Automatic press-fitting device for double-end bearing of motor rotor

Abstract

The present application relates to the technical field of assembling equipment, and particularly relates to a motor rotor double-end bearing automatic press-fitting device, which comprises a retainer ring clamping mechanism and a bearing press-fitting mechanism arranged in sequence between a feeding assembly and a discharging assembly; the retainer ring clamping mechanism comprises two groups of clamping assemblies arranged symmetrically, the bearing press-fitting mechanism comprises two groups of press-fitting assemblies arranged coaxially and oppositely, and a press-fitting base for transversely bearing the bearing is arranged between the two groups of press-fitting assemblies; the retainer ring clamping mechanism and the bearing press-fitting mechanism arranged in sequence between the feeding assembly and the discharging assembly can automatically complete the assembly of the retainer ring when the motor is bearing-mounted, so that the assembly efficiency of the bearing can be improved; and the two groups of press-fitting assemblies can simultaneously assemble the bearing to the shafts at the two ends of the rotor to realize one-time assembly, so that the assembly efficiency of the bearing is improved, and the influence of the assembly precision caused by the overturning of the rotor can be avoided.

Description

Technical Field

[0001] This invention relates to the technical field of assembly equipment, and more particularly to an automatic press-fitting device for double-end bearings of a motor rotor. Background Technology

[0002] Motors, as core components of modern electrical equipment, are widely used in various mechanical devices, such as fans, pumps, and conveyor belts. The performance of a motor directly affects the efficiency and reliability of the equipment. Bearings, as one of the main components of a motor, are crucial to its operational performance.

[0003] Currently, the installation method for motor bearings in existing technologies is usually unidirectional press-fitting. That is, after the bearing is installed at one end of the motor rotor, the rotor needs to be flipped before the other end can be installed. This installation method is not only time-consuming, but also requires additional manpower and equipment, resulting in low production efficiency. Furthermore, during the rotor flipping process, the rotor position is prone to displacement, which affects the installation accuracy, may cause vibration and noise, and may even lead to early failure. At the same time, before installing the bearing, the retaining ring needs to be installed manually, which not only affects the assembly efficiency, but also easily reduces the assembly consistency and accuracy.

[0004] Therefore, there is an urgent need to develop a new type of motor rotor bearing installation equipment to improve overall assembly efficiency and precision. Summary of the Invention

[0005] To address the problems mentioned above, this invention provides an automatic press-fitting device for double-end bearings of a motor rotor, which can simultaneously install bearings at both ends of the motor. This not only simplifies the motor bearing installation process and improves overall assembly efficiency, but also enhances the bearing assembly precision, thereby increasing the motor assembly yield.

[0006] The solution adopted by the present invention to solve its technical problem is: an automatic pressing device for double-end bearings of motor rotor, including a frame, a feeding assembly and a discharging assembly respectively disposed at both ends of the frame, and a retaining ring clamping mechanism and a bearing pressing mechanism sequentially disposed between the feeding assembly and the discharging assembly along the conveying direction.

[0007] The retaining ring clamping mechanism includes two sets of clamping components arranged symmetrically and clamping bases respectively located at the front end of the two sets of clamping components to support the rotor. The clamping components are inserted into the clamping bases for clamping.

[0008] The bearing press-fitting mechanism includes two sets of press-fitting components arranged coaxially opposite each other. Between the two sets of press-fitting components is a press-fitting base that laterally supports and positions the rotor and makes the two sets of press-fitting components coaxially opposite to the two ends of the rotor. The frame is provided with a synchronous transfer mechanism for synchronously transferring the rotor between the clamping base and the press-fitting base and between the press-fitting base and the unloading component.

[0009] Furthermore, the clamping assembly includes a clamping cylinder and a clamping connector connected to the front end of the clamping cylinder. The clamping base has a clamping channel on its side and a clamping interface vertically connected to the clamping channel. The clamping connector is inserted into the clamping channel. A guide strip for conveying the clamping ring is connected to the clamping interface. A first feeding tray is provided on the frame, and the top end of the guide strip is connected to the first feeding tray.

[0010] Furthermore, the front end of the connector is provided with a bayonet that is adapted to the rotor end shaft, and the side of the connector corresponding to the bayonet is provided with a slot that is adapted to the retaining ring and closely attached to the interface, and the retaining ring conveyed by the guide bar is fitted into the slot.

[0011] Furthermore, the end of the feeding assembly is provided with a transfer rack connected to the clamping base. A clamping block is provided at the position where the clamping base connects to the transfer rack. The clamping block and the front end of the clamping base are combined to form a fixing groove for fixing the rotor. A lifting cylinder for driving the clamping block to rise and fall is connected to the bottom of the clamping block. When the clamping block falls, the transfer rack is connected to the clamping base.

