CN218395958U

CN218395958U - Cutting tool

Info

Publication number: CN218395958U
Application number: CN202221579228.7U
Authority: CN
Inventors: 颜少华; 黄斌; 郭林; 谢蔚; 何坤明; 李白群; 赵小武; 程青峰; 冯春涛
Original assignee: Hongfujin Precision Electronics Chengdu Co Ltd
Current assignee: Hongfujin Precision Electronics Chengdu Co Ltd
Priority date: 2022-06-22
Filing date: 2022-06-22
Publication date: 2023-01-31
Anticipated expiration: 2032-06-22

Abstract

The utility model provides a cutter, has the center pin that extends along the first direction, and the cutter includes handle of a knife and the tool bit along first direction interconnect, and the one end that the handle of a knife was kept away from to the tool bit is equipped with a plurality of cutting edges, and the week side of tool bit is equipped with the helicla flute that a plurality of spirals extend, and cutting edge and helicla flute one-to-one and cutting edge are formed at the tip of helicla flute, and the helicla flute is concave on the cell wall towards the handle of a knife to be equipped with at least one chip guide groove, the one end and the cutting edge intercommunication of chip guide groove. In the cutter, when the cutting edge cuts into a product, chips generated by the product enter the spiral groove from the chip guide groove communicated with the cutting edge, so that the flow direction of the chips is controlled conveniently, the chips are discharged, the splashing condition of the chips in the cutting process is reduced, and the service life of the cutter is prolonged.

Description

Cutting tool

Technical Field

The application relates to the technical field of machining, in particular to a cutter.

Background

The existing cutter can generate a large amount of cutting scraps in the cutting process, the cutting scraps are easy to clamp on the cutting edge of the cutter and are difficult to discharge, and the service life of the cutter is shortened.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide a tool which facilitates chip removal and increases tool life.

The embodiment of the application provides a cutter, has the center pin that extends along the first direction, the cutter includes the edge first direction interconnect's handle of a knife and tool bit, the tool bit is kept away from the one end of handle of a knife is equipped with a plurality of cutting edges, the week side of tool bit is equipped with the helicla flute that a plurality of spirals extend, the cutting edge with the helicla flute one-to-one just the cutting edge is formed with the tip of helicla flute, the helicla flute orientation the groove wall of handle of a knife is gone up to cave and is equipped with at least one chip groove, the chip groove one end with the cutting edge intercommunication.

The embodiment of the application comprises the following technical effects: in the cutter, when the cutting edge cuts into a product, chips generated by the product enter the spiral groove from the chip guide groove communicated with the cutting edge, so that the flow direction of the chips is controlled conveniently, the chips are discharged, the splashing condition of the chips in the cutting process is reduced, and the service life of the cutter is prolonged.

In some embodiments of the present application, the helicla flute includes first helicla flute and second helicla flute, first helicla flute with second helicla flute is the spiral respectively and extends in week side of tool bit, the cutting edge includes first cutting edge and second cutting edge, first cutting edge form in the tip of first helicla flute, the second cutting edge form in the tip of second helicla flute.

In some embodiments of the present application, the chip guide groove includes at least one first chip guide groove and at least one second chip guide groove, first chip guide groove is recessed to be located the second helicla flute orientation on the cell wall of handle of a knife, the one end of first chip guide groove with first cutting edge intercommunication, second chip guide groove is recessed to be located first helicla flute orientation on the cell wall of handle of a knife, the one end of second chip guide groove with the second cutting edge intercommunication.

The embodiment of the application comprises the following technical effects: when the first cutting edge and the second cutting edge cut into a product, chips generated by the product enter the first spiral groove and the second spiral groove from the first chip guide groove communicated with the first cutting edge and the second chip guide groove communicated with the second cutting edge respectively, so that the flow direction of the chips is controlled conveniently to discharge the chips.

In some embodiments of the present application, the tool bit further includes a first rake surface and a first flank surface that are disposed adjacent to each other in a second direction, the second direction is perpendicular to the first direction, the first rake surface and the first flank surface are disposed on both sides of the first cutting edge, and the first rake surface is opposite to the center axis.

The embodiment of the application comprises the following technical effects: the first cutting edge is formed by arranging a first front cutting surface and a first rear cutting surface so that the first cutting edge is in contact with the product, and the first front cutting surface is arranged obliquely relative to the central shaft, so that part of chips formed by the first cutting edge cutting the product are fed into the first spiral groove through the first front cutting surface, and the chips are convenient to discharge.

