CN205763905U - A kind of principal shaft locking structure - Google Patents
A kind of principal shaft locking structure Download PDFInfo
- Publication number
- CN205763905U CN205763905U CN201620514369.9U CN201620514369U CN205763905U CN 205763905 U CN205763905 U CN 205763905U CN 201620514369 U CN201620514369 U CN 201620514369U CN 205763905 U CN205763905 U CN 205763905U
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- handle
- knife
- locking structure
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Abstract
The utility model discloses a kind of principal shaft locking structure, including main shaft, position-limitting pin, handle of a knife and limited block.Main shaft is arranged on main spindle box, and this main shaft includes the housing being fixed on main spindle box and the shaft core being installed in rotation in housing, and the lower end of shaft core is provided with plug-in opening；The lower end of position-limitting pin forms fixing head；Limited block is fixed on the side of handle of a knife, the upper end of limited block is provided with the first hole, location, this hole, the first location is used for when handle of a knife is installed in shaft core and fixing head location fit, the inside of limited block is additionally provided with two pilot holes and two guidance sets being separately mounted in two pilot holes, guidance set includes elastic component and steel ball, and steel ball card is located on opening and exposes in the first hole, location.This utility model debugging assembling process is simple, can avoid producing revealing and pollute, and noise is little, length in service life, reliability high.
Description
Technical field
This utility model relates to a kind of principal shaft locking structure.
Background technology
Along with Aero-Space (aluminium alloy, titanium alloy), automobile, precision die (graphite electrode,
Red copper electrode), heavy industry (heavy castings, steel part), 3C (aluminium alloy, plastics) etc. represent
Property industry is to working (machining) efficiency (processing cost) and the requirement of machining accuracy, with turning-milling complex processing
Center is the multi-shaft interlocked lathe of representative, because of can complete in single clamping car, milling, brill, boring,
The working procedures such as tapping, obtain tremendous development in recent years, and the appearing as of turn-milling complex machining center carries
Machining accuracy and efficiency for part provide a kind of effective solution.Relatively with conventional car
Car is divided with milling, brill, boring, tapping procedures by bed with machining center (or carving and milling machine, drilling and tapping machine)
Not processing, the same board of turn-milling complex machining center meets various process requirements, and efficiency is high, smart
Degree is high, equipment complex buying expenses is low.The existing turn-milling complex machining center in market mostly is tradition and adds
Work center loaded turntable combines, and the lathe tool of turn-milling complex machining center and milling cutter share one
Main shaft.Different according to processing situation, main shaft need to switch turn-milling cutting state, spindle Turning at any time
Add man-hour: main shaft need to keep resting state, during main shaft Milling Process: main shaft need to be in contorted
State.
The various types of principal shaft locking structures of present stage market appearance: with following three as representative:
1, have employed deformation characteristic and the conicity locking structure of spring video disc.Shortcoming: by main shaft
The spring video disc in portion makees brake block and tapering friction lock, and debugging assembling process is complicated, because of air pressure
It is short of power and uses pressurized oil braking more, be easily generated leakage etc. and pollute；2, end-tooth locking device
Engaged and conic fastening device realizes locking.Shortcoming: be disposed with the most supporting inside main shaft
End-tooth, cause spindle shaft away from long, and profile of tooth produces at a high speed relatively strong winds resistance and noise cannot
Carry out high speed and high precision processing.3, handle of a knife positioning and locking locking mechanism is utilized.Shortcoming: utilize cutter
Handle simply connects the resting position on main shaft or lathe headstock, and locking effect is the best, and rigidity is not
Foot.All deficiencies of market existing typical case principal shaft locking structure are high with turn-milling complex machining center
Speedization, height are refined, generalization, modular developing by leaps and bounds are runed counter to, and these defects have become car
The milling Compositions of metal-working machines developing direction of principal shaft locking structure.
Utility model content
In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of main shaft
Locking mechanism, debugs assembling process simply, can avoid producing revealing and pollute, and noise is little, use
Life-span length, reliability are high.
