CN211161949U

CN211161949U - High-power high-speed ball electric spindle with high lateral force

Info

Publication number: CN211161949U
Application number: CN201921675550.8U
Authority: CN
Inventors: 陈文生
Original assignee: Dongguan Xianlong Motor Co ltd
Current assignee: Yueyang Xianlong Motor Co ltd
Priority date: 2019-10-09
Filing date: 2019-10-09
Publication date: 2020-08-04
Anticipated expiration: 2029-10-09

Abstract

The utility model relates to a high-power high-speed ball electricity main shaft of high yawing force, including installing the cylinder mechanism on casing body respectively, the back seat mechanism, rotor mechanism, broach mechanism and dustproof mechanism, cylinder mechanism and back seat mechanism install in casing body's wherein one side in proper order, dustproof mechanism installs in casing body's opposite side, rotor mechanism and broach mechanism are installed respectively in casing body, rotor mechanism includes the rotor subassembly, bearing assembly and stator module, the bearing assembly comprises preceding bearing assembly and the back bearing assembly that sets up respectively at rotor assembly both ends, the outside of rotor subassembly is located to the stator module cover, rotor assembly wherein one end is worn to locate in the back seat mechanism, and with cylinder mechanism interconnect with can driving, the other end with broach mechanism interconnect with can driving. The utility model discloses a T20 handle of a knife structure, it is big with the relative frictional force in axle core taper hole, the handle of a knife grips power and rotation torque greatly, and product processing stability and precision are higher.

Description

High-power high-speed ball electric spindle with high lateral force

Technical Field

The utility model relates to an electric main shaft, in particular to a high-power high-speed ball electric main shaft which is applied to the high lateral force of mechanical processing machines such as glass panel processing machines, various light-duty precision engraving and milling machines, light processing centers and the like.

Background

With the rapid development of the 3C industry technology, the shell material of the electronic product shell is gradually evolved from an original plastic injection molding part into an integral metal part, so that the requirements on the surface finish and clear profile of the product shell are higher and higher, and the production efficiency and the product quality are also higher, so that the requirements on the edge milling and polishing spindle motor are more stringent, including higher requirements on the rotating speed and the vibration performance, good running stability of the motor and the like. In the prior art, the electric main shafts of the same type of ball bearings have the characteristic of large torque, and generally have low rotating speed or have large vibration and deflection at high rotating speed; and the common torque with high rotating speed characteristic is relatively small, so that the processing range of the electric spindle is limited. In addition, the clamping tool of the existing electric spindle is generally in a collet type, and the radial constraint and radial rigidity of the clamping tool are small, so that the unbalance of the electric spindle is large, and further, the negative effects of vibration and dynamic deflection are generated, when large-size milling machining is carried out, the radial machining precision and the machining efficiency are difficult to simultaneously guarantee, the axial machining depth is limited, and therefore, the requirement of high-precision forming machining is difficult to meet.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, the utility model aims to provide an electric main shaft, in particular to a high-power high-speed ball electric main shaft which is applied to the high lateral force of mechanical processing machines such as glass panel processing machines, various light-duty precision engraving and milling machines, light processing centers and the like.

Realize above-mentioned purpose, the utility model discloses a technical scheme be: a high-power high-speed ball electric main shaft with high lateral force comprises a cylinder mechanism, a backseat mechanism, a rotor mechanism, a broach mechanism and a dustproof mechanism which are respectively arranged on a shell body, the cylinder mechanism and the backseat mechanism are sequentially arranged on one side of the shell body, the dustproof mechanism is arranged on the other side of the shell body, the rotor mechanism and the broaching mechanism are respectively arranged in the shell body, the rotor mechanism comprises a rotor component, a bearing component and a stator component, the bearing assembly is composed of a front bearing assembly and a rear bearing assembly which are respectively arranged at two ends of the rotor assembly, the stator component is sleeved outside the rotor component, one end of the rotor component is arranged in the backseat mechanism in a penetrating way, and is drivingly interconnected with the cylinder mechanism and is drivingly interconnected at the other end with the broach mechanism.

The rear bearing assembly is arranged in the shell body, the rear bearing assembly is arranged in the rear seat mechanism, the.