In some embodiments of the present application, the tool bit is further provided with a second rake face and a second flank face which are adjacently arranged along a third direction, the third direction intersects with the second direction, the second rake face and the second flank face are arranged on two sides of the second cutting edge, the second rake face is opposite to the second flank face, and the angle of the central axis is smaller than that of the second flank face.

The embodiment of the application comprises the following technical effects: the second cutting edge is formed by arranging the second front cutter face and the second rear cutter face so that the second cutting edge is contacted with the product, and the second front cutter face is obliquely arranged relative to the central shaft, so that part of chips formed by cutting the product by the second cutting edge are conveyed into the second spiral groove through the second front cutter face, and the chips are convenient to discharge.

In some embodiments of the present application, one end of the first chip groove communicates with the first flank, and the other end of the first chip groove extends spirally along a groove wall of the second spiral groove in the first direction.

The embodiment of the application comprises the following technical effects: the first rear tool face is obliquely arranged relative to the central shaft, so that part of chips formed by cutting products by the first cutting edge flow to the first chip guide groove in the second spiral groove along the first rear tool face, and the purpose of chip control is achieved.

In some embodiments of the present application, one end of the second chip groove communicates with the second flank, and the other end of the second chip groove extends spirally along the groove wall of the first spiral groove in the first direction.

The embodiment of the application comprises the following technical effects: the second rear cutter face is obliquely arranged relative to the central shaft, so that partial chips formed by cutting products by the second cutting edge flow to the second chip guide groove in the first spiral groove along the second rear cutter face, and the purpose of controlling the chips is achieved.

In some embodiments of the present application, the tool bit still is equipped with first inclined plane, first inclined plane is located first rake face with between the second flank face, first inclined plane with smooth curve transition between the first rake face, first inclined plane with form first chip groove between the first rake face, first chip groove intercommunication first spiral groove.

The embodiment of the application comprises the following technical effects: part of the chips generated by the first cutting edge cutting product is fed into the first spiral groove through the first chip groove formed by the first inclined surface and the first rake surface, so that the chips are discharged conveniently.

In some embodiments of the present application, the tool bit still is equipped with the second inclined plane, the second inclined plane is located the second rake face with between the first flank face, the second inclined plane with smooth curve transition between the second rake face, the second inclined plane with form the second chip groove between the second rake face, the second chip groove intercommunication the second helicla flute.

The embodiment of the application comprises the following technical effects: and part of the chips generated by cutting the product by the second cutting edge are fed into the second spiral groove through a second chip groove formed by the second inclined surface and the second front cutter surface, so that the chips are discharged conveniently.

In some embodiments of the present application, the tool bit is further provided with a first peripheral edge and a second peripheral edge, the first peripheral edge extends spirally and is disposed on a side peripheral surface of the tool bit close to the first spiral groove and away from the first blade, the second peripheral edge extends spirally and is disposed on a side peripheral surface of the tool bit close to the second spiral groove and away from the second blade, and the first peripheral edge and the second peripheral edge protrude from the peripheral surface of the tool bit.

The embodiment of the application comprises the following technical effects: by providing the first peripheral edge and the second peripheral edge on the peripheral sides of the first helical groove and the second helical groove, the strength of the cutter head is stabilized.

In the cutter, when the first cutting edge and the second cutting edge cut into a product, chips generated by the product enter the first spiral groove and the second spiral groove from the first chip guide groove communicated with the first cutting edge and the second chip guide groove communicated with the second cutting edge respectively, so that the flow direction of the chips is controlled conveniently to discharge the chips, the splashing condition of the chips in the cutting process is reduced, and the service life of the cutter is prolonged.

Drawings

Fig. 1 is a schematic structural diagram of a cutting tool according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a chip guide groove according to an embodiment of the present application.

Fig. 3 is a schematic view of the first chip flute and the second chip flute according to an embodiment of the present application.

Fig. 4 is a top view of a tool according to an embodiment of the present application, as viewed in a first direction.

Description of the main elements

Cutting tool 100

Knife handle 10

Cutting head 20

Blade 21

First blade 211

Second blade 212

Helical groove 22

First helical groove 221

Second helical groove 222

Chip guide groove 23

First chip guide groove 231

Second chip guide groove 232

First chip flute 24

First rake surface 24a

First flank surface 24b

First inclined surface 24c

Second chip pocket 25

The second rake surface 25a

Second flank surface 25b

Second inclined surface 25c

The first peripheral edge 26

Second peripheral edge 27

Center axis A

First direction X

Second direction Y

Third direction Z

The following detailed description will further illustrate the present application in conjunction with the above-described figures.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. As used herein, the terms "vertical," "horizontal," "left," "right," "top," "bottom," and the like are used for descriptive purposes only and are not intended to limit the present application.

