A magnetic pole core that is easy to wind and its processing method

Abstract

This invention discloses a magnetic pole core for easy winding and its processing method, comprising a damping ring, a damping rod, a magnetic pole pressure plate, a pull rod, magnetic pole laminations, magnetic pole rivets, and a steel pipe. The magnetic pole pressure plate and magnetic pole laminations are stacked side by side to form the magnetic pole core, with two magnetic pole pressure plates placed at both ends of the magnetic pole core. The pull rod is connected to the inner center hole of the magnetic pole pressure plate and passes through the magnetic pole core. The magnetic pole rivets pass through the magnetic pole core to fix the stacked magnetic pole core. The damping rod is inserted into the damping hole on the magnetic pole lamination, and the damping ring is fixed at both ends of the damping rod. The steel pipe is fixed to one side of the magnetic pole pressure plate. This method facilitates the direct winding of magnetic pole coils on a single salient pole core. The production cycle for each magnetic pole is shortened from one week to one day. Furthermore, the new winding process significantly improves the appearance quality and yield compared to traditional manual processes.

Description

Technical Field

[0001] This invention belongs to the field of magnetic pole core processing technology, specifically relating to a magnetic pole core that is easy to wind and its processing method. Background Technology

[0002] Motor rotor: This is the rotating component of a motor. A motor consists of a rotor and a stator, and it is a device used to convert electrical energy into mechanical energy and vice versa. Motor rotors are divided into electric motor rotors and generator rotors. In the manufacturing of motor rotors, traditional salient-pole structures use thick, flat copper wire and are all manufactured using single-pole winding. The manufacturing process is outdated and cumbersome, involving complex steps such as winding, shaping, hot-pressing the magnetic poles, and applying insulating fabric between layers, resulting in low production efficiency. Therefore, we propose a magnetic pole core that facilitates winding and its processing method. Summary of the Invention

[0003] The purpose of this invention is to provide a magnetic pole core that is easy to wind and its processing method, so as to solve the problem of magnetic pole cores being inconvenient to wind as mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a magnetic pole core that is easy to wind, characterized in that it includes a damping ring, a damping rod, a magnetic pole pressure plate, a pull rod, a magnetic pole lamination, a magnetic pole rivet, and a steel pipe;

[0005] The magnetic pole plates and magnetic pole laminations are stacked side by side to form a magnetic pole core, and the two magnetic pole plates are placed at both ends of the magnetic pole core.

[0006] The pull rod is connected to the inner center hole of the magnetic pole pressure plate and passes through the magnetic pole core;

[0007] The magnetic pole rivets penetrate the magnetic pole cores to fix the stacked magnetic pole cores;

[0008] The damping rod is inserted into the damping hole on the magnetic pole piece, and the damping ring is fixed at both ends of the damping rod;

[0009] The steel pipe is fixed to one side of the magnetic pole pressure plate.

[0010] Preferably, a support plate is provided on one side of the magnetic pole pressure plate, and the other end of the support plate is fixed to another magnetic pole pressure plate.

[0011] Preferably, the magnetic pole lamination is made of magnetic pole steel plate.

[0012] Preferably, four magnetic pole rivets are provided, and the four magnetic pole rivets are distributed around the magnetic pole pressure plate.

[0013] Preferably, two damping rings are provided, and the damping rings are fixed to the damping rod by welding.

[0014] Preferably, the magnetic pole plate has a through hole, and the inner diameter of the through hole is smaller than the inner diameter of the damping hole on the magnetic pole lamination.

[0015] Preferably, two steel pipes are arranged side by side along the short side of the magnetic pole pressure plate.

[0016] Preferably, the outer diameter of the pull rod is equal to the inner diameter of the central hole on the inner side of the magnetic pole pressure plate.

