TWM598748U - Tool with high-strength teeth - Google Patents

Abstract

A tool with high-strength cutting teeth extending along an axis. The tool with high-strength cutting edges includes a cutting tool segment, several cutting edge units, and several chip flutes. The tool segment includes a surrounding surface around the axis. The blade units are located on the surrounding surface and extend spirally around the axis. Each blade unit includes a plurality of blade teeth arranged at intervals around the axis, and a plurality of reinforcing parts respectively located between every two blade teeth and capable of increasing the rigidity of the blade teeth. The outer contour of each tooth protrudes from the outer contour of each reinforcing part. Each reinforcing part and two adjacent blade teeth define a groove. The chip flutes are respectively arranged between every two blade units. The tool with high-strength teeth can increase the stiffness of the teeth and reduce the amount of deformation of the teeth toward the grooves by providing the reinforcing parts, so it has the ability to strengthen the teeth Strength function.

Description

Tools with high-strength teeth

The new model relates to a processing tool, in particular to a tool with high-strength cutting teeth.

Referring to FIG. 1, a conventional milling cutter includes a shank section 11 and a tool section 12 connected to the shank section 11. The cutting tool segment 12 has three cutting edge units 121 extending in a spiral shape, and three chip grooves 122 respectively arranged between every two cutting edge units 121.

Each blade unit 121 includes a plurality of blade teeth 123 arranged at intervals, and a plurality of grooves 124 respectively defined by every two blade teeth 123.

When the existing milling cutter mills a workpiece (not shown), the cutting teeth 123 can cut several small chips (not shown) to reduce cutting resistance, so it has the advantage of shortening the processing time. However, When the rigidity or toughness of the workpiece is large, the blade teeth 123 are easily deformed and cannot be used continuously.

Therefore, the purpose of the present invention is to provide a tool with high-strength teeth.

Therefore, the new cutter with high-strength teeth extends along an axis. The tool with high-strength cutting edges includes a cutting tool segment, several cutting edge units, and several chip flutes.

The tool segment includes a surrounding surface around the axis. The blade units are located on the surrounding surface and extend spirally around the axis. Each blade unit includes a plurality of blade teeth arranged at intervals around the axis, and a plurality of reinforcing parts respectively located between every two blade teeth and capable of increasing the rigidity of the blade teeth. The outer contour of each tooth protrudes from the outer contour of each reinforcing part. Each reinforcing part and two adjacent blade teeth define a groove. The chip flutes are respectively arranged between every two blade units.

The effect of the present invention is that by providing the reinforcing parts, the rigidity of the blade teeth can be increased and the deformation of the blade teeth toward the grooves can be reduced, so it has the ability to strengthen the strength of the blade teeth Features.

Referring to Figures 2, 3, and 4, an embodiment of the new high-strength cutting tool is suitable for connecting to a processing machine (not shown) and processing a workpiece (not shown).

The tool with high-strength blade teeth extends along an axis L and includes a shank section 2, a tool section 3, a plurality of blade units 4, and a plurality of chip flutes 5. The chip flutes 5 are respectively arranged between every two blade units 4. The number of the blade units 4 is at least three. In this embodiment, the number of the blade units 4 is four.

The cutting tool segment 3 and the cutting edge units 4 are made integrally. The tool section 3 includes a surrounding surface 31 around the axis L.

The blade units 4 are located on the surrounding surface 31 and extend spirally around the axis L, and an included angle θ1 with the axis L is between 15 degrees and 35 degrees. In this embodiment, the blade units 4 extend right-handedly around the axis L, and the included angle θ1 between each blade unit 4 and the axis L is 20 degrees.

Each blade unit 4 includes a plurality of blade teeth 41 arranged at intervals around the axis L, and a plurality of reinforcing parts 42 located between every two blade teeth 41 and capable of increasing the rigidity of the blade teeth 41.

The outer contour of each blade tooth 41 protrudes from the outer contour of each reinforcing portion 42 and has a blade portion 411 extending left-handedly. An included angle θ2 between each blade portion 411 and the axis L is between 25 degrees and 45 degrees. In this embodiment, the included angle θ2 between each blade portion 411 and the axis L is 40 degrees.

Each reinforcing portion 42 has two connecting regions 421 arranged oppositely and respectively connected to the corresponding cutting teeth 41, and an intermediate region 422 connecting the connecting regions 421. Each reinforcing portion 42 extends from one of the connecting regions 421 toward the middle region 422 and away from the axis L, and from the middle region 422 toward the other connecting region 421 and toward the axis L to form a bell shape.

Each reinforcing portion 42 and two adjacent blade teeth 41 define a groove 43. The groove bottom of each groove 43 is w-shaped, and has two deep groove regions 431 corresponding to the connecting regions 421, and one connecting the deep groove regions 431 and having a groove depth smaller than the connecting regions 421 The shallow groove area 432 of the groove depth. The minimum groove depth of each groove 43 is defined as a first depth d1, and the maximum groove depth of each groove 43 is defined as a second depth d2. The ratio of the first depth d1 to the second depth d2 is between 40% and 60%. In this embodiment, the ratio of the first depth d1 to the second depth d2 is 50%.

