CN109434141A - A kind of rotor assembly and permanent magnet synchronization motor spindle of electro spindle - Google Patents
A kind of rotor assembly and permanent magnet synchronization motor spindle of electro spindle Download PDFInfo
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- CN109434141A CN109434141A CN201811440351.9A CN201811440351A CN109434141A CN 109434141 A CN109434141 A CN 109434141A CN 201811440351 A CN201811440351 A CN 201811440351A CN 109434141 A CN109434141 A CN 109434141A
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- pull rod
- rotor core
- hole
- side opening
- rotor assembly
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- 229910000831 Steel Inorganic materials 0.000 claims description 21
- 239000010959 steel Substances 0.000 claims description 21
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 20
- 238000007664 blowing Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 1
- 239000003921 oil Substances 0.000 description 56
- 239000002826 coolant Substances 0.000 description 18
- 239000007788 liquid Substances 0.000 description 17
- 238000001816 cooling Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 239000000428 dust Substances 0.000 description 8
- 238000007789 sealing Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000007667 floating Methods 0.000 description 4
- 239000010720 hydraulic oil Substances 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 240000007594 Oryza sativa Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 2
- 235000011613 Pinus brutia Nutrition 0.000 description 2
- 241000018646 Pinus brutia Species 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/70—Stationary or movable members for carrying working-spindles for attachment of tools or work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/10—Arrangements for cooling or lubricating tools or work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/12—Arrangements for cooling or lubricating parts of the machine
- B23Q11/126—Arrangements for cooling or lubricating parts of the machine for cooling only
- B23Q11/127—Arrangements for cooling or lubricating parts of the machine for cooling only for cooling motors or spindles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/155—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
Abstract
The invention discloses a kind of rotor assembly of electro spindle, it includes hollow rotor core, hollow pull rod is equipped in rotor core, pull rod front end is equipped with circumferentially distributed multiple side openings, side opening is connected with the inner passage of pull rod, circumferentially distributed multiple L shapes hole is offered in the side wall of rotor core, L shape hole includes transverse holes and longitudinal hole, transverse holes and side opening correspond, longitudinal hole extends to the front end surface of rotor core, the front end of rotor core is for installing knife handle, the inner passage of pull rod is for accessing compressed air, when pull rod moves forward, side opening is aligned with transverse holes, to enable inner passage and the L shape hole of pull rod be interconnected, compressed air in pull rod successively passes through side opening, transverse holes and longitudinal hole blow to the end face of knife handle.The present invention can be improved dust-proof, the anti-scum performance of cutter, helps to improve tool precision, cutter life can be improved.
Description
Technical field
The present invention relates to electro spindle more particularly to the rotor assembly and permanent magnet synchronization motor spindle of a kind of electro spindle.
Background technique
In use, the rotor assembly interface end face of electro spindle is single plane, work to the electro spindle of the prior art
When, due to machine tool is dust-proof, anti-scum performance be not it is very outstanding, there is the case where pollution knife handle interface surface, main shaft caused to press from both sides
Knife accuracy decline, and the built-in motor of existing electro spindle is mostly asynchronous machine, the cast-aluminum rotor built in asynchronous machine due to
Aluminum process defect itself, it is different to be easy to produce aluminum strip compactness, causes to be easy to produce shake when motor operation, physics correlation ginseng
Number stability is poor, causes orientation trouble rigidly weak and running speed low precision, is main shaft when low speed is cut using big dise knife again, speed
Degree shake, can not further promote the surface smoothness, precision and cutter life of processing efficiency and workpiece.
Summary of the invention
The technical problem to be solved in the present invention is that in view of the deficiencies of the prior art, a kind of cutter that can be improved is provided
Dust-proof, anti-scum performance helps to improve the rotor assembly and permanent magnetism of tool precision, the electro spindle that cutter life can be improved
Synchronous electric spindle.
In order to solve the above technical problems, the present invention adopts the following technical scheme that.
A kind of rotor assembly of electro spindle comprising have hollow rotor core, hollow drawing is equipped in the rotor core
Bar, the pull rod front end are equipped with circumferentially distributed multiple side openings, and the side opening is connected with the inner passage of the pull rod, institute
It states and offers circumferentially distributed multiple L shapes hole in the side wall of rotor core, L shape hole includes transverse holes and longitudinal hole, institute
It states transverse holes and the side opening corresponds, the longitudinal hole extends to the front end surface of the rotor core, the rotor core
Front end is for installing knife handle, and the inner passage of the pull rod is for accessing compressed air, before the compressed air is by the pull rod
End blows to the rear end of the knife handle, then by blowing out outward around the knife handle, when the pull rod moves backward, the side opening
Be staggered with the transverse holes, with enable the pull rod inner passage and L shape hole junction close, when the pull rod forward
When mobile, the side opening is aligned with the transverse holes, to enable inner passage and the L shape hole of the pull rod be interconnected, institute
It states the compressed air in pull rod and successively passes through the end face that side opening, transverse holes and longitudinal hole blow to the knife handle.
Preferably, front end connecting rod and strut are successively arranged between the pull rod and knife handle from back to front, the front end connects
Extension bar and strut are in hollow form, and the rear end of the front end connecting rod is fixedly connected with the pull rod, the front end connecting rod
Front end is inserted in the strut and the two is fixedly connected, side wall of the side opening through the front end connecting rod.