[0017] A method for processing a magnetic pole core that is easy to wind includes the following steps:

[0018] a. Place the rotor magnetic pole core assembly pad on the lower pressure plate and place it stably. Then, suspend the mandrel vertically in its hole, install the magnetic pole pressure plate and magnetic pole lamination, and continuously shape, tap and tighten them. Check and then install the upper magnetic pole pressure plate.

[0019] b. Hoist the positioning iron of the press riveting jig, drive in the damping rod to position the iron core, hoist the upper pressure plate of the press riveting jig, and hoist the whole thing onto the worktable of the hydraulic press.

[0020] c. Apply pressure to the iron core for the first time, tighten it, and then lift the iron core down from the hydraulic press, lay it horizontally, and place it stably;

[0021] d. Remove the pad, insert the lower punch, install the magnetic pole rivet, and then reinstall the pad;

[0022] e. Hoist the iron core back onto the hydraulic press, insert the upper punch, release the pressure plate of the rivet, apply pressure a second time, rivet the rotor rivets open, and inspect.

[0023] f. Remove the pad, press out the mandrel, insert the pull rod into the iron core, remove the rivet, tighten the eye nut, and place the iron core on the bracket and put it stably.

[0024] g. Symmetrically weld the tie rods and magnetic pole pressure plates at both ends, remove welding slag, grind the protruding parts of the rotor rivets and welds, and file the sharp corners and burrs around the iron core.

[0025] h. Adjust the length of the damping rods at both ends, weld the damping rods at both ends and file the weld seam, leaving a gap between the damping ring and the magnetic pole pressure plate;

[0026] i. Weld the support plate to the iron core and weld both ends to the magnetic pole plate, and clean the welding slag. Weld the two steel pipes to both sides of the magnetic pole plate.

[0027] g. Finally, several countersunk holes and two process holes are machined in the center of the magnetic pole core.

[0028] Preferably, the first pressurization pressure in step c is less than the second pressurization pressure in step e;

[0029] Preferably, in step d, when the magnetic pole rivet is installed, one end of the magnetic pole rivet is tapered.

[0030] Compared with the prior art, the beneficial effects of the present invention are:

[0031] This invention facilitates the direct winding of magnetic pole coils onto a single salient pole iron core. The coil is directly wound onto the magnetic pole iron core, reducing the production cycle of each magnetic pole from one week to one day. Furthermore, the new winding process significantly improves the appearance quality and yield compared to traditional manual processes. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of the present invention;

[0033] Figure 2 For the purposes of this invention Figure 1 A schematic diagram of the AA structure;

[0034] Figure 3 For the present invention Figure 1 Schematic diagram of the cross-sectional structure at point B;

[0035] Figure 4 This is a schematic diagram of the magnetic pole pressure plate structure of the present invention;

[0036] Figure 5 This is a schematic diagram of the magnetic pole lamination structure of the present invention;

[0037] Figure 6 This is a schematic diagram of the damping ring structure of the present invention;

[0038] In the diagram: 1. Damping ring; 2. Damping rod; 3. Magnetic pole pressure plate; 4. Tie rod; 5. Support plate; 6. Magnetic pole lamination; 7. Magnetic pole rivet; 8. Steel pipe. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Please see Figures 1-6 The present invention provides a technical solution: a magnetic pole core that is easy to wind, comprising a damping ring 1, a damping rod 2, a magnetic pole pressure plate 3, a pull rod 4, a magnetic pole punch 6, a magnetic pole rivet 7, and a steel pipe 8;

[0041] The magnetic pole pressure plate 3 and the magnetic pole lamination 6 are stacked side by side to form a magnetic pole core, and the two magnetic pole pressure plates 3 are placed at both ends of the magnetic pole core;

[0042] The pull rod 4 is connected to the inner center hole of the magnetic pole pressure plate 3 and passes through the magnetic pole core, which facilitates the magnetic pole pressure plate 3 to be stacked and connected with multiple magnetic pole pieces 6.

[0043] The magnetic pole rivet 7 penetrates the magnetic pole core, fixing the stacked magnetic pole core and facilitating the fixing of the magnetic pole pressure plate 3 and multiple magnetic pole pieces 6.

