Utility model content
The technical problems to be solved in the utility model is, for the deficiencies in the prior art, provides a kind of tool changing of machinery forever
Magnetic-synchro electro spindle, in order to directly to replace pure mechanic structure associated mode main shaft, and can improve the machining accuracy of lathe, reduce and damage
Consume and cost-effective.
For solving above-mentioned technical problem, the utility model adopts the following technical scheme that.
A kind of machinery tool changing permanent magnet synchronization motor spindle, it includes steel cylinder assembly, is provided with front axle below described steel cylinder assembly
Bearing assembly, the bearing interior of described front-end bearing pedestal assembly is provided with front axle bearing assembly, is provided with axle below described front-end bearing pedestal assembly
Bearing plate, is provided with dust-proof ring assemblies, is additionally provided with dust cap below described front axle bearing assembly below described bearing plate, described dust-proof
It is provided with waterproof cover, the inner chamber of described steel cylinder assembly is provided with stator module, is provided with rear bearing block above described steel cylinder assembly below lid
Assembly, the bearing interior of described rear bearing block assembly is provided with pretension disc spring, adjust pad and rear bearing assembly, described rear bearing block
It is provided with end cap above assembly, above described end cap, be provided with piston jacket, push rod, push rod pad, back-moving spring and valve check valve
Assembly, described stator module inner chamber is provided with rotor assembly, and described rotor assembly is arranged in dust-proof ring assemblies, bearing plate, front axle
Bearing assembly, stator module and rear bearing block assembly, the inner chamber of described rotor assembly is provided with rod assembly, described rod assembly
Front end is provided with pulling claw holder assembly, and the inner chamber of described rod assembly end is provided with valve check valve assembly, before described rotor assembly
End is provided with handle of a knife, and the rear end of described rotor assembly is provided with rear Bearing housing, and the top of described rear Bearing housing is provided with encoder and divides
Scale, the top of described encoder index dial is provided with armature nut.
Preferably, described front-end bearing pedestal assembly includes front-end bearing pedestal and front-end bearing pedestal overcoat, and described front-end bearing pedestal sets
Have a cooling water channel, described cooling water channel be respectively arranged at two ends with the first O-shaped O-ring seal, described first O-shaped O-ring seal with front
Bearing block overcoat interference fit and be used for sealing cooling water channel, the assembling position of described front-end bearing pedestal includes short seam and flange knot
Structure, the inner chamber of described front-end bearing pedestal assembly is used for assembling front axle bearing assembly, and described bearing plate is provided with sealing ring, described bearing pressure
It is provided with dust-proof ring assemblies, described dust-proof ring assemblies are provided with compressed air outlet port, are provided with dust-proof below described fore bearing below plate
Lid, is provided with waterproof cover below described dust cap.
Preferably, described steel cylinder assembly includes water jacket and steel bushing, and the side wall of described water jacket runs through and is provided with pod apertures and leading
Pore, the outside of described water jacket is provided with coolant flow channel, and the both sides of described coolant flow channel are provided with for assembling the second O-shaped O-ring seal
Seal groove, the lateral wall in described water jacket centre position offers screw hole, and the both ends of the surface of described water jacket are respectively provided with
Assemble the counter sink of the second O-shaped O-ring seal, one of two end faces of described water jacket are flange, described steel bushing is filled with water jacket interference
Join and be combined into steel cylinder assembly.
Preferably, described rear bearing block assembly include rear bearing block, pretension disc spring, adjust pad, rear bearing assembly,
One O-ring seal and the second O-ring seal, described rear bearing block is provided with through wires hole, coolant flow channel, coolant flow channel entrance, pressure
Contracting air intake, coolant flow channel outlet, encoder install keyway and bearing chamber, and the inwall of described bearing chamber is provided with aprons slot, institute
The endoporus stating pretension disc spring is provided with 8 grooves that stretch out being uniformly distributed distribution, described adjust pad located at pretension disc spring and after
Between bearing assembly.
Preferably, described end cap is provided with power outlet hole, encoder wire hole, back-moving spring pilot hole, ear groove, cold
But entrance, compressed air inlet, coolant outlet, valve check valve assembly, pilot hole, sliding sleeve groove, column and column mesopore,
Described column mesopore, through end cap, is equipped with piston jacket above described end cap, and described piston jacket includes ear shape machine
Structure, through the mesopore of piston jacket and located at piston jacket end face and for assembling the seal groove of sealing ring, described ear shape
The side of mechanism is provided with side opening, and described mesopore is slidably matched with the column of end cap, is equipped with sliding sleeve at described sliding sleeve groove, described
The end face of column is provided with push rod pad, and the centre of described push rod pad is through hole, and described push rod is assemblied on piston jacket, institute
Stating push rod is " T " shape structure, and described push rod is provided with end face groove, spacing end face, runs through side opening, central blind hole, sliding sleeve groove and end
Face through hole.
