CN109773226A - A kind of numerically controlled lathe knife tower of strong applicability - Google Patents
A kind of numerically controlled lathe knife tower of strong applicability Download PDFInfo
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- CN109773226A CN109773226A CN201910175324.1A CN201910175324A CN109773226A CN 109773226 A CN109773226 A CN 109773226A CN 201910175324 A CN201910175324 A CN 201910175324A CN 109773226 A CN109773226 A CN 109773226A
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- central axis
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- pedestal
- numerically controlled
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Abstract
A kind of numerically controlled lathe knife tower of strong applicability, it is mainly made of pedestal, cutterhead, end face arc fluted disc, central axis, drawing cylinder, numerical control decelerating motor, wherein drawing cylinder control end face arc-shaped gear disk engagement with separate, numerical control decelerating motor carries out precision positioning by the indexing of centre axis movable knife disc, end face arc fluted disc；Structure of the invention is succinct, component is few, and manufacture and installation maintenance are all very convenient, and applicability is especially strong.
Description
Technical field
The present invention relates to a kind of machining spindle unit, especially a kind of machining center main axle unit.
Background technique
Lathe is the machine tool of industry, with the development and development of national equipment manufacture, lathe also whole NC postprocessing development；
And when workpieces processing is complex, indexable knife tower is exactly indispensable critical component.The revolution positioning accuracy of knife tower and rigidity are right
Processing quality can have a direct impact；The knife tower structure of traditional numeric-control lathe is complicated, at high cost, maintenance is also inconvenient；To client
Bring burden.
Summary of the invention
That the object of the present invention is to provide a kind of precision is high, rigidity is strong, structure is simple, strong applicability numerically controlled lathe knife tower.
In order to reach above-mentioned goal of the invention, the technical scheme adopted by the invention is as follows: it is mainly by pedestal, cutterhead, end
Face arc fluted disc, central axis, drawing cylinder, numerical control decelerating motor composition, it is characterised in that: end face arc fluted disc uses two panels tooth
End face arc fluted disc structure, relatively traditional three pieces increment face arc fluted disc structure are more simple, rigidity and precision under same specification
It is higher；Two panels increment face arc fluted disc is divided into active toothed disk and static tooth plate；Be provided in cutterhead rear portion a hole installation active toothed disk with it is quiet
Fluted disc, wherein active toothed disk is fixedly mounted in cutterhead, is clearance fit between the hole that the outer circle of static tooth plate and among the above cutterhead are opened, and
And a sealing ring is installed between the two, static tooth plate is fixedly mounted in pedestal；Cutterhead and active toothed disk are fixed to each other with central axis
Installation is integrated；Front support bearing is installed between central axis and static tooth plate, front support bearing can axial direction and rotary motion, it can be
Single bearing can also the combination of inhomogeneity bearing；The cylinder body of drawing cylinder is formed by pedestal processing step hole, and piston is hollow knot
Structure, and be mounted in the stepped hole；Piston bush on center shaft with central axis clearance fit；The front end of piston and front support axis
It holds and is in contact, the rear end of piston is in contact with rear support bearing；Rear support bearing is mounted between central axis and rear flange, rear to prop up
Support bearing can axial direction and rotary motion, it can for single bearing also inhomogeneity bearing combine；Rear flange is fixedly mounted on pedestal
Rear end is linked together with pedestal, rear flange and piston, central axis, rear support coaxial bearing；Central axis is after rear support bearing
End is equipped with a mainshaft nut；The output shaft of numerical control decelerating motor is coupled by shaft coupling with central axis, numerical control decelerating motor
Shell be mounted on rear flange.The preferred planetary reducing motor of numerical control decelerating motor, it is secondary to select worm gear reducer motor.
For convenience of description, it is front that hand of cutter is leaned in the present invention, otherwise is rear.
As a further improvement of the above technical scheme, the pedestal and piston are equipped between the end face of hand of cutter
Compression spring, the structure can increase tightening force when usual, when drawing cylinder is unpowered, can voluntarily tense two panels tooth end arc
Shape fluted disc, so that it will not arbitrarily misplace.
