Bearing press-fitting device for washing machine motor

Abstract

The present application provides a bearing press-fitting device for a washing machine motor, said device comprising a first positioning mechanism, a second positioning mechanism, a stopper assembly, a central shaft limiting piece, and a press-fitting driving mechanism in transmission connection with the second positioning mechanism. The first positioning mechanism comprises a guide member and an elastic supporting assembly which are slidably connected, the elastic supporting assembly being used for elastically supporting a rotor member. The press-fitting driving mechanism is used for driving the second positioning mechanism together with the stopper assembly in the bearing press-fitting direction, so that a workpiece to be press-fitted that is located at an initial position is pressed into a first bearing by the second positioning mechanism by means of the stopper assembly, until the lower end of a central shaft abuts against the central shaft limiting piece. The press-fitting driving mechanism is further used for driving the second positioning mechanism to move in the bearing press-fitting direction, so that the second positioning mechanism directly presses a second bearing into said workpiece, until the lower end of a central shaft abuts against the central shaft limiting piece. The bearing press-fitting device of the present application can precisely press-fit the first bearing and the second bearing, thus improving precision in the assembly of a washing machine motor.

Description

Bearing press-fitting device for washing machine motor Technical Field

[0001] The present application relates to the technical field of washing machine motor assembly, and in particular to a bearing press-fitting device for a washing machine motor. Background Art

[0002] During the assembly process of the motor, two bearings need to be assembled to the two ends of the rotor center shaft respectively. Generally, the press-fitting of the two bearings and the center shaft is achieved by a bearing press-fitting device.

[0003] In the prior art, the press-fitting of two bearings is generally carried out in batches. After press-fitting one bearing, the center axis needs to be rotated 180° before press-fitting the other bearing. However, the rotation of the center axis will inevitably reduce the positioning accuracy of the center axis, resulting in low press-fitting accuracy of the bearings.

[0004] In addition, the press-fitting process of the two bearings is completed in steps. In the prior art, after one bearing is press-fitted, the second bearing is press-fitted while keeping the position unchanged. There are two press-fitting stations. In order to ensure the positioning accuracy of the center axis, it is necessary to re-position the origin to ensure the same degree of the two press-fits, which makes the press-fitting process cumbersome and costly.

[0005] Therefore, an improved bearing press-fitting device is urgently needed to solve the above problems.

[0006] Summary of the Invention

[0007] The present application provides a bearing press-fitting device for a washing machine motor, which can press-fit a first bearing and a second bearing with high precision, thereby improving the assembly accuracy of the washing machine motor.

[0008] The present application provides a bearing press-fitting device for a washing machine motor, which is used to press-fit a first bearing and a second bearing on a workpiece to be press-fitted, wherein the workpiece to be press-fitted includes a central shaft and a rotor member fixedly sleeved on the central shaft. The bearing press-fitting device for a washing machine motor includes:

[0009] A first positioning mechanism is connected to a first bearing accommodating position adapted to the lower end of the central shaft; the first positioning mechanism includes a guide member and an elastic support assembly, the elastic support assembly is located in a cavity of the guide member and is slidably connected to the guide member along the bearing press-fitting direction; the elastic support assembly is used to elastically support the rotor member; a central shaft avoidance portion is provided on the elastic support assembly, and an end of the central shaft facing the first bearing accommodating position can pass through the central shaft avoidance portion;

[0010] A second positioning mechanism is provided with a second bearing receiving position adapted to the upper end of the central shaft;

[0011] a press-fitting drive mechanism, in transmission connection with the second positioning mechanism;

[0012] a resisting assembly adapted to the second bearing receiving position;

[0013] A central shaft stopper adapted to the lower end of the central shaft;

[0014] The press-fitting drive mechanism is used to cooperatively drive the second positioning mechanism and the resisting assembly along the bearing press-fitting direction, so that the second positioning mechanism presses the workpiece to be press-fitted located in the initial position into the first bearing through the resisting assembly until the lower end of the central shaft abuts against the central shaft limiter; the elastic support assembly is also used to drive the workpiece to be press-fitted to return to the initial position after the first bearing is press-fitted;

[0015] The press-fitting drive mechanism is also used to drive the second positioning mechanism to move along the bearing press-fitting direction, so that the second positioning mechanism directly presses the second bearing into the workpiece to be press-fitted until the lower end of the center shaft abuts against the center shaft limiter; the elastic support assembly is also used to buffer the punching force applied by the first bearing to the first bearing accommodating position.

[0016] Furthermore, when the first bearing is press-fitted, the blocking assembly blocks the second bearing accommodation position and, driven by the press-fitting drive mechanism, cooperates with the second positioning mechanism to move, so that the blocking assembly pushes the central shaft into the first bearing accommodation position until it abuts against the central shaft stopper.

[0017] When the second bearing is press-fitted, the resisting assembly releases the second bearing accommodating position, and the second positioning mechanism moves toward the center axis under the drive of the press-fitting driving mechanism, so that the center axis extends into the second bearing accommodating position until it abuts against the center axis limiter.

[0018] Furthermore, the bearing press-fitting device for a washing machine motor further includes a supporting mechanism for fixedly supporting the guide member and the press-fitting drive mechanism.

[0019] Furthermore, the elastic support assembly includes a rotor member bearing member and an elastic support member;

[0020] The rotor component carrier is used to support the rotor component, and the central axis avoidance portion is provided on the rotor component carrier;

[0021] One end of the elastic support member abuts against the rotor member carrier, and the other end of the elastic support member abuts against the support mechanism; the elastic support member is used to reset the bearing position of the rotor member carrier to the initial bearing position after press-fitting;

[0022] The inner side wall of the guide member is provided with a guide groove extending along the bearing press-fitting direction, and the rotor member carrier is provided with a guide protrusion adapted to the guide groove;

[0023] A notch is provided on the lower side wall of the guide member, and a recess is formed on the bottom of the guide member to form a groove that is connected to the notch and matches the shape of the first bearing portion. The notch and the groove together form the first bearing accommodating position.

[0024] Furthermore, a limiting blind hole extending along the bearing press-fitting direction is formed at the upper end of the central shaft limiting member, and the central shaft can be inserted into the limiting blind hole. The ratio of the diameter of the lower end of the central shaft to the diameter of the limiting blind hole is a preset value, and the preset value is 0.95-0.98;

[0025] The projection of the center position of the central axis limiting member along the bearing press-fitting direction respectively coincides with the projection of the center position of the rotor component carrier and the center position of the central axis along the bearing press-fitting direction.

[0026] Furthermore, when the first bearing is press-fitted, the blocking assembly is used to block the second bearing accommodation position, so that when the second positioning mechanism moves along the bearing press-fitting direction, the upper end of the central shaft is blocked from extending into the second bearing accommodation position;

[0027] The resisting assembly includes a first resisting body transmission-connected to the press-fitting driving mechanism and a resisting block provided on the first resisting body;

[0028] The first resisting body can be moved along the bearing press-fitting direction under the drive of the press-fitting driving mechanism, so that the lower end of the resisting block presses against the upper end of the central shaft;

[0029] The blocking block can block or release the second bearing accommodating position so as to hold or release the second bearing.

[0030] Furthermore, the second positioning mechanism is provided with a central axis guide portion, the central axis guide portion is communicated with the second bearing accommodating position and is located on a side of the second bearing accommodating position away from the first positioning mechanism;

[0031] The length direction of the central shaft guide portion is consistent with the press-fitting direction of the bearing; the central shaft can extend into the central shaft guide portion, and the central shaft guide portion is used to guide the press-fitting of the central shaft.

[0032] Furthermore, the second positioning mechanism includes a fixed positioning component and a movable positioning component, and the fixed positioning component is in transmission connection with the press-fitting drive mechanism;

[0033] The movable positioning assembly can extend into the second bearing accommodating position to clamp the second bearing;

[0034] The movable positioning assembly includes a retaining member, an elastic member and a clamping member;

[0035] The retaining member is fixedly connected to the fixed positioning assembly; the retaining member is provided with an accommodating cavity, and the accommodating cavity is used to accommodate the elastic member and the clamping member;

[0036] The elastic member is limitedly connected to the retaining member; both ends of the elastic member are respectively in contact with the clamping member and the retaining member; under the elastic force of the elastic member, the clamping member can extend into the second bearing receiving position to clamp the second bearing;

[0037] The clamping member includes a ball, and the ball is in rolling contact with the second bearing.

