should meet the following requirements: (1) The depth of embedment of anchor bolts with hooks should not be less than 20 times the bolt diameter, and the embedding depth of anchor bolts with anchor plates should not be less than 15 times the bolt diameter. (2) The anchor bolt axis should not be less than 4 times the bolt diameter from the base edge, and the edge margin of the reserved hole margin should not be less than 100 mm. When the requirements cannot be met, reinforcement measures should be taken. (3) The thickness of concrete under the bottom of embedded anchor bolts should not be less than 50mm. When it is a reserved hole, the net thickness of concrete under the hole bottom should not be less than 100mm. (b) The following requirements shall also be followed for CNC equipment: 1, machine tool classification can be divided according to the following principles: (1) Small and medium-sized machine tools refer to stand-alone machines weighing less than 100kN. (2) Large-scale machine tools refer to stand-alone machines weighing between 100 and 300 kN. (3) Heavy machine tools refer to stand-alone machines weighing between 300 and 1000 kN. 2. In addition to the above "general requirements", equipment manufacturers should also provide the following information when carrying out basic design of numerical control equipment: (1) The external dimensions of the machine tool. (2) When the basic tilt and deformation affect the machining accuracy of the machine tool or calculate the basic reinforcement, the distribution of the gravity of the machine tool and the machined workpiece, the movement of the machine tool or the gravity of the machined workpiece and its moving range are still needed. 2. Heavy and precision machine tools should be installed on a separate basis. 3. When performing a separate basic installation, the following specifications should be observed: (1) The base plane size must not be smaller than the outer dimensions of the machine support area, and it should meet the required dimensions for installation, adjustment and maintenance. (2) The basic concrete thickness is to be in accordance with Table 5-1 Concrete thickness of the base of metal-cutting machine tools (m) Table 5-1 Concrete Thickness of Metal Cutting Machine Foundation (m) Machine name Basic concrete thickness Horizontal lathe 0.3+0.070L Vertical lathe 0.5+0.150h Milling machine 0.2+0.150L Milling machine 0.3+0.075L Rocking bed 0.3+0.150h Planer 0.3+0.070L Internal Grinder, Centerless Grinder, Surface Grinding Machine 0.3+0.080L Rail grinding machine 0.4+0.080L Thread Grinder, Precision Cylindrical Grinder, Gear Grinding Machine 0.4+0.100L Radial Drilling Machine 0.2+0.130h Deep hole drilling machine 0.3+0.050L Coordinate boring machine 0.5+0.150L Horizontal boring machine, floor boring machine 0.3+0.120L Horizontal broaching machine 0.3+0.050L Gear processing machine 0.3+0.150L Vertical drilling machine 0.3~0.5 Shaper 0.6~1.0 Note: 1 In the table, L is the length (m) of the machine profile, and h is the height (m) of the machine tool. 2 The basic thickness in the table refers to the concrete thickness of the load-bearing part under the machine base (such as the horn, under the horn). 4. For ordinary machine tools that increase machining accuracy, the thickness of concrete in Table 5-1 can be increased by 5% to 10%. 5. For machining center series machine tools, the basic concrete thickness can be selected according to the type of the combined machine tool, and the higher precision or longer form factor can be used according to the same type of machine tool in Table 5-1. 6. When the basic tilt and deformation have an effect on the machining accuracy of the machine tool, deformation checking should be performed. When the deformation cannot meet the requirements, measures such as artificially reinforcing the foundation or increasing the foundation stiffness should be taken. 7. For machine tools with high machining accuracy and a gravity of 500 kN or more, when the foundation is built on a soft foundation, pre-compression reinforcement measures should be adopted for the foundation. The pre-compressed gravity can be 1.4-2.0 times the sum of the gravity of the machine tool and the maximum weight of the workpiece. It can be distributed according to the actual load and reach pre-compressed gravity in stages. The pre-pressing time can be determined according to the consolidation of the foundation. 8, precision machine tools should be away from the larger dynamic load machine. The foundations of large, heavy machine tools or precision machine tools should be separated from the foundation of the factory building. 9, the design of precision machine tool base can take one of the following measures: (1) Install vibration isolation trenches around the foundation. The depth of vibration isolation trenches should be the same as the base depth, and the width should be 100mm. The isolation trenches should be filled with air or sponge, latex and other materials. (2) Paste vibration-isolating materials such as foam and polystyrene around the base. (3) Separating the joints from the concrete floor around the foundation, and filling the joints with elastic materials such as asphalt and hemp. (4) When precision machining of precision machine tools is required to be high, vibration isolation measures may be taken at the base or at the bottom of the machine tool according to the environmental vibration conditions. Equipment management personnel of equipment users and personnel of related organizations should cooperate with basic designers to carry out relevant basic designs. For more detailed information on basic