CN207272210U - A kind of hole boring cutter - Google Patents
A kind of hole boring cutter Download PDFInfo
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- CN207272210U CN207272210U CN201721227627.6U CN201721227627U CN207272210U CN 207272210 U CN207272210 U CN 207272210U CN 201721227627 U CN201721227627 U CN 201721227627U CN 207272210 U CN207272210 U CN 207272210U
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- hole
- shaft
- cutter head
- pin
- boring cutter
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Abstract
A kind of hole boring cutter, including the shaft being connected with drilling machine, the internal diameter for the through hole that the shaft is passed through with it match, and bore hole cutter head is detachably arranged with the shaft, and shaft and bore hole cutter head are concentric, and the end of shaft passes through and is exposed to outside bore hole cutter head.By using above-mentioned technical proposal, such hole boring cutter can just pass through the through hole of top to carry out boring pin processing to the through hole of lower section, open up the required counterbore in place.And after being fed through hole boring cutter due to shaft, its end can be exposed outside hole boring cutter, and it can be extend into the through hole of lower section again during processing, so again since script shaft is the through hole through top, so ensure that hole boring cutter can keep stable during rotating, and the counterbore and the through hole of top and the through hole of lower section processed is on coaxial line.
Description
Technical field
Field of machining is the utility model is related to, more particularly to a kind of hole boring cutter.
Background technology
Hole boring cutter is mainly carried out used in boring pin process workpiece, it is during high-speed rotating workpiece
On pre-manufactured hole be expanded to certain size, make up to the machining of permissible accuracy and surface roughness.Boring generally exists
Carried out on boring machine, machining center and building-block machine, cylindrical hole, the spiral shell being mainly used on the workpiece such as machining box, stent and engine base
Pit, hole internal channel and end face；When using ancillary attachment, inside and outside spherical surface, taper hole etc. can be also processed.
And in the prior art, part workpiece may require that out two rows hole, and two rows hole is corresponding and is located at
In same vertical straight line.For example, shown in attached drawing 6, this kind of workpiece 4 includes a cylinder, and the lower edges of cylinder are to being externally provided with
Flange, and upper flange carries upper through hole 4a, and lower flange carries lower through-hole 4b.Herein, needed on lower through-hole 4b upwardly
The side of through hole opens up counterbore, and the size of the counterbore will be far longer than the size of through hole 4a, and the center of circle of counterbore 4c and upper
The center of circle of through hole 4a and lower through-hole 4b are also in same vertical straight line.But traditional boring cutter can not pass through upper through hole
4a carries out lower through-hole 4b boring pin processing, and for driving the rotating equipment volume of boring cutter excessive, is often subject to 4 side of workpiece
The obstruction of wall, therefore lower through-hole 4b can not be also processed, it is directed to what is used under the above situation thus, it is necessary to design
Hole boring cutter.
Utility model content
The purpose of this utility model is to provide a kind of hole boring cutter, and not only precision is high for it, while operation is also more convenient,
Substantially increase the efficiency of boring pin processing.
The above-mentioned purpose of the utility model technical scheme is that：A kind of hole boring cutter, including with brill
The shaft that bed is connected, the internal diameter for the through hole that the shaft is passed through with it match, and bore hole is detachably arranged with the shaft
Cutter head, shaft and bore hole cutter head are concentric, and the end of shaft passes through and is exposed to outside bore hole cutter head.
By using above-mentioned technical proposal, such hole boring cutter can just pass through the through hole of top to carry out boring to the through hole of lower section
Pin processing, opens up the required counterbore in place.And after being fed through hole boring cutter due to shaft, its end can be exposed outside hole boring cutter,
And can be extend into the through hole of lower section again during processing, so again since script shaft is the through hole through top,
So ensure that hole boring cutter can keep stable during rotating, and the counterbore and the through hole of top that process and lower section
Through hole be on the coaxial line.
