CN207386577U - A kind of high speed artificial tooth engraving machine special pneumatic tool changing electrical spindle - Google Patents
A kind of high speed artificial tooth engraving machine special pneumatic tool changing electrical spindle Download PDFInfo
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- CN207386577U CN207386577U CN201721064836.3U CN201721064836U CN207386577U CN 207386577 U CN207386577 U CN 207386577U CN 201721064836 U CN201721064836 U CN 201721064836U CN 207386577 U CN207386577 U CN 207386577U
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- tool changing
- cutter
- sliding sleeve
- high speed
- pull rod
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Abstract
The utility model discloses a kind of high speed artificial tooth engraving machine special pneumatic tool changing electrical spindles, including body, positioned at the in vivo rotating shaft assembly of the machine, stator module, pre-tightening mechanism and the fore bearing positioned at the rotating shaft assembly both ends and rear bearing, further include the cutter-exchange mechanism in the rotating shaft assembly, tool changing position-limit mechanism, cylinder assembly, sealing structure and coolant mechanism, the cutter-exchange mechanism includes cutter, pull rod, positioned at the pull rod close to the pulling claw of cutter one end, positioned at the pull rod away from cutter one end socket pressing sleeve and be installed on dished spring assembly of the pressing sleeve between pull rod；The tool changing position-limit mechanism includes sliding sleeve, described sliding sleeve one end is slidably connected with the piston, it moves and moves backward with the piston, the sliding sleeve other end is shunk, the pressing sleeve is located on the inside of the sliding sleeve serrated end, under normal condition, there are gap between the sliding sleeve and the pressing sleeve, the utility model has the characteristics that miniaturization and bearing service life are long.
Description
Technical field
The utility model is related to a kind of high speed artificial tooth engraving machine special pneumatic tool changing electrical spindles, belong to electro spindle technology neck
Domain.
Background technology
Electro spindle is a kind of important tool of production in modern manufacture field, and electro spindle is selected by more and more industries
With, for full market continuous demand, it is necessary to increase to minimize main shaft research, in addition existing automatic tool changing electrical spindle changing
During knife, tool changing axial force predominant intermolecular forces are all concentrated on high-speed bearing, and the service life of bearing is greatly reduced, it is necessary to
It makes improvements.
The content of the invention
Technical problem to be solved in the utility model is to provide one kind main shaft under high-speed, high precision processing environment and realizes
Miniaturization and the high speed artificial tooth engraving machine special pneumatic tool changing electrical spindle of bearing service life length.
In order to solve the above technical problems, the technical solution adopted in the utility model is：
A kind of high speed artificial tooth engraving machine special pneumatic tool changing electrical spindle, including body, positioned at the in vivo rotation axis of the machine
Component, stator module, pre-tightening mechanism and the fore bearing positioned at the rotating shaft assembly both ends and rear bearing, further include positioned at institute
Cutter-exchange mechanism, tool changing position-limit mechanism, cylinder assembly, sealing structure and the coolant mechanism in rotating shaft assembly are stated, it is described to change
Cutter mechanism is including cutter, pull rod, positioned at the pull rod close to the pulling claw of cutter one end, positioned at the one end of the pull rod away from cutter
The pressing sleeve of socket and the dished spring assembly being installed between pressing sleeve and pull rod；
The cylinder assembly is located at the body rear end, including cylinder block, pistons stops, piston, piston limit block, rear cover
And resetting spring, it is covered after described equipped with knife air inlet TI is unloaded, lived to described unload described in knife air inlet TI injection air push
Plug Forward makes the pulling claw move forward and voluntarily opens progress tool changing, TI mouthfuls of releases is controlled by external control device, described multiple
Under the action of the spring of position, the piston is moved to separate tool orientation makes the pulling claw return clamp-on tool；
The tool changing position-limit mechanism includes sliding sleeve, and described sliding sleeve one end is slidably connected with the piston, is moved with the piston
Dynamic reverse movement, the sliding sleeve other end are shunk, and the pressing sleeve is located on the inside of the sliding sleeve serrated end, described under normal condition
There are gaps between sliding sleeve and the pressing sleeve.
