CN217849203U - Motor end cover bearing press-fitting device - Google Patents

Abstract

The utility model discloses a motor end cover bearing pressure equipment device, include: the lower die assembly and the upper die assembly are suitable for lifting relative to the lower die assembly; the upper die assembly is fixedly arranged on a die block; the lower die pressing component is arranged on the feeding component; the pay-off subassembly includes: the supporting base, a supporting rotary table arranged on the supporting base and used for supporting the lower compression die assembly, and a rotating mechanism connected with the supporting rotary table to enable the supporting rotary table to rotate relative to the supporting base; the supporting rotary table is of an annular structure, and a plurality of lower die pressing assemblies are uniformly distributed on the upper end surface of the supporting rotary table along the circumferential direction; the upper die assembly comprises a positioning column fixedly arranged on the die block and a pressure head detachably assembled with the positioning column; the lower die pressing component comprises a lower die base arranged on the supporting rotary table and a limiting base which is detachably assembled on the lower die base and used for limiting the motor end cover. The utility model discloses can effectively improve motor end cover bearing's pressure equipment operating efficiency.

Description

Motor end cover bearing press-fitting device

Technical Field

The utility model relates to a motor processing technology field especially relates to a motor end cover bearing pressure equipment device.

Background

The motor is required to be provided with a bearing for matching with the operation of the rotor shaft in the use process, the bearing is usually pre-installed in a motor end cover in the whole processing and assembling process of the motor, and then the installed motor end cover is subjected to subsequent procedures such as assembling the rotor shaft of a rotor assembly.

Specifically, a press-fitting mode is usually adopted in the process of mounting the bearing into the motor end cover, a bearing press-fitting structure commonly used in the prior art is a single press-fitting stroke, namely in the process of completing one press-fitting process, in order to improve the safety of manual operation in the process of manually transferring a finished motor end cover product subjected to press-fitting of the bearing and loading a new motor end cover to be press-fitted with the bearing, the operation of the press-fitting structure needs to be suspended, namely the operation of the drive power of the press-fitting structure is temporarily closed, and the drive power of the press-fitting structure is restarted after the transfer of the finished product and the loading of the motor end cover to be press-fitted with the bearing are completed, so that the phenomenon that a worker is accidentally injured due to the instability of the manual operation speed when the operation mode is set to be a fixed frequency without closing the drive power is avoided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a motor end cover bearing pressure equipment device to solve the technical problem who improves motor end cover bearing's pressure equipment operating efficiency.

The utility model discloses a motor end cover bearing pressure equipment device is realized like this:

a motor end cover bearing press fitting device comprises: the lower die assembly and the upper die assembly are suitable for lifting relative to the lower die assembly;

the upper die assembly is fixedly arranged on a die block; the lower die pressing assembly is arranged on the feeding assembly;

the feeding assembly comprises: the device comprises a supporting base, a supporting turntable which is arranged on the supporting base and used for supporting a lower compression die assembly, and a rotating mechanism which is connected with the supporting turntable so that the supporting turntable rotates relative to the supporting base; the supporting rotary table is of an annular structure, and a plurality of lower die assemblies are uniformly distributed on the upper end surface of the supporting rotary table along the circumferential direction; and

the upper die assembly comprises a positioning column fixedly arranged on the die block and a pressing head detachably assembled with the positioning column;

the lower die pressing assembly comprises a lower die base arranged on the supporting rotary table and a limiting base which is detachably assembled on the lower die base and used for limiting the motor end cover.

In an optional embodiment of the present invention, the pressing head includes a base body in threaded connection with the positioning pillar, a press-fitting head fixedly connected to the base body and adapted to press against the bearing, and a limiting pillar connected to an end of the press-fitting head away from the base body and adapted to be inserted into an inner hole of the bearing; and

the outer diameter of the press-fitting head is larger than that of the limiting column.

In the optional embodiment of the present invention, a circular accommodating cavity for accommodating the motor end cover is provided in the limiting seat.

In an alternative embodiment of the present invention, a circumferential spacing assembly adapted to abut against the motor end cover from a circumferential side wall of the motor end cover is provided in the circular accommodating chamber.

