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Choose the right holder is the key to cost control - Chuck - Machine Tool Industry

As the different tool clamping methods, dimensional accuracy, surface quality, setup time and tool wear a lot of factors will be affected. So Chuck On the workpiece quality and processing costs have a direct impact.

In machining, cutting tools and machine tool holder is the key interfaces between. In all processing situations, whether chosen the right shank will affect a number of factors, such as: dimensional accuracy, surface quality, setup time and tool wear, which ultimately affect the workpiece quality and cost.

Figure 1 as a key between the tool and machine tool interface, tool holders affect the quality of workpiece

Process as there are different occasions, the market also does not have a knife handle can be applied to all processing needs. Thus, with the processing technology, SCHUNK has developed the company 30 years, five different high-precision knife handle system. With these sets of tool holders, a variety of cutting tasks can meet user demand. Its application to industry, from electronics, watch industry, micro-fabrication to Metal Cutting High-speed machining (HPC / HSC) full range; both high-value high-precision tool holders, but also inexpensive and suitable for processing a large amount of cutting tool holders.

Clamping rotary accuracy determined by the dimensional accuracy of workpiece

Precision knife handle, such as TENDO static expansive stress locking handle and TRIBOS addition to manufacturing high-style tool holder structure size guarantees, after a series of dynamic balance were calibrated to achieve high clamping turning precision. With the characteristics of the workpiece can not only enhance the quality, but also greatly reduces processing costs. Thus the cost of processing costs significantly lower than traditional processing costs, because the use of precision tool holders extended tool life. Compared with the traditional spring holder, TENDO Static Expansion clamp technique (Figure 2) and TRIBOS stress locking clamping technique (Figure 3) only one, because it reduces tool wear can cost as much as 27% .

Figure 2 Tendo Tool Static Expansion Chuck Shows excellent clamping

Turning precision and high accuracy and repeatable excellent vibration damping

Fig.3 Tribos stress locking clamp technique, the holder of flexibility through the hole clamping

Deformation of clamping tools, their different structural characteristics, can clamp the tool from 0.3 ~ 32mm

SCHUNK's precision tool holder clamping system with high rotation accuracy, users can use when processing the workpiece and to achieve high accuracy dimensional accuracy. Although, heat shrink tool holder, and high-precision tool holders in the spring when the factory can achieve high precision clamping rotation, but the different clamping technology is still different. Experiments show that: Shrink Fit Chuck because of its material under the influence of the thermal expansion will gradually lose their grip precision; and rely on static pressure oil chamber or room temperature deformation TENDO clamping stress and deformation of material in a number change tool holder TRIBOS after can still maintain a radial rotating beats no more than 0.003mm.

In vibration damping, SCHUNK the holder system reflects the values are very wide adaptability. One TENDO Static Expansion Holder and TRIBOS-R type stress locking type shank in particular. TENDO Static Expansion Holder symmetrical structure of the oil chamber through the inner wall of the clamping tool, through the use of a hex wrench to tighten bolts pressure, the pressure uniformly to convey to every part of the oil chamber. Cavity wall and the oil pressure evenly to the axis of symmetry expansion, thereby clamping tool. With the clamp and release time, compression bolts are fixed to achieve the same position, to protect the repeat clamping accuracy. As the oil damping vibration damping than steel, so TENDO holder also has a very high damping. Similarly, TRIBOS-R-type stress locking type shank with cavity filled with plastic damping material, also have a similar damping characteristics to achieve the effect of a very quiet process. SINO Universal Holder with a plastic material for lining, and thus have similar benefits.

Experiments show that if the user selected the clamp with vibration damping technology, the investment is worth it. As the damping effect, the state improved cutting tool, cutting tools are well protected, to extend its service life. As shown in the experiments, due to vibration improved tool life may be extended up to 47% (Figure 4). At the same time, the user can also get a better workpiece surface quality.

Figure 4 shank of the vibration damping characteristics of the life of the tool to bring

Decisive. Tests show that the static pressure-expansion Tendo

Tool chuck, the tool life can be extended up to 47%

Holder with vibration damping characteristics Another advantage is its main axis of the device. If the weak damping of vibration will be directly transmitted to the spindle; the hilt with the vibration damping characteristics will play a buffer role. This will protect the spindle and the equipment more expensive components, but also extend spindle life.

Large cutting capacity in the completion of the cutting task, the higher will be the role of radial force to the handle. If you want to achieve in a short period of time if a larger cutting capacity, recommended to withstand such a radial force system. SINO-R Powerful tool holders, TRIBOS-R-type tool holder and shank CELCIO shrink technology are a good choice. These types of tool holders systems possess a high radial stiffness, in the case of large cutting capacity can be smoothly processed. The first two systems also have excellent vibration damping characteristics.

Tool changing faster setup time shorter

Need for tools to dress up regular clients, in selecting the right dress up time when the holder has an important effect. TENDO SINO Universal hydraulic tool holder and shank just a simple hex wrench or crescent wrench, the tool can be in the 30s in a replacement. No need to use their peripheral equipment, not only dress up a short time, and without additional cost. The shrink-style tool holder to replace the need for specialized devices shrink, the procurement price of approximately EUR 10,000. Clamping technology compared to other tool holders, heat shrink tool holder longest time, including cooling heat holder, including setup time required 10min. In many dress up the process, which is very unfavorable.

In processing the smaller or the angle the greater the workpiece, the shank of the form factor more important. Especially in the narrow space for the cutting operation, the lanky TRIBOS-S or long shank of TENDO-LSS is very applicable. Meanwhile, the two devices are also suitable for high speed machining areas. Which, TRIBOS-SVL holder extension rod (Figure 5) can also be combined with a different holder to complete the above is hard to
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