Rotary file and method for manufacturing same
A technology of rotary files and flexible shafts, which is applied in the direction of filing/filing tools, manufacturing tools, metal processing equipment, etc., which can solve the problems of poor cooling effect, reduced work efficiency, and reduced service life of the device, so as to solve cooling problems, The effect of improving service life and improving work efficiency
Active Publication Date: 2013-02-06
SUHNER SUZHOU IND TECH
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Problems solved by technology
During the long-term milling process of metal milling cutter, the cutting edge will harden and reduce the chip efficiency until it cannot be used
The cooling of the existing structural devices basically relies on air cooling or natural cooling, which not only has poor cooling effect and reduces the service life of the device, but also needs to stop running after working for a period of time, and cannot operate continuously, reducing work efficiency
Method used
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Embodiment 1
[0025] A kind of rotary file of the present embodiment, such as Figure 1~Figure 3 As shown, it includes a rotary burr head 1 and a hollow flexible shaft 2. The rotary burr head 1 is a cylindrical, conical, elliptical or other structure capable of drilling the accommodating cavity 3, preferably a conical shape. The bottom of the rotary file head 1 is provided with an accommodating cavity 3 along the central axis. The diameter of the accommodating cavity 3 is consistent with the outer diameter of the hollow flexible shaft 2. One end of the hollow flexible shaft 2 is tightly connected with the accommodating cavity 3. One end is connected to the cooling medium source; the end of the rotary burr head 1 is provided with four small holes 4 , and the small holes 4 are connected to the hollow structure of the hollow flexible shaft 2 . The hollow flexible shaft 2 includes at least 2 layers of steel wire winding layers, and each layer of steel wire winding layers is formed by winding 4...
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The invention discloses a rotary file which comprises a rotary file head and a hollow flexible shaft. An accommodating cavity is arranged at the bottom of the rotary file head along the axis direction of the rotary file head, the diameter of the accommodating cavity is consistent with the outer diameter of the hollow flexible shaft, one end of the hollow flexible shaft is connected with the accommodating cavity in a close fit manner, and the other end of the hollow flexible shaft is communicated with a cooling medium source. A plurality of small holes are arranged at an end of the rotary file head and are communicated with a hollow structure of the hollow flexible shaft in a connected manner. Cooling media are transmitted to the rotary file head via the hollow flexible shaft, so that the rotary file head is effectively cooled down, the rotary file can continuously work for a long time, the service life of the rotary file is prolonged, and the work efficiency is improved.
Description
technical field [0001] The invention relates to a filing tool, in particular to a rotary file connected with a flexible shaft and a preparation method thereof. Background technique [0002] At present, rotary files are widely used, such as engraving pens, small hand-held rotary files, etc. Due to their special purposes, flexible shaft drives or pneumatic drives are often used. The general rotary file is mostly made of hard alloy with a rigid shaft handle, such as the Chinese patent CN2125472U, the flexible shaft machine or the pneumatic motor has a special chuck to clamp the rotary file shaft handle to complete the connection. This type of tool is generally used for tool work The time is relatively long, and the heat dissipation effect is not good, such as deep hole filing. During the milling process of metal milling cutter for a long time, the cutting edge will harden and reduce the chip efficiency until it cannot be used. The cooling of existing structural devices is bas...
Claims
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IPC IPC(8): B23D71/00
Inventor 何源王早霞井洪静宋平
Owner SUHNER SUZHOU IND TECH