CN111516047A - Clean drilling system of carbon fiber reinforced composite's cooling - Google Patents
Clean drilling system of carbon fiber reinforced composite's cooling Download PDFInfo
- Publication number
- CN111516047A CN111516047A CN202010385736.0A CN202010385736A CN111516047A CN 111516047 A CN111516047 A CN 111516047A CN 202010385736 A CN202010385736 A CN 202010385736A CN 111516047 A CN111516047 A CN 111516047A
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- China
- Prior art keywords
- cooling
- cutter
- negative pressure
- carbon fiber
- fiber reinforced
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/16—Perforating by tool or tools of the drill type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/08—Means for treating work or cutting member to facilitate cutting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/18—Means for removing cut-out material or waste
- B26D7/1845—Means for removing cut-out material or waste by non mechanical means
- B26D7/1863—Means for removing cut-out material or waste by non mechanical means by suction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
- B26D7/2614—Means for mounting the cutting member
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- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
The invention discloses a cooling cleaning drilling system of a carbon fiber reinforced composite material, which comprises a processing unit, a cooling unit and a cleaning unit, wherein the processing unit comprises a cutter head and a cutter rod, a chip removal hole is formed on a spiral groove of the cutter rod close to the cutter head, a gas injection hole is formed on a rear cutter face of the cutter head, the hole diameter of the chip removal hole is larger than that of the gas injection hole, the cooling unit comprises a cooling gas source, the cleaning unit comprises a negative pressure cover and a gas pump, when the system works, the cooling gas source conveys cooling gas to the rear cutter face of the cutter head through the gas injection hole through a first channel so as to reduce high temperature generated by friction between the rear cutter face of the cutter head and a workpiece, meanwhile, the gas pump exhausts gas to enable an inner cavity of the negative pressure cover to form a negative pressure state, chips generated by processing enter a second channel through the chip removal hole under the action of negative pressure, the temperature of chip friction and drilling position can be effectively reduced, cutting heat is reduced, and the processing quality is improved.
Description
Technical Field
The invention relates to the technical field of carbon fiber reinforced composite material processing equipment, in particular to a cooling cleaning drilling system for a carbon fiber reinforced composite material.
Background
The carbon fiber reinforced composite material has the characteristics of light weight, high strength and the like, and is widely applied to the high-end manufacturing fields of aerospace, war industry, national defense and the like. However, the carbon fiber reinforced composite material cutting chips are powdery, and in the drilling process, the cutting temperature is high, the chip removal is not smooth, the cutting chips rub with the cutter and the hole wall, the cutter is quickly worn, and the defects of short service life of the cutter, poor quality of the hole wall and the like are caused. In the traditional drilling method, the powdered cuttings of the carbon fiber reinforced composite material are difficult to remove, and environmental pollution can be caused. Poor chip removal can lead to reduced tool durability, limiting drilling efficiency and quality to some extent. When the cutting temperature is higher than the glass transition temperature of the matrix resin, the defects of thermal damage are serious, and the phenomena of softening, ablation and the like are easy to generate, and are particularly more prominent when deep holes are drilled. At present, methods such as external dust collection and cooling liquid injection by using an internal cooling drill bit are mostly adopted for hole making of the carbon fiber reinforced composite material, but the problems of thermal damage and unsmooth chip removal in the drilling process cannot be solved, so that the processing quality of the carbon fiber reinforced composite material is reduced.
Therefore, how to change the problems of unsmooth chip removal and thermal damage in the drilling process of the carbon fiber reinforced composite material in the prior art becomes a problem to be solved by the technical personnel in the field.
Disclosure of Invention
The invention aims to provide a cooling, cleaning and drilling system for a carbon fiber reinforced composite material, which is used for solving the problems in the prior art, avoiding the phenomena of unsmooth chip removal and thermal damage in the drilling process of the carbon fiber reinforced composite material and improving the processing quality of the carbon fiber reinforced composite material.
