CN204135419U - A kind of right boring composite drill - Google Patents

A kind of right boring composite drill Download PDF

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Publication number
CN204135419U
CN204135419U CN201420535198.9U CN201420535198U CN204135419U CN 204135419 U CN204135419 U CN 204135419U CN 201420535198 U CN201420535198 U CN 201420535198U CN 204135419 U CN204135419 U CN 204135419U
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CN
China
Prior art keywords
cutting
blade
slot
matrix
boring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201420535198.9U
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Chinese (zh)
Inventor
陈杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NINGBO RONGKE MAITE NC TOOLS Co Ltd
Original Assignee
NINGBO RONGKE MAITE NC TOOLS Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by NINGBO RONGKE MAITE NC TOOLS Co Ltd filed Critical NINGBO RONGKE MAITE NC TOOLS Co Ltd
Priority to CN201420535198.9U priority Critical patent/CN204135419U/en
Application granted granted Critical
Publication of CN204135419U publication Critical patent/CN204135419U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a kind of right boring composite drill, belongs to the cutting-tool engineering field for drilling machine.It solve the design of existing flute of drill unreasonable, the problem of hole surface crudy difference.This right boring composite drill, comprises matrix and blade, and blade comprises inner blade and outer blade, matrix offers the first cutting slot and the second cutting slot; First cutting slot comprises the first installation portion, and the first installation portion comprises the first cutting face and the first filings-breaking surface, the first cutting face is offered and is equipped with interior stopper slot, and inner blade is arranged in interior stopper slot; Second cutting slot comprises the second installation portion and straight trough portion, and outer blade is arranged in the stopper slot of the second cutting slot, and the second installation portion comprises the second cutting face and the second filings-breaking surface, the second cutting face is offered and is equipped with outer stopper slot, and outer blade is arranged in outer stopper slot; Portion offers mounting groove to straight trough, and mounting groove is provided with knife rest, and knife rest is provided with boring cutter.The utility model has cutting easy fracture, the measured advantage of hole surface matter.

