CN107626960B - Rotary cutting tool with replaceable tool bit, rotary cutting method thereof and tool bit mounting method - Google Patents
Rotary cutting tool with replaceable tool bit, rotary cutting method thereof and tool bit mounting method Download PDFInfo
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- CN107626960B CN107626960B CN201710804385.0A CN201710804385A CN107626960B CN 107626960 B CN107626960 B CN 107626960B CN 201710804385 A CN201710804385 A CN 201710804385A CN 107626960 B CN107626960 B CN 107626960B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The invention relates to a rotary cutting tool with a replaceable tool bit, a rotary cutting method and a tool bit mounting method thereof, and belongs to the field of hole machining in the machining industry. At present, twist drills used for drilling are of an integrated structure, and the tool bit needs to be replaced integrally after reaching the service life, so that the cost is high. In the drilling tool with the replaceable tool bit, because the radial and axial acting forces borne by the tool bit are larger in the drilling process, the conditions of inaccurate drilling and the like caused by radial displacement of the tool bit at the joint can be generated, the replaceable structure of the tool bit can lead the drilling tool to be fragile at the joint of the tool bit, and the design of the chip groove can lead the drilling tool matrix to be fragile. According to the rotary cutting tool with the replaceable tool bit, the tool bit is detachably connected with the tool bar, the V-shaped locating surface is adopted at the joint of the tool bit and the tool bar, the tool bit locating and fixing effects are good, the tool bit is not easy to deviate, the tool bar strength is improved due to different spiral angle designs of the chip removal grooves, the cooling effect is enhanced due to the design of the cooling guide grooves, and the tool bit is simple to install and detach.
Description
Technical Field
The invention relates to a rotary cutting tool with a replaceable tool bit, a rotary cutting method and a tool bit mounting method thereof, and belongs to the field of hole machining in the machining industry.
Background
At present, the twist drill used for drilling is of an integrated structure, the whole drilling tool needs to be replaced when the tool bit reaches the service life, and the cost is high, for example, the Chinese patent with the application number of 201310750248.5.
In a drilling tool with a replaceable tool bit, in the drilling process, the radial and axial acting forces borne by the tool bit are larger, so that the conditions of unsmooth drilling and the like caused by radial displacement of the tool bit at the joint can be generated, the replaceable structure of the tool bit can cause the tool bit to be weaker at the joint of the tool bit, and the design of a chip removal groove can cause the tool bit matrix to be weaker, as in the Chinese patent with the application number of 201210152756.9, the patent discloses a rotatable drilling tool and a matrix for the rotatable drilling tool, the tool bit and the matrix are fixed through the protruding part inserted into the recessed part, the joint surface of the tool bit and the matrix is approximately horizontal, and in the drilling process, the conditions of unsmooth drilling, damage at the joint of the tool bit and the matrix caused by the position deviation and the like can be generated due to the larger radial acting force; in addition, in order to achieve the chip removal effect, the drill has enough depth in the chip pocket for discharging the chips, which makes the whole drill, particularly the joint of the cutter head and the base body, more fragile; the mouth part of one end of the drilling tool for outputting cooling liquid is in a hole-shaped structure, the output of the cooling liquid is in columnar injection, and the cooling is uneven.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a rotary cutting tool with a replaceable tool bit, a rotary cutting method and a tool bit mounting method thereof.