[0038] Furthermore, the bearing press-fitting device for a washing machine motor further comprises:

[0039] a first blanking mechanism, fixedly connected to the support mechanism; the first blanking mechanism is used to string together a plurality of the first bearings; the first blanking mechanism is provided with a first blanking position, and the first bearings can be blanked to the first blanking position;

[0040] a first cutting mechanism capable of performing a cutting motion relative to the first blanking position to push the first bearing out of the first blanking position; the first cutting mechanism having a first bearing cutting end capable of performing a cutting motion on the first blanking position;

[0041] A first guiding slope is provided on the cutting end of the first bearing, and the first bearing can fall onto the first guiding slope and can slide along the first guiding slope to the first blanking position;

[0042] a first pushing mechanism for pushing the first bearing to the first bearing accommodating position; the first pushing mechanism comprises a first bearing pushing member, and a first bearing abutting portion is provided at one end of the first bearing pushing member facing the first bearing accommodating position;

[0043] During the press-fitting process of the central shaft and the first bearing, the first bearing abutment portion abuts against the first bearing to limit the first bearing to the first bearing accommodating position;

[0044] The bearing press-fitting device for a washing machine motor further comprises:

[0045] a second blanking mechanism, fixedly connected to the support mechanism; the second blanking mechanism is used to string together a plurality of the second bearings; the second blanking mechanism is provided with a second blanking position, and the second bearings can be blanked to the second blanking position;

[0046] a second cutting mechanism capable of performing a cutting motion relative to the second blanking mechanism to push the second bearing out of the second blanking position; the second cutting mechanism having a second bearing cutting end capable of performing a cutting motion at the second blanking position;

[0047] A second guide slope is provided on the cutting end of the second bearing, and the second bearing can fall onto the second guide slope and slide along the second guide slope to the second blanking position;

[0048] The second pushing mechanism is used to push the second bearing to the second bearing accommodating position.

[0049] Furthermore, the press-fitting drive mechanism includes a drive assembly and a drive adapter, the drive assembly is in transmission connection with the drive adapter, and the drive adapter is fixedly connected to the second positioning mechanism;

[0050] The drive adapter is slidably connected to the support mechanism along the bearing press-fitting direction, and the support mechanism can guide the movement of the drive adapter.

[0051] The present application provides a bearing press-fitting device for a washing machine motor, which has the following beneficial effects:

[0052] The first positioning mechanism in the bearing press-fitting device for a washing machine motor of the present application includes a guide member and an elastic support assembly, the elastic support assembly is located in the cavity of the guide member and is slidably connected to the guide member along the bearing press-fitting direction, the elastic support assembly is used to elastically support the rotor member, the first positioning mechanism can perform movement positioning and guidance of the workpiece to be press-fitted in the bearing press-fitting direction, improve the movement accuracy of the central shaft, and thus improve the press-fitting accuracy of the first bearing and the second bearing; the press-fitting drive mechanism is used to cooperatively drive the second positioning mechanism and the resisting assembly along the bearing press-fitting direction, so that the second positioning mechanism presses the workpiece to be press-fitted located in the initial position into the first bearing through the resisting assembly until the lower end of the central shaft abuts against the central shaft limiter. After the first bearing is press-fitted, the elastic support assembly The pressing drive mechanism is also used to drive the second positioning mechanism to move along the bearing pressing direction, so that the second positioning mechanism directly presses the second bearing into the workpiece to be pressed until the lower end of the center shaft abuts against the center shaft limiter. During the pressing process of the second bearing, the elastic support assembly can also buffer the punching force applied by the first bearing to the first bearing accommodating position. The bearing pressing device for the washing machine motor of the present application can press the first bearing and the second bearing in batches, and after pressing the first bearing, there is no need to flip the workpiece to be pressed, and the second bearing can be directly pressed, which can improve the positioning accuracy of the workpiece to be pressed during the entire pressing process, thereby improving the pressing accuracy of the first bearing and the second bearing, and improving the assembly accuracy of the washing machine motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0054] FIG1 is a schematic structural diagram of a bearing press-fitting device for a washing machine motor provided in an embodiment of the present application;

[0055] FIG2 is a partial cross-sectional view of a bearing press-fitting device for a washing machine motor provided in an embodiment of the present application;

[0056] FIG3 is a partial enlarged view of a location provided in an embodiment of the present application;

[0057] FIG4 is a partial enlarged view of location II provided in an embodiment of the present application;

[0058] FIG5 is a schematic structural diagram of a guide member and a rotor bearing member provided in an embodiment of the present application;

[0059] FIG6 is a schematic structural diagram of a rotor component and a rotor carrier provided in an embodiment of the present application;

[0060] FIG7 is a partial structural diagram of a bearing press-fitting device for a washing machine motor provided in an embodiment of the present application;

[0061] FIG8 is a schematic structural diagram of a bearing press-fitting device for a washing machine motor provided in an embodiment of the present application;

[0062] FIG9 is a partial enlarged view of point III provided in an embodiment of the present application;

[0063] FIG10 is a schematic structural diagram of a first cutting mechanism and a first pushing mechanism provided in an embodiment of the present application;

[0064] FIG11 is a schematic structural diagram of a first bearing ejector and a first bearing provided in an embodiment of the present application;

[0065] FIG12 is a schematic structural diagram of a second cutting mechanism and a second pushing mechanism provided in an embodiment of the present application;

[0066] FIG13 is a schematic diagram of a partial structure of a bearing press-fitting device for a washing machine motor provided in an embodiment of the present application.

[0067] The following is a supplementary description of the accompanying drawings:

[0068] 10-Workpiece to be press-fitted; 11-Center shaft; 12-Rotor member; 1201-Bearing positioning portion; 20-First bearing; 30-Second bearing; 40-First positioning mechanism; 41-First bearing accommodation position; 42-Guide member; 421-Guide groove; 422-Notch; 423-Sunk groove; 43-Elastic support assembly; 431-Center shaft avoidance portion; 432-Rotor bearing member; 4321-Guide protrusion; 433-Elastic support member; 50-Second positioning mechanism; 51-Second bearing accommodation position; 52-Center shaft guide portion; 53-Fixed positioning assembly; 54-Movable positioning assembly; 541-Retaining member; 5411-Accommodating cavity; 542-Elastic member; 543-Clamping member; 60-Press-fitting drive mechanism; 61-Drive assembly; 62-driving adapter; 70-resistance assembly; 71-first resisting body; 72-resistance block; 73-second resisting body; 80-center axis limiter; 81-limiting blind hole; 90-support mechanism; 91-support assembly; 92-guide column; 100-first blanking mechanism; 101-first blanking position; 102-first stringing shaft; 110-first cutting mechanism; 111-first bearing cutting end; 1111-first guide slope; 120-first pushing mechanism; 121-first bearing ejector; 1211-first bearing abutment portion; 130-second blanking mechanism; 131-second blanking position; 140-second cutting mechanism; 141-second bearing cutting end; 1411-second guide slope; 150-second pushing mechanism. DETAILED DESCRIPTION

[0069] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of this application.

[0070] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, device, product or equipment that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0071] The following describes the technical solutions in the embodiments of the present application in conjunction with the accompanying drawings, which do not limit the application content described in the claims.

[0072] This specification provides method operation steps such as embodiments or flow charts, but based on routine or non-creative work, more or fewer operation steps may be included. The order of steps listed in the embodiments is only one way of executing the steps among many, and does not represent the only execution order.

[0073] Please refer to Figures 1-13. The embodiment of the present application provides a bearing pressing device for a washing machine motor, which is used to press the first bearing 20 and the second bearing 30 on the workpiece 10 to be pressed. The workpiece 10 to be pressed includes a central shaft 11 and a rotor part 12 fixedly sleeved on the central shaft 11. The bearing pressing device for a washing machine motor provided by the embodiment of the present application includes: a first positioning mechanism 40, which is connected to a first bearing accommodating position 41 adapted to the lower end of the central shaft 11; the first positioning mechanism 40 includes a guide member 42 and an elastic support component 43, the elastic support component 43 is located in the cavity of the guide member 42 and is slidably connected to the guide member 42 along the bearing pressing direction; the elastic support component 43 is used to elastically support the rotor part 12; a central shaft avoidance portion 431 is provided on the elastic support component 43, and an end of the central shaft 11 facing the first bearing accommodating position 41 can pass through the central shaft avoidance portion 431; a second positioning mechanism 50 is provided with a second bearing accommodating position adapted to the upper end of the central shaft 11 Position 51; the press-fitting drive mechanism 60 is transmission-connected to the second positioning mechanism 50; the resisting assembly 70 is adapted to the second bearing accommodating position 51; the central shaft limiter 80 is adapted to the lower end of the central shaft 11; the press-fitting drive mechanism 60 is used to cooperatively drive the second positioning mechanism 50 and the resisting assembly 70 along the bearing press-fitting direction, so that the second positioning mechanism 50 presses the workpiece to be pressed 10 located in the initial position into the first bearing 20 through the resisting assembly 70, until the lower end of the central shaft 11 abuts against the central shaft limiter 80; the elastic support assembly 43 is also used to drive the workpiece to be pressed 10 to return to the initial position after the first bearing 20 is press-fitted; the press-fitting drive mechanism 60 is also used to drive the second positioning mechanism 50 to move along the bearing press-fitting direction, so that the second positioning mechanism 50 directly presses the second bearing 30 into the workpiece to be pressed 10, until the lower end of the central shaft 11 abuts against the central shaft limiter 80; the elastic support assembly 43 is also used to buffer the punching force applied by the first bearing 20 to the first bearing accommodating position 41.

[0074] In this embodiment, the press-fitting direction is defined as the up-down direction, and the central axis 11 extends in the up-down direction.