The stator assembly comprises a cylindrical stator core and stator winding groups arranged at two ends of the stator core respectively, the stator core is sleeved outside the shaft core and is formed by laminating a plurality of equal-height silicon steel sheets, a rotor magnetic part is arranged in an inner cavity of the stator core, the stator winding groups are formed by winding a plurality of equal-diameter enameled wires, thermistors are arranged in the stator winding groups, the stator winding groups are electrically connected with a three-phase alternating-current power supply through power lines, cast copper short-circuit rings are arranged at two ends of the rotor magnetic part respectively, and the rotor magnetic part and the short-circuit rings are formed by brazing inner inserted copper guide bars.

Wherein, the front bearing assembly is composed of a plurality of front bearings which are mutually stacked in the vertical direction and sleeved at the front end of the shaft core, the rear bearing assembly comprises a plurality of pre-tightening springs, a spring backing ring and a plurality of rear bearings which are respectively arranged in a rear bearing seat, the rear bearing seat is arranged between the rear seat mechanism and the shell body, the rear bearing seat is provided with an installation cavity communicated with the rear seat mechanism, the bottom of the installation cavity is distributed with a plurality of installation blind holes in an array manner, a plurality of pre-tightening springs are correspondingly and respectively clamped in the installation blind holes, the spring backing ring is stacked on the pre-tightening springs, a plurality of rear bearings are mutually stacked on the spring backing ring in the vertical direction and sleeved at the tail end of the shaft core, the front bearing is provided with a front adjusting nut, and the rear bearing is provided with a rear adjusting nut and a gear disc, the front adjusting nut is installed on the dustproof mechanism, the adjusting rear nut is installed on the gear plate, the front bearing and the rear bearing are limited in the shell body and the rear bearing seat correspondingly and respectively through the front adjusting nut and the rear adjusting nut, the front adjusting nut and the rear adjusting nut are provided with a plurality of threaded holes, and the threaded holes are provided with machine screws.

The rear seat mechanism comprises a rear seat body and a photoelectric assembly, the rear seat body is provided with a containing groove, the containing groove is communicated with the installation cavity, the photoelectric assembly comprises an encoder, a locating seat and a plurality of proximity switches, the encoder is installed on the rear bearing seat, the locating seat is arranged on the rear seat body, and the proximity switches are installed in the locating seat respectively.

Wherein, broach mechanism detachably install in the bell mouth of axle core tip, broach mechanism includes clamping jaw subassembly and handle of a knife subassembly, clamping jaw subassembly includes slide core and draw the claw, slide core through internal thread driveably ground with the mutual threaded connection of pull rod, the outside of slide core is provided with the wear-resisting rubber ring of a plurality of, draw the claw to be the outside evenly open claw piece of toper by a plurality of and constitute, the handle of a knife subassembly includes blind rivet, handle of a knife, contracts chew and the nut, the blind rivet with contract chew install respectively in the both ends of handle of a knife, the nut through threaded connection lock solid in having contract chew one side on the handle of a knife, wherein one end of the blind claw through extension spring and pin lock in on the slide core, the other end lock in on the blind rivet.

The air cylinder mechanism comprises an air cylinder top cover, at least one air cylinder separating sheet, fastening screws, a reset spring and an ejector rod, wherein the air cylinder separating sheet is sequentially stacked below the air cylinder top cover, a primary piston is arranged in an inner cavity of the air cylinder top cover, secondary pistons are arranged in inner cavities of the air cylinder separating sheets, O-shaped sealing rings are arranged at the contact positions of the primary piston and the secondary pistons with the side walls of the inner cavities, the primary piston and the secondary pistons are provided with mounting holes with the same axis, the fastening screws are mounted in the mounting holes, one end of the ejector rod is arranged in the air cylinder separating sheet, the other end of the ejector rod is slidably inserted in the rear seat mechanism, the ejector rod abuts against the secondary piston and is in threaded connection with the fastening screws through threads, the ejector rod is provided with an L-shaped ventilation passage, the reset spring is sleeved on the ejector rod, one end of the reset spring abuts against the secondary piston, and the other end of the reset spring abuts against the rear seat mechanism.