In order to achieve the purpose, the invention provides the following scheme: the invention provides a cooling cleaning drilling system for carbon fiber reinforced composite materials, which comprises a processing unit, a cooling unit and a cleaning unit, wherein the processing unit comprises a cutter bit and a cutter bar, the cutter bar can be detachably connected with a processing machine tool, the cutter bit can drill the carbon fiber reinforced composite materials, the cutter bit is positioned on one side of the cutter bar, which is far away from the processing machine tool, the rear cutter face of the cutter bit is provided with a gas injection hole, a spiral groove of one end of the cutter bar, which is close to the cutter bit, is provided with a chip removal hole, the pore diameter of the chip removal hole is larger than that of the gas injection hole, a first channel and a second channel are arranged in the cutter bar, the cooling unit comprises a cooling gas source, the cooling gas source is communicated with the gas injection hole through the first channel, the cooling gas source can convey cooling gas into the first channel, and the cleaning, the negative pressure cover is communicated with the chip removal hole through the second channel, the air pump is communicated with the negative pressure cover, and a negative pressure state can be kept in the cavity of the negative pressure cover.
Preferably, the cooling unit further comprises a cold air cover, the first channel and the cooling air source are communicated with an inner cavity of the cold air cover, the cold air cover and the negative pressure cover are sleeved outside the cutter bar, one end of the cutter bar rotatably penetrates through the cold air cover and the negative pressure cover and is connected with the cutter head, and sealing elements are arranged between the cold air cover and the cutter bar and between the negative pressure cover and the cutter bar.
Preferably, the cutter arbor is kept away from the one end of tool bit sets up inlet port and chip outlet, the inlet port passes through the first passageway with the gas injection hole is linked together, the inlet port is located in the inner chamber of cold air cover, the chip outlet passes through the second passageway with the chip removal hole is linked together, the chip outlet is located in the inner chamber of negative pressure cover.
Preferably, the cold air cover can be connected with the processing machine tool, the negative pressure cover is located the bottom of cold air cover, the cold air cover the negative pressure cover is coaxial to be set up, the negative pressure cover is split type structure.
Preferably, the cutter arbor is double helix structure, first passageway, the second passageway is the heliciform, the clearance hole is located the helicla flute of cutter arbor.
Preferably, the radial cross section of the first channel and the radial cross section of the second channel are both elliptical.
Preferably, the processing unit further comprises a cutter handle, the cutter handle is detachably connected with the cutter bar, and the cutter handle can be connected with a processing machine tool.
Preferably, the cutter bar is connected with the cutter handle in an inserting mode.
Compared with the prior art, the invention has the following technical effects: the invention relates to a cooling cleaning drilling system of a carbon fiber reinforced composite material, which comprises a processing unit, cooling unit and cleaning unit, the processing unit includes tool bit and cutter arbor, the cutter arbor can be dismantled with the machine tool and be connected, the tool bit can carry out drilling to carbon-fibre composite, the tool bit is located the cutter arbor and keeps away from one side of machine tool, the gas injection hole has been seted up to the back knife face of tool bit, the chip removal hole has been seted up on the helicla flute of the one end that the cutter arbor is close to the cutter arbor, the aperture in chip removal hole is big than the aperture in gas injection hole, set up first passageway and second passageway in the cutter arbor, cooling unit includes cooling air source, cooling air source is linked together through first passageway and gas injection hole, cooling air source can be to the interior conveying cooling gas of first passageway, cleaning unit includes negative pressure cover and air pump, the negative pressure cover is linked together through second passageway and chip removal hole, the. When the cooling cleaning drilling system for the carbon fiber reinforced composite material works, a cooling gas source conveys cooling gas to the rear tool face of the tool bit through the first channel by using the gas injection hole so as to reduce high temperature generated by friction between the rear tool face of the tool bit and a workpiece, meanwhile, the air pump exhausts the gas to enable the inner cavity of the negative pressure cover to form a negative pressure state, chips generated by processing enter the second channel from the chip removal hole under the action of negative pressure, the purpose of rapidly collecting the chips is achieved, the conveying of the cooling gas and the absorption and chip removal are carried out simultaneously, namely, an air flow loop is formed, the chip friction and the temperature of a drilling part can be effectively reduced, the cutting heat is reduced, and the drilling quality of the carbon fiber reinforced composite material is.