CN220782369U - Mute type pre-milling cutter - Google Patents
Mute type pre-milling cutter Download PDFInfo
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- CN220782369U CN220782369U CN202322470296.0U CN202322470296U CN220782369U CN 220782369 U CN220782369 U CN 220782369U CN 202322470296 U CN202322470296 U CN 202322470296U CN 220782369 U CN220782369 U CN 220782369U
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- cutter
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- 238000003801 milling Methods 0.000 title claims abstract description 49
- 238000005520 cutting process Methods 0.000 claims abstract description 61
- 238000010008 shearing Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 7
- 238000010521 absorption reaction Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 230000009467 reduction Effects 0.000 abstract description 3
- 229910003460 diamond Inorganic materials 0.000 description 8
- 239000010432 diamond Substances 0.000 description 8
- 238000003754 machining Methods 0.000 description 5
- 239000002023 wood Substances 0.000 description 5
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000030279 gene silencing Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000005555 metalworking Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Milling Processes (AREA)
Abstract
The utility model discloses a mute pre-milling cutter, belongs to the field of plate processing cutters, and solves the problem that the existing pre-milling cutter is not ideal in noise reduction effect. The cutter comprises a cutter body, wherein a plurality of groups of cutting parts are arranged on the cutter body, chip grooves are formed in the cutter body on one side of each group of cutting parts, a plurality of sound absorption grooves are formed in the outer wall of the cutter body, and each sound absorption groove is annularly arranged along the outer wall surface of the cutter body. The pre-milling cutter can further reduce noise generated in the processing process and meet the use requirement of the pre-milling cutter rotating at high speed.
Description
Technical Field
The present utility model relates to a sheet metal working tool, and more particularly, to a silent pre-milling cutter.
Background
In the processing process of the plate, as burrs and unevenness often exist at the edge of the plate formed by preliminary cutting, the pre-milling is generally carried out before entering into the edge sealing, so that the side surface is in a flat and flat state, and the pre-milling cutter is a cutter commonly used in the pre-milling process. The existing pre-milling cutter is as follows: 202223112550.1-an integral diamond pre-milling cutter, wherein in the milling process of the pre-milling cutter, when an upper layer material of a wood board is milled, a long diamond blade and a short diamond blade with upper rings are milled simultaneously, and the number of the involved diamond blades is large, so that the milling quality of the upper layer of the wood board is ensured; when the lower layer material of the wood board is milled, the long diamond blade and the short diamond blade with the lower ring are milled simultaneously, and the number of the involved diamond blades is large, so that the milling quality of the lower layer of the wood board is ensured.
The existing pre-milling cutter is provided with the silencing groove II and the silencing groove I which are communicated with each other on the cylindrical surface of the cylindrical body, namely, the chip groove is formed in one side of the blade, so that the working noise of the integral diamond pre-milling cutter can be greatly reduced, and the worker is ensured to work in a low-noise environment. But for a pre-milling cutter rotating at a high speed, the effect is still not ideal by only relying on chip grooves (sound attenuation grooves) for noise reduction. Therefore, a silent pre-milling cutter is proposed.
Disclosure of utility model
The utility model aims to solve the technical problem of the prior art, and provides a silent pre-milling cutter, which can further reduce noise generated in the processing process and meet the use requirement of the pre-milling cutter rotating at a high speed.
The technical scheme of the utility model is as follows: the utility model provides a milling cutter in advance of silence, includes the cutter body, the cutter body on be equipped with multiunit cutting portion, every group all seted up the chip groove on the cutter body of cutting portion one side, the cutter body outer wall be equipped with many and inhale the sound groove, every inhale the sound groove all along the outer wall annular setting of cutter body.
As a further improvement, the cross section of the sound absorbing groove is an arc-shaped surface.
Further, the inner wall surface of the chip groove is of a horn-shaped structure extending obliquely from the bottom to the top, and the inclination of the inner wall of the chip groove on one side far away from the cutting part is smaller than that of the inner wall of the chip groove on one side close to the cutting part.
Further, the chip groove comprises a first arc-shaped surface, an inclined surface and a second arc-shaped surface which are sequentially arranged along the cutting direction, one end of the first arc-shaped surface is connected with and tangent to the cutting surface of the cutting part, two ends of the inclined surface are respectively connected with and tangent to the other end of the first arc-shaped surface and one end of the second arc-shaped surface, the other end of the second arc-shaped surface is connected with and tangent to the outer wall surface of the cutter body, the circle center corresponding to the first arc-shaped surface is located on the outer side of the cutter body, and the circle center corresponding to the second arc-shaped surface is located on the inner side of the cutter body.
