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At present, the tool grinding machines used in tool manufacturing are mainly divided into two categories. One is the imported five-axis and six-axis linkage CNC tool grinding machines. The main brands are ROLLOMATIC, Schlieberg, EWAG, AGTHON, WALTER, WENDT, Shute, Sa International brands such as gram, ANCA, Dirk, TTB; the first category is simple manual multi-purpose special grinding machines at home and abroad, the main brands are Demingna, Beiping Machine Tool, Nanjing Weigao and so on. CNC tool grinding machines are generally designed with advanced modules such as the world's advanced data electrical control software system, precision guide rail and screw motion system, precision grating and servo motor feedback positioning system. Therefore, these CNC tool grinding machines have high precision grinding motion control. Technology, CNC tool grinding machines are equipped with powerful 3D machining simulation software, users can simulate the shape of the tool you want to machine online according to your tool structure and parameter design requirements. The manual special tool grinding machine is characterized by simple structure and convenient operation, and is mainly applied to the production of non-standard special tools and manual tool grinding.
The grinding performance characteristics of various tool grinding machines provide a good choice for tool manufacturers. Users can choose the right tool grinding machine according to their product processing characteristics and production scale. The continuous innovation of grinding tools and control functions of various tool grinding machines has promoted the continuous advancement of tool grinding technology, providing a guarantee for complex blade structure design and geometric size control. However, the current threshold for the manufacture of cemented carbide tools has been continuously reduced, which has promoted the continuous expansion of the tool manufacturing industry, accelerated the market competition in the tool industry, and also contributed to the continuous reduction in the production cost and sales price of precision carbide tools. As the cost-effectiveness of precision carbide tools will continue to replace high-speed steel and carbide welding tools in the tool market, the market demand for precision carbide tools and their use of the market will continue to increase, while precision carbide The extensive use of tools will bring rapid progress and development to China's processing industry.
There are two main ways to grind the tool: one is the ordinary tool that has low requirements on the dimensional accuracy and the shape of the blade is simple. The user manually grinds the edge by the ordinary tool grinder. This kind of grinding method is characterized by the master of the grinding. High requirements, must have a certain knowledge of the tool, the tool after grinding can only be used for roughing; first, the precision overall tool with complex shape and high dimensional requirements, the user usually commissions the used tool to the tool manufacturer or local The tool professional grinding factory re-grinds the grinding process. The grinding process is characterized by software program editing and precise positioning of the probe. It is completely polished according to the original tool design parameters and geometric angle. The performance and life of the tool can reach more than 90% of the new knife. The user can select the above two methods to repair and rework the tool according to the different requirements of the use, which can save the use of the hard alloy raw materials and reduce the use cost of the tool. Therefore, the grinding and reworking of the tool is both economical and environmentally valuable with both economic and environmental benefits.
As product competition continues to intensify, tool users have demanded tool manufacturers for stable tool performance, long life, low price, and fast delivery. Tool manufacturers have the following tools for tool grinding machines based on tool product structure and customer requirements. Several requirements:
The machine tool is simple in operation and short in tuning time. It can realize software online 3D simulation processing, reduce the technical requirements of operators, thereby reducing labor costs and improving labor efficiency. The product has high dimensional accuracy, high batch processing repeat precision, and is suitable for large-scale high. The need for precision automated production; freely programmable for the development of complex non-standard shaped tools to meet the special needs of customers; high grinding efficiency, short processing time per piece, reduced machine occupation time, reduced production costs, shortened delivery Delivery time; equipment is cheap, running support costs are low, reducing the proportion of equipment in total tool production costs; low failure rate, avoiding unnecessary abnormal shutdown and maintenance.
Tool development puts new demands on tool grinding machines
Most ordinary high-speed steel tools and ordinary welded carbide tools can not meet the requirements of modern processing technology, and are gradually replaced by precision carbide alloy tools and various CNC indexable tools, precision carbide tools and high-speed steel. Tool and common welding tools have great differences in machine tool performance requirements in the machining and grinding process. The introduction of high-precision CNC multi-axis linkage tool grinding machine and the continuous development of machine tool grinding function and performance meet the requirements of cemented carbide tools. High-volume multi-variety high-precision grinding process requirements, all brands of CNC tool grinding machines generally have powerful CNC software simulation editing and high-precision mechanical motion grinding control system, according to the user's product processing needs, different brands of tool grinding machines It has its own unique advantages: some are suitable for large-scale precision machining of small and medium-sized tools, some are suitable for small-scale high-precision machining, some are suitable for large-diameter high-efficiency and high-precision machining, and some are suitable for processing non-standard tools, some are adjusted. High machine efficiency for multi-size and small batch processing, and some suitable for ultra-long cutting tool Wait.