In an optional embodiment of the present invention, the circumferential limiting component includes a plurality of clamping plates arranged at intervals along a circumferential direction of the circular accommodating cavity, and springs arranged between the plurality of clamping plates and an inner cavity wall of the circular accommodating cavity in a one-to-one manner; wherein

The clamping plate is in sliding fit with the inner bottom wall of the circular accommodating cavity.

In an alternative embodiment of the present invention, the support turret is connected to a turret drive assembly adapted to drive the support turret in rotation relative to the support base;

the supporting base is connected with the supporting rotary table through an annular sliding assembly; the annular sliding assembly comprises a bearing seat fixedly connected with the supporting base and a rotating bearing fixedly connected with the bearing seat; and the outer ring of the rotating bearing is fixedly connected with the bearing seat, and the inner ring of the rotating bearing is connected with the bottom end surface of the supporting turntable.

In an alternative embodiment of the present invention, the turntable driving assembly includes a ring gear disposed on the bottom end face of the supporting turntable, a pair of driving gears symmetrically disposed on both sides of the ring gear and engaged with the ring gear, and a driver coupled to the pair of driving gears to drive the driving gears to rotate.

In an alternative embodiment of the present invention, four lower press mold assemblies are disposed on the upper end surface of the supporting turntable; and

and the included angle formed between every two adjacent lower die assemblies in the four lower die assemblies is 90 degrees.

In an optional embodiment of the present invention, the motor end cap bearing press-fitting device further comprises a pressing die guiding buffer assembly;

the die guide buffer assembly comprises an annular supporting table, a supporting block, a pair of guide rods and a return spring, wherein the annular supporting table is arranged at the top end of the supporting base and is positioned in an annular interval of the supporting rotary table, the supporting block is positioned outside the supporting rotary table, one end of the guide rod is respectively arranged on the annular supporting table and the supporting block, and the return spring is sleeved on the outer peripheral side of the guide rod;

the other ends of the pair of guide rods are fixedly connected with the end faces, facing the lower die assembly, of the die blocks.

In an alternative embodiment of the present invention, the guide rod includes a sliding rod connected to the pressing module, and a guide sleeve connected to the annular support table and the support block, respectively;

the sliding rod is sleeved with the guide sleeve in a sliding mode.

By adopting the technical scheme, the utility model discloses following beneficial effect has: the utility model discloses a motor end cover bearing pressure equipment device, through a plurality of die assembly under setting up on the supporting revolving stage, at die assembly under along with the continuous rotatory in-process of supporting revolving stage, realize that the cooperation of different die assembly under and last die assembly carries out the pressure equipment operation of motor end cover and bearing. Therefore, the press mounting of the motor end cover and the bearing can be realized under the state that the upper die assembly is not stopped by the driving power, and the whole press mounting efficiency is improved.

Furthermore, the pressure head comprises a press-mounting head and a limiting column, and the outer diameter of the limiting column is smaller than that of the press-mounting head, so that the upper end of the bearing can be abutted against the press-mounting head, and the position of the bearing in the pressure head is fixed; the limiting column is used for extending into an inner hole of the bearing, and after the positioned bearing extends into a bearing mounting opening of the motor end cover, the bearing can be ensured to be positioned at the same position in the motor end cover every time, so that the high mounting precision is ensured, and the motor end cover is prevented from being crushed.

Still further, through the die guide buffer assembly that sets up, under the effect of guide bar, the centering nature of last die assembly and lower die assembly is better, can effectively guarantee the off-the-shelf quality of punching press, can also play the effect of recovering to the last die assembly after accomplishing a punching press under reset spring's effect simultaneously, so can effectively reduce the energy consumption.

Drawings

Fig. 1 is a schematic view of a first view structure of a press-fitting device for a motor end cover bearing of the present invention;

fig. 2 is an exploded schematic view of a pressing head, a bearing and a motor end cover of the bearing press-fitting device for a motor end cover of the present invention;

fig. 3 is a schematic structural diagram of a second view angle of the motor end cover bearing press-fitting device according to the embodiment of the present invention;

FIG. 4 is an enlarged view of the portion A of FIG. 3;

fig. 5 is the schematic view of the local structure of the press mounting device for the motor end cap bearing of the present invention

Fig. 6 is a schematic structural view of an annular sliding assembly of the press-fitting device for the motor end cover bearing according to the embodiment of the present invention;

fig. 7 is a schematic structural diagram of a circumferential limiting component of the press-fitting device for the motor end cover bearing according to the embodiment of the present invention.

