A feeding mechanism for motor rotor core installation

Abstract

This utility model discloses a feeding mechanism for installing motor rotor cores, belonging to the field of new energy motor technology. It includes a vertically arranged straight cylinder above a slider. The slide rail has a front end and a rear end. A servo cylinder is provided at the rear end of the slider. The servo cylinder can drive the slider to move back and forth under the restriction of the slide rail and reciprocate between the front end and the rear end of the circular hole. The lower surface of the straight cylinder is in contact with the upper surface of the mounting slider. One side of the straight cylinder has a vertically penetrating C-shaped opening structure. The inner diameter of the straight cylinder is the same as the outer diameter of the rotor core. It can accommodate multiple rotor cores arranged in a straight line. The straight cylinder and the circular hole of the mounting slider at the rear end are vertically aligned.

Description

Technical Field

[0001] This utility model relates to the field of new energy motor technology, and in particular to a feeding mechanism for mounting the rotor core of a motor. Background Technology

[0002] Electric motors are widely used in new energy technologies. The rotor, as the core component of the motor, is usually composed of a shaft, a rotor core, and other accessories. The shaft is usually installed at the center of the shaft core through structural connection or interference fit to achieve an integrated structure and realize the motor function of transmission and rotation.

[0003] With the development of motors towards greater precision and miniaturization, motor structures are becoming increasingly sophisticated, requiring more precise and reliable installation equipment during motor installation. Summary of the Invention

[0004] The purpose of this utility model is to provide a feeding mechanism for installing the rotor core of an electric motor, so as to improve the accuracy and efficiency of shaft installation.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: A feeding mechanism for mounting an electric motor rotor core includes a vertically arranged straight cylinder positioned above a slider. A front end position and a rear end position are provided on the slide rail. A servo cylinder is provided at the rear end of the slider. The servo cylinder can drive the slider to move back and forth under the constraint of the slide rail and make the circular hole reciprocate between the front end position and the rear end position. The lower surface of the straight cylinder is in contact with the upper surface of the mounting slider. One side of the straight cylinder has a C-shaped opening structure that runs vertically through the cylinder. The inner diameter of the straight cylinder is the same as the outer diameter of the rotor core. The cylinder can accommodate multiple rotor cores arranged in a straight line. The straight cylinder and the circular hole of the mounting slider at the rear end are vertically aligned.

[0006] Furthermore, the straight cylinder is integrally installed with the slide rail via a mounting component.

[0007] Furthermore, a limiting component is provided above the straight cylinder. The limiting component includes a horizontally arranged crossbar and two straight bars. The crossbar has a rectangular cross-section and is arranged directly above the straight cylinder. In the vertical direction, its center line is in the same plane as the center line of the straight cylinder.

[0008] Furthermore, the front end of the crossbar has an open, through-and-through straight groove, which is located at the center line of the crossbar.

[0009] Furthermore, the upper end of the straight rod has a head, and the straight rod can be arranged inside the straight groove. Under the action of the head, the straight rod can be suspended on the upper edge of the straight groove. The lower end of the straight rod is distributed inside the straight cylinder, and the lowest end of the straight rod will not contact the upper surface of the slider.

[0010] Furthermore, the rotor core is provided with alignment holes, into which the straight rod can be inserted.

[0011] Furthermore, the alignment holes on the rotor core are arranged in a central row, and the two straight rods can be inserted into the alignment holes one after the other, thus restricting the rotation of the rotor core inside the straight cylinder.

[0012] Furthermore, a limiting groove is arranged at the rear end of the crossbar, and the straight rod can move back and forth under the restriction of the limiting groove.

[0013] Furthermore, the opening at the front end of the crossbar has a beveled guide structure.

[0014] Furthermore, a handle is provided on the side wall at the front end of the crossbar. When the crossbar moves backward, the handle disengages from the limiting groove and ensures that when the crossbar is in the rear end position, the front end of the crossbar does not protrude beyond the alignment point of the inner wall of the straight cylinder.