Description

A kind of right boring composite drill
Technical field
The utility model belongs to the cutting-tool engineering field for drilling machine, relates to a kind of right boring composite drill.
Background technology
On workpiece, the hole of machining high-precision needs first by drill bit machined bottom usually, pass through the precision of reamer or the further machining hole of boring cutter again, making the machining accuracy in the hole on workpiece reach engine request, for improving working (machining) efficiency further, having occurred various compound tool.
Chinese patent CN103121121A discloses a kind of indexable brill boring chamfer compound cutting tool, comprise knife bar, inner edge blade and outside blade, knife bar is positioned at shaft shoulder rear portion and is provided with the handle of a knife be connected with tool rest, front portion is provided with inner edge chip area and outside chip area, it is anterior that inner edge blade is arranged on inner edge chip area, it is anterior that outside blade is arranged on outside chip area, the middle and upper part that knife bar is positioned at inner edge chip area place is provided with adjustable cutter holder vertically, right boring blade is radial adjustable to be arranged on cutter holder, and the end face of right boring blade is lower than the groove bottom of inner edge chip area, the shaft shoulder front end face of knife bar is provided with chamfering blade, cooling water channel in knife bar respectively with right boring blade water channel, outside blade water channel and inner edge blade water channel communicate, and right boring blade water channel, the front end of outside blade water channel and inner edge blade water channel is separately positioned on right boring blade, outside blade and inner edge blade place.
Above-mentioned brill boring chamfer compound cutting tool is while machining hole, and chip area design during cutting workpiece is reasonable not, chip can not be had to rupture in time, easily affect the inner surface quality in hole thus affect machining accuracy.
Summary of the invention
The purpose of this utility model there are the problems referred to above for existing technology, proposes a kind of cutting easy fracture, the measured right boring composite drill of hole surface matter.
The purpose of this utility model realizes by following technical proposal: a kind of right boring composite drill, comprise matrix, be arranged on several blades of matrix end, it is characterized in that, described blade comprises the inner blade of close axis and protrudes the outer blade of outer peripheral face, described matrix offers the first cutting slot and the second cutting slot;
Described first cutting slot comprises the first installation portion of being arranged on matrix end and spiral intersects to the first installation portion and the first spire extended spirally vertically on matrix, the cross section of described first installation portion comprises the first cutting face and the first filings-breaking surface in obtuse angle, described first cutting face is offered and is equipped with interior stopper slot, described inner blade is arranged in interior stopper slot, and described first spire extends to the first filings-breaking surface;
Described second cutting slot comprises the second installation portion being arranged on end, spiral intersects to the second installation portion and the second spire extended spirally vertically on matrix and be parallel to the axis of matrix and the straight trough portion of intersecting to the second spire, described outer blade is arranged in the stopper slot of the second cutting slot, the cross section of described second installation portion comprises the second cutting face and the second filings-breaking surface in obtuse angle, described second cutting face is offered and is equipped with outer stopper slot, described outer blade is arranged in outer stopper slot, the maximum revolution external diameter of described outer blade is greater than the external diameter of matrix, described second spire extends to the second filings-breaking surface, described second cutting face and the first cutting face are on same straight line,
Described straight trough portion offers mounting groove, described mounting groove is provided with knife rest, described knife rest is provided with boring cutter.
In above-mentioned a kind of right boring composite drill, described mounting groove to be opened in straight trough portion and to be positioned at the second cutting face and the tangent side of the second spire, comprise the end face perpendicular to matrix axis and the bottom surface being parallel to matrix axis, described knife rest comprises the mounting blocks be connected on bottom surface, be connected in company's tool rest of mounting blocks one end and be threaded in the push rod screw of the mounting blocks other end, described boring cutter is arranged on and connects on tool rest, and described push rod screw can be pushed against on the end face of mounting groove.
In above-mentioned a kind of right boring composite drill, described even tool rest offers the locating slot in equilateral triangle shape, described boring cutter is equilateral triangle body shape, and described boring cutter is arranged in locating slot.
In above-mentioned a kind of right boring composite drill, the maximum rotating diameter of described boring cutter is greater than the maximum rotating diameter of outer blade.
In above-mentioned a kind of right boring composite drill, described matrix comprises the portion of leaning, is separately positioned on the staight shank portion and columniform knife bar portion that lean two ends, portion, described first cutting slot and the second cutting slot are opened in knife bar portion, the described diameter leaning portion is greater than the diameter in staight shank portion, and described staight shank portion offers locating surface along axis.
Compared with prior art, the utility model has following advantage:
1, right boring composite drill can carry out bore hole while boring, and working (machining) efficiency is high, and boring cutter is arranged on same matrix, and always, axiality is high in angle of revolution, and crudy is good.
2, cutting slot extends to spiral helicine curved surface by plane, and the chip of workpiece is through plane impact and along curved surface distortion, easily rupture, and chip is easily discharged.
3, arranging knife rest can the position of regulating boring cutter, and the push rod screw on boring cutter is resisted against on end face, can retreat and the vibration of less boring cutter by the company's of preventing tool rest.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structure for amplifying schematic diagram at A place in the utility model.
Fig. 3 is front view of the present utility model.
