CN111975055A - Multi-section drill bit and manufacturing method and using method thereof - Google Patents
Multi-section drill bit and manufacturing method and using method thereof Download PDFInfo
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- CN111975055A CN111975055A CN201910441001.2A CN201910441001A CN111975055A CN 111975055 A CN111975055 A CN 111975055A CN 201910441001 A CN201910441001 A CN 201910441001A CN 111975055 A CN111975055 A CN 111975055A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/08—Drills combined with tool parts or tools for performing additional working
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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
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention relates to a multi-section drill bit and a manufacturing method and a using method thereof, wherein the multi-section drill bit comprises a drill bit part (1) and a clamping part (2) which are respectively arranged at the head and the tail of the drill bit, the drill bit part (1) comprises a drilling section (11), a polishing section (12) and a coating section (13), and the polishing section is a rough surface and can polish the inner wall of a hole in the rotating process; the surface of the coating section is provided with a coating which can rub against the inner wall of the hole in the rotating process and be attached to the inner wall of the hole in a powder form; the drilling section, the polishing section, the coating section and the clamping part of the drill rod part are of an integrated structure; the coating section comprises a coating section body and a coating, the diameter of the coating section body is smaller than that of the grinding section, the outer surface of the coating section body is wrapped with a circle of coating, and the coating is made of zinc alloy materials. The invention can polish the inner wall of the hole to remove burrs and quickly coat a coating, effectively prevents the corrosion of the carbon steel intermediate layer and simplifies the construction process.
Description
Technical Field
The invention relates to a cutting tool, in particular to a multi-section type drill bit, a manufacturing method and a using method thereof, which are used for drilling, grinding and coating corrosion-resistant alloy powder on various plates containing carbon steel intermediate layers.
Background
The composite board, the zinc-coated board, the color-coated board, the tin-plated board and other boards generally need to be drilled in the use process, after the drilling is completed, the carbon steel intermediate layer of the board can be exposed on the inner wall of the hole, and the carbon steel material is easy to corrode and rust in the air, so that measures must be taken for protection.
Generally, the corrosion protection of the inner wall of the hole is realized by adopting coating or other surface treatment methods, but most of the treatment methods have higher cost, lower construction efficiency and longer coating curing period, and easily cause pollution to the surface of the plate to influence the appearance of the plate. In addition, under the condition of small aperture, the conventional surface treatment method cannot ensure the thickness of the coating covering the inner wall of the hole due to construction space, burrs on the inner wall of the hole and the like, and influences the anti-corrosion effect to a certain extent; on the other hand, too thick coating also affects the hole inner diameter size, resulting in reduced drilling accuracy.
Disclosure of Invention
One of the purposes of the invention is to provide a multi-section drill bit, wherein a grinding section and a coating section are sequentially added between a drilling section and a clamping part of a drill rod part, and the surface of the coating section is provided with a zinc alloy corrosion-resistant coating;
The invention also aims to provide a manufacturing method of the multi-section drill bit, a grinding section is generated by etching or grinding, and a coating section is generated by cutting and spraying a coating;
the invention also aims to provide a using method of the multi-section drill bit, which is characterized in that after a plate with a carbon steel intermediate layer is drilled, the inner wall of the hole is polished according to steps and coated with a corrosion-resistant material, so that the corrosion of the carbon steel intermediate layer can be effectively prevented, and the pollution to the surface of the plate can be avoided.
The invention is realized by the following steps:
a multi-section drill bit comprises a drill rod part and a clamping part, wherein the drill rod part and the clamping part are respectively arranged at the head and the tail of the drill bit, the drill rod part comprises a drilling section and is used for drilling a plate, and the clamping part is used for installing the drill bit on a rotating device capable of clamping the drill bit;
the drill rod part further comprises a grinding section and a coating section, and the grinding section and the coating section are sequentially arranged between the drilling section and the clamping part; the grinding section is a rough surface and can grind the inner wall of the hole in the rotating process; the surface of the coating section is provided with a coating which can rub the inner wall of the hole in the rotating process and be attached to the inner wall of the hole in a powder form; the drilling section, the polishing section, the coating section and the clamping part of the drill rod part are of an integrated structure.
The length of the drilling section is not more than one third of the total length of the drill rod part.
