CN207373358U

CN207373358U - A kind of electro spindle

Info

Publication number: CN207373358U
Application number: CN201720965769.6U
Authority: CN
Inventors: 汤秀清; 邓钟波
Original assignee: Guangzhou Haozhi Electromechanical Co Ltd
Current assignee: Guangzhou Haozhi Electromechanical Co Ltd
Priority date: 2017-08-02
Filing date: 2017-08-02
Publication date: 2018-05-18
Anticipated expiration: 2027-08-02

Abstract

The utility model discloses a kind of electro spindle, suitable for carpenter's stock-removing machine, including：Case component forms an installation cavity；Stator module, in the middle part of installation cavity；Axle core component is arranged at stator module, drives its rotation by stator module, axle core component is hollow structure；Bit replacing component, including pull rod and pulling claw, pulling claw is contractably arranged on the front end of axle core component, for connecting a cutter head, pull rod is axially movable in axle core component, and the rear end of pull rod is extended to outside axle core component, and front end and the pulling claw of pull rod coordinate, when pull rod moves axially, pulling claw is driven to shrink or expand；Air-cooled component, arranged on the rear end of case component；And cylinder assembly, it is corresponding with the rear end of pull rod arranged on axle core component rear end, for pull rod to be driven to move.

Description

A kind of electro spindle

Technical field

The utility model is related to a kind of electro spindles.

Background technology

China's woodworking machinery rapid development, Products of Woodworking Machinery general technical level have had increased significantly, city Field is increasing to high-quality and efficient automatic and automanual Products of Woodworking Machinery demand, and to processing efficiency and quality requirement It is higher and higher.Carpenter's stock-removing machine and the operating condition of common Metal Cutting Machine Tool are different, the material of processing be timber or Person's composite wooden material, processing environment dust are relatively more；In addition, polluted product, timber processing do not allow liquid to moisten in order to prevent Sliding and cooling.Therefore, critical component of the high-speed electric main shaft as carpenter's numerically-controlled router, there are many particular/special requirements.

Utility model content

For overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of electro spindles, and it is suitable for wood Work stock-removing machine.

One of the purpose of this utility model adopts the following technical scheme that realization：

A kind of electro spindle, including：

Case component forms an installation cavity；

Stator module, in the middle part of the installation cavity；

Axle core component is arranged at the stator module, drives its rotation by the stator module, axle core component is hollow Structure；

Bit replacing component, including pull rod and pulling claw, the pulling claw is contractably arranged on the front end of the axle core component, For a cutter head to be detachably held in the front end of the axle core component, the pull rod is axially displaceably arranged on the shaft core In component, the front end of the pull rod coordinates with the pulling claw, when the pull rod moves axially, the pulling claw is driven to shrink or expand ；

Cylinder assembly, arranged on the axle core component rear end, the cylinder assembly is opposite with the rear end of the pull rod, for driving The dynamic pull rod movement, the air inlet of the cylinder assembly are connected with the inside of the axle core component, and high pressure draught is suitable for passing through The cylinder assembly enters in the axle core component, is finally blown out from the front end of the axle core component；And

Air-cooled component, arranged on the rear end of the case component.

The said program of the utility model carries out the stator module and the axle core component using air-cooled component cold But, it is entirely avoided the use of cooling water, air-cooled component can also play the role of dedusting；Pass through bit replacing component and cylinder The detachably connectable of cutter head and axle core component is realized in the cooperation of component；Made by the cylinder assembly described in high pressure draught entrance In axle core component, realize to the dedusting inside the axle core component.

Further, the rear end of the pull rod has gas channel, for the air-flow of the back end of tie rod to be inducted into institute It states between pull rod and the axle core component, there is the cylinder assembly air inlet connected with the gas channel of the back end of tie rod to lead to Road, so as to which high pressure draught can enter the gas channel of the back end of tie rod by the cylinder assembly, before the axle core component Portion has the gas channel of radial direction, for the air-flow between the pull rod and the axle core component to be inducted into the axle core component Between the case component, the front end of the axle core component has the gas channel for tilting extension, for making the shaft core group Air-flow between part and the case component blows to the front end inside the axle core component.

Above-mentioned technical proposal optimizes the drifting dust gas circuit of electro spindle, advantageously reduces the dust accumulation in axle core component, extends electricity The service life of main shaft.