[0015] Compared with existing technologies, this solution has the following advantages: This solution provides a feeding mechanism for installing motor rotor cores. By arranging the stacked rotor cores on one side of the extrusion mechanism, the feeding efficiency of the rotor cores during installation can be greatly improved, reducing the intensity of manual labor. At the same time, the rotor cores are limited by straight cylinders and by the limiting of two straight rods, which can ensure the precise arrangement of the rotor cores and ensure that the phase of all rotor cores is consistent, so that the finished motor has better consistency. This solution employs a limiting structure that combines horizontal and vertical bars. The horizontal bars can be moved forward and backward, which does not affect the overall feeding of the rotor core and can also achieve precise positioning. At the same time, the vertical bars connect multiple rotor cores in series, which can facilitate preparation work and greatly improve the efficiency of rotor core feeding, storage and transportation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall installation structure of a preferred embodiment.

[0017] Figure 2 This is a schematic diagram of the structure when the slider is in the rear position.

[0018] Figure 3 This is a schematic diagram of the slider's structure.

[0019] Figure 4 This is a schematic diagram of the overall rotor structure.

[0020] Figure 5 This is a schematic diagram showing the disassembled structure of the rotor assembly.

[0021] Figure 6 This is a structural schematic diagram of the rotor core pre-assembly.

[0022] Figure 7 This is a schematic diagram of the feeding mechanism.

[0023] Figure 8 This is a schematic diagram of the unloaded structure of the feeding mechanism.

[0024] Figure 9 This is a schematic diagram of the cross-section of the support block. Detailed Implementation

[0025] refer to Figures 1 to 9 This utility model is used to manufacture a rotor shaft for a new energy motor. The motor rotor of this solution includes a rotor core 10 and a shaft 11. A mounting hole is provided at the center line of the rotor core 10. A mounting ring 12 is arranged in the mounting hole. The mounting ring 12 is used to install the shaft 11. The mounting ring 12 can be a plastic part with a certain elasticity. The shaft 11 is squeezed into the mounting ring 12 by an interference fit, and the three are tightly installed together by the interference fit. To improve installation stability, the mounting ring 12 is usually placed a little beyond the rotor core 10 (typically about 3 mm beyond both ends of this type of small motor) to improve the strength and stability of the installation structure. Alignment holes 13 are arranged on the rotor core 10 for operations such as heat dissipation, alignment or weight reduction. In this solution, the rotor core 10 is arranged through the alignment holes 13 to make it consistent.

[0026] A feeding mechanism for mounting a motor rotor core includes a horizontal slide rail 20 and a slider 21 arranged in the slide rail. The slider 21 has a long strip structure and a circular hole 22 at the front end of the slider 21. The diameter of the circular hole 22 is the same as the outer diameter of the rotor core 10, and the height of the circular hole 22 is also the same as the height of the rotor core 10. Therefore, the rotor core 10 can be just accommodated in it. When the rotor core is in the circular hole, the upper surface of the rotor core 10 is flush with the upper surface of the slider 21. The slide rail 20 has a front end position and a rear end position. The rear end of the slider 21 is equipped with a servo cylinder 23. The servo cylinder 23 can drive the slider 21 to move back and forth under the restriction of the slide rail 20, and make the circular hole 22 reciprocate between the front end position and the rear end position. To better transport the rotor core 10, the upper surface of the slider 21 has a racetrack-shaped groove 25 connecting the front and rear ends. Therefore, the lower surface of the rotor core 10 in the preparatory position will always be inside the groove 25 when the slider 21 moves back and forth. In order to make the transport smoother and reduce friction, the inner wall of the groove 25 is provided with a wear-resistant coating, which can be a Teflon coating. In some embodiments, the inside of the groove 25 is provided with a lubrication structure, that is, a thin film of lubricating grease is arranged.

[0027] A rotor core feeding mechanism 3 is provided directly above the rear end of the slide rail 20. A pressing mechanism 4 that can move up and down is provided at the front end of the slide rail 20. A support block 5 is provided below the front end. The support block 5 has multiple stepped structures with the center aligned and recessed, which are used to respectively accommodate the mounting ring 12 and the rotating shaft 11.

[0028] The rotor core feeding mechanism 3 includes a vertically arranged straight cylinder 31. The lower surface of the straight cylinder 31 is in contact with the upper surface of the slider 20, or more specifically, it is in contact with the outer edge of the groove 25. One side of the straight cylinder 31 has a C-shaped opening 32 that runs vertically through it. This opening 32 is used to observe the number of rotor cores 10 inside and other corresponding operations.

