CN220783106U - Servo rotary mechanism - Google Patents

Abstract

The utility model discloses a servo rotating mechanism which comprises a second servo motor, a speed reducer, a box body assembly, a rotating assembly and a rotating seat, wherein an output shaft of the second servo motor is connected with the speed reducer, the rotating assembly is arranged in an inner cavity of the box body assembly, one end of the rotating assembly is connected with the speed reducer, the other end of the rotating assembly is connected with the rotating seat, the box body assembly is divided into a first connecting part and a second connecting part along the transverse direction, one end of the rotating assembly is positioned in the inner cavity of the first connecting part, the other end of the rotating assembly is positioned in the inner cavity of the second connecting part, the speed reducer is arranged on one end face of the first connecting part, the rotating seat is arranged on the end face, far away from the speed reducer, of the second connecting part, the rotating seat can rotate relative to the second connecting part, and the second servo motor drives the rotating assembly to rotate through the speed reducer, and then drives the rotating seat to be connected through the rotating assembly, so that a side milling head assembly connected with the rotating seat is driven to rotate. The utility model can reduce noise and vibration, has smaller volume and smaller occupied space.

Description

Servo rotary mechanism

Technical Field

The utility model relates to the technical field of matched parts of numerical control drilling centers, in particular to a servo rotating mechanism.

Background

With the rapid development of domestic and foreign plate furniture, the personalized demands of high-end customization are gradually increasing, and the demands for processing all sides on target plates are also increasing. The requirements of the side milling process are particularly outstanding, the variety is more, and the processing precision requirement is high. To meet this type of demand, it is necessary to configure a side milling head in a numerically controlled drilling center. In order to realize the rotation of the side milling head, a side milling head rotating device is also required to be installed. The side milling head assembly needs a corresponding driving device, and the driving device usually adopts a servo motor as power, so that a servo rotating mechanism is formed. The structural design of the existing servo rotating mechanism is complex, so that the cost is high, the maintenance is inconvenient, and the size is large.

Disclosure of Invention

In view of the shortcomings of the prior art, it is an object of the present utility model to provide a servo rotation mechanism that can solve the problems described in the background art.

The technical scheme for realizing the purpose of the utility model is as follows:

the utility model provides a servo rotary mechanism, including second servo motor, the speed reducer, the box subassembly, rotating assembly and roating seat, the output shaft and the speed reducer of second servo motor are connected, rotating assembly installs in the inner chamber of box subassembly, rotating assembly's one end is connected with the speed reducer, the other end is connected with the roating seat, the box subassembly is including box base and the box apron that mutually covers and close together, in order to form an inner chamber in the box subassembly, the box subassembly is divided into first connecting portion and second connecting portion along horizontal direction, rotating assembly's one end is arranged in first connecting portion's inner chamber, the other end is arranged in second connecting portion's inner chamber, the speed reducer is installed on first connecting portion's an terminal surface, thereby also install second servo motor on the box subassembly, the roating seat is installed on the terminal surface that the speed reducer was kept away from to the second connecting portion, thereby make the roating seat can rotate relative to box subassembly, the second servo motor passes through the speed reducer drive and rotates the subassembly, and then pass through the rotatory seat of rotating assembly drive and connect, thereby the side mill the subassembly that is connected with the roating seat.

Further, the rotating assembly comprises a driving wheel, an upper bearing flange, a driven wheel, a cross roller collar, a synchronous belt, a lower bearing flange and a rotating seat, wherein the driven wheel is embedded and installed in the inner cavity of the box body base and is positioned in the inner cavity where the second connecting part is positioned, a through hole of the driven wheel is opposite to a third through hole dug on the box body base, the third through hole is opposite to the first through hole, so that a main shaft of the main shaft assembly can sequentially pass through the first through hole and the third through hole and then is connected with the side milling head assembly, the driving wheel is embedded and installed in the inner cavity of the main box body base and is positioned in the inner cavity where the first connecting part is positioned, the driving wheel and the driven wheel are connected through the synchronous belt, the driving wheel can drive the driven wheel to rotate through the synchronous belt, one end of the synchronous belt is wound on the driving wheel, the other end of the synchronous belt is wound on the driven wheel, and the synchronous belt is in meshed connection with the driven wheel,