The length of the grinding section is not more than one third of the total length of the drill rod part, the thickness of the rough surface of the grinding section is not more than one tenth of the diameter of the drill rod part, and the surface of the grinding section is flush with the surface of the tail part of the drilling section.
The coating section comprises a coating section body and a coating, the diameter of the coating section body is smaller than that of the grinding section, the outer surface of the coating section body is wrapped with a circle of coating, the thickness of the coating does not exceed one tenth of the diameter of the drill rod part, and the surface of the coating section is flush with the surface of the grinding section.
The coating is composed of a zinc alloy material.
The length of the coating section is no more than one third of the total length of the drill rod part.
The length of the clamping part is matched with that of the drill rod part, so that the drill bit can rotate stably.
A manufacturing approach of the multi-section bit, form the rough surface by etching or polishing in the smooth part close to drilling section of the drilling rod portion, the depth of processing does not exceed one tenth of the diameter of the drilling rod portion, the length of processing does not exceed one third of the whole length of the drilling rod portion, form and polish the section; cutting the smooth part between the grinding section and the clamping part, wherein the cutting depth is not more than one tenth of the diameter of the drill rod part, and the cutting length is not more than one third of the total length of the drill rod part to form a coating section body, then covering a coating on the outer surface of the coating section body in a spraying, surfacing, adhering or mechanical nesting mode, and grinding the coating after drying until the surface of the coating section is flush with the grinding section.
A method for using a multi-section drill bit comprises the following steps:
firstly, the clamping part of the multi-section drill bit is fixed on a rotating device, so that the drill bit rotates;
secondly, the drilling section of the drill bit is aligned with the plate to drill, and drilling is finished;
thirdly, the drill bit continues to push the plate, so that the polishing section enters the hole, the drill bit rotates to enable the polishing section to polish the inner wall of the hole, the drill bit repeatedly enters and exits relative to the hole, so that the polishing section polishes the inner wall of the hole for multiple times until the inner wall of the hole is free of burrs and a rough surface is formed, and polishing is finished;
fourthly, the drill bit continues to push the plate, so that the coating section enters the hole, the drill bit rotates to enable the coating section to rub the inner wall of the hole, the drill bit repeatedly enters and exits relative to the hole to enable the coating of the coating layer to rub the inner wall of the hole for multiple times, and the coating falls off in a powder form and adheres to the inner wall of the hole to finish coating;
and fifthly, closing the rotating device, stopping the drill bit from rotating, and withdrawing the drill bit from the hole.
When the coating section rubs with the inner wall of the hole, the drill bit and the plate can relatively move along the radial direction of the hole so as to enhance the friction force.
The multi-section drill bit comprises a drill rod part and a clamping part, wherein the drill rod part sequentially comprises a drilling section, a polishing section and a coating section, and the multi-section structure can also finish deburring, polishing and coating corrosion-resistant materials on the inner wall of a hole when the plate is drilled; the manufacturing method of the multi-section drill bit adds the processing steps of the grinding section and the coating end in the conventional manufacturing process of the drill bit, and the process flow is relatively simplified and easy to realize; the use method of the multi-section drill bit is characterized in that drilling, polishing and corrosion-resistant material coating processing of a plate can be completed through one part, particularly, in the coating process, corrosion-resistant alloy powder in a coating is directly attached to the inner wall of a hole through high-speed friction without drying and curing, the plate can be directly used after being processed, the corrosion-resistant performance requirement of the inner wall of the hole of the plate is met, meanwhile, the construction process of coating the corrosion-resistant material on the inner wall of the hole is simplified, and the drilling precision is also ensured; in addition, the whole using process does not need to carry out the conventional coating procedure, thereby reducing the volatilization of toxic and harmful substances and reducing the harm to human bodies and the environment.
Drawings
FIG. 1 is a schematic view of a multi-section drill bit according to the present invention;
in the figure, 1 drill rod part, 11 drill hole sections, 12 grinding part, 13 coating part and 2 clamping part.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
Referring to fig. 1, a multistage formula drill bit, includes drilling rod portion 1 and clamping part 2, sets up respectively at the head and the afterbody of drill bit, and drilling rod portion 1 is used for drilling, polishing and coating panel, and clamping part 2 is used for installing the drill bit on the rotary device (such as electric drill rifle or drilling machine) that can centre gripping drill bit, drilling rod portion 1 and clamping part 2 rod-shaped structure as an organic whole.