Preferably, the front end surface of the rotor core is formed with multiple boss, circumferential direction of multiple boss along the rotor core
It is uniformly distributed, the boss and L shape hole correspond, and the front opening of the longitudinal hole is located at the table of the boss
Face.
Preferably, iron core sleeve, forward horizontal stand ring and rear balance ring are arranged on the rotor core, the forward horizontal stand ring is put down with rear
Weighing apparatus ring is fixedly connected with the rotor core respectively, and the iron core sleeve is located between the forward horizontal stand ring and rear balance ring.
Preferably, 4 arc grooves, circumferential direction of 4 arc grooves along the iron core sleeve are offered in the side wall of the iron core sleeve
It is uniformly distributed, the two sides of each arc groove offer oblique slot respectively, and the arc groove and oblique slot are through the iron core
The rear and front end of set, for the arc groove close to the lateral wall of the iron core sleeve, two oblique slots are in that " eight " shape is distributed in the arc
The two sides of shape slot, and permanent magnet is inserted in the arc groove and the oblique slot.
Preferably, rectangular channel is offered between two adjacent oblique slots.
A kind of permanent magnet synchronization motor spindle comprising have steel cylinder, stator module, the stator module are fixed in the steel cylinder
Inside it is equipped with rotor assembly.
In the rotor assembly of electro spindle disclosed by the invention, the rear end of the pull rod is for accessing compressed air, when electricity is main
When axis pine knife, the pull rod pushes forward knife handle, at this point, side opening is aligned with the transverse holes, at this time the pull rod, side opening,
Transverse holes and longitudinal hole are sequentially communicated, so that air-flow can blow to the knife handle end face, and then the dirts such as dust for removing knife handle end face
Object is contaminated, when electro spindle broaching tool, the pull rod pulls back knife handle, at this point, the side opening and the transverse holes are staggered, it is described
Channel between pull rod and L shape hole is closed.Based on the above process, the present invention substantially increases dust-proof, the anti-scum performance of cutter,
Raising tool precision is not only facilitated, and cutting-tool's used life can be improved.
Detailed description of the invention
Fig. 1 is the cross-sectional view of electro spindle of the present invention；
Fig. 2 is the structure chart of connecting rod；
Fig. 3 is the perspective view of sliding sleeve；
Fig. 4 is the cross-sectional view of sliding sleeve；
Fig. 5 is the perspective view of U-shaped sealing ring；
Fig. 6 is the cross-sectional view of U-shaped sealing ring；
Fig. 7 is the structure chart of inner cool tube；
Fig. 8 is the partial sectional view of electro spindle front end；
Fig. 9 is the structure chart of dust ring；
Figure 10 is the structure chart of front-end bearing pedestal；
Figure 11 is the structure chart of fore bearing housing；
Figure 12 is the structure chart of dustproof cover；
The structure chart of Figure 13 stator module；
Figure 14 is the side view of stator module；
Figure 15 is the side view of rotor assembly；
Figure 16 is the cross-sectional view of rotor assembly；
Figure 17 is the enlarged drawing of part A in Figure 16；
Figure 18 is the front end face structure chart of rotor core；
Figure 19 is the exploded view of rotor assembly；
Figure 20 is the perspective view of iron core sleeve；
Figure 21 is the end face structure figure of iron core sleeve；
Figure 22 is the positional diagram of rectangular channel and permanent magnet；
Figure 23 is the partial sectional view of electro spindle rear end；
Figure 24 is the perspective view of oil cylinder bottom plate；
Figure 25 is the cross-sectional view of oil cylinder bottom plate；
Figure 26 is the perspective view of oil cylinder；
Figure 27 is the cross-sectional view of oil cylinder；
Figure 28 is the structure chart of piston and piston rod；
Figure 29 is the structure chart of oil cylinder cover.
Specific embodiment
The present invention is described in more detail with reference to the accompanying drawings and examples.
Embodiment one
The present embodiment proposes a kind of rotor assembly of electro spindle, in conjunction with shown in Fig. 1, Figure 15 to Figure 22 comprising in having
Empty rotor core 50, is equipped with hollow pull rod 6 in the rotor core 50, and 6 front end of pull rod is equipped with circumferentially distributed more
A side opening 66, the side opening 66 are connected with the inner passage of the pull rod 6, offer in the side wall of the rotor core 50 along week
To multiple L shapes hole 51 of distribution, L shape hole 51 includes transverse holes 52 and longitudinal hole 53, the transverse holes 52 and the side
Hole 66 corresponds, and the longitudinal hole 53 extends to the front end surface of the rotor core 50, and the front end of the rotor core 50 is used for
Knife handle 7 is installed, for accessing compressed air, which is blowed to by the front end of the pull rod 6 for the inner passage of the pull rod 6
The rear end of the knife handle 7, then by being blown out outward around the knife handle 7, when the pull rod 6 moves backward, the side opening 66
It is staggered with the transverse holes 52, to enable the junction closing of the inner passage and L shape hole 51 of the pull rod 6, when the drawing
When bar 6 moves forward, the side opening 66 is aligned with the transverse holes 52, to enable the inner passage and L shape hole of the pull rod 6
51 are interconnected, and the compressed air in the pull rod 6 successively passes through side opening 66, transverse holes 52 and longitudinal hole 53 and blows to the knife handle
7 end face.