Be additionally provided in the cylinder block sealing gland entrance TS, the sealing gland entrance TS and the body, end cap, front end gland with
And connection forms compressed air channel between dust cover, compressed air generates micro-positive pressure air in the dust cover, described micro-
Positive pressure air is flowed out by the gap between dust cover and the rotating shaft assembly, the shape around the rotating shaft assembly axis front end
Into air film, extraneous moisture, impurity is avoided to enter in the rotating shaft assembly；Between the dust cover and the front end gland also
Equipped with labyrinth seal lid.
Cooling liquid inlet WA1 and cooling liquid outlet WA2, the cylinder block and the body are additionally provided in the cylinder block
The circulation canal connected with the cooling liquid inlet WA1 and the cooling liquid outlet WA2 is formed in casing；Coolant is through institute
It states cooling liquid inlet WA1 and enters coolant circulation passage, the stator module, the fore bearing and the rear bearing are carried out
Cooling is finally discharged from the cooling liquid outlet WA2.
The circulation canal is double helix passage.
The circulation canal is equipped with for clear miscellaneous manhole.
The coolant is water or the oil of low viscosity.
The advantageous effect that the utility model is reached：
1st, main shaft global design is compact-sized, optimizes the overall structure of main shaft, reduces the volume of main shaft, maintaining
It is convenient；
2nd, set using tool changing position-limit mechanism, in tool changing, piston advances forward is moved after driving sliding sleeve by reaction force,
Sliding sleeve is made to be contacted in advance with mounted on the pressing sleeve of rotation shaft rear end, so that tool changing power is acted on pressing sleeve, so as to avoid every time
During pneumatic tool changing caused by bearing impact force, improve service life of bearing；
3rd, it is combined, is avoided because contact seal cannot be high-speed rotating using contactless hermetic seal and labyrinth sealing
So as to obtain higher rotary speed, better seal effect is obtained with this for defect.
Description of the drawings
Fig. 1 is example structure schematic diagram；
Fig. 2 is embodiment right side structure schematic diagram；
Fig. 3 is the appearance schematic diagram of embodiment；
Fig. 4 is that embodiment is in the structure diagram for unloading knife-like state；
Fig. 5 is the cross-sectional view of second angle of embodiment；
Reference sign：1st, rear cover 2, pistons stops 3, piston 4, limited block 5, sliding sleeve 6, pressing sleeve 7, cylinder block
8th, rear bearing 9, precompressed mechanism 10, pull rod 11, stator component 12, rotation axis 13, body 14, fore bearing 15, end cap
16th, front end gland 17, sealing cover 18, dust cover 19, pulling claw 20, cutter 21, dished spring assembly 22, resetting spring.
Specific embodiment
The utility model is further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating this
The technical solution of utility model, and cannot the scope of protection of the utility model be limited with this.
As shown in Figure 1 to Figure 3, a kind of high speed artificial tooth engraving machine special pneumatic tool changing electrical spindle, including body 13, is located at
Rotating shaft assembly 12, stator module 11, pre-tightening mechanism 9 in the body 13 and positioned at 12 both ends of rotating shaft assembly
Fore bearing 14 and rear bearing 8, the installation of fore bearing 14 are installed on bearing 8 after in end cap 15 in body 13, and portion's driving mechanism is defeated
The high frequency three phase mains gone out supplies electricity to electro spindle by built-in motor lead (U, V, W), and drive shaft runs at high speed, and can transport
The highest that the maximum speed turned depends on the shafting that fore bearing 14, rear bearing 8, rotating shaft assembly 12, precompressed mechanism 9 are formed turns
Speed.It in the present invention, is optimized by the structure to main shaft, main shaft has reached that low speed torque is big, high speed 60000rpm's
Steady operation rotating speed maintains the leading position in the automatic tool changing electrical spindle currently on the market；
In addition to aforementioned body structure, further include cutter-exchange mechanism in the rotating shaft assembly 12, tool changing position-limit mechanism,
Cylinder assembly, sealing structure and coolant mechanism, the cutter-exchange mechanism include cutter 20, pull rod 10, positioned at the pull rod 10
The pulling claw 19 of close cutter one end, the pressing sleeve 6 being socketed in positioned at the described one end of pull rod 10 away from cutter on the pull rod 10
And be installed between pressing sleeve and pull rod for the dished spring assembly 21 that automatically resets；
The cylinder assembly is located at 13 rear end of body, including cylinder block 7, pistons stops 2, piston 3, piston limit block
4 and rear cover 1, the rear cover 1 is equipped with and unloads knife air inlet TI, to the compressed air for unloading knife air inlet TI injections 0.6MPa