The invention solves the problems by adopting the following technical scheme: the rotary cutting tool with the replaceable tool bit comprises a tool bit and a tool bar, wherein the tool bit is detachably connected with the tool bar, the tool bit and the tool bar are provided with a common axis, the tool bar is provided with a blade part and a handle part along the axis, and the blade part is connected with the tool bit; the cutter bar comprises a chisel edge clearance surface, a torque supporting surface, a screw hole, a concave V-shaped positioning surface, a central positioning hole, a cooling channel, a cooling hole, a cooling guide groove, a main chip removal groove and an auxiliary chip removal groove, wherein the chisel edge clearance surface is connected with the chisel edge chip removal surface; the cutter bar is provided with at least one main chip removing groove and one auxiliary chip removing groove along the axis, the internal spiral angle of the main chip removing groove comprises a first spiral angle and a second spiral angle, the angle of the first spiral angle is different from the angle of the second spiral angle, and the main chip removing groove extends to the cutting edge of the cutter head; the tool bar (the inside is provided with a cooling channel for conveying cooling liquid during drilling, the outer wall surface of the end part of the tool bar is provided with two cooling guide grooves which are arranged along the axial direction, one end of the inside of the cooling guide groove is provided with a cooling hole, the V-shaped surface positioning design is adopted to lead the axial stress to be centered in the drilling process, the tool bar is not easy to damage, the cylindrical positioning design is adopted to lead the center positioning hole to effectively resist the radial displacement of a tool bit when the drilling process is subjected to larger radial force, the stable, safe and reliable processing of the tool bit during high-speed drilling is ensured, the depth of the tool bit is reduced while the design of different spiral angles is adopted in the main tool bit groove, the tool bar strength is effectively improved, the torsional deformation in the drilling process is reduced, the problems of tool bit fragmentation, the drilling roughness difference, the drilling precision difference and the like caused by the tool bar deformation are avoided, the design of the auxiliary tool bit groove can lead the chip removal to be smoother, the chip cutting flow is reduced so as to obtain the cutting chip with the optimal shape, the design of the two cooling guide grooves at the end part can accurately control the output direction of the cooling liquid, the chip cutting flow is not reduced, the cooling flow is uniform, the cooling effect is avoided, the cooling hole is completely blocked, and the cooling effect is completely is avoided.
Furthermore, the bottom included angle of the concave V-shaped positioning surface is 90-140 degrees. The convex V-shaped locating surface is embedded into the hole to be fully contacted with the hole, so that axial stress can be centered in the drilling process.
Furthermore, the cutter head and the cutter bar are fixed through 1-2 screws. The design is reasonable.
Furthermore, the cutter head and the cutter bar are fixed through 1 screw, and the angle between the screw and the plane where the cutter head is located is 60-90 degrees. The scheme is better.
Preferably, the cutter head and the cutter bar are fixed through 1 screw, and the screw is perpendicular to the plane of the cutter head. The proposal is better.
Further, the main junk slot extends in a spiral shape along the axis, through-type or front-end part spiral-shaped rear-end part through-type. For discharging the chips.
Further, the angle β1=20° to 30 ° of the internal helix angle one of the main flute, and the angle β2=5° to 15 ° of the helix angle two. The design of adopting different spiral angles in the main chip removal groove avoids the problems of overlarge depth in the groove, poor chip removal effect and the like, can effectively improve the strength of the cutter bar and reduces torsional deformation in the drilling process.
Further, the cooling channel is provided with a main channel along the axis inside the cutter bar, and the main channel extends to the end part close to the center positioning hole to be divided into two branches and extends to the cooling holes inside the two cooling guide grooves respectively. The design is reasonable.
According to the rotary cutting tool with replaceable tool bit, the central positioning cylinder of the tool bit is inserted into the central positioning hole of the tool bar, the direction of the tool bit is adjusted to enable the convex V-shaped positioning surface to be fully contacted with the concave V-shaped positioning surface and the contact surface to be fully contacted with the torque supporting surface, and a screw is fixed through the screw hole and the tool bit screw hole. The convex V-shaped locating surface and the concave V-shaped locating surface are combined, the central locating cylinder and the central locating hole are combined, double locating is achieved, axial stress is centered in the using process, the cutter bar is not easy to damage, radial displacement of the cutter head is effectively resisted, and stable, safe and reliable machining during high-speed drilling is guaranteed.
A rotary cutting method of a rotary cutting tool with a replaceable bit, characterized in that, according to the rotary cutting tool with a replaceable bit as described above, the rotary cutting tool is turned on, the shank is held to drill the bit into a region to be drilled, and at the same time, a cooling liquid is supplied to a cooling passage; the rotary cutting tool with the double positioning structures of V-shaped surface positioning and cylindrical positioning has the advantages that the tool bit is directly drilled in along the axis in the drilling process, deviation does not occur, cooling liquid enters the cooling guide groove through the cooling hole to be divergently output to sufficiently and uniformly cool the drilling area, and cutting scraps are rapidly and sufficiently discharged from the chisel edge clearance surface and/or the chisel edge scraps discharging surface into the main scraps discharging groove and/or the auxiliary scraps discharging groove. The use process is stable, safe and reliable.