In the rotor assembly 5 of above-mentioned electro spindle, the rear end of the pull rod 6 is for accessing compressed air, when electro spindle pine knife
When, the pull rod 6 pushes forward knife handle, at this point, side opening 66 is aligned with the transverse holes 52, the pull rod 6, side opening at this time
66, transverse holes 52 and longitudinal hole 53 are sequentially communicated, so that air-flow can blow to 7 end face of knife handle, and then remove 7 end face of knife handle
The pollutants such as dust, when electro spindle broaching tool, the pull rod 6 pulls back knife handle, at this point, by the side opening 66 and the transverse direction
Hole 52 is staggered, and the channel between the pull rod 6 and L shape hole 51 is closed.Based on the above process, the present invention substantially increases cutter
Dust-proof, anti-scum performance, not only facilitates raising tool precision, and cutting-tool's used life can be improved.
About the optimum position of side opening 66, further, before being successively arranged from back to front between the pull rod 6 and knife handle 7
Connecting rod 60 and strut 61 are held, the front end connecting rod 60 and strut 61 are in hollow form, the rear end of the front end connecting rod 60
It is fixedly connected with the pull rod 6, the front end of the front end connecting rod 60 is inserted in the strut 61 and the two is fixedly connected, institute
State side opening 66 through the front end connecting rod 60 side wall.
The front end surface of the rotor core 50 is formed with multiple boss 54, multiple 54 edges of boss as a preferred method,
The circumferential direction of the rotor core 50 is uniformly distributed, and the boss 54 is corresponded with L shape hole 51, and before the longitudinal hole 53
End opening is located at the surface of the boss 54.The effect of above-mentioned boss 54 is, it is ensured that the front end of the rotor core 50 and knife
The position between certain gap, especially two boss 54 is formed between the end face of handle 7, and dirt can be blown away being not provided with stomata
Object is contaminated, so that the better effect of dedusting, impurity removing.
About the specific structure of rotor core 50, in the present embodiment, iron core sleeve 55, forward horizontal stand are arranged on the rotor core 50
Ring 56 and rear balance ring 57, the forward horizontal stand ring 56 and rear balance ring 57 are fixedly connected with the rotor core 50 respectively, the iron
Core retainer plate 55 is located between the forward horizontal stand ring 56 and rear balance ring 57.
4 arc grooves, 550,4 arc grooves 550 are offered in the side wall of the iron core sleeve 55 as a preferred method,
Circumferential direction along the iron core sleeve 55 is uniformly distributed, and the two sides of each arc groove 550 offer oblique slot 551, the arc respectively
Slot 550 and oblique slot 551 are through the rear and front end of the iron core sleeve 55, and the arc groove 550 is close to the iron core sleeve 55
Lateral wall, two oblique slots 551 are distributed in the two sides of the arc groove 550 in " eight " shape, and the arc groove 550 and described
Permanent magnet 58 is inserted in oblique slot 551.Further, rectangular channel 552 is offered between two adjacent oblique slots 551.
In above structures, 2 pairs of north and south magnetic poles are formed after the permanent magnet assembly, are seen as domes from a magnetic pole,
After being uniformly distributed, " W " shape structure of median rise is showed, this structure can realize the maximum of magnetic pole area in a limited space
Change, guarantee that the magnetic flux of the outside spoke of magnetic pole reaches maximization, secondly, the rectangular channel among the magnetic pole of north and south is by north and south magnetic pole magnetic induction
Line closed circuit separates, and then forms magnetic bridge, also, the distance between arc groove outer arc and inner arc are bigger than the width of rectangular channel,
Outer arc circumference circle and outer arc to the distance between iron core sleeve outer circle ratio are 10:1, in same magnetic pole, outer arc circumference circle with
The ratio of the sum of the length of two sides rectangular channel is 0.9:1 to waiting, through the above structure the rotor of motor between 1.15:1
In the case of gas length obtain close to sine wave air-gap induction Density Distribution, thus reach motor power consumption is low, torque pulsation is small,
Unitary current torque exports big effect, so that main shaft rotates, more stable, motor rigidity is more preferable, spindle processing surface smoothness
It is higher.
The present embodiment also discloses a kind of permanent magnet synchronization motor spindle comprising has steel cylinder 1, it is fixed to be fixed in the steel cylinder 1
Sub-component 4 is equipped with the rotor assembly 5 of above structure in the stator module 4.
