CN111267189A - Woodworking milling cutter and machining method thereof - Google Patents
Woodworking milling cutter and machining method thereof Download PDFInfo
- Publication number
- CN111267189A CN111267189A CN202010241424.2A CN202010241424A CN111267189A CN 111267189 A CN111267189 A CN 111267189A CN 202010241424 A CN202010241424 A CN 202010241424A CN 111267189 A CN111267189 A CN 111267189A
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- blade
- cutter
- milling cutter
- woodworking milling
- welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
- B27G13/00—Cutter blocks; Other rotary cutting tools
- B27G13/02—Cutter blocks; Other rotary cutting tools in the shape of long arbors, i.e. cylinder cutting blocks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
- B23P15/34—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools milling cutters
Abstract
The invention discloses a woodworking milling cutter which comprises a cutter body and a blade, wherein the blade is fixedly welded on the cutter body, the cutter body is a hard alloy rod, and the blade is a diamond composite blade. The woodworking milling cutter has better rigidity, torsion resistance and abrasive resistance of the cutting edge, and can meet different requirements of a wood processing process. The invention also discloses a processing method of the woodworking milling cutter, the cutter can be rapidly processed in batches by using the processing method, and the woodworking milling cutter has the characteristics of high yield, stable quality and safe use.
Description
Technical Field
The invention relates to the field of cutter production, in particular to a woodworking milling cutter; the invention also relates to a processing method of the cutter.
Background
The traditional woodworking processing industry generally installs the woodworking milling cutter in equipment such as industrial gong bed, computer engraving machine, portable gong machine, etc. and is used for processing non-metallic materials such as furniture such as log, artificial board, organic glass, etc. and home decoration wire, and the traditional woodworking milling cutter is a straight knife formed by welding a knife body and a blade, wherein the knife body is made of steel material, the blade is made of hard alloy material, and the blade has two blades or three blades. Along with the rapid development of the woodworking processing industry in recent years, a plurality of furniture industries use more intelligent computer engraving machines, the processing centers of the computer engraving machines are more and more intelligent, and can complete the operations of grooving, cutting, trimming, drilling, engraving, bottom cleaning and the like on wood. Furthermore, in order to improve the quality of the cutter, a material with higher hardness is required to be used, and the material with high hardness is easy to crack when the cutter blade is welded in the machining process, so that the production efficiency is greatly reduced, and the consumption of materials and the increase of the rejection rate are increased. Therefore, the wood milling cutter with good hardness and wear resistance needs to be invented to meet the market demand.
Disclosure of Invention
The invention aims to provide a woodworking milling cutter which is better in rigidity, torsion resistance and abrasive resistance of a cutting edge and can meet different requirements of a wood processing process.
The invention also aims to provide a processing method of the woodworking milling cutter, which can be used for rapidly processing the cutter in batches and has the characteristics of high yield, stable quality and safe use.
The former technical scheme adopted by the invention is as follows:
the woodworking milling cutter comprises a cutter body and a blade, wherein the blade is fixedly welded on the cutter body, the cutter body is a hard alloy rod, and the blade is a diamond composite blade.
Furthermore, the blades are two or three, and are uniformly distributed at the front end of the cutter body.
The latter technical scheme adopted by the invention is as follows:
a processing method of a woodworking milling cutter comprises the following processing steps: (1) chamfering; (2) performing through grinding on the alloy; (3) grinding the outer diameter; (4) grooving; (5) ultrasonic cleaning; (6) welding a blade; (7) sand blasting; (8) ultrasonic cleaning; (9) and (6) grinding.
Further, in the step (2), the diameter of the section of the cutter body is ground to 12-13 mm by using a centerless grinder.
Further, in the step (4), a blade groove is formed in the cutter body by using a 5-shaft linkage grinding machine, the rotating speed of a main shaft is 6000-15000 r/min, and the feeding speed is 5-20 m/min.
Further, in the step (6), the diamond composite blade is brazed by using a vacuum furnace.
Further, the step (6) comprises the following steps:
(6.1) coating soldering paste on the welding seam of the cutter body (1) where the blade needs to be welded, and placing the blade in a proper position;
(6.2) placing the cutter body adhered with the blade into a vacuum furnace for welding, and keeping an air-pumping state in the welding process;
and (6.3) placing the cutter subjected to welding in a vacuum furnace, cooling to a certain temperature, taking out and continuously cooling.
Further, in the step (6.2), the temperature in the vacuum furnace starts to rise when the vacuum degree in the vacuum furnace reaches 10Pa, the temperature in the vacuum furnace rises to 500 ℃ within 10 minutes, the temperature is kept for 5-11 minutes, and the temperature in the vacuum furnace rises to 700-730 ℃ again, and the temperature is kept for 3-7 minutes.