Further, the cylinder assembly includes cylinder head cover, first piston, piston rod and partition plate, the partition plate In front of the cylinder head cover, the first piston is arranged between the cylinder head cover and the partition plate, the piston rod One end is connected with the first piston, and the other end is opposite with the rear end of the pull rod through the partition plate；The cylinder head cover tool There is the first inlet channel, the outlet of first inlet channel is opposite with the first piston；The partition plate has the 3rd air inlet Passage, the outlet of the 3rd inlet channel are opposite with the first piston；The partition plate also has the 4th inlet channel, described The outlet of 4th inlet channel is opposite with the piston rod；There is the 5th inlet channel, when the work on the piston rod When the front end of plug connecting rod is butted on the pull rod, one end of the 5th inlet channel and the outlet phase of the 4th inlet channel Right, the other end is opposite with the gas channel of the back end of tie rod.

Above-mentioned technical proposal provides a kind of multi-functional cylinder assembly, and the cylinder assembly is applied not only to driving cutter head more Component is changed, also there is drifting dust.

Further, the cylinder assembly further includes second piston, and the second piston is arranged on the front of the partition plate, institute It states second piston to be connected with the piston rod, the partition plate has the second inlet channel, the outlet of second inlet channel Opposite with the second piston, the entrance of second inlet channel is connected with the entrance of first inlet channel.

Above-mentioned technical proposal optimizes cylinder assembly, adds the power during piston rod movement.

Further, the axle core component includes shaft core body and around being arranged on the external rotor of the shaft core sheet, The middle part of the shaft core body forms shaft core through hole, and the pull rod is axially displaceably arranged in the shaft core through hole, the drawing Elastic keeper, when the cylinder assembly removes the active force to the pull rod, institute are equipped between bar and the shaft core body Pull rod is stated to reset under the action of the elastic keeper.

For above-mentioned technical proposal into the cooperation for optimizing cylinder assembly and pull rod, cylinder assembly is only responsible for pushing drawing rod to Forward It is dynamic, and the reset backward of pull rod is then realized by elastic keeper, therefore can be reduced high with the structure of relative simplicity cylinder assembly It calms the anger the use of body.

Further, the rear end of the pull rod has the first axial gas channel and the second gas of at least one radial direction Circulation road, second gas channel are connected with first gas channel, and the forepart of the shaft core body is at least one The 3rd axial gas channel, the shaft core body have at least one inclination extension in the front of the 3rd gas channel 4th gas channel, air-flow enter the pull rod and the axis by first gas channel and second gas channel Between core body, then entered by the 3rd gas channel between the shaft core body and the case component, then passed through 4th gas channel blows to the front end of the shaft core body.

Above-mentioned technical proposal further optimizes the drifting dust gas circuit of pull rod and axle core component so that air-flow can more fully Ground passes through pull rod and axle core component, can not only carry out drifting dust to axle core component front end, and be conducive to take away pull rod and Heat in axle core component plays certain cooling effect.

Further, the shaft core body forms cutter head installation cavity in the front end of the 4th gas channel, a cutter head Connecting pin is adapted to mount in the cutter head installation cavity, and the shaft core body also has the 5th gas channel, the 5th air-flow Passage extends to the front end face of the shaft core body out of described cutter head installation cavity.

On the one hand above-mentioned technical proposal plays the role of dedusting, on the other hand, works as needs by setting the 5th gas channel When replacing cutter head, the air-flow of the 5th gas channel blowout is conducive to unloading for cutter head.

Further, the bit replacing component further includes slide cores and plunger tip, and the plunger tip is arranged on the pulling claw Rear end, for limiting the movement in the pulling claw axial direction, described slide cores one end is connected with the pull rod, and the other end extends into In the pulling claw, the outer diameter of the slide cores front end is more than the internal diameter of the pulling claw, so as to be in the drawing when the slide cores When in pawl, the pulling claw is in expansion state, when the front end of the slide cores moves forward to and the pulling claw with the pull rod During separation, the pulling claw is shunk.

Above-mentioned technical proposal optimizes the cooperation of pulling claw and pull rod, by the opening and closing of the mobile realization pulling claw of pull rod, thus Pulling claw is completed with the connection of cutter head with separating.