[0012] Furthermore, the pressing assembly includes a pressing cylinder arranged horizontally perpendicular to the conveying direction and a pressing bracket connected to the front end of the pressing cylinder. A pressing head is rotatably installed inside the pressing bracket, and a conversion component is provided on the side of the pressing bracket that is connected to the pressing head and drives the pressing head to rotate in the horizontal and vertical directions.

[0013] The press-fit base includes a base plate and an adjustment plate that is laterally slidably mounted on the base plate. Two rotor supports are symmetrically mounted on the adjustment plate, and the two rotor supports correspond to the two press-fit heads respectively.

[0014] Furthermore, the pressing head is provided with rotating shafts at both ends for its own rotation. One end of the rotating shaft extends through the side of the pressing bracket and is fitted with a conversion gear. The conversion assembly includes a conversion cylinder disposed on the side of the pressing bracket and a conversion rack connected to the piston rod of the conversion cylinder. The conversion rack meshes with the conversion gear for transmission.

[0015] Furthermore, the frame is provided with a second feeding plate for feeding bearings, and the bottom of the pressing assembly is provided with a material transfer channel connected to the second feeding plate. The side of the material transfer channel is provided with a mounting platform, which is located below the pressing head. The bottom of the mounting platform is provided with an upper lifting cylinder for lifting the bearing and clamping it into the pressing head. The front end of the material transfer channel is provided with a transversely arranged transfer cylinder. The piston rod of the transfer cylinder is connected to a transfer block for pushing the bearing on the material transfer channel to the mounting platform. The transfer block is located on the end surface of the material transfer channel.

[0016] Furthermore, the synchronous transfer mechanism includes a transfer frame fixedly installed on the frame and a transfer track installed on the transfer frame and arranged along the rotor conveying direction. A transfer plate is movably installed on the transfer track, and two transfer grippers are vertically movably installed on the surface of the transfer plate. The distance between the two transfer grippers is the same as the distance between the clamping base and the pressing base.

[0017] Furthermore, both the feeding assembly and the unloading assembly include a conveying bracket connected to the frame, conveying gears located at both ends of the conveying bracket, and a conveying chain installed inside the conveying bracket and fitted onto the conveying gears. Conveying bases for stabilizing the conveying rotor are installed at equal intervals on the conveying chain, and horizontally arranged support bars for supporting the conveying chain are provided on the inner wall of the conveying bracket.

[0018] Furthermore, the conveying base includes a conveying plate fixedly installed on the conveyor chain and two conveying brackets symmetrically arranged at both ends of the surface of the conveying plate. The conveying plate is arranged horizontally to allow the rotor to be conveyed horizontally.

[0019] In summary, the beneficial effects of the present invention are as follows:

[0020] 1. This invention, by sequentially setting a retaining ring clamping mechanism and a bearing pressing mechanism between the feeding assembly and the unloading assembly, allows the motor rotor to be automatically conveyed to the retaining ring clamping mechanism to complete the assembly of the retaining ring during bearing installation. Subsequently, the bearing is automatically installed in the bearing pressing mechanism, avoiding manual installation of the retaining ring, improving the assembly efficiency of the bearing, and enhancing the consistency of the assembly.

[0021] 2. This invention sets up two sets of coaxially opposite pressing components, and sets a pressing base between the two sets of pressing components to fix the rotor and make the two ends of the rotor coaxially opposite to the two sets of pressing components respectively. This allows the rotor after the retaining ring assembly is completed to enter the pressing base, and the two sets of pressing components can simultaneously assemble the bearings onto the shafts at both ends of the rotor to achieve one assembly. This not only improves the assembly efficiency of the bearings, but also avoids the rotor flipping, which would affect the assembly accuracy.

[0022] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the bearing press-fitting device in this embodiment;

[0024] Figure 2 This is a schematic diagram of the retaining ring mounting mechanism in this embodiment;

[0025] Figure 3 This is a schematic diagram of the card mounting assembly and card mounting base in this embodiment;

[0026] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0027] Figure 5 This is a schematic diagram of the bearing press-fitting mechanism in this embodiment;

[0028] Figure 6 This is a schematic diagram of the press-fit assembly in this embodiment;

[0029] Figure 7 This is a schematic diagram of the synchronous transfer mechanism in this embodiment;

[0030] Figure 8 This is a schematic diagram of the feeding and unloading components in this embodiment.

