CN209465699U - A kind of electro spindle facilitating installation - Google Patents

Abstract

The utility model provides a kind of electro spindle for facilitating installation, including the spindle assemblies being mounted on spindle box and the motor being mounted on rear side of spindle assemblies；It further include retaining ring；The axle center that the spindle assemblies include main shaft shell and are mounted in main shaft shell by rolling bearing；The front end of the main shaft shell is equipped with the forward flange being fixedly connected with spindle box；The retaining ring is detachably locked at the outside of main shaft shell rear end and is fixed on spindle box；There is rear end cap with motor housing and rear side on the outside of the motor；The outer diameter of the motor housing is less than or equal to the outer diameter of main shaft shell；The motor housing is fixed by screws with main shaft shell；Embody the utility model have it is easy for installation, length is short, the high advantage of stability.

Description

A kind of electro spindle facilitating installation

Technical field

The utility model relates to electro spindle technical field, in particular to a kind of electro spindle easy for installation.

Background technique

With the development of science and technology the development of machine tool chief axis is also getting faster, it include three kinds of modes, the first is traditional machine Tool main shaft, but have the disadvantage in that 1, complicated in mechanical structure, occupied space is big；2, vibration is big, precision is low；3, belt-type machine Tool drive mechanism kinetic energy rejection is big, and energy consumption is high；4, asynchronous machine torque is small, cannot achieve slow-speed of revolution roughing feed.Second is interior Concealed electro spindle, have the disadvantage in that 1, rotor it is built-in structure is complicated, manufacturing cost is high；2, sealing difficulty is big, calorific value Greatly, heat dissipation is difficult；3, the low torsion of high revolving speed, the scope of application is small, and restraint of trade is big.The third is tail placing type electro spindle, the structure It has the advantage that the adjustment range is small for 1, original structure, switches straight drive simply；2, there are prepackage interface, the direct flanges of stator for motor Centering is fixed, rotor installation form diversification, can be with expanding cover locking, screw-threaded coupling, locking nut locking installation；3, motor is separate Spindle processing end, thermally conductive heat influence small, it is easier to guarantee or improve product degree of finish；4, motor flattening designs, axial It occupies little space, more conducively guarantee one-piece rotor shaft structural rigidity.Therefore preferred tail placing type electric main shaft structure, but postposition of today There is also following disadvantages for formula electro spindle: 1, the power that motor is selected in electro spindle is matched according to actual needs, and with Toward powerful motor or low power motor is either used, mounting means is all to be connected by flange with main shaft housing It connects, therefore when being assembled, the main shaft that producer produces can not be assembled directly with motor, and need actually to make Used time first pierces into spindle unit in spindle box from front side, is fixedly connected by the flange of spindle front with spindle box, then again It can not integrally be sold on rear side of the component assemblings such as motor to main shaft, therefore after producer's production, assembly is complicated；2, outside motor Shell is connect with main shaft shell by ring flange, and encoder is mounted in ring flange, will increase the entire length of electro spindle in this way, and The length of electro spindle is shorter, and stability is higher；3, it with the electro spindle of brake structure, is reserved between brake disc and motor housing The installation space of brake shoes, therefore also will increase the entire length of electro spindle；Therefore it also needs to improve.

Utility model content

The purpose of the utility model is to provide one kind for selecting low-power machine easy for installation, and length is short, and stability is high Electro spindle.

To achieve the goals above, the utility model provides the following technical solutions:

A kind of electro spindle facilitating installation including the spindle assemblies being mounted on spindle box and is mounted on rear side of spindle assemblies Motor；It further include retaining ring；The spindle assemblies include main shaft shell and are mounted in main shaft shell by rolling bearing Axle center；The front end of the main shaft shell is equipped with the forward flange being fixedly connected with spindle box；The retaining ring is removably locked Main shaft shell rear end outside and be fixed on spindle box；There is rear end with motor housing and rear side on the outside of the motor Lid；The outer diameter of the motor housing is less than or equal to the outer diameter of main shaft shell；The motor housing and main shaft shell pass through screw It is fixedly connected.

The utility model is further described, there is encoder on the motor；The rear end cap is equipped with encoder Installation position；The encoder is mounted on encoder installation position.