Preferably, described rotor assembly provides excitation by permanent magnet, and described rotor assembly includes rotor core, located at rotor
End plate on core, rotor core and end plate, the lateral wall of described rotor core is provided with 4 arc grooves, two adjacent circular arc grooves
Between be provided with separate slot muscle, described arc groove is equipped with permanent magnet, the inside and outside wall of described permanent magnet is circular arc, described permanent magnet
Thickness be gradually reduced from centre to both sides, in the external arc of described permanent magnet, elastic conjunction has permanent magnet outer jointing jacket, described
Multiple V-groove are evenly distributed with outer jointing jacket, the external arc of described permanent magnet is provided with insulation coating, described rotor core and turning
Sub- iron core interference fit.
Preferably, the ratio of the interior thickness of described permanent magnet and thickness of two sides is between 2~3.6, described permanent magnet interior
Circular arc is identical with the circular arc groove shape of rotor core, assembles one or more pieces permanent magnetism in each arc groove of described rotor core
Body.
Preferably, to include pull bar, the disc spring on pull bar, slide block, fixed block and valve unidirectional for described rod assembly
Valve module, the inner hole outer circularity of described slide block is provided with the first fluting, and described first fluting is provided with slide block set, and described slide block will set
Disc spring on pull bar is divided into two parts, and the front end of described pull bar is provided with the first thread, and its main part is provided with and fixed block phase
Second thread of cooperation, its end is provided with the second fluting, the second fluting is equipped with drag link sleeve, described pull bar center is provided with to be run through
In the centre bore of pull bar, described valve check valve assembly is fixed on the 3rd thread of pull bar end.
Preferably, described pulling claw holder assembly includes fixed cover, pulling claw retainer ring, pulling claw, spring and sliding sleeve, described fixation
Put and be provided with sliding sleeve groove, external screw teeth and pulling claw fitting recess, the end face of described pulling claw retainer ring is provided with endoporus thread and is uniformly distributed
Convex key, the rear end of described pulling claw is provided with the 4th fluting.
Preferably, described encoder index dial is installed on the end of rotor assembly, and the lower section of described encoder index dial is
Bearing housing afterwards, is armature nut above it, and the end face of described armature nut runs through and is provided with 10 equally distributed screw thread holes, institute
State thread in the hole and offer thread.
In mechanical tool changing permanent magnet synchronization motor spindle disclosed in the utility model, its tool changing mode continues use and mechanical main shaft
Identical thrust source, therefore, directly can be by the mechanical main shaft used by the utility model electro spindle existing lathe of replacement, need not be more
Change the other structures of lathe, meanwhile, the lathe after replacing is all lifted in working (machining) efficiency, precision, additionally, the utility model
Can also reduce and be lost and cost-effective.
Specific embodiment
With reference to the accompanying drawings and examples the utility model is described in more detail.
The utility model discloses a kind of machinery tool changing permanent magnet synchronization motor spindle, in conjunction with shown in Fig. 1 to Fig. 4, it includes
Steel cylinder assembly 8, is provided with front-end bearing pedestal assembly 6 below described steel cylinder assembly 8, the bearing interior of described front-end bearing pedestal assembly 6 is provided with
Front axle bearing assembly 7, is provided with bearing plate 5, is provided with dust-proof ring group below described bearing plate 5 below described front-end bearing pedestal assembly 7
Part 4, is additionally provided with dust cap 2 below described front axle bearing assembly 7, be provided with waterproof cover 3, described steel cylinder assembly 7 below described dust cap 2
Inner chamber be provided with stator module 10, be provided with rear bearing block assembly 15 above described steel cylinder assembly 8, described rear bearing block assembly 15
Bearing interior is provided with pretension disc spring 14, adjust pad 13 and rear bearing assembly 16, is provided with end above described rear bearing block assembly 15
Lid 18, is provided with piston jacket 22, push rod 26, push rod pad 25, back-moving spring 27 and valve check valve group above described end cap 18
Part 23, described stator module 10 inner chamber is provided with rotor assembly 11, and described rotor assembly 11 is arranged in dust-proof ring assemblies 4, bearing pressure
Plate 5, front-end bearing pedestal assembly 6, stator module 10 and rear bearing block assembly 15, the inner chamber of described rotor assembly 11 is provided with rod assembly
12, the front end of described rod assembly 12 is provided with pulling claw holder assembly 9, and the inner chamber of described rod assembly 12 end is provided with valve check valve
Assembly 21, the front end of described rotor assembly 11 is provided with handle of a knife 1, and the rear end of described rotor assembly 11 is provided with rear Bearing housing 17, institute
The top stating rear Bearing housing 17 is provided with encoder index dial 19, and the top of described encoder index dial 19 is provided with armature nut
20.