design of other numerical control equipment and precision equipment, please refer to GB 50040-1996 "Power Machinery Basics. "Design Code" and GB 50037-1996 "Building Ground Design Code" two national standards. In short, the equipment foundation is the basis for the good work of the equipment at the later stage and the high level of economic efficiency. The power supply is the energy support part that maintains the normal operation of the system. The direct result of its failure or failure is to cause the system to stop or destroy the entire system. In addition, part of the numerical control system's operating data, setting data and processing programs are generally stored in the RAM memory. After the system is powered off, it is maintained by the backup battery or lithium battery of the power supply. As a result, the downtime is relatively long, and plugging in and plugging in the power supply or memory may cause data loss and prevent the system from operating. At the same time, because the numerical control equipment uses a three-phase AC 380V power supply, safety is also an important part of the pre-installation work of CNC equipment. Based on the above reasons, the power supply for the numerical control equipment has the following requirements: 1. The voltage fluctuation of the power grid should be controlled between +10% and -15%, while the power supply in our country fluctuates greatly, and the quality is poor. It also hides such disturbances as high-frequency pulses, plus man-made factors (such as sudden power failures). Power off, etc.). During the peak hours of electricity, for example, during the day and one hour before work or before work, and even at night, there are often more excesses, even up to ±20%. Causes the machine to alarm and cannot perform normal work and damages the machine's power system. It even led to the loss of relevant parameter data. This phenomenon has occurred in machine tools such as CNC machining centers or turning centers, and has a high frequency of occurrence and should be taken seriously. It is recommended to configure the AC voltage regulator power supply system with automatic compensation adjustment function in the centralized workshop of the CNC machine tool; a single CNC machine tool can be independently configured with an AC voltage regulator to solve. 2. It is recommended to connect mechanical electrical equipment to a single power supply. If it is necessary to use other power sources to supply certain parts of the electrical equipment (such as electronic circuits, electromagnetic clutches), these power sources should be taken from devices (such as transformers, transducers, etc.) that are part of the mechanical electrical equipment as much as possible. For large complex machinery including many machines that work together in a coordinated manner and occupy more space, it may require more than one incoming power source, which is determined by the configuration of the site power supply. Unless the mechanical electrical equipment is directly connected to the power supply with a plug/socket, it is recommended that the power cord be connected directly to the power supply switch of the power switch. If this is not possible, set a separate terminal block for the power cord. The handle of the power cut-off switch should be easily accessible and should be installed between 0.6m and 1.9m above the easy-to-operate position. The upper limit is recommended to be 1.7m. This can quickly cut off electricity in case of an emergency, reducing losses and casualties. CNC machine tools generally use a lot of pneumatic components, so the factory should be connected to a clean, dry compressed air supply system network. Its flow and pressure should meet the requirements. The compressed air machine is installed away from the CNC machine. According to the layout of the plant and the amount of gas used, consideration should be given to installing the refrigerated air in the compressed air supply system network to such equipment as coal machines, air filters, gas storage tanks, and safety valves. Precision numerical control equipment generally has the requirements of a constant temperature environment. Only at constant temperature conditions can machine precision and machining degrees be ensured. General general-purpose numerically-controlled machine tools have no specific requirements for the room temperature, but a great deal of practice shows that when the room temperature is too high, the failure rate of the numerical control system greatly increases. Humid environment will reduce the reliability of CNC machine tools, especially in humid environment with large acid gas, which will cause printed circuit boards and connectors to rust, and electrical faults of machine tools will increase. Therefore, some users in southern China respond to the dehumidification of CNC machine tools in summer and rainy seasons. 1, the working environment temperature should be between 0 ~ 35 °C, to avoid direct sunlight on the CNC machine tools, the interior should be equipped with a good lighting equipment. 2. In order to improve the precision of the machined parts and reduce the thermal deformation of the machine tool, if conditions permit, the CNC machine tools can be installed in a relatively closed building equipped with air-conditioning equipment. 3, the relative humidity of the working environment should be less than 75%. CNC machine tools should be installed in a place away from liquid splashing and prevent drip leakage from the factory. 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First, the numerical control equipment requirements for the foundation