Permanent magnet rotor iron core press fitting tool

Abstract

The utility model discloses a permanent magnet rotor iron core press fitting tool. The permanent magnet rotor iron core press fitting tool comprises a base; a first station is arranged at one end of the base, and a second station is arranged at the other end of the base. The first station is used for installing a rotor upper pressing plate. The second station is used for installing a rotor magnetic steel groove end plate and a lower pressing plate. An overturning assembly is arranged between the first station and the second station. According to the utility model, the arranged overturning assembly can realize the automatic transfer of the rotor iron core between the stations, reduces the manual carrying and repeated positioning time, and improves the production efficiency in the assembling process of the permanent magnet rotor.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a permanent magnet rotor core pressing tool. Background Technology

[0002] The permanent magnet rotor employs a conventional press-fitting process, where the rotor shaft, rotor laminations, upper and lower rotor pressure plates, rotor magnet slot baffles, screws, nuts, and bolts are all assembled and then locked in a pressure-holding state (the upper and lower flanges of the rotor are locked in pressure by screws). During production, it was found that this assembly method, because the magnet slot baffles are composed of dozens of identical parts, requires a considerable amount of time for manual assembly, resulting in low work efficiency. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a permanent magnet rotor core pressing tool to improve the production efficiency in the assembly process of permanent magnet rotors.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a permanent magnet rotor core pressing fixture, including a base; a station one is provided at one end of the base and a station two is provided at the other end; the station one is used to install the upper pressure plate of the rotor; the station two is used to install the rotor magnet slot end plate and the lower pressure plate; a flipping assembly is provided between the station one and the station two.

[0005] Furthermore, the flipping assembly includes a gantry frame; both ends of the gantry frame move along guide rails on the base; the gantry frame is driven to move laterally and reciprocally by a lateral movement assembly; lifting bases are symmetrically arranged on the two side columns of the gantry frame; the lifting bases are connected to the columns through lifting modules; gripper one or gripper two is respectively installed on the two side lifting bases; the gripper one or gripper two is a rotating gripper; the gripper one and gripper two are connected to the lifting base through a push-pull assembly.

[0006] Furthermore, the lifting component is a longitudinal lateral movement module.

[0007] Furthermore, the push-pull assembly is a telescopic cylinder.

[0008] Furthermore, the first and second grippers have the same structure, including an arc-shaped gripper arm and a polyurethane buffer layer disposed on the inner layer of the arc-shaped gripper arm.

[0009] Furthermore, a silicone rubber adsorption membrane is also provided on the polyurethane buffer layer; several suction cups are provided on the silicone rubber adsorption membrane; the silicone rubber adsorption membrane is connected to a vacuum adsorption pipeline.

[0010] Furthermore, an upper pressure plate pressing assembly and a lower pressure plate pressing assembly are respectively provided on one side of the first and second workstations; the upper pressure plate pressing assembly and the lower pressure plate pressing assembly have the same structure, including a rotating arm, a vacuum suction cup and a slip ring rotating shaft; the vacuum suction cup is fixedly installed at both ends of the rotating arm; the top of the slip ring rotating shaft is fixedly connected to the center of the rotating arm; the slip ring rotating shaft is fixedly installed on the lifting assembly.

[0011] The beneficial effects of this utility model are as follows:

[0012] The flipping component of this invention enables automated transfer of the rotor core between workstations, reducing manual handling and repetitive positioning time.

[0013] This utility model utilizes the rotor core shaft stop, the upper rotor pressure plate and the shaft to be bolted together, and after the flipping assembly is flipped, the lower rotor pressure plate and the rotor magnet slot are assembled and locked with nuts. The entire pressing process can save about 0.5 hours of production time. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the original rotor press-fitting.

[0016] Figure 2 A schematic diagram showing the pressure retention mechanism using the bolts between the rotor upper pressure plate and the shaft, and the rotor shaft stop.

[0017] Figure 3 This is a schematic diagram of the rotor core flipping assembly.

[0018] Figure 4 This is a side view of the tooling.

[0019] Figure 5 This is a schematic diagram of the flip component.

[0020] Figure 6 This is a schematic diagram of the gripper. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below through specific embodiments. Example 1

[0022] refer to Figure 1 and Figure 2 This utility model provides a permanent magnet rotor core pressing fixture, which includes a base 1; a station 2 is provided at one end of the base 1 and a station 3 is provided at the other end; the station 2 is used to install the upper pressure plate 4 of the rotor; the station 3 is used to install the rotor magnet slot end plate 5 and the lower pressure plate 6; a flipping assembly 7 is provided between the station 2 and the station 3.