Compared with the prior art, the invention has the following advantages and effects:
1. the tool bit and the cutter arbor are positioned by adopting a double positioning mode that a convex V-shaped positioning surface and a concave V-shaped positioning surface are combined and a central positioning cylinder and a central positioning hole are combined, so that axial stress can be centered in the drilling process, radial displacement of the tool bit is effectively resisted, the cutter arbor is not easy to damage, and stable, safe and reliable processing can be ensured during high-speed drilling.
2. The design of different spiral angles is adopted in the main chip removal groove, so that the depth of the chip removal groove is reduced while the chip removal effect is met, the problems of overlarge depth in the groove, poor chip removal effect, cutter head fragmentation caused by cutter bar deformation, poor drilling roughness, poor drilling precision and the like are avoided, the strength of the cutter bar can be effectively improved, and the torsional deformation in the drilling process is reduced; the design of the auxiliary chip grooves can enable chip removal to be smoother, and reduce chip deformation so as to obtain the chips with optimal shapes.
3. The design of two cooling guide grooves with a certain length along the axis at the end part of the cutter bar can accurately control the output direction of cooling liquid, achieve the effect of uniform and thorough cooling, and can flush out cutting scraps, so that the flow rate is not reduced even if the cutting scraps are drilled in, the condition of blockage of a cooling port is avoided, and the cooling liquid pressure is kept constant.
4. The tool bit can be dismantled with the cutter arbor, and the installation is dismantled simply and conveniently, and the tool bit reaches life only to change the tool bit can, and the cutter arbor need not to change, and the cost is reduced.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a perspective view of the tool bar of the present invention.
Fig. 3 is a front view of the tool bar of the present invention.
Fig. 4 is a side view of the tool bar of the present invention.
Fig. 5 is a schematic view of a cutter head according to the present invention.
Fig. 6 is a side view of a tool bit of the invention.
Fig. 7 is a top view of a tool tip according to the present invention.
FIG. 8 is an unassembled schematic view of a tool bit and a tool shank according to the present invention.
FIG. 9 is a schematic diagram of the assembly process of the tool bit and the tool bar of the present invention.
FIG. 10 is a schematic diagram of the assembled tool bit and tool shank of the present invention.
Wherein: tool bit 1, tool shank 2, axis 3, cutting edge 10, tool bit screw hole 11, contact surface 12, convex V-shaped locating surface 13, center locating cylinder 14, chisel edge chip surface 15, circumferential cutting margin 16, blade portion 20, shank 30, torque supporting surface 201, concave V-shaped locating surface 202, center locating hole 203, screw hole 204, cooling hole 205, cooling channel 206, cooling guide 207, primary junk slot 208, secondary junk slot 209, helix angle one 210, helix angle two 211, chisel edge clearance surface 212, screw 401.
Detailed Description
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and not limited to the following examples.
Examples
Referring to fig. 1 to 10, a rotary cutting tool with a replaceable tool bit includes a tool bit 1 and a tool holder 2, the tool bit 1 being detachably connected to the tool holder 2, the tool bit 1 and the tool holder 2 having a common axis 3, the tool holder 2 having a blade portion 20 and a shank portion 30 along the axis 3, the blade portion 20 being connected to the tool bit 1.
The tool bit 1 comprises a cutting edge 10, a chisel edge chip surface 15, a contact surface 12, a tool bit screw hole 11, a circumferential cutting edge 16, a convex V-shaped positioning surface 13 and a center positioning cylinder 14; the tool bit 1 is of a central symmetry structure, the tool bit 1 rotates 180 degrees along the axis 3 to be overlapped, the cutting edge 10 and the chisel edge chip discharging surface 15 are arranged at the top of the tool bit 1 along the radial direction, the contact surface 12 and the circumference cutting edge 16 are arranged on the side surface of the tool bit 1 along the axis 3, the circumference cutting edge 16 has a certain length along the axis 3, the tool bit screw hole 11 is arranged in the tool bit 1 in a penetrating mode and penetrates through the contact surface 12, and the convex V-shaped positioning surface 13 and the central positioning cylinder 14 are arranged at the bottom of the tool bit 1.
