Horizontal rotor bearing press-fitting mechanism

By adopting the design of sliding table assembly and counterweight in the bearing pressing mechanism, the problem of the inability to move simultaneously in the pressing device is solved, and the synchronous pressing of bearings at both ends of the rotor body is realized, and the pressing efficiency and quality are improved.

CN222932175UActive Publication Date: 2025-06-03CHANGZHOU XIANGMING ELECTROMOTOR
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Patent Information

Application Number
CN202421755828.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-24
Publication Date
2025-06-03
Estimated Expiration
2034-07-24

AI Technical Summary

Technical Problem

In the existing bearing pressing technology, the pressing device cannot move accurately synchronously, resulting in poor pressing quality and difficulty in achieving synchronous pressing and mounting at both ends of the rotor body, affecting efficiency.

Method used

A horizontal rotor bearing pressing mechanism is designed, using sliding table components to realize self-positioning of pressing and mounting, and the positioning of the final pressing position is ensured through counterweight to ensure the uniformity and consistency of the bearing pressing mechanism at both ends.

Benefits of technology

Through the compensation effect of the sliding table assembly, the synchronous movement of the pressing devices on both sides is achieved, the quality and efficiency of the bearing pressing device are improved, and the bearing pressing at both ends of the rotor body can be carried out simultaneously.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a horizontal rotor bearing press-fitting mechanism which comprises a rack, and a press-fitting device is arranged on the rack. A working table is arranged on the rack, and press-fitting devices are symmetrically arranged at the two ends of the working table; a sliding table assembly used for placing a rotor body workpiece is arranged on the working table and located between the two press-fitting devices. The sliding table assembly comprises a sliding rail, a sliding table, a bearing body, a pull rope and a balance weight. The sliding rail is fixedly arranged on the working table; the sliding table is arranged on the sliding rail in a sliding mode and slides between the two press-fitting devices. A bearing body for placing a rotor body workpiece is fixedly arranged on the sliding table; a rope penetrating groove is formed in the position, located in the middle of the two press-fitting devices, of the working table top. One end of the pull rope is fixedly connected to the sliding table, and the other end penetrates through the rope penetrating groove and then is fixedly connected with the balance weight. And the counter weight is in a suspended state under the action of the pull rope. According to the utility model, bearings at two ends of the rotor body can be pressed simultaneously; meanwhile, press-fitting self-positioning can be achieved through the sliding table assembly, and the press-fitting quality of bearings at the two ends of the rotating shaft is guaranteed.
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Description

Technical Field

[0001] The utility model relates to the field of motor manufacturing equipment, and particularly relates to a horizontal rotor bearing pressing mechanism. Background Art

[0002] As an indispensable power device in modern industry and daily life, the performance and reliability of a motor largely depend on the precise manufacturing and assembly of the rotor body. The rotor body is a key component in the motor for realizing the conversion between mechanical energy and electrical energy, and its structure and materials directly affect the efficiency, power density, and service life of the motor.

[0003] As an important part of the rotor body, the bearing undertakes the important tasks of supporting the rotor shaft and reducing friction and wear. The installation quality of the bearing is directly related to the running stability and maintenance cost of the motor. Traditional bearing installation methods, such as hot fitting or cold fitting, have certain limitations. For example, hot fitting may cause changes in the material properties of the bearing, while cold fitting may damage the bearing or the shaft due to excessive installation force.

[0004] In order to improve the accuracy and reliability of bearing installation, bearing pressing technology has emerged. By precisely controlling the pressure and speed, the pressing technology evenly presses the bearing onto the rotor shaft, ensuring a tight fit between the bearing and the shaft, and at the same time avoiding damage to the bearing or the shaft. Modern bearing pressing technology usually uses hydraulic or pneumatic systems to achieve, with the advantages of simple operation, high installation efficiency, and strong adaptability.

