CN101254554A - Deep borehole process reamer bit - Google Patents
Deep borehole process reamer bit Download PDFInfo
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- CN101254554A CN101254554A CNA2007101656520A CN200710165652A CN101254554A CN 101254554 A CN101254554 A CN 101254554A CN A2007101656520 A CNA2007101656520 A CN A2007101656520A CN 200710165652 A CN200710165652 A CN 200710165652A CN 101254554 A CN101254554 A CN 101254554A
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- drill bit
- clamped
- deep borehole
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Abstract
The invention relates to the field of deep hole mechanical processing technology, particularly to a broaching bit for deep hole processing. Two clamped blade installation grooves are processed in front of a bit, and clamped blades are respectively arranged in the clamped blade installation grooves. A scrap inlet groove is formed on the end face between the two clamped blades and communicates with the inner hole of the bit. The inner hole of the bit communicates with the inner hole of a drill rod, four guide alloy slider assembly grooves are processed on the outer circle of the bit, and a rectangular screw thread consistent with prior drill rod is arranged in the rear section of the bit, so that the broaching bit is tightly connected with the drill rod through a transition sleeve. After assembling the blades, the tips and the outer cycle of the alloy guide sliders are on the same cylinder, and the blades firmly assembled are tightly combined with the main body of the cutting tool. A positioning block assembly groove and a force application plane of a wrench for tightening the bit are arranged on the rear section of the bit. The rear section of the bit is tightly connected with the drill rod through the transition sleeve. In operation, the broaching bit has stable cutting, uniform scraps and ensured quality of hole processing surface. In order to improve the production efficiency, the cutting parameter is set to keep the rotation speed not less than 300 rpm and the feed amount not less than 10 mm per minute.
Description
Technical field
The present invention relates to deep hole Machining Technology field, particularly a kind of deep borehole process reamer bit.
Background technology
Deep hole machining is a higher process technology of difficulty in mechanical processing industry, because hole depth is tens times even hundred times of the diameter in hole, the abrasion condition of cutter and chip removal situation are difficult for observing in working angles, require also higher to the drilling rod rigidity, and when the situation of the drill bit introducing metapore heart and drilling rod axle center decentraction takes place, increase along with drilling depth, drilling rod off-axis distance continues to increase, be difficult to find this situation outside again, the result will cause the big or drill bit damage in hole, even drill pipe buckling can't use, even can produce waste product.To the workpiece of high rigidity material, deep hole machining has increased inconceivable difficulty especially.In order to solve the difficult problem of deep hole machining, multiple deep hole processing equipment has appearred in the market, be applied to different workplaces, as drill gun, NC deep hole drilling machine etc.But it also is not very general that the deep hole machining technology of high hard material is used, and the drill bit that is specifically designed to reaming processing does not also have ripe logical all type products to occur.
Summary of the invention
The object of the present invention is to provide a kind of suitable broad, expand the deep hole drilling machine function, can realize the deep borehole process reamer bit of macropore (in the diameter phi 200mm) (reaming) processing of high hard material.
The objective of the invention is to realize by following technical proposals:
Deep borehole process reamer bit of the present invention, it is characterized in that: be provided with two clamped cutting bit sword mounting grooves before the drill bit, be separately installed with the clamped cutting bit sword in this clamped cutting bit sword mounting groove, end face is provided with into bits groove between the two clamped cutting bit swords, this advances to consider to be worth doing groove and communicates with the drill bit endoporus, and the drill bit endoporus communicates with drill pipe bore, and the drill bit cylindrical is provided with the fitting recess of four guiding alloy slide blocks, be provided with the rectangular thread consistent in the drill bit rear orifice, reaming bit tightly be connected with drilling rod by spacer shell with existing drilling rod.
After the described blade assembling, point of a knife and alloy guide pad cylindrical are on the same face of cylinder, and blade assembling back is stable, combines closely with cutter hub.
Described drill bit rear portion is provided with the locating piece fitting recess.
Described drill bit rear portion is provided with tightens the spanner application of force cooperation plane that drill bit is used.
Described clamped cutting bit sword is to adopt up-to-date coating technology (TiALN), and the outstanding alloy blade of Japanese black pigment used by women in ancient times to paint their eyebrows of high wearability and red hardness is arranged.
Described drill bit rear portion tightly connects with spacer shell mutually by rectangular thread, and spacer shell tightly is connected with drilling rod.