The drill rod part 1 comprises a drilling section 11, a grinding section 12 and a coating section 13.
A drilling section 11 is provided at the head of the drill rod portion 1, and is a conventional drill, such as a carbide blade, for drilling the plate material.
The grinding section 12 is arranged in the middle of the drill rod part 1, is a rough surface, can grind the inner wall of the hole in the high-speed rotation process, removes burrs generated on the inner wall of the hole in the drilling process, and forms a rough surface on the inner wall of the hole for attaching coating powder; the thickness of the rough surface of the grinding section 12 is not more than one tenth of the diameter of the drill rod part 1, so as to ensure the strength of the drill rod part, and the surface of the grinding section 12 is flush with the surface of the tail part of the drilling section 11.
The coating section 13 is arranged at the tail part of the drill rod part 1, namely between the grinding section 12 and the clamping part 2, the coating section 13 comprises a coating section body and a coating, the diameter of the coating section body is smaller than that of the grinding section 12, and the outer surface of the coating section body is wrapped with a circle of coating; the coating is made of zinc alloy materials and can also be made of other corrosion-resistant alloy materials, the coating can rub the inner wall of the hole in the high-speed rotating process, meanwhile, the coating is attached to the inner wall of the hole in a powder form, and the corrosion-resistant alloy materials cover the carbon steel intermediate layer exposed by the drilled hole, so that the corrosion resistance of the inner wall of the hole is improved; the thickness of the coating does not exceed one tenth of the diameter of the drill rod section, and the surface of the coating section 13 and the surface of the grinding section 12 are flush.
In this embodiment, the lengths of the drilling section 11, the grinding section 12 and the coating section 13 are preferably one third of the total length of the drill rod portion 1, and may be adjusted according to the properties of the plate material and the drilling requirement.
The length of the clamping part 2 is matched with that of the drill rod part 1, so that the drill bit is fixed on the rotating device and can stably rotate at a high speed without deviation.
In this embodiment, the manufacturing method of the multi-section drill bit comprises: firstly, distributing areas of a drill rod part and a clamping part on a rod-shaped raw material for manufacturing a drill bit, wherein the length of the clamping part can ensure the stable high-speed rotation of the drill bit; generating a drilling section 11 at the head of the drill rod part 1 according to a conventional drill bit processing mode; forming a rough surface on a smooth part of the drill rod part 1 close to the drilling section 11 by etching or polishing to form a polishing section 12, wherein the processing depth of the polishing section does not exceed one tenth of the diameter of the drill rod part 1; cutting a smooth part between the grinding section 12 and the clamping part 2 of the drill rod part 1, wherein the cutting depth is not more than one tenth of the diameter of the drill rod part 1 to form a coating section body, then covering a circle of coating on the outer surface of the coating section body in a spraying mode (including hot coating or cold coating), surfacing, adhering or mechanical nesting mode, and grinding the coating after drying until the surface of the coating section 13 is flush with the grinding section 12.
In this embodiment, the method for using the multi-section drill bit includes the following steps:
firstly, a clamping part 2 of the multi-section drill bit is fixed on a rotating device, so that the drill bit rotates;
secondly, the drilling section 11 of the drill bit is aligned with the plate to drill, and drilling is finished;
thirdly, the drill bit continues to push the plate, so that the grinding section 12 enters the hole, the drill bit rotates to enable the grinding section 12 to grind the inner wall of the hole, the drill bit repeatedly enters and exits relative to the hole so that the grinding section 12 grinds the inner wall of the hole for multiple times until the inner wall of the hole is free of burrs and a rough surface is formed, and grinding is finished;
fourthly, the drill bit continues to push the plate, so that the coating section 13 enters the hole, the drill bit rotates to enable the coating section 13 to rub the inner wall of the hole, the drill bit repeatedly enters and exits relative to the hole to enable the coating of the coating layer 13 to rub the inner wall of the hole for multiple times, meanwhile, the drill bit and the plate can relatively move along the radial direction of the hole to enhance the friction force, and the coating falls off in a powder form and is attached to the inner wall of the hole to finish coating;
and fifthly, closing the rotating device, stopping the drill bit from rotating, and withdrawing the drill bit from the hole.
