CN203124799U - High-speed deep hole drill and drilling processes thereof - Google Patents
High-speed deep hole drill and drilling processes thereof Download PDFInfo
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- CN203124799U CN203124799U CN 201220604360 CN201220604360U CN203124799U CN 203124799 U CN203124799 U CN 203124799U CN 201220604360 CN201220604360 CN 201220604360 CN 201220604360 U CN201220604360 U CN 201220604360U CN 203124799 U CN203124799 U CN 203124799U
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Abstract
Provided is a high-speed deep hole drill. The drill is a hard alloy inner-cooling drill and comprises a drill handle and a drill rod, wherein the drill handle comprises a tapered clamping portion, an annular connecting portion and a cylindrical neck portion which are connected with one another successively. The tapered clamping portion is provided with an inner clamping hole used for being connected with a driving device which drives the drill, and the cylindrical neck portion is connected with the drill rod. The length of the drill rod is a, the diameter of the drill rod is b, and the ratio of a to b is greater than or equal to 30.
Description
Technical field
The present invention relates to a kind of drill bit and use technology, relate in particular to a kind of high speed deep hole drill, and the technology of using this high speed deep hole drill to hole.
Background technology
In field of engineering technology, under a lot of situations, need hole at equipment, facility or its parts.The modal modus operandi of bore operation is to use drill bit, is about to the position that drill bit need be holed, and uses drive unit to drive the drill bit rotary drilling.Drill bit has one usually for the shank and the elongated drilling rod portion that connect drive unit, and when creeping into, drilling rod portion screws in the formation hole, position that needs boring.When the needs drilling deep hole, as draw ratio greater than 20 hole, drilling rod portion will be more elongated, be very easy to make drilling rod to fracture when drill bit creeps into driving, especially when the equipment, facility or its parts that need to hole were harder metal material, the resistance that creeps into was very big, the easier brill accident that collapses, the production efficiency that has a strong impact on, the harm personal safety as well as the property safety causes very big waste.
In the prior art, traditional handicraft drills deep hole and adopts use stub drill boring earlier usually, the mode that long drill bit, long drill bit are pecked brill in using successively then.Its technology is loaded down with trivial details, cutting speed slow, the problem of brill partially takes place easily, can't satisfy demand of practical production.
On the basis of traditional handicraft, people propose to use high-strength alloy to make the deep hole long drill bit, make it can bear higher drilling speed and moment of torsion, thereby save the operation that long drill bit is pecked brill in the use.Improved technology comprises uses stub drill to bore bullport, directly uses the cutting of long drill bit high speed feed then, and the back high speed withdrawing that finishes is cut in boring.Above-mentioned improvement processes efficient is higher, technology is simple relatively, but because the rotating speed of long drill bit in the priming hole is just higher, the hole wall of the bullport that itself and common stub drill get out inevitably can take place to wipe and bump, the cutter sword is worn and torn fast, have a strong impact on cutter life, simultaneously in the process of high speed withdrawing, elongated drilling rod discontinuity, the phenomenon of as easy as rolling off a log generation breaking of rod head.
Summary of the invention
For addressing the above problem, the present invention proposes a kind of high speed deep hole drill and bore process thereof, has namely guaranteed the cutting feed speed, can effectively prolong cutter life again, and its concrete scheme is as follows:
A kind of high speed deep hole drill, described drill bit is cold drill bit in the carbide alloy, comprise drillstock and drilling rod, described drillstock comprises taper clamping part, annular connecting portion and the cylindrical neck that links to each other successively, described taper clamping part has the clamping endoporus, be used for connecting the drive unit that drives described drill bit, described cylindrical neck connects described drilling rod; The length of described drilling rod is a, and the diameter of described drilling rod is b, and wherein the ratio of a/b is more than or equal to 30.
The length of preferred described drilling rod is 290mm, and the diameter of described drilling rod is 8.5mm.