Further, the case component include stator mounting portion, arranged on the stator mounting portion rear upper bearing portion, Bearing portions in front of the stator mounting portion, the stator module are installed on the stator mounting portion, the shaft core group The middle part of part passes through the stator module, and the rear end of the axle core component is installed on the upper bearing portion, the axle core component Front end is installed on the bearing portions, and the upper bearing portion is arranged in the installation cavity, and the bearing portions are arranged on the installation Outside chamber.

Above-mentioned technical proposal optimizes the mounting means of axle core component and case component so that axle core component and case component Installation and dismounting it is all very convenient, advantageously reduce maintenance cost.

Further, the electro spindle further includes integrated circuit plate, approach switch sensor and heat-sensitive sensor, described Integrated circuit plate is arranged on outside the case component, and the approach switch sensor is arranged near the pull rod, described for detecting The position of pull rod and the rotation of the shaft core body, the heat-sensitive sensor are described for detecting temperature in the electro spindle Integrated circuit plate is connected with the approach switch sensor and the heat-sensitive sensor signal, and signal is fed back to Machine-Tool Control System.

Above-mentioned technical proposal realizes the Real-time Feedback to electro spindle practical operation situation, and according to feedack pair Electro spindle is controlled accordingly, improves the security of electro spindle operation.

Description of the drawings

Fig. 1 is the sectional view of a preferred embodiment of the utility model；

Fig. 2 is the partial sectional view of a preferred embodiment of the utility model, it is shown that upper bearing portion；

Fig. 3 is the partial sectional view of a preferred embodiment of the utility model, it is shown that bearing portions；

Fig. 4 is the sectional view of a preferred embodiment of the shaft core body of the utility model；

Fig. 5 is the sectional view of a preferred embodiment of the pull rod of the utility model；

Fig. 6 is the partial sectional view of a preferred embodiment of the utility model, it is shown that cylinder assembly；

Fig. 7 is the partial sectional view of another section of cylinder assembly, it is shown that the 3rd inlet channel；

Fig. 8 is the outside schematic diagram of a preferred embodiment of the utility model.

In figure：1st, case component；10th, installation cavity；11st, stator mounting portion；12nd, upper bearing portion；121st, top chock；122、 Upper bearing (metal)；123rd, top bearing lock nut；13rd, bearing portions；131st, lower bearing housing；132nd, lower bearing inner sleeve；133rd, lower axle It holds；134th, lower bearing spacer；135 lower bearing locking nuts；14th, cylinder mounting portion；2nd, stator module；3rd, axle core component；31st, axis Core body；310th, shaft core through hole；32nd, rotor；33rd, screw；4th, bit replacing component；41st, pull rod；411st, the first gas channel； 412nd, the second gas channel；311st, the 3rd gas channel；312nd, the 4th gas channel；313rd, the 5th gas channel；315th, cutter head Installation cavity；42nd, slide cores；43rd, pulling claw, 44, plunger tip；5th, air-cooled component；6th, cylinder assembly；61st, cylinder head cover；62nd, first live Plug；63rd, second piston；64th, piston rod；65th, partition plate；611st, the first inlet channel；651st, the second inlet channel；652nd, the 3rd Inlet channel；653rd, the 4th inlet channel；641st, the 5th inlet channel；7th, cutter head；8th, control assembly；81st, integrated circuit plate； 82nd, approach switch sensor.

Specific embodiment

In the following, with reference to attached drawing and specific embodiment, the utility model is described further, it is necessary to explanation is, On the premise of not colliding, it can be formed in any combination between various embodiments described below or between each technical characteristic new Embodiment.

As shown in figures 1-8, the electro spindle of the utility model includes：Case component 1, stator module 2, axle core component 3, cutter head Replace component 4, air-cooled component 5 and cylinder assembly 6.

Case component 1 forms an installation cavity 10, and stator module 2 is arranged on the middle part of installation cavity 10.

Axle core component 3 is arranged in stator module 2.Stator module 2 is electrically connected with external power supply, is generated alternating magnetic field and is driven Moving axis core assembly 3 rotates.