The Forward of piston 3 is promoted to make, and disc spring group is compressed and the pulling claw 19 moves forward and voluntarily opens and carries out tool changing, as shown in figure 4,
Replace cutter after, external control system control unload knife air inlet TI releases, under the action of resetting spring 22, the piston 3 to
Make the 19 return clamp-on tool of pulling claw away from tool orientation movement；
The tool changing position-limit mechanism includes sliding sleeve 5, and described 5 one end of sliding sleeve is slidably connected with the piston 3, with the piston
3 movement reverse movements, 5 other end of sliding sleeve are shunk, and the pressing sleeve 6 is located on the inside of 5 serrated end of sliding sleeve, normal condition
Under, there are gap between the sliding sleeve 5 and the pressing sleeve 6, when carrying out tool changing, piston 3 moves forward, and moves after driving sliding sleeve 5, presses at this time
Set 6 is first contacted with sliding sleeve 5, avoids directly and bearing touch, tool changing impact force being transferred on pressing sleeve 6, improves the service life of bearing；
Sealing gland entrance TS, the sealing gland entrance TS and the body 13, end cap 15, front end are additionally provided in the cylinder block 7
Connection forms compressed air channel between gland 16 and dust cover 18, and compressed air generates micro-positive pressure in the dust cover 18
Air, the micro-positive pressure air is flowed out by the gap between dust cover 18 and the rotating shaft assembly 12, in the rotation axis
Component forms air film around 12 axis front end, and extraneous moisture, impurity is avoided to enter in the rotating shaft assembly 12；The dust cover
Labyrinth seal lid 17 is additionally provided between 18 and the front end gland 16, electro spindle carries out contactless airtight using compressed air
Envelope and labyrinth sealing be combined, avoid because contact seal cannot high-speed rotating defect, so as to obtain higher rotation
Speed obtains better seal effect with this；
Be additionally provided with cooling liquid inlet WA1 and cooling liquid outlet WA2 in the cylinder block 7, the cylinder block 7 with it is described
The double helix passage connected with the cooling liquid inlet WA1 and the cooling liquid outlet WA2 is formed in 13 casing of body；
Coolant enters coolant double helix passage through the cooling liquid inlet WA1, to the stator module 11, the fore bearing 14 with
And the rear bearing 8 is cooled down, and is finally discharged from the cooling liquid outlet WA2, the circulation canal is equipped with for clear miscellaneous
Manhole, so as in main spindle overhauling clear up coolant in precipitated impurities, with keep the unimpeded of cooling water channel and cooling imitate
Fruit, extends the service life of electro spindle, and the coolant can be water or the oil of low viscosity.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model technical principle is not departed from, several improvement and deformation can also be made, these change
The scope of protection of the utility model is also should be regarded as into deformation.
Claims (6)
1. a kind of high speed artificial tooth engraving machine special pneumatic tool changing electrical spindle, including body (13), in the body (13)
Rotating shaft assembly (12), stator module (11), pre-tightening mechanism (9) and the fore bearing positioned at the rotating shaft assembly (12) both ends
(14) and rear bearing (8), it is characterized in that, cutter-exchange mechanism, tool changing position restrainer in the rotating shaft assembly (12) are further included
Structure, cylinder assembly, sealing structure and coolant mechanism, the cutter-exchange mechanism include cutter (20), pull rod (10), positioned at described
Pull rod (10) close to cutter one end pulling claw (19), positioned at the pull rod (10) away from cutter one end be socketed pressing sleeve (6) with
And it is installed on the dished spring assembly (21) between pressing sleeve (6) and pull rod (10)；
The cylinder assembly is located at the body (13) rear end, including cylinder block (7), pistons stops (2), piston (3), piston limit
Position block (4), rear cover (1) and resetting spring (22), the rear cover (1) are equipped with and unload knife air inlet TI, and knife air inlet is unloaded to described
Piston (3) Forward described in mouth TI injection air push makes the pulling claw (19) move forward and voluntarily opens progress tool changing, passes through outside
Control device controls TI mouthfuls of releases, and under the action of the resetting spring (22), the piston (3) moves to away from tool orientation
Make the pulling claw (19) return clamp-on tool；
The tool changing position-limit mechanism includes sliding sleeve (5), and described sliding sleeve (5) one end is slidably connected with the piston (3), with the work
(3) mobile reverse movement is filled in, sliding sleeve (5) other end is shunk, and the pressing sleeve (6) is located on the inside of the sliding sleeve (5) serrated end,
Under normal condition, there are gaps between the sliding sleeve (5) and the pressing sleeve (6).