the upper bearing method is embedded and installed in a through hole of the driven wheel, one end of the upper bearing flange, which is far away from the driven wheel, is attached to the bottom wall of the inner cavity of the box body base, the through hole of the upper bearing flange is just opposite to the third through hole, the cross roller collar is completely embedded and installed in the through hole of the driven wheel, the lower bearing flange is embedded and installed in the through hole of the driven wheel and embedded and installed in the through hole of the upper bearing flange, and the lower bearing flange and the upper bearing flange are connected together through a connecting piece, so that the cross roller collar is limited between the upper bearing flange and the lower bearing flange and is always positioned in the through hole of the driven wheel, the rotating seat sequentially penetrates through the through hole of the driven wheel, the through hole of the cross roller collar, the through hole of the lower bearing flange and the second through hole, the cross roller collar is sleeved on the rotating seat, and the outer baffle ring on the rotating seat is connected with the driven wheel through the connecting piece.

Further, cross roller collars are disposed parallel to the upper bearing flange.

Further, the outer baffle ring is fixedly arranged at one end of the rotating seat, which is close to the driven wheel, and the outer baffle ring is attached to a protruding part protruding from the inner cavity of the driven wheel to the center of the through hole, so that the driven wheel is connected with the outer baffle ring.

Further, two end faces of the second connecting portion are respectively on the same plane with the end faces corresponding to the first connecting portion, so that the second connecting portion and the first connecting portion form an integrally-paved structure.

Further, still include the sealing washer, the sealing washer can be O type sealing washer or U type sealing washer, and the sealing washer embedding is installed in the second through-hole of box apron to be located the junction of roating seat and box apron, wherein, be provided with sealed recess in the second through-hole of box apron, the sealing washer embedding is installed in sealed recess.

Further, still include the backup pad, the speed reducer passes through the backup pad and installs on the box base, and the backup pad is fixed to be laminated on the terminal surface of box base, and the speed reducer is fixed in the backup pad to the output of speed reducer passes the through-hole in the backup pad and is connected with the action wheel.

Further, the anti-dust device also comprises a plurality of anti-dust cushion strips, wherein each anti-dust cushion strip is fixed on the supporting plate in an array manner and fixedly installed on the supporting plate through the connecting piece, and the anti-dust cushion strips are arranged on the speed reducer and the supporting plate.

Further, still include two sets of spacing subassemblies, two sets of spacing subassemblies are located the different sides of last bearing flange respectively, and spacing subassembly is used for limiting in the inner chamber that goes up bearing flange at second connecting portion place, and spacing subassembly includes the dead lever, circlip and a plurality of bearing, and each bearing all overlaps to be established on the dead lever, and the dead lever is connected with the circlip, and the circlip is used for spacing bearing, prevents that the bearing from breaking away from in the dead lever, and elasticity is fixed mounting currently on the box base.

Further comprises a bearing connecting plate which is arranged on the first connecting part of the base of the box body and spans the inner cavity where the first connecting part is positioned, one end of a synchronous belt wound on the driving wheel is arranged between the inner cavity and the bearing connecting plate, the bearing connecting plate is used for limiting the synchronous belt,

the upper and lower both ends of bearing connecting plate are respectively installed on the box base through a bearing to upper and lower two bearing interval sets up, and the upper and lower both ends of hold-in range are around establishing respectively on two bearings, and bearing connecting plate and two bearings mutually support, make hold-in range and bearing form rolling contact, in order to reduce the hold-in range and occupy the horizontal space of the inner chamber of box base, thereby reduce the installation space of whole rotating assembly.

The beneficial effects of the utility model are as follows: the utility model can effectively reduce the space on two sides required by the synchronous belt, can also form rolling friction, reduce the abrasion of the outer surface of the synchronous belt and reduce noise and vibration, thereby ensuring that the whole servo rotating mechanism has smaller volume and smaller occupied space, fully utilizing the limited space of the compact structure of the side milling spindle device of the numerical control drilling center and realizing the rotating function of the cutter; simultaneously, the structure can reduce noise and vibration, and the transmission is stable. In addition, compared with the existing complex servo rotating mechanism, the servo rotating mechanism is simpler in structure, more convenient to maintain and lower in cost.