According to deep borehole process reamer bit of the present invention, reaming bit chip removal mode is designed to chip removal in the spray-sucking type, both adopted hydraulic oil to rush in cutting zone from the drilling rod external high pressure of sealing, iron filings are discharged from the drilling rod afterbody of hollow, oil after filtering circulates again and enters cutting region.This drill bit is made comparatively complicated, require to guarantee omnidistancely to be the chip breaking cutting, otherwise the smear metal meeting gets lodged in the chip-removal hole of drill bit and drilling rod and causes the drill bit damage.Drill bit design is the blade clip type.Wherein drill body is a design agents, adopts modified the manufacturing of 45# steel.Be connected the preparation adapter sleeve between drilling rod and the drill bit.The clip type blade uses finished product, but the clip type blade of selling on the market is of a great variety, needs to be optimized selection by cutting experiment repeatedly.Through repeatedly experiment, determine that finally the outstanding alloy blade of Japanese black pigment used by women in ancient times to paint their eyebrows is as drill bit clamped cutting bit sword.That this blade adopts is up-to-date coating technology (TiALN), and high wearability and red hardness are arranged, and is lower than under 1000 ℃ of situations in temperature, can keep good working order.Therefore be well suited for the deep hole machining of high hard material.
Two-chip computer folder blade is adopted in drill body design, front end, and end face processes into that the bits groove communicates with the drill bit endoporus between the two-edged, and the hydraulic oil that the drill bit outside is entered dashes is with smear metal can enter drill pipe bore smoothly.Process the fitting recess of four guiding alloy slide blocks on the cylindrical.The rear portion endoporus processes the rectangular thread consistent with having drilling rod now, by spacer shell reaming bit tightly is connected with drilling rod.In this drill bit is made, the cutter groove processing of assembling blade is a difficult point, required precision is very high, because after needing the blade assembling of assurance standard, point of a knife also alloy guide pad cylindrical on the same face of cylinder, and blade assembling back is stable, can combine closely with cutter hub, and reaming adds and just has stable cutting effect man-hour like this.
Be effective according to deep borehole process reamer bit of the present invention and be:
This reaming bit design is mainly used in deep hole drilling machine reaming processing, to extend the deep hole drilling machine function, changes the present situation of simple boring, and is applicable to the reaming processing of hard partially material.The new system reaming bit requires in use, and cutting is stable, and chip breaking is even, guarantees the hole machined surface quality.For enhancing productivity, require cutting parameter to remain on Revolution Per Minute and be not less than 300 commentaries on classics, amount of feeding per minute is not less than 10mm.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The specific embodiment
The embodiment given below in conjunction with accompanying drawing further specifies the specific embodiment of the present invention.
As shown in Figure 1 and Figure 2, deep borehole process reamer bit of the present invention, it is characterized in that: be provided with two clamped cutting bit sword mounting grooves 3 before the drill bit, be separately installed with the clamped cutting bit sword in this clamped cutting bit sword mounting groove 3, end face is provided with into bits groove 2 between the two clamped cutting bit swords, this advances to consider to be worth doing groove 2 and communicates with the drill bit endoporus, the drill bit endoporus communicates with drill pipe bore, the drill bit cylindrical is provided with the fitting recess 1 of four guiding alloy slide blocks, be provided with the rectangular thread consistent 4 in the drill bit rear portion, reaming bit tightly be connected with drilling rod by spacer shell with existing drilling rod.Need the assurance standard,
After the described blade assembling, point of a knife and alloy guide pad cylindrical are on the same face of cylinder, and blade assembling back is stable, combines closely with cutter hub.
Described drill bit rear portion is provided with the locating piece fitting recess.
Described drill bit rear portion is provided with tightens the spanner application of force cooperation plane 5 that drill bit is used.
Described clamped cutting bit sword is to adopt up-to-date coating technology (TiALN), and the outstanding alloy blade of Japanese black pigment used by women in ancient times to paint their eyebrows of high wearability and red hardness is arranged.
Described drill bit rear portion tightly connects with spacer shell mutually by rectangular thread, and spacer shell tightly is connected with drilling rod.