As a further improvement of the above technical scheme, there are two travel switches for installation on the rear flange, for examining
Measured center axis is moved forward and backward position, and the trip switchs preferred inductive switch.
The beneficial effects of the present invention are: the present invention is fixed due to carrying out cutterhead precision equal part using two panels increment face arc fluted disc
Position, thus its precision is high, rigidity is good；In addition two panels increment of the present invention face arc fluted disc and point of a knife axial distance lean on closely, in this way
Be conducive to rigid raising；Pedestal and piston are equipped with compression spring between the end face of hand of cutter, which can when usual
Two panels increment face arc fluted disc can voluntarily be tensed, so that it will not arbitrarily misplace when drawing cylinder is unpowered by increasing tightening force；
Structure of the invention is succinct, component is few, and manufacture and installation maintenance are all very convenient, and applicability is especially strong.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of first embodiment of the invention.
Fig. 2 is the center spindle structure schematic diagram of first embodiment of the invention.
Fig. 3 is the main view and right side structural representation of the shaft coupling of first embodiment of the invention.
Fig. 4 is the structural schematic diagram of second embodiment of the invention.
Fig. 5 is the structural schematic diagram of third embodiment of the invention.
Fig. 6 is the structural schematic diagram of fourth embodiment of the invention.
In figure: 1 is pedestal, and 2 be cutterhead, and 3 be sealing ring, and 4 be active toothed disk, and 5 be static tooth plate, and 6 be center axis, and 7 be piston,
8 be numerical control decelerating motor, and 9 be radial ball bearing, and 10 be angular contact bearing, and 11 be 2 bugle contact bearings, and 12 be rear flange, 13
For heavily loaded rectangular pressure spring, 14 be mainshaft nut, and 15 be inductive switch, and 16 be shaft coupling, and 17 be locating plate, 20 for No. 3 to
Heart ball bearing, 21 be 3 bugle contact bearings, and 22 be connector sleeve, and 23 be tin bronze sliding bearing, and 24 be needle roller thrust bearing, 25
It is No. 2 tin bronze sliding bearings for thrust ball bearing, 26,27 be retarder mounting plate, and 28 be forward flange.
Specific embodiment
First embodiment shown in referring to Fig.1, it is mainly by pedestal 1, cutterhead 2, end face arc fluted disc, central axis 6, tension
Oil cylinder, numerical control decelerating motor 8 form.Two panels increment face arc fluted disc is divided into active toothed disk 4 and static tooth plate 5；It is opened in 2 rear portion of cutterhead
There are hole installation active toothed disk 4 and static tooth plate 5, wherein the screw of active toothed disk 4 and positioning pin are fixedly mounted in cutterhead 2, static tooth plate 5
Between outer circle and the hole that cutterhead 2 is opened among the above it is 0.1 millimeter of clearance fit, and a sealing ring 3 is installed between the two, it is quiet
The screw of fluted disc 5 and positioning pin are fixedly mounted in pedestal 1；Cutterhead 2 and active toothed disk 4 and central axis 6 are fixed to each other and are installed as one
Body；Front support bearing is installed, front support bearing is by a radial ball bearing 9 and an angular contact between central axis 6 and static tooth plate 5
Bearing 10 combines, and is clearance fit between the outer ring and static tooth plate 5 of radial bearing 9 and angular contact bearing 10 and pedestal 1；Drawing cylinder
Cylinder body formed by 1 processing step hole of pedestal, piston 7 is hollow structure, and is mounted in the stepped hole；7 sets of piston in
The clearance fit for being 1 millimeter between central axis in mandrel 6；The front end of piston 7 is in contact with 10 outer ring of angular contact bearing, living
The rear end of plug 7 is in contact with 2 bugle contact bearing, 11 outer ring；2 bugle contact bearings 11 be mounted on central axis 6 and rear flange 12 it
Between, the outer ring of 2 bugle contact bearings 11 and rear flange 12 are clearance fit；Rear flange 12 is fixedly mounted on 1 rear end of pedestal, with seat
Body 1 is linked together, and rear flange 12 and piston 7, central axis 6,2 bugle contact bearings 11 are coaxial；Central axis 6 is in 2 bugle engagement shafts
The rear end for holding 11 is equipped with a mainshaft nut 14；The output shaft of numerical control decelerating motor 8 passes through shaft coupling 16 and central axis 6
It connects, the shell of numerical control decelerating motor 8 is mounted on rear flange 12.