[0044] The damping rod 2 is inserted into the damping hole on the magnetic pole piece 6. The damping rod 2 is arranged with unequal pitch, and the damping ring 1 is fixed at both ends of the damping rod 2.

[0045] The steel pipe 8 is fixed to one side of the magnetic pole pressure plate 3. During winding, it makes the coil bend smoother and forms a ventilation channel at the end of the coil to facilitate heat dissipation.

[0046] Preferably, a support plate 5 is provided on one side of the magnetic pole pressure plate 3, and the other end of the support plate 5 is fixed to another magnetic pole pressure plate 3, so as to facilitate the lifting of the coil during winding.

[0047] Preferably, the magnetic pole piece 6 is made of magnetic pole steel plate.

[0048] Preferably, four magnetic pole rivets 7 are provided, and the four magnetic pole rivets 7 are distributed around the magnetic pole pressure plate 3, which facilitates the stacking and fixing effect of the magnetic pole pressure plate 3 and multiple magnetic pole pieces 6.

[0049] Preferably, two damping rings 1 are provided, and the damping rings 1 and the damping rod 2 are fixed by welding, which facilitates convenient fixing.

[0050] Preferably, the magnetic pole pressure plate 3 has a through hole, the inner diameter of which is smaller than the inner diameter of the damping hole on the magnetic pole piece 6, so as to facilitate the insertion of the damping rod into the inside of the magnetic pole piece 6.

[0051] Preferably, two steel pipes 8 are arranged side by side along the short side of the magnetic pole pressure plate 3 to facilitate better winding effect.

[0052] Preferably, the outer diameter of the pull rod 4 is equal to the inner diameter of the central hole on the inner side of the magnetic pole pressure plate 3, so that the pull rod 4 can be inserted into the inner side of the magnetic pole pressure plate 3 for engagement.

[0053] A method for processing a magnetic pole core that is easy to wind includes the following steps:

[0054] a. Place the rotor magnetic pole core assembly pad on the lower pressure plate and place it stably. Then, suspend the mandrel vertically in its hole, install the magnetic pole pressure plate 3 and magnetic pole lamination 6, and continuously shape, tap and tighten them. Check and then install the upper magnetic pole pressure plate 3.

[0055] b. Hoist the positioning iron of the riveting jig, drive in the damping rod 2 to position the iron core, hoist the upper pressure plate of the riveting jig, and hoist the whole thing onto the worktable of the hydraulic press.

[0056] c. Apply pressure to the iron core for the first time, tighten it, and then lift the iron core down from the hydraulic press, lay it horizontally, and place it stably;

[0057] d. Remove the pad, insert the lower punch, install the magnetic pole rivet 7, and then install the pad.

[0058] e. Hoist the iron core back onto the hydraulic press, insert the upper punch, release the pressure plate of the rivet, apply pressure a second time, rivet the rotor rivets open, and inspect.

[0059] f. Remove the pad, press out the mandrel, insert the pull rod into the iron core, remove the rivet, tighten the eye nut, and place the iron core on the bracket and put it stably.

[0060] g. Symmetrically weld the two ends of the tie rod 4 to the magnetic pole pressure plate 3, remove the welding slag, grind the protruding parts of the rotor rivets and the weld seam, and file the sharp corners and burrs around the iron core.

[0061] h. Adjust the length of the damping rods 2 at both ends, weld the damping rods 2 at both ends and file the weld seam, leaving a gap between the damping ring 1 and the magnetic pole pressure plate 3;

[0062] i. Weld the support plate 5 to the iron core and weld both ends to the magnetic pole pressure plate 3, and clean the welding slag. Weld the two steel pipes 8 to both sides of the magnetic pole pressure plate 3.

[0063] g. Finally, several countersunk holes and two process holes are machined in the center of the magnetic pole core.