The dustproof mechanism comprises a dustproof cover and a dustproof insert arranged in the dustproof cover, the dustproof cover is provided with an axial air inlet hole and a radial air passing hole respectively, the dustproof insert is provided with an annular confluence groove and a plurality of shunting holes, the annular confluence groove is located on the outer wall of the dustproof insert and the outer wall of the dustproof cover matched with the dustproof insert, the shunting holes are uniformly distributed on the inner wall of the dustproof insert along the radial direction, the shunting holes are communicated with the annular confluence groove, and the annular confluence groove is communicated with the axial air inlet hole and the radial air passing hole respectively.

The dust blowing device comprises a pull rod, a dust blowing hole, a sensing portion and a linking portion, wherein the dust blowing hole is formed in the center of the pull rod in a penetrating mode, the sensing portion is arranged at one end of the pull rod in an integrated mode, the linking portion is arranged at the other end of the pull rod in an integrated mode, the sensing portion penetrates through the backseat mechanism in an extending mode, the pull rod is made to be detected through a photoelectric assembly to obtain position information feedback, and the linking portion is detachably connected with the broach mechanism.

The cooling mechanism comprises a water inlet, a water outlet and a plurality of cooling runners communicated with each other, and the cooling runners are bent for multiple times in an S shape and distributed on the shell body in an array manner.

The utility model has the advantages of the utility model aims at providing a high-power high-speed ball electricity main shaft of high yawing force, adopt neotype T20 handle of a knife structure, the outer taper angle of handle of a knife is less, the relative friction with axle core taper hole is big, the handle of a knife gripping power and rotation torque increase, product processing stability and machining precision are higher, dispose built-in encoder and the response proximity switch who is connected with P L C control center simultaneously, realize functions such as automatic tool changing and accurate stop in the twinkling of an eye, can collect the gong board, drilling and tapping are in an organic whole, can not only bore hole tapping when the low speed, can also carry out mirror finishing when high speed, possess multiple processing performance simultaneously, strong practicality and economic nature, secondly, adopt large-torque copper squirrel cage rotor formula motor, make this main shaft compare the main shaft of the same kind under the same rotational speed, have higher torque, and rotor magnetic force spare adopts tip copper ring connection, the structure that inside copper conducting strip alternates brazed, the electric conductivity of copper is superior to aluminium, the total loss of motor has been reduced, the heat energy that its motor operation produced reduces, the temperature and the working temperature of the magnetic force greatly reduces, the high-speed of the high-speed electric bearing, the high-speed of the high-speed bearing, the high-speed bearing can be reduced the high-speed bearing, the high-speed rotation stability of the high-speed rotation of the high-speed bearing, the high-speed bearing of.

Drawings

Fig. 1 is a sectional view of the whole internal structure of the handle-type electric spindle of the present invention.

Fig. 2 is a schematic structural view of the knife-handle type electric spindle photoelectric assembly of the present invention.

Fig. 3 is a schematic structural view of the present invention of the handle-type electric spindle rotor assembly.

Fig. 4 is a schematic structural view of the knife-handle electric spindle cylinder mechanism of the present invention.

Fig. 5 is a schematic structural view of the handle-type electric spindle dust-proof assembly of the present invention.

Reference is made to the accompanying drawings in which:

1-a housing body; 2-a cylinder mechanism; 3-a rear seat mechanism; 4-a rotor mechanism; 5-a broach mechanism; 6, a dustproof mechanism; 7-a rotor assembly; 8-a bearing assembly; 9-a stator assembly; 10-a front bearing assembly; 11-a rear bearing assembly; 12-an axial core; 13-a pull rod; 14-a resilient element; 15-a sliding sleeve; 16-a gasket; 17-a stator core; 18-stator winding groups; 19-rotor magnetic force element; 20-short circuit ring; 21-a front bearing; 22-rear bearing seat; 23-pre-tightening the spring; 24-a spring grommet; 25-a rear bearing; 26-a mounting cavity; 27-installing blind holes; 28-front adjusting nut; 29-rear adjusting nut; 30-a threaded hole; 31-machine meter screw; 32-a rear seat body; 33-an optoelectronic component; 34-a receiving groove; 35-an encoder; 36-positioning seats; 37-a proximity switch; 38-a tapered hole; 39-a jaw assembly; 40-a tool shank assembly; 41-sliding core; 42-pulling the claw; 43-wear resistant rubber ring; 44-a blind rivet; 45-knife handle; 46-reducing mouth; 47-screw cap; 48-a tension spring; 49-cylinder head cover; 50-cylinder spacers; 51-a fastening screw; 52-a return spring; 53-a mandril; 54-primary piston; 55-a secondary piston; 56-mounting holes; 57-a ventilation aisle; 58-dust cover; 59-dustproof inserts; 60-axial air intake; 61-radial air passing holes; 62-an annular confluence groove; 63-a shunt hole; 64-dust blowing holes; 65-a sensing part; 66-an engagement portion; 67-front waterway cover; 68-a gear plate; 69-sealing ring.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings:

