TWM591012U - Compound cutter - Google Patents

Abstract

A compound cutter includes a blade handle, a blade body, a drilling blade, and two cutting blades. The blade body includes a base connected to the blade shank, and a blade seat extending from the base along an extension axis toward a side opposite to the blade shank. The drilling blade is fixed to an end of the blade seat opposite to the base, and has a drilling edge disposed on a side opposite to the base. The cutting blades extend along the extension axis and are fixed to the blade seat. The cutting blades are respectively disposed on two opposite sides of the drilling blade. Each cutting blade has a cutting edge disposed on a side opposite to the drilling blade. With the drilling edge and the cutting edges, the new type is suitable for cutting and drilling at the same time, thereby avoiding the replacement of tools to simplify the processing process and reduce the processing time.

Description

Compound cutter

The new type relates to a machine tool component, especially a compound cutter.

Referring to FIG. 1, a conventional cutting tool 9 includes a blade shank 91, a blade body 92 connected to the blade shank 91, and two cutting blades 93 fixed to the blade body 92. The blade body portion 92 has a shaft body section 921 extending along an extension axis X, and the shaft body section 921 defines a shaft body length M1 along the extension axis X. The cutting blades 93 extend along the extending axis X and are fixed to the shaft body 921 at an angular interval around the shaft body 921. Each cutting blade 93 has a cutting blade 931 disposed on a side opposite to the shaft section 921. The cutting edge 931 defines a length M2 along the extension axis X. The edge length M2 is greater than the shaft length M1. When the existing cutting tool 9 is used, the cutting tool 9 is installed on a machine tool through the blade handle portion 91, and the existing cutting tool 9 is driven and rotated by the tool machine, and then opposite The to-be-processed object put on the machine tool performs a blanking process.

However, since the cutting edge 931 extends along the extending axis X, the existing cutting tool 9 is only suitable for moving in a direction perpendicular to the extending axis X to cut the workpiece, but not suitable for cutting Moving in the direction of the extension axis X and cutting. In other words, the existing cutting tool 9 is only suitable for the cutting process. After the cutting is completed, if the drilling process is required, the existing cutting tool 9 must be removed and replaced with a tool suitable for drilling. If the cutting tool is not replaced, the existing cutting tool 9 has a problem that it is difficult to discharge waste during drilling, and it is easy to cause damage to the cutting blades 93, and it is impossible to effectively perform the drilling process.

Furthermore, changing the tool will cause the machining process to be cumbersome and delay the machining time. In addition, it is also very common for users to forget to change tools. Therefore, how to avoid replacing the tool becomes an important issue.

Therefore, the purpose of the present invention is to provide a compound tool that avoids changing the tool to simplify the machining process and reduce the machining time.

Therefore, the novel composite cutter includes a blade shank, a blade body, a drilling blade, and two cutting blades. The blade body includes a base connected to the blade shank, and a blade seat extending from the base along an extension axis toward a side opposite to the blade shank. The drilling blade is fixed to an end of the blade seat opposite to the base, and has a drilling edge disposed on a side opposite to the base. The cutting blades extend along the extension axis and are fixed to the blade seat. The cutting blades are respectively disposed on two opposite sides of the drilling blade. Each cutting blade has a cutting edge disposed on a side opposite to the drilling blade.

The effect of the new type is that the drilling edge is suitable for performing the drilling process, and the cutting edges are simultaneously suitable for performing the cutting process, thereby avoiding the replacement of the tool to simplify the machining process and Reduce processing time.

2 and 3, an embodiment of the novel compound cutter includes a blade shank 1, a blade body 2 connected to the blade shank 1 along an extension axis Z, and a blade body 2 perpendicular to the extension axis The first axis D1 of Z extends and is fixed to the drilling blade 3 of the blade body 2, and two along a second axis D2 which is perpendicular to the first axis D1 and the extended axis Z are respectively disposed at The cutting blades 4 on opposite sides of the drilling blade 3.