[0075] In some embodiments, the first bearing accommodating position 41 is disposed within the first positioning mechanism 40; the first bearing accommodating position 41 and the second bearing accommodating position 51 are respectively disposed on either side of the central shaft avoidance portion 431. Specifically, the first bearing accommodating position 41 is disposed below the central shaft avoidance portion 431, and the second bearing accommodating position 51 is disposed above the central shaft avoidance portion 431. Preferably, when not press-fitted, the first bearing accommodating position 41 and the second bearing accommodating position 51 are both disposed separately from the central shaft 11.

[0076] Furthermore, the upper end of the center shaft 11 and the lower end of the center shaft 11 are respectively protruded from the rotor part 12; the elastic support component 43 can support the workpiece 10 to be pressed, specifically, the elastic support component 43 can support the rotor part 12, and the lower end of the center shaft 11 passes through the center shaft avoidance portion 431 toward the first bearing accommodating position 41 and extends into the cavity of the guide part 42.

[0077] Furthermore, one end of the elastic support assembly 43 away from the second bearing receiving position 51 is fixed relative to the position of the guide member 42, and the end of the elastic support assembly 43 close to the second bearing receiving position 51 is a free end that can move along the bearing press-fitting direction. The workpiece 10 to be press-fitted is supported on the free end of the elastic support assembly 43. Preferably, the workpiece 10 to be press-fitted is supported horizontally on the free end of the elastic support assembly 43.

[0078] Specifically, the elastic force direction of the elastic support component 43 is parallel to the bearing pressing direction, that is, both are in the up and down direction; under the action of external force, the free end of the elastic support component 43 can move relative to the guide member 42 along the bearing pressing direction toward the first bearing accommodating position 41, until the lower end of the center axis 11 abuts against the center axis limit member 80; it is worth noting that when the external force is cancelled, under the action of the elastic reset force of the elastic support component 43, the free end of the elastic support component 43 can move relative to the guide member 42 along the bearing pressing direction away from the first bearing accommodating position 41, so that the workpiece 10 to be pressed is reset to its initial position.

[0079] Specifically, the first bearing accommodating position 41 is adapted to the first bearing 20 , and the first bearing accommodating position 41 is used to accommodate the first bearing 20 ; correspondingly, the second bearing accommodating position 51 is adapted to the second bearing 30 , and the second bearing accommodating position 51 is used to accommodate the second bearing 30 .

[0080] Furthermore, the resisting end of the resisting assembly 70 can move to a first position between the first positioning mechanism 40 and the second positioning mechanism 50 relative to the second positioning mechanism 50 to meet the press-fitting of the first bearing 20, and can also move away from the first position to a second position relative to the second positioning mechanism 50 to meet the press-fitting of the second bearing 30.

[0081] Furthermore, the center shaft limiter 80 is arranged on the side of the first bearing accommodating position 41 away from the center shaft avoidance portion 431; the relative position of the center shaft limiter 80 and the guide member 42 is fixed, and the center shaft limiter 80 is used to abut against the center shaft 11 to limit the downward movement stroke of the workpiece 10 to be pressed away from the second bearing accommodating position 51.

[0082] Specifically, when the first bearing 20 is press-fitted, the resisting end of the resisting assembly 70 moves horizontally to the first position, and the press-fitting drive mechanism 60 can cooperatively drive the second positioning mechanism 50 and the resisting assembly 70 to move along the bearing press-fitting direction (up and down directions) toward the first bearing accommodating position 41. At this time, the spatial position of the center axis 11 at this time can be defined as the press-fitting position. After the resisting end of the resisting assembly 70 abuts against the upper end of the center axis 11, the press-fitting drive mechanism 60 can press the center axis 11 downward through the second positioning mechanism 50 and the resisting assembly 70 until the lower end of the center axis 11 abuts against the center axis limit member 80. During this period, the lower end of the center axis 11 passes through the first bearing 20 from top to bottom to complete the press-fitting of the center axis 11 and the first bearing 20, and the elastic support assembly 43 moves downward following the center axis 11.

[0083] It is worth noting that after the press-fitting drive mechanism 60 unloads the force, the elastic support assembly 43 can rely on its own elastic force to lift the center shaft 11 that has completed the press-fitting of the first bearing 20 upward until the center shaft 11 moves to the press-fitting position, ensuring that the position of the center shaft 11 remains unchanged when the first bearing 20 and the second bearing 30 are press-fitted. There is no need to perform the original positioning operation, nor is there any need to use other drive mechanisms for resetting, and the structure is simpler.

[0084] Specifically, when the second bearing 30 is press-fitted, the resisting end of the resisting assembly 70 moves to the second position, and the press-fitting drive mechanism 60 can drive the second positioning mechanism 50 to move along the bearing press-fitting direction toward the first bearing accommodating position 41, so that the second positioning mechanism 50 directly passes the second bearing 30 into the center shaft 11 from above the center shaft 11, until the lower end of the center shaft 11 abuts against the center shaft limit member 80, thereby completing the press-fitting of the center shaft 11 and the second bearing 30.

[0085] It is understandable that during the press-fitting process of the second bearing 30 , the resisting assembly 70 does not need to transmit force, and the press-fitting driving mechanism 60 can directly achieve the press-fitting of the second bearing 30 through the second positioning mechanism 50 .

[0086] It can be understood that during the press-fitting process of the first bearing 20 and the press-fitting process of the second bearing 30, the elastic support assembly 43 can carry the workpiece 10 to be pressed to move relative to the guide member 42 along the bearing pressing direction, so as to accurately position and guide the workpiece 10 to be pressed, thereby improving the movement accuracy of the center axis, and thereby improving the press-fitting accuracy of the first bearing and the second bearing.

[0087] The first positioning mechanism in the bearing pressing device for a washing machine motor of the present application includes a guide member and an elastic support assembly, the elastic support assembly is located in the cavity of the guide member and is slidably connected to the guide member along the bearing pressing direction, the elastic support assembly is used to elastically support the rotor member, the first positioning mechanism can perform movement positioning and guidance of the workpiece to be pressed in the bearing pressing direction, thereby improving the movement accuracy of the central shaft, and thus improving the pressing accuracy of the first bearing and the second bearing; the pressing drive mechanism is used to cooperatively drive the second positioning mechanism and the resisting assembly along the bearing pressing direction, so that the second positioning mechanism presses the workpiece to be pressed in the initial position into the first bearing through the resisting assembly, until the lower end of the central shaft abuts against the central shaft limit member, and after the first bearing is pressed, the elastic support assembly can drive the workpiece to be pressed to return to the initial position to ensure that the workpiece is pressed in the pressing direction. When the first bearing 20 and the second bearing 30 are in position, the position of the center shaft 11 remains unchanged, and the original positioning operation is no longer required; the pressing drive mechanism is also used to drive the second positioning mechanism to move along the bearing pressing direction, so that the second positioning mechanism directly presses the second bearing into the workpiece to be pressed until the lower end of the center shaft abuts against the center shaft limiter. During the pressing process of the second bearing, the elastic support assembly can also buffer the punching force applied by the first bearing to the first bearing accommodating position. The bearing pressing device used for the washing machine motor in this application can press the first bearing and the second bearing in batches, and after pressing the first bearing, there is no need to flip the workpiece to be pressed, and the second bearing can be directly pressed, which can improve the positioning accuracy of the workpiece to be pressed during the entire pressing process, thereby improving the pressing accuracy of the first bearing and the second bearing, and improving the assembly accuracy of the washing machine motor.

[0088] In the embodiment of the present application, when the first bearing 20 is press-fitted, the resisting assembly 70 blocks the second bearing accommodating position 51 and, driven by the press-fitting drive mechanism 60, cooperates with the second positioning mechanism 50 to move, so that the resisting assembly 70 pushes the center shaft 11 into the first bearing accommodating position 41 until it abuts against the center shaft limiter 80; when the second bearing 30 is press-fitted, the resisting assembly 70 releases the second bearing accommodating position 51, and the second positioning mechanism 50 moves toward the center shaft 11 under the drive of the press-fitting drive mechanism 60, so that the center shaft 11 extends into the second bearing accommodating position 51 until it abuts against the center shaft limiter 80.

[0089] Specifically, when the resisting end of the resisting assembly 70 moves to the first position, it can block the second bearing accommodating position 51, and use mechanical limiting to push the central shaft 11; when the resisting end of the resisting assembly 70 moves to the second position, the resisting end of the resisting assembly 70 can release the second bearing accommodating position 51, allowing the central shaft 11 to be directly inserted into the second bearing accommodating position 51. The provision of the resisting assembly 70 can achieve the stepwise press-fitting of the first bearing 20 and the second bearing 30 without rotating the workpiece 10 to be press-fitted, thereby improving the press-fitting accuracy of the first bearing 20 and the second bearing 30.

[0090] In the embodiment of the present application, the bearing press-fitting device for a washing machine motor further includes a support mechanism 90 for fixing the support guide 42 and the press-fitting drive mechanism 60 .

[0091] Specifically, the support guide 42 is fixedly connected to the support mechanism 90 , and the press-fitting drive mechanism 60 is fixedly connected to the support mechanism 90 ; the support mechanism 90 provides fixed support for the fixed support guide 42 and the press-fitting drive mechanism 60 .