Axle core component 3 is hollow structure, and bit replacing component 4 is axially displaceably arranged in axle core component 3.Cutter head The one end for replacing component 4 extends to the front end of mandrel component 3, separably attached with a cutter head 7, so that cutter head 7 is detachable Ground is mounted on axle core component 3；The other end of bit replacing component 4 extends the rear end of mandrel component 3 and 6 phase of cylinder assembly It is right, so as to by cylinder assembly 6 bit replacing component 4 be driven to move axially.

Air-cooled component 5 is arranged on the rear end of case component 1, and for blowing to axle core component 3, stator pack is taken away by air-flow The heat that part 2 and axle core component 3 generate；In addition, the air-flow that air-cooled component 5 generates enters electric master when can blow away processing part Dust in axis.

Further, cylinder assembly 6 is connected with the inside of axle core component 3, so as to which cylinder assembly 6 can also be to axle core component Air-flow is passed through in 3, the air-flow for being passed through axle core component 3 is finally blown out from the front end of axle core component 3, can both play air-cooled work With also helping the dust blown away inside axle core component 3.

Case component 1 includes stator mounting portion 11, pacifies arranged on the upper bearing portion 12 at 11 rear of stator mounting portion, arranged on stator The bearing portions 13 and the cylinder mounting portion 14 arranged on 12 rear of upper bearing portion in 11 front of dress portion.Stator module 2 is installed In stator mounting portion 11；The middle part of axle core component 3 passes through stator module 2, and the rear end of axle core component 3 is installed on upper bearing portion 12, The front end of axle core component 3 is installed on bearing portions 13.Cylinder assembly 6 is installed on cylinder mounting portion 14.

Upper bearing portion 12 includes top chock 121, upper bearing (metal) 122 and top bearing lock nut 123.122 sets of upper bearing (metal) Arranged on the rear portion of axle core component 3；Top bearing lock nut 123 is mounted on 3 rear end of axle core component, for limiting 122 axis of upper bearing (metal) To movement；Top chock 121, which surrounds, to be arranged on outside upper bearing (metal) 122, for limiting the movement of 122 radial direction of upper bearing (metal).

Bearing portions 13 include step housing 131,132, two lower bearings 133 of step inner sleeve, lower bearing every Set 134 and lower bearing locking nut 135.Two lower bearings 133 are sheathed on the forepart of axle core component 3, and lower bearing spacer 134 is set It puts between two lower bearings 133；Lower bearing locking nut 135 is mounted on 3 front end of axle core component, for limiting lower bearing 133 Axial movement；Step inner sleeve 132, which surrounds, to be arranged on outside two lower bearings 133, for limiting the movement of 133 radial direction of lower bearing； Step housing 131, which surrounds, to be arranged on outside step inner sleeve 132, and step housing 131 is connected with stator mounting portion 11.

Upper bearing portion 12 is arranged in installation cavity 10.Bearing portions 13 are arranged on outside installation cavity 10, can directly be installed from stator It is removed on the housing in portion 11, it is very convenient so as to the installation and maintenance of bearing portions 13.

Axle core component 3 includes shaft core body 31 and around the rotor 32 being arranged on outside shaft core body 31, rotor 32 and axis Core body 31 is connected by screw 33.Stator module 2 and axle core component 3 form phase asynchronous induction machine, from external equipment to Stator module 2 emits high frequency alternating current, builds alternating magnetic field between stator module 2 and axle core component 3, in axle core component 3 Mouse cage conducting bar generate sensing electric current, and then axle core component 3 is subject to rotation torque, rotates at a high speed.

The middle part of shaft core body 31 forms shaft core through hole 310, and bit replacing component 4 is axially displaceably arranged on shaft core and leads to In hole 310.

Bit replacing component 4 includes pull rod 41, slide cores 42, pulling claw 43 and plunger tip 44.Pull rod 41 is axially displaceably In shaft core through hole 310, the rear end of pull rod 41 is extended from the rear end of shaft core through hole 310, opposite with cylinder assembly 6.Pull rod 41 front end extends to the front end of shaft core through hole 310.

Pulling claw 43 is contractably arranged on the front end of shaft core through hole 310, and plunger tip 44 is arranged on the rear end of pulling claw 43, for limiting The movement of pulling claw 43 processed in the axial direction.The front end of pulling claw 43 forms hook-type, and the inner wall formation of cutter head 7 is corresponding with 43 front end of pulling claw Card slot.Shrinking pulling claw 43 can be such that pulling claw 43 enters in cutter head 7, then expand pulling claw 43, make pulling claw 43 and the card slot in cutter head 7 Clamping, so as to which pulling claw 43 is connected with cutter head.