Further, in the step (9), a 5-axis linkage electric spark machine is adopted for processing during grinding, and red copper or graphite is used as an electrode.
Further, after the step (9), the step (10) of wax soaking is also included; typing in step (11); and (12) packaging.
Compared with the prior art, the invention has the beneficial effects that:
1. the woodworking milling cutter comprises a cutter body and a blade, wherein the blade is fixedly welded on the cutter body, the cutter body is a hard alloy rod, and the blade is a diamond composite blade. After the cutter body and the cutter blade are manufactured by using the materials, the rigidity of the cutter and the abrasion resistance of the cutting edge are better, and different requirements of a wood processing process can be met.
2. The processing method of the woodworking milling cutter comprises the processing steps of chamfering, alloy through-grinding, outer diameter grinding, grooving, ultrasonic cleaning, welding, sand blasting, ultrasonic cleaning, grinding and the like.
Drawings
FIG. 1 is a schematic view of the structure of the present invention 1;
fig. 2 is a schematic structural diagram 2 of the present invention.
Detailed Description
The technical solution of the present invention will be described in further detail with reference to the following embodiments, but the present invention is not limited thereto.
Referring to fig. 1 and 2, the woodworking milling cutter of the invention comprises a cutter body 1 and a blade 2, wherein the blade 2 is welded and fixed on the cutter body 1, the cutter body 1 is a hard alloy rod, and the blade 2 is a diamond composite blade. The cutter body 1 made of hard alloy has the beneficial effects that: 1. the diameter of the cutter can be reduced, the wood loss is effectively reduced, the environment is protected, and the production efficiency is improved; 2. in the welding process, the hard alloy is not easy to deform due to welding stress, the diamond blade is not easy to crack, the rejection rate can be effectively reduced, the quality stability and the torsion resistance of the cutter are improved, and the using and feeding speed of the woodworking milling cutter is 1-2 times faster than that of the traditional woodworking milling cutter; 3. the woodworking milling cutter has strong rigidity, is not easy to break, further improves the precision and reduces the times of cutter changing. The blade 2 is made of a diamond composite material, the hardness of the diamond composite material is 8-12 times that of hard alloy, the heat conductivity coefficient of the diamond composite material is 1.5-9 times that of the hard alloy, the thermal expansion coefficient of the diamond composite material is only 1/5 times that of the hard alloy, the affinity between a diamond cutter and a non-metal is small, and chips are not easy to adhere to a tool tip to form a chip accumulation tumor during cutting in the machining process. In addition, the diamond composite blade can be repeatedly polished, so that the service life of the woodworking milling cutter is longer than that of a traditional hard alloy cutter and is about 100 to 250 times of that of the traditional hard alloy cutter.
The number of the blades 2 is two or three, and the blades 2 are uniformly distributed at the front end of the cutter body 1.
The invention discloses a processing method of a woodworking milling cutter, which is characterized by comprising the following processing steps:
(1) and (6) chamfering. The sharp edge at one end of the cutter body 1 is inverted by 1 multiplied by 45 degrees by a grinding wheel machine.
(2) And (5) carrying out through grinding on the alloy. Wherein, the diameter of the cross section of the cutter body is ground to 12-13 mm by a centerless grinder during grinding. Further, the diameter of the section of the cutter body is ground to 12.7 mm.
(3) And grinding the outer diameter. The cutter body 1 is placed in a segment difference grinding machine and is ground to the diameter size of a product required by a drawing by using the rotating speed of 5000-10000 revolutions per minute and the feeding speed of 10-15 meters per minute.
(4) And (4) slotting. And during slotting, a 5-shaft linkage grinding machine is used for slotting a blade slot on the cutter body, the rotating speed of the main shaft is 6000-15000 r/min, and the feeding speed is 5-20 m/min. The grooving process requires one-time machine-shaping.
(5) And (4) ultrasonic cleaning. Cleaning the welding surface of the cutter body 1 and the blade 2, and drying the water of the cutter body 1 and the blade 2 for later use.
(6) And (6) welding the blade. Wherein, the diamond composite blade is brazed by using a vacuum furnace during welding. In general, two manual brazing methods, induction brazing and flame brazing, are mostly used in the process of machining a cutter. In the brazing process, the brazing is difficult for the following reasons: 1. the diamond composite blade is thin, the thickness is about 0.8mm generally, the brazing temperature cannot be too high, the diamond composite blade is easy to damage due to overheating temperature, and the temperature generally cannot exceed 760 ℃. 2. When the insert 2 on one side is heated after the completion of the insert 2 on the other side, one side of the brazed insert is easily melted, and the heating is not uniform, which may cause brazing defects. Aiming at the defects of manual induction brazing, the vacuum furnace special for welding by adopting the diamond composite blade can be used for avoiding the defects. The special vacuum furnace for welding the diamond composite blade has the following advantages: 1. the heating is uniform, the temperature control is accurate, and the problem of overheating temperature can not occur; 2. the batch production can be realized, and more than 200 cutters can be produced at one time; 3. the operation is convenient, and more conveniently, a plurality of blades on the same woodworking milling cutter can be welded simultaneously. 4. The welding strength of the blade and the carrier is increased, welding is not easy to fall off, and welding consistency is guaranteed.