Embodiment two
The present embodiment proposes a kind of built-in permanent magnet synchronization motor spindle, in conjunction with shown in Fig. 1 to Figure 12 comprising have steel cylinder
1, the front end of the steel cylinder 1 is equipped with front axle bearing assembly 2, and the rear end of the steel cylinder 1 is equipped with rear axle bearing assembly 3, consolidates in the steel cylinder 1
Surely there is stator module 4, hollow rotor assembly 5, the rear and front end point of the rotor assembly 5 are equipped in the stator module 4
Not Chuan Guo the front axle bearing assembly 2 and rear axle bearing assembly 3, be equipped with hollow pull rod 6, the rotor in the rotor assembly 5
For installing hollow knife handle 7, the front end of the pull rod 6 is connected to the inner passage of the knife handle 7 and the two for the front end of component 5
It is interconnected, the rear end of the steel cylinder 1 is fixed with back-cover 8, and the rear end of the rotor assembly 5 extends in the back-cover 8, described
The rear end of back-cover 8 is equipped with cylinder component 9, and the cylinder component 9 includes hollow piston rod 90, and the rear end of the pull rod 6 is worn
The piston rod 90 is crossed, the rear end of the cylinder component 9 is equipped with rotary joint seat 10, is equipped with rotation in the rotary joint seat 10
Adapter 11 offers in the rotary joint 11 behind the gas-liquid hole 12 for descending both ends thereon, the rotary joint 11
End is exposed to except rotary joint seat 10, and the front end of the rotary joint 11 is connected with the rear end of the pull rod 6, and described
Gas-liquid hole 12 is connected with the inner passage of the pull rod 6, when loading compressed air or coolant liquid in the gas-liquid hole 12,
The compressed air or coolant liquid are transmitted in knife handle 7 via the inner passage of the pull rod 6.
In above-mentioned built-in permanent magnet synchronization motor spindle, the rotary joint 11, pull rod 6 and knife handle 7 from top to bottom successively connect
Logical, which can access compressed air and coolant liquid, can be the cutter on knife handle 7 when it accesses compressed air
Offer unloads knife air-flow and blows the air-flow of dust open, when it accesses coolant liquid, can use coolant liquid and directly carries out to cutter
Cooling, for can only carrying out cooling mode from outside compared to the prior art, the present invention can directly be carried out cutter from inside
It is cooling, to improve cooling effect, extend cutter life, processing efficiency is not only improved, but also can be improved machining accuracy, section
Save processing cost.
In practical application, the entrance of the rotary joint 11 can connect gas source or coolant pump simultaneously, when work, only need
Alternatively input compressed air or coolant liquid.
About the connection relationship between the rotary joint 11 and pull rod 6, in the present embodiment, the cylinder component 9 and institute
It states and is fixed with rear cover 13 between rotary joint seat 10, be equipped with hollow connecting rod 14, the both ends of the connecting rod 14 in the rear cover 13
It is connected to the rotary joint 11 and pull rod 6, and the gas-liquid hole 12, the inner passage of the connecting rod 14 and the pull rod
6 inner passage is sequentially communicated.
During broaching tool, the piston rod 90 moves backward electro spindle under the driving of cylinder component 9, so that the work
The front end of stopper rod 90 and the pull rod 6 disengage, with to avoid piston rod 90 as the pull rod 6 rotates, at this time by the drawing
The dished spring assembly being arranged on bar 6 drives the pull rod 6 to pull back, so that the cutter on knife handle 7 be tensed.
Further, the front end of the connecting rod 14 is plugged in the rear end of the pull rod 6, and the rear end of the connecting rod 14 is formed with
Octagonal plug division 140, the front end of the rotary joint 11 offer octagonal jack, and the octagonal plug division 140 plugs
In in the octagonal jack and the two be fitted close.Above-mentioned connected structure not only facilitates dismounting, and can guarantee to link
Rotation.
About the front end of electro spindle, in the present embodiment, it is successively arranged front end from back to front between the pull rod 6 and knife handle 7
Connecting rod 60, strut 61 and inner cool tube 62, the front end connecting rod 60, strut 61 and inner cool tube 62 are in hollow form, before described
The rear end of end connecting rod 60 is fixedly connected with the pull rod 6, the front end of the front end connecting rod 60 and the rear end point of inner cool tube 62
Be not inserted in the strut 61, the front end connecting rod 60 is fixedly connected with the strut 61, the inner cool tube 62 with it is described
Strut 61 is slidably connected, and the inner passage of the inner cool tube 62 and the inner passage of the knife handle 7 are interconnected, when the drawing
When bar 6 drives the front end connecting rod 60 and strut 61 to move forward, the front end connecting rod 60 is connected to the inner cool tube 62
Rear end and the two be connected.
In order to achieve a fixed connection, the front end connecting rod 60 is fixedly arranged at the front end with hollow base rice screw 63, the base
Rice screw 63 and the inner wall of the strut 61 are screwed.
It is fixed with sliding sleeve 64 and U-shaped sealing ring 65 in the front opening of the strut 61 as a preferred method, it is described
U-shaped sealing ring 65 is located at the rear end of the sliding sleeve 64, and the U-shaped sealing ring 65 is connected to the sliding sleeve 64 and the strut 61
Inner wall between, the inner cool tube 62 sequentially passes through the sliding sleeve 64 and the U-shaped sealing ring 65.
Further, the front end of the sliding sleeve 64 offers the first conical mouths 640, the front end of the U-shaped sealing ring 65
Offer the second conical mouths 650.Above-mentioned two conical mouths facilitate quickly and accurately grafting inner cool tube 62.