[0031] In the diagram: 1. Frame; 11. Conveyor support; 12. Conveyor gear; 13. Conveyor chain; 14. Conveyor base; 141. Conveyor plate; 142. Conveyor holder; 15. Support bar; 2. Feeding assembly; 3. Unloading assembly; 4. Retaining ring clamping mechanism; 41. Clamping assembly; 411. Clamping cylinder; 412. Clamping connector; 413. Clamping slot; 414. Clamping groove; 42. Clamping base; 421. Clamping channel; 422. Clamping interface; 423. Clamping block; 424. Fixing groove; 425. Lifting cylinder; 43. Guide bar; 44. First feeding plate; 5. Bearing pressing mechanism 51. Pressing assembly; 511. Pressing cylinder; 512. Pressing bracket; 513. Pressing head; 514. Conversion gear; 52. Pressing base; 521. Base plate; 522. Adjusting plate; 523. Rotor bracket; 53. Conversion assembly; 531. Conversion cylinder; 532. Conversion rack; 54. Second feeding tray; 541. Material transfer channel; 542. Mounting platform; 543. Top cylinder; 544. Transfer cylinder; 545. Transfer block; 6. Synchronous transfer mechanism; 61. Transfer frame; 62. Transfer track; 63. Transfer plate; 64. Transfer gripper; 7. Material transfer frame. Detailed Implementation

[0032] To make the content of this invention easier to understand, the invention will be further described below with reference to specific embodiments and accompanying drawings.

[0033] It should be noted that the terms "center," "upper," "lower," "front," "rear," "left," "right," "inner," and "outer," etc., used herein to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Unless otherwise stated, "a plurality of" means two or more.

[0034] Unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art will understand the specific meaning of these terms in this invention based on the specific circumstances.

[0035] like Figure 1 , Figure 2 and Figure 5 As shown, an automatic bearing press-fitting device for a motor rotor can simultaneously install bearings at both ends of the motor rotor, simplifying the bearing installation process and improving assembly efficiency and accuracy. Furthermore, it can automatically install bearing retaining rings before bearing assembly, eliminating the need for manual clamping, effectively reducing labor costs and improving overall assembly efficiency. The automatic bearing press-fitting device of this embodiment includes a frame 1, a feeding assembly 2 and a discharging assembly 3 respectively located at both ends of the frame 1, and a retaining ring clamping mechanism 4 and a bearing press-fitting mechanism 5 installed on the frame 1 between the feeding assembly 2 and the discharging assembly 3. In this embodiment, the retaining ring clamping mechanism 4 and the bearing press-fitting mechanism 5 are arranged sequentially along the conveying direction of the motor rotor. After the motor rotor is fed by the feeding assembly 2, the bearing retaining rings are first installed by the retaining ring clamping mechanism 4, and then it is conveyed to the bearing press-fitting mechanism 5 for bearing installation, thereby realizing the automatic assembly of the motor bearings in this embodiment, improving assembly efficiency and reducing assembly costs.

[0036] Specifically, such as Figures 1 to 3As shown, in this embodiment, the feeding component 2 and the unloading component 3 are correspondingly arranged and form a straight conveying channel on the frame 1. The retaining ring clamping mechanism 4 in this embodiment includes two sets of clamping components 41 symmetrically arranged on both sides of the conveying channel and clamping bases 42 respectively arranged at the front end of each clamping component 41. When the motor rotor is conveyed to the retaining ring clamping mechanism 4 through the feeding component 2, the center of the rotor is located between the two sets of clamping components 41, and the two end shafts of the rotor are respectively fixed in the two clamping bases 42. The two sets of clamping components 41 respectively drive the bearing retaining ring to be inserted into the corresponding clamping base 42, thereby installing the bearing retaining ring on the end shaft of the rotor, realizing the simultaneous automatic installation of the bearing retaining ring. This not only improves the assembly efficiency, but also ensures the balance of both ends of the rotor by clamping the end shafts on both sides at the same time, thereby improving the clamping accuracy of the bearing retaining ring. Furthermore, the frame 1 of this embodiment is provided with a transverse slide rail, and two movable plates are symmetrically arranged on the slide rail. The two sets of clamping components 41 of this embodiment are respectively installed on the two movable plates, so that the distance between the two sets of clamping components 41 can be adjusted by moving the movable plates on the slide rail, thereby facilitating the clamping installation of motor rotors of various models and specifications.

[0037] like Figure 2 value Figure 4 As shown, the clamping assembly 41 of this embodiment includes a clamping cylinder 411 arranged parallel to the conveying direction and a clamping connector 412 connected to the front end of the clamping cylinder 411. The clamping connector 412 has a sheet-like structure. The clamping cylinder 411 can push the clamping connector 412 to move in a direction parallel to the conveying channel and insert it into the clamping base 42, thereby installing the bearing retainer ring onto the end shaft of the rotor. Specifically, in this embodiment, the clamping base 42 is connected to the front end of the clamping assembly 41. A clamping channel 421 is provided on the side of the clamping base 42 at a position corresponding to the clamping connector 412. The clamping cylinder 411 can push the sheet-like clamping connector 412 to insert it into the clamping channel 421 to install the retainer ring.