In the figure: the bearing comprises a supporting turntable 100, a bearing seat 201, a rotating bearing 202, an outer ring 2021, an inner ring 2022, a ring gear 301, a driving gear 302, a driver 303, a coupler 305, a die block 401, a positioning column 402, a base body 403, a press-fitting head 405, a limiting column 406, a lower die holder 407, a limiting seat 408, a clamping plate 409, a spring 410, a supporting block 501, an annular supporting table 502, a return spring 503, a sliding rod 505, a guide sleeve 507, a supporting base 700, a bearing 8, a motor end cover 9 and a bearing mounting opening 91.

Detailed Description

In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings.

Example 1:

referring to fig. 1 to 7, the present embodiment provides a press-mounting device for a bearing of a motor end cover, including: the lower die assembly and the upper die assembly are suitable for lifting relative to the lower die assembly; for example, but not limited to, a hydraulic driving structure may be coupled above the upper die assembly to enable the upper die assembly to move up and down relative to the lower die assembly, and specifically, a driving force structure for implementing the up-down movement of the upper die assembly is provided herein.

Referring to the drawings in detail, the upper die assembly is fixed to a die block 401; the lower die pressing component is arranged on the feeding component; the feed assembly herein comprises: a support base 700, a support turret 100 provided on the support base 700 for supporting the lower compression mold assembly, and a rotary table connected to the support turret 100 such that the support turret 100 rotates with respect to the support base 700; the supporting turntable 100 is of an annular structure, and a plurality of lower compression mold assemblies are uniformly distributed on the upper end surface of the supporting turntable 100 along the circumferential direction.

For example, in an alternative embodiment, the supporting turntable 100 is a ring structure, and four lower press mold assemblies are arranged on the upper end surface of the supporting turntable 100; and the included angle formed between every two adjacent lower die assemblies in the four lower die assemblies is 90 degrees. Of course, other numbers of lower die assemblies may be provided on the upper end surface of the supporting turntable 100, and the present embodiment is only exemplified by four lower dies shown in the drawings.

Referring next to the drawings, which illustrate an alternative embodiment, first is the upper die assembly:

the upper die assembly comprises a positioning column 402 fixedly arranged on the die pressing module 401 and a pressing head detachably assembled with the positioning column 402; the pressure head comprises a base body 403 in threaded fit with the positioning column 402, a press-fitting head 405 fixedly connected with the base body 403 and suitable for abutting against the bearing 8, and a limiting column 406 connected with one end of the press-fitting head 405, which is far away from the base body 403 and suitable for being inserted into an inner hole of the bearing 8; and the outer diameter of the press-fitting head 405 is larger than the outer diameter of the stopper post 406. The pressure head and the positioning column 402 at the position can be detachably connected, and the pressure head can be replaced in time after being worn along with long-term use of the pressure head. The outer diameter of the press-fitting head 405 here may be selected to be the same as the outer diameter of the bearing 8 or slightly smaller than the outer diameter of the bearing 8, both of which satisfy the requirements of the present embodiment.

By adopting the pressure head structure of the embodiment, the upper end of the bearing 8 can be abutted against the pressure head 405 in the process of carrying out the press-fitting operation on the bearing 8, and the position of the bearing 8 in the pressure head is fixed; the limiting column 406 is used for extending into an inner hole of the bearing 8, and after the positioned bearing 8 extends into the bearing mounting hole 9191 of the motor end cover 9, the bearing 8 can be ensured to be positioned at the same position in the motor end cover 9 every time, so that the mounting precision is high, and the motor end cover 9 is prevented from being crushed.