Preferably, the pin hole one and pin hole two corresponded is respectively provided with the shaft and bore hole cutter head, it is described
Pin hole one and pin hole two are fed through same latch.
By using above-mentioned technical proposal, by the cooperation between latch and pin hole one and pin hole two, can ensure
In the case that bore hole cutter head is disassembled from shaft, and facilitate the fixation of shaft and bore hole cutter head.
Preferably, one end of the latch carries pin cap, and the other end has been wholely set some elastic pieces close to end, and
The elastic piece can be abutted against away from the other end end of set-point with the side of bore hole cutter head.
By using above-mentioned technical proposal, when bore hole tool bit casing is located in shaft, and pin hole one and latch
After hole two is corresponding, as soon as latch can just be fed through pin hole and pin hole two, so also effectively by bore hole cutter head with turning
Axis has been fixed on together.Simultaneously as elastic piece will upspring after latch passes through pin hole one and pin hole two, and its is complete
Portion can be in contact with the lateral surface of bore hole cutter head, so that when also just can preventing that hole boring cutter from first rotating boring pin, latch is from inserting
Fly away from out in pin hole one and pin hole two, cause falling apart for bore hole cutter head and shaft.
And when needing to pull out latch from pin hole one and pin hole two, it is close to as long as elastic piece is depressed into
Latch surface, is then able to successfully be pulled out from pin hole one and pin hole two and.So greatly improve
The removal efficiency of bore hole cutter head.
Preferably, it is provided with and the corresponding groove of elastic piece with the lock bolt.
By using above-mentioned technical proposal, so when the end of elastic piece is in contact with the side of bore hole cutter head,
Its end can be just embedded in a groove, avoid the problem of latch circumferentially rotates, so as to also can just reduce elastic piece
With the abrasion between bore hole cutter head.
Preferably, the side of the bore hole cutter head is provided with the limiting slot to match with the end of elastic piece.
By using above-mentioned technical proposal, such elastic piece can be hidden in groove after pushing, and such latch is cut
Face size can just try one's best it is equal with the internal diameter of pin hole one and pin hole two so that when hole boring cutter rotation when, with regard to energy
Enough reduce latch rocking in pin hole one and pin hole two.
Preferably, three pieces blade is evenly distributed with the side face of the bore hole cutter head, the bore hole cutter head is in adjacent two knife
Flange is equipped between piece.
By using above-mentioned technical proposal, it can so compare the counterbore uniformly and quickly on boring pin through hole, and boring pin
During the chip that produces also can be between flange and blade gap discharge, so as to improve the boring pin effect of hole boring cutter
Rate.
Preferably, the blade of blade described in three pieces tilts 12 °~15 ° to same direction.
By using above-mentioned technical proposal, such blade preferably can carry out boring pin to the surface of through hole, nor
It is easy to cause snapping for blade.
Preferably, the knife spine surface of the blade is into cambered surface, and the blade is in the edge of the end position of bore hole cutter head
Equipped with chamfering.
By using above-mentioned technical proposal, the workpiece chips that such blade boring pin comes out can be more successfully along blade
Knife spine move up, so as to improve the boring pin efficiency of counterbore, and also ensure that the smooth rate in counterbore boring pin face.
A kind of hole boring cutter application process, comprises the following steps：
S1, the through hole by one end of shaft through top, and the end is extend into the mounting hole of drilling machine；
Bore hole cutter head, be arranged up by S2 from the other end of shaft, and is mutually fixed with shaft, and the other end of shaft
Through bore hole cutter head and it is exposed to outside bore hole cutter head；
S3, move down shaft so that the other end for the shaft being exposed to outside bore hole cutter head extend into the logical of lower section
Kong Zhong, until blade is in contact with the outer surface of the through hole of lower section；
The mounting hole of drilling machine and shaft, be fixed together by S4, afterwards, opens motor and rotates hole boring cutter, and gradually pass through
Drilling machine pushes hole boring cutter, so that the counterbore at boring pin on the through hole of lower section.
