Rotating shaft into iron core press-fitting equipment and operation method thereof

Abstract

The present invention discloses a rotating shaft into iron core press-fitting equipment and an operation method thereof. The equipment comprises a frame, an iron core feeding mechanism, an iron core height measuring and positioning mechanism, an iron core coding mechanism, a rotating shaft feeding mechanism, a rotating shaft press-fitting mechanism and a conveying device. The iron core feeding mechanism, the rotating shaft feeding mechanism and the rotating shaft press-fitting mechanism are connected to each other; the conveying device is located between the mechanisms; and the rotating shaft feeding mechanism comprises a secondary lifting device, which is located beside the rotating shaft press-fitting mechanism. By integrating the mechanisms and the conveying device for transferring the iron core on the frame to form a rotating shaft into iron core press-fitting equipment, the equipment realizes automatic feeding and detection of the iron core, automatic feeding of the rotating shaft, secondary lifting and transfer of the rotating shaft, and automatic pressing of the rotating shaft on the iron core. All the processes of rotating shaft into the iron core are automatically operated, which saves a lot of manual labor and improves the efficiency of motor assembly.

Description

Technical Field

[0001] The invention relates to the technology of motor assembly field, and in particular to a rotating shaft into iron core press-fitting device and an operating method thereof. Background Art

[0002] In modern industrial production, the motor is a core power component, and the assembly efficiency and accuracy of its rotor have a crucial impact on the performance of the entire motor. In the prior art, the assembly process of the motor rotor has some obvious limitations. First, the assembly of the rotor involves the precise matching of the iron core and the shaft. In the process of handling this, the traditional motor assembly equipment requires a long-stroke drive component to transfer the shaft material, which makes the equipment structure complicated and the volume increases accordingly. This design not only increases the manufacturing cost, but also limits the flexibility and scalability of the assembly line.

[0003] Secondly, the quality of the iron core, as an important component of the rotor, directly affects the performance and life of the motor. However, the existing detection mechanism design is too decentralized, resulting in the iron core passing through multiple detection points during the handling process, which not only increases the complexity of material handling, but also reduces the efficiency of detection and assembly. This decentralized detection process not only increases the difficulty of operation, but also easily leads to errors in the detection process, affecting the quality of the final product.

[0004] In view of the above problems, it is particularly urgent to improve the assembly process and inspection process of the motor rotor. By optimizing the installation method of the shaft and the detection mechanism of the core, the assembly efficiency can be significantly improved, the equipment volume can be reduced, the production cost can be reduced, and the overall performance of the motor can be improved. Therefore, the development of a new type of motor rotor assembly equipment that can simplify the installation process of the shaft and integrate the inspection process of the core is of great significance to improving the competitiveness of the motor manufacturing industry. Summary of the invention

[0005] In view of this, the present invention aims at the deficiencies in the prior art, and its main purpose is to provide a rotating shaft into the iron core press-fitting device and its operating method, which realizes the automatic feeding and detection of the iron core, the automatic feeding of the rotating shaft, the secondary lifting and transfer of the rotating shaft, and the automatic press-fitting of the rotating shaft into the iron core. All the processes of rotating shaft into the iron core are automatically operated, which saves a lot of manual labor and improves the efficiency of motor assembly.

[0006] To achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A rotating shaft into iron core press-fitting equipment, comprising a frame, an iron core feeding mechanism installed on the frame, an iron core height measuring and positioning mechanism, an iron core coding mechanism, a rotating shaft feeding mechanism, a rotating shaft press-fitting mechanism and a handling device for transferring the iron core, wherein the iron core feeding mechanism, the rotating shaft feeding mechanism and the rotating shaft press-fitting mechanism are connected to each other; the handling device is located between the iron core feeding mechanism, the iron core height measuring and positioning mechanism, the iron core coding mechanism and the rotating shaft press-fitting mechanism; and the rotating shaft feeding mechanism comprises a secondary ejecting device, and the secondary ejecting device is located beside the rotating shaft press-fitting mechanism.

[0008] As a preferred solution: the iron core feeding mechanism includes an iron core feeding motor, a turntable, a plurality of barrels for holding iron cores, a ejecting rod and an ejecting drive motor. The turntable is installed on the shaft end of the iron core feeding motor, and a plurality of barrels are arranged at intervals along the circumference of the turntable. The ejecting drive motor is installed on the side of the turntable. The ejecting rod is vertically installed on the shaft end of the ejecting drive motor and moves in the barrel driven by the ejecting drive motor to eject the iron core at the top of the barrel upward out of the outside of the barrel.