The welding comprises the following steps:
(6.1) coating soldering paste on the welding seam of the cutter body 1, which needs to be welded with the blade 2, and putting the blade 2 in a proper position.
(6.2) placing the cutter body 1 attached with the blade 2 into a vacuum furnace for welding, and keeping an air-pumping state in the welding process. Wherein. And (3) starting to heat the temperature in the vacuum furnace when the vacuum degree in the vacuum furnace reaches 10Pa, heating the temperature in the vacuum furnace to 500 ℃ within 10 minutes, preserving the heat for 5-11 minutes, and heating the temperature in the vacuum furnace to 700-730 ℃ again, and preserving the heat for 3-7 minutes. The heating temperature and the heat preservation time during welding can be properly adjusted according to the actual conditions of the power of each vacuum furnace, the number of parts to be welded at one time, the size of a workpiece and the like.
Preferably, the temperature in the vacuum furnace is increased to 200 ℃ within 2 minutes when the vacuum degree in the vacuum furnace reaches 10Pa, the temperature in the vacuum furnace is increased to 500 ℃ within 10 minutes and is kept for 8 minutes, and the temperature in the vacuum furnace is increased to the welding temperature and is kept for 5 minutes again.
And (6.3) placing the cutter subjected to welding in a vacuum furnace, cooling to a certain temperature, taking out and continuously cooling. Wherein, the cutter which finishes welding is placed in a vacuum furnace to be cooled to 200 ℃ and then taken out to be continuously cooled. The whole sintering process probably needs 70-80 minutes, more than 200 finished cutters can be obtained each time, the production efficiency is greatly improved, the finished product rate of the produced finished cutters is higher, and the quality is more stable.
(7) And (6) sand blasting. And (3) carrying out surface treatment on the cutter body 1, and removing welding slag left on the cutter body 1 by welding.
(8) And (4) ultrasonic cleaning. And (4) putting the cutter into an automatic cleaning machine for cleaning, and drying the cutter after the cutter is cleaned by the automatic cleaning machine.
(9) And (6) grinding. During grinding, a 5-axis linkage electric spark machine is adopted for processing, and red copper or graphite is used as an electrode. For precision control of the woodworking milling cutter, the key step is to form and machine the cutting edge of the blade 2, generally, an electric spark forming process is adopted, the shape of the cutting edge of the blade 2 is formed through copying of the shape of an electrode, and a grinding process is directly related to technical indexes of profile precision, surface roughness, cylindrical run-out and the like of the cutter.
During grinding, an electric spark discharge non-contact type machining mode is adopted, the machining mode is divided into rough machining and finish machining, and corresponding discharge parameters are respectively adopted to obtain better cutting edge quality. Wherein the pulse current of rough machining is 45A, the clearance control rate is 20%, the approaching speed is 18mm/s, the inlet speed is 0.2mm/s, and the maximum speed is 18 mm/s. The pulse current for finish machining was 10A, the gap control rate was 20%, the approach speed was 18mm/s, the entrance velocity was 0.05mm/s, and the maximum velocity was 18 mm/s. For the processing of the woodworking milling cutter with multiple cutting edges, an automatic infinite dividing device and an automatic measuring dividing device are required to be equipped.
In order to ensure the excircle runout of the cutter, the electrode is preferably turned once the cutting edge of the cutter is finished by finish machining, the electrode is compensated in a machining coordinate system for abrasion, and the actual excircle runout requirement of the cutter after machining is less than or equal to 0.015 mm.
(10) And (5) wax soaking. And (4) carrying out wax soaking treatment on the milled woodworking milling cutter.
(11) In the typing, information such as the type and trademark of the tool can be typed by laser typing on the shank of the tool body 1.
(12) And (5) packaging, namely packaging and warehousing the cutter after the cutter which finishes the procedures is soaked in the anti-rust oil.
The above description is only exemplary of the invention, and any modification, equivalent replacement, and improvement made within the spirit and scope of the present invention should be considered within the scope of the present invention.
Claims (10)
1. The woodworking milling cutter comprises a cutter body (1) and a blade (2), wherein the blade (2) is fixedly welded on the cutter body (1), and the woodworking milling cutter is characterized in that the cutter body (1) is a hard alloy rod, and the blade (2) is a diamond composite blade.