as shown in fig. 1-5, a high-power high-speed ball electric spindle with high lateral force comprises an air cylinder mechanism 2, a backseat mechanism 3, a rotor mechanism 4, a broach mechanism 5 and a dustproof mechanism 6 which are respectively installed on a housing body 1, wherein the air cylinder mechanism 2 and the backseat mechanism 3 are sequentially installed on one side of the housing body 1, the dustproof mechanism 6 is installed on the other side of the housing body 1, the rotor mechanism 4 and the broach mechanism 5 are respectively installed in the housing body 1, the rotor mechanism 4 comprises a rotor assembly 7, a bearing assembly 8 and a stator assembly 9, the bearing assembly 8 is composed of a front bearing assembly 10 and a rear bearing assembly 11 which are respectively installed at two ends of the rotor assembly 7, the stator assembly 9 is sleeved outside the rotor assembly 7, one end of the rotor assembly 7 is inserted into the backseat mechanism 3, and is drivingly interconnected with said cylinder mechanism 2 and at the other end with said broach mechanism 5.

Wherein, the rotor assembly 7 includes a shaft core 12, a pull rod 13 and an elastic element 14, the shaft core 12 is rotatably disposed in the housing body 1 with a central shaft, the pull rod 13 is mounted in the shaft core 12, one end of the pull rod 13 passes through the rear bearing assembly 11 and extends into the rear seat mechanism 3, the other end is in transmission connection with the broach mechanism 5, the elastic element 14 is sleeved on the pull rod 13 and is mounted between the rear end of the pull rod 13 and the inner end face of the shaft core 12, the elastic element 14 is composed of a plurality of disc springs, the middle part of the elastic element 14 is provided with a sliding sleeve 15 with an axis, the end of the elastic element 14 is provided with a gasket 16 fixed in the shaft core 12, the gasket 16 supports the elastic element 14 by relying on the inner wall step of the shaft core 12, the stator assembly 9 is disposed outside the shaft core 12, and is located between the front bearing assembly 10 and the rear bearing assembly 11.

The stator assembly 9 includes a cylindrical stator core 17 and stator winding groups 18 respectively disposed at two ends of the stator core 17, the stator core 17 is sleeved outside the shaft core 12, the stator core 17 is formed by laminating a plurality of equal-height silicon steel sheets, a rotor magnetic member 19 is disposed in an inner cavity of the stator core, the stator winding group 18 is formed by winding a plurality of equal-diameter enameled wires, a thermistor is disposed in the stator winding group 18, the stator winding group 18 is electrically connected with a three-phase alternating-current power supply through a power line, two ends of the rotor magnetic member 19 are respectively provided with a cast copper short-circuit ring 20, and the rotor magnetic member 19 and the short-circuit ring 20 are formed by mutually brazing internal inserted copper guide bars.