[0009] As a preferred solution: the core height measurement and positioning mechanism includes a height measurement component and a positioning component, the height measurement component includes a height measurement bracket, a material receiving platform, a clamping seat, a height measurement cylinder, a GT sensor, an outer pressure piece, an inner pressure piece, a first spring and a second spring, the height measurement cylinder is installed on one side of the height measurement bracket, the clamping seat can be slidably installed on the other side of the height measurement bracket and is connected to the shaft end of the height measurement cylinder; the material receiving platform is located below the clamping seat; the GT sensor is installed on the upper end of the clamping seat, and the outer pressure piece can be slidably installed on the other side of the height measurement bracket. The lower end of the clamping seat, the first spring abuts between the upper end of the clamping seat and the upper end of the outer pressure piece; the inner pressure piece can be slidably installed up and down on the inner side of the outer pressure piece, and the second spring abuts between the outer pressure piece and the inner pressure piece; the positioning assembly includes a positioning motor, a support platform and a laser displacement sensor, the positioning motor is installed below the support platform, the material receiving platform can be rotatably installed above the support platform, and is connected to the shaft end of the positioning motor; the laser displacement sensor is installed on the height measuring bracket and faces the material receiving platform.

[0010] As a preferred solution: the iron core coding mechanism includes a laser coding device and a transfer mechanism connected between the laser coding device and the iron core height measuring and positioning mechanism.

[0011] As a preferred solution: the rotating shaft feeding mechanism includes a silo and an adjusting mechanism for adjusting the width of the silo, and the adjusting mechanism is installed on the silo; the secondary feeding device is connected to the discharge port of the silo.

[0012] As a preferred solution: the silo includes a base, a fixed plate and a movable plate, the fixed plate is fixedly mounted on the base, the movable plate can be laterally movably mounted on the base, and a silo for accommodating multiple rotating shafts is formed between the fixed plate and the movable plate; the adjustment mechanism includes an adjustment handle, an adjustment screw and a linear bearing, one end of the adjustment screw can be rotatably matched with the fixed plate, and the other end is connected to the adjustment handle; and the movable plate is threadedly matched with the adjustment screw, and the linear bearing is laterally arranged on the base, and the lower end of the movable plate is matched with the linear bearing; when the adjustment handle is turned, the adjustment screw rotates, and the movable plate moves laterally on the base with the assistance of the linear bearing, and the width of the silo is changed.

[0013] As a preferred solution: the silo has a support plate inclined toward the secondary ejecting device, and the rotating shaft in the silo rolls on the support plate to the discharge port under the action of gravity.

[0014] As a preferred scheme: the secondary lifting device includes a lifting bracket, a first lifting plate, a second lifting plate and a lifting cylinder, the lifting bracket is hollow inside, and a receiving block is arranged in the lifting bracket, a first lifting trough for lifting the first lifting plate is formed between the receiving block and the left inner wall of the lifting bracket, and the lower end of the first lifting trough is communicated with the discharge port of the hopper; the first lifting plate slides vertically in the first lifting trough; a second lifting trough for lifting the second lifting plate is formed between the receiving block and the right inner wall of the lifting bracket, and the second lifting plate slides vertically in the second lifting trough; the lifting cylinder is installed at the lower end of the lifting bracket, and the lower ends of the first and second lifting plates are connected to the axial end of the lifting cylinder; the upper surface of the receiving block extends downwardly from the first lifting trough to the direction of the second lifting trough; a V-shaped material receiving trough is arranged on the outer side of the lifting bracket near the top of the second lifting trough.

[0015] As a preferred solution: the rotating shaft pressing mechanism includes a pressing bracket, a pressing platform, a pressing electric cylinder and a pressing holding mechanism, the pressing electric cylinder is vertically installed on the top of the pressing bracket, the pressing platform can be movably installed on the pressing bracket up and down, and is connected to the shaft end of the pressing electric cylinder; the pressing holding mechanism is installed on the pressing platform and connected to the pressing platform; a pressing seat for accommodating the rotating shaft to be pressed is vertically arranged on the lower surface of the pressing platform, and a accommodating hole for accommodating the rotating shaft to be pressed is arranged at the lower end of the pressing seat, An extension hole is provided on the side wall, and the extension hole and the accommodating hole are laterally connected to each other; the press-fitting holding mechanism includes a retaining frame, a connecting rod assembly, a retaining cylinder and a positioning fork, and the retaining frame and the retaining cylinder are both installed on the lower surface of the press table, the connecting rod assembly is movably installed on the retaining frame, and the axial end of the retaining cylinder is connected to the rear end of the connecting rod assembly; the positioning fork is connected to the front end of the connecting rod assembly, and the front end of the positioning fork can be shuttled into the extension hole to abut against or away from the rotating shaft in the accommodating hole.