The following is a compression mold assembly: the lower die assembly comprises a lower die holder 407 arranged on the supporting turntable 100 and a limiting seat 408 which is detachably assembled on the lower die holder 407 and used for limiting the motor end cover 9. Wherein, a circular accommodating cavity for accommodating the motor end cover 9 is arranged in the limiting seat 408. In an alternative implementation, the size of the inner diameter of the circular accommodating cavity and the outer diameter of the motor end cover 9 can be controlled, so that the fit clearance between the motor end cover 9 and the circular accommodating cavity is as small as possible, and the accurate positioning of the motor end cover 9 in the process of press-fitting the bearing 8 is ensured. It should be noted that, in order to facilitate manual work to quickly mount the motor end cover 9 into the circular accommodating cavity of the limiting seat 408, or to facilitate manual work to quickly take out the motor end cover from the circular accommodating cavity of the limiting seat 408 after the press-fitting of the bearing 8 and the motor end cover 9 is completed, in an alternative mode, a pair of notches are formed in the circumferential side wall of the limiting seat 408, so that the motor end cover 9 can be directly clamped by the notch manual work to facilitate taking the motor end cover 9. The longitudinal height of the notch can be smaller than the longitudinal height of the retainer 408, so as to ensure the structural stability and firmness of the integral retainer 408, and the structural firmness of the retainer 408 is not affected by the design of the notch.

In another alternative embodiment, a circumferential stop assembly adapted to abut the motor end cover 9 from a circumferential side wall of the motor end cover 9 is provided in the circular receiving cavity. The circumferential limiting assembly comprises a plurality of clamping plates 409 arranged at intervals along the circumferential direction of the circular accommodating cavity and springs 410 arranged between the plurality of clamping plates 409 and the inner cavity wall of the circular accommodating cavity in a one-to-one mode; wherein the clamping plate is matched and connected with the inner bottom wall of the circular containing cavity in a sliding way. It should be noted that 6 to 8 clamp plates 409 may be used here. Under the structure, when the motor end cover 9 is clamped into the circular accommodating cavity, the plurality of clamping plates 409 can generate a limiting effect on the circumferential direction of the motor end cover 9 under the action of the springs 410, so that the accurate positioning of the motor end cover 9 in the press-fitting operation with the bearing 8 is effectively ensured.

On the basis of the structure, considering also that the motor end cover 9 is conveniently and quickly assembled into the circular accommodating cavity of the limiting seat 408 by manpower, or the motor end cover is conveniently and quickly taken out of the circular accommodating cavity of the limiting seat 408 by manpower after the press-fitting of the bearing 8 and the motor end cover 9 is completed, in an optional mode, the longitudinal height of any clamp plate 409 is smaller than that of the motor end cover 9, so as to avoid the clamp plate 409 from forming a full-surrounding type cover for the circumferential direction of the motor end cover 9, which is inconvenient for manual operation; in still another optional mode, the circumferential side of the motor end cover 9 is limited by the plurality of clamping plates 409 instead of being fully surrounded by 360 degrees, and a pair of notches are formed, and the circumferential side wall of the limiting seat 408 is provided with a pair of notches, and the notches are communicated with the notches, so that the motor end cover 9 can be directly clamped manually through the notches and the notches, and the motor end cover 9 can be taken conveniently.

Further, the matching structure of the supporting turntable 100 and the supporting base 700:

the support turntable 100 is coupled with a turntable drive assembly adapted to drive the support turntable 100 in rotation relative to the support base 700.

More specifically, the support turret 100 is of annular configuration; the annular structure supporting turntable 100 is formed with a hollow annular section. The support base 700 is connected to the support turntable 100 by an annular slide assembly; the annular sliding assembly comprises a bearing seat 201 fixedly connected with the supporting base 700 and a rotating bearing 202 fixedly connected with the bearing seat 201; the outer ring 2021 of the rotary bearing 202 is fixedly connected to the bearing seat 201, and the inner ring 2022 of the rotary bearing 202 is connected to the bottom end surface of the supporting turntable 100. The turntable drive assembly is coupled to the support turntable 100 to rotate the support turntable 100 relative to the support base 700. Alternatively, the rotational bearing 202 is one of, for example, but not limited to, a ball bearing or a needle bearing. That is, during the rotation of the supporting turret 100 driven by the turret drive assembly, the stable rotation of the supporting turret 100 is achieved by the rolling bearing 202, and the resistance to the rotation of the supporting turret 100 is reduced, and during the rotation of the supporting turret 100, the switching between different lower die assemblies is achieved.