[0064] Preferably, the first pressurization pressure in step c is less than the second pressurization pressure in step e;

[0065] Preferably, in step d, when the magnetic pole rivet 7 is installed, one end of the magnetic pole rivet 7 is tapered.

[0066] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A magnetic pole core that is easy to wind, characterized in that: Includes a damping ring (1), a damping rod (2), a magnetic pole pressure plate (3), a tie rod (4), a magnetic pole punch (6), a magnetic pole rivet (7), and a steel pipe (8); The magnetic pole pressure plate (3) and the magnetic pole lamination (6) are stacked side by side to form a magnetic pole core, and the two magnetic pole pressure plates (3) are placed at both ends of the magnetic pole core; The pull rod (4) is connected to the inner center hole of the magnetic pole pressure plate (3) and passes through the magnetic pole core; The magnetic pole rivet (7) penetrates the magnetic pole core to fix the stacked magnetic pole core; The damping rod (2) is inserted into the damping hole on the magnetic pole piece (6), and the damping ring (1) is fixed at both ends of the damping rod (2); The steel pipe (8) is fixed to one side of the magnetic pole pressure plate (3); The processing method for this easy-to-wind magnetic pole core includes the following steps: a. Place the rotor magnetic pole core assembly pad on the lower pressure plate and place it stably. Then, hang the mandrel vertically in its hole, install the magnetic pole pressure plate (3) and magnetic pole lamination (6), and continuously shape, tap and tighten, check, and then install the upper magnetic pole pressure plate (3). b. Hoist the positioning iron of the press riveting tire, drive in the damping rod (2) to position the iron core, hoist the upper pressure plate of the press riveting tire, and hoist the whole thing onto the worktable of the hydraulic press. c. Apply pressure to the iron core for the first time, tighten it, and then lift the iron core down from the hydraulic press, lay it horizontally, and place it stably; d. Remove the pad, insert the lower punch, install the magnetic pole rivet (7), and then install the pad; e. Hoist the iron core back onto the hydraulic press, insert the upper punch, release the pressure plate of the rivet, apply pressure a second time, rivet the rotor rivets open, and inspect. f. Remove the pad, press out the mandrel, insert the pull rod into the iron core, remove the rivet, tighten the eye nut, and place the iron core on the bracket and put it stably. g. Weld the tie rods (4) at both ends to the magnetic pole pressure plate (3) symmetrically, remove the welding slag, grind the protruding part of the rotor rivet and the weld flat, and file the sharp corners and burrs around the iron core; h. Adjust the length of the damping rods (2) at both ends, weld the damping rods (2) at both ends and file the weld seam. Leave a gap between the damping ring (1) and the magnetic pole pressure plate (3). i. Weld the support plate (5) onto the iron core and weld both ends to the magnetic pole pressure plate (3), and clean the welding slag. Weld the two steel pipes (8) onto both sides of the magnetic pole pressure plate (3). g. Finally, several countersunk holes and two process holes are machined in the center of the magnetic pole core.

2. A magnetic pole core for easy winding according to claim 1, characterized in that: The magnetic pole piece (6) is made of magnetic pole steel plate.

3. A magnetic pole core for easy winding according to claim 1, characterized in that: Four magnetic pole rivets (7) are provided, and the four magnetic pole rivets (7) are distributed around the magnetic pole pressure plate (3).

4. A magnetic pole core for easy winding according to claim 1, characterized in that: The magnetic pole plate (3) has a through hole, the inner diameter of which is smaller than the inner diameter of the damping hole on the magnetic pole piece (6).

5. A magnetic pole core for easy winding according to claim 1, characterized in that: The outer diameter of the pull rod (4) is equal to the inner diameter of the central hole on the inner side of the magnetic pole pressure plate (3).

6. A magnetic pole core for easy winding according to claim 1, characterized in that: The first pressurization pressure in step c is less than the second pressurization pressure in step e; In step d, when the magnetic pole rivet (7) is installed, one end of the magnetic pole rivet (7) is tapered.

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