Case study on implementation:
9 working roll processing on certain steel rolling production-line.This roller external diameter is φ 275mm, long 4300mm, and axial inner through-hole diameter φ 120mm, its material is that 60CrMnMo belongs to high-carbon alloy steel (bearing steel), and it is HB225-285 that technology is indicated modified preceding hardness, and practical work piece hardness is HB350-375.Because of the particularity of material, when machined into, tool wear is more serious, and the iron filings that car goes out are not only sticking but also be difficult for chip breaking firmly.So, brought very big difficulty for the processing of postorder medium-length hole.Original YG8, the YT5 of original adoption, the welding deep hole drill of YT15 material, after use Dezhou depth drill again, but processing effect is all undesirable.When drill diameter was not more than the through hole of 50mm, because of diameter is little, the cutting moment of torque of generation did not exceed the drill bit ability to bear, but normal process also.But add man-hour when carry out reaming on basis, φ 50mm hole, problem has just occurred, and hard because of material, cutting force is big, and the moment of torsion of generation has exceeded the drill bit ability to bear, and these drill bits all bore less than 100mm and deeply just damaged.
For separating fast this difficult problem, this reaming bit of special development and Design also comes into operation.In use, adopt machined parameters to be: n=390 rev/min, F=12-15mm/ minute.Through one of examination processing, effect is very desirable.Through statistics, expand to φ 60mm hole 6 hours times spent; Diffuse into φ 75mm hole, 5 hours times spent; Expand to φ 90mm hole 5 hours times spent; Expand to φ 105mm hole, 7 hours times spent, expand to φ 120mm hole 8 hours times spent.A roll shaft is successfully expanded to the φ 120mm diameter that requires to through hole, amount to about 31 hours times spent.So far, the processing of novel bearing steel matter is succeeded in developing with the deep hole reaming bit.
Claims (6)
1, a kind of deep borehole process reamer bit, it is characterized in that: be provided with two clamped cutting bit sword mounting grooves before the drill bit, be separately installed with the clamped cutting bit sword in this clamped cutting bit sword mounting groove, end face is provided with into bits groove between the two clamped cutting bit swords, this advances to consider to be worth doing groove and communicates with the drill bit endoporus, and the drill bit endoporus communicates with drill pipe bore, and the drill bit cylindrical is provided with the fitting recess of four guiding alloy slide blocks, be provided with the rectangular thread consistent in the drill bit rear portion, reaming bit tightly be connected with drilling rod by spacer shell with existing drilling rod.
2, deep borehole process reamer bit according to claim 1, it is characterized in that the assembling of described blade after, point of a knife and alloy guide pad cylindrical are on the same face of cylinder, and blade assembling back stablizes, and combine closely with cutter hub.
3, deep borehole process reamer bit according to claim 1 is characterized in that described drill bit rear portion is provided with the locating piece fitting recess.
4, deep borehole process reamer bit according to claim 1 is characterized in that described drill bit rear portion is provided with to tighten the spanner application of force that drill bit uses and cooperate the plane.
5, deep borehole process reamer bit according to claim 1 is characterized in that described clamped cutting bit sword is to adopt up-to-date coating technology TiALN, and the outstanding alloy blade of Japanese black pigment used by women in ancient times to paint their eyebrows of high wearability and red hardness is arranged.
6, deep borehole process reamer bit according to claim 4 is characterized in that described drill bit rear portion tightly is connected with spacer shell by rectangular thread, and spacer shell tightly is connected with drilling rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101656520A CN101254554A (en) | 2007-10-26 | 2007-10-26 | Deep borehole process reamer bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101656520A CN101254554A (en) | 2007-10-26 | 2007-10-26 | Deep borehole process reamer bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101254554A true CN101254554A (en) | 2008-09-03 |
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ID=39889848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101656520A Pending CN101254554A (en) | 2007-10-26 | 2007-10-26 | Deep borehole process reamer bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101254554A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102513550A (en) * | 2011-12-27 | 2012-06-27 | 中国航空工业第六○七研究所 | Processing method of choke groove of microwave device as well as processing cutter |
| CN105195795A (en) * | 2015-10-19 | 2015-12-30 | 无锡市永亿精密铸造有限公司 | Double-side drill bit |
| CN106624592A (en) * | 2017-03-10 | 2017-05-10 | 广汽本田汽车有限公司 | Grinding device of welding gun electrode rod |
-
2007
- 2007-10-26 CN CNA2007101656520A patent/CN101254554A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102513550A (en) * | 2011-12-27 | 2012-06-27 | 中国航空工业第六○七研究所 | Processing method of choke groove of microwave device as well as processing cutter |
| CN105195795A (en) * | 2015-10-19 | 2015-12-30 | 无锡市永亿精密铸造有限公司 | Double-side drill bit |
| CN106624592A (en) * | 2017-03-10 | 2017-05-10 | 广汽本田汽车有限公司 | Grinding device of welding gun electrode rod |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080903 |