The application of precision grinding machines in mechanical processing is already very extensive, and almost everything related to precision parts cannot be separated from precision grinding machines. Especially in the industry, CNC grinding machines have broken the international level of grinding machine technology and created a good new situation for mechanical processing. With the maturity of CNC grinding technology, four axis CNC grinding machines have gradually been successfully developed and introduced to the market.
The four axis CNC precision grinder can be used for precision machining of hard and brittle materials such as ceramics and glass products, and the machining accuracy has been improved from the original 0.001mm or more to 0.0001mm, reaching a level of about 1/1000 of the diameter of a hair. This technology fills the technical gap of domestic grinders and breaks the blockade of international technology on China's technology.
At present, China needs to import about 300 optical profile grinders and various multifunctional precision surface grinders every year, each priced at hundreds of thousands of dollars and with a processing accuracy of over 0.0001. Internationally, there is an embargo on China.
This equipment is also a machine tool with functions such as rough grinding, fine grinding, grinding and polishing composite processing, and can achieve precision machining processes of grinding, polishing and in-situ detection on the same machine tool, greatly improving the manufacturing level of high-precision ceramic products, optoelectronic components, textile machinery, molds and other industries.
Precision grinding is an effective machining method that solves various problems such as high dimensional accuracy, high surface quality, and high shape accuracy, and it can greatly improve the machining efficiency of parts. For difficult to cut materials such as black metals, brittle materials, and high hardness materials (optical glass, structural ceramics, optical crystals, microcrystalline glass, semiconductors), precision grinding, polishing, and other methods must be used for processing. The machining accuracy of workpieces mainly depends on the precision of the machine tool, the machining process and method used.
Therefore, the development goal of this project is a four axis CNC precision grinder and its key technologies. The machine tool adopts precision track technology, high-precision detection feedback and control technology, which can achieve precision machining of hard and brittle materials for flat, spherical and non spherical workpieces. It has functions such as rough grinding and fine grinding, with a machining range of 800mm × 600mm and a machining shape accuracy of 2 μ m (± 1 μ m)/200 × 200mm; The three-axis control accuracy of xyz is 0.1 μ m. Simultaneously develop supporting devices and technologies related to precision grinding, including detection, monitoring, computer-aided manufacturing software, etc.
Four axis precision grinding machines are widely used for precision grinding, machining, and testing evaluation of difficult to cut materials such as optical glass, ceramics, semiconductors, and molds. They can promote the development of products towards high-tech, high-precision, high-quality, and high added value directions, and have wide applications in industries such as optoelectronic material processing, mechanical electronics, automotive, aerospace, and mold manufacturing.