Referring to FIGS. 3, 4 and 5, the blade body 2 includes a base 21 connected to the blade shank 1 and a side opposite to the blade shank 1 along the extension axis Z from the base 21 Extended blade seat 22. The blade holder 22 has a connecting portion 23 and two side portions 24 connected to the two opposite sides of the connecting portion 23 along the second axis D2. The surfaces of the side portions 24 opposite to each other along the second axis D2 and the surface of the connecting portion 23 opposite to the base jointly define a drilling edge slot 25. It should be noted that in this embodiment, the blade body 2 is manufactured in an integrated manner. Therefore, in FIG. 3 and FIG. 5, the connecting portion 23 and the side portions 24 are marked by imaginary lines. The boundary between them is easy to understand.

Each side portion 24 has a central section 241, a first section 242 connected to one side of the central section 241 along the first axis D1, and a central section connected to the central section along the first axis D1 241 The second section 243 on the other side. The first section 242 of each side 24 corresponds to the second section 243 of the other side 24 along the second axis D2. Each central section 241 has a first extension surface 244 disposed on a side opposite to the base 21. Each first section 242 protrudes in a direction opposite to the drilling edge 25 along the second axis D2, and has a second extension surface 245 disposed on the side opposite to the base 21. Each second section 243 protrudes in a direction opposite to the drilling edge 25 along the second axis D2 and has a third extending surface 246 disposed on the side opposite to the base 21. The central section 241 of each side 24 and the respective first section 242 and second section 243 together define a row of chip flutes U.

The drilling blade 3 is fixed to the drilling blade slot 25 by welding, and has a central blade section 31 disposed between the central sections 241, and two are respectively connected to the first axis D1 along the first axis D1 The side blade segments 32 on opposite sides of the central blade segment 31. Each blade section 32 is disposed between the first section 242 of one side 24 and the second section 243 of the other side 24. The central blade section 31 has a drilling edge 311 (refer to FIG. 2) disposed on the side opposite to the base 21, and two along the drilling edge 311 as a boundary and is along by the drilling edge 311 The second axial surface D2 extends toward the two opposite sides while also inclining toward the first blade surface 312 of the base 21. Each blade section 32 has a second blade surface 321 disposed on the side opposite to the base 21. The drilling edge 311 is along the extension axis Z and an axial distance L1 defined by the base 21.

The cutting blades 4 extend along the extension axis Z and are respectively fixed to the first sections 242 of the blade holder 22 by welding. Each cutting blade 4 has a cutting edge 41 disposed on the side opposite to the drilling blade 3 and a third cutting surface 42 disposed on the side opposite to the base 21. The cutting edge 41 defines a blade length L2 along the extension axis Z.

Each first cutting surface 312 of the drilling blade 3 is coplanar with the respective first extending surface 244 and connected to each other to form a first chip discharge surface S1. The first chip evacuation surfaces S1 extend from the drilling edge 311 toward the two opposite sides along the second axis D2 and are inclined toward the base 21.

Each second blade surface 321 of the drilling blade 3 is coplanar with the corresponding third blade surface 42, second extension surface 245, and third extension surface 246 and connected to each other to form a second chip discharge surface S2 . Each second chip evacuation surface S2 extends along the first axis D1 toward a side opposite to the central blade section 31 while being inclined toward the base 21. In addition, each second chip evacuation surface S2 extends from the respective first section 242 toward the respective second section 243 while being inclined toward the base 21 so that the corresponding cutting edge 41 The blade length L2 is greater than the axial distance L1 defined by the drilling edge 311 of the drilling blade 3 along the extension axis Z from the base 21.