[0023] In this embodiment, a screw is provided on the lower pressure plate 6, and a connecting seat connected to the shaft 01 is provided on one side of the lower pressure plate. A stepped structure is formed between the connecting seat and the lower pressure plate 6, which facilitates positioning. The screw on the lower pressure plate 6 matches the groove shape on the magnet slot end plate and the punch, and the screw runs through the entire length. The lower pressure plate 6 is provided with positioning holes for matching the screw.

[0024] The flipping assembly in this embodiment includes a gantry frame 71; both ends of the gantry frame 71 move along guide rails on the base 1; the gantry frame 71 is driven to move laterally and reciprocally by a lateral movement assembly. The gantry frame 71 moves laterally along the guide rails of the base 1, and the height of the grippers is precisely controlled by a lifting cylinder to ensure the transfer path and positioning accuracy.

[0025] The lateral reciprocating movement is achieved by a gear and rack sliding sleeve, and both ends of the gantry frame 71 are connected to the sliding blocks of the gear and rack sliding sleeve.

[0026] In this embodiment, lifting bases 72 are symmetrically arranged on the two columns of the gantry frame 71; the lifting bases 72 are connected to the columns through lifting modules; grippers 73 or grippers 74 are respectively installed on the two lifting bases 72; the grippers 73 or grippers 74 are rotating grippers; the grippers 73 and grippers 74 are connected to the lifting bases 72 through push-pull components 75.

[0027] The lifting assembly in this embodiment is a longitudinal lateral movement module. The push-pull assembly in this embodiment is a telescopic cylinder.

[0028] The push-pull assembly in this embodiment adjusts the gripper spacing to accommodate rotor cores of different diameters. Grippers 73 and 74 are 180° rotating grippers, enabling a flipping function.

[0029] In this embodiment, gripper 73 and gripper 74 have the same structure, including an arc-shaped gripper arm 731 and a polyurethane buffer layer 732 disposed inside the arc-shaped gripper arm 731. The arc-shaped gripper arm 731 is mounted on a rotating seat, which is mounted on a fixed plate via a rotary cylinder. The fixed plate is connected to the push-pull assembly.

[0030] In this embodiment, a silicone rubber adsorption membrane 733 is also provided on the polyurethane buffer layer 732; a plurality of suction cups 734 are provided on the silicone rubber adsorption membrane; the silicone rubber adsorption membrane is connected to a vacuum adsorption pipeline. The silicone rubber adsorption membrane 733 and the suction cups 734 provide uniform adsorption force through the vacuum adsorption pipeline, ensuring that the rotor core does not slip or deviate during the rotation process.

[0031] The polyurethane buffer layer 732 in this embodiment absorbs mechanical vibration and impact, protecting the rotor lamination surface from scratches or deformation.

[0032] In this embodiment, firstly, the rotor core shaft stop is formed, and the rotor upper pressure plate is locked to the shaft with bolts. Locking the rotor laminations to the rotor upper pressure plate ensures the crucial parameter during rotor core pressing—the inter-laminar pressure. (This step is done manually.)

[0033] Then, the gantry 71 moves laterally above workstation one, and the lifting cylinder drives the lifting base 72 to descend. Grippers 73 and 74 adsorb both ends of the rotor core through the vacuum adsorption pipeline. The polyurethane buffer layer 732 adheres to the rotor surface to buffer the clamping force and avoid rigid contact damage. Rotating the grippers (such as gripper 73) causes the rotor core to rotate 180°, so that the original lower end face faces upward.

[0034] The gantry frame 71 moves laterally along the guide rail to station two. The lifting cylinder precisely lowers the rotor to station two. The lower pressure plate 6 is manually locked and the magnet slot end plate 5 is fixed to complete the overall pressing. Example 2

[0035] In this embodiment, an upper pressure plate pressing assembly 8 and a lower pressure plate pressing assembly 9 are respectively provided on one side of workstation 1 2 and workstation 2 3; the upper pressure plate pressing assembly 8 and the lower pressure plate pressing assembly 9 have the same structure, including a rotating arm 81, a vacuum suction cup 82 and a slip ring rotating shaft 83; the vacuum suction cup 82 is fixedly installed at both ends of the rotating arm 81; the top of the slip ring rotating shaft 83 is fixedly connected to the center of the rotating arm 81; the slip ring rotating shaft 83 is fixedly installed on the lifting assembly.