Drawings

FIG. 1 is a schematic view of an assembled structure of the present utility model;

FIG. 2 is an exploded view of the present utility model;

FIG. 3 is an assembled schematic view of a servo rotation mechanism and side milling head assembly;

FIG. 4 is a schematic diagram of a servo rotation mechanism;

FIG. 5 is a second schematic diagram of a servo rotation mechanism;

FIG. 6 is an exploded view of a servo rotation mechanism;

FIG. 7 is a schematic cross-sectional view of a servo rotation mechanism;

FIG. 8 is a front view of a servo rotation mechanism;

in the figures, 1-spindle assembly, 101-first spindle motor, 102-spindle, 103-spindle taper, 2-platen assembly, 201-platen support, 202-platen, 203-first through hole, 3-servo rotation mechanism, 301-second servo motor, 302-speed reducer, 303-box assembly, 3031-first connection, 3032-second connection, 304-cylinder, 305-second through hole, 306-inner cavity, 307-dust gasket strip, 308-support plate, 309-drive wheel, 310-third through hole, 311-bearing rod, 312-bearing, 313-circlip, 314-upper bearing flange, 315-driven wheel, 316-cross roller collar, 317-timing belt, 318-lower bearing flange, 319-outer retainer ring, 3304-rotating seat, 321-box cover plate, 322-seal ring, 323-bearing connection plate, 324-fourth through hole, 3031-box base, 4-side milling head assembly, 401-milling head, 402-milling head front seat, 403-conical shank, 5-connection.

Detailed Description

The utility model is further described with reference to the accompanying drawings and detailed description below:

as shown in fig. 1-8, a side milling head rotating device of a numerical control drilling center comprises a main shaft assembly 1, a pressing plate assembly 2, a servo rotating mechanism 3 and a side milling head assembly 4, wherein the pressing plate assembly 2 is installed on the main shaft assembly 1 and penetrates through the pressing plate assembly 2, the output end of the main shaft assembly 1 penetrates through the pressing plate assembly 2 and is connected with the servo rotating mechanism 3 which is also installed on the main shaft assembly 1, the side milling head assembly 4 penetrates through the servo rotating mechanism 3 and is spaced from the servo rotating mechanism 3, one end of the side milling head assembly 4 penetrates through the servo rotating mechanism 3 and is connected with the output end of the main shaft assembly 1 penetrating through the pressing plate assembly 2, the main shaft assembly 1 is connected with the side milling head assembly 4 in a negative pressure adsorption mode, and a milling head 401 on the side milling head assembly 4 is driven to rotate by the main shaft assembly 1. The servo rotation mechanism 3 is used for driving the lateral head assembly to integrally rotate.

The spindle assembly 1 comprises a spindle bracket (not shown in the figure), a first spindle motor 101 and a spindle 102 which are mounted on the spindle bracket, a spindle conical surface hole 103 is formed in the spindle 102, the first spindle motor 101 is used for driving a milling head 401 which is adsorbed on a side milling head assembly 4 on the spindle conical surface hole 103 in a negative pressure mode to rotate, the side milling head assembly 4 is connected with the spindle assembly 1 in a negative pressure adsorption mode, and an output end of the first spindle motor 101 extends into the spindle conical surface hole 103 and also extends into the spindle conical surface hole 103 with the side milling head assembly 4 to be connected, so that the milling head 401 on the side milling head assembly 4 can be driven to rotate on the spindle conical surface hole 103, and the milling head 401 can rotate relative to the spindle assembly 1.

In the process of driving the tapered shank 404 to rotate by the spindle assembly 1, the milling head rear seat 403 is connected with the cylinder 304 with the through hole through the connecting piece, so that the milling head rear seat 403 and the milling head front seat 402 do not rotate along with the tapered shank 404 but remain motionless.

