Abrasive belt grinding is based on abrasive belts and is supplemented by contact wheel (or pressure plate), tensioning wheel, drive wheel and other grinding head body, as well as tensioning quick change mechanism, deflection mechanism, anti-absorption (dust) The functional components such as the device work together to complete the machining process of the workpiece. Specifically, the belt is placed on the outer surface of the driving wheel and the tensioning wheel, and the belt is tensioned and operated at high speed. The workpiece is ground or polished according to the shape and processing requirements of the workpiece with corresponding contact and appropriate grinding parameters. ,.
Abrasive belt grinding features:
1 Abrasive belt grinding is an elastic grinding, so belt grinding is a composite machining process with various functions of grinding, grinding and polishing.
2 The abrasive grain on the abrasive belt has stronger cutting ability than the abrasive wheel abrasive grain, so the abrasive belt grinding efficiency is very high.
3 The grinding speed is stable. Since the contact wheel is not worn, the belt can move to maintain a constant speed, and it does not wear the smaller the diameter as the grinding wheel.
4 Abrasive belt grinding precision is high. Due to the quality of the belt making and the production level of the belt grinding machine, the belt grinding has already entered the ranks of precision and ultra-precision machining.
5 Abrasive belt grinding costs are low. This is mainly manifested in:
(1) Compared with the grinding wheel grinding machine, the belt grinding machine has a simple structure and a short transmission chain. This is mainly because the abrasive belt is light in weight, the grinding force is small, the vibration during the grinding process is small, and the rigidity and strength requirements of the machine tool are much lower than the grinding wheel grinding machine.
(2) Abrasive belt grinding is easy to operate and has less auxiliary time. Whether manual or motorized belt grinding, it is easy to operate. From the replacement of the adjustment belt to the clamping of the workpiece being processed, this can be done in a very short time.
(3) Abrasive belt grinding ratio is large, machine tool power utilization is high, and cutting efficiency is high. This results in reduced tool and energy costs for cutting the same weight or volume of material and takes less time.
6 Abrasive belt grinding is safe and reliable, with low noise and dust, easy to control and good environmental benefits. Since the belt itself is very light in weight, there is no danger of injury even if it breaks. Abrasive belt grinding is not as serious as sand removal. Especially in dry grinding, the grinding debris constitutes the material of the workpiece to be processed, and it is easy to recycle and control the dust. Due to the use of the rubber contact wheel, the abrasive belt grinding does not form a rigid impact on the workpiece like the grinding wheel, so the machining noise is small.
7 Abrasive belt grinding process is flexible and adaptable. This is manifested in:
(1) Abrasive belt grinding can be easily used for grinding of flat, inner and outer circles and complex curved surfaces. Designing a belt grinding head device as a functional component can be mounted on a lathe for rear grinding, or it can be mounted on a planer, and can also be designed into various special grinding machines. This feature of abrasive belt grinding makes it easy to solve difficult-to-machine parts such as ultra-long, oversized shafts and precision machining of flat parts.
(2) The base material, abrasive and binder of the abrasive belt have a wide selection range and can meet the needs of various uses. The size, length and width of the belt are also available in a variety of sizes, and are available in rolls, rings and many other forms. For the same workpiece, abrasive belt grinding can be processed using a variety of different grinding methods and process configurations.
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