In the present embodiment, the front axle bearing assembly 2 includes fore bearing housing 20, front-end bearing pedestal 21 and fore bearing 22, institute
It states fore bearing housing 20 to be fixedly connected with the front end of the steel cylinder 1, the front-end bearing pedestal 21 is located at the fore bearing housing 20
Inside, the fore bearing 22 are located between the front-end bearing pedestal 21 and the rotor assembly 5.
Further, the front end face of the fore bearing housing 20 is fixed with dust ring 23, and the front end of the rotor assembly 5 is solid
Surely there is dustproof cover 24, the dust ring 23 is surrounded on the dustproof cover 24 and is equipped with gap therebetween.
In practical application, the front end of the dustproof cover 24 is formed with stage portion 240, and the stage portion 240 extends out to
The front of the dust ring 23, the dust ring 23 are equipped with displacement sensor 25, the induction end court of the displacement sensor 25
To the stage portion 240.Under the action of displacement sensor 25, help to stretch the heat of dustproof cover 24 and rotor assembly 5
Contracting state is detected, in order to carry out flexible thermal compensation processing to electro spindle.
Embodiment three
Currently, electro spindle needs built-in motor stator module, it is typically directly assemblied in main shaft steel cylinder, by cold inside steel cylinder
But the cooling motor stator component in channel or stator module are externally provided with the water-cooled jacket of spiral cooling circuit, and cooling capacity is insufficient, the former is S
Type, which erects direction cooling circuit, makes main shaft steel cylinder that temperature gradient in the circumferential direction be presented, and stator front and back end (i.e. axial) is presented in the latter
Biggish temperature gradient, outer dimension limitation in the case where, screw type cooling circuit can not promoted coolant rate, it is cold
But rate can not be promoted further.
In this regard, the present embodiment proposes a kind of stator module 4 of permanent magnet synchronization motor spindle, Fig. 1, Figure 13 and figure are please referred to
14 comprising have stator core 40, the outside of the stator core 40 is equipped with coolant jacket 42, and the lateral wall of the coolant jacket 42 is opened
Annular groove 43 equipped with multiple annulars is connected between two neighboring annular groove 43 by straight trough 44, and two neighboring straight trough 44 is handed over
Mistake is set to the left and right sides of the stator core 40, by the cooperation of the straight trough 44 and the annular groove 43, enables described straight
The coolant liquid that slot 44 introduces is flowed to the two sides of the annular groove 43.
In said stator component 4, coolant liquid is flowed into the annular groove 43 of 40 one end of stator core by the steel cylinder of electro spindle, then is led to
It crosses straight trough 44 and is divided into a positive and a negative and flow through next annular groove 43, because multiple straight troughs 44 are divided into the left and right of stator core 40
Two sides, and two neighboring straight trough 44 is staggered, so that coolant liquid flows successively through each annular groove 43 as usual, most
The annular groove that Zhongdao reaches positioned at end flows back to the steel cylinder of electro spindle again, is related to based on above-mentioned, and the present invention, to design, is made by double fluid
It obtains coolant rate to increase, position temperature corresponding to annular groove 43 is more uniform, so that inlet and outlet temperature gradient
Smaller, film-cooled heat is big, and then improves the cooling capacity of stator module.
About the specific structure of stator module 4, in the present embodiment, the inner wall of the stator core 40 is embedded with stator winding
41。
Further, the coolant jacket 42 is steel bushing.
The coolant jacket 42 is sheathed on the outside of the stator core 40, and the coolant jacket as a preferred method,
Heat-conducting medium 45 is filled between 42 and the stator core 40.
Further, the heat-conducting medium 45 is epoxy resin.
On this basis, the present embodiment also discloses a kind of permanent magnet synchronization motor spindle, please refers to Fig. 1, Figure 13 and Figure 14,
Include steel cylinder 1, above-described stator module 4 is fixed in the steel cylinder 1.
Wherein, it is offered in the side wall of the steel cylinder 1 into liquid channel and liquid outlet channel, is located at the coolant jacket about 42 two
The annular groove 43 at end be respectively communicated in it is described enter liquid channel and liquid outlet channel.
Example IV
During the work time, with the driving effect of oil cylinder, the pull rod in main shaft can generate the loose knife of advance, retreat electro spindle
The movement of broaching tool, during loose knife, especially direct-connected BT40 mechanical main shaft, hydraulic cutter-removing mechanism in main shaft knife loosening,
Loose knife stress is loaded directly on main shaft bearing, and in such cases, main shaft bearing life will receive influence, is caused under main shaft precision
Drop.