In order to make the milling head rear seat 403 more firmly connected with the cylinder 304 and still maintain connection in case that a certain connecting piece is damaged, the milling head rear seat 403 is connected with the cylinder 304 through a plurality of connecting pieces, and each connecting piece is circumferentially arranged at intervals along the cylinder 304.

The platen assembly 2 includes a platen support 201 and at least four platens 202, each platen 202 being mounted on one end surface of the platen support 201 at equal intervals in a first uniform distribution, and each platen 202 being disposed circumferentially around to define a first through hole 203. The spindle frame on the spindle assembly 1 is fixedly mounted on the platen bracket 201, thereby mounting the spindle assembly 1 on the platen assembly 2. The first spindle motor 101 of the spindle assembly 1 is mounted at one end of the spindle bracket away from the platen support 201, and one end of the spindle 102 of the spindle assembly 1 passes through the first through hole 203 and then passes through the servo rotating mechanism 3 again to be connected with the side milling head assembly 4 mounted on the servo rotating mechanism 3, and the side milling head assembly 4 is adsorbed on the spindle 102. Wherein, the end face of the main shaft 102 near one end of the servo rotating mechanism is provided with a mounting hole, the servo rotating mechanism is mounted on the mounting hole through a screw, and the main shaft 102 is connected with the servo rotating mechanism.

The side milling head assembly 4 comprises a milling head 401, a milling head front seat 402, a milling head rear seat 403 and a conical cutter handle 404, the side milling head assembly 4 is a part, the whole part is formed by the milling head 401, the milling head front seat 402, the milling head rear seat 403 and the conical cutter handle 404, a plurality of milling heads 401 are installed on the milling head front seat 402, the milling heads 401 are distributed at intervals, the milling heads 401 are installed on the milling head 401 in a radial direction perpendicular to the milling head front seat 402, and each side direction of the corresponding milling head 401 extends outwards, so that each side surface of a target plate can be milled after the milling cutter is installed on each milling head 401. The milling head rear seat 403 is fixedly connected to one end of the milling head front seat 402, which is close to the servo rotating mechanism 3, one end of the conical cutter handle 404 is fixedly installed on the milling head rear seat 403 and extends into the cavity of the milling head front seat 402 to be connected with one end of the milling head 401 which also extends into the cavity, so that the conical cutter handle 404 can drive the milling head 401 to rotate (i.e. the milling head 401 rotates relative to the milling head front seat 402) through a gear (not shown in the figure) inside the milling head front seat 402. The axis of the tapered shank 404 coincides with the axis of the milling head rear seat 403 (i.e. is on the same straight line), and one end of the tapered shank 404 passes through the servo rotation mechanism 3 and extends into the spindle conical surface hole 103 to be connected with the output end of the first spindle motor 101, so that the side milling head assembly 4 is connected with the spindle assembly 1, and the spindle assembly 1 can drive the milling cutter on the milling head 401 on the side milling head assembly 4 to rotate for milling operation.

Wherein, each milling head 401 on the side milling head assembly 4 corresponds to each pressing plate 202 on the pressing plate assembly 2 one by one, and the corresponding milling heads 401 and pressing plates 202 store the same direction. For example, the platen 202 and the milling head 401, which are vertically upward in fig. 2, are in one-to-one correspondence, both facing upward.

The vertically downward platen 202 and the milling head 401 are in one-to-one correspondence, both facing downward. The same is true for the pressing plates 202 and the milling heads 401 on the left and right sides, and the pressing plates 202 and the milling heads 401 are oriented in the same direction. Such that the current milling head 401 forms 45 ° with an included angle region, which is a region between the platen 202 corresponding to the current milling head 401 and the adjacent platen 202 of the corresponding platen 202. The part of the side milling head assembly 4 mounted on the servo rotating mechanism 3 is marked as a first part, the rest part of the servo rotating mechanism 3 except the first part is marked as a second part, the first part is directly mounted on the pressing plate 202, and the second part passes through the included angle area, so that the related part is mounted by fully utilizing the limited space on the pressing plate assembly 2, and the occupied space is saved. In addition, the included angle of 45 degrees is set, so that a larger space is reserved between two adjacent pressing plates 202 and two adjacent milling heads 401, the pressing plates 202 are uniformly distributed around the spindle assembly 12, a reasonable operation space for the pressing plates 202 to act is provided for processing each side surface of a target plate, and therefore processing precision is effectively improved.

