Company News

• Is the angle of ISO toolholder the same as that of BT toolholder

  2020 / 10 / 12

  1. ISO toolholder standard refers to the standard formulated by the international organization for Standardization (ISO). In October 1946, leaders from 25 national standardization organizations met in London to discuss the establishment of an international organization for standardization. They called the New Organization ISO, the abbreviation of international organization for standardization. The meeting unanimously adopted the ISO constitution and rules of procedure. On February 23, 1947, ISO began to operate. Its central office is located in Geneva, Switzerland. China is both the sponsor and the first member country. 2. BT toolholder: taper handle for machining center machine tool (with manipulator clamping groove) manufactured by Japanese standard mas403; ST refers to taper handle handle for CNC machine tool manufactured according to gb3837 (without manipulator clamping groove). The angles of ISO toolholder and BT toolholder are different. There are also professional machine tools and customized toolholder angles. The following is a comparison diagram of taper shank specifications and dimensions between ISO toolholder and BT toolholder.

• There are so many types of toolholder, which one is easy to use

  2020 / 09 / 25

  As we all know, the toolholder is a spindle for connecting tools, so it is a very important part. For different tool types, the tool holder model is also different. There are many types of toolholders. At present, the main standards include several types of toolholder, such as BT, SK, capto, BBT, HSK, etc. BT and BBT are Japanese standards, and now they are also a standard spindle commonly used. SK is the standard spindle in Germany. BT, SK is a simple, popular spindle connection standard, widely used in mold industry, high-speed engraving machine and other fields. HSK type is the spindle standard for the later high-speed requirements. It can be processed normally under the condition of 340000 rpm, providing working guarantee for high-precision workpieces. Traditional toolholders include Er type, powerful type, side fixed type, plane milling cutter type, drill chuck and Morse taper shank, while modern ones are hydraulic, thermal expansion and cold pressing. Now let's introduce the application and characteristics of different types of toolholders. HSK type, HSK tool system is a new type of tool holder with short cone shape. Its interface adopts the way of positioning the conical surface and the end face at the same time. The handle of the knife is hollow, the length of the vertebral body is short, and the taper is 1 / 10, which is conducive to the realization of light and high-speed tool change. Due to the use of hollow vertebral body and end face positioning, the radial deformation difference between the spindle hole and the tool handle during high-speed machining is compensated, and the axial positioning error is completely eliminated, which makes the high-speed and high-precision machining possible. The handle of this kind of cutter is more and more widely used in high-speed machining ce

• Do you know the application and product characteristics of high speed toolholder

  2020 / 09 / 17

  Facing the challenge of flexible and efficient production in modern manufacturing industry, the increasingly fierce market competition and the pressure of reducing manufacturing cost, high-speed machining has become the key point to enhance the competitiveness of manufacturing industry. High speed machining is different from traditional machining. In contrast, the high-speed machining spindle speed is high, the cutting feed speed is high, and the cutting amount is small, but the material removal amount per unit time is increased by 3-6 times. With high efficiency, high precision and high surface quality as its basic characteristics, it has been more and more widely used in automobile industry, aerospace, mold manufacturing, electronic industry and instrument industry, and is an important part of modern advanced manufacturing technology. High speed cutting technology can effectively shorten the production cycle and reduce the processing cost. However, in the actual processing, sometimes its processing effect does not reach the expected goal. Of course, there are many reasons, but one of the key factors is that the tool holder matching with the high-speed spindle is not correctly selected. If the high-speed operation of the machine tool spindle does not have the appropriate tool holder, not only can not achieve the expected performance, but also may damage the precision bearing of the machine tool spindle and reduce the service life of the machine tool. If you want to ensure satisfactory machining accuracy in high-speed machining, you have to choose the appropriate tool holder, which often fails to attract people's attention. However, as an important tool holder connecting the machine tool spindle and cutting tool, whether the manufactured parts meet the requirements of relevant standards or become defective products, whether the cutting tools used wil