[0005] Currently, bearing pressing generally adopts vertical pressing, that is, placing the rotor body workpiece on the bearing plate, and then pressing the bearing onto the rotating shaft of the rotor body workpiece from above. After the pressing is completed, the rotor body workpiece is inverted and pressed again. This is because when pressing, the rotor body workpiece needs a force application point to carry out the pressing. If pressing is carried out simultaneously at both ends, if the pressing devices at both ends cannot achieve precise synchronization, it is easy to affect the pressing quality of the bearing. If the problem of poor pressing quality caused by the inability of the pressing devices to be synchronized can be effectively solved, then simultaneous pressing at both ends can be achieved, greatly improving the pressing efficiency. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a horizontal rotor bearing pressing mechanism, which can simultaneously press the bearings at both ends of the rotor body workpiece, effectively improving the pressing efficiency; at the same time, through the slide table assembly, self-positioning during pressing can be realized, ensuring the pressing quality of the bearings at both ends of the rotating shaft.

[0007] The technical solution for achieving the object of the present utility model is as follows: The present utility model includes a frame, and a pressing device is provided on the frame; characterized in that: a workbench surface is provided on the frame, and pressing devices are symmetrically provided at both ends of the workbench surface; a sliding table assembly for placing rotor body workpieces is provided between the pressing devices on the workbench surface; the pressing device includes a pressing head and a driving component; the pressing head is used for loading bearings and pressing the bearings on the corresponding sides of the rotating shafts of the rotor body workpieces under the drive of the driving component; the sliding table assembly includes a slide rail, a sliding table, a carrier, a pulling rope and a counterweight; the slide rail is fixedly arranged on the workbench surface; the sliding table is slidably arranged on the slide rail, and the sliding table slides between the two pressing devices; a carrier for placing rotor body workpieces is fixedly provided on the sliding table; a rope passing groove is provided at the exact middle position between the two pressing devices on the workbench surface; one end of the pulling rope is fixedly connected to the sliding table, and the other end passes through the rope passing groove and is fixedly connected to the counterweight; the counterweight is in a suspended state under the action of the pulling rope.

[0008] Furthermore, each pressing device is also equipped with a feeding device, and the two feeding devices are symmetrically arranged; the feeding device includes a workpiece loading assembly, a feeding assembly and a guiding assembly; the workpiece loading assembly includes a loading ramp, a baffle plate and a first driving device; the loading ramp is fixedly connected to the frame; the loading ramp includes a bottom plate inclined towards the pressing device, and left side baffles, right side baffles and a lower baffle are respectively fixedly provided on the left and right sides and the lower side of the bottom plate; the bottom plate, the left side baffles, the right side baffles and the lower baffle form a loading groove for loading bearings; a through groove extending from the left side baffle to the right side baffle is provided on the bottom plate near the lower baffle; the baffle plate travels through the through groove under the drive of the first driving device, and the baffle plate enters the loading groove under the drive of the first driving device to block the bearings from rolling down, or exits the loading groove under the drive of the first driving device to release the bearings to roll down; when the baffle plate enters the loading groove, the baffle plate divides the loading groove into a stock preparation area and a feeding area; the baffle plate forms a stock preparation area on the upper side of the bottom plate, and a feeding area is formed between the baffle plate and the lower baffle; a discharge port is provided in the feeding area.

[0009] The feeding assembly includes a push plate that sequentially pushes the bearings in the feeding area towards the discharge port under the drive of a second driving device; the guiding assembly includes a guiding groove; one end of the guiding groove is connected and communicated with the discharge port, and the other end of the guiding groove is communicated with the bearing loading groove of the pressing head; the end of the guiding groove connected to the discharge port is higher than the other end; the bearings coming out of the discharge port are arranged in the guiding groove and keep the tendency of rolling towards the bearing loading groove.

[0010] Furthermore, the above-mentioned feeding assembly includes a mounting frame fixedly mounted on the frame; the mounting frame is located above the feeding area; the second driving device includes a screw rod, a guide rail, a slider and a driving motor; the screw rod is rotatably mounted on the mounting frame, and one end of the screw rod is transmission-connected to the driving motor; the guide rail is fixedly mounted on the mounting frame; the guide rail is arranged parallel to the screw rod; a threaded through hole is provided on the slider for cooperating with the screw rod thread; the slider cooperates with the screw rod through the threaded through hole, and the slider cooperates with the guide rail in a sliding manner; a push plate is fixedly connected to the slider; the screw rod extends from the left baffle to the right baffle.