[0029] The inner diameter of the straight cylinder 31 is the same as the outer diameter of the rotor core 10. It can accommodate multiple rotor cores 10 arranged in a straight line. The straight cylinder 31 and the circular hole 22 of the slider 21 located at the rear end are aligned vertically. The straight cylinder 31 is installed integrally with the slide rail through the mounting parts.

[0030] A limiting component is provided above the straight cylinder 31. The limiting component includes a horizontally arranged crossbar 33 and two straight bars 34. The crossbar 34 has a rectangular cross-section. The crossbar 33 is arranged directly above the straight cylinder 31. In the vertical direction, its center line is on the same plane as the center line of the straight cylinder 31.

[0031] The front end of the crossbar 33 has an open, through-and-through straight groove 35, which is located at the center line of the crossbar 33. The upper end of the straight rod 34 has an end cap 36, which allows the straight rod 34 to fit inside the straight groove 35. Under the action of the end cap 36, the straight rod 34 can be suspended from the upper edge of the straight groove. The lower ends of the straight rod 34 are distributed inside the straight cylinder 31, but their lowest ends will not contact the upper surface of the slider 21. Specifically, the straight rod 34 can be inserted into the alignment hole 13. The alignment holes 13 on the rotor core 10 are arranged in a central row. The two straight rods 34 can be inserted into the alignment holes 13 one after the other to restrict the rotation of the rotor core 10 inside the straight cylinder 31, thereby ensuring that all rotor cores 10 are in an aligned state.

[0032] In some embodiments, multiple rotor cores 10 with straight rods 34 can be prepared as preparatory parts, thereby improving the feeding efficiency.

[0033] The rear end of the crossbar 33 is provided with a rectangular opening limiting groove 37, into which the crossbar 33 can be inserted and can move back and forth under the restriction of the limiting groove 37. The limiting groove 33 is fixedly installed to the outer wall of the straight cylinder 31 through a connector.

[0034] The opening at the front end of the crossbar 33 has a beveled guide structure to improve the ease of entry of the straight bar 34. A handle 38 is provided on the side wall at the front end of the crossbar 33. The handle 38 can restrict the crossbar 33 from disengaging from the limiting groove 37 when it moves backward, and ensure that the front end of the crossbar 33 does not protrude from the inner wall alignment of the straight cylinder 31 when the crossbar 33 is in the rear end position.

[0035] The main body of the extrusion mechanism 4 is a servo cylinder structure that moves up and down. It performs the extrusion installation operation on the rotating shaft 11 through the push rod 41. In order to reduce potential risks, a human infrared sensor is provided at the push rod 41 to detect human bodies and prevent accidents. The support block 5 is connected to the frame through the mounting structure. The top of the support block is aligned with the circular hole 22 at the front end. The top and side walls of the support block 5 are installed separately from the slide rail 20.

[0036] The support block 5 includes a first step 51, which is annular and is used to limit the mounting ring 12 and cooperates with the bottom of the installed mounting ring 12. The support block 5 has a second step 52 inside, which is used to limit the rotating shaft 11 and cooperates with the bottom of the installed rotating shaft 11.

[0037] In actual operation, the operator inserts the prepared rotor core 10 pieces, each with a straight rod 34, into the straight cylinder 31. Then, the operator pulls out the crossbar 33 from the rear end, suspending the two straight rods 34 in the straight grooves 35 of the crossbar 33. Thus, all rotor cores 10 are aligned. The servo cylinder 23 drives the slider 21 to the rear end position, allowing the lowest rotor core 10 to fall freely into the circular hole 22. Then, the servo cylinder 23 drives the slider 21 and rotor core 10 to the front end position. The operator then prepares to place the rotating shaft 11 and mounting ring 12 at the center of the rotor core 10. Finally, the push rod 4... The downward motion contacts the top of the rotating shaft 11. Under the action of friction and compression, it drives the mounting ring 12 and the rotating shaft 11 to move downward. When the mounting ring 12 moves downward and contacts the first step 51, it is restricted from moving downward. At this time, the rotating shaft 11 continues to move downward until its lower end contacts the second step 52. Then the push rod 41 moves upward and returns to its original position. The operator takes out the processed rotor from the inside of the round hole 22. Then the servo cylinder 23 drives the slider 21 and the empty round hole 22 to return to the front end position, thus completing one cycle operation. This can be repeated to continuously complete the installation operation.

