CN113695609A

CN113695609A - Cutter with adjustable micro texture

Info

Publication number: CN113695609A
Application number: CN202110965164.8A
Authority: CN
Inventors: 陈舜青; 路文斌; 冯华瑶; 董小伟
Original assignee: Shanghai Institute of Technology
Current assignee: Shanghai Institute of Technology
Priority date: 2021-08-23
Filing date: 2021-08-23
Publication date: 2021-11-26

Abstract

The invention provides a cutter with adjustable microtexture, which comprises a cutter holder, a cutter handle and a blade, wherein the cutter handle is connected with the cutter holder, and the blade is connected with the cutter handle; the knife handle comprises an auxiliary chip breaking surface; the blade comprises a chip breaker and a rear cutter face, wherein the chip breaker comprises a first front angle, a second front angle, a front cutter face and a chip breaker groove back, the chip breaker groove back is a semicircular arc curved surface, and the rear cutter face is provided with a sine curve type micro-texture structure in array arrangement. The invention reduces the abrasion of the cutter and the flute back of the chip breaker, reduces the cutting temperature and ensures that the blade can be repeatedly utilized; and the cutting angle of the blade is adjustable, so that the cutting effect of the cutter is improved.

Description

Cutter with adjustable micro texture

Technical Field

The invention relates to the technical field of cutters, in particular to a cutter with adjustable microtexture.

Background

In the metal processing process, how to break the chips becomes a primary concern, and the flow direction and the breakage of the chips are often controlled by arranging the chip breaking grooves and the like so as to achieve the required processing technology level. In the actual cutting process, a large amount of cutting heat is generated, and the cutting heat cannot be dissipated in time, so that the abrasion of the cutter is aggravated, and the chip breaking effect is greatly influenced, and the quality of the machined and formed surface is poor. Therefore, how to improve the service life and the machining process level of the tool is particularly important.

Researches show that the chip breaker groove arranged on the surface of the cutter can achieve a good chip breaking effect; the side surface of the cutter is provided with the microtexture, so that the effects of storing cooling liquid, reducing the cutting temperature of the cutter and reducing the friction between chips and a rear cutter surface can be achieved.

Therefore, the invention provides a cutter with adjustable microtexture, which solves the problem of excessive wear of the cutter during the cutting process and simultaneously reduces a large amount of cutting heat generated during the cutting process.

Disclosure of Invention

In view of the shortcomings of the prior art, it is an object of the present invention to provide a microtextured adjustable tool.

The cutter with the adjustable microtexture comprises a cutter holder, a cutter handle and a blade, wherein the cutter handle is connected with the cutter holder, and the blade is connected with the cutter handle; the knife handle comprises an auxiliary chip breaking surface; the blade comprises a chip breaker and a rear cutter face, wherein the chip breaker comprises a first front angle, a second front angle, a front cutter face and a chip breaker groove back, the chip breaker groove back is a semicircular arc curved surface, and the rear cutter face is provided with a sine curve type micro-texture structure in array arrangement.

Furthermore, a connecting hole is formed in the tool apron, and the tool shank is connected with the tool apron through a connecting rod.

Further, the blade is connected with the tool holder through a bolt.

Preferably, the angle of the first rake angle is 10 ° and the angle of the second rake angle is 25 °.

Preferably, the ridge width of the chip breaker is 0.05mm, the groove depth is 0.2mm, and the groove width is 0.7 mm.

Preferably, the breaker groove back is formed by 4 continuous semicircular arcs.

Preferably, the radius of the arc surface of the flute back of the chip breaker is 1.23 mm.

Preferably, the amplitude of the micro-texture sine curve of the flank face is 0.1mm, and the depth of the micro-texture of the flank face is 0.015 mm.

And further, a cooling liquid is filled in the microtextured structure of the rear cutter face.

Further, the chip breakers of the blade are symmetrically arranged on both sides of the blade.

Compared with the prior art, the invention has the following beneficial effects:

according to the cutter with the adjustable microtexture, the microtexture structure is arranged on the rear cutter face, and the cooling liquid is filled in the microtexture structure, so that the abrasion of the cutter and the groove back of the chip breaker groove is reduced, the cutting temperature is reduced, and the cutter blade can be repeatedly utilized. Through the connecting piece, the cutter is rotationally fixed according to the optimal angle required during cutting, and the cutting effect of the cutter is improved.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic diagram of the overall structure of a microtexture adjustable tool according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a chip breaker structure of a micro-texture adjustable tool provided by an embodiment of the invention;

fig. 3 is a schematic structural diagram of a flank of a cutter with adjustable microtexture according to an embodiment of the present invention.

In the figure:

1-a tool apron;

2-a knife handle;

3-a blade;

4-a first rake angle;

5-a second rake angle;

6-a gasket;

7-chip breaker groove back;

8-auxiliary chip breaking noodles;

9-a connection opening;

10-a connecting rod;

11-connecting hole.

Detailed Description

The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.

As shown in fig. 1, which is a schematic view of a microtexture-adjustable cutting tool provided in an embodiment of the present invention, the cutting tool in this embodiment includes a tool apron 1, a tool shank 2, and a blade 3, the tool shank 2 is connected to the tool apron 1, the blade 3 is connected to the tool shank 2, the tool apron 1 and the tool shank 2 form a supporting mechanism, and the blade 3 forms a cutting mechanism.