[0011] Furthermore, both the left baffle plate and the right baffle plate extend from the upper side of the bottom plate to the baffle plate; the lower end of the left baffle plate and the lower end of the right baffle plate form a left notch and a right notch with the lower baffle plate respectively; the right notch of the left loading device serves as the discharge port, and the left notch of the right loading device serves as the discharge port; the pushing plate of the left loading device blocks the left notch when it is in the initial position of pushing, and the pushing plate of the right loading device blocks the right notch when it is in the initial position of pushing.

[0012] Furthermore, the above-mentioned carrier includes support plates symmetrically arranged on the left and right sides of the slide; the support plates are provided with grooves for mounting the rotating shaft of the rotor body workpiece; the slide is provided with multiple slots; and the support plates are inserted into the corresponding slots.

[0013] Furthermore, the above-mentioned pressing device includes a first end plate, a second end plate, a pressing head and a driving component; the first end plate and the second end plate are detachably fixedly mounted on the workbench, and the first end plate and the second end plate are arranged at intervals according to the movement direction of the pressing head; the first end plate and the second end plate are fixedly connected together by multiple connecting rods; the connecting rods are distributed according to the movement direction of the pressing head; the driving component is fixedly connected to the first end plate; the first end plate and the second end plate are both provided with guide holes for the pressing head to pass through; the driving end of the driving component passes through the guide hole on the first end plate and then extends into the pressing head, and is fixedly connected to the pressing head; when the pressing head is in a loading state, the two ends of the pressing head are respectively located in the guide holes of the first end plate and the second end plate; the guide hole of the second end plate is provided with a first notch for the bearing to roll into; the bearing bearing groove of the pressing head is also provided with a second notch for the bearing to roll into; when the pressing head is in a loading state, the first notch and the second notch match and correspond to each other and are connected with the guide groove.

[0014] Furthermore, the first end plate and the second end plate are both provided with connecting ends; adjustment grooves for sliding cooperation of the connecting ends of the first end plate and the second end plate are symmetrically provided on the left and right sides of the work surface; a threaded through hole is provided on the connecting end; the connecting end is cooperated with a clamping bolt that cooperates with its threaded through hole to form a detachable fixation with the work surface.

[0015] Furthermore, the above guiding component includes a pressing plate; one end of the pressing plate is fixedly connected to the loading ramp; the other end of the pressing plate extends to the first notch and is detachably and fixedly connected to the second end plate; the pressing plate cooperates with the loading ramp and the second end plate to form a guiding groove.

[0016] Furthermore, a vertical rod is also fixedly provided on the above workbench; a controller for controlling the pressing device and the feeding device is fixedly provided on the vertical rod.

[0017] Furthermore, threading grooves are symmetrically provided on the front and rear sides of the sliding table on the above workbench; a first pulley and a second pulley are relatively rotatably provided in each threading groove; third pulleys are rotatably provided on the front and rear sides of the sliding table; a pulling rope is fixedly provided on each third pulley, and each pulling rope passes between the first pulley and the second pulley on the corresponding side, and the pulling rope is adapted to the pulley groove of the first pulley and the pulley groove of the second pulley on the corresponding side; the pulling ropes on the front and rear sides of the sliding table are fixedly connected to a counterweight.

[0018] Furthermore, a protective cover is fixedly connected between the first end plate and the second end plate; the protective cover covers the connecting rod, the pressing head, and the driving end of the driving component therein to meet the requirements of safe production.

[0019] The utility model has positive effects: (1) Through the sliding table assembly, the utility model can play a compensating role when the pressing devices on both sides cannot move precisely synchronously (which is inevitable), and the final pressing position is positioned through the counterweight, ensuring the uniformity and consistency of the forces when the bearings at both ends are pressed, and improving the quality of the synchronous pressing at both ends of the rotor body. At the same time, it makes it possible to press the bearings synchronously at both ends.

[0020] (2) In the utility model, the feeding device can load a large number of bearings at one time, and can meet the requirements of multiple pressings after one loading. At the same time, the feeding device has a stockpiling area and a feeding area, and the stockpiling area does not affect the feeding of the bearings.

[0021] (3) In the utility model, the rolling feeding of the bearings basically relies on the self-rolling of the bearings in addition to the pushing of the feeding assembly. The structural design is simple and effective.