Pulling claw 43 is hollow structure, and one end of slide cores 42 is connected with pull rod 41, and the other end is extended into pulling claw 43.It is sliding The outer diameter of dynamic 42 front end of core is more than the internal diameter of pulling claw 43, so as to which when 42 front end of slide cores is in pulling claw 43, pulling claw 43 is in Expansion state；When slide cores 42 are moved forward with pull rod 41, the front end of slide cores 42 is separated with pulling claw 43, and pulling claw 43 is shunk, So as to which cutter head 7 can be separated with pulling claw 43；When slide cores 42 are moved backward with pull rod 41, the front end of slide cores 42 is again introduced into drawing In pawl 43, pulling claw 43 is expanded.

The rear end of pull rod 41 has the second gas channel of axial first gas channel 411 and at least one radial direction 412, the second gas channel 412 is connected with the first gas channel 411, when air-flow enters the first gas channel from 41 rear end of pull rod After 411, the side of pull rod 41 is blowed to by the second gas channel 412, then air-flow is along between pull rod 41 and shaft core body 31 Gap flow to 31 front end of shaft core body.

The forepart of shaft core body 31 has at least one a 3rd axial gas channel 311, and the 3rd gas channel 311 is by axis The inside of core body 31 is connected with outside, and the air-flow between pull rod 41 and shaft core body 31 is flowed by the 3rd gas channel 311 To the outer wall of shaft core body 31, and along the gap flow forward between shaft core body 31 and case component 1.Shaft core body 31 exists The front of 3rd gas channel 311 has at least one inclined 4th gas channel 312, and the 4th gas channel 312 is by shaft core sheet The outside of body 31 is connected with inside, and the air-flow between shaft core body 31 and case component 1 enters axis by the 4th gas channel 312 In core body 31.

Shaft core body 31 forms cutter head installation cavity 315 in the front end of the 4th gas channel 312, and the connecting pin of cutter head 7 is suitable for In cutter head installation cavity 315, the front end of pulling claw 43 is also in cutter head installation cavity 315 namely in the 4th gas channel 312 Air-flow directly blow to the connecting pin of cutter head 7.

Shaft core body 31 also has the 5th gas channel 313, one end connection cutter head installation cavity of the 5th gas channel 313 315, the other end extends to the front end face of shaft core body 31.When cutter head 7 is mounted on shaft core body 31, the 5th gas channel 313 is opposite with cutter head 7, suitable for blowing away the dust near cutter head 7, and plays the role of auxiliary and unloads knife.

Cylinder assembly 6 includes cylinder head cover 61, first piston 62, second piston 63, piston rod 64 and partition plate 65.Every Plate 65 is arranged on the front of cylinder head cover 61, and first piston 62 is arranged between cylinder head cover 61 and partition plate 65, second piston 63 be arranged on every The front of plate 65.Partition plate 65 has a through hole, and piston rod 64 is lived through the through hole on partition plate 65 and first piston 62 and second 63 connection of plug, so as to which first piston 62 is synchronous with the mobile holding of second piston 63.The front end of piston rod 64 and pull rod 41 Rear end is opposite, so as to which when piston rod 64 is when the drive of each piston moves forward, pushing drawing rod 41 moves forward.

Cylinder head cover 61 has the first inlet channel 611, and the outlet of the first inlet channel 611 is opposite with first piston 62, Pressure-air is suitable for entering between cylinder head cover 61 and first piston 62 by the first inlet channel 611, so as to promote the first work Plug 62 moves forward.

Partition plate 65 has the second inlet channel 651, and the outlet of the second inlet channel 651 is opposite with second piston 63, high pressure Air is suitable for entering between partition plate 65 and second piston 63 by the second inlet channel 651, so as to promote second piston 63 forward It is mobile.

Partition plate 65 also has the 3rd inlet channel 652, and the outlet of the 3rd inlet channel 652 is opposite with first piston 62, high Air is pressed to be suitable for through the 3rd air inlet by 652 between partition plates 65 and first piston 62, so as to promote first piston 62 to After move.

