Hardware tool technology becomes an important factor in the development of multi-function machine tools (2)

James Grimes said, “So we put three different drills into a mini turret, so users can do continuous operations, such as finishing, drilling and threading, without going back to the magazine. To get another tool. Therefore, only 0.2s of indexing time is needed instead of 1.5~2s of tool change time.” GeraldOwen said, “mini turret tool holder” is also used to process hard workpiece materials. Multi-faceted inserts are required for indexing. He recalled: "We have a customer who knows that the life of each cutting edge is 525mm when they process the Inconel-718 spindle for a 1 to 2m long aero engine. But by using the 3-seat 'mini' After the turret tool holder', they were able to turn faster and transposition to a new blade via the 'mini turret tool holder' and then re-cut."

The versatile tools for multi-function machines look very sensitive, and Mazak has developed a new tool holder that can be fixed and rotated in different insertions. MichaelFinn explains, “The Flash tool holder features a static insertion triangle turning tool, an 80 degree diamond turning tool and a 55 degree diamond turning tool. Static positioning enables standard machining of the outer and inner bore roughing and finishing, reaming And thread cutting. When working, the machine determines the machining direction of the tool. It can also be used in milling and drilling.

GregoryHyatt believes that the design of multi-function tools is more unique than FlashTool tools, so in the future it will make a lot of work. He said: "In the future, we will see that the application of multi-tools will be the same as other new tools. We hope to introduce some new products within 6 months, and machine tool manufacturers have not expected these new products to be no longer machine tools. The toolbox is just outside. Therefore, we will work with them and some CAD/CAM suppliers to support the introduction of this new tool. The man-machine dialogue operation program typical of these machines makes this new tool even more supportive. design".

Bob Goulding, product manager at SecoCarboloy, believes that the application of ultrasound is very powerful. He said: "We have several patents that are being patented. These tools can be used for fixed operation and rotary operation, so we can see the use of these tools. The development prospects of machine tools, customers require flexible processing, which is determined by both the tool and the machine itself."

Gerald Owen of Mori Seiki Co., Ltd. pointed out that users also want to use existing tools to meet the requirements of multi-function machine tools and shorten the tool change time. He said that many companies using combined machine tools do this by using a boring bit, two 80° diamond blades or two triangular blades, as these tool rotations can be reversed from the spindle rotation. Other tools are set before or after boring using the same chuck head. On multi-function machines, the tool change time can be reduced if the tool is used effectively. For other types of machining, both new and new technologies can be applied to these machines.

The development of turning tools used on multi-function machines is very special and has attracted wide attention. Sandvik has developed a four-cutter-cylinder carbide end mill to improve the machining accuracy of the machined surface. In cylindrical milling applications, the machine's C-axis rotation reduces tool pressure. James Grimes said: "We use two of these chip-cutting carbide end mills to form a very small 1.5° angle between the two chip flutes." He explained, "The other two chip flutes can be centered and cut, then Some return from the cutting edge. Therefore only two chip flutes have surface contact and only have contact on the sides of the two chip flutes.

These two sharp chip flutes are like two sharp slides that increase the precision of the machined surface. The bottom of the other two chip flutes does not touch, which relieves the tool pressure, so for a four chip flute cutter, there are only two chips. The trough really participated in the face contact. ”

Mazak's Michael Finn said, “These 5-axis machines, which can position the tool in different ways, mean that it can be machined in more ways.” Another example of machine tool expansion is called steering by Michael Finn. End milling machine. He said: "We replaced the outer diameter of the workpiece with a face milling cutter instead of a static tool. The result took a long time and the chips were strip-shaped." He explained, "The workpiece is rotated first in one direction. The end mill spindle is then rotated in the opposite direction. This rotary cutter ruptures the chips that were originally deposited around. Mazak has also developed a polishing operation that utilizes the principle of reverse motion of the spindle, with various polishing wheels operating through the rotation of a 4140 steel for electrical applications.

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