CN207495087U - A kind of cutting actuating unit - Google Patents
A kind of cutting actuating unit Download PDFInfo
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- CN207495087U CN207495087U CN201721368708.8U CN201721368708U CN207495087U CN 207495087 U CN207495087 U CN 207495087U CN 201721368708 U CN201721368708 U CN 201721368708U CN 207495087 U CN207495087 U CN 207495087U
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- main shaft
- collar bush
- actuating unit
- head box
- spline
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Abstract
This practicality discloses a kind of cutting actuating unit, including head box, spindle motor and feeding motor, the collar bush and main shaft that can axially slide are equipped in head box, main shaft is equipped with main axle rotation device and main shaft proceeding equipment, the dynamical system of main shaft rotation and axis feeding is separated, by main shaft, collar bush, splined member, main shaft synchronous pulley, hollow ball screw, leading screw fixed mounting and the axis coincidence for feeding synchronous pulley, all parts in head box is made to realize coaxial-type assembling, the axis of rotation of i.e. above-mentioned part or the center line of mounting hole overlap on the same axis.The advantages of coaxial line is fed is that the tilting moment for making to act on main shaft reduces to minimum, so as to which the frictional resistance for making collar bush and spindle box inner hole wall declines, improves stock-removing efficiency.
Description
Technical field
This practicality is related to cutting actuating unit more particularly to a kind of cutting actuating unit using hollow ball-screw.
Background technology
Cutting actuating unit can carry out the processing in various holes, such as drilling, tapping, fraising, bore hole.Actuating unit carries out
The characteristics of hole machined is cutter rotation and axial power feed, and cutter rotation is the main shaft rotation band by Cutting tool installation manner on main shaft
Cutter also rotates together with.At present, the power feed of main shaft axial direction includes various ways：The mode of machinery；It is added on collar bush
Axial feed structure, such as rack-and-pinion, lead thick stick propulsion；Hydraulic pressure or pneumatic mode；Hydraulic cylinder or cylinder are arranged symmetrically in master
The connecting plate that the piston thick stick drive of axis both sides, two oil cylinders or cylinder is connected with collar bush, makes collar bush generate axial movement, completes
Feed acts.Also have and the piston thick stick of hydraulic cylinder and main shaft are made into same axis, make main shaft axial feed.But above-mentioned power feed
There are certain defects for mode：Mechanical feed mode generally can generate additional moment to main shaft, and collar bush is caused to install hole wall with it
Frictional force, there is effect of attrition machining accuracy, and hydraulic pressure or pneumatic feeding mode, although generation will not be added to main shaft
Tilting moment, but hydraulic pressure or the pneumatic amount of feeding are difficult to control, and are only used for the drilling in hole.
Utility model content
For overcome the deficiencies in the prior art, this practical purpose is to provide a kind of cutting actuating unit.
This practical purpose adopts the following technical scheme that realization：
A kind of cutting actuating unit, including head box, spindle motor and feeding motor, being equipped in the head box can be axial
The collar bush and main shaft of sliding, the main shaft are equipped with main axle rotation device and main shaft proceeding equipment, the main axle rotation device
Including splined member and main shaft synchronous pulley, the main shaft proceeding equipment includes hollow ball screw, is arranged on hollow ball wire
Feed screw nut, leading screw fixed mounting and feeding synchronous pulley on thick stick, the collar bush, the main shaft, the splined member
It is overlapped with the axis of the main shaft synchronous pulley；The collar bush, hollow ball screw, leading screw fixed mounting are synchronous with feeding
The axis of belt wheel overlaps, and the spindle motor passes through spindle motor belt wheel and main shaft synchronous belt and the main shaft synchronous belt pulley transmission
It connects and drives main axis, the feeding motor is by feeding electrical machine belt pulley and feeding synchronous belt and the feeding synchronous pulley
It is sequentially connected and hollow ball screw is driven to rotate, the feed screw nut is contacted with the collar bush end face, on the collar bush
Equipped with the guiding mechanism for preventing collar bush from rotating.
Further, the head box is nested with each other with one heart by a large cylinder and a small cylinder, outside the small cylinder
Surface and the installation stationary plane that the shoulder face of large cylinder is the head box, the small cylinder outer surface are equipped with head block.