[0022] (4) In the utility model, the carrier uses a support piece and is inserted and matched with the sliding table through a card slot, which can realize the free adjustment of the carrier, so as to adapt to various types of rotor body workpieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to make the content of the utility model easier to be clearly understood, the following further detailed description of the utility model is made according to specific embodiments in conjunction with the drawings, where

[0024] Figure 1 is the structural schematic diagram of the utility model;

[0025] Figure 2 It is a top view of the utility model;

[0026] Figure 3 for Figure 1 The enlarged view of point A in the middle;

[0027] Figure 4 This is a position relationship diagram of the slide table and the rope threading groove in the utility model;

[0028] Figure 5 This is a schematic diagram of the cooperation between the support sheet and the slide in the utility model;

[0029] Figure 6 It is a structural schematic diagram of the medium pressure installation device of the utility model;

[0030] Figure 7 This is a schematic diagram of the structure of the medium-pressure loading head of the utility model;

[0031] Figure 8 It is a structural schematic diagram of the feeding device in the utility model;

[0032] Figure 9 This is a schematic diagram of the rear structure of the feeding device in the utility model;

[0033] Figure 10 It is a structural schematic diagram of the feeding component in the utility model. DETAILED DESCRIPTION

[0034] See Figures 1 to 10 The utility model includes a frame, on which a press-fitting device 1 is provided; the frame is provided with a work surface 2, and press-fitting devices 1 are symmetrically provided at both ends of the work surface 2; a slide assembly 3 for placing a rotor workpiece is provided on the work surface 2 between the press-fitting devices 1; the press-fitting device 1 includes a press-fitting head 11 and a driving component 12; wherein the driving component 12 can generally adopt a cylinder or a hydraulic cylinder. The press-fitting head 11 is used to load the bearing, and to press-fit the bearing on the corresponding side of the rotating shaft of the rotor workpiece under the drive of the driving component 12; the slide assembly 3 includes a slide rail 31, a slide 32, a carrier 33, a pull rope 34 and a counterweight 35; the slide rail 31 is fixedly arranged on the work table 2; the slide 32 is slidably arranged on the slide rail 31, and the slide 32 slides between the two press-fitting devices 1; a carrier 33 for placing the rotor workpiece is fixedly arranged on the slide 32; the carrier 33 includes support plates symmetrically arranged on the left and right sides of the slide 32; the support plate is provided with a groove 331 for mounting the rotating shaft of the rotor workpiece; the slide 32 is provided with a plurality of slots 321; the support plate is inserted in the corresponding slot 321.

[0035] On the workbench surface 2, rope threading grooves 21 are symmetrically arranged on the front and rear sides of the sliding table 32; the rope threading grooves 21 are located exactly in the middle between the two pressing devices 1; a first pulley 211 and a second pulley 212 are rotatably arranged relative to each other in each rope threading groove 21; third pulleys 322 are rotatably arranged on the front and rear sides of the sliding table 32; a pulling rope 34 is fixedly arranged on each third pulley 322, and each pulling rope 34 passes between the first pulley 211 and the second pulley 212 on the corresponding side, and the pulling rope 34 is adapted to the pulley groove of the first pulley 211 and the pulley groove of the second pulley 212 on the corresponding side; the pulling ropes 34 on the front and rear sides of the sliding table 32 are fixedly connected to a counterweight 35; the counterweight 35 is in a suspended state under the action of the pulling ropes 34.

[0036] Each pressing device 1 is also equipped with a feeding device 4, and the two feeding devices 4 are symmetrically arranged; the feeding device 4 includes a workpiece loading assembly 41, a feeding assembly 42 and a guiding assembly 43; the workpiece loading assembly 41 includes a loading ramp 411, a baffle 412 and a first driving device 413; the loading ramp 411 is fixedly connected to the machine frame; the loading ramp 411 includes a bottom plate inclined towards the pressing device 1, and a left side baffle, a right side baffle and a lower baffle are respectively fixedly arranged on the left and right sides and the lower side of the bottom plate; the bottom plate, the left side baffle, the right side baffle and the lower baffle form a loading groove for loading bearings; a through groove extending from the left side baffle to the right side baffle is arranged on the bottom plate near the lower baffle; the baffle 412 travels through the through groove under the drive of the first driving device 413, and the baffle 412 enters the loading groove under the drive of the first driving device 413 to block the bearing from rolling down, or exits the loading groove under the drive of the first driving device 413 to release the bearing to roll down; when the baffle 412 enters the loading groove, the baffle 412 divides the loading groove into a stock preparation area 411-1 and a feeding area 411-2; the baffle 412 forms the stock preparation area 411-1 on the upper side of the bottom plate, and an upper feeding area 411-2 is formed between the baffle 412 and the lower baffle; a discharge port 411-3 is arranged in the upper feeding area 411-2;