Wherein, the front bearing assembly 10 is composed of a plurality of front bearings 21 which are mutually stacked in the vertical direction and sleeved at the front end of the shaft core 12, the rear bearing assembly 11 comprises a plurality of pre-tightening springs 23, spring cushion rings 24 and a plurality of rear bearings 25 which are respectively arranged in rear bearing 25 seats 22, the rear bearing 25 seats 22 are arranged between the rear seat mechanism and the shell body, the rear bearing 25 seats 22 are provided with installation cavities 26 communicated with the rear seat mechanism 3, the bottom of the installation cavities 26 is distributed with a plurality of installation blind holes 27 in an array manner, a plurality of pre-tightening springs 23 are correspondingly and respectively clamped in the installation blind holes 27, the ball bearings are axially and dynamically pre-tightened through the pre-tightening springs 23, the spring cushion rings are stacked on the pre-tightening springs 23, a plurality of rear bearings 25 are mutually stacked on the spring cushion rings 24 in the vertical direction, and the sleeve is located the end of axle core 12, preceding bearing 21 is provided with preceding adjusting nut 28, rear bearing 25 is provided with back adjusting nut 29 and toothed disc 68, preceding adjusting nut 28 is installed on dustproof mechanism 6, adjust rear nut 29 install in on toothed disc 68, through preceding adjusting nut 28 with back adjusting nut 29 with a plurality of preceding bearing 21 and a plurality of rear bearing 25 is injectd respectively in casing body 1 and correspondingly in rear bearing seat 22, preceding adjusting nut 28 with back adjusting nut 29 all is provided with a plurality of screw hole 30, a plurality of all be provided with machine meter screw 31 in the screw hole 30, adjust the dynamic balance of main shaft through machine meter screw 31.

The rear seat mechanism 3 comprises a rear seat body 32 and a photoelectric assembly 33, the rear seat body 32 is provided with an accommodating groove 34, the accommodating groove 34 is communicated with the mounting cavity 26, the photoelectric assembly 33 comprises an encoder 35, a positioning seat 36 and a plurality of proximity switches 37, the encoder 35 is installed on the rear bearing 25 seat 22, the positioning seat 36 is arranged on the rear seat body 32, and the proximity switches 37 are respectively installed in the positioning seat 36.

Wherein, broach mechanism 5 detachably installs in the bell mouth 38 of arbor 12 tip, broach mechanism 5 includes clamping jaw subassembly 39 and handle of a knife subassembly 40, clamping jaw subassembly 39 includes slip core 41 and draw claw 42, slip core 41 through the internal thread can drive with pull rod 13 mutual threaded connection, and along with pull rod 13 synchronous revolution, the outside of slip core 41 is provided with a plurality of wear-resisting rubber ring 43, draw claw 42 is by a plurality of be the toper outwards evenly open the claw piece constitute, handle of a knife subassembly 40 includes blind rivet 44, handle of a knife 45, mouth 46 and nut 47 of contracting, blind rivet 44 with the mouth 46 of contracting is installed respectively in the both ends of handle of a knife 45, nut 47 through threaded connection lock solid in have the mouth 46 one side of contracting on the handle of a knife 45, one end wherein of draw claw 42 through extension spring 48 and pin lock connect in on slip core 41, the other end is fastened on the blind rivet 44, and the shank 45 is optimally but not limited to a small taper shank 45 with the taper of 10 degrees.

The air cylinder mechanism comprises an air cylinder top cover 49, at least one air cylinder separating sheet 50, fastening screws 51, a return spring 52 and ejector rods 53, wherein the air cylinder separating sheets 50 are sequentially stacked below the air cylinder top cover 49, a primary piston 54 is arranged in an inner cavity of the air cylinder top cover 49, secondary pistons 55 are arranged in inner cavities of the air cylinder separating sheets 50, O-shaped sealing rings 69 are arranged at contact positions of the primary piston 54 and the secondary pistons 55 and side walls of the inner cavities, mounting holes 56 with the same axis are formed in the primary piston 54 and the secondary pistons 55, the fastening screws 51 are mounted in the mounting holes 56, one end of each ejector rod 53 is arranged in the air cylinder separating sheet 50, the other end of each ejector rod is slidably inserted in the rear seat mechanism 3, the ejector rod 53 abuts against the secondary piston 55 and is in threaded connection with the fastening screws 51 through threads, an L-shaped ventilation passageway 57 is arranged in the ejector rod 53, the return spring 52 is sleeved on the ejector rod 53, one end of the return spring 52 abuts against the secondary piston 55, and the other end of the rear seat mechanism 3.

The cylinder top cover 49 is provided with a cooling interface, a dust blowing air pressure interface, a front end air curtain air pressure interface, a cylinder resetting air pressure interface, a sensor interface, an encoder 35 interface and a coil main line interface for cooling respectively.