By using above-mentioned technical proposal, the counterbore come out with this kind of hole boring cutter boring pin, is not only with the through hole above and below it
In same axial line, and boring pin process is also relatively simple, and precision is higher.
Preferably, in S2 the other end surface meeting of bore hole cutter head is then exposed to after bore hole cutter head is fixed in shaft
Lubricating oil in coating.
By using above-mentioned technical proposal, due to shaft often occur when rotation it is certain rock, and this
During shaft can touch where boring pin through hole inner wall, the mill of through hole is so be easy to cause under the action of frictional force
Damage, therefore, after bore hole cutter head is installed, lubricating oil is coated on the surface of shaft, logical this makes it possible to greatly reduce
The abrasion in hole.
In conclusion the utility model has the advantages that：
1st, shaft is first fed through through hole above workpiece, is then loaded on bore hole cutter head, and by exposed in bore hole cutter head
Outer shaft end extend into the through hole below workpiece, so that counterbore and upper through hole and lower through-hole that boring pin comes out are in concentric
On line；
2nd, by cooperating to shaft and hole boring cutter being fixed together between latch and pin hole, so as to carry significantly
The high disassembly efficiency of shaft and bore hole cutter head；
3rd, after bore hole cutter head is installed, and the lubricating oil in the shaft end coating being exposed to outside bore hole cutter head, so
The abrasion between shaft and through hole can be reduced.
Brief description of the drawings
Fig. 1 is the structure diagram one of the hole boring cutter of embodiment one；
Fig. 2 is enlarged drawing at the A of Fig. 1；
Fig. 3 is the structure diagram two of the hole boring cutter of embodiment one；
Fig. 4 is the structure diagram of the bore hole cutter head of embodiment two；
Fig. 5 is the flow of installation figure of embodiment three；
Fig. 6 is the structure diagram of workpiece.
Reference numeral：1st, shaft；11st, pin hole one；2nd, bore hole cutter head；21st, pin hole two；22nd, limiting slot；23rd, blade；
231st, blade；232nd, knife spine；233rd, chamfering；24th, flange；241st, guiding groove；3rd, latch；31st, cap is sold；32nd, elastic piece；321st, it is convex
Rise；33rd, groove；4th, workpiece；4a, upper through hole；4b, lower through-hole；4c, counterbore.
Embodiment
The utility model is described in further detail below in conjunction with attached drawing.
Embodiment one,
As shown in attached drawing 1 to attached drawing 3, a kind of hole boring cutter, including shaft 1, the shaft 1 and the upper through hole of the workpiece passed through
4a's and lower through-hole 4b is equal sized, and the lower end of shaft 1 is detachably arranged with a bore hole cutter head 2, and bore hole cutter head 2 and shaft
1 is concentric.Herein, bore hole cutter head 2 can be designed according to the counterbore 4c for being actually needed boring pin.
Since bore hole cutter head 2 is detachably secured in shaft 1, between bore hole cutter head 2 and shaft 1 can
Dismounting mode can more actual conditions determine, for example, card slot is set on the bore hole cutter head 2 and shaft 1 respectively and snap ring come into
Internal and external threads are set to be threadedly coupled respectively in row clamping or bore hole cutter head 2 and shaft 1.And herein, shaft 1 and hole boring cutter
Pin hole 1 and pin hole 2 21 are offered on first 2 respectively, and pin hole 1 and pin hole 2 21 are correspondingly arranged.
Also, same latch 3 is fed through in pin hole 1 and pin hole 2 21, so substantially increases bore hole cutter head 2 and shaft 1
Disassembly efficiency.
