CN209565489U - A kind of close-coupled machining center main axle unit - Google Patents
A kind of close-coupled machining center main axle unit Download PDFInfo
- Publication number
- CN209565489U CN209565489U CN201920293804.3U CN201920293804U CN209565489U CN 209565489 U CN209565489 U CN 209565489U CN 201920293804 U CN201920293804 U CN 201920293804U CN 209565489 U CN209565489 U CN 209565489U
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- Prior art keywords
- knife
- forging
- main shaft
- oil cylinder
- pressing plate
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Abstract
A kind of close-coupled machining center main axle unit, it is mainly made of spindle drum, spindle motor, main shaft central spindle, main shaft forward flange, main shaft bearing, oil cylinder of forging a knife, compression spring, broaching tool device, broaching tool bar, it is equipped with one in the middle part of its spindle drum and hollow forges a knife oil cylinder and rolling bearing to reduce and forge a knife power and increase broach force, to improve the main shaft service life, enhancing rigidity；In addition its is compact-sized, length is short simplifies main shaft part layout, is a kind of very strong machining spindle unit of applicability.
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
With the development and development of national equipment manufacture, main product of the numerically-controlled machine tool as machine tool industry, it has also become
Realize the key equipment of equipment manufacture modernization.
Traditional processing central principal axis oil cylinder of forging a knife is mounted on main shaft tail, and main axis length is long, in some demand simple structures
Equipment in using very passive.In addition the weak spring of pressure of machining center main axle unit at present on the market generallys use dish-shaped bullet
Spring group, disk spring group length is long, and dynamic balance owes poor；If but using other compression springs such as Rectangular Spring, though structure
Simply, dynamic balance is also better than disc spring group, but its pressure owes deficiency again.Tradition oil cylinder spring pressure of forging a knife is bigger, before main shaft
Bearing impact is bigger, can thus reduce bearing life, influences main shaft performance.
Summary of the invention
The object of the present invention is to provide a kind of compact-sized, superior performance machining center main axle units.
A kind of goal of the invention of compact-sized, superior performance machining center main axle unit is provided in order to reach, the present invention
Used technical solution are as follows: it mainly by spindle drum, spindle motor, main shaft central spindle, main shaft forward flange, main shaft bearing, forge a knife
Oil cylinder, compression spring, broaching tool device, broaching tool bar composition, it is characterised in that: main shaft forward flange 1 is mounted on 2 front end of spindle drum, main shaft
Central spindle 3 is coaxially mounted in main shaft forward flange 1 and spindle drum 2 by forward spindle bearing group 4 and rear main shaft bearing group 5；It forges a knife oil
Cylinder is hollow structure, and cylinder body 6 is fixedly mounted on spindle drum 2, and the piston 7 for oil cylinder of forging a knife is by a rolling bearing 8 under
Pressing sleeve 9 is connected with pressing plate 10 of forging a knife, and when so that forging a knife, the piston 7 for oil cylinder of forging a knife can will be forged a knife under pressing plate 10 by lower pressing sleeve 9
It moves, when broaching tool, the piston 7 for oil cylinder of the forging a knife pressing plate 10 that can will be forged a knife by rolling bearing 8 moves up increasing broach force；When broaching tool, under
It is clearance fit between pressing sleeve 9 and pressing plate 10 of forging a knife；It forges a knife between the piston 7 and main shaft central spindle 3 of oil cylinder as clearance fit；Rolling bearing
It is clearance fit between 8 inner ring inner holes and main shaft central spindle 3；It is provided with a perforative hole on 3 cylindrical surface of main shaft central spindle and allows pressing plate of forging a knife
10 therefrom filled, and the movement that can freely forge a knife up and down；It forges a knife and is equipped with one between pressing plate 10 and main shaft central spindle 3 across broaching tool bar 11
Compression spring 12 push pressing plate 10 of forging a knife to push up always, one end of broaching tool bar 11 is fixedly connected with pressing plate 10 of forging a knife, broaching tool
The other end of bar 11 is equipped with a broaching tool device 13.Above-mentioned spindle drum can also be collar bush, above-mentioned rolling bearing preferred angle
Contact bearing.Rear end is equipped with a motor 14 between main shaft central spindle 3 and spindle drum 2, and the shell of motor 14 is mounted on spindle drum 2
On, the motor shaft of motor 14 with main shaft central spindle 3 is coaxial is linked together synchronous rotation.
The beneficial effects of the present invention are: compact-sized, the entire length of main axle unit is short；In addition it forges a knife when broaching tool oil cylinder
The piston pressing plate that can will be forged a knife by rolling bearing moves up increasing broach force, which can effectively share the pulling force power of compression spring
Square, allows the more small-sized simplification of compression spring；Since the torque of compression spring reduces, main shaft bearing is rushed when forging a knife
It hits and naturally also just reduces, to extend the service life of main shaft bearing；Secondly the piston of oil cylinder of forging a knife when broaching tool can pass through rolling
The bearing pressing plate that will forge a knife moves up, so that main shaft bearing has a strand upward pulling force always, to increase the rigidity of main shaft when processing.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of first embodiment of the invention.