[0092] In the embodiment of the present application, the elastic support assembly 43 includes a rotor carrier 432 and an elastic support 433; the rotor carrier 432 is used to support the rotor part 12, and the central axis avoidance portion 431 is provided on the rotor carrier 432; one end of the elastic support 433 abuts against the rotor carrier 432, and the other end of the elastic support 433 abuts against the support mechanism 90; the elastic support 433 is used to reset the carrying position of the rotor carrier 432 to the initial carrying position after press-fitting; a guide groove 421 extending along the bearing press-fitting direction is provided on the inner side wall of the guide member 42, and a guide protrusion 4321 adapted to the guide groove 421 is provided on the rotor carrier 432; a notch 422 is provided on the lower end side wall of the guide member 42, and the bottom of the guide member 42 is recessed to form a recessed groove 423 that is connected to the notch 422 and adapted to the shape of part of the first bearing 20, and the notch 422 and the recessed groove 423 together form the first bearing accommodating position 41.

[0093] Furthermore, a bearing positioning portion 1201 is provided at the end of the rotor component 12 facing the lower end of the central shaft 11, and the central shaft avoidance portion 431 is adapted to the bearing positioning portion 1201 to achieve reliable positioning of the rotor component 12 by the rotor bearing component 432 through the central shaft avoidance portion 431 and the bearing positioning portion 1201.

[0094] Furthermore, the central axis avoidance portion 431 is a U-shaped opening avoidance portion, so that the workpiece 10 to be pressed can be placed from the side of the rotor carrier 432 , thereby improving the convenience of placing the workpiece 10 to be pressed on the rotor carrier 432 .

[0095] In some embodiments, the elastic force direction of the elastic support member 433 is parallel to the bearing press-fitting direction. Specifically, the elastic support member 433 may be a first spring.

[0096] In some embodiments, the elastic support member 43 is arranged on a side of the rotor carrier 432 close to the first bearing accommodating position 41, the end of the elastic support member 43 away from the second bearing accommodating position 51 abuts against the support mechanism 90, and the end of the elastic support member 43 close to the second bearing accommodating position 51 abuts against the rotor carrier 432.

[0097] Specifically, under the action of external force, the rotor carrier 432 can move toward the first bearing accommodating position 41 and compress the elastic support member 43; when the external force is removed, due to the elastic reset force of the elastic support member 43, the elastic support member 43 can drive the rotor carrier 432 to perform a reset movement away from the first bearing accommodating position 41 until it returns to the initial bearing position.

[0098] Specifically, the guide protrusion 4321 can slide in the guide groove 421 along the bearing press-fitting direction to achieve a sliding connection between the rotor carrier 432 and the guide member 42 along the bearing press-fitting direction, thereby achieving guidance of the rotor carrier 432 by the guide member 42 along the bearing press-fitting direction.

[0099] It should be noted that the number of elastic support members 433 , guide protrusions 4321 and guide grooves 421 is determined according to actual conditions, and this application does not limit the number of elastic support members 433 , guide protrusions 4321 and guide grooves 421 .

[0100] Preferably, the elastic support assembly 43 includes two elastic support members 433 ; two guide grooves 421 are provided on the inner side wall of the guide member 42 , and correspondingly, two guide protrusions 4321 are provided on the rotor carrier 432 .

[0101] Furthermore, the first bearing 20 can be loaded into the first bearing accommodating position 41 through the notch 422 , and the notch 422 facilitates loading of the first bearing 20 .

[0102] Furthermore, the recessed groove 423 is used to accommodate the first bearing 20 , and the sidewall of the recessed groove 423 is used to position the first bearing 20 .

[0103] In the embodiment of the present application, a limiting blind hole 81 extending along the bearing press-fitting direction is formed at the upper end of the center shaft limiting member 80, and the center shaft 11 can be inserted into the limiting blind hole 81. The ratio of the diameter of the lower end of the center shaft 11 to the diameter of the limiting blind hole 81 is a preset value, which is 0.95-0.98; the projection of the center position of the center shaft limiting member 80 along the bearing press-fitting direction coincides with the projection of the center position of the rotor carrier 432 and the center position of the center shaft 11 along the bearing press-fitting direction.

[0104] Furthermore, the central shaft limiting member 80 is disposed below the first bearing accommodating position 41 , and the central shaft limiting member 80 is fixedly connected to the supporting mechanism 90 .

[0105] Furthermore, the limiting blind hole 81 is provided at one end of the central axis limiting member 80 facing the first bearing accommodating position 41 , and the opening of the limiting blind hole 81 is provided toward the first bearing accommodating position 41 .

[0106] Specifically, the sinking direction of the limiting blind hole 81 is consistent with the bearing pressing direction; during the pressing process of the workpiece 10 to be pressed along the bearing pressing direction, the lower end of the center shaft 11 can extend into the limiting blind hole 81; the side wall of the limiting blind hole 81 is used to guide the movement of the center shaft 11; the bottom wall of the limiting blind hole 81 is used to abut against the lower end of the center shaft 11 to limit the downward movement stroke of the center shaft 11.

[0107] Specifically, the ratio of the diameter of the lower end of the central shaft 11 to the diameter of the limiting blind hole 81 is a preset value, which is 0.95-0.98. In this way, it can ensure that the lower end of the central shaft 11 smoothly extends into the limiting blind hole 81, and the limiting blind hole 81 can guide the movement of the central shaft 11.

[0108] Furthermore, the projection of the center position of the limiting blind hole 81 along the bearing press-fitting direction, the projection of the center position of the first bearing accommodating position 41 along the bearing press-fitting direction, the projection of the center position of the central axis avoidance portion 431 along the bearing press-fitting direction and the projection of the center position of the second bearing accommodating position 51 along the bearing press-fitting direction coincide with each other, so as to ensure the coaxiality of the limiting blind hole 81, the first bearing accommodating position 41, the central axis avoidance portion 431 and the second bearing accommodating position 51, thereby improving the bearing press-fitting accuracy of the bearing press-fitting device.

[0109] In an embodiment of the present application, a center axis guide portion 52 is provided on the second positioning mechanism 50, which is connected to the second bearing accommodating position 51 and is located on the side of the second bearing accommodating position 51 away from the first positioning mechanism 40; the length direction of the center axis guide portion 52 is consistent with the bearing press-fitting direction; the center axis 11 can extend into the center axis guide portion 52, and the center axis guide portion 52 is used to press-fit the center axis 11.

[0110] Furthermore, the second bearing accommodating position 51 is provided on the end side of the second positioning mechanism 50 facing the first positioning mechanism 40 ; the second bearing accommodating position 51 is a bearing accommodating position that is open toward the first positioning mechanism 40 .

[0111] Specifically, during the press-fitting process of the second bearing 30, the center shaft 11 can pass through the two bearing accommodating positions 51 from bottom to top along the bearing press-fitting direction and then extend into the center shaft guide portion 52. The center shaft guide portion 52 can guide the center shaft 11 for press-fitting to improve the press-fitting accuracy of the second bearing 30.

[0112] In the embodiment of the present application, when the first bearing 20 is pressed, the resisting assembly 70 is used to block the second bearing accommodating position 51, so that during the movement of the second positioning mechanism 50 along the bearing pressing direction, the upper end of the central shaft 11 is blocked from extending into the second bearing accommodating position 51; the resisting assembly 70 includes a first resisting body 71 that is transmission-connected to the pressing drive mechanism 60 and a resisting block 72 arranged on the first resisting body 71, preferably, the resisting block 72 is located in a horizontal plane; the first resisting body 71 can be driven by the pressing drive mechanism 60 to move along the bearing pressing direction, so that the lower end of the resisting block 72 that blocks the second bearing accommodating position 51 presses against the upper end of the central shaft 11; the resisting block 72 is driven by the first resisting body 71 in the horizontal plane, and can thereby block or release the second bearing accommodating position 51, so as to be able to drag or release the second bearing 30.

[0113] Specifically, when the first bearing 20 is pressed, the resisting end of the resisting assembly 70 moves to the first position. At this time, the resisting end of the resisting assembly 70 can block the second bearing accommodating position 51 in the up and down directions to prevent the upper end of the center shaft 11 from extending into the second bearing accommodating position 51 during the downward pressing process of the second positioning mechanism 50. It can also enable the upper end of the center shaft 11 to be abutted by the resisting assembly 70 and effectively pressed downward.

[0114] Furthermore, the resisting end is arranged on the resisting block 72, and the resisting end is used to block the second bearing accommodating position 51, and the resisting end is also used to press the upper end of the central shaft 11; the first resisting body 71 is transmission-connected to the resisting block 72, and the first resisting body 71 can drive the resisting block 72 to move accordingly in the horizontal plane so that the resisting end moves to the first position or the second position.

[0115] Furthermore, the resisting assembly 70 also includes a second resisting body 73, the press-fitting drive mechanism 60 is transmission-connected to the second resisting body 73, and the second resisting body 73 is transmission-connected to the first resisting body 71; the second resisting body 73 can drive the first resisting body 71 to move along the bearing press-fitting direction relative to the second positioning mechanism 50, so that the resisting end is close to the second bearing accommodating position 51 or away from the second bearing accommodating position 51 along the bearing press-fitting direction.