[0016] An operating method using the rotating shaft into the core press-fitting device comprises the following steps:

[0017] S1. The iron cores to be assembled are loaded into the barrel. The ejection drive motor drives the ejection rod to lift the iron cores in the barrel one by one to the top of the barrel. The transport device clamps and transports them to the height measurement and positioning mechanism.

[0018] S2, the height measuring and positioning mechanism performs height measurement and rotation positioning operations on the iron core, and then the transfer mechanism transfers the iron core measured by the height measuring and positioning mechanism to the laser coder for laser coding;

[0019] S3, the transport device rotates the coded iron core 180 degrees and transports it to the height measurement and positioning mechanism for scanning by a barcode scanner;

[0020] S4, after scanning the code, the iron core is transferred from the transport device to the shaft pressing mechanism, waiting for the shaft to be pressed;

[0021] S5. The rotating shaft in the rotating shaft feeding mechanism is lifted by the secondary lifting device to reach the V-shaped receiving groove. After the rotating shaft moving mechanism clamps the rotating shaft in the V-shaped receiving groove, it is rotated to a vertical state and moved to the receiving hole of the press seat. The positioning fork of the press holding mechanism positions the rotating shaft laterally, and the press electric cylinder drives the press table to press the rotating shaft into the iron core below.

[0022] S6. After the shaft is pressed, the iron core is clamped by the transport device and transported to the next station.

[0023] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical scheme that by integrating the iron core feeding mechanism, the iron core height measurement and positioning mechanism, the iron core coding mechanism, the shaft feeding mechanism, the shaft pressing mechanism and the handling device for transferring the iron core on the frame to form a shaft into the iron core pressing device, the device realizes the automatic feeding and detection of the iron core, the automatic feeding of the shaft, the secondary lifting and transfer of the shaft and the automatic pressing of the shaft into the iron core. All the processes of the shaft into the iron core are automatically operated, which saves a lot of manual labor and improves the efficiency of motor assembly.

[0024] In order to more clearly illustrate the structural features and effects of the present invention, it is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional schematic diagram of the device of the present invention;

[0026] Figure 2 It is a top view schematic diagram of the device of the present invention;

[0027] Figure 3 It is a three-dimensional schematic diagram of the iron core feeding mechanism of the present invention;

[0028] Figure 4 It is a three-dimensional schematic diagram of the iron core feeding mechanism of the present invention from another perspective;

[0029] Figure 5 It is a three-dimensional schematic diagram of the iron core height measurement and positioning mechanism and the iron core coding mechanism of the present invention;

[0030] Figure 6 It is a three-dimensional schematic diagram of the iron core height measurement and positioning mechanism and the iron core coding mechanism of the present invention from another perspective;

[0031] Figure 7 It is a schematic diagram of the height measuring component of the present invention;

[0032] Figure 8 for Figure 7 AA section diagram;

[0033] Fig. 9 It is a three-dimensional schematic diagram of the rotating shaft pressing mechanism of the present invention;

[0034] Fig.10 This is a schematic diagram of the rotating shaft pressing mechanism of the present invention from another perspective.

[0035] Fig.11 It is a three-dimensional schematic diagram of the rotating shaft material shifting mechanism of the present invention;

[0036] Fig.12 It is a schematic diagram of the iron core feeding mechanism of the present invention;

[0037] Fig.13 It is a three-dimensional schematic diagram of the iron core feeding mechanism of the present invention;

[0038] Fig.14 This is a three-dimensional schematic diagram of the iron core feeding mechanism from another perspective;

[0039] Fig.15 for Fig.12 Schematic diagram of the cross-section at BB.

