TWM594531U - Parabolic cutter structure - Google Patents

Abstract

The present invention provides a parabolic cutter structure, which is mainly composed of a shank and a cutter head. In particular, at least two rows of chip grooves are recessed on the virtual circumferential line of the cutter head to form an end edge and match the arc-shaped parabolic side The design of the blade effectively prevents improper collision at the back edge, which makes it easy to evacuate chips during cutting, does not cause blockage, and has good heat dissipation temperature. The reason why the blade is made of arc parabola is to use the principle of arc parabola to divide the pressure evenly , Effectively disperse the cutting resistance of the blade and improve the cutting rate of the cutting blade, thereby improving the use efficiency and service life of the blade.

Description

Parabolic cutter structure

The new type relates to the structure of a cutting blade, especially a parabolic cutting blade structure.

In today's wood products processing and production, TCT tungsten steel cutter is one of the widely used cutter products. The existing TCT tungsten steel cutter structure is composed of a cutter head and a handle. When the rear end of the cutter head is connected to the handle, put the handle into the chuck. Because the outer diameter of the rear end of the cutter head is smaller than the outer diameter of the handle , Make the rear end of the cutter head contact with the front end of the shank to support the function of fixing the cutter structure; when in use, make the cutter structure rotate at a certain speed, and move towards the wood block to cut grooves of various shapes.

The existing cutting blade structure needs to discharge the wood chips immediately due to the large amount of cutting, otherwise the accumulated wood chips will cause local temperature rise and repeated chip problems. Once the wood chips are blocked, the cutting operation cannot be continued, and the processing must be temporarily suspended , The cutting tool is replaced again, which results in a significant reduction in processing efficiency and increases the processing cost. Moreover, the existing cutting blade structure is not the best design, but in use it causes the blade to easily collapse, resulting in the shortcoming of continuous feed, Therefore, its service life will also be reduced.

The purpose of the present invention is to provide a parabolic cutting blade structure, which mainly prevents the temperature from overheating and improves the amount of chip removal, and the reason why the blade is made parabolic is to use the arc-type principle of even pressure distribution to effectively disperse the blade Cutting resistance, thereby improving the use efficiency and service life of the blade.

The reason is that, in order to achieve the foregoing objective, a parabolic cutter structure provided according to the present invention includes:

A cutter handle; and a cutter head, integrally formed at one end of the cutter handle, and having a virtual circumferential line; characterized in that, the virtual circumferential line of the cutter head is concavely provided with a chip discharge groove to form an end edge and a circular arc parabola Each of the chip flutes has a straight surface extending toward the tool shank, and an arc surface connecting the straight surface and extending toward the tool shank, each of the end blades has a slope connecting the arc surface, and a connection The rear inclined surface and the straight front inclined surface.

Preferably, the tool handle is a cylindrical body with a uniform outer diameter.

Preferably, there is a connecting section between the shank and the cutter head, and the connecting section is gradually reduced from the shank to the cutter head and then connected together as one.

Preferably, there are three at least two chip grooves.

In this way, the present invention provides a parabolic cutter structure, which is mainly composed of a tool holder and a cutter head. In particular, a chip removal groove is recessed on the virtual circumferential line of the cutter head to form an end edge and match with an arc-shaped parabola The design of the side blades, each of the chip discharge grooves has a straight surface extending toward the tool shank, and an arc surface connecting the straight surface and extending toward the tool shank, each of the end blades has an inclined surface connecting the arc surface, and a connection The rear bevel and the straight front bevel can effectively prevent improper collision at the back edge, making chip removal easy during cutting, without causing blockage, good heat dissipation temperature, and can reduce cutting resistance, thereby increasing the speed of the cutter structure and increasing Cutting rate, thereby improving the overall efficiency of the cutter.

Please refer to FIG. 1 to FIG. 4, the parabolic cutter structure provided in this creative embodiment is mainly composed of a tool holder 10 and a tool head 20, among which:

The shank 10; specifically, the shank 10 is a cylindrical body with a uniform outer diameter, which is used to support the function of fixing the structure of the cutting blade.

The cutter head 20 is integrally formed on one end of the shank 10 and has a virtual circumferential line 21.

Since the connection methods of the tool holder 10 and the tool head 20 are both conventional, and the operation method is the same as the conventional ones, and it is not the creative focus of this case, the detailed structure and assembly of the component (the tool holder 10) The method and action method will not be described in detail.