[0038] Furthermore, such as Figure 4As shown, to facilitate the snap-fit ​​connector 412 in pushing the snap-fit ​​ring onto the rotor's end shaft, the snap-fit ​​base 42 in this embodiment is also provided with a snap-fit ​​interface 422 vertically connected to the side of the snap-fit ​​channel 421 for feeding the snap-fit ​​ring. A guide strip 43 for conveying the snap-fit ​​ring is connected to the snap-fit ​​interface 422 in this embodiment. The snap-fit ​​ring can move along the guide strip 43 to the snap-fit ​​interface 422 and enter the snap-fit ​​channel 421, and then be snapped onto the rotor's end shaft under the push of the snap-fit ​​connector 412. Specifically, the cross-section of the guide strip 43 in this embodiment is adapted to the inner ring structure of the snap-fit ​​ring, allowing the snap-fit ​​ring to move stably in the correct direction to the snap-fit ​​interface 422 under the action of the guide strip 43, effectively improving the snap-fit ​​accuracy and success rate of the snap-fit ​​ring. Furthermore, in this embodiment, the side of the snap-fit ​​connector 412 that is in contact with the snap-fit ​​interface 422 is provided with a snap-fit ​​groove 414 that is adapted to the snap-fit ​​ring. At the same time, the front end of the snap-fit ​​connector 412 is provided with a snap-fit ​​opening 413 that is adapted to the end shaft of the rotor. After the snap-fit ​​connector 412 completes the previous snap-fit ​​and retracts, the snap-fit ​​groove 414 can be located at the position of the snap-fit ​​interface 422. This allows the snap-fit ​​ring that moves along the guide bar 43 to the snap-fit ​​interface 422 to be fitted into the snap-fit ​​groove 414, and the opening of the snap-fit ​​ring corresponds to the snap-fit ​​opening 413. Thus, when the snap-fit ​​cylinder 411 pushes the snap-fit ​​connector 412 to move within the snap-fit ​​channel 421, it can drive the snap-fit ​​ring in the snap-fit ​​groove 414 to move. When the snap-fit ​​opening 413 is connected to the end shaft of the rotor, the snap-fit ​​ring is automatically snapped.

[0039] In addition, in order to realize the automatic feeding of the retaining rings, the frame 1 of this embodiment is provided with a first feeding plate 44. The first feeding plate 44 has an opening, and the top end of the guide bar 43 is vertically connected to the opening of the first feeding plate 44. When the first feeding plate 44 vibrates, the disordered retaining rings can be randomly shaken down to the opening, and then moved along the guide bar 43 into the mounting base 42 to achieve locking. This realizes the automatic mounting function of the retaining rings in this embodiment, which can effectively improve the assembly efficiency of the bearing.

[0040] like Figure 2 As shown, in order to enable the motor rotor to automatically enter the mounting base 42 for fixing after being fed by the feeding component 2, and to facilitate the mounting of the retaining ring, this embodiment also provides a transfer frame 7 connected to the mounting base 42 at the end of the feeding component 2. The motor rotor can be conveyed to the transfer frame 7 under the drive of the feeding component 2, and then automatically roll down along the transfer frame 7 under the action of gravity into the mounting base 42 for fixing.

[0041] Specifically, the feeder 7 in this embodiment includes two symmetrically arranged inclined plates. One end of each inclined plate is connected to the end of the feeding assembly 2, and the other end is connected to a fixed position on the mounting base 42. The two inclined plates together form a feeding channel that gradually slopes downwards from one end of the feeding assembly 2 to the other end of the mounting base 42. The two end shafts of the motor rotor entering the feeder 7 can be located on the two inclined plates respectively, and the center of the rotor is located in the feeding channel formed by the two inclined plates. This allows the rotor to automatically roll down the inclined plate on the top surface under the action of gravity into the mounting base 42, thus completing the automatic feeding of the rotor. The width of the feeding channel formed by the two inclined plates in this embodiment is adapted to the structure of the rotor, which can limit the automatic rolling feeding of the rotor, thereby improving the feeding accuracy of the rotor and thus improving the success rate of mounting.