[0040] Description of the accompanying drawings:

[0041] 10. Frame; 20. Iron core feeding mechanism; 21. Iron core feeding motor; 22. Turntable; 23. Cylinder; 24. Ejector rod; 25. Ejector drive motor; 30. Iron core height measurement and positioning mechanism; 31. Height measurement assembly; 311. Height measurement bracket; 312. Material bearing platform; 313. Pressing seat; 314. Height measurement cylinder; 315. GT sensor; 316. External pressure piece; 317. Internal pressure piece; 318. First spring; 319. Second spring; 32. Positioning assembly; 321. Positioning motor; 322. Support platform; 323. Laser displacement sensor; 40. Iron core coding mechanism; 41. Laser coding device; 42. Transfer mechanism; 43. Barcode scanner; 50. Rotating shaft feeding mechanism; 51. Secondary ejector device; 511. Ejector Material support; 512, first material support plate; 513, second material support plate; 514, material support cylinder; 515, material receiving block; 516, first material support trough; 517, second material support trough; 518, V-shaped material receiving trough; 52, material bin; 521, base; 522, fixed plate; 523, movable plate; 524, support plate; 525, material outlet; 53, adjustment mechanism; 531, adjustment handle; 532, adjustment screw rod; 533, linear bearing; 60, rotating shaft pressing mechanism; 61, pressing support; 62, pressing table; 621, pressing seat; 622, accommodating hole; 63, pressing electric cylinder; 64, pressing holding mechanism; 641, holding frame; 642, connecting rod assembly; 643, holding cylinder; 70, handling device; 80, rotating shaft material shifting mechanism. DETAILED DESCRIPTION

[0042] The present invention Figures 1 to 15 As shown, a rotating shaft into the iron core press-fitting device and an operating method thereof, the device comprises a frame 10, an iron core feeding mechanism 20 installed on the frame 10, an iron core height measuring and positioning mechanism 30, an iron core coding mechanism 40, a rotating shaft feeding mechanism 50, a rotating shaft press-fitting mechanism 60 and a handling device 70 for transferring the iron core, wherein:

[0043] The core feeding mechanism 20, the shaft feeding mechanism 50 and the shaft pressing mechanism 60 are connected to each other; the conveying device 70 is located between the core feeding mechanism 20, the core height measuring and positioning mechanism 30, the core coding mechanism 40 and the shaft pressing mechanism 60; and the shaft feeding mechanism 50 includes a secondary ejecting device 51, which is located beside the shaft pressing mechanism 60.

[0044] The core feeding mechanism 20 includes a core feeding motor 21, a turntable 22, a plurality of barrels 23 for holding cores, a push rod 24 and a push driving motor 25. The turntable 22 is mounted on the shaft end of the core feeding motor 21. A plurality of barrels 23 are arranged at intervals along the circumference of the turntable 22. The push driving motor 25 is mounted on the side of the turntable 22. The push rod 24 is vertically mounted on the shaft end of the push driving motor 25 and moves in the barrel 23 with the drive of the push driving motor 25 to push the core at the top of the barrel 23 upward out of the barrel 23. When the cores in one barrel 23 are taken out, the core feeding motor 21 will drive the turntable 22 to rotate and rotate another barrel 23 to the taking position.

[0045] The core height measuring and positioning mechanism 30 includes a height measuring component 31 and a positioning component 32. The height measuring component 31 includes a height measuring bracket 311, a material receiving platform 312, a clamping seat 313, a height measuring cylinder 314, a GT sensor 315, an outer pressure piece 316, an inner pressure piece 317, a first spring 318 and a second spring 319. The height measuring cylinder 314 is installed on one side of the height measuring bracket 311, and the clamping seat 313 can be slidably installed on the other side of the height measuring bracket 311 up and down, and is connected to the axial end of the height measuring cylinder 314; the material receiving platform 312 is located below the clamping seat 313; the GT sensor 315 is installed on the upper end of the clamping seat 313, and its detection needle faces the inner pressure piece 317. When the inner pressure piece 317 moves upward, it will trigger the pressure detection needle. The outer pressure piece 316 can be slidably installed up and down on the lower end of the clamping seat 313, and the first spring 318 is pressed between the upper end of the clamping seat 313 and the upper end of the outer pressure piece 316, so that the outer pressure piece 316 has a buffering effect when it presses downward on the material receiving platform 312, reducing rigid collision; the inner pressure piece 317 can be slidably installed up and down on the inner side of the outer pressure piece 316, and the second spring 319 is pressed between the outer pressure piece 316 and the inner pressure piece 317 to provide elastic force for the movement of the inner pressure piece 317.