Fig. 2 is the structural schematic diagram of second embodiment of the invention.
In figure: 1 is main shaft forward flange, and 2 be spindle drum, and 3 be main shaft central spindle, and 4 be forward spindle bearing group, and 5 be rear spindle shaft
Hold group, 6 be the cylinder body of oil cylinder of forging a knife, and 7 be the piston of oil cylinder of forging a knife, and 8 be rolling bearing, and 9 be lower pressing sleeve, and 10 be pressing plate of forging a knife,
11 be broaching tool bar, and 12 be compression spring, and 13 be broaching tool device, and 14 be motor, and 15 be convex block, and 16 be detection switch, and 17 be transition tooth
Set, 18 be compression spring group.
Specific embodiment
First embodiment shown in referring to Fig.1, it mainly by spindle drum, spindle motor, main shaft central spindle, main shaft forward flange,
Main shaft bearing, oil cylinder of forging a knife, compression spring, broaching tool device, broaching tool bar composition, it is characterised in that: main shaft forward flange 1 is mounted on main shaft
2 front ends of seat, main shaft central spindle 3 are coaxially mounted to main shaft forward flange 1 and main shaft by forward spindle bearing group 4 and rear main shaft bearing group 5
In seat 2；Rear end is equipped with a motor 14 between main shaft central spindle 3 and spindle drum 2, and the shell of motor 14 is mounted on spindle drum 2, electricity
The motor shaft of machine 14 with main shaft central spindle 3 is coaxial is linked together synchronous rotation.
Oil cylinder of forging a knife is hollow structure, and using to axle center T-type structure, which is expressed as cylinder body middle part and is cylinder body 6
Fixed stopper, both ends are coaxial hollow structure；Cylinder body 6 is fixedly mounted on master by 2 hole of spindle drum and step and main shaft forward flange 1
Disengaging oilhole A and B are provided on axle bed 2, in the middle part of cylinder body.
Forge a knife oil cylinder piston 7 using the structure of two pistons coaxial disjunctor up and down, the upper end of the piston 7 for oil cylinder of forging a knife adds
The Kong Yuke of the mountable rolling bearing 8 of work and the joining inner screw tooth hole of lower pressing sleeve 9, lower pressing sleeve 9 be provided with can gap installation forge a knife pressure
The hole of plate 10 and can be with the joining outer tooth of 7 inner screw tooth hole of piston for oil cylinder of forging a knife；Radial direction and axis between lower pressing sleeve 9 and pressing plate 10 of forging a knife
To being clearance fit.
When forging a knife, the piston 7 for oil cylinder of the forging a knife pressing plate 10 that can will be forged a knife by lower pressing sleeve 9 is moved down, when broaching tool, oil cylinder of forging a knife
The pressing plate 10 that can will be forged a knife by rolling bearing 8 of piston 7 moves up increasing broach force；Forge a knife oil cylinder piston 7 and main shaft central spindle 3 between be
Clearance fit；It is clearance fit between 8 inner ring inner hole of rolling bearing and main shaft central spindle 3；One is provided on 3 cylindrical surface of main shaft central spindle to pass through
The hole worn allows pressing plate 10 of forging a knife therefrom to fill, and the movement that can freely forge a knife up and down；It forges a knife and is equipped between pressing plate 10 and main shaft central spindle 3
One compression spring 12 for passing through broaching tool bar 11 pushes pressing plate 10 of forging a knife to push up always, one end of broaching tool bar 11 and pressing plate of forging a knife
10 are fixedly connected, and the other end of broaching tool bar 11 is equipped with a broaching tool device 13.
For convenience of tool changing air blowing, and make structure more densification, it is characterised in that: the radial direction for pressing plate 10 of forging a knife is provided with one
The inner-diameter end of radial venthole, the radial direction venthole is communicated with broaching tool bar centre bore；Pressing plate 10 of forging a knife at outer diameter end is also provided with one
A one end is communicated with lower 9 air inlet of pressing sleeve, the axial venthole that the other end is communicated with the hole that the radial direction for pressing plate 10 of forging a knife is opened；Broaching tool
It is provided with a hole among bar 11, the forge a knife radial venthole opened of radial direction of pressing plate 10 of one end communicates, the other end and broaching tool device 13
It communicates；The radial direction of lower pressing sleeve 9 is provided with the tooth hole being connected with extraneous high-pressure air pipe, and lower pressing sleeve 9 can be made by being axially provided with one
Radial direction is provided with the hole that the axial venthole of tooth hole that one is connected with external high pressure tracheae and pressing plate 10 of forging a knife mutually is ventilated.Work
When, make lower pressing sleeve 9 corresponding with the hole for pressing plate of forging a knife by main shaft orientation, then make lower pressing sleeve 9 by the piston 7 for oil cylinder of forging a knife
Pressing plate 10 fits with forging a knife, so that external high pressure gas be made to pass through lower pressing sleeve 9, pressing plate 10 of forging a knife, broaching tool bar 11, broaching tool device 13
Reach spindle taper hole end.
