Novel structure of magnetic field forming press coil for rare earth permanent magnet material

Abstract

The utility model discloses a novel magnetic field forming press coil structure for rare earth permanent magnet materials, and relates to the technical field of rare earth permanent magnet material production equipment. Comprising a coil center cylinder, the outer edge of the coil center cylinder is fixedly connected with a plurality of distributed coil bodies in a sleeved mode, a circle of insulation inserting plate is arranged between the opposite sides of every two adjacent coil bodies, and the two sides of each circle of insulation inserting plate are tightly attached to the corresponding sides of every two adjacent coil bodies. Every two adjacent insulating plug boards are connected through an insulating cloth strip. According to the utility model, the coil main bodies are separated through the arrangement of the insulating insertion plates, so that the insulativity between the coil main bodies is improved, and meanwhile, the insulating insertion plates and the coil main bodies are tightly bound through the arrangement of the insulating cloth strips, so that the coil main bodies and the insulating insertion plates are prevented from sliding in the working process, and the coil main bodies are protected; and each coil main body shows higher insulativity, conduction among the coil main bodies is reduced, and the operation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to rare earth permanent magnetic material production equipment technical field, concretely is a new structure of magnetic field forming press coil for rare earth permanent magnetic material. BACKGROUND

[0002] 2:17 samarium-cobalt permanent magnet material adopts traditional powder metallurgy method to manufacture, and its main production link includes: batching - vacuum induction melting - powder making - forming - sintering - aging, and the forming is one important link, generally takes the magnetic field forming press as the production tool, and the coil is the core component of the magnetic field forming press, it is by the copper conductor that the insulating paint is tightly wound several groups of sub-coils in series, and reliable insulation must be present between the sub-coils, otherwise the sub-coils will be conducted, which will weaken the strength, stability, symmetry of the magnetic field of the magnetic field forming press, which will seriously affect the quality consistency of the product.

[0003] The insulation between the sub-coils of the traditional magnetic field forming press mainly relies on the insulating paint of the copper conductor, and when the magnetic field forming press works, the magnetic field is generated by the high-strength direct current of the coil, and after electrification, the sub-coils will have a slight relative movement, and the long-time mutual friction between the sub-coils will damage the reliability of the insulating layer of the copper conductor of the coil, and thus lead to the conduction between the sub-coils, therefore, a new structure of magnetic field forming press coil for rare earth permanent magnetic material is developed. UTILITY MODEL CONTENT

[0004] The main purpose of the utility model is to provide a new structure of magnetic field forming press coil for rare earth permanent magnetic material, which can effectively solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0006] A new structure of magnetic field forming press coil for rare earth permanent magnetic material, comprising a coil center cylinder, a plurality of uniformly distributed coil bodies are fixedly sleeved on the outer edge of the coil center cylinder, and one circle of insulating inserts is arranged between the opposite sides of each two adjacent coil bodies, the two sides of each circle of insulating inserts are tightly attached to the corresponding sides of the adjacent two coil bodies, the adjacent two pieces of insulating inserts are connected through insulating cloth strips, and each piece of insulating cloth strip is tightly attached to the outer edge of the corresponding coil body.

[0007] Preferably, each circle of insulating inserts comprises two pieces of insulating half-hoops, a group of fixed insertion grooves are formed at the two ends of one piece of insulating half-hoop in the same circle of insulating inserts, a group of fixed insertion rods are fixedly connected to the two ends of the other piece of insulating half-hoop in the same circle of insulating inserts, and each group of fixed insertion rods is matched with one group of fixed insertion grooves.

[0008] Preferably, the outer edge of each of the insulating plugboard is fixedly connected with a plurality of evenly distributed plugboard connecting buckles, and the two ends of the coil center tube are respectively fixedly connected with a group of cylinder edge connecting buckles.

[0009] Preferably, each of the cylinder edge connecting buckles and the adjacent plugboard connecting buckle is connected through an insulating cloth strip, and each of the plugboard connecting buckles and the adjacent plugboard connecting buckle is connected through an insulating cloth strip.

[0010] Compared with the prior art, the utility model has the advantages of the following beneficial effects:

[0011] Through the setting of the insulating plugboard, the coil body is separated, thereby improving the insulation between the coil bodies, and through the setting of the insulating cloth strip, the insulating plugboard and the coil body are tightly bound, thereby avoiding the sliding between the coil body and the insulating plugboard in the working process, protecting the coil body, making each coil body show stronger insulation, reducing the conduction between the coil bodies, and improving the operation efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is an isometric view of the utility model;

[0013] Fig. 2 It is a coil body structure schematic view of the utility model;

[0014] Fig. 3 It is an insulating protection ring structure schematic view of the utility model.

[0015] In the drawing: 101, coil body; 102, coil center tube; 103, cylinder edge connecting buckle; 201, insulating plugboard; 202, plugboard connecting buckle; 203, fixed insertion slot; 204, fixed insertion rod; 301, insulating cloth strip. DETAILED DESCRIPTION

[0016] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific implementation manners.

[0017] In the description of the utility model, it should be pointed out that the positions or location relationships indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end" and "another end" are based on the positions or location relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model in indicating or implying that the indicated devices or elements must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0018] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, the term '' install '' '' set with '' '' connection '' and the like, should do broad sense understanding, for example '' connection '', can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can pass through intermediate medium indirectly connected, can be two element inside intercommunication.For the ordinary skill in the art, can understand the concrete meaning of the above-mentioned term in the utility model with specific circumstances.