2. The woodworking milling cutter according to claim 1, wherein the blades (2) are two or three, and the blades (2) are uniformly distributed at the front end of the cutter body (1).
3. The method of claim 1, comprising the steps of: (1) chamfering; (2) performing through grinding on the alloy; (3) grinding the outer diameter; (4) grooving; (5) ultrasonic cleaning; (6) welding a blade; (7) sand blasting; (8) ultrasonic cleaning; (9) and (6) grinding.
4. The method for processing the woodworking milling cutter as claimed in claim 3, wherein in the step (2), the cross-sectional diameter of the cutter body is ground to 12-13 mm by using a centerless grinder.
5. The method for processing the woodworking milling cutter as claimed in claim 3, wherein in the step (4), a 5-shaft linkage grinding machine is used for forming the blade groove in the cutter body, the rotating speed of a main shaft is 6000-15000 r/min, and the feeding speed is 5-20 m/min.
6. The woodworking milling cutter machining method of claim 3, wherein in the step (6), the diamond composite blade is brazed by using a vacuum furnace.
7. The woodworking milling cutter machining method of claim 3, wherein the step (6) comprises the steps of:
(6.1) coating soldering paste on the welding seam of the cutter body (1) where the blade (2) needs to be welded, and placing the blade (2) at a proper position;
(6.2) placing the cutter body (1) attached with the blade (2) into a vacuum furnace for welding, and keeping an air-pumping state in the welding process;
and (6.3) placing the cutter subjected to welding in a vacuum furnace, cooling to a certain temperature, taking out and continuously cooling.
8. The method for processing the woodworking milling cutter as claimed in claim 7, wherein in the step (6.2), the temperature in the vacuum furnace starts to rise when the vacuum degree in the vacuum furnace reaches 10Pa, the temperature in the vacuum furnace is increased to 500 ℃ within 10 minutes and is kept for 5-11 minutes, and the temperature in the vacuum furnace is increased to the welding temperature of 700-730 ℃ and is kept for 3-7 minutes again.
9. The woodworking milling cutter machining method according to claim 3, wherein in the step (9), a 5-axis-linked electric spark machine is used for machining during grinding, and red copper or graphite is used as an electrode.
10. The woodworking milling cutter machining method as claimed in claim 3, wherein the step (9) is followed by the step (10) of waxing; typing in step (11); and (12) packaging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010241424.2A CN111267189A (en) | 2020-03-31 | 2020-03-31 | Woodworking milling cutter and machining method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010241424.2A CN111267189A (en) | 2020-03-31 | 2020-03-31 | Woodworking milling cutter and machining method thereof |
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| Publication Number | Publication Date |
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| CN111267189A true CN111267189A (en) | 2020-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010241424.2A Pending CN111267189A (en) | 2020-03-31 | 2020-03-31 | Woodworking milling cutter and machining method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112605438A (en) * | 2020-11-27 | 2021-04-06 | 贵州西南工具(集团)有限公司 | Machining process of reamer with guide function |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003127019A (en) * | 2001-10-23 | 2003-05-08 | Micro Diamond Kk | Endmill having single-crystal diamond provided at its top |
| CN105834499A (en) * | 2016-04-28 | 2016-08-10 | 哈尔滨理工大学 | Staggered PCD milling cutter used for processing reinforced fiber polymer and method |
| CN109048244A (en) * | 2018-09-25 | 2018-12-21 | 汇专科技集团股份有限公司 | A kind of production method of polycrystal diamond cutter |
| CN110919056A (en) * | 2018-09-19 | 2020-03-27 | 湖北三翔超硬材料股份有限公司 | Multi-edge diamond milling cutter and preparation method and application thereof |
-
2020
- 2020-03-31 CN CN202010241424.2A patent/CN111267189A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003127019A (en) * | 2001-10-23 | 2003-05-08 | Micro Diamond Kk | Endmill having single-crystal diamond provided at its top |
| CN105834499A (en) * | 2016-04-28 | 2016-08-10 | 哈尔滨理工大学 | Staggered PCD milling cutter used for processing reinforced fiber polymer and method |
| CN110919056A (en) * | 2018-09-19 | 2020-03-27 | 湖北三翔超硬材料股份有限公司 | Multi-edge diamond milling cutter and preparation method and application thereof |
| CN109048244A (en) * | 2018-09-25 | 2018-12-21 | 汇专科技集团股份有限公司 | A kind of production method of polycrystal diamond cutter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112605438A (en) * | 2020-11-27 | 2021-04-06 | 贵州西南工具(集团)有限公司 | Machining process of reamer with guide function |
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Application publication date: 20200612 |