[0038] In summary, this solution provides a feeding mechanism for installing motor rotor cores. By arranging the stacked rotor cores on one side of the extrusion mechanism, the feeding efficiency of the rotor cores during installation can be greatly improved, reducing the intensity of manual labor. At the same time, the rotor cores are limited by straight cylinders, and the precise arrangement of the rotor cores by the limiting of two straight rods can ensure that all rotor cores are in phase, resulting in better consistency of the finished motor. This solution uses a limiting structure with crossbars and straight bars. The crossbars can move back and forth, which does not affect the overall feeding of the rotor core and can also achieve precise positioning. At the same time, the straight bars can connect multiple rotor cores in series to prepare for the operation, which greatly improves the efficiency of feeding, storing and conveying rotor cores. This solution adopts a structure in which the slide rail, support block, and extrusion mechanism are installed separately. This can reduce the impact force on the slide rail and slider during extrusion operation and reduce deformation during long-term operation, thus greatly ensuring the stability of the operation.

Claims

1. A feeding mechanism for mounting an electric motor rotor core, characterized in that: It includes a vertically arranged straight cylinder above the slider. The slide rail has a front end position and a rear end position. The rear end of the slider is equipped with a servo cylinder. The servo cylinder can drive the slider to move back and forth under the restriction of the slide rail and make the circular hole reciprocate between the front end position and the rear end position. The lower surface of the straight cylinder is in contact with the upper surface of the mounting slider. One side of the straight cylinder has a C-shaped opening structure that runs vertically through the cylinder. The inner diameter of the straight cylinder is the same as the outer diameter of the rotor core. The cylinder can accommodate multiple rotor cores arranged in a straight line. The straight cylinder and the circular hole of the mounting slider at the rear end are vertically aligned.

2. The feeding mechanism for mounting a motor rotor core according to claim 1, characterized in that: The straight cylinder is integrally installed with the slide rail of the slider via an mounting component.

3. The feeding mechanism for mounting a motor rotor core according to claim 1, characterized in that: A limiting component is provided above the straight cylinder. The limiting component includes a horizontally arranged crossbar and two straight bars. The crossbar has a rectangular cross-section and is arranged directly above the straight cylinder. In the vertical direction, its center line is in the same plane as the center line of the straight cylinder.

4. The feeding mechanism for mounting a motor rotor core according to claim 3, characterized in that: The front end of the crossbar has an open, through-and-through straight groove, which is located at the center line of the crossbar.

5. The feeding mechanism for mounting a motor rotor core according to claim 4, characterized in that: The upper end of the straight rod has a head, and the straight rod can be just arranged inside the straight groove. Under the action of the head, the straight rod can be suspended on the upper edge of the straight groove. The lower end of the straight rod is distributed inside the straight cylinder, and the lowest end of the straight rod will not contact the upper surface of the slider.

6. The feeding mechanism for mounting a motor rotor core according to claim 3, characterized in that: The rotor core is provided with an alignment hole, into which the straight rod can be inserted.

7. The feeding mechanism for mounting a motor rotor core according to claim 6, characterized in that: The alignment holes on the rotor core are arranged in a central row, and the two straight rods can be inserted into the alignment holes one after the other, thus restricting the rotation of the rotor core inside the straight cylinder.

8. The feeding mechanism for mounting a motor rotor core according to claim 3, characterized in that: The rear end of the crossbar is provided with a limiting groove, and the straight bar can move back and forth under the restriction of the limiting groove.

9. The feeding mechanism for mounting a motor rotor core according to claim 3, characterized in that: The opening at the front end of the crossbar has a sloping guide structure.

10. The feeding mechanism for mounting a motor rotor core according to claim 3, characterized in that: A handle is provided on the side wall at the front end of the crossbar. When the crossbar moves backward, the handle disengages from the limiting groove and ensures that the front end of the crossbar does not protrude beyond the alignment point of the inner wall of the straight cylinder when the crossbar is in the rear end position.

Images