The bore process of above-mentioned high speed deep hole drill may further comprise the steps:
1. use common bit drills making guide hole, the diameter of described common drill bit is less than the diameter of described high speed deep hole drill, and the length of described bullport is more than or equal to 3 times of described high speed deep hole drill diameter;
2. use common reamer that bullport is carried out reaming, the diameter of described common reamer is less than or equal to the diameter of described high speed deep hole drill;
3. use reamer that bullport is twisted system, make described bullport reach 7 grades of precision, the inside surface roughness of described bullport reaches Ra0.8;
4. use low drilling speed that described high speed deep hole drill is entered in the bullport, at the bottom of hole, described high speed deep hole drill contact guidance hole;
5. drive described high speed deep hole drill high speed feed cutting;
6. after cutting is finished, the position of high drilling speed withdrawing to described high speed deep hole drill apart from foot of hole twice bore diameter;
7. slow-speed of revolution withdrawing is to the aperture, and described high speed deep hole drill breaks away from the hole;
8. the boring cutting is finished.
The invention has the advantages that: drill bit intensity height, the draw ratio of drilling rod is big, can drill long deep hole;
The cutting feed speed of driller's technology has lifting significantly than existing technology, can effectively improve cutter life simultaneously; Though use cutter, operation to increase, because bullport quality height, good stability can adopt higher feed speed during the deep hole drill cutting, so process time is shorter than existing technology.
Description of drawings
Accompanying drawing 1 is the structural representation of high speed deep hole drill of the present invention.
Reference numeral is as follows:
The 1-drilling rod; The 2-cylindrical neck; 3-annular connecting portion; 4-taper clamping part; 5-clamping endoporus.
The specific embodiment
Referring to accompanying drawing 1, it has described a specific embodiment according to high speed deep hole drill of the present invention, and it is used for drilling the deep hole that surpasses 200mm above length, and the rotating speed in drilling process can reach more than 4000 rev/mins.Described drill bit is cold drill bit in the carbide alloy, drill bit intensity height, and have good wearability.Comprise drillstock and drilling rod on the drill bit structure, described drillstock comprises the taper clamping part that links to each other successively, annular connecting portion and cylindrical neck, the taper clamping part has the clamping endoporus, the clamping endoporus be used for to connect the drive unit as motor etc., the annular connecting portion connects taper clamping part and cylindrical neck, its diameter is greater than the maximum gauge of taper clamping part, and can have annular groove, so that the placement of drill bit, store and transportation, the cylindrical neck jointed rod, the taper clamping part, the annular connecting portion, cylindrical neck, drilling rod arranges with one heart, and the diameter of taper clamping part should be much larger than the diameter of drilling rod, stable for what guarantee to creep into, the diameter of taper clamping part should be more than 3 times of drill pipe diameter; The length of described drilling rod is a, the diameter of described drilling rod (being the external diameter of drilling rod spiral) is b, wherein the ratio of run of steel a and drill pipe diameter b is more than or equal to 30, be that run of steel is more than 30 times of drill pipe diameter, reach 35 times even 40 times, the length of preferred described drilling rod is 290mm, and the diameter of described drilling rod is 8.5mm.
The bore process of above-mentioned high speed deep hole drill may further comprise the steps:
1. select the common drill bit of suitable diameter according to the diameter of need boring, use common bit drills making guide hole at bore position, owing to also need next step reaming and fraising, therefore the diameter of described common drill bit should be less than the diameter of described high speed deep hole drill, avoid too big through the diameter of the bullport of reaming and fraising, simultaneously, the length of bullport can not be oversize or too short, oversize words had both been wasted the process time of this operation, be unfavorable for being lowered to the high speed deep hole drill again, too short words do not have guiding function again, and the length of bullport is more than or equal to 3 times of described high speed deep hole drill diameter, less than 5 times of diameter;
2. use common reamer that bullport is carried out reaming, the diameter of described common reamer is less than or equal to the diameter of described high speed deep hole drill, and the diameter of the bullport after the reaming and high speed deep hole drill is basic identical;
3. use reamer that bullport is twisted system, make described bullport reach 7 grades of precision, the inside surface roughness of described bullport reaches Ra0.8;
4. use low drilling speed, as be lower than 700 rev/mins rotating speed make as described in the high speed deep hole drill enter in the bullport, at the bottom of hole, described high speed deep hole drill contact guidance hole, make bullport can fully play the purpose of guiding high speed deep hole drill;
5. drive described high speed deep hole drill high speed feed cutting, drill speed reaches more than 3000 rev/mins, and according to the difference of boring material and the needs of technology, rotating speed can reach more than 4000 rev/mins;
6. but after drilling depth reached technological requirement, cutting was finished, use the position of high drilling speed withdrawing to described high speed deep hole drill apart from foot of hole twice bore diameter more than 3000 rev/mins, high speed deep hole drill and foot of hole are broken away from fast;
7. use slow-speed of revolution withdrawing below 700 rev/mins to the aperture, the high-speed friction of drill bit cutting edge and the wall of a borehole makes the high speed deep hole drill break away from the hole to the infringement that drill bit causes when avoiding the high speed withdrawing;
8. the boring cutting is finished.