In figure, 1, matrix; 11, staight shank portion; 12, portion is leaned; 13, knife bar portion; 14, the second cutting slot; 141, straight trough portion; 142, the second spire; 143, the second installation portion; 1431, the second filings-breaking surface; 1432, the second cutting face; 1433, outer stopper slot; 1434, interior stopper slot; 144, mounting groove; 15, the first cutting slot; 151, the first installation portion; 1511, the first filings-breaking surface; 1512, the first cutting face; 152, the first spire; 2, knife rest; 21, push rod screw; 22, mounting blocks; 23, tool rest is connected; 24, boring cutter; 3, blade; 31, inner blade; 32, outer blade; .
Detailed description of the invention
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figure 1 to Figure 3, this right boring composite drill, comprise matrix 1, be arranged on the blade 3 of matrix 1 end, matrix 1 comprises the portion of leaning 12, be separately positioned on the staight shank portion 11 at two ends, the portion of leaning 12 and columniform knife bar portion 13, the diameter leaning portion 12 is greater than the diameter in staight shank portion 11, the diameter leaning portion 12 is greater than the diameter in knife bar portion 13, lean between portion 12 and knife bar portion 13 and pass through circular sliding slopes, staight shank portion 11 offers locating surface along axis, blade 3 comprises near axis inner blade 31 and the outer blade 32 protruding outer peripheral face, inner blade 31 and outer blade 32 are in triangular shape and at every all outwardly obtuse angle, centre on one side, namely blade 3 is hexahedrons, the limit of both sides, obtuse angle is cutting edge, the end in knife bar portion 13 is taper seat, the axis of rotating shaft is passed in the end of inner blade 31, the minimum tactical diameter of the wedge angle towards rotating shaft of outer blade 32 is less than the maximum rotating diameter of inner blade 31 wedge angle of side face toward the outside, namely inner blade 31 and outer blade 32 turn round the complete circle of composition one around axis, the tactical diameter of the wedge angle outwardly of outer blade 32 is greater than the diameter of matrix 1, because of but the hole wall of the wedge angle processing work of outer blade 32, knife bar portion 13 offers the first cutting slot 15 and the second cutting slot 14, chip is discharged from the first cutting slot 15 and the second cutting slot 14.
First cutting slot 15 comprises the first installation portion 151 of being arranged on end and spiral and to intersect to the first installation portion 151 and vertically to the first spire 152 leaning side, portion 12 and extend spirally on matrix 1, extend spirally i.e. groove coil shape to extend to side, the cross section of the first installation portion 151 comprises the first cutting face 1512 and the first filings-breaking surface 1511 in obtuse angle, first cutting face 1512 is offered and is equipped with interior stopper slot 1434, inner blade 31 is arranged in interior stopper slot 1434, first spire 152 extends to the first filings-breaking surface 1511, the length of the first cutting slot 15 is about the half of the total length in knife bar portion 13.
Second cutting slot 14 comprises the second installation portion 143 being arranged on end, spiral intersects to the second installation portion 143 and the second spire 142 extended spirally vertically on matrix 1 and parallel to the axis and intersect the straight trough portion 141 to the second spire 142, straight trough portion 141 offers to leaning portion 12 and forming the ending of arc surface at end, the cross section of the second installation portion 143 comprises the second cutting face 1432 and the second filings-breaking surface 1431 in obtuse angle, second cutting face 1432 is offered and is equipped with outer stopper slot 1433, outer stopper slot 1433 offers into the groove that is acute angle, outer blade 32 is installed by bolt-locking and is limited in outer stopper slot 1433, second spire 142 extends to the second filings-breaking surface 1431, second cutting face 1432 and the first cutting face 1512 are on same straight line, namely spire finishes up at the second filings-breaking surface 1431 place, the area of plane in the second cutting face 1432 is greater than the area of the plane of the second filings-breaking surface 1431, during cutting workpiece, on the obtuse angle of the talus accumulation that second cutting face 1432 cutting produces between the second cutting face 1432 and the second filings-breaking surface 1431, and discharge from the second spire 142 that the second filings-breaking surface 1431 extends out, helicoid is entered by facing directly, chip is not easily continuous, chip is easily ruptured, in the hole of easy discharge workpiece, straight trough portion 141 extends to the portion of leaning 12, chip is facilitated to discharge hole from straight trough portion 141.
Straight trough portion 141 offers mounting groove 144, mounting groove 144 to be opened in straight trough portion 141 and to be positioned at the second side, cutting face 1432, namely the second cutting face 1432 is crossing with knife bar portion 13 two intersection edges, the limit that straight trough portion 141 extends out near the second cutting face 1432, mounting groove 144 comprise perpendicular to matrix 1 axis end face and be parallel to the bottom surface of matrix 1 axis, namely in knife bar portion 13, offer the breach at a right angle, mounting groove 144 is provided with knife rest 2, knife rest 2 comprises the mounting blocks 22 be connected on bottom surface, be connected in company's tool rest 23 of mounting blocks 22 one end and be threaded in the push rod screw 21 of mounting blocks 22 other end, even tool rest 23 offers the locating slot in equilateral triangle shape, locating slot is provided with boring cutter 24, boring cutter 24 is in equilateral triangle body shape, boring cutter 24 is arranged in locating slot, push rod screw 21 can be pushed against on end face, the revolution external diameter of boring cutter 24 is greater than the revolution external diameter of outer blade 32.Push rod screw 21 can hold out against end face makes knife rest 2 not easily shake and displacement, keeps boring cutter 24 position consistency, the quality of hole machined is consistent, triangle body shape is arranged to by boring cutter 24, and wedge angle can be kept to cut, and can change cutting wedge angle in turn, simple and practical, cost is economized.
The utility model in an initial condition, lathe drives right boring composite drill to rotate, inner blade 31 drilling centre bore drilling deep hole gradually, make the obtuse angle cutting workpiece of outer blade 32, get out a full circle gradually, outer blade 32 protrudes the effect of cutting angle with reaming of knife bar portion 13 outer peripheral face, the counterbore that outer blade 32 is processed is carried out a reaming, the chip that inner blade 31 and outer blade 32 cut down respectively is discharged outside workpiece along the first cutting slot 15 and the second cutting slot 14, the wedge angle of boring cutter 24 can the hole inwall that cut of the outer blade 32 of right boring again, the precision in hole is made to reach engine request, time processing realizes the brill in hole, expand, the operations such as boring, working (machining) efficiency is high, precision is high, axiality is good.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.