Further, the front-end of spindle makes it be revolved around own axes by installing bearing and being arranged in the collar bush
Turn, the middle part of the main shaft passes through the through-hole of the hollow ball screw, and the tail end of the main shaft is pierced by the through-hole and spline
Component is connected, and splined member includes the first spline housing being set on main shaft and fixes the first of the first spline housing for installing
Spline block set, the main shaft synchronous pulley are arranged on the first spline housing and pass through gland and be locked with the first spline housing.
Further, the splined member further includes the second spline housing and the second spline for installing hollow ball screw
Block set, described hollow ball screw one end are equipped with leading screw nut, second are arranged in a manner that one end is fixed by leading screw nut
In spline housing, the second spline block set and the head box Joint.
Further, the head box be equipped with for be fixedly mounted feeding motor feeding motor mounting plate, it is described into
It is set on second spline housing to synchronous pulley.
Further, first spline housing is mounted on by clutch shaft bearing in the first spline block set, second spline
Set is mounted on by second bearing in the second spline block set.
Further, the head box is equipped with the spindle motor installing plate for installing spindle motor, the main shaft electricity
Machine installing plate is arranged in the first spline block set and passes through fixed screw and the first spline block set Joint.
Further, ball nut is equipped in the collar bush, the hollow ball screw passes through described with the main shaft
Ball nut simultaneously forms coaxial line assembling.
Further, collar bush is stretched out outside the tapering of cutter for installing on the main shaft, the tapering is bored by Mohs
Degree is connected with cutter.
Compared with prior art, the advantageous effect of this practicality is：The dynamical system of main shaft rotation and axis feeding is separated,
Main shaft passes through hollow ball screw and collar bush, and hollow ball screw is contacted with collar bush end face, and leading screw rotation and collar bush are not
Rotation can both generate flexible, feeding motor drives leading screw rotation, and collar bush is not rotated, by feeding the rotation of belt wheel, made
Leading screw rotates and collar bush and main shaft is made to generate into tool backlash movement.Spindle motor drives main axis, completes cutting or drilling etc.
The processing in hole.
Simultaneously by main shaft, collar bush, splined member, main shaft synchronous pulley, hollow ball screw, leading screw fixed mounting with
And the axis of feeding synchronous pulley overlaps, and all parts in head box is made to realize coaxial-type assembling, i.e., above-mentioned part returns
The center line of shaft axis or mounting hole overlaps on the same axis.The advantages of coaxial line is fed is to make to act on main shaft
Tilting moment reduces to minimum, so as to which the frictional resistance for making collar bush and spindle box inner hole wall declines, improves stock-removing efficiency.
Description of the drawings
Fig. 1 is the structure diagram of the cutting actuating unit of this practical embodiment；
Fig. 2 is the diagrammatic cross-section of the A-A in Fig. 1；
Fig. 3 is the side structure schematic diagram of the cutting actuating unit of this practical embodiment.
In figure：10th, head box；11st, large cylinder；12nd, small cylinder；13rd, head block；20th, spindle motor；21st, main shaft electricity
Machine belt wheel；22nd, main shaft synchronous belt；23rd, spindle motor installing plate；24th, fixed screw；30th, motor is fed；31st, motor band is fed
Wheel；32nd, synchronous belt is fed；33rd, motor mounting plate is fed；40th, collar bush；41st, guiding mechanism；42nd, ball nut；50th, main shaft；
The 51st, bearing is installed；52nd, tapering；60th, main axle rotation device；61st, splined member；611st, the first spline housing；612nd, the first spline housing
Seat；613rd, clutch shaft bearing；614th, the second spline housing；615th, the second spline block set；616th, second bearing；62nd, main shaft synchronous pulley；
63rd, gland；70th, main shaft proceeding equipment；71st, hollow ball screw；711st, through-hole；72nd, feed screw nut；73rd, leading screw is fixedly mounted
Seat；74th, synchronous pulley is fed.
Specific embodiment
In the following, with reference to attached drawing and specific embodiment, this practicality is described further, it should be noted that not
Under the premise of conflicting, new implementation can be formed between various embodiments described below or between each technical characteristic in any combination
Example.