[0037] The feeding assembly 42 includes a pushing plate 422 that sequentially pushes the bearings in the upper feeding area 411-2 towards the discharge port 411-3 under the drive of a second driving device 421; the guiding assembly 43 includes a guiding groove 431; one end of the guiding groove 431 is connected and communicated with the discharge port 411-3, and the other end of the guiding groove 431 is communicated with the bearing bearing groove 111 of the pressing head 11; the end of the guiding groove 431 connected and communicated with the discharge port 411-3 is higher than the other end; the bearings coming out of the discharge port 411-3 are arranged in the guiding groove 431 and keep the tendency to roll towards the bearing bearing groove 111.

[0038] The above-mentioned first driving device 413 uses a cylinder.

[0039] The placement method of the above bearings is as follows:

[0040] The placement method of the bearings in the stock preparation area 411-1: They are arranged in multiple rows of bearing groups from top to bottom along the inclined plane of the bottom plate; each bearing group includes multiple bearings arranged coaxially, and the circumferential surface of the bearing contacts the bottom plate. Under the blocking action of the baffle plate 412, the downward rolling of the bearing group can be restricted.

[0041] The placement method of the bearings in the feeding area 411-2: When the baffle plate 412 withdraws from the loading groove, the lowermost bearing group at the stock preparation area 411-1 naturally rolls into the feeding area 411-2. At this time, the baffle plate 412 is just at the separation point between the upper and lower bearing groups. After the baffle plate 412 is inserted into the loading groove, the bearing group at the stock preparation area 411-1 is blocked, and the bearing group in the feeding area 411-2 is separated from the bearing group at the stock preparation area 411-1 and is still arranged coaxially.

[0042] Specifically, the feeding assembly 42 includes a mounting bracket 423 fixedly arranged on the frame; the mounting bracket 423 is located above the feeding area 411-2; the second driving device 421 includes a lead screw 421-1, a guide rail 421-2, a slider 421-3 and a driving motor 421-4; the lead screw 421-1 is rotatably arranged on the mounting bracket 423, and one end of the lead screw 421-1 is in transmission connection with the driving motor 421-4; the guide rail 421-2 is fixedly arranged on the mounting bracket 423; the guide rail 421-2 is arranged in parallel with the lead screw 421-1; the slider 421-3 is provided with a threaded through hole that is in threaded cooperation with the lead screw 421-1; the slider 421-3 is in cooperation with the lead screw 421-1 through the threaded through hole, and the slider 421-3 is in sliding cooperation with the guide rail 421-2; a pushing plate 422 is fixedly connected to the slider 421-3; the lead screw 421-1 extends from the left baffle to the right baffle.

[0043] Both the left baffle and the right baffle extend from the upper side of the bottom plate to the baffle plate 412; the lower ends of the left baffle and the right baffle respectively form a left gap and a right gap with the lower baffle; the right gap of the left feeding device 4 serves as the discharge port 411-3, and the left gap of the right feeding device 4 serves as the discharge port 411-3; when the pushing plate 422 of the left feeding device 4 is in the initial pushing position, it blocks the left gap, and when the pushing plate 422 of the right feeding device 4 is in the initial pushing position, it blocks the right gap. The so-called initial pushing position means that when all the bearings in the feeding area 411-2 have entered the guiding groove 431 and the bearing group in the stock preparation area 411-1 needs to enter the feeding area 411-2, in order to ensure the smooth entry of the bearing group into the feeding area 411-2, the initial position to which the second driving device 421 needs to retract the pushing plate 422 is the position that blocks the left gap or the right gap.