[0116] Specifically, the second resisting body 73 can drive the resisting end to move along the bearing pressing direction, and the first resisting body 71 can drive the resisting end to move between the first position and the second position. In this way, the resisting end can be brought into contact with the second positioning mechanism 50, and friction with the second positioning mechanism 50 can be prevented when the resisting end moves between the first position and the second position.

[0117] In some specific embodiments, the first resist body 71 can be driven to descend along the bearing press-fitting direction by the second resist body 73, and then the resist end can be driven to move from the second position to the first position by the first resist body 71, and then the first resist body 71 can be driven to rise along the bearing press-fitting direction by the second resist body 73 until the resist end abuts against the second positioning mechanism 50. At this time, the resist end can drag the second bearing 30, and the resist end and the second bearing accommodating position 51 can jointly hold the second bearing 30, thereby improving the reliability of loading the second bearing 30; after the loading of the second bearing 30 is completed, the first resist body 71 can be driven to descend along the bearing press-fitting direction by the second resist body 73 until there is a preset gap between the resist end and the second positioning mechanism 50, and then the resist end can be driven to move from the first position to the second position by the first resist body 71 to release the second bearing 30.

[0118] It can be understood that the first position and the second position are both relative to the first resisting body 71. The first position can be the position of the resisting end of the resisting block 72 when it is extended relative to the first resisting body 71. Correspondingly, the second position can be the position of the resisting end of the resisting block 72 when it is retracted relative to the first resisting body 71.

[0119] In the embodiment of the present application, the second positioning mechanism 50 includes a fixed positioning component 53 and a movable positioning component 54. The fixed positioning component 53 is transmission-connected to the press-fitting drive mechanism 60; the movable positioning component 54 can extend into the second bearing accommodating position 51 to clamp the second bearing 30.

[0120] In an embodiment of the present application, the movable positioning assembly 54 includes a retaining member 541, an elastic member 542 and a clamping member 543; the retaining member 541 is fixedly connected to the fixed positioning assembly 53; a receiving cavity 5411 is provided on the retaining member 541, and the receiving cavity 5411 is used to receive the elastic member 542 and the clamping member 543; the elastic member 542 is limitedly connected to the retaining member 541; the two ends of the elastic member 542 are respectively in contact with the clamping member 543 and the retaining member 541; under the elastic force of the elastic member 542, the clamping member 543 can extend into the second bearing receiving position 51 to clamp the second bearing 30; the clamping member 543 includes a ball, and the ball rolls and abuts against the second bearing 30.

[0121] Specifically, the accommodating cavity 5411 is a cavity that is opened toward one end of the second bearing accommodating position 51 , and the accommodating cavity 5411 extends in the horizontal direction.

[0122] Specifically, a clamping member anti-slip structure is provided at one end of the retaining member 541 facing the second bearing accommodating position 51 , and the clamping member anti-slip structure is used to limit the clamping member 543 to prevent the clamping member 543 from slipping out of the accommodating cavity 5411 .

[0123] Specifically, one end of the elastic member 542 abuts against the clamping member 543, and the other end of the elastic member 542 abuts against the bottom wall of the accommodating cavity 5411, and the elastic member 542 extends in the horizontal direction; the clamping member 543 can slide in the accommodating cavity 5411; the elastic member 542 is always in a compressed state, and under the action of the elastic reset force of the elastic member 542, the clamping member 543 can slide relative to the retaining member 541 and extend into the second bearing accommodating position 51 to elastically clamp the second bearing 30.

[0124] Specifically, the elastic member 542 may be a second spring.

[0125] It should be noted that the number of movable positioning components 54 is determined according to actual conditions, and this application does not limit the number of movable positioning components 54.

[0126] Preferably, the second positioning mechanism 50 includes two groups of symmetrically arranged movable positioning components 54 to improve the clamping effect on the second bearing 30. Specifically, when the second bearing 30 is pushed in horizontally, the opposite sides of the second bearing 30 can respectively abut against the two clamping members 543, and gradually increase the compression amount of the elastic member 542 until the second bearing 30 is pushed into place, and the two clamping members 543 can continue to abut against the second bearing 30, thereby achieving the clamping action of the second bearing. It is also worth noting that the abutting end of the first abutting body 71 can drag the second bearing 30 during the process of the second bearing 30 being pushed in, so that the second bearing 30 can always be located in the horizontal plane to ensure the accuracy of the press-fitting, and there is no need to add other structures, which reflects that the structure of this application is simple and compact.

[0127] In an embodiment of the present application, the first blanking mechanism 100 is fixedly connected to the support mechanism 90; the first blanking mechanism 100 is used to string together multiple first bearings 20; a first blanking position 101 is provided on the first blanking mechanism 100, and the first bearing 20 can be dropped to the first blanking position 101; the first cutting mechanism 110 can perform a cutting movement relative to the first blanking position 101 to push the first bearing 20 out of the first blanking position 101; the first pushing mechanism 120 is used to push the first bearing 20 to the first bearing accommodating position 41.

[0128] Furthermore, the first blanking mechanism 100 includes at least one first stringing shaft 102, which is used to string together multiple first bearings 20; the first blanking position 101 is arranged below the first stringing shaft 102; the first bearing 20 can be dropped to the first blanking position 101 under the action of gravity.

[0129] Furthermore, the first pushing mechanism 120 may include a first pushing assembly and a second pushing assembly. The first pushing assembly is used to push the first bearing 20 in one direction, and the second pushing assembly is used to push the first bearing 20 in another direction.

[0130] It can be understood that the first bearing 20 is pushed to the first bearing accommodating position 41 by the first cutting mechanism 110 , the first pushing assembly and the second pushing assembly in sequence.

[0131] It should be noted that the specific structure of the first pushing mechanism 120 depends on the actual situation, and this application does not limit the specific structure of the first pushing mechanism 120.

[0132] In the embodiment of the present application, the first cutting mechanism 110 has a first bearing cutting end 111, which can perform a cutting motion on the first blanking position 101. The first bearing cutting end 111 is provided with a first guide slope 1111, and the first bearing 20 can fall onto the first guide slope 1111 and slide along the first guide slope 1111 to the first blanking position 101. With this arrangement, only a horizontal cutting force is required, and the weight of the first bearing 20 is then utilized to complete the blanking action. This is smooth and gentle, does not damage the bearing surface, and has high blanking efficiency.

[0133] In an embodiment of the present application, the first pushing mechanism 120 includes a first bearing ejection member 121, and a first bearing abutment portion 1211 is provided at one end of the first bearing ejection member 121 facing the first bearing accommodating position 41; during the press-fitting process of the center shaft 11 and the first bearing 20, the first bearing abutment portion 1211 abuts against the first bearing 20 so as to limit the first bearing 20 to the first bearing accommodating position 41.

[0134] Specifically, the second pushing assembly includes a first bearing pushing member 121 ; the first bearing abutting portion 1211 is used to abut against the first bearing 20 .

[0135] Specifically, during the press-fitting process of the first bearing 20, the first bearing abutment portion 1211 always abuts against the first bearing 20 to position the first bearing 20. Specifically, during the press-fitting process, due to the influence of punching force, machining errors, etc., if the abutment of the first bearing abutment portion 1211 is removed, the position of the first bearing 20 can easily shift, thereby affecting the press-fitting qualification rate. However, the present application utilizes the first bearing abutment portion 1211, which not only facilitates the loading of the first bearing 20 but also ensures the stability of the position of the first bearing 20 during the press-fitting process.

[0136] In an embodiment of the present application, the second blanking mechanism 130 is fixedly connected to the support mechanism 90; the second blanking mechanism 130 is used to string together multiple second bearings 30; a second blanking position 131 is provided on the second blanking mechanism 130, and the second bearing 30 can be dropped to the second blanking position 131; the second cutting mechanism 140 can perform a cutting movement relative to the second blanking mechanism 130 to push the second bearing 30 out from the second blanking position 131; the second pushing mechanism 150 is used to push the second bearing 30 to the second bearing accommodating position 51.

[0137] Furthermore, the second blanking mechanism 130 includes at least one second stringing shaft 132, which is used to string together multiple second bearings 30; the second blanking position 131 is arranged below the second stringing shaft 132; the second bearings 30 can be dropped to the second blanking position 131 under the action of gravity.

[0138] Furthermore, the second pushing mechanism 150 may include a third pushing assembly and a fourth pushing assembly, wherein the third pushing assembly is used to push the second bearing 30 in one direction, and the fourth pushing assembly is used to push the second bearing 30 in another direction.

[0139] It can be understood that the second bearing 30 is pushed to the second bearing accommodating position 51 by the second cutting mechanism 140 , the third pushing assembly and the fourth pushing assembly in sequence.

[0140] It should be noted that the specific structure of the second pushing mechanism 150 depends on the actual situation, and this application does not limit the specific structure of the second pushing mechanism 150.

[0141] Specifically, during the process of loading the second bearing 30 into the second bearing accommodating position 51 , the stop block 72 abuts against the second positioning mechanism 50 , and the stop block 72 and the second bearing accommodating position 51 can jointly hold the second bearing 30 , thereby improving the reliability of loading the second bearing 30 .