[0042] Furthermore, to prevent adjacent rotors from jamming due to excessively rapid feeding, this embodiment also includes a diversion mechanism on the feed rack 7. This allows rotors entering the feed rack 7 to sequentially enter the clamping base 42 for ring installation under the action of the diversion mechanism. Specifically, the diversion mechanism in this embodiment includes a diversion bracket located in the middle of the feeding channel and a diversion cylinder fixedly mounted on the diversion bracket. The diversion cylinder is vertically arranged, and its piston rod is vertically connected to a diversion gripper. The diversion cylinder can drive the diversion gripper to insert into the feeding channel to block the rotor's rolling and achieve rotor diversion. In addition, this embodiment has two diversion cylinders arranged side by side, so that the diversion grippers on the two diversion cylinders can block the front and rear of the rotor respectively, thereby achieving individual feeding of the rotor and avoiding mutual interference between adjacent rotors.

[0043] like Figures 3 to 4 As shown, in this embodiment, a locking block 423 is also provided at the connection position between the locking base 42 and the feeder 7. The locking block 423 can be combined with the front end of the locking base 42 to form a fixing groove 424 for fixing the rotor. When the rotor rolls along the feeder 7 to the locking base 42, it can enter the fixing groove 424 formed by the combination of the locking block 423 and the locking base 42 for fixing, thereby facilitating the installation of the retaining ring by the locking assembly 41 and improving the locking accuracy and effect of the retaining ring. Furthermore, in this embodiment, the bottom of the locking block 423 is connected to a lifting cylinder 425 for driving the locking block 423 to rise and fall. When the motor rotor is feeding, the lifting cylinder 425 drives the locking block 423 to fall, so that the feeder 7 is connected to the front end of the locking base 42, thereby allowing the rotor to roll onto the locking base 42. After feeding is completed, the lifting cylinder 425 drives the locking block 423 to rise, thereby fixing the rotor in the fixing groove 424.

[0044] like Figure 1 , Figure 5 and Figure 6As shown, in this embodiment, after the retaining ring clamping mechanism 4 installs retaining rings at both ends of the motor rotor, the bearing pressing mechanism 5 assembles the bearings onto the motor rotor. To achieve simultaneous installation of bearings on both sides of the rotor, the bearing pressing mechanism 5 in this embodiment includes two sets of coaxial pressing components 51 arranged opposite each other on both sides of the conveying channel, and a pressing base 52 located between the two sets of pressing components 51. The pressing base 52 can provide lateral support to the motor rotor and ensure that the end shafts at both ends of the rotor are coaxially opposite to the two sets of pressing components 51, thereby allowing the two sets of pressing components 51 to simultaneously assemble the bearings onto the rotor. This achieves the function of simultaneous assembly of bearings at both ends of the motor rotor in this embodiment, effectively improving assembly efficiency. Furthermore, simultaneous installation of bearings at both ends ensures force balance on the end shafts on both sides of the rotor, thus preventing end shaft bending and effectively improving the assembly accuracy of the rotor bearings.

[0045] Specifically, such as Figures 5 to 6 As shown, the pressing assembly 51 of this embodiment includes a pressing cylinder 511 arranged horizontally and perpendicularly to the channel and a pressing bracket 512 connected to the front end of the pressing cylinder 511. A pressing head 513 is installed inside the pressing bracket 512. The pressing cylinder 511 can drive the pressing bracket 512 to move back and forth closer to or away from the pressing base 52, so that the pressing head 513 presses the bearing onto the end shaft of the rotor to complete the pressing. In order to improve the accuracy of rotor bearing pressing, the pressing base 52 of this embodiment includes a base plate 521 and an adjusting plate 522 that is laterally slidably installed on the base plate 521. Two rotor brackets 523 are symmetrically installed on the adjusting plate 522. The two rotor brackets 523 correspond to the two pressing heads 513 respectively, so that when the rotor is transferred to the pressing base 52, the two end shafts of the rotor can be respectively fitted into the two rotor brackets 523, so that the two end shafts of the rotor can correspond to the two pressing heads 513 respectively, which facilitates simultaneous pressing. Furthermore, by setting a laterally sliding adjustment plate 522 in this embodiment, when the two pressing heads 513 are pressing the bearings simultaneously, the adjustment plate 522 can move according to the pressing force, thereby avoiding excessive force on one side and causing defective products.

[0046] Furthermore, such as Figure 5 and Figure 6 As shown, to achieve automatic bearing feeding, a second feeding tray 54 is provided on the frame 1 in this embodiment. A material transfer channel 541 connected to the second feeding tray 54 is provided at the bottom of the pressing assembly 51. The second feeding tray 54 can automatically feed the bearings into the material transfer channel 541 in a flat position by means of vibration or rotation. In this embodiment, the material transfer channel 541 is a belt conveyor, which is low-cost and facilitates stable bearing feeding. In other embodiments, the material transfer channel 541 can also be a cylinder-driven feeding or a motor-driven feeding.