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic structural view of a cooling cleaning drilling system of a carbon fiber reinforced composite material of the present invention;
FIG. 2 is a schematic side view of a cool down clean drilling system of carbon fiber reinforced composite of the present invention;
FIG. 3 is a cutaway schematic view of a cooling, cleaning and drilling system of the carbon fiber reinforced composite of the present invention;
FIG. 4 is a schematic top view of a cooling clean drilling system of a carbon fiber reinforced composite of the present invention;
wherein, 1 is the tool bit, 2 is the cutter arbor, 3 is the chip removal hole, 4 is the gas injection hole, 5 is the first passageway, 6 is the second passageway, 7 is the cooling air source, 8 is the negative pressure cover, 9 is the air pump, 10 is the cold air cover, 11 is the handle of a knife, 12 is the machine tool.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a cooling, cleaning and drilling system for a carbon fiber reinforced composite material, which is used for solving the problems in the prior art, avoiding the phenomena of unsmooth chip removal and thermal damage in the drilling process of the carbon fiber reinforced composite material and improving the processing quality of the carbon fiber reinforced composite material.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Referring to fig. 1-4, fig. 1 is a schematic structural view of a cooling cleaning drilling system of a carbon fiber reinforced composite material of the present invention, fig. 2 is a schematic side view of the cooling cleaning drilling system of the carbon fiber reinforced composite material of the present invention, fig. 3 is a schematic sectional view of the cooling cleaning drilling system of the carbon fiber reinforced composite material of the present invention, and fig. 4 is a schematic top view of the cooling cleaning drilling system of the carbon fiber reinforced composite material of the present invention.
The invention provides a cooling cleaning drilling system for carbon fiber reinforced composite materials, which comprises a processing unit, a cooling unit and a cleaning unit, wherein the processing unit comprises a tool bit 1 and a tool bar 2, the tool bar 2 can be detachably connected with a processing machine tool 12, the tool bit 1 can drill the carbon fiber reinforced composite materials, the tool bit 1 is positioned on one side of the tool bar 2 far away from the processing machine tool 12, a gas injection hole 4 is formed in the rear tool face of the tool bit 1, a chip removal hole 3 is formed in a spiral groove at one end of the tool bar 2 close to the tool bit 1, the pore diameter of the chip removal hole 3 is larger than that of the gas injection hole 4, a first channel 5 and a second channel 6 are arranged in the tool bar 2, the cooling unit comprises a cooling gas source 7, the cooling gas source 7 is communicated with the gas injection hole 4 through the first channel 5, the cooling gas source 7 can convey cooling gas into the first channel 5, the cleaning unit comprises a negative pressure cover 8, the air pump 9 is communicated with the negative pressure cover 8, and the cavity of the negative pressure cover 8 can keep a negative pressure state.
When the cooling cleaning drilling system for the carbon fiber reinforced composite material works, a cooling gas source 7 conveys cooling gas to the rear tool face of the tool bit 1 through the first channel 5 by using the gas injection hole 4 so as to reduce high temperature generated by friction between the rear tool face of the tool bit 1 and a workpiece, meanwhile, the air pump 9 pumps air to enable the inner cavity of the negative pressure cover 8 to form a negative pressure state, chips generated by processing enter the second channel 6 from the chip removal hole 3 under the action of negative pressure, the purpose of rapidly collecting the chips is achieved, the conveying of the cooling gas and the chip absorption are carried out simultaneously, which is equivalent to the formation of an air flow loop, the temperature of chip friction and drilling parts can be effectively reduced, the cutting heat is reduced, and the drilling processing quality of the carbon fiber reinforced composite material is.