The dustproof mechanism 6 comprises a dustproof cover 58 and a dustproof insert 59 arranged in the dustproof cover 58, the dustproof cover 58 is provided with an axial air inlet 60 and a radial air passing hole 61 respectively, the dustproof insert 59 is provided with an annular confluence groove 62 and a plurality of branch holes 63, the annular confluence groove 62 is located on the outer wall of the dustproof insert 59 matched with the dustproof cover 58, the plurality of branch holes 63 are uniformly distributed on the inner wall of the dustproof insert 59 along the radial direction, the plurality of branch holes 63 are communicated with the annular confluence groove 62, and the annular confluence groove 62 is communicated with the axial air inlet 60 and the radial air passing hole 61 respectively.

The center of the pull rod 13 is provided with a through dust blowing hole 64, one end of the pull rod 13 is integrally provided with a sensing part 65, the other end of the pull rod 13 is integrally provided with a linking part 66, the sensing part 65 is extendedly arranged in the backseat mechanism 3 in a penetrating way, so that the pull rod 13 is detected by the photoelectric component 33 to obtain position information feedback, and the linking part 66 is detachably connected with the broach mechanism 5.

Wherein, casing body 1 is provided with preceding water route lid 67 and cooling body, preceding water route lid 67 install in casing body 1' S port department, cooling body comprises water inlet, delivery port and the mutual cooling channel that communicates of a plurality of, cooling channel is the S type and buckles many times and distribute in array on the casing body.

The utility model relates to a high-power high-speed ball electricity main shaft of high yawing force, shield 58 is installed in the front end of object body, adjusting nut 29 passes through screw-thread fit and installs both ends around axle core 12, many dentate joint structure are constituteed with shield 58 to its front end adjusting nut 29, in operation, compressed high-pressure air lets in from cylinder top cap 49, top-down passes through back seat body 32 respectively, in each axial or radial runner of back bearing 25 seat 22 and casing body 1, and then enter into shield 58 and dustproof mold insert 59 complex annular converging groove 62, spout through dustproof mold insert 59 each diffluence hole 63 at last, form malleation air curtain protection, prevent the outer debris of organism, entering such as sewage and cutting bits, the normal work of protection main shaft.

Secondly, the cooling liquid is introduced into the cylinder top cover 49 and flows into the shell body from top to bottom, and then enters the cooling liquid circulating flow channel which is bent for multiple times in an S shape and is communicated with each other, so as to form a closed cooling circulation.

When the utility model changes tools, compressed high pressure air is connected from the air inlet of the cylinder top cover 49, the compressed air enters each cavity in turn through the air groove to form air pressure and generate multilayer power, so that the primary piston 54 and the secondary piston 55 in each cavity push the ejector rod 53, the pull rod 13 and the pulling claw 42 connected on the pull rod 13 to move down in turn, meanwhile, the elastic element 14 starts to compress under the pressure of the pull rod 13, along with the gradual downward movement of the pull rod 13, each claw of the pulling claw 42 is uniformly opened in a conical shape until the pulling claw 42 is separated from the inner wall of the shaft core 12 and is freely opened, the tool handle 45 is disassembled, a new tool handle 45 is automatically replaced, after the tool handle 45 is replaced, the tool opening air source is closed, the air cylinder return air source is opened at the same time, the pull rod 13 moves back up with the pulling claw 42 under the reaction force of the free extension of the elastic element 14, the pulling claw 42 is limited by the inner wall of the shaft core 12 step and is gradually contracted, until the pull claw 42 automatically adjusts to be balanced so as to tighten the knife handle 45. At this time, the cylinder mechanism 2 is urged to return by the force of the external air source and the resilient force of the return spring 52.

Furthermore, the utility model discloses be provided with one-way dust blowing handle of a knife clean system, component and back seat body 32 in the cylinder mechanism 2 all are provided with the gas pocket, ejector pin 53 is provided with "L" type passageway 57 of ventilating, pull rod 13 is inside to be provided with blows dirt hole 64, when the main shaft tool changing, ejector pin 53 moves forward, its preceding terminal surface and the contact of pull rod 13 rear end face, thereby make back seat body 32, ejector pin 53 and pull rod 13 three's the via hole of ventilating intercommunication each other, compressed air gets into from top cylinder top cap 49, it crosses the gas pocket to flow in pull rod 13 through the via hole of ventilating, spout to handle of a knife 45 by blowing dirt hole 64 again, it is clean to carry out the air to handle of a knife 45, can prevent inside external debris or the sewage entering main shaft, guarantee that the main shaft can work for a long.