[0047] Furthermore, to facilitate the loading of the bearings in the material transfer channel 541 into the pressing head 513 for pressing, the pressing head 513 in this embodiment is rotatably mounted inside the pressing bracket 512. The pressing bracket 512 has a conversion component 53 on its side that is connected to the pressing head 513 and drives the pressing head 513 to rotate in the horizontal and vertical directions. Simultaneously, a mounting platform 542 extending below the pressing head 513 is provided on one side of the material transfer channel 541, and an upper air vent is provided at the position corresponding to the pressing head 513 on the mounting platform 542. When the bearing is being loaded, the pressing head 513 can be driven by the conversion component 53 to change from a horizontal alignment with the rotor end shaft to a vertical downward alignment with the mounting platform 542. At this time, the upward lifting cylinder 543 can push the bearing on the mounting platform 542 into the pressing head 513 to complete the bearing loading. Then, the conversion cylinder 531 drives the pressing head 513 to rotate to a horizontal alignment with the rotor, and under the push of the pressing cylinder 511, it approaches the rotor to load the bearing onto the rotor end shaft, thus completing the automatic pressing of the bearing.

[0048] like Figure 6 As shown, in order to transfer the bearing in the material transfer channel 541 to the top position of the mounting platform 542 for loading, this embodiment provides a transfer cylinder 544 extending laterally to the bottom of the mounting platform 542 at the front end of the material transfer channel 541, and a transfer block 545 is connected to the piston rod of the transfer cylinder 544. The transfer block 545 is located on the end surface of the material transfer channel 541. When the transfer cylinder 544 moves, it can drive the transfer block 545 from the surface of the material transfer channel 541 to the bearing loading position of the mounting platform 542. During the movement of the transfer block 545, the bearing on the end surface of the material transfer channel 541 can be moved to the top position and thus loaded into the pressing head 513.

[0049] like Figure 6 As shown, the conversion assembly 53 of this embodiment includes a conversion cylinder 531 disposed on the side of the press-fit bracket 512 and a conversion rack 532 connected to the piston rod of the conversion cylinder 531. The press-fit head 513 of this embodiment is provided with a rotating shaft at both ends for its own rotation, and one end of the rotating shaft passes through the side of the press-fit bracket 512 and is fitted with a conversion gear 514. The conversion rack 532 meshes with the conversion gear 514 for transmission, so that when the conversion cylinder 531 pushes the conversion rack 532 to move back and forth, the conversion gear 514 can rotate under the action of gear meshing, thereby driving the press-fit head 513 to rotate and switch between horizontal and vertical directions, realizing the press-fitting and loading process of the bearing.

[0050] like Figure 1 and Figure 7As shown, in order to enable the rotor to be automatically transferred to the pressing base 52 after the clasp installation is completed, and to be automatically transferred to the unloading assembly 3 after the bearing pressing is completed, this embodiment is provided with a synchronous transfer mechanism 6 on the frame 1 for sequentially and synchronously transferring the rotor between the clasp base 42, the pressing base 52 and the unloading assembly 3. After each rotor completes the assembly of this process, it can be automatically transferred to the next station under the action of the synchronous transfer mechanism 6 to realize automated assembly.

[0051] like Figure 7 As shown, specifically, the synchronous transfer mechanism 6 of this embodiment includes a transfer frame 61 fixedly installed on the frame 1 and a transfer track 62 installed on the transfer frame 61 and arranged along the rotor conveying direction. In this embodiment, a transfer plate 63 is movably installed on the transfer track 62, and two transfer grippers 64 are vertically and movably installed on the surface of the transfer plate 63. In this embodiment, the two transfer grippers 64 correspond to the positions of the clamping base 42 and the pressing base 52, respectively. After the rotor in the clamping base 42 completes the installation of the retaining ring and the rotor in the pressing base 52 completes the pressing of the double-end bearing, the two transfer grippers 64 can move down and clamp the rotor. As the transfer plate 63 moves along the transfer track 62, the rotor in the clamping base 42 is transferred to the pressing base 52, and the rotor in the pressing base 52 is synchronously transferred to the unloading assembly 3, thus achieving the synchronous transfer effect of this embodiment. In this embodiment, the rotor is transferred by the synchronous transfer mechanism 6. Compared with the separate transfer method in the prior art, this not only simplifies the transfer steps and improves the overall movement efficiency, but also simplifies the overall structure of the equipment, thereby reducing the overall volume of the motor rotor bearing assembly equipment in this embodiment.