Further, the first inlet channel 611 is connected with the air inlet of the second inlet channel 651, so as to which gases at high pressure can First inlet channel 611 and the second inlet channel 651 are passed through by same import.

Partition plate 65 also has the 4th inlet channel 653, and the outlet of the 4th inlet channel 653 is opposite with piston rod 64.It is living Filling in has the 5th inlet channel 641, when piston rod 64 is butted on the rear end of pull rod 41, the 5th inlet channel 641 on connecting rod 64 One end it is opposite with the outlet of the 4th inlet channel 643, the other end of the 5th inlet channel 641 leads to the first air-flow of pull rod 41 Road 411 is opposite.

Further, elastic keeper is equipped between pull rod 41 and shaft core body 31, the rear end of pull rod 41 is being elastically kept The outside of shaft core through hole 310 is maintained under the action of part.When piston rod 64 is in initial position, piston rod 64 is to pull rod 41 Do not apply active force, when piston rod 64 is moved forward with each piston, pushing drawing rod 41 is moved axially forward；Work as piston When connecting rod 64 is moved backward with each piston, pull rod 41 moves backward to initial position under the action of elastic keeper.

Air-cooled component 5 includes aerofoil fan 51, and 51 rotating speed of aerofoil fan is up to 6000 turns, and air output is up to 365m²/h。 Multiple cooling baths on case component 1 are set, the cold wind of aerofoil fan 51 is enable equably to wrap up entire electro spindle surface, is taken away The heat of the generations such as stator module 2, axle core component 3 so as to reach cooling effect, and cools down wind to electro spindle front end, can To blow away the dust and chip that are generated during processing part.

Further, the electro spindle of the utility model further includes control assembly 8, and control assembly 8 is respectively used for integrated control The switch of electric equipment.

Control assembly 8 includes integrated circuit plate 81, approach switch sensor 82, heat-sensitive sensor.Approach switch sensor 82 are arranged on the rear end of axle core component 3, for detecting the rotation of the displacement of the pull rod 41 of axle core component 3 and shaft core body 31. Heat-sensitive sensor is used to detect the real time temperature of electro spindle.

Integrated circuit plate 81 includes approach switch sensor control module, encoder control module, heat-sensitive sensor control Module, aerofoil fan control module, switch button control module.

Approach switch sensor control module is connected with 82 signal of approach switch sensor, when axle core component 3 is in broaching tool State, when unloading knife-like state or rotation status, approach switch sensor 82 sends information to approach switch sensor control module, then Signal is fed back into machine tool control system by integrated circuit plate 81, by the state change of machine tool control system monitoring axle core component 3.

Encoder control module is mainly actual speed when feeding back main axis to machine tool control system in real time, works as rotating speed During generation deviation, the speed of mainshaft is adjusted by machine tool control system.

Heat-sensitive sensor control module to machine tool control system for feeding back electro spindle temperature in real time, when electro spindle temperature is high Alarm is generated when the temperature of setting, and stops electro spindle rotation.

Aerofoil fan control module is used to receive the switching signal of machine tool control system, to control opening for aerofoil fan 51 It closes.

Switch button control module is used to receive the switching signal of machine tool control system, to control the switch of each device, and The signal of an execution is fed back to machine tool control system.

The operation principle that the electro spindle of the utility model replaces cutter head is：High-pressure air source is passed through to the first inlet channel 611, First piston 62 moves forward under the action of high pressure draught, while the second inlet channel 651 is also passed into high pressure gas gas, and second lives Plug 63 moves forward under the action of high pressure draught, piston rod 64 under the action of first piston 62 and second piston 63 forward It is mobile, so as to which pushing drawing rod 41 moves forward；Pull rod 41 drives slide cores 42 to move forward, and pulling claw 43 is shunk, at this time by cutter head 7 connecting pin insertion cutter head connecting cavity 315；Then the high-pressure air source of cut-out input cylinder assembly 6, pull rod 41 is in elastic keeper Under the action of move backward, drive slide cores 42 move backward, pulling claw 43 is expanded, and pulling claw 43 is clamped with cutter head 7 at this time, complete drawing Knife acts.

The electro spindle of the utility model is cooled down using circumscribed aerofoil fan, and different and traditional water coolings is not only met The cooling requirement of electro spindle, and the build up outside such as water-cooled compressor need not be additionally provided, cost is saved, it is special to meet Processing request, such as timber, graphite, fiberboard dust are larger and do not allow the processing of material to get wet.