In the working process, the actual temperature of the main shaft during working can be monitored in real time through the temperature measuring sensor arranged in the coil, so that the normal working of the electric main shaft is effectively protected, the whole shaft adopts a dynamic balance adjustable design, the dynamic balance adjustment can be carried out through the adjusting nuts 29 arranged at the front end and the rear end of the main shaft after the main shaft is assembled besides the adjustable balance of the rotor monomer, and the adjustment is convenient and quick.

The above, it is only the preferred embodiment of the present invention, not right the technical scope of the present invention makes any restriction, the technical personnel of the industry, under this technical scheme's enlightenment, can do some deformation and modification, all the basis the utility model discloses a technical essence is to any modification, the equivalent change and the modification of the above embodiment do, all still belong to the technical scheme's scope of the present invention.

Claims

1. The utility model provides a high-power high-speed ball electricity main shaft of high yawing force which characterized in that: including installing cylinder mechanism, back seat mechanism, rotor mechanism, broach mechanism and dustproof mechanism on casing body respectively, cylinder mechanism with back seat mechanism install in proper order in one of them one side of casing body, dustproof mechanism install in the opposite side of casing body, rotor mechanism with broach mechanism install respectively in the casing body, rotor mechanism includes rotor subassembly, bearing subassembly and stator module, the bearing subassembly by set up respectively in the preceding bearing subassembly and the back bearing subassembly at rotor subassembly both ends are constituteed, the stator module cover is located the outside of rotor subassembly, one of them end of rotor subassembly is worn to locate in the back seat mechanism, and with but cylinder mechanism interconnect with broach mechanism interconnect with can drive.

2. The high-power high-speed ball electric spindle with high lateral force as claimed in claim 1, wherein: the rotor assembly comprises a shaft core, a pull rod and an elastic element, the shaft core can be rotatably arranged in the shell body through a central shaft, the pull rod is arranged in the shaft core, one end of the pull rod penetrates through the rear bearing assembly to extend into the backseat mechanism, the other end of the pull rod is in transmission connection with the broach mechanism, the elastic element is sleeved on the pull rod and is arranged between the rear end part of the pull rod and the inner end face of the shaft core, the elastic element is composed of a plurality of disc springs, the middle part of the elastic element is provided with a sliding sleeve of an axis, the end part of the elastic element is provided with a gasket fixed in the shaft core, and the stator assembly is arranged on the outer side of the shaft core and is positioned between the front bearing assembly and the rear bearing assembly.

3. The high-power high-speed ball electric spindle with high lateral force as claimed in claim 2, wherein: stator module including be the tube-shape stator core with set up respectively in the stator winding group at stator core both ends, the stator core cover is located the outside of axle core, stator core is formed by the high silicon steel sheet stack of a plurality of height, be provided with rotor magnetic force spare in the stator core inner chamber, stator winding group is formed by the winding of a plurality of isometric enameled wires, be provided with thermistor in the stator winding group, stator winding group passes through power cord and three-phase alternating current power electric connection, the both ends of rotor magnetic force spare are provided with cast copper short circuit ring respectively, rotor magnetic force spare with the short circuit ring is through the shaping of brazing each other of inside grafting copper conducting strip.

4. The high-power high-speed ball electric spindle with high lateral force as claimed in claim 3, wherein: the front bearing assembly consists of a plurality of front bearings which are mutually stacked in the vertical direction and sleeved at the front end of the shaft core, the rear bearing assembly comprises a plurality of pre-tightening springs, spring backing rings and a plurality of rear bearings which are respectively arranged in rear bearing seats, the rear bearing seats are arranged between the rear seat mechanism and the shell body, the rear bearing seats are provided with installation cavities communicated with the rear seat mechanism, a plurality of installation blind holes are distributed at the bottom of the installation cavities in an array manner, the pre-tightening springs are correspondingly and respectively clamped in the installation blind holes, the spring backing rings are stacked on the pre-tightening springs, the rear bearings are mutually stacked on the spring backing rings in the vertical direction and sleeved at the tail end of the shaft core, the front bearings are provided with front adjusting nuts, and the rear bearings are provided with rear adjusting nuts and gear discs, the front adjusting nut is installed on the dustproof mechanism, the adjusting rear nut is installed on the gear plate, the front bearing and the rear bearing are limited in the shell body and the rear bearing seat correspondingly and respectively through the front adjusting nut and the rear adjusting nut, the front adjusting nut and the rear adjusting nut are provided with a plurality of threaded holes, and the threaded holes are provided with machine screws.