[0052] like Figure 1 and Figure 8 As shown, in this embodiment, the motor rotor is fed by the feeding assembly 2, and after the motor rotor completes the circlip installation and bearing press-fitting, it is unloaded by the unloading assembly 3 or transferred to the next equipment for processing. To achieve stable feeding of the motor rotor, both the feeding assembly 2 and the unloading assembly 3 in this embodiment include a conveying bracket 11 connected to the frame 1, conveying gears 12 located at both ends of the conveying bracket 11, and a conveying chain 13 installed inside the conveying bracket 11 and fitted onto the conveying gears 12. Conveying bases 14 are equidistantly mounted on the conveying chain 13. During feeding or unloading, the motor rotor can be fixedly mounted on the conveying bases 14, thereby achieving stable conveying. In this embodiment, a conveying motor is provided on one side of the conveying bracket 11, which is connected to the conveying gears 12. When conveying the motor rotor, the drive motor pneumatically drives the conveying gears 12 to rotate. At this time, the conveying chain 13 moves along the conveying bracket 11 under the drive of the conveying gears 12, thereby moving the conveying bases 14 located on the conveying chain 13, thus realizing the conveying of the motor rotor.

[0053] In addition, a horizontal support bar 15 is provided on the inner wall of the conveyor bracket 11 in this embodiment. The middle part of the conveyor chain 13 can be supported by the support bar 15 to keep it horizontal, which can prevent the conveyor chain 13 from sinking under the influence of gravity and affecting the stable conveying of the rotor.

[0054] In other embodiments, the feeding assembly 2 and the unloading assembly 3 can also be conveyed by belts or steel belts, achieving the same technical effect.

[0055] like Figure 8 As shown, in order to keep the motor rotor stable during the conveying process, the conveying base 14 of this embodiment includes a conveying plate 141 fixedly installed on the conveying chain 13 and two conveying brackets 142 symmetrically arranged at both ends of the surface of the conveying plate 141. When the motor rotor is conveyed, the end shafts at both ends of the rotor can be placed on the two conveying brackets 142 for fixation, thereby achieving stable conveying. In addition, the conveying plate 141 of this embodiment is arranged horizontally, so that the motor rotor can be conveyed in a horizontal manner relative to the conveying channel, which facilitates the direct conveying of the motor rotor to the clamping base 42 for clamping, and also facilitates the synchronous transfer mechanism 6 to directly unload the motor rotor in the pressing base 52 onto the unloading assembly 3.

[0056] In summary, the working principle of this embodiment is as follows: By sequentially setting a retaining ring clamping mechanism 4 and a bearing pressing mechanism 5 between the feeding assembly 2 and the unloading assembly 3, the motor rotor can be automatically conveyed to the retaining ring clamping mechanism 4 to complete the assembly of the retaining rings during bearing installation. Subsequently, the bearing is automatically installed in the bearing pressing mechanism 5, avoiding manual installation of the retaining rings, improving the assembly efficiency and consistency of the bearings. Furthermore, by setting two sets of coaxially opposite pressing components 51 and setting a pressing base 52 between the two sets of pressing components 51 to fix the rotor and make the two ends of the rotor coaxially opposite to the two sets of pressing components 51, the rotor after the retaining ring assembly enters the pressing base 52, and the two sets of pressing components 51 can simultaneously assemble the bearings onto the shafts at both ends of the rotor to achieve one-time assembly. This not only improves the assembly efficiency of the bearings but also avoids rotor rotation that could affect the assembly accuracy.

[0057] The embodiments described above are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and modifications made by those skilled in the art based on the invention shall fall within the scope of protection of the present invention.