The electro spindle of the utility model provides a kind of Multifunctional, air cylinder component 6, cannot be only used for driving pull rod 41 and moves It is dynamic, additionally it is possible to realize the function of drifting dust, and contribute to the dismounting of cutter head 7, which overcome the problem of common cylinder function is single. First inlet channel 611 of cylinder assembly 6 and the second inlet channel 651 realize the function that driving pull rod 41 moves；4th air inlet Passage and the 5th inlet channel realize the function of center drifting dust and air curtain sealing.Gases at high pressure are from the first inlet channel 611 and Two inlet channels 651 are flow at first piston 62 and second piston 63, promote first piston 62 and second piston 63 to Forward It is dynamic；First strand of first air-flow that pull rod 41 is flow to from the 4th inlet channel and the 5th inlet channel of other high pressure draught leads to At road 411, drifting dust function is realized, second strand reaches step housing 131 by external tracheae, in electro spindle nose shape It is sealed into air curtain；After gases at high pressure in first inlet channel 611 and the second inlet channel 651 stop input, to the 3rd air inlet Passage 652 is passed through pressure-air, 64 pushed home of first piston 62, second piston 63 and piston rod.

The electro spindle of the utility model provides a kind of drifting dust air-flow of uniqueness：When piston rod 64 is butted on pull rod 41 During rear end, one end of the 5th inlet channel 641 is opposite with the 4th inlet channel 653, and the first air-flow of the other end and pull rod 41 leads to Road 411 is opposite, and high pressure draught enters from the 4th inlet channel 653, flow to the first gas channel 411, then is led to by the second air-flow Road 412 is blown out, and then reaches lower part by the middle part of shaft core body 31；Then air-flow enters axis by the 3rd gas channel 311 The outer wall of core body 31；Then air-flow is used for by the 4th gas channel 312 into the cutter head installation cavity 315 of shaft core body 31 The dust of 31 conical surface of shaft core body is cleaned out；Also fraction enters the 5th gas channel 313, plays auxiliary and unloads knife Effect.

The electro spindle degree of modularity of the utility model is high, and each module can be divided into individual entirety, can individually assemble And dismounting, some module can also be individually replaced, the function without influencing other modules.Especially its convenient disassembly, great Liang Jie Maintenance time is saved.

The above embodiment is only the preferred embodiment of the utility model, it is impossible to be protected with this to limit the utility model Scope, the variation of any unsubstantiality that those skilled in the art is done on the basis of the utility model and replacing belongs to In the utility model scope claimed.

Claims

1. a kind of electro spindle, which is characterized in that including：

Case component forms an installation cavity；

Stator module, in the middle part of the installation cavity；

Axle core component is arranged at the stator module, drives its rotation by the stator module, the axle core component is hollow Structure；

Bit replacing component, including pull rod and pulling claw, the pulling claw is contractably arranged on the front end of the axle core component, is used for One cutter head is detachably held in the front end of the axle core component, the pull rod is axially displaceably arranged on the axle core component Interior, the front end of the pull rod coordinates with the pulling claw, when the pull rod moves axially, the pulling claw is driven to shrink or expand；

Cylinder assembly, arranged on the axle core component rear end, the cylinder assembly is opposite with the rear end of the pull rod, for driving Pull rod movement is stated, the air inlet of the cylinder assembly is connected with the inside of the axle core component, and high pressure draught is suitable for by described Cylinder assembly enters in the axle core component, is finally blown out from the front end of the axle core component；And

Air-cooled component, arranged on the rear end of the case component.

2. electro spindle according to claim 1, which is characterized in that the rear end of the pull rod has gas channel, for inciting somebody to action The air-flow of the back end of tie rod is inducted between the pull rod and the axle core component, and the cylinder assembly has and the pull rod The inlet channel of the gas channel connection of rear end, so as to which high pressure draught can enter the back end of tie rod by the cylinder assembly Gas channel, the forepart of the axle core component have the gas channel of radial direction, for by the pull rod and the axle core component it Between air-flow be inducted between the axle core component and the case component, the front end of the axle core component, which has, tilts extension Gas channel, before the air-flow between the axle core component and the case component is made to blow to inside the axle core component End.