The utility model is further described, further includes brake assemblies；Extend on rear side of motor the axle center rear end；Institute Stating brake assemblies includes axle sleeve, brake disc, back mother and damping brake shoes；The outer diameter of the axle sleeve is less than the outer diameter of motor housing； The axle sleeve is fixedly connected on axle center rear end by keyway；The back is female be fitted on axle center with axle center by screw thread pair and It contacts in axle sleeve rear end；The brake disc is the outer diameter that two-piece type and its outer diameter are greater than motor housing；The brake disc passes through spiral shell Silk is fixed on axle sleeve；The damping brake shoes is fixed on the cooperation of the periphery on spindle box and with brake disc.

The utility model is further described, there is notch to form inc ring structure for the retaining ring side； The axial direction of the retaining ring is equipped with the screw installing hole being coupled with spindle box；The retaining ring is in the radial direction The notch two sides of retaining ring are locked by screw.

The utility model is further described, the outer diameter of the motor housing is equal to the outer diameter of main shaft shell.

The utility model has the following beneficial effects:

The utility model using low-power machine for being designed, its size of low power motor is smaller, motor housing Outer diameter be less than or equal to main shaft shell outer diameter, and motor housing is directly fixed by screws in main shaft shell, When assembly, main shaft shell and motor housing can be locked assembling motor in spindle assemblies rear end by screw, then will Axle sleeve on brake assemblies is also assembled with back mother, is assembled when on spindle drum by electro spindle, directly will be above-mentioned assembled Component pierces into spindle drum on front side of spindle drum, then forward flange and spindle drum is locked by screw, then pass through locking Main shaft shell rear end is locked and is fixed on main shaft base rear end by set, and brake disc and damping brake shoes are finally mounted on corresponding positions again Assembly can be completed in the place of setting, and most assembly, great Liang Jie can be can be completed after producer produces electro spindle by changing assembly method The time that electro spindle is mounted on spindle box is saved, and since motor housing is directly fixed by screws in main shaft shell, The length for saving previous excessively flange, improves stability, encoder is mounted on the rear end cap of motor, facilitates maintenance；It will The outer diameter setting of brake disc is greater than the outer diameter of motor housing, to be not required to reserved damping brake shoes between motor housing and brake disc Placement space, can shorten the length of electro spindle, improve stability.

Detailed description of the invention

Fig. 1 is the overall structure figure of the utility model；

Fig. 2 is the structure chart that the utility model is mounted on spindle box.

Specific embodiment

The utility model is further described below in conjunction with attached drawing:

As shown in Figs. 1-2, a kind of electro spindle facilitating installation, including the spindle assemblies 1 being mounted on spindle box 5 and installation In the motor 2 of 1 rear side of spindle assemblies；It further include retaining ring 3；The spindle assemblies 1 are including main shaft shell 11 and pass through rolling Bearing is mounted on the axle center 12 in main shaft shell 11；The front end of the main shaft shell 11 with spindle box 5 equipped with before being fixedly connected Flange 111；The retaining ring 3 is detachably locked at the outside of 11 rear end of main shaft shell and is fixed on spindle box 5；The electricity There is rear end cap 22 with motor housing 21 and rear side on the outside of machine 2；The outer diameter of the motor housing 21 is less than or equal to main shaft The outer diameter of shell 11；The motor housing 21 is fixed by screws with main shaft shell 11；Have laterally on motor housing 21 The counterbore of perforation, 11 rear end of main shaft shell have screw hole corresponding with counterbore, and screw is mounted in counterbore is locked at screw hole again The middle connection for completing motor housing 21 and main shaft shell 11, motor 2 is using low-power machine 2, motor housing in the design 21 outer diameter is set as identical as the outer diameter of main shaft shell 11, so as to first assemble motor 2 and spindle assemblies 1, is inciting somebody to action When electro spindle is assemblied in spindle box 5, assembled component is pierced into spindle drum on front side of spindle drum directly, then passes through spiral shell Forward flange 111 is locked by silk with spindle drum, then locks 11 rear end of main shaft shell by lock sleeve and be fixed on spindle drum Rear end just completes to assemble, and assembles more convenient.

There is encoder 23 on the motor 2；The rear end cap 22 is equipped with the installation position of encoder 23；The encoder 23 are mounted on 23 installation position of encoder；Encoder 23 uses exhausted magnetic material, directly exposed to be mounted on 2 rear side of motor, works as coding When device 23 breaks down, can directly the disassembly of encoder 23 be repaired and be detected, it is easy to maintenance, without dismantling excessive zero Part.

