3. Smart processing system
If the vision of a green eco-machine tool is environmentally friendly, then the goal of a smart machine tool is user-friendliness. The meaning of “user friendly†is to greatly improve work efficiency and work more comfortable and safe. This requires the machine tool to manage itself, automatically identify the processing tasks and processing status, with little or no manual intervention, and can communicate with the operator in a timely manner, become "smart" and open up a new era of CNC machine tools.
Machine tools inevitably produce various errors during the machining process, and modern monitoring and compensation techniques are needed to further improve the performance and communication capabilities of the machine. In 2005, the National Institute of Standards and Technology proposed a research program for the Smart Machining System.
The five goals of a smart processing system are:
1) System dynamic optimization. The relevant process and equipment knowledge are integrated to model and optimize the dynamic performance of the system.
2) Device characterization. Develop characterization methods, models and standards, and measure and communicate machine performance under operating conditions.
3) Adopt the next generation CNC system. Interfaces and data formats compatible with STEP-NC enable seamless operation of CAD-based machine controls.
4) Condition monitoring and reliability, development of measurement, sensing and analysis methods.
5) A method of directly measuring tool wear and workpiece accuracy during machining.
The essence of smart processing systems is the intelligence and networking of manufacturing systems.
3.1 Advanced Process Control System
The essence of the Advanced Process System is to monitor the working state of the electric spindle. Because the electric spindle is the heart of a CNC machine, its state is directly related to machining accuracy and machining efficiency. The principle is that an acceleration sensor is installed near the front end bearing in the electric spindle housing, so that the vibration generated during the milling process can be displayed in the form of an acceleration "g load" value.
3.2 Intelligent temperature control system
Thermal deformation of machine tools is one of the main factors affecting machining accuracy. There are many factors that cause thermal deformation, mainly from the working environment of the machine tool and the thermal effects inside the machine tool:
1) Environmental impact. Such as temperature distribution and temperature changes in the workshop and air convection; the effects of heat sources such as daylight, heating and adjacent machine tools; and heat transfer from machine tool foundations.
2) The internal influence of the machine tool. Such as the heat of the machine parts (bearings, Screws, guides, motors, gears, hydraulic systems, etc.), the heat generated by the cutting process and the heating of the cooling system.
The above thermal influence is a complex heat input to the machine tool structure. It changes with time and machine working state, and is unpredictable. The size and location of the thermal deformation of the machine tool ultimately depend on the thermal properties of the machine structure material. , that is, the thermal expansion coefficient, thermal conductivity and heat capacity of the material and the structural design of the machine tool, ie the shape, quality and distribution of the heat source.
4. e-machine tool
When machining complex 3D contours at high speeds, it is often encountered how to optimize the three interrelated values: speed, accuracy and surface finish. For example, when roughing a mold, the speed should first be considered; when finishing a small precision electrode, accuracy is the most important; while in the case of finishing the mold, the pursuit is the surface finish. How to properly configure and optimize the performance of the machine to achieve the goal in different situations is a complicated problem. Because it involves hundreds of CNC parameters, such as motion control algorithms, servo loop gain, feedforward, smoothing filters, and so on.
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Screws
The product range of Hongchuang hardware fasteners includes hexagon head screws, full thread and half thread hexagon socket head cap screws, hexagon wood screws, hexagon socket head cap screws, full thread and half thread hexagon socket countersunk head screws, hexagon socket head flange screws, set screws, etc. We provide products conforming to DIN, ANSI and JIS standards.
Stainless steel of grade 304 contains nickel of 8% and chromium of 18% and is the most commonly used grade for the production of fasteners. It possesses an excellent combination of strength, corrosion resistance and fabricability. Fasteners of this grade are being extensively used today in almost every industry.
Metal Screw,Self Tapping Screws,Stainless Steel Screws,Steel Screws
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