Further, the cutting parts of the plurality of groups are distributed in an upper layer and a lower layer, and the knife edges of the cutting parts of the upper layer and the lower layer face opposite directions and face the axial middle part of the knife body.
Further, the cutting part comprises a tooth holder and a cutting edge, wherein the tooth holder is fixedly connected with the cutter body, and the cutting edge is fixed on the tooth holder close to one side of the chip groove.
Further, the outer wall surface of toothholder includes third arcwall face, fourth arcwall face, fifth arcwall face and sixth arcwall face, third arcwall face, fourth arcwall face, fifth arcwall face and sixth arcwall face link to each other in proper order and tangent, third arcwall face still tangent with the outer wall surface of cutter body, the centre of a circle that the third arcwall face corresponds is located the outside of cutter body, the centre of a circle that the fourth arcwall face, fifth arcwall face and sixth arcwall face correspond is located the inboard of cutter body.
Further, the front angle alpha of the cutting edge is 0-60 degrees, the rear angle beta is 0-60 degrees, and the shearing angle mu is 0-90 degrees.
Further, the chip groove has a long waist-shaped cross section in the depth direction.
Further, the chip groove has a trapezoid cross section in the depth direction.
Advantageous effects
Compared with the prior art, the utility model has the following advantages:
1. According to the pre-milling cutter, the plurality of sound-absorbing grooves are formed in the outer wall of the cutter body, so that noise generated in the processing process can be further reduced, and the use requirement of the pre-milling cutter rotating at a high speed is met.
2. According to the pre-milling cutter, the chip removal groove is arranged on one side of the cutting part, so that noise generated during machining can be reduced, the inclination of the inner wall of one side of the chip removal groove away from the cutting part is smaller than that of the inner wall of one side of the chip removal groove close to the cutting part, and scraps cut by the cutting part are splashed to the side wall surface of the chip removal groove with smaller inclination, so that chip removal resistance can be reduced, impact noise between the scraps and the side wall of the chip removal groove is reduced, and noise generated during machining is further reduced.
Drawings
Fig. 1 is a schematic perspective view of embodiment 1 of the present utility model;
fig. 2 is a schematic front view of embodiment 1 of the present utility model;
FIG. 3 is a schematic top view of embodiment 1 of the present utility model;
FIG. 4 is an enlarged schematic view showing a sectional structure of the junk slot in embodiment 1 of the present utility model;
fig. 5 is a schematic perspective view of embodiment 2 of the present utility model;
fig. 6 is a schematic perspective view of embodiment 3 of the present utility model;
fig. 7 is a schematic perspective view of embodiment 4 of the present utility model.
Wherein: 1-cutter body, 2-cutting portion, 3-junk slot, 4-sound absorbing slot, 5-arch, 6-draw-in groove, 7-bolt hole, 8-cylindrical hole, 9-keyway, 21-tooth holder, 22-cutting edge, 31-first arcwall face, 32-inclined plane, 33-second arcwall face, 211-third arcwall face, 212-fourth arcwall face, 213-fifth arcwall face, 214-sixth arcwall face.
Detailed Description
The utility model will be further described with reference to specific embodiments in the drawings.
Example 1
Referring to fig. 1-4, the mute pre-milling cutter of the utility model comprises a cutter body 1, wherein the cutter body 1 is cylindrical, a plurality of groups of cutting parts 2 are arranged on the cutter body 1, the plurality of groups of cutting parts 2 are uniformly distributed along the outer wall of the cutter body 1, chip removal grooves 3 are formed in the cutter body 1 on one side of each group of cutting parts 2, a plurality of sound absorption grooves 4 are formed in the outer wall of the cutter body 1, the sound absorption grooves 4 are distributed at equal intervals along the axial direction of the cutter body 1, and each sound absorption groove 4 is annularly arranged along the outer wall surface of the cutter body 1.
The pre-milling cutter of the embodiment can further reduce noise generated in the processing process by arranging a plurality of sound absorbing grooves 4 on the outer wall of the cutter body 1, and meets the use requirement of the pre-milling cutter rotating at high speed.
Preferably, the cross section of the sound absorption groove 4 is an arc surface, the resistance of the arc surface to air flow is lower, noise reduction is facilitated, and meanwhile machining is facilitated.