It will be appreciated that when describing the parallel/perpendicular arrangement of two components, the angle between the two components is allowed to have a tolerance of + -10% with respect to standard parallel/perpendicular.

The embodiment of the application provides a cutter has the center pin that extends along first direction, and the cutter includes handle of a knife and the tool bit along first direction interconnect, and the one end that the handle of a knife was kept away from to the tool bit is equipped with a plurality of cutting edges, and the week side of tool bit is equipped with the helicla flute that a plurality of spirals extend, and the cutting edge is formed with helicla flute one-to-one and cutting edge in the tip of helicla flute, and the helicla flute is concave on the cell wall of handle of a knife towards being equipped with at least one chip groove, chip groove's one end and cutting edge intercommunication.

In the cutter, when the cutting edge cuts into a product, chips generated by the product enter the spiral groove from the chip guide groove communicated with the cutting edge, so that the flow direction of the chips is controlled conveniently, the chips are discharged, the splashing condition of the chips in the cutting process is reduced, and the service life of the cutter is prolonged.

Some embodiments of the present application will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1, a cutting tool 100 provided in an embodiment of the present application has a central axis a extending along a first direction X, the cutting tool 100 includes a tool shank 10 and a tool bit 20 connected to each other along the first direction X, a plurality of cutting edges 21 are disposed at an end of the tool bit 20 away from the tool shank 10, a plurality of spiral grooves 22 extending in a spiral manner are disposed at a peripheral side of the tool bit 20, the cutting edges 21 correspond to the spiral grooves 22 one to one, the cutting edges 21 are formed at an end of the spiral grooves 22, at least one chip guide groove 23 is concavely disposed on a wall of the spiral groove 22 facing the tool shank 10, and one end of the chip guide groove 23 is communicated with the cutting edge 21.

In the tool 100, when the cutting edge 21 cuts into a product (not shown in the figure), chips generated by the product enter the spiral groove 22 from the chip guide groove 23 communicated with the cutting edge 21, so that the flow direction of the chips is controlled to discharge the chips, the occurrence of splashing of the chips in the cutting process is reduced, and the service life of the tool 100 is prolonged.

Referring to fig. 1 and 2 together, in the present embodiment, the spiral groove 22 includes a first spiral groove 221 and a second spiral groove 222, the first spiral groove 221 and the second spiral groove 222 spirally extend on the circumferential side of the tool tip 20, respectively, the blade 21 includes a first blade 211 and a second blade 212, the first blade 211 is formed at an end of the first spiral groove 221, and the second blade 212 is formed at an end of the second spiral groove 222.

With continued reference to fig. 1 and 2, in some embodiments, the chip guide slots 23 include at least one first chip guide slot 231 and at least one second chip guide slot 232, the first chip guide slot 231 is recessed in the wall of the second spiral slot 222 facing the tool holder 10, one end of the first chip guide slot 231 is communicated with the first cutting edge 211, the second chip guide slot 232 is recessed in the wall of the first spiral slot 221 facing the tool holder 10, and one end of the second chip guide slot 232 is communicated with the second cutting edge 212.

When the first cutting edge 211 and the second cutting edge 212 cut into the product, chips generated by the product enter the first spiral groove 221 and the second spiral groove 222 from the first chip guide groove 231 communicated with the first cutting edge 211 and the second chip guide groove 232 communicated with the second cutting edge 212 respectively, so that the flow direction of the chips is controlled, and the chips are discharged.

Referring to fig. 2 and 3, in some embodiments, the tool tip 20 further includes a first rake surface 24a and a first relief surface 24b disposed adjacent to each other along a second direction Y, the second direction Y being perpendicular to the first direction X, the first rake surface 24a and the first relief surface 24b being disposed on both sides of the first cutting edge 211. The first cutting edge 211 is formed by providing the first rake face 24a and the first flank face 24b so that the first cutting edge 211 comes into contact with a product, facilitating cutting of the product. The angle of the first rake face 24a with respect to the central axis a is smaller than the angle of the first relief face 24b with respect to the central axis a. The first rake surface 24a is disposed obliquely with respect to the central axis a so that a part of chips formed by the first cutting edge 211 cutting the product is fed into the first helical flute 221 through the first rake surface 24a, facilitating the discharge of the chips.