The above; only be the preferable specific embodiment of patent of the present invention; but the protection domain of patent of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that patent of the present invention discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of patent of the present invention.
Claims (2)
1. high speed deep hole drill, described drill bit are cold drill bit in the carbide alloy, it is characterized in that: comprise drillstock and drilling rod,
Described drillstock comprises taper clamping part, annular connecting portion and the cylindrical neck that links to each other successively, and described taper clamping part has the clamping endoporus, is used for connecting the drive unit that drives described drill bit, and described cylindrical neck connects described drilling rod;
The length of described drilling rod is a, and the diameter of described drilling rod is b, and wherein the ratio of a/b is more than or equal to 30.
2. high speed deep hole drill as claimed in claim 1, it is characterized in that: the length of described drilling rod is 290mm, the diameter of described drilling rod is 8.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220604360 CN203124799U (en) | 2012-11-16 | 2012-11-16 | High-speed deep hole drill and drilling processes thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220604360 CN203124799U (en) | 2012-11-16 | 2012-11-16 | High-speed deep hole drill and drilling processes thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203124799U true CN203124799U (en) | 2013-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220604360 Expired - Lifetime CN203124799U (en) | 2012-11-16 | 2012-11-16 | High-speed deep hole drill and drilling processes thereof |
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| Country | Link |
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| CN (1) | CN203124799U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107855577A (en) * | 2017-10-16 | 2018-03-30 | 杭州联德精密机械股份有限公司 | A kind of oval aperture knife tool and the method that oval hole machined is carried out using the cutter |
| CN109550990A (en) * | 2018-09-10 | 2019-04-02 | 河源龙记金属制品有限公司 | The processing method in mould bases template fortune water hole |
| CN111168324A (en) * | 2020-03-16 | 2020-05-19 | 沈阳飞机工业（集团）有限公司 | Drilling method for AF1410 steel part after quenching |
| CN111715918A (en) * | 2020-06-11 | 2020-09-29 | 江苏迈信林航空科技股份有限公司 | Machining method for small-diameter deep hole of aviation shell |
-
2012
- 2012-11-16 CN CN 201220604360 patent/CN203124799U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107855577A (en) * | 2017-10-16 | 2018-03-30 | 杭州联德精密机械股份有限公司 | A kind of oval aperture knife tool and the method that oval hole machined is carried out using the cutter |
| CN109550990A (en) * | 2018-09-10 | 2019-04-02 | 河源龙记金属制品有限公司 | The processing method in mould bases template fortune water hole |
| CN111168324A (en) * | 2020-03-16 | 2020-05-19 | 沈阳飞机工业（集团）有限公司 | Drilling method for AF1410 steel part after quenching |
| CN111168324B (en) * | 2020-03-16 | 2021-07-09 | 沈阳飞机工业（集团）有限公司 | Drilling method for AF1410 steel part after quenching |
| CN111715918A (en) * | 2020-06-11 | 2020-09-29 | 江苏迈信林航空科技股份有限公司 | Machining method for small-diameter deep hole of aviation shell |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100013, Beijing, Chaoyang District, Hepingli Youth ditch East Road, building 5, one floor Patentee after: Beijing Tianma Zhikong Technology Co.,Ltd. Address before: 100013, Beijing, Chaoyang District, Hepingli Youth ditch East Road, building 5, one floor Patentee before: BEIJING TIANDI-MARCO ELECTRO-HYDRAULIC CONTROL SYSTEM Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130814 |
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| CX01 | Expiry of patent term |