Preferably, the inner wall surface of the chip groove 3 has a horn-like structure extending obliquely from the bottom to the top, i.e., the length and width of the top of the chip groove 3 are larger than those of the bottom, and the inclination of the inner wall of the chip groove 3 on the side away from the cutting portion 2 is smaller than that of the inner wall of the chip groove on the side close to the cutting portion 2. Specifically, the chip groove 3 includes a first arc surface 31, an inclined surface 32 and a second arc surface 33 which are sequentially arranged along the cutting direction, one end of the first arc surface 31 is connected with and tangent to the cutting surface of the cutting part 2, two ends of the inclined surface 32 are respectively connected with and tangent to the other end of the first arc surface 31 and one end of the second arc surface 33, the other end of the second arc surface 33 is connected with and tangent to the outer wall surface of the cutter body 1, the circle center corresponding to the first arc surface 31 is located at the outer side of the cutter body 1, and the circle center corresponding to the second arc surface 33 is located at the inner side of the cutter body 1.
According to the pre-milling cutter, the chip groove 3 is arranged on one side of the cutting part 2, so that noise generated during machining can be reduced, the inclination of the inner wall of one side of the chip groove 3 away from the cutting part is smaller than that of the inner wall of one side of the chip part, the waste chips cut by the cutting part 2 splash on the side wall surface of the chip groove 3 with smaller inclination, chip removal resistance can be reduced, impact noise between the waste chips and the side wall of the chip groove 3 is reduced, and noise generated in the machining process is further reduced.
Preferably, the cutting parts 2 are distributed in an upper layer and a lower layer, the knife edges of the upper layer and the lower layer of the cutting parts 2 face opposite directions and face the axial middle part of the cutter body 1, so that the cutting effect is effectively ensured. Further, the cutting portion 2 includes a tooth holder 21 and a cutting edge 22, the tooth holder 21 is fixedly connected with the cutter body 1, specifically, the tooth holder 21 and the cutter body 1 are in an integrally formed structure, the cutting edge 22 is fixed on the tooth holder 21 near one side of the chip groove 3, specifically, the cutting edge 22 is fixed on the tooth holder 21 by welding, and one end of the first arc-shaped surface 31 is connected with and tangent to a cutting surface of the cutting edge 22. Further, the outer wall surface of the tooth holder 21 is an arc surface, and comprises a third arc surface 211, a fourth arc surface 212, a fifth arc surface 213 and a sixth arc surface 214, wherein the third arc surface 211, the fourth arc surface 212, the fifth arc surface 213 and the sixth arc surface 214 are sequentially connected and tangent, the third arc surface 211 is also tangent to the outer wall surface of the cutter body 1, the center of the circle corresponding to the third arc surface 211 is located at the outer side of the cutter body 1, and the centers of the circles corresponding to the fourth arc surface 212, the fifth arc surface 213 and the sixth arc surface 214 are located at the inner side of the cutter body 1. When part sweeps strike on the toothholder 21, can derive to the cutter body 1 outside by third arcwall face 211, fourth arcwall face 212, fifth arcwall face 213 and sixth arcwall face 214 in proper order, reduce the resistance of sweeps for the sweeps circulation is more smooth and easy, reduces the impact force of sweeps to the toothholder 21 simultaneously, and then prolongs the life-span of toothholder, reduces the noise that processing produced. Further, the cutting edges 22 each have a rake angle α of 0 to 60 °, a relief angle β of 0 to 60 °, and a shearing angle μ of 0 to 90 °, which can ensure the cutting effect.
According to the pre-milling cutter of the embodiment, the outer wall surface of the tooth holder 21 is designed to be a streamline arc surface, and the conventional linear tooth holder 21 is changed, so that wood chips can circulate more smoothly, the chip removal effect is further improved, and the service life of a cutter is prolonged.
Preferably, a cylindrical hole 8 is formed in the center of the cutter body 1, and at least one key slot 9 is formed in the inner wall of the cylindrical hole 8. Through the cooperation of cylindrical hole 8 and keyway 9, make things convenient for cutter body 1 and arbor or other power shaft to be connected.
Preferably, the chip groove 3 of the present embodiment has a long waist-shaped cross section in the depth direction.
Example 2
Referring to fig. 5, in another embodiment of the present utility model, the present embodiment is substantially the same as embodiment 1, except that the chip groove 3 in the depth direction has a trapezoid structure, that is, the length of the inner wall of the chip groove 3 on the side far from the cutting portion 2 is longer than the length of the inner wall of the chip groove on the side near the cutting portion 2, and the longer side wall of the chip groove is more conducive to chip removal.