[0036] In this embodiment, an upper pressure plate pressing assembly 8 and a lower pressure plate pressing assembly 9 are provided to facilitate material handling by the upper and lower pressure plates. The rotating arm 81 of the upper pressure plate pressing assembly 8 rotates to the pressure plate storage area via a slip ring rotating shaft 83. The vacuum suction cup 82 adsorbs and lifts the upper pressure plate 4. The slip ring rotating shaft 83 ensures stable air supply to the vacuum pipeline during rotation, preventing pipeline entanglement. The rotating arm 81 rotates to above the base of station one, and the lifting assembly drives the rotating arm 81 to descend, aligning the positioning hole of the upper pressure plate 4 with the conical positioning pin 10 on station one. The conical positioning pin (thinner at the top and thicker at the bottom) guides the upper pressure plate to accurately fall into place, avoiding assembly deviation.

[0037] The vacuum suction cup 82 maintains its adsorption state, and the lifting assembly continues to press down, pressing the upper pressure plate 4 tightly against the surface of the rotor core laminations. The lifting assembly continues to descend, applying a preset pressure to ensure that the pressure between the laminations meets the standard. Under the pressure-holding state, the upper pressure plate 4 is bolted to the rotor shaft using a tool (such as an electric wrench) to complete the fixation. The vacuum suction cup 82 releases its adsorption force, and the rotating arm 81 returns to the standby position.

[0038] The flipping assembly operates by flipping the clamped iron core 180 degrees and placing it on station two. The lower pressure plate and rotor magnet slot are then assembled, and finally, the nuts and screws are tightened.

[0039] Preferably, in this embodiment, a high-precision rotating platform (existing technology) is provided on station one and station two. A core placement seat is fixedly installed on the surface of the rotating platform, and the core placement seat is provided with a groove for placing the core.

[0040] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Those skilled in the art can make various modifications or equivalent substitutions to the present utility model within its substance and protection scope, and such modifications or equivalent substitutions should also be considered to fall within the protection scope of the present utility model's technical solution.

Claims

1. A permanent magnet rotor core pressing fixture, characterized in that: Includes a base (1); one end of the base (1) is provided with station one (2) and the other end is provided with station two (3); station one (2) is used to install the rotor upper pressure plate (4); station two (3) is used to install the rotor magnet slot end plate (5) and the lower pressure plate (6); a flipping assembly (7) is provided between station one (2) and station two (3).

2. The permanent magnet rotor core pressing fixture according to claim 1, characterized in that: The flipping assembly includes a gantry frame (71); the two ends of the gantry frame (71) move along the guide rails on the base (1); the gantry frame (71) is driven to move laterally and reciprocally by a transverse component; lifting bases (72) are symmetrically arranged on the columns on both sides of the gantry frame (71); the lifting bases (72) are connected to the columns through a lifting module; gripper one (73) or gripper two (74) is installed on the lifting bases (72) on both sides respectively; the gripper one (73) or gripper two (74) is a rotating gripper; the gripper one (73) and gripper two (74) are connected to the lifting base (72) through a push-pull component (75).

3. The permanent magnet rotor core pressing fixture according to claim 2, characterized in that: The lifting module is a longitudinal lateral movement module.

4. The permanent magnet rotor core pressing fixture according to claim 2, characterized in that: The push-pull assembly is a telescopic cylinder.

5. The permanent magnet rotor core pressing fixture according to claim 2, characterized in that: The first gripper (73) and the second gripper (74) have the same structure, including an arc-shaped gripper arm (731) and a polyurethane buffer layer (732) disposed inside the arc-shaped gripper arm (731).

6. The permanent magnet rotor core pressing fixture according to claim 5, characterized in that: A silicone rubber adsorption membrane (733) is also provided on the polyurethane buffer layer (732); a number of suction cups (734) are provided on the silicone rubber adsorption membrane; the silicone rubber adsorption membrane is connected to a vacuum adsorption pipeline.

7. The permanent magnet rotor core pressing fixture according to claim 1, characterized in that: One side of each of the workstations 1 (2) and 2 (3) is provided with an upper pressure plate pressing assembly (8) and a lower pressure plate pressing assembly (9); the upper pressure plate pressing assembly (8) and the lower pressure plate pressing assembly (9) have the same structure, including a rotating arm (81), a vacuum suction cup (82) and a slip ring rotating shaft (83); the vacuum suction cup (82) is fixedly installed at both ends of the rotating arm (81); the top of the slip ring rotating shaft (83) is fixedly connected to the center of the rotating arm (81); the slip ring rotating shaft (83) is fixedly installed on the lifting assembly.

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