In the electro spindle of said structure, its tool changing mode continues use and mechanical main shaft identical thrust source, directly permissible
The utility model is replaced existing machine tool mechanical main shaft, the other structures of lathe need not be changed, meanwhile, the lathe after replacing exists
All lifted in working (machining) efficiency, precision.
With regard to the concrete structure of front-end bearing pedestal assembly 6, in conjunction with shown in Fig. 1 and Fig. 2, described front-end bearing pedestal assembly 6 includes
Front-end bearing pedestal 6.1 and front-end bearing pedestal overcoat 6.2, described front-end bearing pedestal 6.1 is provided with cooling water channel, the two ends of described cooling water channel
It is respectively equipped with the first O-shaped O-ring seal, described first O-shaped O-ring seal is with front-end bearing pedestal overcoat 6.2 interference fit and for close
Seal cooling water road, the assembling position of described front-end bearing pedestal 6.1 includes short seam and flange arrangement, described front-end bearing pedestal assembly 6 interior
Chamber is used for assembling front axle bearing assembly 7, and described bearing plate 5 is provided with sealing ring, is provided with dust-proof ring assemblies below described bearing plate 5
4, described dust-proof ring assemblies 4 are provided with compressed air outlet port, are provided with dust cap 2, below described dust cap 2 below described fore bearing
It is provided with waterproof cover 3.
As a kind of preferred embodiment, refer to Fig. 1, Fig. 3 and Fig. 4, described steel cylinder assembly 8 includes water jacket 8.1 and steel bushing
8.2, the side wall of described water jacket 8.1 runs through and is provided with pod apertures and gas port, and the outside of described water jacket 8.1 is provided with coolant flow channel, institute
The both sides stating coolant flow channel are provided with seal groove for assembling the second O-shaped O-ring seal, described water jacket 8.1 centre position outer
Side wall offers screw hole, and the both ends of the surface of described water jacket 8.1 are respectively provided with the counter sink of assembling the second O-shaped O-ring seal,
One of two end faces of described water jacket 8.1 are flange, described steel bushing 8.2 and water jacket 8.1 elastic conjunction and be combined into steel cylinder assembly
8.
With regard to the concrete structure of rear bearing block assembly 15, in conjunction with shown in Fig. 1, Fig. 5 to Fig. 9, described rear bearing block assembly 15
Include rear bearing block 15.1, pretension disc spring 15.2, adjust pad 15.3, rear bearing assembly 15.4, the first O-ring seal 15.5
With the second O-ring seal 15.6, described rear bearing block 15.1 is provided with through wires hole 15.11, coolant flow channel 15.12, coolant flow channel
Entrance 15.13, compressed air inlet 15.14, coolant flow channel outlet 15.15, encoder install keyway 15.16 and bearing chamber
15.19, the inwall of described bearing chamber 15.19 is provided with aprons slot 15.18, and the endoporus of described pretension disc spring 15.2 is provided with 8 uniformly
The groove 15.21 that stretches out of distribution distribution, described adjust pad 15.3 located at pretension disc spring 15.2 and rear bearing assembly 15.4 it
Between.