The purpose of this utility model realizes by the following technical solutions:
A kind of principal shaft locking structure, including:
The main shaft being arranged on main spindle box, this main shaft includes the housing being fixed on main spindle box and can
The shaft core being rotatably mounted in housing, the lower end of shaft core is provided with plug-in opening；
Handle of a knife, the upper end plug-in mounting of this handle of a knife is fixed in this plug-in opening, and the lower end of this handle of a knife is provided with
Cutting tool installation manner hole；
It is positioned at the position-limitting pin of handle of a knife side, is installed in the lower section of described housing or main spindle box,
The lower end of position-limitting pin forms fixing head；
Limited block, is fixed on the side of handle of a knife, and the upper end of limited block is provided with the first hole, location, should
First hole, location is used for when handle of a knife is installed in shaft core and fixing head location fit, limited block
Inside is additionally provided with two pilot holes and two guidance sets being separately mounted in two pilot holes,
Two pilot holes are respectively positioned on the side in the first hole, location and all along the radial direction in the first hole, location
Extending, pilot hole is provided with the opening connected with the first hole, location near the one end in the first hole, location,
Guidance set includes elastic component and steel ball, and steel ball card is located on opening and exposes to the first hole, location
In, elastic component makes the past elastic force near the first direction, hole, location motion of steel ball for offer one,
Distance between two pilot holes positions hole from the one end near the first hole, location to away from first
One end be gradually increased, the intersection point of the centrage of two pilot holes is positioned at the center in the first hole, location
On line.
Preferably, the centrage of two pilot holes is in the same plane.
Preferably, the outside of fixing head forms the first taper surface and the second taper being mutually linked
Face, the second taper surface is positioned at the lower section of the first taper surface, this first taper surface and the second taper surface
External diameter be gradually increased the most from bottom to up, and the tapering of the first taper surface is less than the second taper surface
Tapering, this hole, the first location is straight hole, and the second taper surface is for being inserted into first in fixing head
Playing the guiding role during hole, location, the lower end of this first taper surface is used for being inserted in the first hole, location
And position hole interference fit with first.
Preferably, the lower surface of main shaft or main spindle box is provided with a screwed hole, position-limitting pin upper
End be provided with for the connecting portion being screwed onto in this screwed hole, the outside of connecting portion be provided with location shoulder
Platform, is folded with regulation pad between locating shoulder and this lower surface.
Preferably, the upper part of handle of a knife is HSK standard interface structure.
Preferably, limited block is connected by Flange joint dish and handle of a knife are fixing, Flange joint dish
The lower end of side and handle of a knife is fixed, and limited block is installed in the top of Flange joint dish opposite side.
Preferably, the lower end of handle of a knife is provided with projection portion, and the side of described Flange joint dish is provided with
Two hole, location, projection portion plug-in mounting is positioned in the second hole, location.
Preferably, the diameter of plug-in opening is gradually increased under upper, and the outside of handle of a knife upper end is formed
For the triconic face coordinated with the inwall of plug-in opening.
Preferably, forming connecting hole inside the upper end of handle of a knife, the upper end of connecting hole forms opening,
The connecting hole of handle of a knife is interval with a limiting plate with Cutting tool installation manner hole, and limiting plate is provided with even
Logical connecting hole and the first row pore in Cutting tool installation manner hole, the sidewall of handle of a knife offers for connecting
Connecting hole and the second row pore outside handle of a knife.
Preferably, second row pore near connecting hole one end to away from connecting hole one end by
The most downward-sloping.
Compared to existing technology, the beneficial effects of the utility model are: when in turning-milling complex processing
When the heart need to be switched to turning state by milling state, by the cutter of this utility model principal shaft locking structure
The upper end of handle is inserted in the Cutting tool installation manner hole of shaft core, and makes the fixing head of position-limitting pin with spacing
First hole, location plug-in mounting of block is fixed, and has so locked mandrel；And, fixing head when plug-in mounting,
Can contact with the steel ball of guiding mechanism, owing to the distance of two pilot holes is near the first hole, location
One end to away from first location hole one end be gradually increased, the friendship of the centrage of two pilot holes
Point is positioned on the centrage in the first hole, location, and two guiding mechanisms collectively constitute at 3 with counterbore to be determined
Position-limitting pin is played guide effect by bit architecture, by position-limitting pin toward the first center positioning hole
Top pressure, so can reduce the frictional force between the sidewall in position-limitting pin and the first hole, location, make
Shaft core detent mechanism handoff procedure is more smooth and easy, and then reduces exchanging knives process noise, because effectively reducing
Friction and there is the effect of guiding can stop the possibility of exchanging knives process position-limitting pin clamping stagnation, therefore can prolong
Length measuring mechanism service life, reliability are high.
Accompanying drawing explanation
Fig. 1 is the use view of this utility model principal shaft locking structure；
Fig. 2 is this utility model handle of a knife, limited block, Flange joint dish and the solid of position-limitting pin
Structural representation；
Fig. 3 is the elevational schematic view of Fig. 2；
Fig. 4 is the generalized section in Fig. 3 at B-B；
Fig. 5 is the structural representation of this utility model handle of a knife；
Fig. 6 is the structural representation of this utility model Flange joint dish；
In figure: 1, handle of a knife；11, first row pore；12, second row pore；13, spacing
Plate；15, Cutting tool installation manner hole；16, projection portion；17, connecting hole；2, fixing screw；3、
Limited block；31, plug；32, spring；33, steel ball；35, the first hole, location；36, lead
Xiang Kong；4, Flange joint dish；41, the second hole, location；5, main spindle box；6, regulation pad；
7, position-limitting pin；71, the first taper surface；72, the second taper surface.