One end part of the tool apron 1 is provided with a connecting opening 9, and one end of the tool shank 2 is arranged in the connecting opening 9; connecting holes 11 are formed in the tool apron 1 on two sides of the connecting opening 9, correspondingly, holes are also formed in the tool shank 2, and connecting rods 10 are arranged in the connecting holes 11 and the holes in the tool shank 2, so that the tool apron 1 is connected with the tool shank 2 through the connecting rods 10.

The blade 3 is arranged at the second end of the shank 2 and protrudes the blade 3 out of the shank 2, facilitating the cutting of the workpiece. The center of the blade 3 is provided with a hole, so that the blade 3 is connected with the tool holder 2 through a bolt. A washer 6 is provided between the end of the bolt and the blade 3 for adjusting the force between the bolt and the blade 3.

In this embodiment, the blade 3 is square in shape, and the structure of the blade 3 is symmetrically arranged around the center of the blade 3.

As shown in fig. 2 and 3, which are a corner view of the insert 3, the insert 3 includes chip breakers and relief surfaces. The chip breaker comprises a first rake angle 4, a second rake angle 5, a rake face and a chip breaker groove back 7, the first rake angle 4 and the second rake angle 5 together constituting the tip of the tool.

In the present embodiment, the angle of the first rake angle 4 is 10 °, the angle of the second rake angle 5 is 25 °, and the ridge width, the groove depth and the groove width of the chip breaker formed therefrom are 0.05mm, 0.2mm and 0.7mm, respectively.

The breaker groove back 7 is a continuous semicircular arc curved surface, as shown in fig. 1, the breaker groove back 7 is formed by four semicircular arcs, and in the embodiment, the radius of the arc surface is 1.23 mm. There are 4 identical sets of breaker groove backs 7 on the entire upper end face of the insert 3. In the present embodiment, a chip breaker groove back 7 is provided in one diagonal direction of the insert 3.

As shown in fig. 3, the flank surface has a sinusoidal microtexture structure arranged in an array, in this embodiment, the amplitude of the sinusoidal microtexture is 0.1mm, i.e., the amplitude of the sinusoidal curve; the depth of the micro texture is 0.015mm, and each micro texture structure consists of 18 periods of sine curves; the minimum distance between the peak point of the sine curve and the knife tip is 0.23 mm. At one end of one side of the flank face, the sinusoidal microtextured structure has three rows in total, the pitch of each row being 0.15 mm.

In this embodiment, the chip breakers are symmetrically disposed on the upper and lower end surfaces of the blade 3, and accordingly, the microtextured structures on the flank surface are also symmetrically disposed in the upper and lower directions. Thus, the upper and lower surfaces of the blade 3 can cut the workpiece. In the present embodiment, a total of 24 rows of sinusoidal microtextured structures are provided in the circumferential direction of the blade 3.

In this embodiment, the microtextured structure of the flank face is filled with a cooling liquid.

As shown in fig. 1, the holder 2 is provided with an auxiliary chip-breaking surface 8, and chips cut by the blade 3 can flow out of the auxiliary chip-breaking surface 8.

The angle between the tool apron 1 and the tool handle 2 can be adjusted through the connecting rod 10, the angle between the tool apron 1 and the tool handle 2 is preset according to the angle required during cutting, and then the connecting rod 10 is fixed through the nut, so that the tool with the required angle can be obtained.

The angle of the blade 3 can be adjusted through the bolt at the center of the blade 3, and the blade 3 can be fixed on the cutter handle 2 again in the direction of changing the number by detaching the bolt according to the abrasion degree of the blade 3.

The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

Claims

1. A cutter with adjustable microtexture is characterized by comprising a cutter holder, a cutter handle and a blade, wherein the cutter handle is connected with the cutter holder, and the blade is connected with the cutter handle; the knife handle comprises an auxiliary chip breaking surface; the blade comprises a chip breaker and a rear cutter face, wherein the chip breaker comprises a first front angle, a second front angle, a front cutter face and a chip breaker groove back, the chip breaker groove back is a semicircular arc curved surface, and the rear cutter face is provided with a sine curve type micro-texture structure in array arrangement.

2. The microtexture adjustable tool of claim 1, wherein the tool holder is provided with a connecting hole, and the tool shank and the tool holder are connected by a connecting rod.

3. The microtextured adjustable knife of claim 1, wherein the blade is bolted to the handle.

4. The microtextured adjustable tool of claim 1, wherein the first rake angle is 10 ° and the second rake angle is 25 °.

5. The microtextured adjustable tool according to claim 4, wherein the chip breakers have a ridge width of 0.05mm, a groove depth of 0.2mm and a groove width of 0.7 mm.

6. The microtextured adjustable tool of claim 1, wherein the chip breaker flute back is comprised of 4 continuous half-arcs.

7. The microtextured adjustable tool of claim 6, wherein the radius of the arc surface of the flute back of the chip breaker is 1.23 mm.

8. The microtextured adjustable tool according to claim 1, wherein the microtextured sinusoidal curve of the flank face has an amplitude of 0.1mm and the microtexture of the flank face has a depth of 0.015 mm.

9. The microtextured adjustable tool according to claim 1, wherein the microtextured structure of the flank face is filled with a cooling fluid.

10. The microtextured adjustable tool of claim 1, wherein the chip breakers of the blades are symmetrically disposed on both sides of the blades.