[0044] The press-fitting device 1 further includes a first end plate 13 and a second end plate 14; the first end plate 13 and the second end plate 14 are detachably and fixedly installed on the workbench surface 2, and the first end plate 13 and the second end plate 14 are arranged at intervals along the movement direction of the press head 11; the first end plate 13 and the second end plate 14 are fixedly connected together by a plurality of connecting rods 15; the connecting rods 15 are distributed along the movement direction of the press head 11; the driving component 12 is fixedly connected to the first end plate 13; guiding holes 16 through which the press head 11 can pass are provided on both the first end plate 13 and the second end plate 14; the driving end of the driving component 12 passes through the guiding hole 16 on the first end plate 13 and then extends into the press head 11 and is fixedly connected to the press head 11; when the press head 11 is in the feeding state, both ends of the press head 11 are located in the guiding holes 16 of the first end plate 13 and the second end plate 14 respectively; a first notch through which the bearing can roll into is provided in the guiding hole 16 of the second end plate 14; a second notch through which the bearing can roll into is also provided on the bearing bearing groove 111 of the press head 11; when the press head 11 is in the feeding state, the first notch and the second notch cooperate and correspond to each other and communicate with the guiding groove 431.

[0045] Connecting ends 17 are provided on both the first end plate 13 and the second end plate 14; adjusting grooves 22 for the connecting ends 17 of the first end plate 13 and the second end plate 14 to slide and cooperate are symmetrically provided on the left and right sides of the workbench surface 2; threaded through holes are provided on the connecting ends 17; the connecting ends 17 form a detachable fixation with the workbench surface 2 through cooperation with pressing bolts that match their threaded through holes. Through the sliding adjustment of the connecting ends 17, the press-fitting requirements of rotor body workpieces of different models can be met.

[0046] In this embodiment, the loading ramp 411 is hung on the first end plate 13 and the second end plate 14 and does not need to be fixedly connected to the frame; the specific method is as follows: Hook bodies 411-4 are respectively provided on the left and right sides of the bottom plate, and a first positioning plane is milled on the inner wall of the hook groove of the hook body 411-4; a second positioning plane is milled on the outer circumferential surface of the guiding hole 16 on the first end plate 13 and the second end plate 14; the hook bodies 411-4 on the left and right sides of the bottom plate are respectively hung on the guiding holes 16 of the first end plate 13 and the second end plate 14, and the first positioning plane and the second positioning plane cooperate for positioning, so that the loading ramp 411 is inclined.

[0047] The guiding assembly 43 includes a pressing plate 432; one end of the pressing plate 432 is fixedly connected to the loading ramp 411; the other end of the pressing plate 432 extends to the first notch and is detachably fixedly connected to the second end plate 14; the pressing plate 432 cooperates with the loading ramp 411 and the second end plate 14 to form a guiding groove 431.

[0048] A vertical rod 5 is also fixedly provided on the workbench surface 2; a controller 6 for controlling the pressing device 1 and the feeding device 4 is fixedly provided on the vertical rod 5.

[0049] A protective cover 18 is fixedly connected between the first end plate 13 and the second end plate 14; the protective cover 18 covers the connecting rod 15, the pressing head 11, and the driving end of the driving component 12 to meet the requirements of safe production.

[0050] The working process of the present utility model is as follows:

[0051] First, the bearing is loaded, and the loading method is as follows:

[0052] The bearings are placed in the stock preparation area 411-1, and the placement method is to arrange them in multiple rows of bearing groups from top to bottom along the inclined surface of the bottom plate; each bearing group includes multiple coaxially arranged bearings, and the circumferential surface of the bearing contacts the bottom plate. Under the blocking action of the baffle 412, the downward rolling of the bearing group can be restricted.

[0053] Then the baffle 412 withdraws from the loading groove, and the lowermost bearing group at the stock preparation area 411-1 naturally rolls into the feeding area 411-2. At this time, the baffle 412 is just at the separation point between the upper and lower bearing groups. After the baffle 412 is inserted into the loading groove, the bearing group at the stock preparation area 411-1 is blocked, and the bearing group in the feeding area 411-2 is separated from the bearing group at the stock preparation area 411-1 and is still coaxially arranged.

[0054] Then, the feeding assembly 42 works, and the bearings are successively pushed out from the discharge port 411-3 through the pushing plate 422 and enter the guiding groove 431. The bearings are arranged in the guiding groove 431 under the action of gravity and maintain the tendency to roll towards the bearing receiving groove 111.