Pedestal 1 and piston 7 are equipped with 6 heavily loaded rectangular pressure springs 13 between the end face in 2 direction of cutterhead, and the structure is flat
Chang Shike, which increases tightening force, can voluntarily tense two panels increment face arc fluted disc, so that it will not random when drawing cylinder is unpowered
Dislocation.
It is provided with locating slot on central axis 6, a locating plate 17 is installed on 14 end face of mainshaft nut, on 17 inner ring of locating plate
It is machined in the locating slot that anti-rotation seam allowance is stuck on central axis 6.Opened on 12 cylindrical surface of rear flange there are two with 14 end of mainshaft nut
The corresponding hole in face, there are two inductive switches 15 for installation in the hole, are moved forward and backward position for inspection center's axis.
The central axis and shaft coupling of the first embodiment referring to shown in Fig. 2,3, center shaft tail end are machined with a locating slot K
With inner hole F；Shaft coupling cylinder front end is machined with the external cylindrical surface M of the corresponding clearance fit of inner hole F of center shaft tail end；Shaft coupling
The rear end of device processes the outside cylinder cambered surface N of clearance fit corresponding with the inner hole F of center shaft tail end and determining for center shaft tail end
The boss H of the corresponding clearance fit of position slot K；Shaft coupling center be machined with hole corresponding with numerical control geared motor output shaft with
Keyway, their preferred interference fits.The coupling structure, can accurate transfer rotary motion, also allow for central axis and shaft coupling
Axially opposing displacement, in addition its structure is simple, is compact, easy to manufacture, applicability extra-heavy.
It is piston 7 and 12 structure of rear flange referring to the main distinction of second embodiment shown in Fig. 4 and first embodiment
Difference, in addition rear support bearing is combined by No. 3 radial ball bearings 20 and a 3 bugle contact bearings 21.7 rear end of piston adds
For work at indent pore structure, rear flange 12, which is machined with, is processed into the convex of the corresponding clearance fit of indent pore structure with 7 rear end of piston
Ring；The structure can effectively shorten knife tower length, make structure more compact.
The main distinction of 3rd embodiment and the first, second embodiment referring to Figure 5 is front and back spring bearing knot
Structure is different with detection switch installation site.Front support bearing is by a needle roller thrust bearing 24 and a tin bronze in the present embodiment
Sliding bearing 23 forms；In addition for convenience of static tooth plate 5 positioning and pedestal 1 it is easy to process, be equipped between static tooth plate 5 and pedestal 1
One connector sleeve 22, their preferred interference fits；It is clearance fit between tin bronze sliding bearing 23 and connector sleeve 22；Rear support
Bearing is made of a thrust ball bearing 25 and a No. 2 tin bronze sliding bearings 26.The present embodiment detection switch 15 uses axis
To being mounted on retarder mounting plate 27.
Above is only a specific embodiment of the present invention, but structure feature of the invention is not limited thereto, Ren Heben
The technical staff in field, made changes or modifications all cover within the scope of the patent of the present invention within the field of the present invention,
Such as fourth embodiment shown in fig. 6 is exactly to organically combine and increase by 28 structure of forward flange in the first, second embodiment, is also existed
In the scope of the present invention.