The servo rotating mechanism 3 comprises a second servo motor 301, a speed reducer 302, a box assembly 303, a rotating assembly and a rotating seat 304, wherein an output shaft of the second servo motor 301 is connected with the speed reducer 302, the rotating assembly is installed in an inner cavity 306 of the box assembly 303, one end of the rotating assembly is connected with the speed reducer 302, and the other end of the rotating assembly is connected with the rotating seat 304. The housing assembly 303 includes a housing base 325 and a housing cover 321 that are mutually covered to form an interior cavity 306 within the housing assembly 303. The case assembly 303 is divided into a first connection portion 3031 and a second connection portion 3032 in the lateral direction, and one end of the rotation assembly is located in the inner cavity 306 of the first connection portion 3031 and the other end is located in the inner cavity 306 of the second connection portion 3032, that is, the rotation assembly spans the second connection portion 3032 and the first connection portion 3031. The two end surfaces of the second connection portion 3032 are on the same plane as the end surfaces corresponding to the first connection portion 3031, respectively, so that the second connection portion 3032 and the first connection portion 3031 form a flat and spread integrated structure. The speed reducer 302 is mounted on one end face of the first connection portion 3031, thereby mounting the second servo motor 301 also on the case assembly 303. The rotation seat 304 is mounted on an end surface of the second connection portion 3032 remote from the speed reducer 302, and the rotation seat 304 is rotatable relative to the second connection portion 3032, so that the rotation seat 304 is rotatable relative to the case assembly 303. The second servo motor 301 drives the rotating assembly to rotate through the speed reducer 302, and then drives the rotating seat 304 to be connected through the rotating assembly, so that the side milling head assembly 4 connected with the rotating seat 304 is driven to rotate, namely the side milling head assembly 4 integrally rotates.

The rotating seat 304 is provided with a positioning hole, the positioning hole corresponds to a mounting hole on the spindle 102, and one end of the positioning hole extends into the mounting hole through a screw, so that the spindle is connected with the rotating seat.

The rotating assembly comprises a driving wheel 309, an upper bearing flange 314, a driven wheel 315, a cross roller collar 316, a synchronous belt 317, a lower bearing flange 318 and a rotating seat 304, wherein the driven wheel 315 is embedded and installed in an inner cavity 306 of a box base 325 and is positioned in the inner cavity 306 where a second connecting part 3032 is positioned, a through hole of the driven wheel 315 is opposite to a third through hole 310 dug on the box base 325, the third through hole 310 is opposite to the first through hole 203, so that the main shaft 102 of the main shaft assembly 1 can sequentially pass through the first through hole 203 and the third through hole 310 and then be connected with the side milling head assembly 4. The driving wheel 309 is inserted into the inner cavity 306 of the main housing seat through the fourth through hole 324, and is located in the inner cavity 306 where the first connection portion 3031 is located. The driving pulley 309 and the driven pulley 315 are connected by a timing belt 317, so that the driving pulley 309 can drive the driven pulley 315 to rotate by the timing belt 317. One end of the synchronous belt 317 is wound on the driving wheel 309, the other end is wound on the driven wheel 315, and the synchronous belt 317 is in meshed connection with the driven wheel 315, that is, a gear is arranged on the outer ring of the driven wheel 315, and a gear is also arranged on the inner ring of the synchronous belt 317, so that the synchronous belt 317 is in meshed connection with the driven wheel 315.