It forges a knife for convenience position detection, the present invention installs a convex block also on the piston 7 for oil cylinder of forging a knife or lower pressing sleeve 9
15, and two detection switch 16 are installed on the spindle drum 2 of corresponding convex block 15.
To the impact of main spindle front bearing 4 when forging a knife to be further reduced, the present invention pacifies in the oil inlet pipe for oil cylinder of forging a knife
Oil circuit is buffered equipped with one 0.1 to 0.5 liter of small volume diaphragm accumulator.
Referring to second embodiment shown in Fig. 2, it and first embodiment are main difference is that oil cylinder of forging a knife is multiple using spring
Position formula single channel hollow oil cylinder, in addition it with spindle motor is installed by synchronous pulley and main shaft parallel side-by-side.
Spring return type single channel hollow oil cylinder in above-mentioned second embodiment is it is characterized by: its cylinder body 6 uses inverted L shape knot
Structure, cylinder body 6 are fixedly mounted on spindle drum 2 by 2 hole of spindle drum and step and main shaft forward flange 1, and oil is provided in the middle part of cylinder body
Hole E.Forge a knife oil cylinder piston 7 using L-type structure, the upper end processing of the piston 7 for oil cylinder of forging a knife can be connected with transition facing 17
Outer tooth；Lower pressing sleeve 9 be provided with can gap installation forge a knife the hole of pressing plate 10 and the hole of mountable rolling bearing 8, and being also machined with can
With the joining interior tooth of transition facing 17；It is radially and axially clearance fit between lower pressing sleeve 9 and pressing plate 10 of forging a knife.It forges a knife oil cylinder
Piston 7 lower end and main shaft forward flange 1 between compression spring group 18 is installed.
Claims (9)
1. a kind of close-coupled machining center main axle unit, it mainly by spindle drum, spindle motor, main shaft central spindle, main shaft forward flange,
Main shaft bearing, oil cylinder of forging a knife, compression spring, broaching tool device, broaching tool bar composition, it is characterised in that: main shaft forward flange is mounted on main shaft
Seat front end, main shaft central spindle are coaxially mounted in main shaft forward flange and spindle drum by forward spindle bearing group and rear main shaft bearing group；
Oil cylinder of forging a knife is hollow structure, and cylinder body is fixedly mounted on spindle drum, the piston of oil cylinder of forging a knife by a rolling bearing and
Lower pressing sleeve is connected with pressing plate of forging a knife, and when so that forging a knife, the piston for oil cylinder of the forging a knife pressing plate that can will be forged a knife by lower pressing sleeve is moved down, and draws
When knife, the piston for oil cylinder of the forging a knife pressing plate that can will be forged a knife by rolling bearing moves up increasing broach force；When broaching tool, lower pressing sleeve with forge a knife
It is clearance fit between pressing plate；A perforative hole is provided on main shaft central spindle cylindrical surface allows pressing plate of forging a knife therefrom to fill, and can be free
Upper and lower movement of forging a knife；Forge a knife be equipped between pressing plate and main shaft central spindle one pass through broaching tool bar compression spring push pressure of forging a knife always
Plate pushes up, and one end of broaching tool bar is fixedly connected with pressing plate of forging a knife, and the other end of broaching tool bar is equipped with a broaching tool device.
2. close-coupled machining center main axle unit according to claim 1, it is characterised in that: the main shaft central spindle and master
Rear end is equipped with a motor between axle bed, and the shell of motor is mounted on spindle drum, and the motor shaft and main shaft central spindle of motor are coaxial
It is linked together synchronous rotation.
3. close-coupled machining center main axle unit according to claim 1, it is characterised in that: the cylinder of the oil cylinder of forging a knife
Body is used to axle center T-type structure, which is expressed as in the middle part of cylinder body to fix stopper, and both ends are coaxial hollow structure；Cylinder body
It is fixedly mounted on spindle drum by main shaft bore and step and main shaft forward flange, disengaging oilhole A and B is provided in the middle part of cylinder body.