The turntable driving assembly employed in the present embodiment includes a ring gear 301 provided on a bottom end surface of the supporting turntable 100, a pair of driving gears 302 symmetrically provided on both sides of the ring gear 301 and engaged with both the ring gear 301, and a driver 303 connected to the pair of driving gears 302 to drive the driving gears 302 to rotate. It should be noted that, for example, but not limited to, the driver 303 employs a reduction motor, the reduction motor is disposed inside the supporting base 700, and a driving shaft of the reduction motor partially penetrates through the supporting base 700 to be fixedly connected with the driving gear 302, where the driving gear 302 is optionally connected with the driving shaft of the reduction motor through a coupling 305. Since the pair of driving gears 302 are symmetrically disposed at both sides of the ring gear 301, it can be understood herein that the pair of rotating gears have opposite rotation directions, thereby achieving stable rotation of the ring gear 301. It should be noted that the rotation speeds of the pair of driving gears 302 are the same by controlling the output power of the corresponding reduction motor.

Example 2:

on the basis of the motor end cover bearing press-fitting device in embodiment 1, the motor end cover bearing press-fitting device provided in this embodiment further includes a pressing die guide buffer assembly.

The die guide buffer assembly comprises an annular support platform 502 which is arranged at the top end of the support base 700 and is positioned in an annular region for supporting the rotary table 100, a supporting block 501 which is positioned outside the support rotary table 100, a pair of guide rods of which one ends are respectively arranged on the annular support platform 502 and the supporting block 501, and a return spring 503 which is sleeved on the outer peripheral side of each guide rod; the other ends of the pair of guide rods are fixedly connected with the end faces, facing the lower die assembly, of the die blocks 401. A gap remains between the outer peripheral side of the ring support base 502 and the inner peripheral side of the support turntable 100, so that the provision of the ring support base 502 does not cause resistance and hindrance to the rotation of the support turntable 100. Further, a gap is also left between the support block 501 and the outer circumferential side supporting the turntable 100 to prevent the support block 501 from affecting the rotation of the supporting turntable 100.

Specifically, the guide rod comprises a sliding rod 505 connected with the pressing module 401, and a guide sleeve 507 connected with the annular support platform 502 and the support block 501 respectively; the sliding rod 505 is slidably engaged with the guide sleeve 507. The matching of the sliding rod 505 and the sliding sleeve has a limiting effect on the running track of the upper die assembly, and the upper die assembly can be ensured to be aligned with the lower die assembly to move downwards, so that the centering effect of the die is ensured. The return spring 503 is arranged to return the upper die assembly after the stamping process is completed, so that the energy consumption of the stamping process is effectively reduced.

The principle of the specific embodiment of the motor end cover bearing press-fitting device of the embodiment is as follows:

the supporting turntable 100 drives different lower die assemblies to rotate at regular time, so that the lower die assemblies corresponding to the lower part of the upper die are switched, the speed reduction motor of the turntable driving assembly works at regular time, namely the supporting turntable 100 rotates at regular time, in the process that the supporting turntable 100 stops rotating, the pressure head of the upper die assembly carries out press-mounting operation on the bearing 8 pre-placed in the bearing mounting hole of the motor end cover 9, once press-mounting is completed, and after the pressure head of the upper die assembly completely exits from the motor end cover 9, the supporting turntable 100 can start a new round of rotation to switch the lower die assemblies, so that the lower die assemblies loaded with the motor end cover 9 pre-provided with the bearing 8 move to the position right below the upper die assemblies, and the press-mounting operation of the new round is prepared. Through the switching of the lower die assembly, the motor end cover 9 which completes the bearing installation is convenient to collect manually, and the motor end cover 9 of the bearing 8 to be pressed is loaded. Because in holistic manual operation process, the manual work can not contact the lower die assembly under the upper and lower die assembly, therefore holistic motor end cover bearing pressure equipment device's upper die assembly only need set up fixed frequency's operation progress make the pressure head periodic do the elevating movement can, and need not constantly switch over the formula open close the power structure that the drive ram was the elevating movement, can satisfy the pressure equipment requirement of holistic device, can effectively improve batched motor end cover bearing's pressure equipment operating efficiency from this.

The above embodiments further describe the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

In the description of the present invention, it should be understood that the terms indicating the orientation or the positional relationship are based on the orientation or the positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the products of the present invention are used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the mechanism or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the present disclosure, unless otherwise expressly stated or limited, the first feature may comprise both the first and second features directly contacting each other, and also may comprise the first and second features not being directly contacting each other but being in contact with each other by means of further features between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature being below, beneath or beneath a second feature includes the first feature being directly below and obliquely below the second feature or simply indicating that the first feature is at a lesser level than the second feature.