[0142] In an embodiment of the present application, the second cutting mechanism 140 has a second bearing cutting end 141, which can perform cutting movement on the second blanking position 131; a second guide slope 1411 is provided on the second bearing cutting end 141, and the second bearing 30 can fall onto the second guide slope 1411 and can slide along the second guide slope 1411 to the second blanking position 131.

[0143] In an embodiment of the present application, the pressing drive mechanism 60 includes a driving component 61 and a driving adapter 62. The driving component 61 is transmission-connected to the driving adapter 62, and the driving adapter 62 is fixedly connected to the second positioning mechanism 50; the driving adapter 62 is slidingly connected to the support mechanism 90 along the bearing pressing direction, and the support mechanism 90 can guide the movement of the driving adapter 62.

[0144] Furthermore, the support mechanism 90 includes a support assembly 91 and a guide column 92 , and the support assembly 91 and the guide column 92 are fixedly connected.

[0145] Furthermore, the support assembly 91 is used to fix the support guide member 42 , the central axis limit member 80 and the press-fit drive mechanism 60 .

[0146] Furthermore, the length direction of the guide column 92 is consistent with the bearing press-fitting direction, and the drive adapter 62 is slidably connected to the guide column 92 along the bearing press-fitting direction to achieve motion guidance of the drive adapter 62, thereby improving the press-fitting accuracy of the bearing press-fitting device.

[0147] The following describes the press-fitting process of the bearing press-fitting device for a washing machine motor provided by an embodiment of the present application in conjunction with a specific application scenario, which at least includes:

[0148] 1. Loading the first bearing 20: The first bearing 20 is pushed in sequence by the first cutting mechanism 110, the first pushing assembly, and the second pushing assembly to the first bearing accommodating position 41; after the loading of the first bearing 20 is completed, during the press-fitting process of the first bearing 20, the first bearing abutment portion 1211 does not retreat, and the first bearing abutment portion 1211 always abuts against the first bearing 20 to limit the first bearing 20 to the first bearing accommodating position 41.

[0149] 2. Press-fitting of the first bearing 20: the retaining block 72 moves to block the second bearing accommodating position 51, and the press-fitting drive mechanism 60 presses down the center shaft 11 through the second positioning mechanism 50 and the retaining block 72 until the lower end of the center shaft 11 abuts against the center shaft limiter 80, thereby completing the press-fitting of the first bearing 20; during this period, the elastic support assembly 43 moves, positions and guides the workpiece 10 to be press-fitted; after the press-fitting of the first bearing 20 is completed, the elastic support assembly 43 drives the workpiece 10 to be press-fitted to return to its initial position.

[0150] 3. Loading the second bearing 30: The second bearing 30 is pushed in sequence by the second cutting mechanism 140, the third pushing assembly and the fourth pushing assembly to the second bearing accommodating position 51; in the process of loading the second bearing 30 in the second bearing accommodating position 51, the stop block 72 abuts against the second positioning mechanism 50, and the stop block 72 and the second bearing accommodating position 51 can jointly hold the second bearing 30.

[0151] 4. Press-fitting of the second bearing 30: the blocking block 72 moves to release the second bearing accommodating position 51, and the press-fitting drive mechanism 60 presses down the center shaft 11 through the second positioning mechanism 50 until the lower end of the center shaft 11 abuts against the center shaft limiter 80, thereby completing the press-fitting of the second bearing 30; during this period, the elastic support assembly 43 moves, positions and guides the workpiece 10 to be press-fitted; after the press-fitting of the second bearing 30 is completed, the elastic support assembly 43 drives the workpiece 10 to be press-fitted to return to its initial position.

[0152] The following describes specific embodiments of the present application based on the above technical solutions.

[0153] Example 1

[0154] 1-13, embodiment 1 provides a bearing press-fitting device for a washing machine motor, which is used to press-fit a first bearing 20 and a second bearing 30 on a workpiece 10 to be press-fitted, wherein the workpiece 10 to be press-fitted includes a central shaft 11 and a rotor member 12 fixedly sleeved on the central shaft 11. The bearing press-fitting device for a washing machine motor provided in the embodiment of the present application includes: a first positioning mechanism 40, which is connected to a first bearing accommodating position 41 adapted to the lower end of the central shaft 11; the first positioning mechanism 40 includes a guide member 42 and an elastic support component 43, the elastic support component 43 is located in the cavity of the guide member 42 and is slidably connected to the guide member 42 along the bearing press-fitting direction; the elastic support component 43 is used to elastically support the rotor member 12; a central shaft avoidance portion 431 is provided on the elastic support component 43, and an end of the central shaft 11 facing the first bearing accommodating position 41 can pass through the central shaft avoidance portion 431; a second positioning mechanism 50 is provided with a second bearing accommodating position adapted to the upper end of the central shaft 11 Position 51; the press-fitting drive mechanism 60 is transmission-connected to the second positioning mechanism 50; the resisting assembly 70 is adapted to the second bearing accommodating position 51; the central shaft limiter 80 is adapted to the lower end of the central shaft 11; the press-fitting drive mechanism 60 is used to cooperatively drive the second positioning mechanism 50 and the resisting assembly 70 along the bearing press-fitting direction, so that the second positioning mechanism 50 presses the workpiece to be pressed 10 located in the initial position into the first bearing 20 through the resisting assembly 70, until the lower end of the central shaft 11 abuts against the central shaft limiter 80; the elastic support assembly 43 is also used to drive the workpiece to be pressed 10 to return to the initial position after the first bearing 20 is press-fitted; the press-fitting drive mechanism 60 is also used to drive the second positioning mechanism 50 to move along the bearing press-fitting direction, so that the second positioning mechanism 50 directly presses the second bearing 30 into the workpiece to be pressed 10, until the lower end of the central shaft 11 abuts against the central shaft limiter 80; the elastic support assembly 43 is also used to buffer the punching force applied by the first bearing 20 to the first bearing accommodating position 41.

[0155] The first bearing accommodating position 41 is arranged in the first positioning mechanism 40; the first bearing accommodating position 41 and the second bearing accommodating position 51 are respectively arranged on both sides of the central axis avoidance portion 431; the first bearing accommodating position 41 is arranged below the central axis avoidance portion 431, and the second bearing accommodating position 51 is arranged above the central axis avoidance portion 431.

[0156] The upper end and the lower end of the central shaft 11 protrude from the rotor part 12 respectively; the elastic support component 43 can support the rotor part 12, and the lower end of the central shaft 11 passes through the central shaft avoidance portion 431 toward the first bearing accommodating position 41 and extends into the cavity of the guide part 42.

[0157] The elastic support assembly 43 includes a rotor carrier 432 and an elastic support 433; the rotor carrier 432 is used to support the rotor part 12, and the central axis avoidance portion 431 is provided on the rotor carrier 432; one end of the elastic support 433 abuts against the rotor carrier 432, and the other end of the elastic support 433 abuts against the support mechanism 90; the elastic support 433 is used to reset the carrying position of the rotor carrier 432 to the initial carrying position after press-fitting; a guide groove 421 extending along the bearing press-fitting direction is provided on the inner side wall of the guide member 42, and a guide protrusion 4321 adapted to the guide groove 421 is provided on the rotor carrier 432; a notch 422 is provided on the lower end side wall of the guide member 42, and the bottom of the guide member 42 is recessed to form a recessed groove 423 that is connected to the notch 422 and adapted to the shape of part of the first bearing 20, and the notch 422 and the recessed groove 423 together form the first bearing accommodating position 41.

[0158] The elastic force direction of the elastic support member 433 is parallel to the bearing press-fitting direction.

[0159] The elastic support member 43 is arranged on a side of the rotor carrier 432 close to the first bearing accommodating position 41, and the end of the elastic support member 43 away from the second bearing accommodating position 51 abuts against the support mechanism 90, and the end of the elastic support member 43 close to the second bearing accommodating position 51 abuts against the rotor carrier 432.

[0160] The guide protrusion 4321 can slide in the guide groove 421 along the bearing press-fitting direction.

[0161] The first bearing 20 can be loaded into the first bearing accommodating position 41 through the notch 422 .

[0162] The recessed groove 423 is used to accommodate the first bearing 20 , and the sidewall of the recessed groove 423 is used to position the first bearing 20 .

[0163] The resisting end of the resisting assembly 70 can move relative to the second positioning mechanism 50 to a first position between the first positioning mechanism 40 and the second positioning mechanism 50 , and can also move relative to the second positioning mechanism 50 away from the first position to a second position.

[0164] When the first bearing 20 is pressed, the resisting assembly 70 blocks the second bearing accommodating position 51 and cooperates with the second positioning mechanism 50 to move under the drive of the press-fitting drive mechanism 60, so that the resisting assembly 70 pushes the center shaft 11 into the first bearing accommodating position 41 until it abuts against the center shaft limiter 80; when the second bearing 30 is pressed, the resisting assembly 70 releases the second bearing accommodating position 51, and the second positioning mechanism 50 moves toward the center shaft 11 under the drive of the press-fitting drive mechanism 60, so that the center shaft 11 extends into the second bearing accommodating position 51 until it abuts against the center shaft limiter 80.