[0046] When measuring the height of the iron core, the iron core is placed on the supporting platform 312, and the outer pressure piece 316 is pressed downward against the surface of the supporting platform 312. The lower end surface of the outer pressure piece 316 is flush with the lower end surface of the iron core, and the iron core is located on the inner side of the outer pressure piece 316; at the same time, the inner pressure piece 317 is elastically pressed against the upper end surface of the iron core under the drive of the second spring 319, and the probe of the GT sensor 315 is triggered and compressed by the inner pressure piece 317, and the distance between the upper and lower end surfaces of the iron core (the height of the iron core) will be measured by the GT sensor.

[0047] The positioning assembly 32 includes a positioning motor 321, a support platform 322 and a laser displacement sensor 323. The positioning motor 321 is installed below the support platform 322. The material receiving platform 312 is rotatably installed above the support platform 322 and connected to the shaft end of the positioning motor 321. The laser displacement sensor 323 is installed on the height measuring bracket 311 and faces the material receiving platform 312. When positioning the iron core, the positioning motor 321 drives the material receiving platform 312 to rotate, and the laser displacement sensor 323 will detect the iron core in real time. When the mark on the iron core is detected, the positioning motor 321 stops driving.

[0048] The core coding mechanism 40 includes a laser coding device 41 and a transfer mechanism 42 connected between the laser coding device 41 and the core height measurement and positioning mechanism 30. The transfer mechanism 42 is in the form of a motor combined with a screw rod and a slider, and the motor rotates to drive the screw rod to rotate, so that the slider moves.

[0049] The rotating shaft feeding mechanism 50 includes a material bin 52, an adjusting mechanism 53 for adjusting the width of the material bin 52 (to accommodate the feeding of rotating shafts of different lengths), and a secondary feeding device 51 for lifting the rotating shafts out of the material bin 52 for feeding. The adjusting mechanism 53 is installed on the material bin 52; the secondary feeding device 51 is connected to the discharge port 525 of the material bin 52. The material bin 52 includes a base 521, a fixed plate 522 and a movable plate 523. The fixed plate 522 is fixedly installed on the base 521, and the movable plate 523 can be installed on the base 521 in a transversely movable manner. A material bin 52 for accommodating multiple rotating shafts is formed between the fixed plate 522 and the movable plate 523. The adjusting mechanism 53 includes an adjusting handle 531, an adjusting screw 532 and a linear bearing 533. One end of the adjusting screw 532 is rotatably matched with the fixed plate 522, and the other end is connected to the adjusting handle 531; the movable plate 523 is threadedly matched with the adjusting screw 532, and the linear bearing 533 is transversely arranged on the base 521, and the lower end of the movable plate 523 is matched with the linear bearing 533; when the adjusting handle 531 is rotated, the adjusting screw 532 rotates, and the movable plate 523 moves transversely on the base 521 with the assistance of the linear bearing 533, and the width of the silo 52 is changed to accommodate rotating shafts of different lengths.

[0050] The silo 52 has a support plate 524 inclined toward the secondary ejecting device 51. The rotating shaft in the silo 52 rolls on the support plate 524 to the discharge port 525 under the action of gravity. The secondary ejecting device 51 includes an ejecting bracket 511, a first ejecting plate 512, a second ejecting plate 513 and an ejecting cylinder 514. The ejecting bracket 511 is hollow inside, and a receiving block 515 is provided in the ejecting bracket 511. A first ejecting trough 516 for the first ejecting plate 512 to be lifted and lowered is formed between the receiving block 515 and the left inner wall of the ejecting bracket 511. The lower end of the first ejecting trough 516 is connected to the discharge port 525 of the silo 52. The first ejecting plate 512 slides vertically in the first ejecting trough 516. A second ejecting trough 516 for the second ejecting plate 513 to be lifted and lowered is formed between the receiving block 515 and the right inner wall of the ejecting bracket 511. 7. The second ejector plate 513 slides vertically in the second ejector trough 517; the ejector cylinder 514 is installed at the lower end of the ejector bracket 511, and the lower ends of the first ejector plate 512 and the second ejector plate 513 are connected to the axial end of the ejector cylinder 514; the upper surface of the receiving block 515 extends downward from the first ejector trough 516 to the second ejector trough 517, so that the rotating shaft automatically rolls from the first ejector trough 516 to the second ejector trough 517; and the top ends of the first ejector plate 512 and the second ejector plate 513 are both inclined, and the inclination direction is consistent with the inclination direction of the upper surface of the receiving block 515, so that the rotating shaft automatically rolls and transfers from left to right after jacking. A V-shaped receiving trough 518 is provided on the outer side of the ejector bracket 511 near the top of the second ejector trough 517, which is used to receive the rotating shaft rolled out of the second ejector trough 517 for material removal. When the rotating shaft is loaded, it first rolls down from the material bin 52 to the discharge port and arrives at the first loading trough 516. The loading cylinder 514 drives the first loading plate 512 and the second loading plate 513 to move upward at the same time. The rotating shaft rolls down from the first loading trough 516 to the second fixed material trough through the material receiving block 515. The second loading plate 513 lifts it up and rolls it down to the V-shaped receiving trough 518 to wait for material collection. The simultaneous lifting and lowering of the first loading plate 512 and the second loading plate 513 synchronously completes the operation of the rotating shaft transferring from the first loading trough 516 to the second loading trough 517 and from the second loading trough 517 to the V-shaped receiving trough 518. The loading speed of the rotating shaft is fast, and only one loading cylinder 514 is needed to drive it, which reduces components and saves energy consumption. At the same time, the vertical stroke of the rotating shaft is shortened, and a loading cylinder 514 with a smaller stroke can be selected, which saves the vertical space occupied by the equipment and is easy to install.