3. electro spindle according to claim 2, which is characterized in that the cylinder assembly include cylinder head cover, first piston, Piston rod and partition plate, the partition plate be arranged on the cylinder head cover in front of, the first piston be arranged on the cylinder head cover with Between the partition plate, described piston rod one end is connected with the first piston, and the other end passes through the partition plate and the pull rod Rear end it is opposite；The cylinder head cover has the first inlet channel, outlet and the first piston of first inlet channel Relatively；The partition plate has the 3rd inlet channel, and the outlet of the 3rd inlet channel is opposite with the first piston；It is described every Plate also has the 4th inlet channel, and the outlet of the 4th inlet channel is opposite with the piston rod；On the piston rod With the 5th inlet channel, when the front end of the piston rod is butted on the pull rod, one end of the 5th inlet channel with The outlet of 4th inlet channel is opposite, and the other end is opposite with the gas channel of the back end of tie rod.

4. electro spindle according to claim 3, which is characterized in that the cylinder assembly further includes second piston, and described Two pistons are arranged on the front of the partition plate, and the second piston is connected with the piston rod, and the partition plate has the second air inlet Passage, the outlet of second inlet channel is opposite with the second piston, the entrance of second inlet channel and described the The entrance connection of one inlet channel.

5. electro spindle according to claim 2, which is characterized in that the axle core component includes shaft core body and around setting It puts in the external rotor of the shaft core sheet, the middle part of the shaft core body forms shaft core through hole, and the pull rod is axially displaceably In the shaft core through hole, elastic keeper is equipped between the pull rod and the shaft core body, when the cylinder assembly is removed When removing the active force to the pull rod, the pull rod resets under the action of the elastic keeper.

6. electro spindle according to claim 5, which is characterized in that there is the first axial air-flow to lead to for the rear end of the pull rod Second gas channel in road and at least one radial direction, second gas channel is connected with first gas channel, described The forepart of shaft core body has at least one the 3rd axial gas channel, and the shaft core body is in the 3rd gas channel Front has at least one the 4th gas channel for tilting extension, and air-flow passes through first gas channel and second gas Circulation road enters between the pull rod and the shaft core body, then enters the shaft core body by the 3rd gas channel Between the case component, then blow to by the 4th gas channel front end of the shaft core body interior.

7. electro spindle according to claim 6, which is characterized in that the shaft core body is before the 4th gas channel End forms cutter head installation cavity, and the connecting pin of cutter head is adapted to mount in the cutter head installation cavity, and the shaft core body also has the Five gas channels, the 5th gas channel extend to the front end face of the shaft core body out of described cutter head installation cavity.

8. electro spindle according to claim 7, which is characterized in that the bit replacing component further includes slide cores and top Core, the plunger tip are arranged on the rear end of the pulling claw, for limiting the movement of the pulling claw axial direction, described slide cores one end with it is described Pull rod connects, and the other end is extended into the pulling claw, and the outer diameter of the slide cores front end is more than the internal diameter of the pulling claw, so as to When the slide cores front end is in the pulling claw, the pulling claw is in expansion state, when the front end of the slide cores is with institute It states pull rod to move forward to when separating with the pulling claw, the pulling claw is shunk.

9. according to any electro spindles of claim 1-8, which is characterized in that the case component include stator mounting portion, Upper bearing portion arranged on the stator mounting portion rear, the bearing portions in front of the stator mounting portion, the stator pack Part is installed on the stator mounting portion, and the middle part of the axle core component passes through the stator module, the rear end of the axle core component The upper bearing portion is installed on, the front end of the axle core component is installed on the bearing portions, and the upper bearing portion is arranged on described In installation cavity, the bearing portions are arranged on outside the installation cavity.

10. according to any electro spindles of claim 1-8, which is characterized in that the electro spindle further include integrated circuit plate, Approach switch sensor and heat-sensitive sensor, the integrated circuit plate are arranged on outside the case component, described to be passed close to switch Sensor is arranged near the pull rod, and for detecting the rotation of the position of the pull rod and the shaft core body, the temperature-sensitive passes Sensor is used to detect temperature in the electro spindle, the integrated circuit plate and the approach switch sensor and the heat-sensitive sensor Device signal connects, and signal is fed back to machine tool control system.