Specifically, the cooling unit further comprises a cold air cover 10, the first channel 5 and the cooling air source 7 are communicated with an inner cavity of the cold air cover 10, the cooling air source 7 conveys cooling air into the negative pressure cover 8, the cooling air in the negative pressure cover 8 is conveyed to the air injection hole 4 through the first channel 5, and the negative pressure cover 8 can buffer the cooling air to enable the cooling air to convey stable air flow. The cold air cover 10 and the negative pressure cover 8 are sleeved outside the cutter bar 2, one end of the cutter bar 2 rotatably penetrates through the cold air cover 10 and the negative pressure cover 8 and is connected with the cutter head 1, and sealing elements are arranged between the cold air cover 10 and the cutter bar 2 and between the negative pressure cover 8 and the cutter bar 2, so that the negative pressure cover 8 and the cold air cover 10 are prevented from being leaked, and the working efficiency of the system is prevented from being influenced.
More specifically, one end of the cutter bar 2, which is far away from the cutter head 1, is provided with an air inlet hole and a chip outlet hole, the air inlet hole is communicated with an air injection hole 4 through a first channel 5, the air inlet hole is positioned in the inner cavity of the cold air cover 10, the chip outlet hole is communicated with a chip removal hole 3 through a second channel 6, the chip outlet hole is positioned in the inner cavity of the negative pressure cover 8, and the chip outlet hole and the air inlet hole are respectively positioned on two opposite sides of the cutter bar 2, so that the structural stability of the.
In this embodiment, the cold air cover 10 can be connected with the processing machine 12, the negative pressure cover 8 is located at the bottom of the cold air cover 10, the cold air cover 10 and the negative pressure cover 8 are coaxially arranged, the system stability is further enhanced, and the negative pressure cover 8 is of a split structure and is convenient to detach and clean.
Wherein, cutter arbor 2 is double helix structure, and first passageway 5, second passageway 6 are the heliciform, and chip removal hole 3 is located the heliciform groove of cutter arbor 2, and second passageway 6 is located the heliciform protruding structure of cutter arbor 2, and second passageway 6 extends to the heliciform groove department that is close to tool bit 1 and is linked together with chip removal hole 3, reduces the processing degree of difficulty, practices thrift manufacturing cost.
In addition, the first passage 5 and the second passage 6 have elliptical radial cross sections, and the cross section of the first passage 5 is increased as much as possible while the structural strength of the tool holder 2 is ensured, so that the frictional heat between the flank of the tool bit 1 and the workpiece is reduced while the amount of cold air to be injected is ensured, and the cross section of the second passage 6 is increased as much as possible, so that the chips can be smoothly discharged.
Further, the processing unit still includes handle of a knife 11, 11 and the 2 detachable connections of cutter arbor of handle of a knife, and handle of a knife 11 can link to each other with machine tool 12, sets up handle of a knife 11, and the cutter arbor 2 of being convenient for links to each other with machine tool 12.
In other specific embodiments of the invention, the cutter bar 2 is connected with the cutter handle 11 in an inserting manner, so that the disassembly and the assembly are convenient, and the labor burden of operators is reduced.
When the cooling cleaning drilling system of the carbon fiber reinforced composite material works, a cooling gas source 7 conveys cooling gas to the rear tool face of the tool bit 1 through the first channel 5 by using the gas injection hole 4 so as to reduce high temperature generated by friction between the rear tool face of the tool bit 1 and a workpiece, meanwhile, the air pump 9 extracts air to enable the inner cavity of the negative pressure cover 8 to form a negative pressure state, and chips generated by processing enter the second channel 6 from the chip removal hole 3 under the action of negative pressure so as to achieve the purpose of rapidly collecting the chips. Compared with the drilling processing of the carbon fiber reinforced composite material in the prior art, particularly the deep hole processing, the friction between a cutter and a workpiece in a closed hole generates high temperature, the material is easy to ablate, and a large amount of cuttings are difficult to remove in time.