[0051] The rotating shaft pressing mechanism 60 includes a pressing bracket 61, a pressing platform 62, a pressing electric cylinder 63 and a pressing holding mechanism 64. The pressing electric cylinder 63 is vertically installed on the top of the pressing bracket 61. The pressing platform 62 can be installed on the pressing bracket 61 in an up-and-down manner and is connected to the axial end of the pressing electric cylinder 63. The pressing holding mechanism 64 is installed on the pressing platform 62 and is connected to the pressing platform 62. A pressing seat 621 for accommodating the rotating shaft to be pressed is vertically arranged on the lower surface of the pressing platform 62. The lower end of the pressing seat 621 is provided with a receiving hole 622 for accommodating the rotating shaft to be pressed. A protruding hole is provided on the side wall of the pressing seat 621. The protruding hole and the receiving hole 622 are provided. 22 are laterally connected to each other; the press-fitting holding mechanism 64 includes a holder 641, a connecting rod assembly 642 (two connecting rods are hinged to each other), a holding cylinder 643, a holder 641 and a positioning fork (Y-shaped structure, not shown in the figure), the holder 641 and the holding cylinder 643 are both installed on the lower surface of the press table 62, the connecting rod assembly 642 is movably installed on the holder 641, and the axial end of the holding cylinder 643 is connected to the rear end of the connecting rod assembly 642; the positioning fork is connected to the front end of the connecting rod assembly 642, and the front end of the positioning fork can be shuttled into the extension hole (not shown in the figure) to abut against or away from the rotating shaft in the accommodating hole 622. When the rotating shaft is pressed into the iron core, the pressing electric cylinder 63 drives the pressing platform 62 to move downward to press the rotating shaft into the iron core; during this process, the cylinder 643 is kept to drive the connecting rod assembly 642 so that the positioning fork can laterally support the rotating shaft to prevent the rotating shaft from tilting during the pressing process and improve the installation accuracy of the rotating shaft.

[0052] An operating method applied to the rotating shaft into the core press-fitting device comprises the following steps:

[0053] S1. The iron cores to be assembled are loaded into the barrel 23. The ejection drive motor 25 drives the ejection rod 24 to lift the iron cores in the barrel 23 one by one, so that they reach the top of the barrel 23. The transport device 70 clamps and transports them to the height measurement and positioning mechanism.

[0054] S2, the height measuring and positioning mechanism performs height measurement and rotation positioning operations on the iron core, and then the transfer mechanism 42 transfers the iron core measured by the height measuring and positioning mechanism to the laser coder 41 for laser coding;

[0055] S3, the transport device 70 rotates the coded iron core 180 degrees and transports it to the height measurement and positioning mechanism for the barcode scanning gun 43 to perform the barcode scanning operation;

[0056] S4, the iron core after code scanning is transferred from the transport device 70 to the shaft pressing mechanism 60, waiting for the shaft to be pressed;

[0057] S5, the rotating shaft in the rotating shaft feeding mechanism 50 is lifted by the secondary lifting device 51 to reach the V-shaped receiving groove 518, the rotating shaft material transfer mechanism 80 clamps the rotating shaft in the V-shaped receiving groove 518, rotates it to a vertical state, and transfers it to the receiving hole 622 of the pressing seat 621; the positioning fork of the press-fitting holding mechanism 64 positions the rotating shaft laterally, and the press-fitting electric cylinder 63 drives the pressing table 62 to press the rotating shaft into the iron core below;

[0058] S6. The iron core after the shaft is pressed is clamped by the transport device 70 and transported to the next station.