In this regard, this implementation proposes a kind of floating knife-loosing mechanism of permanent magnet synchronization motor spindle, in conjunction with Fig. 1, Figure 23 to Figure 29
It is shown comprising to have back-cover 8, hollow rotor core 50, cylinder component 9, oil nozzle 80 and gas nozzle, the rear end position of the rotor core 50
In in the back-cover 8, the rear end of the rotor core 50 is fixed with position-arresting disk 500, and the position-arresting disk 500 is to the rotor core 50
Outside protrusion, pull rod 6 is equipped in the rotor core 50, the cylinder component 9 includes the oil cylinder bottom plate of piston 91, annular
92, oil cylinder 93, oil cylinder set 94 and oil cylinder cover 95, the oil cylinder set 94 are fixedly connected with the back-cover 8, and the oil cylinder 93 is located at institute
It states in back-cover 8, the oil cylinder 93 is slidably connected with the back-cover 8 and seals therebetween, and the oil cylinder bottom plate 92 is surrounded on institute
Rotor core 50, and the oil cylinder bottom plate 92 is fixedly connected with the oil cylinder 93, the inner ring end of the oil cylinder bottom plate 92 is recessed inwardly
And it is formed with interior step ring 920, the front end face of the interior step ring 920 and the position-arresting disk 500 is oppositely arranged and therebetween
There are gap, the front end of the oil cylinder 93 is formed with bend inwards interior along 930, the interior front end face along 930 and the limit
The rear end face of position disk 500 is oppositely arranged and exists therebetween gap, and the piston 91 is located in the oil cylinder 93 and the two is sliding
It is dynamic to connect, it is formed with piston rod 90 at the center of the piston 91, the piston rod 90 sequentially passes through interior along 930 and position-arresting disk
500, and the front end of the piston rod 90 is connected to the rear end of the pull rod 6, the oil cylinder cover 95 is covered on the oil cylinder 93
Rear end and the two is fixedly connected, the oil nozzle 80 are connected with the cavity of 91 rear side of piston, the gas nozzle and the piston
The cavity of 91 front sides is connected.
When the oil nozzle 80 accesses hydraulic oil, the piston 91, piston rod are driven by the pressure that the hydraulic oil applies
90 forward slips arrive at 6 end face of pull rod, and by the disc spring on rod assembly, moving backward cylinder component, (i.e. floating cylinder is former
Reason) until the interior step ring 920 of the oil cylinder bottom plate 92 is pushed against in the front end face of the position-arresting disk 500, limit cylinder component
Continue rearward displacement, forms a positive and a negative active force, i.e. 90 forward force of piston rod and oil cylinder bottom inside cylinder component at this time
Plate rearward force pushes main shaft pull rod 6 to execute Song Daodong since the piston 91 is not limited also and will continue to move along
Make, when the gas nozzle accesses compressed air, drives the piston 91 and piston rod 90 by the pressure that the compressed air applies
It slides backward, when piston rod 90 disengages 6 end face of pull rod, cylinder component makes to make the oil cylinder to bottom offset by compressed air
The interior step ring 920 of bottom plate 92 and the front end face of the position-arresting disk 500 disengage.
In the floating knife-loosing mechanism of above-mentioned permanent magnet synchronization motor spindle, the knot that is slidably connected is set by oil cylinder 93 and oil cylinder set 94
Structure, while the rear end of the rotor core 50 being provided with position-arresting disk 500, and make the interior step ring 920 of the oil cylinder bottom plate 92
Before the position-arresting disk 500, the interior rear side that the position-arresting disk 500 is set to along 930 of the oil cylinder 93, by oil cylinder
Hydraulic oil is loaded in 93 to drive 6 forward slip of the piston 91, piston rod 90 and pull rod, and then realizes loose knife movement, the mistake
The forward movement of piston 91 described in journey forces 92 opposite direction of oil cylinder bottom plate of cylinder component to be displaced, and makes in the oil cylinder bottom plate 92
Step ring 920 is pushed against in the front end face of the position-arresting disk 500, and the thrust that piston rod 90 applies at this time is shifted by position-arresting disk 500
To the oil cylinder bottom plate 92 of cylinder component itself, cylinder component ontology self-forming a positive and a negative active force, compared with prior art and
Speech, avoids loose knife stress loading and not only increases main shaft precision in preceding end bearing, and improve the service life of bearing.
In order to realize the conduction of hydraulic oil, in the present embodiment, the lateral wall of the oil cylinder 93 offers the ring of predetermined width
Shape oil groove 931, the side wall of the oil cylinder 93 offer oilhole 932, and the oilhole 932 is by the annular oil groove 931 and the oil
The internal cavities of cylinder 93 are connected, and the oil cylinder set 94 is covered in the annular oil groove 931, and the oil nozzle 80 is connected to the ring
Shape oil groove 931.
Further, the oil nozzle 80 is fixed in the back-cover 8, and oil cylinder set 94 and the annular oil groove 931
Between by being connected through the Oil Guide channel 81 of the back-cover 8 and the oil cylinder set 94.Wherein, the annular oil groove 931
Width be greater than Oil Guide channel 81 it is open-ended, the range of the width of the annular oil groove 931 should be set as, in main shaft knife loosening
During broaching tool, no matter the oil cylinder 93 forward or is slided backward, and the open-ended of the Oil Guide channel 81 should all be
Within the coverage area of the annular oil groove 931.
Empty avoiding recess 950, the empty avoiding recess 950 and institute are offered on the oil cylinder cover 95 as a preferred method,
State the alignment of oilhole 932.
On this basis, the present embodiment also discloses a kind of permanent magnet synchronization motor spindle, in conjunction with shown in Fig. 1, Figure 23 to Figure 29,
It includes above-described floating knife-loosing mechanism.
The above is preferred embodiments of the present invention, is not intended to restrict the invention, all in technology model of the invention
Interior done modification, equivalent replacement or improvement etc. are enclosed, should be included in the range of of the invention protect.