The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (8)
1. The utility model provides a clean drilling system of carbon fiber reinforced composite's cooling which characterized in that: including processing unit, cooling unit and clean unit, the processing unit includes tool bit and cutter arbor, the cutter arbor can be dismantled with the machine tool and be connected, the tool bit can carry out drilling to carbon-fibre composite, the cutter arbor is located one side that the machine tool was kept away from to the cutter arbor, the gas injection hole has been seted up to the back knife face of tool bit, the cutter arbor is close to seted up the chip removal hole on the helicla flute of the one end of cutter arbor, the aperture in chip removal hole is than the aperture in gas injection hole is big, set up first passageway and second passageway in the cutter arbor, the cooling unit includes cooling gas source, cooling gas source is linked together through first passageway with the gas injection hole, cooling gas source can to carry cooling gas in the first passageway, clean unit includes negative pressure hood and air pump, the negative pressure hood passes through the second passageway with the chip removal hole is linked together, the air pump is communicated with the negative pressure cover, and a cavity of the negative pressure cover can keep a negative pressure state.
2. The cooling, cleaning and drilling system of carbon fiber reinforced composite material as claimed in claim 1, wherein: the cooling unit further comprises a cold air cover, the first channel and the cooling air source are communicated with an inner cavity of the cold air cover, the cold air cover and the negative pressure cover are sleeved outside the cutter bar, one end of the cutter bar rotatably penetrates through the cold air cover and the negative pressure cover and is connected with the cutter head, and sealing elements are arranged between the cold air cover and the cutter bar and between the negative pressure cover and the cutter bar.
3. The cooling, cleaning and drilling system of carbon fiber reinforced composite material as claimed in claim 2, characterized in that: the cutter arbor is kept away from the one end of tool bit sets up inlet port and chip outlet, the inlet port passes through the first passageway with the gas injection hole is linked together, the inlet port is located in the inner chamber of cold air cover, the chip outlet passes through the second passageway with the chip removal hole is linked together, the chip outlet is located in the inner chamber of negative pressure cover.
4. The cooling, cleaning and drilling system of carbon fiber reinforced composite material as recited in claim 3, characterized in that: the cold air cover can be connected with the processing machine tool, the negative pressure cover is located at the bottom of the cold air cover, the cold air cover and the negative pressure cover are coaxially arranged, and the negative pressure cover is of a split structure.
5. The cooling, cleaning and drilling system of carbon fiber reinforced composite material as claimed in claim 1, wherein: the cutter arbor is double helix structure, first passageway, the second passageway is the heliciform, the chip removal hole is located the helicla flute of cutter arbor.
6. The cooling, cleaning and drilling system of carbon fiber reinforced composite material as recited in claim 5, characterized in that: the radial cross sections of the first channel and the second channel are both elliptical.
7. The cooling, cleaning and drilling system of carbon fiber reinforced composite material as claimed in claim 1, wherein: the processing unit further comprises a cutter handle, the cutter handle is detachably connected with the cutter bar, and the cutter handle can be connected with a processing machine tool.
8. The cooling, cleaning and drilling system of carbon fiber reinforced composite material as recited in claim 7, characterized in that: the cutter bar is connected with the cutter handle in an inserting mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010385736.0A CN111516047A (en) | 2020-05-09 | 2020-05-09 | Clean drilling system of carbon fiber reinforced composite's cooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010385736.0A CN111516047A (en) | 2020-05-09 | 2020-05-09 | Clean drilling system of carbon fiber reinforced composite's cooling |
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| Publication Number | Publication Date |
|---|---|
| CN111516047A true CN111516047A (en) | 2020-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010385736.0A Pending CN111516047A (en) | 2020-05-09 | 2020-05-09 | Clean drilling system of carbon fiber reinforced composite's cooling |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113458450A (en) * | 2021-07-22 | 2021-10-01 | 浙江德明汽车部件有限公司 | Machining center for quickly drilling automobile parts and using method thereof |
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Application publication date: 20200811 |
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| RJ01 | Rejection of invention patent application after publication |