[0165] The center shaft limiter 80 is arranged on a side of the first bearing accommodating position 41 away from the center shaft avoidance portion 431; a limit blind hole 81 extending along the bearing press-fitting direction is opened at the upper end of the center shaft limiter 80, and the center shaft 11 can be inserted into the limit blind hole 81. The ratio of the diameter of the lower end of the center shaft 11 to the diameter of the limit blind hole 81 is a preset value, which is 0.95-0.98; the projection of the center position of the center shaft limiter 80 along the bearing press-fitting direction coincides with the projection of the center position of the rotor carrier 432 and the center position of the center shaft 11 along the bearing press-fitting direction.

[0166] The central axis limiting member 80 is disposed below the first bearing accommodating position 41 , and the central axis limiting member 80 is fixedly connected to the supporting mechanism 90 .

[0167] The projection of the center position of the limiting blind hole 81 along the bearing press-fitting direction, the projection of the center position of the first bearing accommodating position 41 along the bearing press-fitting direction, the projection of the center position of the center axis avoidance portion 431 along the bearing press-fitting direction and the projection of the center position of the second bearing accommodating position 51 along the bearing press-fitting direction coincide with each other.

[0168] The second positioning mechanism 50 is provided with a center shaft guide portion 52, which is connected to the second bearing accommodating position 51 and is located on the side of the second bearing accommodating position 51 away from the first positioning mechanism 40; the length direction of the center shaft guide portion 52 is consistent with the bearing press-fitting direction; the center shaft 11 can extend into the center shaft guide portion 52, and the center shaft guide portion 52 is used to guide the center shaft 11 for press-fitting.

[0169] The second bearing accommodating position 51 is provided at the end side of the second positioning mechanism 50 facing the first positioning mechanism 40 ; the second bearing accommodating position 51 is a bearing accommodating position that is open toward the first positioning mechanism 40 .

[0170] When the first bearing 20 is pressed, the resisting assembly 70 is used to block the second bearing accommodating position 51, so that when the second positioning mechanism 50 moves along the bearing pressing direction, the upper end of the center shaft 11 is blocked from extending into the second bearing accommodating position 51; the resisting assembly 70 includes a first resisting body 71 that is transmission-connected to the pressing drive mechanism 60 and a resisting block 72 arranged on the first resisting body 71; the first resisting body 71 can be driven by the pressing drive mechanism 60 to move along the bearing pressing direction, so that the lower end of the resisting block 72 presses against the upper end of the center shaft 11; the resisting block 72 can block or release the second bearing accommodating position 51, so as to be able to drag or release the second bearing 30.

[0171] The resisting assembly 70 also includes a second resisting body 73, the press-fitting drive mechanism 60 is transmission-connected to the second resisting body 73, and the second resisting body 73 is transmission-connected to the first resisting body 71; the second resisting body 73 can drive the first resisting body 71 to move along the bearing press-fitting direction relative to the second positioning mechanism 50, so that the resisting end is close to the second bearing accommodating position 51 or away from the second bearing accommodating position 51 along the bearing press-fitting direction.

[0172] The second resisting body 73 can drive the resisting end to move along the bearing press-fitting direction, and the first resisting body 71 can drive the resisting end to move between the first position and the second position.

[0173] The second positioning mechanism 50 includes a fixed positioning assembly 53 and a movable positioning assembly 54 . The fixed positioning assembly 53 is in transmission connection with the press-fitting drive mechanism 60 . The movable positioning assembly 54 can extend into the second bearing accommodating position 51 to clamp the second bearing 30 .

[0174] The movable positioning assembly 54 includes a retaining member 541, an elastic member 542 and a clamping member 543; the retaining member 541 is fixedly connected to the fixed positioning assembly 53; a receiving cavity 5411 is provided on the retaining member 541, and the receiving cavity 5411 is used to receive the elastic member 542 and the clamping member 543; the elastic member 542 is limitedly connected to the retaining member 541; the two ends of the elastic member 542 are respectively in contact with the clamping member 543 and the retaining member 541; under the elastic force of the elastic member 542, the clamping member 543 can extend into the second bearing receiving position 51 to clamp the second bearing 30; the clamping member 543 includes a ball, and the ball rolls and abuts against the second bearing 30.

[0175] One end of the elastic member 542 abuts against the clamping member 543 , and the other end of the elastic member 542 abuts against the bottom wall of the accommodating cavity 5411 ; the clamping member 543 can slide in the accommodating cavity 5411 .

[0176] The press-fitting drive mechanism 60 includes a drive component 61 and a drive adapter 62. The drive component 61 is transmission-connected to the drive adapter 62, and the drive adapter 62 is fixedly connected to the second positioning mechanism 50. The drive adapter 62 is slidingly connected to the support mechanism 90 along the bearing press-fitting direction, and the support mechanism 90 can guide the movement of the drive adapter 62.

[0177] The support mechanism 90 includes a support assembly 91 and a guide column 92 , and the support assembly 91 and the guide column 92 are fixedly connected; the support assembly 91 is used to fix the support guide member 42 , the central axis limit member 80 and the press-fit drive mechanism 60 .

[0178] The length direction of the guide column 92 is consistent with the bearing press-fitting direction, and the driving adapter 62 is slidably connected to the guide column 92 along the bearing press-fitting direction.

[0179] The first blanking mechanism 100 is fixedly connected to the supporting mechanism 90; the first blanking mechanism 100 is used to string together multiple first bearings 20; a first blanking position 101 is provided on the first blanking mechanism 100, and the first bearing 20 can be blanked to the first blanking position 101; the first cutting mechanism 110 can perform a cutting movement relative to the first blanking position 101 to push the first bearing 20 out of the first blanking position 101; the first pushing mechanism 120 is used to push the first bearing 20 to the first bearing accommodating position 41.

[0180] The first blanking mechanism 100 includes at least one first stringing shaft 102, which is used to string together multiple first bearings 20; the first blanking position 101 is arranged below the first stringing shaft 102; the first bearings 20 can be dropped to the first blanking position 101 under the action of gravity.

[0181] The first pushing mechanism 120 may include a first pushing assembly and a second pushing assembly. The first pushing assembly is used to push the first bearing 20 in one direction, and the second pushing assembly is used to push the first bearing 20 in another direction.

[0182] The first bearing 20 is pushed by the first cutting mechanism 110 , the first pushing assembly and the second pushing assembly in sequence to the first bearing accommodating position 41 .

[0183] The first cutting mechanism 110 has a first bearing cutting end 111, which can perform cutting movement on the first blanking position 101; a first guide slope 1111 is provided on the first bearing cutting end 111, and the first bearing 20 can fall onto the first guide slope 1111 and can slide along the first guide slope 1111 to the first blanking position 101.

[0184] The first pushing mechanism 120 includes a first bearing pushing member 121, and a first bearing abutment portion 1211 is provided at one end of the first bearing pushing member 121 facing the first bearing accommodating position 41; during the press-fitting process of the center shaft 11 and the first bearing 20, the first bearing abutment portion 1211 abuts against the first bearing 20 so as to limit the first bearing 20 to the first bearing accommodating position 41.

[0185] The second blanking mechanism 130 is fixedly connected to the support mechanism 90; the second blanking mechanism 130 is used to string together multiple second bearings 30; a second blanking position 131 is provided on the second blanking mechanism 130, and the second bearing 30 can be blanked to the second blanking position 131; the second cutting mechanism 140 can perform a cutting movement relative to the second blanking mechanism 130 to push the second bearing 30 out from the second blanking position 131; the second pushing mechanism 150 is used to push the second bearing 30 to the second bearing accommodating position 51.

[0186] The second blanking mechanism 130 includes at least one second stringing shaft 132, which is used to string together multiple second bearings 30; the second blanking position 131 is arranged below the second stringing shaft 132; the second bearings 30 can be dropped to the second blanking position 131 under the action of gravity.

[0187] The second pushing mechanism 150 may include a third pushing assembly and a fourth pushing assembly. The third pushing assembly is used to push the second bearing 30 in one direction, and the fourth pushing assembly is used to push the second bearing 30 in another direction.

[0188] The second bearing 30 is pushed by the second cutting mechanism 140 , the third pushing assembly and the fourth pushing assembly in sequence to the second bearing accommodating position 51 .

[0189] The second cutting mechanism 140 has a second bearing cutting end 141, which can perform cutting movement on the second blanking position 131; a second guide slope 1411 is provided on the second bearing cutting end 141, and the second bearing 30 can fall onto the second guide slope 1411 and can slide along the second guide slope 1411 to the second blanking position 131.