Detailed description of the invention
Below, in conjunction with accompanying drawing and detailed description of the invention, this utility model is described further:
As shown in Figures 1 to 6, principal shaft locking structure of the present utility model, including main shaft, limit
Position pin 7, handle of a knife 1 and limited block 3.Main shaft is arranged on main spindle box 5, and this main shaft includes
The housing being fixed on main spindle box 5 and the shaft core being installed in rotation in housing, under shaft core
End is provided with plug-in opening；Position-limitting pin 7 is installed in described housing or the lower section of main spindle box 5, limit
The lower end of position pin 7 forms fixing head；The upper end plug-in mounting of this handle of a knife 1 is fixed in this plug-in opening,
The lower end of this handle of a knife 1 is provided with Cutting tool installation manner hole 15；Limited block 3 is fixed on the side of handle of a knife 1,
The upper end of limited block 3 is provided with the first hole, location 35, and this hole 35, the first location is at handle of a knife 1
With fixing head location fit when being installed in shaft core, the inside of limited block 3 is additionally provided with two guiding
Hole 36 and two guidance sets being separately mounted in two pilot holes 36, two pilot holes
36 sides being respectively positioned on the first hole, location 35 are also all prolonged along the first radial direction positioning hole 35
Stretching, pilot hole 36 is provided with near the one end in the first hole 35, location and connects with the first hole 35, location
Opening, guidance set includes elastic component and steel ball 33, steel ball 33 be fastened on opening and outside
Being exposed in the first hole, location 35, elastic component makes steel ball 33 toward near the first location for providing one
The elastic force of direction, hole 35 motion, the distance between two pilot holes 36 is near the first location
The one end in hole 35 is gradually increased to the one end away from the first hole 35, location.
Principal shaft locking structure of the present utility model can be applicable to turn-milling complex machining center, works as turnning and milling
Compositions of metal-working machines, when milling state, only need to utilize conventional milling handle of a knife 1 to fix with shaft core；When
When turn-milling complex machining center need to be switched to turning state by milling state, in turning-milling complex processing
Handle of a knife 1 on heart main shaft need to be switched to lock spindle tight knot of the present utility model by conventional milling handle of a knife 1
The handle of a knife 1 of structure, is inserted into the upper end of handle of a knife 1 in the Cutting tool installation manner hole 15 of shaft core, and makes
The fixing head of position-limitting pin 7 positions hole 35 plug-in mounting with the first of limited block 3 and fixes, and so locks
Tight mandrel；And, fixing head, when plug-in mounting, can contact with the steel ball 33 of guiding mechanism,
Owing to the distance of two pilot holes 36 is determined to away from first from the one end near the first hole 35, location
The one end in hole 35, position is gradually increased, and it is fixed that the intersection point of the centrage of two pilot holes 36 is positioned at first
On the centrage in hole 35, position, two guiding mechanisms collectively constitute three-point fix structure pair with counterbore
Position-limitting pin 7 plays guide effect, by position-limitting pin 7 toward the first center positioning hole 35
Top pressure, so can reduce the friction between position-limitting pin 7 and the sidewall in the first hole 35, location
Power, makes shaft core detent mechanism handoff procedure more smooth and easy, and then reduces exchanging knives process noise, because having
Effect reduce friction and have that the effect of guiding can stop exchanging knives process position-limitting pin 7 clamping stagnation can
Can, thus can extending mechanism service life, reliability high.
Specifically, the outside of pilot hole 36 is fixed with plug 31, and the two ends of spring 32 are respectively
Support and be located on plug 31 and steel ball 33.
Preferably, the upper part of handle of a knife 1 is HSK standard interface structure (preferably DIN
The standard interface of 69893), so can be useful in common HSK handle of a knife 1 turning-milling complex processing
In the heart, in actual application, the upper part of handle of a knife 1 can apply the cuttves such as BBT, BT, ISO equally
Handle interface shape.
Preferably, the centrage of two pilot holes 36 is in the same plane.