The cutter bar 2 comprises a chisel edge clearance surface 212, a torque supporting surface 201, a screw hole 204, a concave V-shaped positioning surface 202, a center positioning hole 203, a cooling channel 206, a cooling hole 205, a cooling guide groove 207, a main chip groove 208 and a secondary chip groove 209; the chisel edge clearance surface 212 is connected with and merges with the chisel edge chip discharging surface 15, the chisel edge clearance surface 212 and the chisel edge chip discharging surface 15 are converged with the main chip discharging groove 208 and/or the auxiliary chip discharging groove 209, the torque supporting surface 201 is contacted with the contact surface 12, the screw hole 204 is penetratingly arranged at the end part of the cutter bar 2 and penetrates through the torque supporting surface 201, the screw hole 204 is coaxially arranged with the cutter head screw hole 11, the cutter head 1 penetrates through the screw hole 204 through 1-2 screws 401 and the cutter head screw hole 11 to be fixed with the cutter bar 2, in the embodiment, the cutter head 1 is fixed with the cutter bar 2 through 1 screw 401, the angle between the screw 401 and the plane where the cutter head 1 is located is 60-90 degrees, and preferably, the screw 401 is perpendicular to the plane where the cutter head 1 is located.
The concave V-shaped positioning surface 202 corresponds to the convex V-shaped positioning surface 13 in position, the central positioning hole 203 corresponds to the central positioning cylinder 14 in position, the protruding portion of the convex V-shaped positioning surface 13 is located in the concave portion of the concave V-shaped positioning surface 202, the convex V-shaped positioning surface 13 is in contact with the concave V-shaped positioning surface 202, the bottom included angle of the concave V-shaped positioning surface 202 is 90 degrees to 140 degrees, the central positioning cylinder 14 is located in the central positioning hole 203, the depth of the central positioning hole 203 is larger than the axial length of the central positioning cylinder 14, and a certain length of gap is formed between the bottom surface of the central positioning hole 203 and the bottom surface of the central positioning cylinder 14 along the axis 3.
The cutter bar 2 is provided with at least one main chip groove 208 and one auxiliary chip groove 209 along the axis 3, the main chip groove 208 extends in a spiral shape along the axis 3, and the main chip groove 208 extends in a straight-through shape or in a straight-through shape at the front end part, and the internal spiral angle of the main chip groove 208 comprises a spiral angle I210 and a spiral angle II 211, wherein the angle of the spiral angle I210 is different from the angle of the spiral angle II 211, the angle beta 1 = 20-30 degrees and the angle beta 2 = 5-15 degrees of the spiral angle II 211, and the main chip groove 208 extends to the cutting edge 10 of the cutter head 1.
The inside of cutter arbor 2 is provided with the cooling channel 206 that is used for carrying the coolant liquid when drilling, and the tip outer wall surface of cutter arbor 2 is provided with two cooling guide slots 207 that arrange along the direction of axis 3, and the inside one end of cooling guide slots 207 is provided with cooling hole 205, and cooling channel 206 is provided with a main passageway along axis 3 in the inside of cutter arbor 2, and this main passageway extends to the tip portion that is close to central locating hole 203 and divide into two branch roads and extend to the inside cooling hole 205 of two cooling guide slots 207 respectively.
According to the rotary cutting tool with replaceable bit, the center positioning cylinder 14 of the bit 1 is inserted into the center positioning hole 203 of the bit holder 2, the direction of the bit 1 is adjusted so that the convex V-shaped positioning surface 13 is fully contacted with the concave V-shaped positioning surface 202, the contact surface 12 is fully contacted with the torque supporting surface 201, and the screw 401 is fixed through the screw hole 204 and the bit screw hole 11.
According to the rotary cutting tool of the replaceable bit as described above, the rotary cutting tool is turned on, and the handle 30 is held to drill the bit 1 into the region to be drilled while supplying the cooling liquid to the cooling passage 206; the rotary cutting tool with the double positioning structures of V-shaped surface positioning and cylindrical positioning has the advantages that the tool bit 1 is directly drilled in along the axis 3 without deviation in the drilling process, cooling liquid enters the cooling guide groove 207 through the cooling holes 205 to be divergently and evenly cooled in the drilling area, and cutting scraps are quickly and fully discharged from the chisel edge clearance surface 212 and/or the chisel edge scraps discharging surface 15 into the main scraps discharging groove 208 and/or the auxiliary scraps discharging groove 209.
Although the present invention has been described with reference to the above embodiments, it should be understood that the invention is not limited to the embodiments described above, but is capable of modification and variation without departing from the spirit and scope of the present invention.