Claims (10)

1. The utility model provides a motor end cover bearing pressure equipment device which characterized in that includes: the lower die assembly and the upper die assembly are suitable for lifting relative to the lower die assembly;

the upper die assembly is fixedly arranged on a die block; the lower die pressing assembly is arranged on the feeding assembly;

the feeding assembly comprises: the device comprises a supporting base, a supporting turntable which is arranged on the supporting base and used for supporting a lower compression die assembly, and a rotating mechanism which is connected with the supporting turntable so that the supporting turntable rotates relative to the supporting base; the supporting rotary table is of an annular structure, and a plurality of lower die assemblies are uniformly distributed on the upper end surface of the supporting rotary table along the circumferential direction; and

the upper die assembly comprises a positioning column fixedly arranged on the die block and a pressing head detachably assembled with the positioning column;

the lower die pressing assembly comprises a lower die base arranged on the supporting rotary table and a limiting base which is detachably assembled on the lower die base and used for limiting the motor end cover.

2. A press-fitting device for a motor end cover bearing according to claim 1, wherein the press-fitting head comprises a base body in threaded fit with the positioning column, a press-fitting head fixedly connected with the base body and adapted to press against the bearing, and a limiting column connected with one end of the press-fitting head away from the base body and adapted to be inserted into an inner hole of the bearing; and

the outer diameter of the press-fitting head is larger than that of the limiting column.

3. The motor end cover bearing press-fitting device as claimed in claim 1 or 2, wherein a circular accommodating cavity for accommodating the motor end cover is provided in the limiting seat.

4. A motor end cap bearing press fitting device as claimed in claim 3, wherein a circumferential limiting component adapted to abut against the motor end cap from a circumferential side wall of the motor end cap is arranged in the circular accommodating cavity.

5. The press-fitting device for the motor end cover bearing as claimed in claim 4, wherein the circumferential limiting assembly comprises a plurality of clamping plates arranged at intervals along the circumferential direction of the circular accommodating cavity, and springs arranged between the plurality of clamping plates and the inner cavity wall of the circular accommodating cavity in a one-to-one manner; wherein

The clamping plate is in sliding fit with the inner bottom wall of the circular accommodating cavity.

6. A motor end cap bearing press-fitting apparatus as claimed in claim 1, wherein a turntable drive assembly adapted to drive the support turntable in rotation relative to the support base is connected to the support turntable;

the supporting base is connected with the supporting rotary table through an annular sliding assembly; the annular sliding assembly comprises a bearing seat fixedly connected with the supporting base and a rotating bearing fixedly connected with the bearing seat; and the outer ring of the rotating bearing is fixedly connected with the bearing seat, and the inner ring of the rotating bearing is connected with the bottom end surface of the supporting turntable.

7. A press-fitting device for a motor end cap bearing according to claim 6, wherein the rotary table driving assembly comprises a ring gear disposed on the bottom end surface of the supporting rotary table, a pair of driving gears symmetrically disposed on both sides of the ring gear and engaged with the ring gear, and a driver connected to the pair of driving gears for driving the driving gears to rotate.

8. The press-fitting device for the motor end cover bearing as claimed in claim 1, wherein four lower press-die assemblies are arranged on the upper end face of the supporting rotary table; and

and the included angle formed between every two adjacent lower die assemblies in the four lower die assemblies is 90 degrees.

9. A press-fitting device for a motor end cap bearing according to claim 1, further comprising a die guide buffer assembly;

the die guide buffer assembly comprises an annular supporting table, a supporting block, a pair of guide rods and a return spring, wherein the annular supporting table is arranged at the top end of the supporting base and is positioned in an annular interval of the supporting rotary table, the supporting block is positioned outside the supporting rotary table, one end of the guide rod is respectively arranged on the annular supporting table and the supporting block, and the return spring is sleeved on the outer peripheral side of the guide rod;

the other ends of the pair of guide rods are fixedly connected with the end faces, facing the lower die assembly, of the die blocks.

10. The press-fitting device for the motor end cover bearing according to claim 9, wherein the guide rod comprises a sliding rod connected with the die block and a guide sleeve respectively connected with the annular support table and the support block;

the sliding rod is in sliding sleeve joint with the guide sleeve.

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