Example 3
Referring to fig. 6, in another specific embodiment of the present utility model, the present embodiment is basically the same as embodiment 1, and is different in that in this embodiment, a plurality of protrusions 5 are disposed on two sides of the cutter body 1, a clamping groove 6 is disposed between two adjacent protrusions 5, the protrusions 5 are adapted to the clamping groove 6, that is, the size of the protrusions 5 is the same as that of the clamping groove 6, the protrusions 5 can be just inserted into the clamping groove 6, so as to realize the superposition and assembly of the two, a plurality of bolt holes 7 are further disposed on the cutter body 1, and after the superposition and assembly of a plurality of cutters, the plurality of cutters are fastened through the bolt holes 7 by bolts, so as to realize the fixed connection of the plurality of cutters.
Preferably, the draw-in groove 6 is to the inside sunken setting of cutter body 1, and draw-in groove 6 is absorbed in cutter body 1, can increase the degree of depth of draw-in groove 6 for cutter after the stack when using, circumference power can be shared to cutter body 1 in, and not only rely on protruding 5, can effectively improve the structural strength of cutter after the stack, increase of service life.
Preferably, the position of the protrusion 5 on one side of the cutter body 1 corresponds to the position of the clamping groove 6 on the other side of the cutter body 1, namely, the protrusion 5 on one side of the cutter body 1 is arranged in a staggered manner with the clamping groove 6 on the other side of the cutter body 1, so that the thickness of the cutter body 1 can be ensured, the layout of the cutting part 2 and the chip removal groove 3 is facilitated, and meanwhile, the structural strength of the cutter can be improved.
Preferably, the bulge 5, the clamping groove 6 and the bolt hole 7 are all positioned at the edge of the cutter body 1, and the superposition structure is arranged at the edge of the cutter body 1, so that the structural strength of the cutter can be effectively improved, and the service life of the cutter is prolonged.
According to the pre-milling cutter, the clamping grooves and the protrusions which are matched with each other are formed in the two sides of the cutter body, when the pre-milling cutter is used, the protrusions of the two pre-milling cutters can be inserted into the clamping grooves to be used in a superposition mode, the cutters can be used in a superposition mode according to the thickness of the plate, trouble in cutter changing is reduced, the pre-milling cutter is very convenient to use, multiple cutters with different thicknesses are not required to be arranged, and the manufacturing cost of the cutters is effectively reduced.
Example 4
Referring to fig. 7, in another specific embodiment of the present utility model, the present embodiment is basically the same as embodiment 2, and is different in that in this embodiment, a plurality of protrusions 5 are disposed on two sides of the cutter body 1, a clamping groove 6 is disposed between two adjacent protrusions 5, the protrusions 5 are adapted to the clamping groove 6, that is, the size of the protrusions 5 is the same as that of the clamping groove 6, the protrusions 5 can be just inserted into the clamping groove 6, so as to realize the superposition and assembly of the two, a plurality of bolt holes 7 are further disposed on the cutter body 1, and after the superposition and assembly of a plurality of cutters, the plurality of cutters are fastened through the bolt holes 7 by bolts, so as to realize the fixed connection of the plurality of cutters.
Preferably, the draw-in groove 6 is to the inside sunken setting of cutter body 1, and draw-in groove 6 is absorbed in cutter body 1, can increase the degree of depth of draw-in groove 6 for cutter after the stack when using, circumference power can be shared to cutter body 1 in, and not only rely on protruding 5, can effectively improve the structural strength of cutter after the stack, increase of service life.
Preferably, the position of the protrusion 5 on one side of the cutter body 1 corresponds to the position of the clamping groove 6 on the other side of the cutter body 1, namely, the protrusion 5 on one side of the cutter body 1 is arranged in a staggered manner with the clamping groove 6 on the other side of the cutter body 1, so that the thickness of the cutter body 1 can be ensured, the layout of the cutting part 2 and the chip removal groove 3 is facilitated, and meanwhile, the structural strength of the cutter can be improved.
Preferably, the bulge 5, the clamping groove 6 and the bolt hole 7 are all positioned at the edge of the cutter body 1, and the superposition structure is arranged at the edge of the cutter body 1, so that the structural strength of the cutter can be effectively improved, and the service life of the cutter is prolonged.