Claims (6)
1. a kind of numerically controlled lathe knife tower of strong applicability, it is mainly by pedestal, cutterhead, end face arc fluted disc, central axis, tension oil
Cylinder, numerical control decelerating motor composition, it is characterised in that: end face arc fluted disc uses two panels increment face arc fluted disc structure, two panels tooth
End face arc fluted disc is divided into active toothed disk and static tooth plate；Hole installation active toothed disk and static tooth plate are provided in cutterhead rear portion, wherein moving
Fluted disc is fixedly mounted in cutterhead, is clearance fit between the hole that the outer circle of static tooth plate and among the above cutterhead are opened, and pacify between the two
Equipped with a sealing ring, static tooth plate is fixedly mounted in pedestal；The installation that is fixed to each other of cutterhead and active toothed disk and central axis is integrated；
Front support bearing is installed between central axis and static tooth plate, front support bearing can axial direction and rotary motion, it can be single bearing
It can the combination of inhomogeneity bearing；The cylinder body of drawing cylinder is formed by pedestal processing step hole, and piston is hollow structure, and is mounted on
In the stepped hole；Piston bush on center shaft with central axis clearance fit；The front end of piston is in contact with front support bearing, living
The rear end of plug is in contact with rear support bearing；Rear support bearing is mounted between central axis and rear flange, and rear support bearing can axis
To and rotary motion, it can for single bearing also inhomogeneity bearing combine；Rear flange is fixedly mounted on pedestal rear end, with pedestal
It is linked together, rear flange and piston, central axis, rear support coaxial bearing；Central axis is equipped with one in the rear end of rear support bearing
A mainshaft nut；The output shaft of numerical control decelerating motor is coupled by shaft coupling with central axis, the shell installation of numerical control decelerating motor
On rear flange.
2. a kind of numerically controlled lathe knife tower of strong applicability according to claim 1, it is characterised in that: the pedestal and work
Plug is equipped with compression spring between the end face of hand of cutter.
3. a kind of numerically controlled lathe knife tower of strong applicability any one of according to claim 1 or 2, it is characterised in that: described
Rear flange on installation there are two travel switch.
4. a kind of numerically controlled lathe knife tower of strong applicability any one of according to claim 1 or 2, it is characterised in that: described
Central axis on be provided with locating slot, a locating plate is installed on mainshaft nut end face, anti-rotation is machined on locating plate inner ring and stops
In the locating slot of mouth card on center shaft.
5. a kind of numerically controlled lathe knife tower of strong applicability any one of according to claim 1 or 2, it is characterised in that: described
Center shaft tail end be machined with a locating slot and inner hole；The inner hole that shaft coupling cylinder front end is machined with center shaft tail end is corresponding
Clearance fit external cylindrical surface；The rear end of shaft coupling processes the outer circle of clearance fit corresponding with the inner hole of center shaft tail end
The boss of the corresponding clearance fit of the locating slot of column cambered surface and center shaft tail end；Shaft coupling center is machined with slows down with numerical control
The corresponding hole of motor output shaft and keyway, their preferred interference fits.
6. a kind of numerically controlled lathe knife tower of strong applicability any one of according to claim 1 or 2, it is characterised in that: described
Piston rear end be processed into indent pore structure, rear flange, which is machined with, is processed into the corresponding gap of indent pore structure with piston rear end
The bulge loop of cooperation.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910017348 | 2019-01-08 | ||
| CN2019100173484 | 2019-01-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109773226A true CN109773226A (en) | 2019-05-21 |
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| CN201910175324.1A Pending CN109773226A (en) | 2019-01-08 | 2019-03-08 | A kind of numerically controlled lathe knife tower of strong applicability |
| CN201920293831.0U Active CN209565502U (en) | 2019-01-08 | 2019-03-08 | A kind of numerically controlled lathe knife tower of strong applicability |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920293831.0U Active CN209565502U (en) | 2019-01-08 | 2019-03-08 | A kind of numerically controlled lathe knife tower of strong applicability |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113941718A (en) * | 2020-07-17 | 2022-01-18 | 裕纮科技有限公司 | Power tool turret device |
-
2019
- 2019-03-08 CN CN201910175324.1A patent/CN109773226A/en active Pending
- 2019-03-08 CN CN201920293831.0U patent/CN209565502U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113941718A (en) * | 2020-07-17 | 2022-01-18 | 裕纮科技有限公司 | Power tool turret device |
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| Publication number | Publication date |
|---|---|
| CN209565502U (en) | 2019-11-01 |
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