Preferably, the outside of fixing head forms the first taper surface 71 and the second cone being mutually linked
Shape face 72, the second taper surface 72 is positioned at the lower section of the first taper surface 71, say, that the
The external diameter of two taper surface 72 upper ends and the external diameter of the first taper surface 71 lower end are equal；This first cone
The external diameter of shape face 71 and the second taper surface 72 is gradually increased the most from bottom to up, and the first taper
The tapering in face 71 is less than the tapering of the second taper surface 72；This hole 35, the first location is straight hole,
Second taper surface 72, should for playing the guiding role when fixing head is inserted into the first hole 35, location
The lower end of the first taper surface 71 is used for being inserted in the first hole, location 35 and positions hole with first
35 interference fit.Preferably, the angle of the second taper surface 72 is self-locking angle.More preferably,
The lower surface of main shaft or main spindle box 5 is provided with a screwed hole, and the upper end of position-limitting pin 7 is provided with use
In with the connecting portion being screwed onto in this screwed hole, the outside of connecting portion is provided with locating shoulder, location
Regulation pad 6 it is folded with, so, by replacing different-thickness between shoulder and this lower surface
Regulation pad 6, can regulate the first taper surface 71 and insert the degree of depth in the first hole, location 35,
Thus regulate the degree of fixing head and the interference fit in the first hole 35, location.
Preferably, in order to lead further to, first location hole 35 upper end be provided with rounding or
Chamfering.
Preferably, limited block 3 is connected by Flange joint dish 4 is fixing with handle of a knife 1, and flange is even
The lower end of the side of flange 4 and handle of a knife 1 is fixed, and it is another that limited block 3 is installed in Flange joint dish 4
The top of side.
Preferably, the lower end of handle of a knife 1 is provided with projection portion 16, the one of described Flange joint dish 4
Side is provided with the second hole, location 41, and projection portion 16 plug-in mounting is positioned in the second hole, location 41.
Preferably, the diameter of plug-in opening is gradually increased under upper, the outside shape of handle of a knife 1 upper end
Become the triconic face for coordinating with the inwall of plug-in opening.
Preferably, connecting hole 17, the upper end shape of connecting hole 17 are formed inside the upper end of handle of a knife 1
Becoming opening, the connecting hole 17 of handle of a knife 1 is interval with a limiting plate with Cutting tool installation manner hole 15
13, limiting plate 13 is communicated with the first row pore of connecting hole 17 and Cutting tool installation manner hole 15
11, the sidewall of handle of a knife 1 offers for connecting connecting hole 17 and second outside handle of a knife 1
Steam vent 12.Connecting hole 17 both can be fixed with the tool-broaching mechanism of main shaft, can play again confession
The effect that gas and water pass through, owing to handle of a knife 1 is little with the fit clearance of cutter, mounting or dismounting cutter mistake
Journey inner chamber air can compress or the situation of vacuum, it is difficult to normal mounting or dismounting, and if not having steam vent, cutter
Handle 1 is with main shaft assembling and dissembling process, and the alignment of shafts is blown and is difficult to equally discharge, therefore arranges first
Steam vent 11 and second row pore 12 make handle of a knife 1 inner chamber and external communication.
More preferably, second row pore 12 near one end of connecting hole 17 to away from connecting hole
One end of 17 tilts gradually downward.
Further, the sidewall in Cutting tool installation manner hole 15 is bolted with fixing screw 2, utilizes solid
Determine screw 2 to setting the cutter in fixed cutting tool installing hole 15.
It will be apparent to those skilled in the art that can technical scheme as described above and structure
Think, make other various corresponding changes and deformation, and all these changes and deformation
Within all should belonging to this utility model scope of the claims.
Claims (10)
1. a principal shaft locking structure, it is characterised in that including:
The main shaft being arranged on main spindle box, this main shaft includes the housing being fixed on main spindle box and can
The shaft core being rotatably mounted in housing, the lower end of shaft core is provided with plug-in opening；
Handle of a knife, the upper end plug-in mounting of this handle of a knife is fixed in this plug-in opening, and the lower end of this handle of a knife is provided with
Cutting tool installation manner hole；
It is positioned at the position-limitting pin of handle of a knife side, is installed in the lower section of described housing or main spindle box,
The lower end of position-limitting pin forms fixing head；
Limited block, is fixed on the side of handle of a knife, and the upper end of limited block is provided with the first hole, location, should
First hole, location is used for when handle of a knife is installed in shaft core and fixing head location fit, limited block
Inside is additionally provided with two pilot holes and two guidance sets being separately mounted in two pilot holes,
Two pilot holes are respectively positioned on the side in the first hole, location and all along the radial direction in the first hole, location
Extending, pilot hole is provided with the opening connected with the first hole, location near the one end in the first hole, location,
Guidance set includes elastic component and steel ball, and steel ball card is located on opening and exposes to the first hole, location
In, elastic component makes the past elastic force near the first direction, hole, location motion of steel ball for offer one,
Distance between two pilot holes positions hole from the one end near the first hole, location to away from first
One end be gradually increased, the intersection point of the centrage of two pilot holes is positioned at the center in the first hole, location
On line.