It further include brake assemblies 4；Extend 2 rear side of motor in 12 rear end of axle center；The brake assemblies 4 include axle sleeve 41, brake disc 42, back mother 43 and damping brake shoes 44；The outer diameter of the axle sleeve 41 is less than the outer diameter of motor housing 21；The axis Set 41 is fixedly connected on 12 rear end of axle center by keyway；The back mother 43 is fitted to axle center 12 by screw thread pair with axle center 12 Above and contact in 41 rear end of axle sleeve；The brake disc 42 is the outer diameter that two-piece type and its outer diameter are greater than motor housing 21；The brake Hull 42 is fixed by screws on axle sleeve 41；The damping brake shoes 44 is fixed on outer on spindle box 5 and with brake disc 42 Zhou Peihe；Increase brake assemblies 4, controlled by control device fueller come to damping 44 fuel feeding of brake shoes, thus sharp It is tight stop to brake disc 42 with damping brake shoes 44, so as to the mandrel heart 12 of quickly stopping, prevent axle center 12 since inertia is held Axle sleeve 41 and back mother 43 are first mounted on axle center 12 by continuous rotation in assembly, after being assembled on spindle box 5, then by two panels The brake disc 42 of formula is locked on axle sleeve 41, and damping brake shoes 44 is mounted on spindle box 5, is completed assembly, is being dispatched from the factory The assembly that part can be completed when assembly, reduces the time being mounted on spindle box 5.

There is notch 31 to form inc ring structure for 3 side of retaining ring；On the axial direction of the retaining ring 3 Equipped with the screw installing hole 32 being coupled with spindle box 5；The retaining ring 3 passes through screw for retaining ring 3 in the radial direction 31 two sides of notch locking；The two sides of 3 notch 31 of retaining ring, wherein side has radial screw hole, and the other side has and radial direction The corresponding radial screw hole of screw hole, when electro spindle is mounted on spindle box 5, is mounted in radial screw hole by screw and is locked at In radial screw hole, locking force passes through screw installing hole 32 without too greatly, preventing 11 compressive strain of main shaft shell, then by screw Retaining ring 3 is locked on spindle box 5, the installation of electro spindle and spindle box 5 is completed；A kind of retaining ring 3 is provided in the design Structure, but it's not limited to that for the structure of retaining ring 3, and the locking mode of screw-type also can be used, and uses spiral shell with electro spindle Line cooperation is fixed；Inner ring can also be added inside the retaining ring 3 of the design with groove cooperation is arranged in main shaft shell 11 to mention The modes such as high stability are fixed.The above not imposes any restrictions the technical scope of the utility model, all practical according to this New technique essence still falls within the technology of the utility model to any modification, equivalent variations and modification made by above embodiment In the range of scheme.

Claims (5)

1. a kind of electro spindle for facilitating installation including the spindle assemblies being mounted on spindle box and is mounted on rear side of spindle assemblies Motor；It is characterized by also including retaining rings；The spindle assemblies include main shaft shell and are mounted on master by rolling bearing Axle center in shaft housing；The front end of the main shaft shell is equipped with the forward flange being fixedly connected with spindle box；The retaining ring is removable It is locked at the outside of main shaft shell rear end with unloading and is fixed on spindle box；There is motor housing and rear side on the outside of the motor With rear end cap；The outer diameter of the motor housing is less than or equal to the outer diameter of main shaft shell；The motor housing and main shaft shell It is fixed by screws.

2. a kind of electro spindle for facilitating installation according to claim 1, it is characterised in that: have coding on the motor Device；The rear end cap is equipped with the installation position of encoder；The encoder is mounted on encoder installation position.

3. a kind of electro spindle for facilitating installation according to claim 1, it is characterised in that: further include brake assemblies；It is described Extend on rear side of motor axle center rear end；The brake assemblies include axle sleeve, brake disc, back is female and damps brake shoes；The axle sleeve Outer diameter be less than motor housing outer diameter；The axle sleeve is fixedly connected on axle center rear end by keyway；The back is female logical with axle center Screw thread pair is crossed to be fitted on axle center and contact in axle sleeve rear end；The brake disc is two-piece type and its outer diameter is greater than outside motor The outer diameter of shell；The brake disc is fixed by screws on axle sleeve；The damping brake shoes be fixed on spindle box and with brake The periphery of disk cooperates.

4. a kind of electro spindle for facilitating installation according to claim 1, it is characterised in that: the retaining ring side, which has, to be lacked Mouth forms inc ring structure；The axial direction of the retaining ring is equipped with the screw being coupled with spindle box and installs Hole；The retaining ring is in the radial direction locked the notch two sides of retaining ring by screw.

5. a kind of electro spindle for facilitating installation according to claim 1, it is characterised in that: the outer diameter etc. of the motor housing In the outer diameter of main shaft shell.