4. close-coupled machining center main axle unit according to claim 1, it is characterised in that: the work of the oil cylinder of forging a knife
Plug using two pistons coaxial disjunctor up and down structure, the upper end of the piston for oil cylinder of forging a knife process the hole of mountable rolling bearing with
Can be provided with the lower joining inner screw tooth hole of pressing sleeve, lower pressing sleeve can gap installation forge a knife pressing plate hole and can be with the piston for oil cylinder of forging a knife
The joining outer tooth of inner screw tooth hole；It is radially and axially clearance fit between lower pressing sleeve and pressing plate of forging a knife.
5. close-coupled machining center main axle unit according to claim 1, it is characterised in that: the diameter of the pressing plate of forging a knife
To a radial venthole is provided with, the inner-diameter end of the radial direction venthole is communicated with broaching tool bar centre bore；Pressing plate forge a knife at outer diameter end
It is also provided with an one end and is communicated with set air inlet is pushed, the axial ventilation that the other end is communicated with the hole that the radial direction for pressing plate of forging a knife is opened
Hole；It is provided with a hole among broaching tool bar, the forge a knife radial venthole opened of radial direction of pressing plate of one end communicates, the other end and broaching tool device
It communicates；The radial direction of lower pressing sleeve is provided with the tooth hole being connected with extraneous high-pressure air pipe, is axially provided with the diameter that can make lower pressing sleeve
The hole mutually ventilated to the axial venthole for being provided with tooth hole that one is connected with external high pressure tracheae and pressing plate of forging a knife.
6. close-coupled machining center main axle unit according to claim 1, it is characterised in that: the work of the oil cylinder of forging a knife
Plug or pushing put on one convex block of installation, and install two detection switch on the spindle drum of corresponding convex block.
7. close-coupled machining center main axle unit according to claim 1, it is characterised in that: the oil cylinder of forging a knife into
One 0.1 to 0.5 liter of small volume diaphragm accumulator is installed in oil pipe line.
8. close-coupled machining center main axle unit according to claim 1, it is characterised in that: the oil cylinder use of forging a knife
Spring return type single channel hollow oil cylinder.
9. close-coupled machining center main axle unit according to claim 7, it is characterised in that: the spring return type list
Hollow oil cylinder its cylinder body in road uses inverted L shape structure, and the cylinder body of spring return type single channel hollow oil cylinder passes through main shaft bore and step
It is fixedly mounted on spindle drum with main shaft forward flange, is provided with oilhole E in the middle part of the cylinder body of spring return type single channel hollow oil cylinder；Bullet
The piston of spring homing position type single channel hollow oil cylinder uses L-type structure, and the upper end of the piston of spring return type single channel hollow oil cylinder processes
It can be with the joining outer tooth of transition facing；Lower pressing sleeve be provided with can gap installation forge a knife pressing plate hole and mountable rolling bearing
Hole, and being also machined with can be with the joining interior tooth of transition facing；Radial direction and axial direction are that gap is matched between lower pressing sleeve and pressing plate of forging a knife
It closes；Compression spring group is installed between the lower end and main shaft forward flange of the piston of spring return type single channel hollow oil cylinder.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910008363 | 2019-01-04 | ||
| CN2019100083632 | 2019-01-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209565489U true CN209565489U (en) | 2019-11-01 |
Family
ID=66486262
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920293804.3U Expired - Fee Related CN209565489U (en) | 2019-01-04 | 2019-03-08 | A kind of close-coupled machining center main axle unit |
| CN201910175323.7A Pending CN109773220A (en) | 2019-01-04 | 2019-03-08 | A kind of close-coupled machining center main axle unit |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910175323.7A Pending CN109773220A (en) | 2019-01-04 | 2019-03-08 | A kind of close-coupled machining center main axle unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN209565489U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109773220A (en) * | 2019-01-04 | 2019-05-21 | 林志贺 | A kind of close-coupled machining center main axle unit |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3671180D1 (en) * | 1985-08-19 | 1990-06-21 | Tornos Sa Fabrique De Machine | CLAMPING DEVICE FOR A WORKPIECE OR A MATERIAL ROD. |
| CN104493604B (en) * | 2014-12-16 | 2016-08-24 | 宁波海天精工股份有限公司 | A kind of double-piston main shaft is forged a knife and is unloaded power cylinder |
| CN204975362U (en) * | 2015-08-18 | 2016-01-20 | 林志贺 | Formula machining center main shaft unit of forging a knife floats |
| CN209565489U (en) * | 2019-01-04 | 2019-11-01 | 林志贺 | A kind of close-coupled machining center main axle unit |
-
2019
- 2019-03-08 CN CN201920293804.3U patent/CN209565489U/en not_active Expired - Fee Related
- 2019-03-08 CN CN201910175323.7A patent/CN109773220A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109773220A (en) * | 2019-01-04 | 2019-05-21 | 林志贺 | A kind of close-coupled machining center main axle unit |
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| Publication number | Publication date |
|---|---|
| CN109773220A (en) | 2019-05-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191101 |