[0055] When the pressing head 11 is in the feeding state, the first notch and the second notch cooperate and communicate with the guiding groove 431. At this time, the bearings in the guiding groove 431 naturally fall into the bearing receiving groove 111 of the pressing head 11, completing the feeding of the bearings.

[0056] Then the rotor body workpiece is placed on the carrier 33 of the sliding table assembly 3.

[0057] Then, under the drive of the drive component 12, the press-fitting heads 11 on both the left and right sides press-fit the bearings onto the rotor body workpiece. At the initial stage of press-fitting, the press-fitting devices 1 on both the left and right sides may not be synchronized. The press-fitting device 1 on the side that first touches the rotor body workpiece will push the slide assembly 3 to slide. However, under the action of the counterweight, the sliding assembly 3 always moves towards the exact middle position. When the other press-fitting device 1 touches the rotor body workpiece, under the action of the self-centering of the sliding assembly 3, finally, the rotor body workpiece will complete the press-fitting at the exact middle position, and under the press-fitting forces at both ends, the press-fitting can be carried out synchronously.

[0058] In the specific embodiments described above, the purpose, technical solutions, and beneficial effects of the present invention have been further described in detail. It should be understood that the above are only specific embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A horizontal rotor bearing press-fitting mechanism, comprising a frame, on which a press-fitting device is provided; characterized in that: The frame is provided with a work surface, and press-fitting devices are symmetrically provided at both ends of the work surface; a slide assembly for placing the rotor workpiece is provided between the two press-fitting devices on the work surface; the press-fitting device comprises a press-fitting head and a driving component; the press-fitting head is used to load the bearing, and press-fit the bearing on the corresponding side of the rotating shaft of the rotor workpiece under the drive of the driving component; the slide assembly comprises a slide rail, a slide, a bearing, a pull rope and a counterweight; The slide rail is fixedly arranged on the work surface; the slide table is slidably arranged on the slide rail, and the slide table slides between the two pressing devices; a carrier for placing the rotor body workpiece is fixedly arranged on the slide table; a rope threading groove is arranged on the work surface in the middle of the two pressing devices; one end of the pull rope is fixedly connected to the slide table, and the other end is fixedly connected to the counterweight after passing through the rope threading groove; the counterweight is in a suspended state under the action of the pull rope.

2. The horizontal rotor bearing press-fitting mechanism according to claim 1, characterized in that: Each pressing device is also equipped with a feeding device, and the two feeding devices are symmetrically arranged; the feeding device includes a workpiece loading assembly, a feeding assembly and a guiding assembly; the workpiece loading assembly includes a loading ramp, a baffle plate and a first driving device; the loading ramp is fixedly connected to the frame; the loading ramp includes a bottom plate inclined toward the pressing device, and the left and right sides and the lower side of the bottom plate are respectively fixed with a left baffle plate, a right baffle plate and a lower baffle plate; the bottom plate, the left baffle plate, the right baffle plate and the lower baffle plate form a loading slot for loading bearings; the bottom plate A through slot extending from the left baffle plate to the right baffle plate is provided near the lower baffle plate; the baffle plate passes through the through slot when driven by the first driving device, and enters the loading slot when driven by the first driving device to prevent the bearing from rolling downward, or exits the loading slot when driven by the first driving device to release the bearing from rolling downward; when the baffle plate enters the loading slot, the baffle plate divides the loading slot into a preparation area and a loading area; the baffle plate forms a preparation area on the upper side of the bottom plate, and a loading area is formed between the baffle plate and the lower baffle plate; a discharge port is provided on the loading area; The feeding assembly includes a pushing plate which pushes the bearings in the feeding area toward the discharge port in sequence under the drive of the second driving device; the guiding assembly includes a guiding groove; one end of the guiding groove is connected to the discharge port, and the other end of the guiding groove is connected to the bearing bearing groove of the pressing head; the end of the guiding groove connected to the discharge port is higher than the other end; the bearings coming out of the discharge port are arranged in the guiding groove and maintain a tendency to roll toward the bearing bearing groove.