[0190] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A bearing press-fitting device for a washing machine motor, used for press-fitting a first bearing (20) and a second bearing (30) on a workpiece (10) to be press-fitted, wherein the workpiece (10) to be press-fitted comprises a central shaft (11) and a rotor member (12) fixedly sleeved on the central shaft (11), characterized in that: include: A first positioning mechanism (40) is connected to a first bearing accommodating position (41) adapted to the lower end of the central shaft (11); the first positioning mechanism (40) comprises a guide member (42) and an elastic support component (43); the elastic support component (43) is located in a cavity of the guide member (42) and is slidably connected to the guide member (42) along a bearing press-fitting direction; the elastic support component (43) is used to elastically support the rotor member (12); a central shaft avoidance portion (431) is provided on the elastic support component (43), and one end of the central shaft (11) facing the first bearing accommodating position (41) can pass through the central shaft avoidance portion (431); A second positioning mechanism (50) is provided with a second bearing accommodation position (51) adapted to the upper end of the central shaft (11); A press-fitting drive mechanism (60) is drivingly connected to the second positioning mechanism (50); A resisting assembly (70) adapted to fit the second bearing accommodation position (51); A central axis stopper (80) adapted to fit the lower end of the central axis (11); The press-fitting drive mechanism (60) is used to cooperatively drive the second positioning mechanism (50) and the resisting assembly (70) along the press-fitting direction of the bearing, so that the second positioning mechanism (50) presses the workpiece (10) to be press-fitted located at the initial position into the first bearing (20) through the resisting assembly (70) until the lower end of the central axis (11) abuts against the central axis stopper (80); the elastic support assembly (43) is also used to drive the workpiece (10) to be press-fitted to return to the initial position after the first bearing (20) is press-fitted; The press-fitting drive mechanism (60) is also used to drive the second positioning mechanism (50) to move along the bearing press-fitting direction, so that the second positioning mechanism (50) directly presses the second bearing (30) into the workpiece (10) to be press-fitted until the lower end of the central shaft (11) abuts against the central shaft stopper (80). The elastic support assembly (43) is also used to buffer the punching force applied by the first bearing (20) to the first bearing accommodation position (41).

2. The bearing press-fitting device for a washing machine motor according to claim 1, characterized in that: When the first bearing (20) is press-fitted, the blocking component (70) blocks the second bearing accommodating position (51) and moves in coordination with the second positioning mechanism (50) under the drive of the press-fitting driving mechanism (60), so that the blocking component (70) pushes the central shaft (11) into the first bearing accommodating position (41) until it abuts against the central shaft stopper (80); When the second bearing (30) is press-fitted, the resisting assembly (70) releases the second bearing accommodating position (51), and the second positioning mechanism (50) moves toward the central axis (11) driven by the press-fitting driving mechanism (60), so that the central axis (11) extends into the second bearing accommodating position (51) until it abuts against the central axis limiting member (80).

3. The bearing press-fitting device for a washing machine motor according to claim 1, characterized in that: The bearing press-fitting device for a washing machine motor further comprises a supporting mechanism (90) for fixedly supporting the guide member (42) and the press-fitting driving mechanism (60).

4. The bearing press-fitting device for a washing machine motor according to claim 3, characterized in that: The elastic support assembly (43) comprises a rotor bearing member (432) and an elastic support member (433); The rotor bearing member (432) is used to bear the rotor member (12), and the central axis avoidance portion (431) is arranged on the rotor bearing member (432); One end of the elastic support member (433) abuts against the rotor bearing member (432), and the other end of the elastic support member (433) abuts against the support mechanism (90); the elastic support member (433) is used to reset the bearing position of the rotor bearing member (432) to an initial bearing position after press-fitting; A guide groove (421) extending along the bearing press-fitting direction is provided on the inner side wall of the guide member (42), and a guide protrusion (4321) adapted to the guide groove (421) is provided on the rotor carrier (432); A notch (422) is formed on the side wall of the lower end of the guide member (42), and a recessed portion at the bottom of the guide member (42) is formed to communicate with the notch (422) and to match the shape of the first bearing (20). The recess (423) is provided in the bearing housing, and the notch (422) and the recess (423) together form the first bearing accommodation position (41).

5. The bearing press-fitting device for a washing machine motor according to claim 1, characterized in that: The upper end of the central axis limiting member (80) is provided with a limiting blind hole (81) extending along the bearing press-fitting direction, the central axis (11) can be inserted into the limiting blind hole (81), and the ratio of the diameter of the lower end of the central axis (11) to the diameter of the limiting blind hole (81) is a preset value, and the preset value is 0.95-0.98; The projection of the center position of the central axis stopper (80) along the bearing press-fitting direction respectively coincides with the projection of the center position of the rotor carrier (432) and the center position of the central axis (11) along the bearing press-fitting direction.

6. The bearing press-fitting device for a washing machine motor according to claim 1, characterized in that: When the first bearing (20) is press-fitted, the blocking component (70) is used to block the second bearing accommodating position (51) so as to prevent the upper end of the central axis (11) from extending into the second bearing accommodating position (51) during the movement of the second positioning mechanism (50) along the bearing press-fitting direction; The resisting assembly (70) comprises a first resisting body (71) drivingly connected to the press-fitting driving mechanism (60) and a resisting block (72) arranged on the first resisting body (71); The first resisting body (71) can move along the bearing press-fitting direction under the drive of the press-fitting driving mechanism (60), so that the lower end of the resisting block (72) presses against the upper end of the central shaft (11); The blocking block (72) can cover or release the second bearing accommodating position (51) so as to hold or release the second bearing (30).

7. The bearing press-fitting device for a washing machine motor according to claim 1, characterized in that: The second positioning mechanism (50) is provided with a central axis guide portion (52), the central axis guide portion (52) is connected to the second bearing accommodating position (51) and is located on a side of the second bearing accommodating position (51) away from the first positioning mechanism (40); The length direction of the central shaft guide portion (52) is consistent with the bearing press-fitting direction; the central shaft (11) can extend into the central shaft guide portion (52), and the central shaft guide portion (52) is used to The central axis (11) is press-fitted and guided.

8. The bearing press-fitting device for a washing machine motor according to claim 1, characterized in that: The second positioning mechanism (50) comprises a fixed positioning component (53) and a movable positioning component (54), and the fixed positioning component (53) is drivingly connected to the press-fitting drive mechanism (60); The movable positioning assembly (54) is capable of extending into the second bearing accommodation position (51) to clamp the second bearing (30); The movable positioning assembly (54) comprises a retaining member (541), an elastic member (542) and a clamping member (543); The retaining member (541) is fixedly connected to the fixed positioning assembly (53); a receiving cavity (5411) is provided on the retaining member (541), and the receiving cavity (5411) is used to receive the elastic member (542) and the clamping member (543); The elastic member (542) is limitedly connected to the retaining member (541); two ends of the elastic member (542) are respectively in contact with the clamping member (543) and the retaining member (541); under the elastic force of the elastic member (542), the clamping member (543) can extend into the second bearing accommodating position (51) to clamp the second bearing (30); The clamping member (543) comprises a ball bearing, and the ball bearing is in rolling contact with the second bearing (30).

9. The bearing press-fitting device for a washing machine motor according to any one of claims 1 to 8, characterized in that: The bearing press-fitting device for the washing machine motor also includes: A first blanking mechanism (100) is fixedly connected to the support mechanism (90); the first blanking mechanism (100) is used to string together a plurality of the first bearings (20); a first blanking position (101) is provided on the first blanking mechanism (100), and the first bearing (20) can be blanked to the first blanking position (101); The first cutting mechanism (110) is capable of performing a cutting movement relative to the first material drop position (101) so as to push out the first bearing (20) from the first material drop position (101); the first cutting mechanism (110) has a first bearing cutting end (111), and the first bearing cutting end (111) is capable of performing a cutting movement on the first material drop position (101); A first guiding inclined surface (1111) is provided on the cutting end (111) of the first bearing. The bearing (20) can fall onto the first guiding inclined surface (1111) and can slide along the first guiding inclined surface (1111) to the first material drop position (101); A first pushing mechanism (120) is used to push the first bearing (20) to the first bearing accommodating position (41); the first pushing mechanism (120) comprises a first bearing pushing member (121), and a first bearing abutting portion (1211) is provided at one end of the first bearing pushing member (121) facing the first bearing accommodating position (41); During the press-fitting process of the central shaft (11) and the first bearing (20), the first bearing abutment portion (1211) abuts against the first bearing (20) so as to limit the first bearing (20) to the first bearing accommodation position (41); The bearing press-fitting device for the washing machine motor also includes: A second blanking mechanism (130) is fixedly connected to the support mechanism (90); the second blanking mechanism (130) is used to string together a plurality of the second bearings (30); a second blanking position (131) is provided on the second blanking mechanism (130), and the second bearings (30) can be blanked to the second blanking position (131); The second cutting mechanism (140) is capable of performing a cutting movement relative to the second blanking mechanism (130) to push out the second bearing (30) from the second blanking position (131); the second cutting mechanism (140) has a second bearing cutting end (141), and the second bearing cutting end (141) is capable of performing a cutting movement on the second blanking position (131); A second guiding inclined surface (1411) is provided on the cutting end (141) of the second bearing, and the second bearing (30) can fall onto the second guiding inclined surface (1411) and can slide along the second guiding inclined surface (1411) to the second dropping position (131); The second pushing mechanism (150) is used to push the second bearing (30) to the second bearing accommodating position (51).

10. The bearing press-fitting device for a washing machine motor according to any one of claims 1 to 8, characterized in that: The press-fitting drive mechanism (60) comprises a drive assembly (61) and a drive adapter (62), wherein the drive assembly (61) is transmission-connected to the drive adapter (62), and the drive adapter (62) is fixedly connected to the second positioning mechanism (50); The drive adapter (62) is slidably connected to the support mechanism (90) along the bearing press-fitting direction, and the support mechanism (90) is capable of guiding the movement of the drive adapter (62).

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