A kind of cutting actuating unit, including head box 10, spindle motor 20 and feeding motor 30, being equipped in head box 10 can
The collar bush 40 and main shaft 50 axially slid, main shaft are equipped with main axle rotation device 60 and main shaft proceeding equipment 70, main shaft rotation
Device 60 includes splined member 61 and main shaft synchronous pulley 62, and main shaft proceeding equipment 70 includes hollow ball screw 71, is arranged on
Feed screw nut 72, leading screw fixed mounting 73 in hollow ball screw 71 and feeding synchronous pulley 74, collar bush 40, main shaft,
The axis of splined member 61 and main shaft synchronous pulley 62 overlaps；Collar bush 40, hollow ball screw 71, leading screw fixed mounting and
The axis for feeding synchronous pulley 74 overlaps, and spindle motor passes through spindle motor belt wheel 21 and main shaft synchronous belt 22 and main shaft synchronous belt
Wheel 62 is sequentially connected and drives main axis, and feeding motor is synchronous with feeding by feeding electrical machine belt pulley 31 and feeding synchronous belt 32
Belt wheel 74 is sequentially connected and hollow ball screw 71 is driven to rotate, and feed screw nut is contacted with 40 end face of collar bush, on collar bush 40
Equipped with the guiding mechanism 41 for preventing collar bush 40 from rotating.The dynamical system of main shaft rotation and axis feeding is separated, main shaft passes through
Hollow ball screw 71 and collar bush 40, hollow ball screw 71 are contacted with 40 end face of collar bush, leading screw rotation and collar bush 40
Do not rotate can both generate flexible, feeding motor drives leading screw rotation, and collar bush 40 does not rotate, by feeding turning for belt wheel
It is dynamic, leading screw is made to rotate and collar bush 40 and main shaft is made to generate into tool backlash movement.Spindle motor drive main axis, complete cutting or
The processing in the holes such as drilling.
Main shaft, collar bush 40, splined member 61, main shaft synchronous pulley 62, hollow ball screw 71, leading screw are fixed simultaneously
Mounting base and the axis coincidence for feeding synchronous pulley 74, make all parts in head box 10 realize coaxial-types assembling, i.e.,
The axis of rotation of above-mentioned part or the center line of mounting hole overlap on the same axis.The advantages of coaxial line is fed is to make work
It reduces to minimum with the tilting moment on main shaft, so as to decline collar bush 40 and the frictional resistance of spindle box inner hole wall, improves
Stock-removing efficiency.
Feeding motor drives hollow ball screw 71 to rotate, what hollow ball screw 71 was connect using one end with feed screw nut
Fixed form, feed screw nut are contacted with 40 end face of collar bush, and the guiding for preventing collar bush 40 from rotating is also provided on collar bush 40
Mechanism 41, the guiding mechanism 41 are to maintain collar bush 40 and can only be axially moved, it is impossible to have rotation to generate, 71 turns of hollow ball screw
When dynamic, feed screw nut 72 is moved forward and backward and collar bush 40 is pushed to move, and collar bush 40 is made to be generated with main shaft into tool backlash movement.
60 structure of main axle rotation device is as follows：Front-end of spindle makes it around certainly by installing bearing 51 and being arranged in collar bush 40
Body axis rotate, and the middle part of main shaft passes through the through-hole 711 of hollow ball screw 71, and the tail end of main shaft is pierced by through-hole 711 and spline
Component 61 is connected, and splined member 61 includes the first spline housing 611 being set on main shaft and fixes the first spline for installing
First spline block set 612 of set, main shaft synchronous pulley 62 are arranged on the first spline housing and pass through 63 and first spline housing of gland
It is locked.Spindle motor drives main shaft synchronous pulley 62 to rotate by spindle motor belt wheel 21 and synchronous belt, so as to drive master
Shaft rotation is moved.
The mounting structure of hollow ball screw 71 is as follows：Splined member 61 further includes to install hollow ball screw 71
Second spline housing 614 and the second spline block set 615,71 one end of hollow ball screw be equipped with leading screw nut, by leading screw nut with
The fixed mode in one end is arranged in the second spline housing, the second spline block set 615 and 10 Joint of head box.