[0059] The design focus of the present invention is that the core feeding mechanism, the core height measurement and positioning mechanism, the core coding mechanism, the shaft feeding mechanism, the shaft pressing mechanism and the handling device for transferring the core are integrated on the frame to form a shaft-to-core pressing device, which realizes the automatic feeding and detection of the core, the automatic feeding of the shaft, the secondary lifting and transfer of the shaft and the automatic pressing of the shaft on the core. All the processes of the shaft-to-core process are automatically operated, which saves a lot of manual labor and improves the efficiency of motor assembly.

[0060] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A device for pressing a rotating shaft into an iron core, characterized in that: The invention comprises a frame, an iron core feeding mechanism installed on the frame, an iron core height measuring and positioning mechanism, an iron core coding mechanism, a rotating shaft feeding mechanism, a rotating shaft pressing mechanism and a handling device for transferring the iron core, wherein the iron core feeding mechanism, the rotating shaft feeding mechanism and the rotating shaft pressing mechanism are connected to each other; the handling device is located between the iron core feeding mechanism, the iron core height measuring and positioning mechanism, the iron core coding mechanism and the rotating shaft pressing mechanism; and the rotating shaft feeding mechanism comprises a secondary ejecting device, which is located beside the rotating shaft pressing mechanism; The rotating shaft feeding mechanism includes a silo and an adjusting mechanism for adjusting the width of the silo, and the adjusting mechanism is installed on the silo; the secondary feeding device is connected to the discharge port of the silo; The secondary lifting device includes a lifting bracket, a first lifting plate, a second lifting plate and a lifting cylinder, the lifting bracket is hollow inside, and a supporting block is arranged in the lifting bracket, and a first lifting groove for lifting the first lifting plate is formed between the supporting block and the left inner wall of the lifting bracket, and the lower end of the first lifting groove is communicated with the discharge port of the material bin; the first lifting plate slides vertically in the first lifting groove; a second lifting groove for lifting the second lifting plate is formed between the supporting block and the right inner wall of the lifting bracket, and the second lifting plate slides vertically in the second lifting groove; the lifting cylinder is installed at the lower end of the lifting bracket, and the lower ends of the first lifting plate and the second lifting plate are connected to the axial end of the lifting cylinder; the upper surface of the supporting block extends downwardly from the first lifting groove to the direction of the second lifting groove; a V-shaped material receiving groove is arranged on the outer side of the lifting bracket near the top of the second lifting groove; The rotating shaft press-fitting mechanism includes a press platform and a press-fitting holding mechanism. A press seat for accommodating the rotating shaft to be press-fitted is vertically arranged on the lower surface of the press platform, and an accommodating hole for accommodating the rotating shaft to be press-fitted is arranged at the lower end of the press seat; the press-fitting holding mechanism includes a positioning fork.

2. The rotating shaft into the core press-fitting device according to claim 1, characterized in that: The iron core feeding mechanism includes an iron core feeding motor, a turntable, a plurality of barrels for containing iron cores, a ejecting rod and an ejecting driving motor. The turntable is installed on the shaft end of the iron core feeding motor. A plurality of barrels are arranged at intervals along the circumference of the turntable. The ejecting driving motor is installed on the side of the turntable. The ejecting rod is vertically installed on the shaft end of the ejecting driving motor and moves in the barrel with the drive of the ejecting driving motor to eject the iron core at the top of the barrel upward out of the outside of the barrel.