When the user is using the tool with high-strength teeth, the tool with high-strength teeth must be fixed to the processing machine, and then the processing machine is used to drive the tool with high-strength teeth around the axis L By rotating, the workpiece can be cut by the blade units 4. By providing the cutting teeth 41, several small chips (not shown) can be cut during the machining process to reduce the cutting resistance and shorten the machining time, and the chips will be discharged through the tangential direction of the grooves 43 And stay away from the tool with high-strength teeth.

In addition, referring to Fig. 5, the part drawn by solid lines in Fig. 5 is the actual contour of the tool with high-strength teeth, and the part drawn by imaginary lines in the figure is the imaginary contour when the reinforcing parts 42 are not provided. It can be clearly understood from the figure that the tool with high-strength teeth can increase the rigidity of the teeth 41 and reduce the deformation of the teeth 41 toward the grooves 43 by providing the reinforcing parts 42 Therefore, it has the function of strengthening the strength of the blade teeth 41. In addition, the groove depth of the deep groove regions 431 of the tool with high-strength teeth is close to the groove depth when the reinforcing parts 42 are not provided, so it will not affect the discharge of the chips through the grooves 43 Features.

3, 4, and 5, it is worth mentioning that since the blade unit 4 extends right-handedly and the included angle θ1 with the axis L is 20 degrees, and each blade portion 411 extends left-handedly and is aligned with the axis L The included angle θ2 is 40 degrees, so it can produce a better cutting effect during processing. Even if it is applied to a workpiece made of tough carbon fiber material, it can effectively cut the carbon fiber extending in different directions in the workpiece to reduce burrs. , Make the processing surface smoother.

In summary, the new cutter with high-strength teeth, by providing the reinforcing parts 42, can increase the stiffness of the teeth 41 and reduce the deformation of the teeth 41 toward the grooves 43. Therefore, it has the function of strengthening the strength of the blade teeth 41, so it can indeed achieve the purpose of new style.

However, the above are only examples of the present model. When the scope of implementation of the present model cannot be limited by this, all simple equivalent changes and modifications made in accordance with the patent scope of the present model application and the contents of the patent specification still belong to This new patent covers the scope.

2: Shank section 3: Tool segment 31: Surrounding surface 4: Blade unit 41: blade tooth 411: Blade 42: Reinforcement Department 421: Connection Zone 422: middle area 43: Groove 431: Deep Groove 432: Shallow Groove 5: Chip flute d1: first depth d2: second depth L: axis θ1: included angle θ2: included angle

Other features and effects of the present invention will be clearly presented in the embodiment with reference to the drawings, among which: Figure 1 is a front view of an existing milling cutter; Figure 2 is a perspective view of an embodiment of the new cutting tool with high strength teeth; Figure 3 is a partial enlarged view of Figure 2; Figure 4 is an incomplete front view of the embodiment; and Figure 5 is an incomplete schematic front view of this embodiment.

3: Tool segment

4: Blade unit

41: blade tooth

411: Blade

42: Reinforcement Department

421: Connection Zone

422: middle area

43: Groove

431: Deep Groove

432: Shallow Groove

5: Chip flute

L: axis

Claims (8)

A tool with high-strength cutting edges extending along an axis and containing: A tool segment, including a surrounding surface around the axis; A number of blade units are located on the surrounding surface and extend in a spiral shape around the axis. Each blade unit includes a number of blade teeth spaced around the axis, and a number of blade teeth are located between every two blade teeth and can increase the Reinforcement parts of equal blade teeth, the outer contour of each blade tooth protrudes from the outer contour of each reinforcement part, and each reinforcement part and two adjacent blade teeth define a groove; and Several chip flutes are respectively arranged between every two blade units. The tool with high-strength teeth according to claim 1, wherein the ratio of the minimum groove depth to the maximum groove depth of each groove is between 40% and 60%. The tool with high-strength blade teeth according to claim 2, wherein each reinforcing portion of each blade unit has two connection areas which are arranged oppositely and are respectively connected to the corresponding blade teeth, and a connection area connecting the connection areas Each of the reinforcing parts extends from one of the connecting areas toward the intermediate area and away from the axis, and from the intermediate area to the other connecting area and toward the axis. The tool with high-strength cutting edges according to claim 3, wherein the cutting tool segment and the cutting edge units are made integrally. The tool with high-strength blade teeth according to claim 1, wherein the blade units extend right-handedly around the axis, and each blade tooth has a blade portion that extends left-handedly. The tool with high-strength blade teeth according to claim 5, wherein the angle between each blade unit and the axis is between 15 degrees and 35 degrees, and the angle between each blade and the axis is between 25 degrees and Between 45 degrees. The tool with high-strength blade teeth according to claim 6, wherein the angle between each blade unit and the axis is 20 degrees, and the angle between each blade and the axis is 40 degrees. The tool with high-strength blade teeth according to claim 1, wherein the number of the blade units is at least three.

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