In the present embodiment, in conjunction with shown in Fig. 1, Figure 10 to Figure 15, described end cap 18 is provided with power outlet hole 18.1, coding
Device wire hole 18.2, back-moving spring 27 pilot hole 18.3, ear groove 18.4, cooling entrance 18.5, compressed air inlet 18.6, cold
But outlet 18.7, valve check valve assembly 23, pilot hole 18.8, sliding sleeve groove 18.9, column 18.90 and column mesopore
18.91, described column mesopore 18.91, through end cap 18, is equipped with piston jacket 22, described piston above described end cap 18
Overcoat 22 includes Er Xing mechanism 22.1, through the mesopore 22.2 of piston jacket 22 and located at piston jacket 22 end face and use
In the seal groove 22.3 of assembling sealing ring, the side of described Er Xing mechanism 22.1 is provided with side opening 22.4, described mesopore 22.2 and end
The column 18.90 of lid 18 is slidably matched, and is equipped with sliding sleeve 18.92, the end of described column 18.90 at described sliding sleeve groove 18.9
Face is provided with push rod pad 25, and the centre of described push rod pad 25 is through hole 25.1, and described push rod 26 is assemblied on piston jacket 22,
Described push rod 26 be " T " shape structure, described push rod 26 be provided with end face groove 26.1, spacing end face 26.2, run through side opening 26.3, in
Heart blind hole 26.4, sliding sleeve groove 26.5 and end face through hole 26.6.
Wherein, during main shaft tool changing center air outlet structure interface position in rear-end of spindle, gas circuit structure is good, cleverly using pushing away
Power source is ordered about and when push rod moves downward is opened valve check valve, so that center during tool changing is given vent to anger, to clean rotor taper position and knife
Handle taper position, and then knife precision grabbed by raising main shaft.Additionally, main shaft cooling capacity is strong, cooling order is first to cool down front-end bearing pedestal group
Front axle bearing assembly 7 in part 6, makes that rotor assembly 11 front end thermal stretching is little, and axial precision is good, and it is little that bearing runs temperature rise, can be effective
Improve service life.
In said structure, described spindle machine cutter-exchange mechanism by end cap 18, piston jacket 22, push rod 26, back-moving spring 27,
Push rod pad 25 combination is assembled as described above combining, and its principle is to shift up offer thrust source, thrust source machine by machine Z-axis
Component arrives to the ear shape 22.1 on push rod 26 or piston jacket 22, makes main shaft push rod 26 arrive to main shaft rod assembly to bottom offset
, to bottom offset, on pulling claw holder assembly 9, pulling claw opens post-tensioning pawl seat assembly 9 for 12 ends, pushing drawing rod assembly 12 and pulling claw holder assembly 9
To handle of a knife 1 blind rivet end face, thus unloading handle of a knife 1, main shaft is grabbed knife process, for lathe cutter-exchange mechanism, knife is delivered to main shaft on median plane top
Center cone mouth, machine Z-axis gradually die down and mechanism member, main shaft rod assembly 12, push rod 26, work to bottom offset, simultaneously thrust source
Set 22 moves up beyond the Great Wall, and the pulling claw on pulling claw holder assembly 9 shrinks catches handle of a knife 1 blind rivet to strain upwards, and final handle of a knife 1 pastes completely
After main shaft cone mouth, rod assembly 12 stops displacement, and the back-moving spring 27 on end cap 18 is by push rod 26, piston jacket 22 upwards
Top, makes push rod 26 end face leave rod assembly 12 terminal surface and completes tool changing action.
With regard to the composition structure of rotor assembly 11, refer to shown in Fig. 1, Figure 16, Figure 17 and Figure 18, described rotor assembly 11
There is provided excitation by permanent magnet 11.1, described rotor assembly 11 includes rotor core 11.2, the end plate on rotor core 11.2
11.3rd, rotor core 11.4 and end plate 11.5, the lateral wall of described rotor core 11.4 is provided with 4 arc grooves 11.41, two
It is provided with separate slot muscle 11.42 between adjacent circular arc groove 11.41, described arc groove 11.41 is equipped with permanent magnet 11.1, described permanent magnetism
The inside and outside wall of body 11.1 is circular arc, and the thickness of described permanent magnet 11.1 is gradually reduced from centre to both sides, described permanent magnet
In 11.1 external arc, elastic conjunction has permanent magnet outer jointing jacket 11.6, and described outer jointing jacket 11.6 is evenly distributed with multiple V
Type groove 11.61, the external arc of described permanent magnet is provided with insulation coating, and described rotor core 11.2 and rotor core 11.4 interference are joined
Close.
In said structure, on the rotor assembly of main shaft, permanent magnet outer jointing jacket is cylindrical opens V-groove, when can reduce main shaft operation
Heating, thus decreasing rotor core and the caloric value of whole main shaft, thus the Main Shaft Service Life extending, increases the market of product
Competitiveness, is easy to produce and promotes.