According to the pre-milling cutter, the clamping grooves and the protrusions which are matched with each other are formed in the two sides of the cutter body, when the pre-milling cutter is used, the protrusions of the two pre-milling cutters can be inserted into the clamping grooves to be used in a superposition mode, the cutters can be used in a superposition mode according to the thickness of the plate, trouble in cutter changing is reduced, the pre-milling cutter is very convenient to use, multiple cutters with different thicknesses are not required to be arranged, and the manufacturing cost of the cutters is effectively reduced.
While only the preferred embodiments of the present utility model have been described above, it should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these do not affect the effect of the implementation of the present utility model and the utility of the patent.
Claims (10)
1. The utility model provides a milling cutter in advance of silence, includes cutter body (1), cutter body (1) on be equipped with multiunit cutting portion (2), every group all seted up chip groove (3) on cutter body (1) of cutting portion (2) one side, its characterized in that, cutter body (1) outer wall be equipped with many and inhale sound groove (4), every inhale sound groove (4) all along the outer wall annular setting of cutter body (1).
2. A silent pre-milling cutter according to claim 1, characterized in that the sound-absorbing slot (4) has an arcuate cross-section.
3. A silent pre-milling cutter according to claim 1, characterized in that the inner wall surface of the chip groove (3) has a trumpet-like structure extending obliquely from the bottom to the top thereof, and the slope of the inner wall of the chip groove (3) on the side remote from the cutting portion (2) is smaller than the slope of the inner wall on the side close to the cutting portion (2).
4. A silent pre-milling cutter according to claim 3, characterized in that the chip groove (3) comprises a first arc surface (31), an inclined surface (32) and a second arc surface (33) which are sequentially arranged along the cutting direction, one end of the first arc surface (31) is connected with and tangent to the cutting surface of the cutting part (2), two ends of the inclined surface (32) are respectively connected with and tangent to the other end of the first arc surface (31) and one end of the second arc surface (33), the other end of the second arc surface (33) is connected with and tangent to the outer wall surface of the cutter body (1), the circle center corresponding to the first arc surface (31) is located on the outer side of the cutter body (1), and the circle center corresponding to the second arc surface (33) is located on the inner side of the cutter body (1).
5. A silent pre-milling cutter according to claim 1, characterized in that the plurality of sets of cutting portions (2) are arranged in two layers, the cutting edges of the upper and lower layers (2) being oppositely directed and both being directed towards the axial middle of the cutter body (1).
6. The silent pre-milling cutter according to claim 1, wherein the cutting part (2) comprises a tooth holder (21) and a cutting edge (22), the tooth holder (21) is fixedly connected with the cutter body (1), and the cutting edge (22) is fixed on the tooth holder (21) at one side close to the chip groove (3).
7. The silent pre-milling cutter according to claim 6, wherein the outer wall surface of the tooth holder (21) comprises a third arc surface (211), a fourth arc surface (212), a fifth arc surface (213) and a sixth arc surface (214), the third arc surface (211), the fourth arc surface (212), the fifth arc surface (213) and the sixth arc surface (214) are sequentially connected and tangent, the third arc surface (211) is also tangent to the outer wall surface of the cutter body (1), the center of the circle corresponding to the third arc surface (211) is located at the outer side of the cutter body (1), and the centers of the circles corresponding to the fourth arc surface (212), the fifth arc surface (213) and the sixth arc surface (214) are located at the inner side of the cutter body (1).
8. The silent pre-milling cutter according to claim 6, wherein the cutting edges (22) have a rake angle α of 0-60 °, a relief angle β of 0-60 °, and a shearing angle μ of 0-90 °.
9. A silent pre-milling cutter according to any of claims 1-8, characterized in that the chip groove (3) has a long waist-shaped cross-section in the depth direction.
10. A silent pre-milling cutter according to any of claims 1-8, characterized in that the chip groove (3) has a trapezoid-shaped cross-section in the depth direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322470296.0U CN220782369U (en) | 2023-09-11 | 2023-09-11 | Mute type pre-milling cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322470296.0U CN220782369U (en) | 2023-09-11 | 2023-09-11 | Mute type pre-milling cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220782369U true CN220782369U (en) | 2024-04-16 |
Family
ID=90636565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322470296.0U Active CN220782369U (en) | 2023-09-11 | 2023-09-11 | Mute type pre-milling cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220782369U (en) |
-
2023
- 2023-09-11 CN CN202322470296.0U patent/CN220782369U/en active Active
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