Claims (7)
1. a kind of rotor assembly of electro spindle, which is characterized in that include hollow rotor core (50), in the rotor core (50)
It is equipped with hollow pull rod (6), pull rod (6) front end is equipped with circumferentially distributed multiple side openings (66), the side opening (66)
It is connected with the inner passage of the pull rod (6), circumferentially distributed multiple L shapes is offered in the side wall of the rotor core (50)
Hole (51), L shape hole (51) include transverse holes (52) and longitudinal hole (53), the transverse holes (52) and the side opening (66)
It corresponds, the longitudinal hole (53) extends to the front end surface of the rotor core (50), and the front end of the rotor core (50) is used
In installation knife handle (7), the inner passage of the pull rod (6) is for accessing compressed air, and the compressed air is by the pull rod (6)
Front end blows to the rear end of the knife handle (7), then by blowing out outward around the knife handle (7), when the pull rod (6) moves backward
When, the side opening (66) is staggered with the transverse holes (52), to enable the inner passage and L shape hole (51) of the pull rod (6)
Junction close, when the pull rod (6) move forward when, the side opening (66) is aligned with the transverse holes (52), to enable
The inner passage and L shape hole (51) for stating pull rod (6) are interconnected, and the compressed air in the pull rod (6) is successively by side
Hole (66), transverse holes (52) and longitudinal hole (53) blow to the end face of the knife handle (7).
2. the rotor assembly of electro spindle as described in claim 1, which is characterized in that between the pull rod (6) and knife handle (7) by
Afterwards to front end connecting rod (60) and strut (61) is before successively arranged, the front end connecting rod (60) and strut (61) are in hollow
The rear end of shape, the front end connecting rod (60) is fixedly connected with the pull rod (6), and the front end of the front end connecting rod (60) plugs
In the strut (61) and the two is fixedly connected, side wall of the side opening (66) through the front end connecting rod (60).
3. the rotor assembly of electro spindle as described in claim 1, which is characterized in that the front end surface shape of the rotor core (50)
At having multiple boss (54), multiple boss (54) are uniformly distributed along the circumferential direction of the rotor core (50), the boss (54) and institute
L shape hole (51) one-to-one correspondence is stated, and the front opening of the longitudinal hole (53) is located at the surface of the boss (54).
4. the rotor assembly of electro spindle as described in claim 1, which is characterized in that be arranged on the rotor core (50) cored
Cover (55), forward horizontal stand ring (56) and rear balance ring (57), the forward horizontal stand ring (56) and rear balance ring (57) respectively with described turn
Sub- core (50) is fixedly connected, and the iron core sleeve (55) is located between the forward horizontal stand ring (56) and rear balance ring (57).
5. the rotor assembly of electro spindle as claimed in claim 4, which is characterized in that opened up in the side wall of the iron core sleeve (55)
There are 4 arc grooves (550), 4 arc grooves (550) are uniformly distributed along the circumferential direction of the iron core sleeve (55), each arc groove (550)
Two sides offer respectively oblique slot (551), the arc groove (550) and oblique slot (551) are through the iron core sleeve
(55) rear and front end, the lateral wall of the arc groove (550) close the iron core sleeve (55), two oblique slots (551) are in
" eight " shape is distributed in the two sides of the arc groove (550), and plugs in the arc groove (550) and the oblique slot (551)
There are permanent magnet (58).
6. the rotor assembly of electro spindle as claimed in claim 5, which is characterized in that between two adjacent oblique slots (551)
Offer rectangular channel (552).
7. a kind of permanent magnet synchronization motor spindle, which is characterized in that include steel cylinder (1), be fixed with stator module in the steel cylinder (1)
(4), rotor assembly as claimed in any one of claims 1 to 6 is equipped in the stator module (4).