[0019] Please refer to Figs. 1-3 The utility model provides a technical scheme:

[0020] A new structure of magnetic field forming press coil for rare earth permanent magnet material, comprising a coil center cylinder 102, a plurality of uniformly distributed coil bodies 101 are fixedly sleeved on the outer edge of the coil center cylinder 102, an insulating plugboard 201 is arranged between the opposite sides of every two adjacent coil bodies 101 respectively, every insulating plugboard 201 is tightly attached to the corresponding side of two adjacent coil bodies 101 on both sides, two adjacent insulating plugboards 201 are connected through an insulating cloth strip 301, and every insulating cloth strip 301 is tightly attached to the outer edge of the corresponding coil body 101.In this embodiment, the insulating plugboard 201 is a TPU thermoplastic polyurethane rubber sheet with the characteristics of temperature resistance, oil resistance, high strength, wear resistance and high insulation, and is set to 0.2-0.4 mm thick, which strengthens the insulation between the coil bodies 101 of the magnetic field forming press.

[0021] The insulation plugboard 201 of each turn comprises two pieces of insulation half hoop, a group of fixed insertion slots 203 are respectively arranged at two ends of one piece of insulation half hoop in the same turn of insulation plugboard 201, a group of fixed insertion rods 204 are respectively fixedly connected to two ends of another piece of insulation half hoop in the same turn of insulation plugboard 201, and each group of fixed insertion rods 204 is matched with a group of fixed insertion slots 203. The outer edge of each turn of insulation plugboard 201 is fixedly connected with a plurality of evenly distributed plugboard connecting buckles 202, and the two ends of the coil center cylinder 102 are respectively fixedly connected with a group of cylinder edge connecting buckles 103. Each cylinder edge connecting buckle 103 and the adjacent plugboard connecting buckle 202 are connected through an insulation cloth strip 301, and each plugboard connecting buckle 202 and the adjacent another plugboard connecting buckle 202 are connected through an insulation cloth strip 301. In the embodiment, the insulation cloth strip 301 is pure cotton cloth, which can generate as little static electricity as possible during the operation of the device to avoid affecting the magnetic field. In actual use, the forming press coil is formed by placing six coil bodies 101 in series in the coil shell after being combined, and the coil shell and the coil bottom plate are fastened together by twelve screws after being provided with a sealing gasket. By measuring the relationship between the total height of the coil after being combined in series and the height between the coil shell and the coil bottom plate, the two end faces of the coil after being combined in series are provided with a TPU thermoplastic polyurethane rubber pad with a suitable thickness and consistent with the inner and outer diameters of the coil, so that the coil after being combined in series is in a tightly pressed state in the coil shell, and the mutual movement between the coils of the magnetic field forming press is minimized.

[0022] It should be noted that the utility model is a new structure of a magnetic field forming press coil for rare earth permanent magnet materials, which achieves the following technical effects: the coil body 101 is separated by the insulation plugboard 201, thereby improving the insulation between the coil bodies 101, and the insulation plugboard 201 and the coil body 101 are tightly bound by the insulation cloth strip 301, thereby avoiding sliding between the coil body 101 and the insulation plugboard 201 in the working process, protecting the coil body 101, making each coil body 101 have stronger insulation, reducing the conduction between the coil bodies 101, and improving the operation efficiency. In actual use, the magnetic field strength generated by the utility model is significantly improved, the demagnetization current is reduced from the usual 30A to 13A, the magnetic field stability is improved, the magnetic field forming press can work continuously for a long time, the demagnetization field is still stable, and there is no phenomenon of adsorbing magnetic powder on the orientation surface of the blank.

[0023] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended examples and their equivalents.

Claims

1. A novel structure for a magnetic field forming press coil of rare earth permanent magnet materials, comprising a coil center cylinder (102), characterized in that: The outer edge of the coil center tube (102) is sleeved with a plurality of uniformly distributed coil bodies (101), and a circle of insulating inserts (201) is arranged between the opposite sides of two adjacent coil bodies (101), the two sides of each circle of insulating inserts (201) are tightly attached to the corresponding sides of two adjacent coil bodies (101), and the two adjacent insulating inserts (201) are connected by an insulating cloth strip (301), and each insulating cloth strip (301) is tightly attached to the outer edge of the corresponding coil body (101).

2. The new structure of the magnetic field forming press coil for rare earth permanent magnetic material according to claim 1, characterized in that: Each circle of insulating inserts (201) includes two insulating half hoops, a group of fixed insertion slots (203) are formed at the two ends of one of the two insulating half hoops of the same circle of insulating inserts (201), and a group of fixed insertion rods (204) are fixedly connected to the two ends of the other insulating half hoop of the same circle of insulating inserts (201), and each group of fixed insertion rods (204) is matched with a group of fixed insertion slots (203).

3. The new structure of the magnetic field forming press coil for rare earth permanent magnetic material according to claim 1, characterized in that: The outer edge of each circle of insulating inserts (201) is fixedly connected with a plurality of uniformly distributed insert connecting buckles (202), and the two ends of the coil center tube (102) are fixedly connected with a group of tube edge connecting buckles (103).

4. The new structure of the magnetic field forming press coil for rare earth permanent magnetic material according to claim 3, characterized in that: Each of the tube edge connecting buckles (103) and the adjacent insert connecting buckles (202) are connected by an insulating cloth strip (301), and each of the insert connecting buckles (202) and the adjacent other insert connecting buckles (202) are connected by an insulating cloth strip (301).

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