KR100260397B1 - Method for manufacturing motor-core - Google Patents

Abstract

PURPOSE: A method for manufacturing a motor-core is provided to be capable of minimizing the amount of scrap to save manufacturing costs by effectively stamping a core unit in a stamp forming process. CONSTITUTION: The method for manufacturing the motor-core comprises a stamp forming step for a Si-steel plate, a stacking step for a plurality of core units, a coil winding step for winding a coil on the stacked core, and a coupling step. In the stamp forming step, a circular core unit is equally divided into a plurality of respective winding parts(22) so that respective divided surfaces(23) are exploded to be horizontally adjacent, and then the exploded winding parts(22) are stamped. In the coil winding step, insulators are coupled to respective winding parts of the stacked core(25) and then a plurality of coils are simultaneously wound on the respective winding parts of exploded status.

Description

Manufacturing method of motor core

The present invention relates to a manufacturing method of a motor core, in particular, to maximize the effective punching process of the material and at the same time improve the coil winding work process to improve the workability and productivity as well as to provide a uniform and excellent quality core It relates to a manufacturing method of the rotor core.

Referring to the general motor core manufacturing process with reference to FIG. 1, the silicon steel sheet material supplied in the roll state is automatically transferred, and each core unit is formed by the punch molding process, and the formed core units are laminated to a predetermined number. And coils are wound around the windings of the core in a state in which the insulator is coupled thereto.

In the manufacturing process of such a motor core, conventionally, the silicon steel sheet material (S) conveyed and supplied during the punching molding process is integrally punched at a predetermined interval as shown in FIG. 2 to obtain the core unit 15. Except for the circular core unit 15 to be punched out, that is, a lot of unnecessary scrap 15 'is generated, causing excessive material loss.

In addition, since the core unit 15 of the circularly molded molded unit is laminated by a separate jig (not shown) in the lamination process, workability due to lamination is inferior and additional work equipment is required accordingly.

In particular, in the coil winding process of winding a coil on a circular core 10 in which a plurality of core units 15 are stacked, as shown in FIG. 3, a winding machine (not shown) is provided at the center of the circular core 10. While winding up and down while winding the coils 12 formed in the radial direction while inserting the coils through the grooves 12a between the coiling portions 12, the winding machine guides the coils around the windings. Inconvenience in the winding operation due to the provision of the space between the winding and each winding portion 12 must be wound separately, which leads to a decrease in the productivity of the coil winding operation, and furthermore, on the winding portion 12 due to the difficulty of the winding operation. The work of winding the coils in a difficult manner makes it difficult to align the windings between the coils to be wound. Therefore, an air gap is formed between the coils that are entangled or the enameled part of the coil surface is damaged. The problem that results in a loss of quality due to be unleashed.

The present invention has been made to overcome the problems of the prior art described above has the following object.

It is an object of the present invention to provide a method for manufacturing a motor core in which the core unit is efficiently punched out in the punching molding process to minimize the amount of scrap to reduce the manufacturing cost.

In addition, the present invention is to effectively coil the winding work on the winding portion of the core in which a plurality of core units are laminated to improve the coil winding workability and productivity as well as to coil the coils are aligned to provide excellent quality uniformly. It is an object of the present invention to provide a method for manufacturing a motor core.

The object of the present invention described above is a punching molding process for forming a core unit by punching while feeding and feeding the silicon steel sheet material supplied in a roll state, and a laminating step of forming a core by laminating a predetermined number of core molded core units; In the manufacturing of a motor core comprising a coil winding step of winding a coil on the laminated core and a joining step of assembling the divided surfaces of the winding parts in the unfolded state to be in contact with each other to form a circular core. In the punching molding process, the core unit is circularly shaped so that the core unit is equally divided to cross each other in a state where the divided planes are horizontally connected to each other by equally dividing the winding parts, and the core unit is stacked in the coil winding process. After the insulator is coupled to each winding portion of the core, a plurality of noses are simultaneously applied to each winding portion in a horizontally deployed state. By winding it is to be achieved by the made.

1 is a flow chart showing a manufacturing process of the motor core.

2 and 3 show a conventional manufacturing process,

2 is a punch molding process of the core unit,

3 is a process of winding a coil on a core.

Figure 4 is a plan view showing a core unit punching molding process of the present invention.

Figure 5 is a partial front view showing a process for laminating the punching molded core unit of the present invention.

6 is a partial front view showing another embodiment of FIG.