Head box 10 is nested with each other with one heart by a large cylinder 11 and a small cylinder 12, the outer surface of small cylinder 12 and great circle
The shoulder face of cylinder 11 is the installation stationary plane of head box 10, and small 12 outer surface of cylinder is equipped with head block 13, the shoulder of large cylinder 11
Face is flange face, can be fixed on head box 10 on horizontal, vertical or with angle bearing surface.It is equipped with and is used in head box 10
The big axis hole of the second spline housing is fixed in installation, and big axis hole is arranged on 11 rear end of large cylinder；10 front end of head box is equipped with to install
The small axis hole of collar bush 40, small axis hole are arranged on small 12 front end of cylinder, and head box 10 is equipped with that feeding motor is fixedly mounted
Feeding motor mounting plate 33, feeding synchronous pulley 74 be set on the second spline housing.Head box 10 is equipped with to install master
The spindle motor installing plate 23 of spindle motor, spindle motor installing plate 23 are arranged in the first spline block set 612 and pass through fixed spiral shell
Silk 24 and 612 Joint of the first spline block set.Spindle motor is fixed on spindle motor installing plate 23 on head box 10, feeding electricity
Machine is fixed on feeding motor mounting plate 33 etc. on head box 10, and the axial cross section area of head box 10 is compact, two motors
Installation site it is more flexible, can be on coaxial line, axis is stretched face and is installed in opposite directions, can also relative to main-shaft axis be in 90Cloth
It puts or 180It is arranged symmetrically.Motor is equipped with various ways, generally by sealing of motor spindle end face install in a manner of based on.
First spline housing is mounted on by clutch shaft bearing 613 in the first spline block set 612, and the second spline housing passes through the second axis
616 are held to be mounted in the second spline block set 615.
Ball nut 42 is equipped in collar bush 40, hollow ball screw 71 passes through ball nut 42 with main shaft and formed coaxial
It is traditional thread binding to match.
Collar bush 40 is stretched out outside the tapering 52 of cutter for installing on main shaft, tapering 52 is connected by Morse's taper with cutter
It connects.For stationary fit to be accurately positioned, the main shaft of mechanism, using frictional force, is transmitted Morse's taper using long cone Morse's taper
Torque, at the same it is easy to disassemble.
The cutting actuating unit is compared with using the actuating unit of other drive mechanisms, the hollow ball screw because built in
71, making actuating unit, depth of cut is accurate in feed.If main shaft rotation, main shaft feed are driven with servo motor, this is dynamic
Force mechanisms can complete the machinings such as drilling, bore hole, tapping, and appearance is integrally succinct, proportioned, the features such as being easily installed.
The above embodiment is only the preferred embodiment of this practicality, it is impossible to the range of this practicality protection is limited with this,
The variation and replacement for any unsubstantiality that those skilled in the art is done on the basis of this practicality belong to this practicality institute
Claimed range.
Claims (9)
1. a kind of cutting actuating unit, which is characterized in that including head box, spindle motor and motor is fed, in the head box
Equipped with the collar bush and main shaft that can axially slide, the main shaft is equipped with main axle rotation device and main shaft proceeding equipment, the master
Shaft rotating device includes splined member and main shaft synchronous pulley, and the main shaft proceeding equipment includes hollow ball screw, is arranged on
Feed screw nut, leading screw fixed mounting and feeding synchronous pulley in hollow ball screw, the collar bush, the main shaft, institute
The axis for stating splined member and the main shaft synchronous pulley overlaps；The collar bush, hollow ball screw, leading screw fixed mounting
It is overlapped with the axis of feeding synchronous pulley, the spindle motor is same by spindle motor belt wheel and main shaft synchronous belt and the main shaft
Step belt wheel transmission connect and drives main axis, it is described feeding motor by feed electrical machine belt pulley and feed synchronous belt and it is described into
It is connected to synchronous belt pulley transmission and hollow ball screw is driven to rotate, the feed screw nut is contacted with the collar bush end face, institute
It states collar bush and is equipped with the guiding mechanism for preventing collar bush from rotating.