With continued reference to fig. 2 and 3, in some embodiments, the cutting head 20 further has a second rake surface 25a and a second relief surface 25b adjacently disposed along a third direction Z, the third direction Z intersects the second direction Y, and the second rake surface 25a and the second relief surface 25b are disposed on both sides of the second cutting edge 212. The second cutting edge 212 is formed by providing the second rake face 25a and the second flank face 25b so that the second cutting edge 212 contacts the product, facilitating the cutting of the product. The angle of the second rake surface 25a with respect to the central axis a is smaller than the angle of the second relief surface 25b with respect to the central axis a. The second rake surface 25a is disposed obliquely with respect to the central axis a so that a part of chips formed by the product cut by the second cutting edge 212 is fed into the second helical flute 222 through the second rake surface 25a, facilitating the discharge of the chips.

In some embodiments, the third direction Z and the second direction Y may be perpendicular.

With continued reference to fig. 2 and 3, in some embodiments, one end of the first chip guide groove 231 communicates with the first relief surface 24b, and the other end of the first chip guide groove 231 extends spirally along the groove wall of the second spiral groove 222 in the first direction X. The first relief surface 24b is inclined with respect to the central axis a, so that a part of chips formed by cutting a product by the first cutting edge 211 flow to the first chip guide groove 231 in the second spiral groove 222 along the first relief surface 24b, thereby achieving the purpose of chip control. In this embodiment, two first chip guide grooves 231 are provided, and the two first chip guide grooves 231 are spaced apart from each other on the groove wall of the second spiral groove 222. Optionally, the number of the first chip guide slots 231 may also be one of 1, 3, 4, 5, 6, and the like.

In the present embodiment, the cross section of the first chip guide groove 231 is semicircular, and the first chip guide groove 231 extends in a smooth spiral shape on the groove wall of the second spiral groove 222. Alternatively, the shape of the first chip guide groove 231 may be modified according to the actual condition of a product to be cut.

With continued reference to fig. 2 and 3, in some embodiments, one end of the second chip guide groove 232 communicates with the second relief surface 25b, and the other end of the second chip guide groove 232 extends spirally along the groove wall of the first spiral groove 221 in the first direction X. The second flank surface 25b is inclined with respect to the central axis a, so that part of chips formed by the product cut by the second cutting edge 212 flow to the second chip guide groove 232 in the first spiral groove 221 along the second flank surface 25b, thereby achieving the purpose of chip control. In this embodiment, two second chip guide grooves 232 are provided, and two second chip guide grooves 232 are spaced apart from each other on the groove wall of the first spiral groove 221. Optionally, the number of the second chip guide slots 232 may also be one of 1, 3, 4, 5, 6, and the like.

In the present embodiment, the cross section of the second chip guide groove 232 is semicircular, and the second chip guide groove 232 extends in a smooth spiral shape on the groove wall of the first spiral groove 221. Alternatively, the shape of the second chip guide groove 232 may be modified according to the actual condition of the product to be cut.

Referring to fig. 3 and 4, in some embodiments, the cutting insert 20 further includes a first inclined surface 24c, the first inclined surface 24c is disposed between the first rake surface 24a and the second relief surface 25b, the first inclined surface 24c and the first rake surface 24a have a smooth curved transition, a first chip pocket 24 is formed between the first inclined surface 24c and the first rake surface 24a, and the first chip pocket 24 is connected to the first spiral groove 221. A part of the chips generated by the cutting of the product by the first cutting edge 211 is fed into the first helical flute 221 through the first chip flute 24 formed by the first inclined surface 24c and the first rake surface 24a, facilitating the discharge of the chips.

With continued reference to fig. 3 and 4, in some embodiments, the cutting insert 20 further has a second inclined surface 25c, the second inclined surface 25c is disposed between the second rake surface 25a and the first relief surface 24b, the second inclined surface 25c and the second rake surface 25a have a smooth curved transition, a second chip flute 25 is formed between the second inclined surface 25c and the second rake surface 25a, and the second chip flute 25 is connected to the second spiral flute 222. Part of the chips generated by the product cut by the second cutting edge 212 is fed into the second flute 222 through the second chip flute 25 formed by the second inclined surface 25c and the second rake surface 25a, facilitating the chip discharge.