2. principal shaft locking structure as claimed in claim 1, it is characterised in that two pilot holes
Centrage in the same plane.
3. principal shaft locking structure as claimed in claim 1, it is characterised in that fixing head
Outside forms the first taper surface and the second taper surface being mutually linked, and the second taper surface is positioned at first
The lower section of taper surface, the external diameter of this first taper surface and the second taper surface the most gradually increases
Greatly, and the tapering of the first taper surface is less than the tapering of the second taper surface, and this hole, the first location is
Straight hole, the second taper surface, should for playing the guiding role when fixing head is inserted into the first hole, location
The lower end of the first taper surface is used for being inserted in the first hole, location and joins with the first location hole interference
Close.
4. principal shaft locking structure as claimed in claim 3, it is characterised in that main shaft or
The lower surface of main spindle box is provided with a screwed hole, the upper end of position-limitting pin be provided with for be screwed onto this
Connecting portion in screwed hole, the outside of connecting portion is provided with locating shoulder, locating shoulder and this lower end
Regulation pad it is folded with between face.
5. principal shaft locking structure as claimed in claim 1, it is characterised in that handle of a knife upper
End is divided into HSK standard interface structure.
6. principal shaft locking structure as claimed in claim 1, it is characterised in that limited block leads to
Crossing that Flange joint dish and handle of a knife are fixing to be connected, the side of Flange joint dish is consolidated with the lower end of handle of a knife
Fixed, limited block is installed in the top of Flange joint dish opposite side.
7. principal shaft locking structure as claimed in claim 6, it is characterised in that under handle of a knife
End is provided with projection portion, and the side of described Flange joint dish is provided with the second hole, location, projection portion plug-in mounting
It is positioned in the second hole, location.
8. principal shaft locking structure as claimed in claim 1, it is characterised in that plug-in opening
Diameter is gradually increased under upper, and the outside of handle of a knife upper end is formed joins for the inwall with plug-in opening
The triconic face closed.
9. principal shaft locking structure as claimed in claim 1, it is characterised in that handle of a knife upper
Forming connecting hole inside end, the upper end of connecting hole forms opening, and the connecting hole of handle of a knife is pacified with cutter
Fill hole is interval with a limiting plate, and limiting plate is communicated with connecting hole and Cutting tool installation manner hole
First row pore, the sidewall of handle of a knife offers for connecting the outside connecting hole and handle of a knife
Two steam vents.
10. principal shaft locking structure as claimed in claim 1, it is characterised in that second exhaust
Hole tilts to the one end away from connecting hole gradually downward from the one end near connecting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620514369.9U CN205763905U (en) | 2016-05-30 | 2016-05-30 | A kind of principal shaft locking structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620514369.9U CN205763905U (en) | 2016-05-30 | 2016-05-30 | A kind of principal shaft locking structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205763905U true CN205763905U (en) | 2016-12-07 |
Family
ID=58138072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620514369.9U Withdrawn - After Issue CN205763905U (en) | 2016-05-30 | 2016-05-30 | A kind of principal shaft locking structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205763905U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105834460A (en) * | 2016-05-30 | 2016-08-10 | 广州市昊志机电股份有限公司 | Main shaft locking structure |
| CN108044135A (en) * | 2017-12-13 | 2018-05-18 | 广州市昊志机电股份有限公司 | A kind of turnning and milling composite high speed permanent magnet synchronization motor spindle |
-
2016
- 2016-05-30 CN CN201620514369.9U patent/CN205763905U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105834460A (en) * | 2016-05-30 | 2016-08-10 | 广州市昊志机电股份有限公司 | Main shaft locking structure |
| CN105834460B (en) * | 2016-05-30 | 2017-12-19 | 广州市昊志机电股份有限公司 | A kind of principal shaft locking structure |
| CN108044135A (en) * | 2017-12-13 | 2018-05-18 | 广州市昊志机电股份有限公司 | A kind of turnning and milling composite high speed permanent magnet synchronization motor spindle |
| CN108044135B (en) * | 2017-12-13 | 2024-04-09 | 广州市昊志机电股份有限公司 | Turning and milling composite high-speed permanent magnet synchronous electric spindle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161207 Effective date of abandoning: 20171219 |
|
| AV01 | Patent right actively abandoned |