Claims (5)

1. a right boring composite drill, comprises matrix, is arranged on several blades of matrix end, it is characterized in that, described blade comprises the inner blade of close axis and protrudes the outer blade of outer peripheral face, described matrix offers the first cutting slot and the second cutting slot;
Described first cutting slot comprises the first installation portion of being arranged on matrix end and spiral intersects to the first installation portion and the first spire extended spirally vertically on matrix, the cross section of described first installation portion comprises the first cutting face and the first filings-breaking surface in obtuse angle, described first cutting face is offered and is equipped with interior stopper slot, described inner blade is arranged in interior stopper slot, and described first spire extends to the first filings-breaking surface;
Described second cutting slot comprises the second installation portion being arranged on end, spiral intersects to the second installation portion and the second spire extended spirally vertically on matrix and be parallel to the axis of matrix and the straight trough portion of intersecting to the second spire, described outer blade is arranged in the stopper slot of the second cutting slot, the cross section of described second installation portion comprises the second cutting face and the second filings-breaking surface in obtuse angle, described second cutting face is offered and is equipped with outer stopper slot, described outer blade is arranged in outer stopper slot, the maximum revolution external diameter of described outer blade is greater than the external diameter of matrix, described second spire extends to the second filings-breaking surface, described second cutting face and the first cutting face are on same straight line,
Described straight trough portion offers mounting groove, described mounting groove is provided with knife rest, described knife rest is provided with boring cutter.
2. a kind of right boring composite drill according to claim 1, it is characterized in that, described mounting groove to be opened in straight trough portion and to be positioned at the second cutting face and the tangent side of the second spire, comprise the end face perpendicular to matrix axis and the bottom surface being parallel to matrix axis, described knife rest comprises the mounting blocks be connected on bottom surface, be connected in company's tool rest of mounting blocks one end and be threaded in the push rod screw of the mounting blocks other end, described boring cutter is arranged on and connects on tool rest, and described push rod screw can be pushed against on the end face of mounting groove.
3. a kind of right boring composite drill according to claim 2, is characterized in that, described even tool rest offers the locating slot in equilateral triangle shape, described boring cutter is equilateral triangle body shape, and described boring cutter is arranged in locating slot.
4. a kind of right boring composite drill according to claim 1,2 or 3, is characterized in that, the maximum rotating diameter of described boring cutter is greater than the maximum rotating diameter of outer blade.
5. a kind of right boring composite drill according to claim 1,2 or 3, it is characterized in that, described matrix comprises the portion of leaning, is separately positioned on the staight shank portion and columniform knife bar portion that lean two ends, portion, described first cutting slot and the second cutting slot are opened in knife bar portion, the described diameter leaning portion is greater than the diameter in staight shank portion, and described staight shank portion offers locating surface along axis.
CN201420535198.9U 2014-09-17 2014-09-17 A kind of right boring composite drill Expired - Fee Related CN204135419U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420535198.9U CN204135419U (en) 2014-09-17 2014-09-17 A kind of right boring composite drill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420535198.9U CN204135419U (en) 2014-09-17 2014-09-17 A kind of right boring composite drill

Publications (1)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104959659A (en) * 2015-06-15 2015-10-07 烟台旺远液压有限公司 Quartering hammer cylinder valve hole processing tool
CN105364139A (en) * 2015-12-22 2016-03-02 东方电气集团东方汽轮机有限公司 Machine clamping type indexable short-hole drill
CN106694962A (en) * 2017-01-04 2017-05-24 株洲钻石切削刀具股份有限公司 Drilling tool
CN106938355A (en) * 2017-03-20 2017-07-11 哈尔滨汽轮机厂有限责任公司 A kind of carbide-tipped reamer and its processing method
WO2020034270A1 (en) * 2018-08-14 2020-02-20 株洲钻石切削刀具股份有限公司 Indexable drilling tool

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104959659A (en) * 2015-06-15 2015-10-07 烟台旺远液压有限公司 Quartering hammer cylinder valve hole processing tool
CN105364139A (en) * 2015-12-22 2016-03-02 东方电气集团东方汽轮机有限公司 Machine clamping type indexable short-hole drill
CN106694962A (en) * 2017-01-04 2017-05-24 株洲钻石切削刀具股份有限公司 Drilling tool
CN106694962B (en) * 2017-01-04 2018-10-02 株洲钻石切削刀具股份有限公司 A kind of drilling cutters
CN106938355A (en) * 2017-03-20 2017-07-11 哈尔滨汽轮机厂有限责任公司 A kind of carbide-tipped reamer and its processing method
CN106938355B (en) * 2017-03-20 2019-01-04 哈尔滨汽轮机厂有限责任公司 A kind of carbide-tipped reamer and its processing method
WO2020034270A1 (en) * 2018-08-14 2020-02-20 株洲钻石切削刀具股份有限公司 Indexable drilling tool

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150204

Termination date: 20150917

EXPY Termination of patent right or utility model