2. a kind of high speed artificial tooth engraving machine special pneumatic tool changing electrical spindle according to claim 1, it is characterized in that, the gas
Sealing gland entrance TS, the sealing gland entrance TS and the body (13), end cap (15), front end gland (16) are additionally provided on cylinder body (7)
And connection forms compressed air channel between dust cover (18), it is empty that compressed air generates micro-positive pressure in the dust cover (18)
Gas, the micro-positive pressure air is flowed out by the gap between dust cover (18) and the rotating shaft assembly (12), in the rotation
Air film is formed around shaft assembly (12) axis front end, avoids extraneous moisture, impurity interior into the rotating shaft assembly (12)；It is described
Labyrinth seal lid (17) is additionally provided between dust cover (18) and the front end gland (16).
3. a kind of high speed artificial tooth engraving machine special pneumatic tool changing electrical spindle according to claim 1, it is characterized in that, the gas
Cooling liquid inlet WA1 and cooling liquid outlet WA2, the cylinder block (7) and the body (13) casing are additionally provided on cylinder body (7)
Inside it is formed with the circulation canal connected with the cooling liquid inlet WA1 and the cooling liquid outlet WA2；Coolant is through described cold
But liquid import WA1 enters coolant circulation passage, to the stator module (11), the fore bearing (14) and the rear bearing
(8) cooled down, finally discharged from the cooling liquid outlet WA2.
4. a kind of high speed artificial tooth engraving machine special pneumatic tool changing electrical spindle according to claim 3, it is characterized in that, it is described to follow
Ring passage is double helix passage.
5. a kind of high speed artificial tooth engraving machine special pneumatic tool changing electrical spindle according to claim 3, it is characterized in that, it is described to follow
Ring passage is equipped with for clear miscellaneous manhole.
6. a kind of high speed artificial tooth engraving machine special pneumatic tool changing electrical spindle according to claim 3, it is characterized in that, it is described cold
But liquid is water or the oil of low viscosity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721064836.3U CN207386577U (en) | 2017-08-24 | 2017-08-24 | A kind of high speed artificial tooth engraving machine special pneumatic tool changing electrical spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721064836.3U CN207386577U (en) | 2017-08-24 | 2017-08-24 | A kind of high speed artificial tooth engraving machine special pneumatic tool changing electrical spindle |
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| CN207386577U true CN207386577U (en) | 2018-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721064836.3U Active CN207386577U (en) | 2017-08-24 | 2017-08-24 | A kind of high speed artificial tooth engraving machine special pneumatic tool changing electrical spindle |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108655437A (en) * | 2018-06-18 | 2018-10-16 | 宁波锋行自动化科技有限公司 | A kind of air pressure diaphragm spring collet main shaft |
| CN109514318A (en) * | 2018-11-12 | 2019-03-26 | 深圳九福科技股份有限公司 | Automatic tool changer spindle motor with radiator structure |
| CN110303809A (en) * | 2019-08-02 | 2019-10-08 | 常州工程职业技术学院 | A kind of graver of automatically replaceable different size cutter heads |
-
2017
- 2017-08-24 CN CN201721064836.3U patent/CN207386577U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108655437A (en) * | 2018-06-18 | 2018-10-16 | 宁波锋行自动化科技有限公司 | A kind of air pressure diaphragm spring collet main shaft |
| CN109514318A (en) * | 2018-11-12 | 2019-03-26 | 深圳九福科技股份有限公司 | Automatic tool changer spindle motor with radiator structure |
| CN109514318B (en) * | 2018-11-12 | 2024-05-14 | 深圳九福科技股份有限公司 | Automatic tool changing spindle motor with heat radiation structure |
| CN110303809A (en) * | 2019-08-02 | 2019-10-08 | 常州工程职业技术学院 | A kind of graver of automatically replaceable different size cutter heads |
| CN110303809B (en) * | 2019-08-02 | 2024-06-04 | 常州工程职业技术学院 | Carving knife capable of automatically replacing heads with different sizes |
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