In addition, in a test, a coating section of the multi-section drill bit is a zinc alloy coating, a stainless steel/carbon steel composite plate is drilled and polished according to a using method, zinc alloy powder is coated on the inner wall of a hole in a friction mode, after the stainless steel/carbon steel composite plate is exposed outdoors for one month, white zinc corrosion products appear on the inner wall of the hole, but yellow rust generated after the carbon steel is not corroded is generated, after the stainless steel is exposed outdoors for one year, only a little carbon steel on the inner wall of the hole is slightly corroded to cause yellow rust, and the stainless steel flows. When the conventional drill bit is adopted, the inner wall of the hole is not protected by zinc alloy coating powder, obvious yellow rust is generated on the inner wall of the hole after the conventional drill bit is exposed outdoors for one month, and obvious yellow rust is formed at the drilling position on the plate and flows after the conventional drill bit is exposed outdoors for one year. The zinc alloy coating powder on the coating section of the multi-section drill bit is attached to the inner wall of the hole and corroded and sacrificed, so that the carbon steel intermediate layer is prevented from being directly exposed to the outside and being quickly corroded, zinc corrosion products cannot obviously influence the appearance of the plate, the use performance of the plate cannot be changed, carbon steel corrosion products not only seriously influence the appearance of the plate, but also reduce the safety and stability of the plate structure due to the loss of carbon steel materials.
The multi-section drill bit can polish the inner wall of the hole to remove burrs and quickly coat corrosion-resistant coating powder in the process of drilling the composite plate, the zinc-coated plate, the color-coated plate, the tin-plated plate and other plates, effectively prevents the corrosion of the exposed carbon steel intermediate layer, and greatly improves the corrosion-resistant service performance of the plates. Similarly, the multi-section drill bit can also protect the exposed part of the carbon steel middle layer caused by other cutting modes.
The present invention is not limited to the above embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A multi-section drill bit comprises a drill bit part (1) and a clamping part (2) which are respectively arranged at the head and the tail of the drill bit, wherein the drill bit part (1) comprises a drilling section (11) for drilling a plate, and the clamping part (2) is used for mounting the drill bit on a rotating device capable of clamping the drill bit;
the method is characterized in that: the drill rod part (1) further comprises a grinding section (12) and a coating section (13), and the grinding section (12) and the coating section (13) are sequentially arranged between the drilling section (11) and the clamping part (2); the grinding section (12) is a rough surface and can grind the inner wall of the hole in the rotating process; the surface of the coating section (13) is provided with a coating which can rub against the inner wall of the hole in the rotating process and be attached to the inner wall of the hole in a powder form; the drilling section (11), the polishing section (12), the coating section (13) and the clamping part (2) of the drill rod part (1) are of an integrated structure.
2. The multi-section drill bit of claim 1, wherein: the length of the drilling section (11) is not more than one third of the total length of the drill rod part (1).
3. The multi-section drill bit of claim 1, wherein: the length of the grinding section (12) is not more than one third of the total length of the drill rod part (1), the thickness of the rough surface of the grinding section (12) is not more than one tenth of the diameter of the drill rod part (1), and the surface of the grinding section (12) is flush with the surface of the tail part of the drilling section (11).
4. The multi-section drill bit of claim 1, wherein: the coating section (13) comprises a coating section body and a coating, the diameter of the coating section body is smaller than that of the polishing section (12), the outer surface of the coating section body is wrapped with a circle of coating, the thickness of the coating does not exceed one tenth of the diameter of the drill rod part, and the surface of the coating section (13) is flush with the surface of the polishing section (12).
5. The multi-section drill bit of claim 4, wherein: the coating is composed of a zinc alloy material.
6. The multi-section drill bit of claim 4, wherein: the length of the coating section (13) is not more than one third of the total length of the drill rod part (1).
7. The multi-section drill bit of any one of claims 1 through 6, wherein: the length of the clamping part (2) is matched with that of the drill rod part (1), so that the drill can stably rotate.