Claims (9)
1. The rotary cutting tool with the replaceable tool bit comprises a tool bit (1) and a tool bar (2), wherein the tool bit (1) is detachably connected with the tool bar (2), the tool bit (1) and the tool bar (2) are provided with a common axis (3), the tool bar (2) is provided with a blade part (20) and a handle part (30) along the axis (3), the blade part (20) is connected with the tool bit (1), and the rotary cutting tool is characterized in that the tool bit (1) comprises a cutting edge (10), a chisel edge chip outlet surface (15), a contact surface (12), a tool bit screw hole (11), a circumferential cutting edge (16), a convex V-shaped positioning surface (13) and a center positioning cylinder (14), the cutting edge (10) and the chisel edge chip outlet surface (15) are arranged at the top of the tool bit (1), the contact surface (12) and a circumferential cutting edge strip (16) are arranged at the side surface of the tool bit (1) along the axis (3), the screw hole (11) is arranged in the tool bit (1) in a penetrating mode and penetrates through the contact surface (12), and the convex V-shaped positioning surface (13) and the center positioning surface (13) is arranged at the bottom of the tool bit (1). The cutter bar (2) comprises a chisel edge clearance surface (212), a torque supporting surface (201), a screw hole (204), a concave V-shaped positioning surface (202), a central positioning hole (203), a cooling channel (206), a cooling hole (205), a cooling guide groove (207), a main chip groove (208) and an auxiliary chip groove (209), wherein the chisel edge clearance surface (212) is connected with the chisel edge chip surface (15), the chisel edge clearance surface (212) and the chisel edge chip surface (15) are converged with the main chip groove (208) and/or the auxiliary chip groove (209), the torque supporting surface (201) is in contact with the contact surface (12), the screw hole (204) is penetratingly arranged at the end part of the cutter bar (2) and penetrates through the torque supporting surface (201), the cutter head (1) is fixed with the cutter bar (2) through the screw hole (204) and the cutter head (11) by a screw (401), the concave V-shaped positioning surface (202) corresponds to the position of the convex V-shaped positioning surface (13), the central positioning hole (203) corresponds to the position of the main chip groove (208) and/auxiliary chip groove (209), the concave V-shaped positioning surface (202) is positioned in the concave V-shaped positioning surface (13) and the central positioning surface (14) is positioned in the concave V-shaped positioning surface (13), the depth of the center positioning hole (203) is larger than the axial length of the center positioning cylinder (14); the cutter bar (2) is provided with at least one main chip groove (208) and one auxiliary chip groove (209) along the axis (3), the internal spiral angle of the main chip groove (208) comprises a spiral angle I (210) and a spiral angle II (211), the angle of the spiral angle I (210) is different from the angle of the spiral angle II (211), and the main chip groove (208) extends to the cutting edge (10) of the cutter head (1); a cooling channel (206) for conveying cooling liquid during drilling is formed in the cutter bar (2), two cooling guide grooves (207) are formed in the outer wall surface of the end part of the cutter bar (2) and are arranged along the direction of the axis (3), and a cooling hole (205) is formed in one end of the inside of the cooling guide groove (207); the cooling channel (206) is provided with a main channel along the axis (3) inside the tool bar (2).
2. The rotary cutting tool of claim 1, wherein the concave V-shaped locating surface (202) has a bottom included angle of 90 ° to 140 °.
3. A rotary cutting tool with replaceable cutting head according to claim 1, characterized in that the cutting head (1) is fixed with the holder (2) by 1-2 screws (401).
4. The rotary cutting tool with replaceable cutting head according to claim 1, wherein the cutting head (1) is fixed to the holder (2) by 1 screw (401), the screw (401) being at an angle of 60 ° to 90 ° to the plane of the cutting head (1).
5. The rotary cutting tool with replaceable cutting head according to claim 1, wherein the cutting head (1) is fixed to the holder (2) by 1 screw (401), the screw (401) being perpendicular to the plane of the cutting head (1).
6. The rotary cutting tool according to claim 1, wherein the main flutes (208) extend helically, straight through or front-end-portion-helically back-end-portion-straight through along the axis (3).
7. The rotary cutting tool according to claim 1, wherein the internal helix angle of the primary flute (208) is at an angle β1 = 20 ° -30 °, and the helix angle of the secondary flute (211) is at an angle β2 = 5 ° -15 °.