In addition, latch 3 is thrown out of when hole boring cutter rotates from pin hole 1 and pin hole 2 21 in order to prevent,
So one end of latch 3 carries circular pin cap 31, the size of the pin cap 31 is more than the ruler of pin hole 1 and pin hole 2 21
It is very little.Also, latch 3 has been close to relative to the other end of pin cap 31 some elastic pieces 32 have been wholely set, elastic piece 32 herein
Quantity is two panels, and is distributed in the both sides up and down of latch 3, and is equally distributed along the side face of latch 3.When latch 3 is being inserted
During entering to pin hole 1 and pin hole 2 21, elastic piece 32 can be because be subject to pin hole 1 and pin hole 2 21
Extrude and topple over to 3 surface of latch, until whole elastic piece 32 passes through pin hole 1 and pin hole 2 21, elastic piece 32
Reset condition can be returned under the action of elasticity again.Afterwards, the end of elastic piece 32 will abut the side of bore hole cutter head 2
Face, so that under the action of elastic piece 32 and 31 both sides of pin cap are spacing at the same time, it becomes possible to ensure that latch 3 rotates boring pin in hole boring cutter
During be not thrown out of.Also, if necessary to if bore hole cutter head 2 is disassembled from shaft 1, then then only need by
The surface of elastic piece 32 to bore hole cutter head 2 is pressed and is exited, so as to also substantially increase the efficiency of dismounting.
Furthermore to be further ensured that latch 3 and the matching degree of pin hole 1 and pin hole 2 21, it can make to insert as far as possible
Pin 3 and the inner peripheral surface of pin hole 1 and pin hole 2 21 fit, and therefore, the surface of latch 3 is further opened with groove 33, and
Groove 33 is corresponding with elastic piece 32, so when latch 3 is inserted into or exits the process of pin hole 1 and pin hole 2 21
In, elastic piece 32 can be just pressed into groove 33 so that the surface of elastic piece 32 and the surface of latch 3 are to be in same circle
On week.So as to substantially increase the matching degree of pin hole 1 and pin hole 2 21 and latch 3, avoid hole boring cutter and exist
Shake when rotation, and cause the damage of pin hole 1 and pin hole 2 21.
Moreover, here in order to making the end of elastic piece 32 preferably be connected to the surface of bore hole cutter head 2, therefore, boring
Limiting slot 22 corresponding with elastic piece 32 is further opened with the surface of hole cutter head 2.And the end of elastic piece 32 is with protrusion
321, protrusion 321 can be engaged with limiting slot 22, so that, be conducive to latch 3 and be more stably threaded through pin hole 1 and insert
In pin hole 2 21.
Embodiment two,
As shown in Figure 4, a kind of hole boring cutter, on the basis of embodiment one, on the side face of the top of bore hole cutter head 2
It is even that three pieces blade 23 is distributed with, and a flange 24 is equipped between adjacent two panels blade 23, and the blade 231 of each blade 23
It is inclined herein to tell somebody what one's real intentions are as 13.5 ° to 12 °~15 ° of same direction inclination.Meanwhile flange 24 is in the blade towards blade 23
231 sides are also provided with guiding groove 241, and the knife spine 232 of blade 23 is into cambered surface, plus blade 23 in bore hole cutter head 2
The edge of end position is equipped with chamfering 233, and the area of chamfering 233 gradually increases from blade 231 to 24 direction of flange, so
Easily guide and moved up by knife spine 232 and blade 231 of the chip that boring pin gets up respectively along two blades, so as to also just subtract
Small obstruction of the chip to boring pin process.
