There is no official publicly available data on the production and demand scale of NC tool grinding machines, but the data of the “Other Grinding Machines†item in the Mechanical Statistics of the Ministry of Economy, Trade and Industry of Japan can be used as a reference. According to this statistic, the production of tool grinding machines in 2005 was 1,462 units, an increase of 39.8% over the previous year; sales reached 35.718 billion yen, an increase of 50.6% over the previous year. The reason for the increase is the booming production activity in the automotive industry, which has the largest tool consumption in the past two years. In addition, as crude oil prices have risen sharply and tool prices have increased, so there is a surge in demand for tool regrind.
(2) Seeking stable high precision
In recent years, in order to reduce production costs, in addition to tool factories, other mold production plants, mechanical parts processing plants, etc. are also pursuing the stability of high-precision machining. Most auto parts manufacturers are large tool consumers. They need to have re-grinding equipment to ensure the recycling of tools in their own company. Some users also use tool grinders with 6-to-7-axis multi-coordinate grinding function as cars. Precision machining machine for precision machine parts.
The accuracy of the cutting edge of the tool has a direct and significant impact on the quality of the cutting. Therefore, each tool grinder manufacturer develops advanced technologies such as high-rigidity bed, automatic adjustment of the grinding wheel, finishing and grinding device, and grinding wheel cooling device to achieve achievable Stable high precision machining tool grinder. In addition, in order to simplify complex machining procedures, many tool grinders use processing software that can be input through a human-machine dialog of a PC and that manages the machined blade with a blade identifier.
(3) Increased demand for small diameter tools
The grinding wheel shaft grinding head and column of the tool grinding machine produced by Makino FRAISE Precision Machine Co., Ltd. adopt low-expansion coefficient castings, which can effectively suppress thermal deformation, and its automatic program function has good expansion. The company's tool grinding machines for polishing grade carbide drills and long drills are highly technical, with orders in 2005 increasing by 20% over the previous year. In the future, with the miniaturization and high precision of molds, tool grinding machines for small-diameter tools, CBN and PCD drill grinding will continue to increase. In terms of technology development, the use of direct drive spindles and linear axis linear motors will increase.
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