Claims

1. An automatic press-fitting device for double-end bearings of a motor rotor, characterized in that, It includes a frame (1), a feeding assembly (2) and a discharging assembly (3) respectively located at both ends of the frame (1), and a retaining ring clamping mechanism (4) and a bearing pressing mechanism (5) sequentially arranged between the feeding assembly (2) and the discharging assembly (3) along the conveying direction. The retaining ring clamping mechanism (4) includes two sets of clamping components (41) arranged symmetrically and clamping bases (42) respectively located at the front end of the two sets of clamping components (41) to support the rotor. The clamping components (41) are inserted into the clamping bases (42) for clamping. The bearing pressing mechanism (5) includes two sets of pressing components (51) arranged coaxially opposite each other. Between the two sets of pressing components (51) is a pressing base (52) that laterally supports and positions the rotor and makes the two sets of pressing components (51) coaxially opposite to the two ends of the rotor. The frame (1) is provided with a synchronous transfer mechanism (6) for synchronously transferring the rotor between the clamping base (42) and the pressing base (52) and between the pressing base (52) and the unloading component (3). The clamping assembly (41) includes a clamping cylinder (411) and a clamping connector (412) connected to the front end of the clamping cylinder (411). The clamping base (42) has a clamping channel (421) and a clamping interface (422) vertically connected to the clamping channel (421) on its side. The clamping connector (412) is inserted into the clamping channel (421). A guide strip (43) for conveying the clamping ring is connected to the clamping interface (422). A first feeding tray (44) is provided on the frame (1). The top end of the guide strip (43) is connected to the first feeding tray (44). The front end of the snap connector (412) is provided with a snap-in (413) that is adapted to the rotor end shaft. The side of the snap connector (412) corresponding to the snap-in (413) is provided with a snap groove (414) that is adapted to the snap ring and closely attached to the snap-in interface (422). The snap ring conveyed by the guide bar (43) is fitted into the snap groove (414). The feeding assembly (2) is provided with a transfer rack (7) connected to the mounting base (42) at its end. A locking block (423) is provided at the position where the mounting base (42) and the transfer rack (7) are connected. The locking block (423) and the front end of the mounting base (42) are combined to form a fixing groove (424) for fixing the rotor. A lifting cylinder (425) for driving the locking block (423) to rise and fall is connected to the bottom of the locking block (423). When the locking block (423) falls, the transfer rack (7) is connected to the mounting base (42). The pressing assembly (51) includes a pressing cylinder (511) arranged horizontally perpendicular to the conveying direction and a pressing bracket (512) connected to the front end of the pressing cylinder (511). A pressing head (513) is rotatably installed inside the pressing bracket (512). A conversion component (53) is provided on the side of the pressing bracket (512) to drive the pressing head (513) to rotate and switch between the horizontal and vertical directions. The press-fit base (52) includes a base plate (521) and an adjustment plate (522) that is laterally slidably installed on the base plate (521). Two rotor supports (523) are symmetrically installed on the adjustment plate (522), and the two rotor supports (523) correspond to the two press-fit heads (513) respectively. The pressing head (513) has a rotating shaft at both ends for its own rotation. One end of the rotating shaft passes through the side of the pressing bracket (512) and is fitted with a conversion gear (514). The conversion assembly (53) includes a conversion cylinder (531) disposed on the side of the pressing bracket (512) and a conversion rack (532) connected to the piston rod of the conversion cylinder (531). The conversion rack (532) meshes with the conversion gear (514) for transmission.

2. The automatic pressing device for double-end bearings of a motor rotor according to claim 1, characterized in that, The frame (1) is provided with a second feeding plate (54) for feeding bearings. The bottom of the pressing assembly (51) is provided with a material transfer channel (541) connected to the second feeding plate (54). The side of the material transfer channel (541) is provided with a mounting platform (542). The mounting platform (542) is located below the pressing head (513). The bottom of the mounting platform (542) is provided with an upper lifting cylinder (543) for lifting the bearing and clamping it into the pressing head (513). The front end of the material transfer channel (541) is provided with a transversely arranged transfer cylinder (544). The piston rod of the transfer cylinder (544) is connected to a transfer block (545) for pushing the bearing on the material transfer channel (541) to the mounting platform (542). The transfer block (545) is located on the end surface of the material transfer channel (541).

3. The automatic pressing device for double-end bearings of a motor rotor according to claim 1, characterized in that, The synchronous transfer mechanism (6) includes a transfer frame (61) fixedly installed on the frame (1) and a transfer track (62) installed on the transfer frame (61) and arranged along the rotor conveying direction. A transfer plate (63) is movably installed on the transfer track (62). Two transfer grippers (64) are vertically movably installed on the surface of the transfer plate (63). The distance between the two transfer grippers (64) is the same as the distance between the clamping base (42) and the pressing base (52).

4. The automatic pressing device for double-end bearings of a motor rotor according to claim 1, characterized in that, The feeding assembly (2) and the unloading assembly (3) both include a conveying bracket (11) connected to the frame (1), a conveying gear (12) located at both ends of the conveying bracket (11), and a conveying chain (13) installed inside the conveying bracket (11) and fitted onto the conveying gear (12). The conveying chain (13) is provided with a conveying base (14) for stabilizing the conveying rotor at equal intervals. The inner wall of the conveying bracket (11) is provided with a horizontally arranged support bar (15) for supporting the conveying chain (13).

5. The automatic press-fitting device for double-end bearings of a motor rotor according to claim 4, characterized in that, The transmission base (14) includes a transmission plate (141) fixedly installed on the transmission chain (13) and two transmission card holders (142) symmetrically arranged at both ends of the surface of the transmission plate (141). The transmission plate (141) is arranged horizontally to allow the rotor to be transmitted horizontally.

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