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| CN201811440351.9A CN109434141B (en) | 2018-11-29 | 2018-11-29 | Rotor assembly of electric spindle and permanent magnet synchronous electric spindle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811440351.9A CN109434141B (en) | 2018-11-29 | 2018-11-29 | Rotor assembly of electric spindle and permanent magnet synchronous electric spindle |
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| CN109434141B CN109434141B (en) | 2023-12-22 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110281061A (en) * | 2019-06-12 | 2019-09-27 | 深圳市爱贝科精密机械有限公司 | A kind of claw pulling mechanism for center air-out type electro spindle |
| CN110492639A (en) * | 2019-09-17 | 2019-11-22 | 深圳市爱贝科精密机械有限公司 | A kind of rotor mechanism of permanent magnetism electro spindle |
| CN110549149A (en) * | 2019-09-05 | 2019-12-10 | 深圳市爱贝科精密机械有限公司 | Floating type knife forging device and method for main shaft |
| CN110586967A (en) * | 2019-09-28 | 2019-12-20 | 深圳市爱贝科精密机械有限公司 | Main shaft nose end structure capable of being used for deep cavity machining and main shaft |
| CN110919030A (en) * | 2019-12-23 | 2020-03-27 | 深圳市爱贝科精密机械有限公司 | Belt main shaft with front end air seal |
| CN111230552A (en) * | 2020-01-30 | 2020-06-05 | 深圳市爱贝科精密机械有限公司 | Dirty main shaft handle of a knife clamping mechanism is hidden to terminal surface |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202978479U (en) * | 2012-11-05 | 2013-06-05 | 艾默生环境优化技术(苏州)有限公司 | Motor rotor and motor and compressor comprising same |
| CN203527151U (en) * | 2013-09-25 | 2014-04-09 | 广州市昊志机电股份有限公司 | Cutter handle in-place detecting device of high-speed electric spindle broach mechanism |
| CN203674833U (en) * | 2014-01-17 | 2014-06-25 | 河南理工大学 | Permanent magnetic motor rotor |
| JP2015133839A (en) * | 2014-01-14 | 2015-07-23 | 株式会社ジェイテクト | Magnet-embedded rotor |
| CN106469953A (en) * | 2015-08-18 | 2017-03-01 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of motor and its rotor |
| CN107175533A (en) * | 2017-06-01 | 2017-09-19 | 深圳市速锋科技股份有限公司 | A kind of end face of HSK taper holes is forged a knife blowing structure |
| CN206567922U (en) * | 2017-01-23 | 2017-10-20 | 广州市昊志机电股份有限公司 | A kind of structure for feeding back main axle cutter status information |
| CN107378004A (en) * | 2017-07-12 | 2017-11-24 | 广州市昊志机电股份有限公司 | A kind of contact central water outlet permanent magnet synchronization motor spindle |
| CN107968502A (en) * | 2017-12-21 | 2018-04-27 | 珠海格力电器股份有限公司 | Rotor and magneto |
| CN209303730U (en) * | 2018-11-29 | 2019-08-27 | 深圳市爱贝科精密机械有限公司 | A kind of rotor assembly and permanent magnet synchronization motor spindle of electro spindle |
-
2018
- 2018-11-29 CN CN201811440351.9A patent/CN109434141B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202978479U (en) * | 2012-11-05 | 2013-06-05 | 艾默生环境优化技术(苏州)有限公司 | Motor rotor and motor and compressor comprising same |
| CN203527151U (en) * | 2013-09-25 | 2014-04-09 | 广州市昊志机电股份有限公司 | Cutter handle in-place detecting device of high-speed electric spindle broach mechanism |
| JP2015133839A (en) * | 2014-01-14 | 2015-07-23 | 株式会社ジェイテクト | Magnet-embedded rotor |
| CN203674833U (en) * | 2014-01-17 | 2014-06-25 | 河南理工大学 | Permanent magnetic motor rotor |
| CN106469953A (en) * | 2015-08-18 | 2017-03-01 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of motor and its rotor |
| CN206567922U (en) * | 2017-01-23 | 2017-10-20 | 广州市昊志机电股份有限公司 | A kind of structure for feeding back main axle cutter status information |
| CN107175533A (en) * | 2017-06-01 | 2017-09-19 | 深圳市速锋科技股份有限公司 | A kind of end face of HSK taper holes is forged a knife blowing structure |
| CN107378004A (en) * | 2017-07-12 | 2017-11-24 | 广州市昊志机电股份有限公司 | A kind of contact central water outlet permanent magnet synchronization motor spindle |
| CN107968502A (en) * | 2017-12-21 | 2018-04-27 | 珠海格力电器股份有限公司 | Rotor and magneto |
| CN209303730U (en) * | 2018-11-29 | 2019-08-27 | 深圳市爱贝科精密机械有限公司 | A kind of rotor assembly and permanent magnet synchronization motor spindle of electro spindle |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110281061A (en) * | 2019-06-12 | 2019-09-27 | 深圳市爱贝科精密机械有限公司 | A kind of claw pulling mechanism for center air-out type electro spindle |
| CN110549149A (en) * | 2019-09-05 | 2019-12-10 | 深圳市爱贝科精密机械有限公司 | Floating type knife forging device and method for main shaft |
| CN110492639A (en) * | 2019-09-17 | 2019-11-22 | 深圳市爱贝科精密机械有限公司 | A kind of rotor mechanism of permanent magnetism electro spindle |
| CN110586967A (en) * | 2019-09-28 | 2019-12-20 | 深圳市爱贝科精密机械有限公司 | Main shaft nose end structure capable of being used for deep cavity machining and main shaft |
| CN110919030A (en) * | 2019-12-23 | 2020-03-27 | 深圳市爱贝科精密机械有限公司 | Belt main shaft with front end air seal |
| CN111230552A (en) * | 2020-01-30 | 2020-06-05 | 深圳市爱贝科精密机械有限公司 | Dirty main shaft handle of a knife clamping mechanism is hidden to terminal surface |
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| CN109434141B (en) | 2023-12-22 |
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Address after: 518111 2nd floor, building A6, silicon valley power intelligent terminal Industrial Park, 20 Dafu Industrial Zone, Aobei community, Guanlan street, Longhua New District, Shenzhen City, Guangdong Province Applicant after: Shenzhen aibeike Precision Industry Co.,Ltd. Address before: 518111 2nd floor, building A6, silicon valley power intelligent terminal Industrial Park, 20 Dafu Industrial Zone, Aobei community, Guanlan street, Longhua New District, Shenzhen City, Guangdong Province Applicant before: SHENZHEN ABIG PRECISION MACHINERY Co.,Ltd. |
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