Embodiment three,
As shown in Figure 5, a kind of application process of hole boring cutter, on the basis of implementing two, if a kind of workpiece has
Upper and lower two through holes, and counterbore 4c is opened up above lower through-hole 4b, first compare shaft 1 from pin hole 1 during this
Compared near one end pass through upper through hole 4a from the top of upper through hole 4a；Afterwards, the upper end of shaft 1 is extend into the mounting hole of drilling machine
In, shaft 1 is not fixed mutually with the mounting hole of drilling machine first at this time；Next bore hole cutter head 2 is covered at the lower through-hole 4b of shaft 1
It is set in shaft 1, and the end of exposed shaft 1 is in the outside of bore hole cutter head 2, and treat that pin hole 1 and pin hole 2 21 are opposite
When answering, it is inserted into latch 3 in pin hole 1 and pin hole 2 21, realizes the fixation of bore hole cutter head 2 and shaft 1；So
Afterwards, lubricating oil is coated with the end for the shaft 1 being exposed to outside bore hole cutter head 2, and shaft 1 is moved down, until shaft 1
End is extend into through hole, and the end of bore hole cutter head 2 and the upper surface of lower through-hole 4b abut against position；Finally, abutting is passed through
Screw rod mutually fixes shaft 1 with drilling machine, and opens electric motor starting drilling machine, and afterwards, staff can then push hole boring cutter and carry out boring
Lower through-hole 4b is sold, makes more accurately and quickly open up out counterbore 4c on lower through-hole 4b.
This specific embodiment is only explanation to the utility model, it is not the limitation to the utility model, ability
Field technique personnel as needed can make the present embodiment the modification of no creative contribution after this specification is read, but
As long as all protected in the right of the utility model be subject to Patent Law.
Claims (8)
1. a kind of hole boring cutter, including the shaft being connected with drilling machine（1）, it is characterized in that：The shaft（1）The through hole passed through with it
Internal diameter match, the shaft（1）On be detachably arranged with bore hole cutter head（2）, shaft（1）With bore hole cutter head（2）It is concentric,
And shaft（1）End pass through and be exposed to bore hole cutter head（2）Outside.
2. a kind of hole boring cutter according to claim 1, it is characterized in that：The shaft（1）With bore hole cutter head（2）Upper band respectively
There is the pin hole one corresponded（11）With pin hole two（21）, the pin hole one（11）With pin hole two（21）It is fed through same
One latch（3）.
3. a kind of hole boring cutter according to claim 2, it is characterized in that：The latch（3）One end carry pin cap（31）, separately
One end has been wholely set some elastic pieces close to end（32）, and the elastic piece（32）Away from the other end end of set-point
Can be with bore hole cutter head（2）Side abut against.
4. a kind of hole boring cutter according to claim 3, it is characterized in that：The latch（3）Pin be provided with and elastic piece
（32）Corresponding groove（33）.
5. a kind of hole boring cutter according to claim 4, it is characterized in that：The bore hole cutter head（2）Side be provided with elasticity
Piece（32）The limiting slot that matches of end（22）.
6. a kind of hole boring cutter according to claim 1, it is characterized in that：The bore hole cutter head（2）Side face on be uniformly distributed
There is three pieces blade（23）, the bore hole cutter head（2）In adjacent two blade（23）Between be equipped with flange（24）.
7. a kind of hole boring cutter according to claim 6, it is characterized in that：Blade described in three pieces（23）Blade（231）To
Same direction tilts 12 °~15 °.
8. a kind of hole boring cutter according to claim 7, it is characterized in that：The blade（23）Knife spine（232）Surface is into arc
Face, and the blade（23）In bore hole cutter head（2）The edge of end position be equipped with chamfering（233）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721227627.6U CN207272210U (en) | 2017-09-23 | 2017-09-23 | A kind of hole boring cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721227627.6U CN207272210U (en) | 2017-09-23 | 2017-09-23 | A kind of hole boring cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207272210U true CN207272210U (en) | 2018-04-27 |
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ID=61982761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721227627.6U Active CN207272210U (en) | 2017-09-23 | 2017-09-23 | A kind of hole boring cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207272210U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107498075A (en) * | 2017-09-23 | 2017-12-22 | 慈溪市中航精密机械设备制造有限公司 | A kind of hole boring cutter and its application process |
-
2017
- 2017-09-23 CN CN201721227627.6U patent/CN207272210U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107498075A (en) * | 2017-09-23 | 2017-12-22 | 慈溪市中航精密机械设备制造有限公司 | A kind of hole boring cutter and its application process |
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