5. The high-power high-speed ball electric spindle with high lateral force as claimed in claim 4, wherein: the backseat mechanism comprises a backseat body and a photoelectric assembly, the backseat body is provided with a containing groove, the containing groove is communicated with the installation cavity, the photoelectric assembly comprises an encoder, a locating seat and a plurality of proximity switches, the encoder is installed on the backseat, the locating seat is arranged on the backseat body, and the proximity switches are installed in the locating seat respectively.

6. The high-power high-speed ball electric spindle with high lateral force as claimed in claim 2, wherein: broach mechanism detachably install in the bell mouth of axle core tip, broach mechanism includes clamping jaw subassembly and handle of a knife subassembly, the clamping jaw subassembly includes slide core and draw claw, slide core through the internal thread can with the mutual threaded connection of pull rod, the outside of slide core is provided with the wear-resisting ring of a plurality of, draw claw is the outside evenly open claw piece of toper by a plurality of and constitutes, the handle of a knife subassembly includes blind rivet, handle of a knife, contracts to chew and the nut, the blind rivet with contract to chew install respectively in the both ends of handle of a knife, the nut through threaded connection lock admittedly in having contract chew one side on the handle of a knife, wherein one end of the blind claw through extension spring and pin lock in on the slide core, the other end lock in on the blind rivet.

7. The high-power high-speed ball electric spindle with high lateral force as claimed in claim 1, wherein the cylinder mechanism comprises a cylinder top cover, at least one cylinder spacer, a fastening screw, a return spring and a push rod, the cylinder spacer is sequentially stacked below the cylinder top cover, a primary piston is arranged in an inner cavity of the cylinder top cover, secondary pistons are arranged in inner cavities of the cylinder spacer, O-shaped sealing rings are arranged at contact positions of the primary piston and the secondary pistons with side walls of the inner cavities, mounting holes with the same axis are formed in the primary piston and the secondary piston, the fastening screw is mounted in the mounting holes, one end of the push rod is arranged in the cylinder spacer, the other end of the push rod is slidably inserted in the rear seat mechanism, the push rod abuts against the secondary piston and is in threaded connection with the fastening screw through threads, the push rod is provided with an L-shaped ventilation passage, the return spring is sleeved on the push rod, one end of the return spring abuts against the secondary piston, and the other end of the rear seat mechanism.

8. The high-power high-speed ball electric spindle with high lateral force as claimed in claim 1, wherein: the dustproof mechanism comprises a dustproof cover and a dustproof insert arranged in the dustproof cover, the dustproof cover is respectively provided with an axial air inlet hole and a radial air passing hole, the dustproof insert is provided with an annular converging groove and a plurality of shunting holes, the annular converging groove is located on the outer wall of the dustproof insert and the outer wall of the dustproof cover, the shunting holes are uniformly distributed on the inner wall of the dustproof insert along the radial direction, the shunting holes are communicated with the annular converging groove, and the annular converging groove is respectively communicated with the axial air inlet hole and the radial air passing hole.

9. The high-power high-speed ball electric spindle with high lateral force as claimed in claim 2, wherein: the pull rod center is provided with the dust blowing hole that link up, wherein one end integrated into one piece ground of pull rod is provided with induction portion, and the other end integrated into one piece ground is provided with linking portion, induction portion wears to locate with extending among the back seat mechanism, makes the pull rod realizes detecting by photoelectric component and obtains the position information feedback, linking portion with broach mechanism is interconnect dismantled and assembled.

10. The high-power high-speed ball electric spindle with high lateral force as claimed in claim 1, wherein: the casing body is provided with preceding water route lid and cooling body, preceding water route lid install in the port department of casing body, cooling body comprises water inlet, delivery port and the mutual cooling flow channel that communicates of a plurality of, cooling flow channel is S type and buckles many times and distribute in array on the casing body.