The upper bearing 312 is embedded and installed in the through hole of the driven wheel 315, one end of the upper bearing flange 314, which is far away from the driven wheel 315, is attached to the bottom wall of the inner cavity 306 of the box base 325, and the through hole of the upper bearing flange 314 is right opposite to the third through hole 310. The cross roller collar 316 is fully embedded in the through hole of the driven wheel 315 and is disposed in parallel with the upper bearing flange 314, the lower bearing flange 318 is embedded in the through hole of the driven wheel 315 and is embedded in the through hole of the upper bearing flange 314, and the lower bearing flange 318 and the upper bearing flange 314 are connected together by the connecting piece 5, so that the cross roller collar 316 is limited between the upper bearing flange 314 and the lower bearing flange 318 and is always in the through hole of the driven wheel 315. The rotary seat 304 sequentially passes through the through hole of the driven wheel 315, the through hole of the cross roller collar 316, the through hole of the lower bearing flange 318 and the second through hole 305, and the cross roller collar 316 is sleeved on the rotary seat 304. An outer retainer 319 on the rotating seat 304 is connected with the driven wheel 315 through a connecting piece 5, the outer retainer 319 is fixedly arranged at one end of the rotating seat 304 close to the driven wheel 315, and the outer retainer 319 is attached to a protruding part of the inner cavity 306 of the driven wheel 315 protruding towards the center of the through hole, so that the driven wheel 315 is connected with the outer retainer 319. So that the driven wheel 315 can rotate the rotary base 304.

The outer ring of the third through hole 310 is provided with a circle of lock hole, that is, a circle of lock hole is provided on the box base 325, the lock hole corresponds to a mounting hole of the locking plate 104 provided on one end of the spindle frame near the spindle 102, and a connecting piece (such as a screw) is driven into the lock hole and the mounting hole on the locking plate 104, so that the box base 325 is connected with the spindle assembly 1.

In an alternative embodiment, the rotary seat cover plate 321 further comprises a sealing ring 322, wherein the sealing ring 322 can be an O-shaped sealing ring 322 or a U-shaped sealing ring 322, and the sealing ring 322 is embedded in the second through hole 305 of the box cover plate 321 and is located at the joint of the rotary seat 304 and the box cover plate 321. Wherein, the second through hole 305 of the case cover 321 is provided with a sealing groove, and the sealing ring 322 is embedded in the sealing groove.

In an alternative embodiment, further comprising a support plate 308, reducer 302 is mounted to housing base 325 by support plate 308. The supporting plate 308 is fixedly attached to the end face of the box base 325, the speed reducer 302 is fixed to the supporting plate 308, and the output end of the speed reducer 302 passes through a through hole in the supporting plate 308 to be connected with the driving wheel 309.

In an alternative embodiment, a plurality of dustproof cushion strips 307 are further included, each dustproof cushion strip 307 is fixed on a supporting plate 308 in an array manner, and is fixedly installed on the supporting plate 308 through a connecting piece 5, and the dustproof cushion strips 307 are arranged between the speed reducer 302 and the supporting plate 308.

In an alternative embodiment, two sets of stop assemblies are included, one on each side of the upper bearing flange 314, the stop assemblies being configured to be positioned within the cavity 306 in which the upper bearing flange 314 is positioned at the second connection 3032. The limiting assembly comprises a bearing rod 311, an elastic retainer 313 and a plurality of bearings 312, wherein each bearing 312 is sleeved on the bearing rod 311, the bearing rod 311 is connected with the elastic retainer 313, the elastic retainer 313 is used for limiting the bearing 312 and preventing the bearing 312 from being separated from the bearing rod 311, and the elastic retainer is fixedly installed on the box base 325 at present.

In an alternative embodiment, the housing further includes a bearing connection plate 323, and the bearing connection plate 323 is mounted on the first connection portion 3031 of the housing base 325 and spans the inner cavity 306 in which the first connection portion 3031 is located. One end of the synchronous belt 317 wound around the driving wheel 309 is interposed between the inner cavity 306 and the bearing connection plate 323, and the bearing connection plate 323 is used for limiting the synchronous belt 317.