In use, the user can install this embodiment on a machine tool (not shown) by using the blade handle 1 and use the machine tool to drive this embodiment to rotate around a rotation direction R. While this embodiment is rotating, the machine tool can move the embodiment along the direction of the extension axis Z, and along the direction of extension Z is against a to-be-processed object placed on the machine tool (not shown) Shown), so that the drilling edge 311 cuts the object to be processed along the extension axis Z to perform the drilling process. In addition, the machine tool can also drive the movement of this embodiment along a cutting direction perpendicular to the extending axis Z, and can interfere with the object to be processed along the cutting direction, so that the cutting edges 41 Cutting the object to be processed along the cutting direction to perform the cutting process.

Compared with the prior art, the present embodiment is suitable for performing a drilling process through the drilling edge 311 along the extension direction Z against the object to be processed. At the same time, in this embodiment, because the blade length L2 is greater than the axial distance L1, the cutting edge 41 does not interfere with the drilling edge 311 when the cutting edge 41 cuts the object to be processed along the cutting direction The object to be processed is suitable for performing the blanking process. In this way, it is not necessary to change the tool when using this embodiment to perform the drilling and cutting process, which has the effect of simplifying the processing process and reducing the processing time. In addition, whether it is a drilling process or a cutting process, the waste generated during cutting can be smoothly discharged along the first chip evacuation surface S1 and the second chip evacuation surface S2. Therefore, the drilling blade 3 and the cutting blade 4 are not easy to collapse, and the durability is improved.

It should also be noted that the chips generated during cutting will move along the first chip evacuation surface S1 and the second chip evacuation surface S2 to be collected in the chip evacuation grooves U, thereby preventing the chip splatter from splashing The effect is helpful to improve the user experience.

To sum up, the new type compound cutter is suitable for performing the drilling process through the drilling edge 311, and is also suitable for performing the cutting process through the cutting edge 41, thereby avoiding Replace the tool to simplify the processing process and reduce the processing time, so it can really achieve the purpose of new cost.

However, the above are only examples of the new model. When the scope of the new model cannot be limited by this, any simple equivalent changes and modifications made according to the patent application scope and patent specification content of the new model are still regarded as Within the scope of this new patent.

1‧‧‧Blade handle 2‧‧‧Blade 21‧‧‧Dock 22‧‧‧Blade 23‧‧‧Connection 24‧‧‧Side 241‧‧‧ Central section 242‧‧‧The first section 243‧‧‧Second Section 244‧‧‧The first extension 245‧‧‧Second extension surface 246‧‧‧The third extension 25‧‧‧Drilling flute 3‧‧‧Drilling blade 31‧‧‧Central blade 311‧‧‧Drilling edge 312‧‧‧The first blade face 32‧‧‧Side edge section 321‧‧‧Second blade face 4‧‧‧cutting blade 41‧‧‧ Cutting edge 42‧‧‧The third blade face Z‧‧‧Extend axial D1‧‧‧ First axis D2‧‧‧Second axis L1‧‧‧Axis distance L2‧‧‧Blade length S1‧‧‧ First chip removal surface S2‧‧‧second chip removal surface U‧‧‧chip chute R‧‧‧Rotation direction

Other features and functions of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: Figure 1 is a side view of an existing cutting tool; Fig. 2 is a front view of an embodiment of the novel composite cutter; Figure 3 is a right side view of the embodiment; 4 is a bottom view of the embodiment; and FIG. 5 is a cross-sectional view taken along line V-V in FIG. 4. FIG.

241‧‧‧ Central section

242‧‧‧The first section

243‧‧‧Second Section

244‧‧‧The first extension

245‧‧‧Second extension surface

246‧‧‧The third extension

25‧‧‧Drilling flute

3‧‧‧Drilling blade

32‧‧‧Side edge section

321‧‧‧Second blade face

4‧‧‧cutting blade

42‧‧‧The third blade face

D1‧‧‧ First axis

D2‧‧‧Second axis

S1‧‧‧ First chip removal surface

S2‧‧‧second chip removal surface

31‧‧‧Central blade

311‧‧‧Drilling edge

312‧‧‧The first blade face

U‧‧‧chip chute

R‧‧‧Rotation direction

Claims (12)