Further, the interior thickness of described permanent magnet 11.1 and the ratio of thickness of two sides be between 2~3.6, described permanent magnetism
The Inner arc of body 11.1 is identical with arc groove 11.41 shape of rotor core 11.4, each circular arc of described rotor core 11.4
One or more pieces permanent magnets 11.1 are assembled in groove.
In said structure, the permanent magnet of rotor assembly, its structure is that interior thickness is larger, gradually thinning toward both sides successively
Between 2 to 3.6, the reaction electromotive force of motor is pure sinusoid to the ratio of structure, interior thickness and thickness of two sides, no other harmonic wave electricity
Kinetic potential, is conducive to driving and positions, the steady pulse free of motor slotless torque, and moment of torsion simultaneously.
With regard to the concrete structure of rod assembly 12, refer to shown in Fig. 1, Figure 19 and Figure 20, described rod assembly 12 includes
There are pull bar 12.1, the disc spring 12.2 on pull bar 12.1, slide block 12.3, fixed block 12.4 and valve check valve assembly 21, institute
The inner hole outer circularity stating slide block 12.3 is provided with the first fluting 12.31, and described first fluting 12.31 is provided with slide block set 12.5, institute
State slide block 12.3 and the disc spring 12.2 on pull bar 12.1 is divided into two parts, the front end of described pull bar 12.1 is provided with the first thread
12.11, its main part is provided with the second thread 12.12 matching with fixed block, and its end is provided with the second fluting 12.13, the
It is equipped with drag link sleeve 12.6, described pull bar 12.1 center is provided with the centre bore through pull bar 12.1 on two flutings 12.13
12.15, described valve check valve assembly 21 is fixed on the 3rd thread 12.16 of pull bar 12.1 end.Wherein, rod assembly end
It is equipped with valve check valve assembly so that the water resistance of main shaft is more preferable.
With regard to the concrete structure of pulling claw holder assembly 9, refer to shown in Fig. 1, Figure 21 to Figure 24, described pulling claw holder assembly 9 wraps
Containing fixed cover 9.1, pulling claw retainer ring 9.2, pulling claw 9.3, spring 9.4 and sliding sleeve 9.5, described fixed cover 9.1 is provided with sliding sleeve
Groove 9.11, external screw teeth 9.12 and pulling claw fitting recess 9.13, the end face of described pulling claw retainer ring 9.2 is provided with endoporus thread 9.22 and all
The convex key 9.21 of even distribution, the rear end of described pulling claw 9.3 is provided with the 4th fluting 9.31.
Wherein, pulling claw fixed cover is provided with the groove of convex key cooperation, and both cooperations make pulling claw position fix, main shaft simultaneously
Dynamic equilibrium position fixed, spindle vibration value is preferable.
With regard to the mounting structure of encoder, in conjunction with shown in Fig. 1 and Figure 25, described encoder index dial 19 is installed on rotor set
The end of part 11, the lower section of described encoder index dial 19 is rear Bearing housing 17, is armature nut 20 above it, described rotor
The end face of nut 20 runs through and is provided with 10 equally distributed screw thread holes 20.1, offers thread 20.2 in described screw thread hole 20.1.
Based on said structure, encoder index dial is arranged on rotor core, and its assembling mode is the cooperation of high-accuracy gap, leads to
Cross and be contained between bearing fixing nut and armature nut, using the screw hole regular coding device indexing on armature nut end face circumference
Disk, makes encoder index dial no skid and install convenient when main shaft quickly starts, stops, running, the accurate position of controllable main shaft
Put feeding, stop, and opposite direction feeds no because connection gap causes site error.
Mechanical tool changing permanent magnet synchronization motor spindle disclosed in the utility model, it achieves, and main-shaft torque is big, Velocity Step Technique rings
Should fast, pulsating torque is little, moment of torsion and current ratio are constant, power factor is high, electric efficiency is high, rotor no copper loss, rotor
With stator field synchronization so that copper loss and iron loss increase when the non-inductive motor of rotor need to increase power output, cause rotor temperature
Degree change, manufactures few on parameter of electric machine change impact, parameter of electric machine uniformity is good, is easy to the difference of performance between high-speed electric main shaft,
It is easy to Digit Control Machine Tool and controls otherness, be easy to the popularization of numerical control device, energy back also can be wired back net in braking by main shaft, section
The about energy.
The above is the utility model preferred embodiment, is not limited to the utility model, all in this practicality
Modification, equivalent or improvement made in new technical scope etc., should be included in the model that the utility model is protected
In enclosing.