3. The horizontal rotor bearing press-fitting mechanism according to claim 2, characterized in that: The feeding assembly includes a mounting frame fixedly mounted on the frame; the mounting frame is located above the feeding area; the second driving device includes a screw rod, a guide rail, a slider and a driving motor; the screw rod is rotatably mounted on the mounting frame, and one end of the screw rod is transmission-connected to the driving motor; the guide rail is fixedly mounted on the mounting frame; the guide rail is arranged parallel to the screw rod; a threaded through hole is provided on the slider that cooperates with the screw rod thread; the slider cooperates with the screw rod through the threaded through hole, and the slider cooperates with the guide rail in a sliding manner; a push plate is fixedly connected to the slider; the screw rod extends from the left baffle to the right baffle.

4. The horizontal rotor bearing press-fitting mechanism according to claim 2 or 3, characterized in that: The left baffle plate and the right baffle plate both extend from the upper side of the bottom plate to the baffle plate; the lower end of the left baffle plate and the lower end of the right baffle plate form a left notch and a right notch with the lower baffle plate respectively; the right notch of the left loading device serves as the discharge port, and the left notch of the right loading device serves as the discharge port; the pushing plate of the left loading device blocks the left notch when it is in the initial position of pushing, and the pushing plate of the right loading device blocks the right notch when it is in the initial position of pushing.

5. The horizontal rotor bearing press-fitting mechanism according to claim 1, characterized in that: The carrier includes support plates symmetrically arranged on the left and right sides of the slide; the support plates are provided with grooves for mounting the rotating shaft of the rotor body workpiece; the slide is provided with a plurality of slots; the support plates are inserted into the corresponding slots.

6. The horizontal rotor bearing press-fitting mechanism according to claim 1 or 2, characterized in that: The pressing device includes a first end plate, a second end plate, a pressing head and a driving component; the first end plate and the second end plate are detachably fixedly mounted on the workbench, and the first end plate and the second end plate are arranged at intervals according to the movement direction of the pressing head; the first end plate and the second end plate are fixedly connected together by multiple connecting rods; the connecting rods are distributed according to the movement direction of the pressing head; the driving component is fixedly connected to the first end plate; the first end plate and the second end plate are both provided with guide holes for the pressing head to pass through; the driving end of the driving component passes through the guide hole on the first end plate and then extends into the pressing head, and is fixedly connected to the pressing head; when the pressing head is in a loading state, the two ends of the pressing head are respectively located in the guide holes of the first end plate and the second end plate; the guide hole of the second end plate is provided with a first notch for the bearing to roll into; the bearing bearing groove of the pressing head is also provided with a second notch for the bearing to roll into; when the pressing head is in a loading state, the first notch and the second notch cooperate with each other and are connected to the guide groove.

7. The horizontal rotor bearing press-fitting mechanism according to claim 6, characterized in that: The first end plate and the second end plate are both provided with connecting ends; adjustment grooves for sliding cooperation of the connecting ends of the first end plate and the second end plate are symmetrically provided on the left and right sides of the work surface; a threaded through hole is provided on the connecting end; the connecting end is cooperated with a clamping bolt that cooperates with its threaded through hole to form a detachable fixation with the work surface.

8. The horizontal rotor bearing press-fitting mechanism according to claim 2, characterized in that: The guide assembly includes a pressing plate; one end of the pressing plate is fixedly connected to the loading slope; the other end of the pressing plate extends to the first notch and is detachably fixedly connected to the second end plate; the pressing plate cooperates with the loading slope and the second end plate to form a guiding groove.

9. The horizontal rotor bearing press-fitting mechanism according to claim 1, characterized in that: The work table is symmetrically provided with rope threading grooves on the front and rear sides of the slide; a first pulley and a second pulley are relatively rotatable in each rope threading groove; a third pulley is rotatably provided on the front and rear sides of the slide; a pull rope is fixedly provided on each third pulley, and each pull rope passes between the first pulley and the second pulley on the corresponding side, and the pull rope is adapted to the pulley groove of the first pulley and the pulley groove of the second pulley on the corresponding side; the pull ropes on the front and rear sides of the slide are fixedly connected to a counterweight.

10. The horizontal rotor bearing press-fitting mechanism according to claim 6, characterized in that: A shield is fixedly connected between the first end plate and the second end plate; the shield covers the connecting rod, the pressing head and the driving end of the driving component.