The virtual circumferential line 21 of the cutter head 20 is concavely provided with three chip removal grooves 22 toward the center of the circle to form an end edge 23 and a circular parabolic side edge 24. In this embodiment, three chip removal grooves 22 are taken as For example, but not limited to this, the chip flutes 22 are recessed into the cutter head 20 on average, each chip flute 22 has a straight surface 221 extending toward the tool holder 10, and a straight surface connecting the straight surface 221 and toward Each of the end edges 23 of the arc surface 222 of the tool holder 10 has a rear inclined surface 231 connecting the curved surface 222, and a front inclined surface 232 connecting the rear inclined surface 231 and the straight surface 221. The front inclined surface 232 is formed by The top view is a plane and the outer edge of the front inclined surface 232 is formed with two triangular structures. The two structures are different to reduce the contact area between the side blade 24 and the wood block A, effectively preventing improper collision at the back edge In order to avoid the phenomenon of sticking and poor heat dissipation during the forming process; at the same time, the chip removal groove 22 enhances the chip removal performance.

Understandably, there is a connecting section 30 between the shank 10 and the cutter head 20, and the connecting section 30 is gradually integrated from the shank 10 to the cutter head 20 after being tapered; the bottom of the shank 10 is integrated The diameter varies according to the demand; the length of the straight surface 221 of the chip flute 22 varies according to the demand; the above structure can effectively reduce the resistance of the feed, not only can perform cutting operations in a more labor-saving manner, but also indeed improve the cutting process. The efficiency, prolonging the service life and improving the quality of the processed surface, to overcome the existing cutting edge, often caused by the problem of high collapse rate due to poor design.

Please refer to FIG. 5 to FIG. 6, which provides a parabolic cutter structure according to another embodiment of the present invention. Since its actuation method and effect are the same as those in the above embodiment, it will not be repeated here. As for this embodiment, the difference lies in : The imaginary circumferential line 21' of the cutter head 20' is recessed with two rows of chip grooves 22' to form an end edge and a parabolic arc-shaped side edge 24'. The chip grooves 22' take two examples, and With two arc-shaped parabolic side edges 24', this embodiment also uses the principle of arc-shaped parabola to divide the pressure equally, effectively dispersing the cutting resistance of the cutting edge and increasing the cutting rate of the cutting blade, thereby improving the cutting edge Use efficiency and service life.

The above is the configuration description of the main components of the new embodiment. As for the efficacy of the new model, it is as follows:

In this way, the present invention provides a parabolic cutter structure. With the side blade 24 being arc-shaped, it effectively disperses the cutting resistance of the blade and improves the cutting rate of the cutter, and reduces the side blade 24 and the wood block A The contact area effectively prevents improper collision at the back edge to avoid sticking and poor heat dissipation during the forming process. By reducing friction to avoid the heat accumulation effect, it will not cause excessive local temperature during cutting and reduce cutting The resistance, in turn, increases the speed of the cutter structure, increases the cutting rate, and thus enhances the overall utility of the cutter.

In summary, the above-mentioned embodiments and drawings are only preferred embodiments of the new model. When the scope of the implementation of the new model cannot be limited, all changes and modifications made in accordance with the patent application of the new model should belong to Within the scope of this new patent.

A: Wooden block 10: Tool holder 20, 20’: cutter head 21, 21’: circumferential line 22, 22’: Chip removal ditch 221: Face to face 222: Curved surface 23: End Blade 231: rear bevel 232: front bevel 24, 24’: side blade 30: connection segment

Figure 1 is a perspective view of an embodiment of the present invention; 2 is a top view of the new embodiment of the present invention; Figure 3 is an enlarged perspective view of an embodiment of the present invention; 4 is a state diagram of the use of the new embodiment of the present invention; 5 is a perspective view of another embodiment of the present invention; and 6 is a top view of the embodiment of FIG.

10: Tool holder

20: cutter head

22: Chip removal ditch

221: Face to face

222: Curved surface

23: End Blade

231: rear bevel

232: front bevel

24: Side blade

30: connection segment

Claims (4)

A parabolic cutter structure, including: A knife handle; and A cutter head is integrally formed on one end of the cutter handle and has a virtual circumferential line; The utility model is characterized in that the virtual circumferential line of the cutter head is concaved with at least two chip discharge grooves to form an end edge and a parabola-shaped side edge, each chip discharge groove has a straight surface extending toward the tool holder, and a connection The straight surface and the arc surface extending toward the tool shank, each of the end blades has a rear inclined surface connecting the curved surface, and a front inclined surface connecting the rear inclined surface and the straight surface. The parabolic cutter structure according to claim 1, wherein the shank is a cylindrical body with a uniform outer diameter. The parabolic cutter structure according to claim 1, characterized in that, there is a connecting segment between the tool shank and the tool head, and the connecting segment is gradually integrated from the tool shank to the tool head after being tapered. The parabolic cutter structure according to claim 1, wherein there are three at least two chip flutes.

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