A compound cutter, including: A blade handle A blade body, including a base connected to the blade shank, and a blade seat extending from the base along an extension axis toward a side opposite to the blade shank; A drilling blade, fixed to an end of the blade seat opposite to the base, and having a drilling edge disposed on a side opposite to the base; and Two cutting blades extend along the extension axis and are fixed to the blade seat. The cutting blades are respectively disposed on two opposite sides of the drilling blade. Each cutting blade has a The cutting edge on one side of the drilling blade. The compound cutter according to claim 1, wherein the drilling blade extends along a first axis substantially perpendicular to the extension axis, and the cutting blades are substantially perpendicular to the first axis along a substantially simultaneously An axial direction and a second axial direction of the extended axial direction are respectively disposed on two opposite sides of the drilling blade. The compound cutter according to claim 2, wherein the blade seat of the blade body has a drilling edge groove provided at an end opposite to the base, and the drilling edge groove extends along the first axial direction and provides The drilling blade is provided. The compound cutter according to claim 3, wherein the blade seat of the blade body has a connecting portion, and two side portions respectively connected to two opposite sides of the connecting portion along the second axis. The connecting portion defines the drilling edge slot, each side portion has a central section, a first section connected to one side of the central section along the first axis, and a along the first axis To the second section connected to the other side of the central section, the first section of each side corresponds to the second section of the other side along the second axis, and each first section The second axial direction protrudes in a direction opposite to the drilling blade groove and is provided for fixing the respective cutting blades. The compound cutter according to claim 4, wherein the drilling blade has a central blade section disposed between the central sections, and two are respectively connected to the central blade section along the first axis Opposite side edge segments, each side edge segment is disposed between a first segment on one side and a second segment on the other side, the central edge segment has the drilling edge. The compound cutter according to claim 5, wherein the central edge section of the drilling blade further has two edges demarcated by the drilling edge and facing the opposite sides along the second axis from the drilling edge The first blade surface inclined toward the base while extending, each central section of the blade body has a first extension surface disposed on a side opposite to the base, each first extension surface is The respective first blade surfaces are coplanar and connected to each other to form a first chip discharge surface. The compound cutter according to claim 6, wherein each side edge section of the drilling blade has a second edge surface disposed on the side opposite to the base, and each cutting edge blade There is a third blade surface provided on the side opposite to the base, the first section of each side has a second extension surface provided on the side opposite to the base, each side The second section of the portion has a third extension surface disposed on the side opposite to the base, and each second blade surface is in common with the corresponding third blade surface, second extension surface, and third extension surface The planes are connected to each other to form a second chip evacuation surface, and each second chip evacuation surface extends along the first axis toward a side opposite to the central cutting edge while inclining toward the base. The compound cutter according to claim 7, wherein each second chip evacuation surface extends from the respective first section toward the respective second section while being inclined toward the base so that the corresponding The length of a cutting edge defined by the cutting edge along the extension axis is greater than a distance between the drilling edge of the drilling edge and the axis defined by the base along the extension axis. The compound cutter according to claim 1, wherein the blade body and the drilling blade together form two first chip evacuation surfaces disposed on the side opposite to the base, the first chip evacuation surfaces Taking the drilling edge as a boundary and extending from the drilling edge toward two opposite sides, it is also inclined toward the base. The compound cutter according to claim 9, wherein the blade body and the drilling blade further form two connected to both ends of the drilling edge respectively and extending toward a side opposite to the drilling edge At the same time, it also inclines towards the second chip evacuation surface. The compound cutter according to claim 1, wherein the drilling blade and the cutting blade are fixed to the blade seat of the blade body by welding. The compound cutter according to claim 4, wherein each second section of the blade body protrudes in a direction opposite to the drilling edge groove along the second axis, and the central section of each side is separated from the respective The first section and the second section together define a row of chip flutes.

Images