Referring to fig. 2, in some embodiments, the cutting head 20 further has a first peripheral edge 26 and a second peripheral edge 27, the first peripheral edge 26 is spirally extended and disposed on a side of the cutting head 20 close to the first spiral groove 221 and away from the first cutting edge 211, the second peripheral edge 27 is spirally extended and disposed on a side of the cutting head 20 close to the second spiral groove 222 and away from the second cutting edge 212, and the first peripheral edge 26 and the second peripheral edge 27 protrude from the peripheral surface of the cutting head 20. By providing the first peripheral edge 26 and the second peripheral edge 27 on the peripheral sides of the first helical groove 221 and the second helical groove 222, the strength of the tool tip 20 is stabilized.

It should be understood by those skilled in the art that the above embodiments are only for illustrating the present application and are not to be taken as limiting the present application, and that suitable changes and modifications to the above embodiments are within the scope of the present disclosure as long as they are within the spirit and scope of the present application.

Claims

1. A cutter having a central axis extending in a first direction, the cutter comprising a handle and a head interconnected along the first direction, the head being remote from the handle at one end thereof being provided with a plurality of cutting edges, characterized in that: the side of the cutter head is provided with a plurality of spirally extending spiral grooves, the cutting edges correspond to the spiral grooves one to one, the cutting edges are formed at the end parts of the spiral grooves, the spiral grooves face the groove wall of the cutter handle, at least one chip guide groove is concavely arranged on the groove wall of the cutter handle, and one end of the chip guide groove is communicated with the cutting edges.

2. The tool according to claim 1, wherein: the helicla flute includes first helicla flute and second helicla flute, first helicla flute with second helicla flute spiral respectively extends in week side of tool bit, the cutting edge includes first cutting edge and second cutting edge, first cutting edge form in the tip of first helicla flute, the second cutting edge form in the tip of second helicla flute.

3. The tool according to claim 2, wherein: the chip guide groove comprises at least one first chip guide groove and at least one second chip guide groove, the first chip guide groove is concavely arranged on the groove wall of the knife handle, one end of the first chip guide groove is communicated with the first knife edge, the second chip guide groove is concavely arranged on the groove wall of the knife handle, the first spiral groove is oriented on the groove wall of the knife handle, and one end of the second chip guide groove is communicated with the second knife edge.

4. The tool according to claim 3, wherein: the tool bit still is equipped with along adjacent first rake face and the first back knife face that sets up of second direction, the second direction with first direction is perpendicular, first rake face with first back knife face is located the both sides of first sword, first rake face is relative the angle of center pin is less than first back knife face is relative the angle of center pin.

5. The tool according to claim 4, wherein: the tool bit still is equipped with along the adjacent second rake face and the second back knife face that sets up of third direction, the third direction with the second direction is criss-cross, the second rake face with knife face is located behind the second the both sides of second cutting edge, the second rake face is relative the angle of center pin is less than knife face is relative behind the second the angle of center pin.

6. The tool according to claim 4, wherein: one end of the first chip guide groove is communicated with the first rear cutter face, and the other end of the first chip guide groove extends spirally along the groove wall of the second spiral groove in the first direction.

7. The tool according to claim 5, wherein: one end of the second chip guide groove is communicated with the second rear cutter face, and the other end of the second chip guide groove extends spirally along the groove wall of the first spiral groove in the first direction.

8. The tool according to claim 5, wherein: the tool bit still is equipped with first inclined plane, first inclined plane is located first rake face with between the second back knife face, first inclined plane with smooth curve transition between the first rake face, first inclined plane with form first chip groove between the first rake face, first chip groove intercommunication first helicla flute.

9. The tool according to claim 5, wherein: the tool bit still is equipped with the second inclined plane, the second inclined plane is located the second rake face with between the first back knife face, the second inclined plane with smooth curve transition between the second rake face, the second inclined plane with form the second chip groove between the second rake face, second chip groove intercommunication the second helicla flute.

10. The tool according to claim 2, wherein: the tool bit is further provided with a first peripheral edge and a second peripheral edge, the first peripheral edge extends spirally and is arranged on the peripheral surface of one side, close to the first spiral groove, of the tool bit, and away from the first blade, the second peripheral edge extends spirally and is arranged on the peripheral surface of one side, close to the second spiral groove, of the tool bit, and the first peripheral edge and the second peripheral edge protrude out of the peripheral surface of the tool bit.