8. A tool bit mounting method of a rotary cutting tool with a replaceable tool bit, characterized in that according to any one of claims 1 to 7, a center positioning cylinder (14) of the tool bit (1) is inserted into a center positioning hole (203) of a tool bit (2), the direction of the tool bit (1) is adjusted so that a convex V-shaped positioning surface (13) is fully contacted with a concave V-shaped positioning surface (202), a contact surface (12) is fully contacted with a torque supporting surface (201), and a screw (401) is fixed through a screw hole (204) and a tool bit screw hole (11).
9. A rotary cutting method of a rotary cutting tool with replaceable cutting insert, characterized in that the rotary cutting tool with replaceable cutting insert according to any one of claims 1-7 is turned on, the handle (30) is held to drill the cutting insert (1) into the area to be drilled while cooling liquid is fed to the cooling channel (206); the rotary cutting tool has the advantages that the tool bit (1) is directly drilled along the axis (3) in the drilling process, deviation does not occur, cooling liquid enters the cooling guide groove (207) through the cooling hole (205) to be divergently output to sufficiently and uniformly cool a drilling area, and cutting scraps are rapidly and sufficiently discharged from the chisel edge clearance surface (212) and/or the chisel edge scraps discharging surface (15) into the main scraps discharging groove (208) and/or the auxiliary scraps discharging groove (209).
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710804385.0A CN107626960B (en) | 2017-09-08 | 2017-09-08 | Rotary cutting tool with replaceable tool bit, rotary cutting method thereof and tool bit mounting method |
| ES17912347T ES2816154T3 (en) | 2017-09-08 | 2017-12-28 | Rotary cutting tool with replaceable bit and rotary cutting method for it and bit installation method |
| DE212017000092.9U DE212017000092U1 (en) | 2017-09-08 | 2017-12-28 | Rotary cutting tool with exchangeable cutting head |
| PL17912347T PL3479940T3 (en) | 2017-09-08 | 2017-12-28 | Rotary cutting tool with replaceable bit and rotary cutting method thereof, and bit installation method |
| PCT/CN2017/119189 WO2019047433A1 (en) | 2017-09-08 | 2017-12-28 | Rotary cutting tool with replaceable bit and rotary cutting method thereof, and bit installation method |
| EP17912347.6A EP3479940B1 (en) | 2017-09-08 | 2017-12-28 | Rotary cutting tool with replaceable bit and rotary cutting method thereof, and bit installation method |
| US16/322,311 US10888933B2 (en) | 2017-09-08 | 2017-12-28 | Tool bit replaceable rotary cutting tool and rotary cutting method and tool bit mounting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710804385.0A CN107626960B (en) | 2017-09-08 | 2017-09-08 | Rotary cutting tool with replaceable tool bit, rotary cutting method thereof and tool bit mounting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107626960A CN107626960A (en) | 2018-01-26 |
| CN107626960B true CN107626960B (en) | 2023-08-04 |
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| CN201710804385.0A Active CN107626960B (en) | 2017-09-08 | 2017-09-08 | Rotary cutting tool with replaceable tool bit, rotary cutting method thereof and tool bit mounting method |
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| CN (1) | CN107626960B (en) |
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| CN115805324A (en) * | 2022-11-23 | 2023-03-17 | 浙江欣兴工具股份有限公司 | Replaceable blade |
| CN116810391B (en) * | 2023-07-05 | 2024-02-09 | 东莞市同进刀具科技有限公司 | Milling reamer with guiding function |
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| CN104384575A (en) * | 2014-11-05 | 2015-03-04 | 株洲钻石切削刀具股份有限公司 | Split rotating cutter |
| EP3150313A1 (en) * | 2015-09-30 | 2017-04-05 | Fraisa SA | Solid milling tool for machining rotating materials |
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| CN107626960A (en) | 2018-01-26 |
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Address after: 314301 No. 699, Yanshan Road, liuliji Town, Shupu Town, Haiyan County, Jiaxing City, Zhejiang Province Applicant after: Zhejiang Xinxing Tools Co.,Ltd. Address before: No. 33, Huanbei Road, liuliji Town, Shupu Town, Haiyan County, Jiaxing City, Zhejiang Province Applicant before: ZHEJIANG XINXING TOOLS Co.,Ltd. |
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