3. The rotating shaft into the core press-fitting device according to claim 1, characterized in that: The core height measurement and positioning mechanism includes a height measurement component and a positioning component. The height measurement component includes a height measurement bracket, a material receiving platform, a clamping seat, a height measurement cylinder, a GT sensor, an external pressure piece, an internal pressure piece, a first spring and a second spring. The height measurement cylinder is installed on one side of the height measurement bracket, and the clamping seat can be slidably installed on the other side of the height measurement bracket and is connected to the shaft end of the height measurement cylinder; the material receiving platform is located below the clamping seat; the GT sensor is installed on the upper end of the clamping seat, and the external pressure piece can be slidably installed below the clamping seat. end, the first spring abuts between the upper end of the clamping seat and the upper end of the outer pressure piece; the inner pressure piece can be slidably installed up and down on the inner side of the outer pressure piece, and the second spring abuts between the outer pressure piece and the inner pressure piece; the positioning assembly includes a positioning motor, a support platform and a laser displacement sensor, the positioning motor is installed below the support platform, the material receiving platform can be rotatably installed above the support platform, and is connected to the shaft end of the positioning motor; the laser displacement sensor is installed on the height measuring bracket and faces the material receiving platform.

4. The rotating shaft into the core press-fitting device according to claim 1, characterized in that: The iron core coding mechanism comprises a laser coding device and a transfer mechanism connected between the laser coding device and the iron core height measuring and positioning mechanism.

5. The rotating shaft into the core press-fitting device according to claim 1, characterized in that: The silo includes a base, a fixed plate and a movable plate, the fixed plate is fixedly mounted on the base, the movable plate can be laterally movably mounted on the base, and a silo for accommodating multiple rotating shafts is formed between the fixed plate and the movable plate; the adjustment mechanism includes an adjustment handle, an adjustment screw and a linear bearing, one end of the adjustment screw can be rotatably matched with the fixed plate, and the other end is connected to the adjustment handle; and the movable plate is threadedly matched with the adjustment screw, and the linear bearing is laterally arranged on the base, and the lower end of the movable plate is matched with the linear bearing; when the adjustment handle is turned, the adjustment screw rotates, and the movable plate moves laterally on the base with the assistance of the linear bearing, and the width of the silo is changed.

6. The rotating shaft into the core press-fitting device according to claim 1, characterized in that: The silo is provided with a support plate inclined toward the secondary ejecting device, and the rotating shaft in the silo rolls on the support plate to the discharge port under the action of gravity.

7. The rotating shaft into the core press-fitting device according to claim 1, characterized in that: The rotating shaft pressing mechanism also includes a pressing bracket and a pressing electric cylinder, the pressing electric cylinder is vertically installed on the top of the pressing bracket, the pressing platform can be movably installed on the pressing bracket up and down, and is connected to the axial end of the pressing electric cylinder; the pressing holding mechanism is installed on the pressing platform and is connected to the pressing platform; an extension hole is provided on the side wall of the pressing seat, and the extension hole and the accommodating hole are laterally connected to each other; the pressing holding mechanism also includes a retaining frame, a connecting rod assembly and a retaining cylinder, the retaining frame and the retaining cylinder are both installed on the lower surface of the pressing platform, the connecting rod assembly is movably installed on the retaining frame, and the axial end of the retaining cylinder is connected to the rear end of the connecting rod assembly; the positioning fork is connected to the front end of the connecting rod assembly, and the front end of the positioning fork can be shuttled into the extension hole to abut against or away from the rotating shaft in the accommodating hole.

8. An operating method for the shaft-to-core press-fitting device according to any one of claims 1 to 7, characterized in that: The steps include: S1. The iron cores to be assembled are loaded into the barrel. The ejection drive motor drives the ejection rod to lift the iron cores in the barrel one by one to the top of the barrel. The transport device clamps and transports them to the height measurement and positioning mechanism. S2, the height measuring and positioning mechanism performs height measurement and rotation positioning operations on the iron core, and then the transfer mechanism transfers the iron core measured by the height measuring and positioning mechanism to the laser coder for laser coding; S3, the transport device rotates the coded iron core 180 degrees and transports it to the height measurement and positioning mechanism for scanning by a barcode scanner; S4, after scanning the code, the iron core is transferred from the transport device to the shaft pressing mechanism, waiting for the shaft to be pressed; S5. The rotating shaft in the rotating shaft feeding mechanism is lifted by the secondary lifting device to reach the V-shaped receiving groove. After the rotating shaft moving mechanism clamps the rotating shaft in the V-shaped receiving groove, it is rotated to a vertical state and moved to the receiving hole of the press seat. The positioning fork of the press holding mechanism positions the rotating shaft laterally, and the press electric cylinder drives the press table to press the rotating shaft into the iron core below. S6. After the shaft is pressed, the iron core is clamped by the transport device and transported to the next station.

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