8. A method of making a multi-section drill bit according to claim 1, comprising: forming a rough surface on a smooth part of the drill rod part (1) close to the drilling section (11) by etching or grinding, wherein the processing depth does not exceed one tenth of the diameter of the drill rod part (1), and the processing length does not exceed one third of the total length of the drill rod part (1), so as to form a grinding section (12); cutting a smooth part between the grinding section (12) and the clamping part (2), wherein the cutting depth is not more than one tenth of the diameter of the drill rod part (1), the cutting length is not more than one third of the total length of the drill rod part (1), so as to form a coating section body, then coating is covered on the outer surface of the coating section body in a spraying, surfacing, adhering or mechanical nesting mode, and the coating is ground after being dried until the surface of the coating section (13) is flush with the grinding section (12).
9. A method of using a multi-section drill bit of claim 1, comprising:
Firstly, a clamping part (2) of the multi-section drill bit is fixed on a rotating device, so that the drill bit rotates;
secondly, a drilling section (11) of the drill bit is aligned to the plate for drilling, and drilling is finished;
thirdly, the drill bit continues to push the plate, so that the grinding section (12) enters the hole, the drill bit rotates to enable the grinding section (12) to grind the inner wall of the hole, the drill bit repeatedly enters and exits relative to the hole so that the grinding section (12) grinds the inner wall of the hole for multiple times until the inner wall of the hole is free of burrs and a rough surface is formed, and grinding is finished;
fourthly, the drill bit continues to push the plate, so that the coating section (13) enters the hole, the drill bit rotates to enable the coating section (13) to rub the inner wall of the hole, the drill bit repeatedly enters and exits relative to the hole to enable the coating of the coating layer (13) to rub the inner wall of the hole for multiple times, and the coating falls off in a powder form and is attached to the inner wall of the hole to finish coating;
and fifthly, closing the rotating device, stopping the drill bit from rotating, and withdrawing the drill bit from the hole.
10. Use according to claim 9, characterized in that: when the coating section (13) rubs against the inner wall of the hole, the drill bit and the plate can relatively move along the radial direction of the hole to enhance the friction force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910441001.2A CN111975055B (en) | 2019-05-24 | 2019-05-24 | Multi-section drill bit and manufacturing method and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910441001.2A CN111975055B (en) | 2019-05-24 | 2019-05-24 | Multi-section drill bit and manufacturing method and using method thereof |
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| Publication Number | Publication Date |
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| CN111975055A true CN111975055A (en) | 2020-11-24 |
| CN111975055B CN111975055B (en) | 2023-06-13 |
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| CN201910441001.2A Active CN111975055B (en) | 2019-05-24 | 2019-05-24 | Multi-section drill bit and manufacturing method and using method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1394984A (en) * | 2002-05-31 | 2003-02-05 | 吉林大学 | Steel surface friction coated alloy coating layer |
| CN102489440A (en) * | 2011-11-30 | 2012-06-13 | 南京金三力橡塑有限公司 | Method for coating graphite on surface of rubber product by using friction method |
| CN204159937U (en) * | 2014-09-02 | 2015-02-18 | 赵斌 | A kind of drill bit with cleaning function |
| CN106736574A (en) * | 2016-12-02 | 2017-05-31 | 辽宁科技学院 | A kind of precision optical machinery manufacture brill mill dual-purpose apparatus |
| CN108643847A (en) * | 2018-06-28 | 2018-10-12 | 上海图博可特石油管道涂层有限公司 | The oil exploitation drilling rod and manufacturing method that wear-resistant strip is welded with inner coating and heap |
-
2019
- 2019-05-24 CN CN201910441001.2A patent/CN111975055B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1394984A (en) * | 2002-05-31 | 2003-02-05 | 吉林大学 | Steel surface friction coated alloy coating layer |
| CN102489440A (en) * | 2011-11-30 | 2012-06-13 | 南京金三力橡塑有限公司 | Method for coating graphite on surface of rubber product by using friction method |
| CN204159937U (en) * | 2014-09-02 | 2015-02-18 | 赵斌 | A kind of drill bit with cleaning function |
| CN106736574A (en) * | 2016-12-02 | 2017-05-31 | 辽宁科技学院 | A kind of precision optical machinery manufacture brill mill dual-purpose apparatus |
| CN108643847A (en) * | 2018-06-28 | 2018-10-12 | 上海图博可特石油管道涂层有限公司 | The oil exploitation drilling rod and manufacturing method that wear-resistant strip is welded with inner coating and heap |
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| Publication number | Publication date |
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| CN111975055B (en) | 2023-06-13 |
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