The upper and lower ends of the bearing connection plate 323 are respectively mounted on the box base 325 through one bearing 312, the upper and lower bearings 312 are arranged at intervals, and the upper and lower ends of the synchronous belt 317 are respectively wound on the two bearings 312. The bearing connecting plate 323 and the two bearings 312 cooperate with each other so that the timing belt 317 forms rolling contact with the bearings 312 to reduce the lateral space of the timing belt 317 occupied by the inner cavity 306 of the housing base 325, thereby reducing the installation space of the entire rotating assembly.

The second servo motor 301 drives the driving wheel 309 to rotate through the speed reducer 302, the driving wheel 309 drives the driven wheel 315 to rotate through the synchronous belt 317, the driven wheel 315 drives the rotating seat 304 to rotate, and the rotating seat 304 drives the side milling head assembly 4 connected with the rotating seat 304 to rotate, namely, the side milling head assembly 4 integrally rotates (namely, all milling heads 401 synchronously rotate together), so that the purpose of reversing the milling cutter mounted on the side milling head assembly 4 is met.

For the servo rotating mechanism 3, by arranging the bearings 312 having the guide and constituting the rolling contact on both sides of the timing belt 317 between the driving pulley 309 and the driven pulley 315, the space on both sides required for the timing belt 317 can be effectively reduced, and rolling friction can also be formed, the abrasion of the outer surface of the timing belt 317 can be reduced, noise and vibration can be reduced, so that the whole servo rotating mechanism is small in volume and small in occupied space. In addition, compared with the existing complex servo rotating mechanism, the servo rotating mechanism is simpler in structure, more convenient to maintain and lower in cost.

The utility model installs the second servo motor 301 of the servo rotating mechanism 3 in the included angle area between two adjacent pressing plates 202 of the pressing plate assembly 2, and the second connecting part 3032 of the box body assembly 303 of the servo rotating mechanism 3 is installed on the pressing plates 202, thereby the space of the pressing plate assembly 2 can be recycled, and the milling cutter installed on the milling head 401 can be replaced conveniently.

The embodiment disclosed in the present specification is merely an illustration of one-sided features of the present utility model, and the protection scope of the present utility model is not limited to this embodiment, and any other functionally equivalent embodiment falls within the protection scope of the present utility model. Various other corresponding changes and modifications will occur to those skilled in the art from the foregoing description and the accompanying drawings, and all such changes and modifications are intended to be included within the scope of the present utility model as defined in the appended claims.

Claims (10)

1. The utility model provides a servo rotary mechanism, a serial communication port, including the second servo motor, the speed reducer, the box subassembly, rotating assembly and roating seat, the output shaft and the speed reducer of second servo motor are connected, rotating assembly installs in the inner chamber of box subassembly, rotating assembly's one end is connected with the speed reducer, the other end is connected with the roating seat, the box subassembly includes box base and box apron that mutually covers and closes together, in order to form an inner chamber in the box subassembly, the box subassembly is divided into first connecting portion and second connecting portion along the transverse direction, rotating assembly's one end is arranged in the inner chamber of first connecting portion, the other end is arranged in the inner chamber of second connecting portion, the speed reducer is installed on one terminal surface of first connecting portion, thereby also install second servo motor on the box subassembly, the roating seat is installed on the terminal surface of speed reducer is kept away from to the second connecting portion, thereby the roating seat can rotate relative to the box subassembly, the second servo motor passes through the speed reducer drive and rotates the rotating assembly, and then drive the roating seat is connected with the rotatory head of side mill of rotatory connection.

2. The servo rotary mechanism as claimed in claim 1, wherein the rotating assembly comprises a driving wheel, an upper bearing flange, a driven wheel, a cross roller collar, a synchronous belt, a lower bearing flange and a rotating seat, the driven wheel is embedded and installed in an inner cavity of the base of the box body and is positioned in an inner cavity where the second connecting portion is positioned, a through hole of the driven wheel is opposite to a third through hole dug on the base of the box body, the third through hole is opposite to the first through hole, so that a main shaft of the main shaft assembly can sequentially pass through the first through hole and the third through hole and then is connected with the side milling head assembly, the driving wheel is embedded and installed in an inner cavity of the main box body and is positioned in an inner cavity where the first connecting portion is positioned, the driving wheel and the driven wheel are connected through the synchronous belt, thereby the driving wheel can drive the driven wheel to rotate through the synchronous belt, one end of the synchronous belt is wound on the driving wheel, the other end of the synchronous belt is wound on the driven wheel, and the synchronous belt is in meshed connection with the driven wheel,