2. cutting actuating unit as described in claim 1, which is characterized in that the head box is by a large cylinder and a small cylinder
It is nested with each other with one heart, the outer surface of the small cylinder and the installation stationary plane that the shoulder face of large cylinder is the head box are described
Small cylinder outer surface is equipped with head block.
3. cutting actuating unit as described in claim 1, which is characterized in that the front-end of spindle is arranged on by installing bearing
It is made to be rotated around own axes in the collar bush, the middle part of the main shaft passes through the through-hole of the hollow ball screw, described
The tail end of main shaft is pierced by the through-hole and is connected with splined member, splined member include being set in the first spline housing on main shaft and
For installing the first spline block set for fixing the first spline housing, the main shaft synchronous pulley is arranged on the first spline housing and passes through
Gland is locked with the first spline housing.
4. cutting actuating unit as claimed in claim 3, which is characterized in that the splined member further includes hollow for installing
Second spline housing of ball-screw and the second spline block set, the hollow ball screw are fixed by the leading screw nut with one end
Mode be arranged in the second spline housing, the second spline block set and the head box Joint.
5. as claimed in claim 4 cutting actuating unit, which is characterized in that the head box be equipped with for be fixedly mounted into
To the feeding motor mounting plate of motor, the feeding synchronous pulley is set on second spline housing.
6. cutting actuating unit as claimed in claim 4, which is characterized in that first spline housing is installed by clutch shaft bearing
In the first spline block set, second spline housing is mounted on by second bearing in the second spline block set.
7. cutting actuating unit as claimed in claim 3, which is characterized in that the head box is equipped with to install main shaft electricity
The spindle motor installing plate of machine, the spindle motor installing plate are arranged in the first spline block set and pass through fixed screw and first
Spline block set Joint.
8. cutting actuating unit as described in claim 1, which is characterized in that ball nut is equipped in the collar bush, it is described
Hollow ball screw passes through the ball nut with the main shaft and forms coaxial line assembling.
9. cutting actuating unit as described in claim 1, which is characterized in that be used on the main shaft outside the tapering for installing cutter
Collar bush is stretched out, the tapering is connected by Morse's taper with cutter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721368708.8U CN207495087U (en) | 2017-10-23 | 2017-10-23 | A kind of cutting actuating unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721368708.8U CN207495087U (en) | 2017-10-23 | 2017-10-23 | A kind of cutting actuating unit |
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| Publication Number | Publication Date |
|---|---|
| CN207495087U true CN207495087U (en) | 2018-06-15 |
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ID=62501362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721368708.8U Active CN207495087U (en) | 2017-10-23 | 2017-10-23 | A kind of cutting actuating unit |
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| CN (1) | CN207495087U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109967797A (en) * | 2019-04-18 | 2019-07-05 | 荣基工业科技（江苏）有限公司 | A kind of numerical control key slot center machine |
| CN111715920A (en) * | 2019-03-20 | 2020-09-29 | 株式会社斯巴鲁 | Tool driving device, tool feeding mechanism for tool rotating device, and hole machining method |
| WO2023000648A1 (en) * | 2021-07-20 | 2023-01-26 | 北京天泽电力集团有限公司 | Automatic feeding device |
| CN117161678A (en) * | 2023-11-03 | 2023-12-05 | 中山迈雷特数控技术有限公司 | Power head mechanism for precisely correcting center hole of shaft part |
-
2017
- 2017-10-23 CN CN201721368708.8U patent/CN207495087U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111715920A (en) * | 2019-03-20 | 2020-09-29 | 株式会社斯巴鲁 | Tool driving device, tool feeding mechanism for tool rotating device, and hole machining method |
| CN109967797A (en) * | 2019-04-18 | 2019-07-05 | 荣基工业科技（江苏）有限公司 | A kind of numerical control key slot center machine |
| WO2023000648A1 (en) * | 2021-07-20 | 2023-01-26 | 北京天泽电力集团有限公司 | Automatic feeding device |
| CN117161678A (en) * | 2023-11-03 | 2023-12-05 | 中山迈雷特数控技术有限公司 | Power head mechanism for precisely correcting center hole of shaft part |
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