the upper bearing method is embedded and installed in a through hole of the driven wheel, one end of the upper bearing flange, which is far away from the driven wheel, is attached to the bottom wall of the inner cavity of the box body base, the through hole of the upper bearing flange is just opposite to the third through hole, the cross roller collar is completely embedded and installed in the through hole of the driven wheel, the lower bearing flange is embedded and installed in the through hole of the driven wheel and embedded and installed in the through hole of the upper bearing flange, and the lower bearing flange and the upper bearing flange are connected together through a connecting piece, so that the cross roller collar is limited between the upper bearing flange and the lower bearing flange and is always positioned in the through hole of the driven wheel, the rotating seat sequentially penetrates through the through hole of the driven wheel, the through hole of the cross roller collar, the through hole of the lower bearing flange and the second through hole, the cross roller collar is sleeved on the rotating seat, and the outer baffle ring on the rotating seat is connected with the driven wheel through the connecting piece.

3. A servo rotary mechanism as recited in claim 2, wherein the cross roller collars are disposed parallel to the upper bearing flange.

4. A servo rotary mechanism as recited in claim 3, wherein the outer collar is fixedly mounted to the rotary base adjacent one end of the driven wheel, the outer collar being attached to a projection of the inner chamber of the driven wheel projecting toward the center of the through hole, thereby connecting the driven wheel to the outer collar.

5. The servo rotary mechanism as recited in claim 4, wherein the two end surfaces of the second connecting portion are on the same plane as the corresponding end surfaces of the first connecting portion, respectively, so that the second connecting portion and the first connecting portion form a flat and spread integrated structure.

6. The servo rotary mechanism of claim 1, further comprising a sealing ring, wherein the sealing ring can be an O-ring or a U-ring, the sealing ring is embedded in the second through hole of the cover plate of the box body and is located at the joint of the rotary seat and the cover plate of the box body, a sealing groove is arranged in the second through hole of the cover plate of the box body, and the sealing ring is embedded in the sealing groove.

7. The servo rotary mechanism as recited in claim 6, further comprising a support plate, wherein the speed reducer is mounted on the housing base through the support plate, the support plate is fixedly attached to an end surface of the housing base, the speed reducer is fixed on the support plate, and an output end of the speed reducer is connected to the driving wheel through a through hole in the support plate.

8. The servo rotary mechanism of claim 7, further comprising a plurality of dust-proof slats, each dust-proof slat being secured to the support plate in an array and secured to the support plate by a connector, the dust-proof slats being interposed between the speed reducer and the support plate.

9. The servo rotary mechanism of claim 8, further comprising two sets of limiting assemblies, the two sets of limiting assemblies being located on different sides of the upper bearing flange, the limiting assemblies being configured to be limited in an inner cavity where the upper bearing flange is located at the second connecting portion, the limiting assemblies comprising a bearing rod, a circlip and a plurality of bearings, each bearing being sleeved on the bearing rod, the bearing rod being connected with the circlip, the circlip being configured to limit the bearings, preventing the bearings from being separated from the bearing rod, the circlip being mounted on the housing base.

10. The servo rotary mechanism according to claim 1, further comprising a bearing connection plate mounted on the first connection portion of the base of the case and crossing the inner cavity where the first connection portion is located, a timing belt wound around the driving wheel with one end interposed between the inner cavity and the bearing connection plate, the bearing connection plate being for limiting the timing belt,

the upper and lower both ends of bearing connecting plate are respectively installed on the box base through a bearing to upper and lower two bearing interval sets up, and the upper and lower both ends of hold-in range are around establishing respectively on two bearings, and bearing connecting plate and two bearings mutually support, make hold-in range and bearing form rolling contact, in order to reduce the hold-in range and occupy the horizontal space of the inner chamber of box base, thereby reduce the installation space of whole rotating assembly.