Figure 7 is a plan view showing a process of winding a coil on the core of the present invention.

8 is a plan view showing a core in a finished state of the present invention.

* Explanation of symbols for main parts of the drawings

21: core unit 23: dividing surface

22: winding 23a: joint

22a: support hole 25: core

22b: embossing

Next, the present invention will be described in more detail with reference to the accompanying drawings.

That is, the present invention provides a punching molding process of forming a core unit by punching while feeding and feeding the silicon steel sheet material supplied in a roll state, and a laminating step of forming a core by laminating a predetermined number of the molded core units, In the manufacturing of a motor core comprising a coil winding step of winding a coil in a laminated core and a joining step of assembling the divided surfaces of the winding parts in the deployed state to be in contact with each other to form a circular core. The core unit in the punching molding process is formed by crossing the cores in a circular core unit by equally dividing each winding part in a state in which the divided surfaces are horizontally connected to each other and being cross-molded, and forming the stacked cores in the coil winding process. After the insulator is coupled to each winding part, a plurality of coils are wound simultaneously at each winding part in a horizontally developed state. Is done.

In the punching molding process, as shown in FIG. 4, the core unit 25 crosses the plurality of core units 25 in the longitudinal direction of the silicon steel sheet S so that the core molds are simultaneously formed while the core units 25 and 25 are circular. Of the core unit is radially divided into radially divided portions, and is formed by punching in a combustion process in a state in which the winding unit 22 extends horizontally to the joint portion 23a formed at one end of the divided surface 23.

In this way, the punching molding of the material S in a state in which the plurality of core units 25 and 25 are opposed to each other is performed by scraping the core S in a circular state as compared with the punching molding at regular intervals. 25 ') part saves about 25% of material savings, which reduces manufacturing costs.

As shown in FIG. 5, the lamination process results in a plurality of low-layer core units 25 formed in the punch molding process, which are embossed (22b) at appropriate positions on the respective winding portions 22 of the core unit 25. ) To form the embossing (22b) by stacking the embossing (22b) to the mutually increased friction surface to support a continuous position in a predetermined position or to a suitable position on each winding 22 as shown in FIG. 22a) is continuously laminated to a predetermined position in a state in which the support hole 22a is guided on the support pin 30.

On the other hand, such a lamination process is to be carried out in a continuous process by simultaneously forming the core unit 25 punched in the punching process at the same time under the punching process, and the support hole 22a and the support pin 30 as described above. ), The embossing 22b makes it easy to stack to a predetermined position, so that the jig for the separate stacking is unnecessary.

The coil winding process is performed by a coil winding machine (not shown) after coupling an insulator on each winding part 22 in a state of being molded in a punching molding process and stacked in a plurality of lamination processes as shown in FIG. The winding unit 22 is formed in a horizontally deployed state, and thus, each winding unit 22 has a wide groove 24 so that the winding machine can easily take up and lower the winding operation. The work can be performed at a high speed, and moreover, a winding operation can be performed simultaneously by using a plurality of coil winding machines for each winding portion 22, that is, for example, three winding portions 22, 22, 22 are provided. At the same time, if the coil winding process is completed twice, the winding workability is excellent, and as described above, the coil is wound in an orderly manner with the ease of the winding work on the winding part 22. Standing between the coils will be uniformly and perform superior coil winding operation to prevent the damage to the enamel portion of the air gap coil or surface generated eonggyeo.

The coupling process is circular so that the divided surfaces 23 of the winding portions 22 which are radially equally divided and horizontally developed of the core 25 after the coil winding process are brought into contact with each other as shown in FIG. Since the state is coupled to the core 20 is completed manufacturing.

At this time, the core 20 is to provide a solid assembly state while the adjacent divided surface 23, 23 is engaged with each other in order to increase the coupling force between each of the windings (22).

Referring to FIG. 8, the core, which is a preferred embodiment of the present invention, is described in detail in order to embody the manufacturing method of the above motor core.

That is, in the motor core of the present invention, the core unit 25 in which the respective winding portions 22 are equally divided is laminated by the embossing 22b or the insertion of the support pins 30 of the support holes 22a, and the insulators are coupled to each other. After winding the coil (C) on the winding portion 22 in a horizontal winding operation, the groove 23b and the projection (c) formed opposite to the divided surface 23 of the isolated core unit 25 are engaged with each other in a circular shape. It is achieved by forming a bond.

As described above, the present invention efficiently cuts the circular core unit in a radially divided flat state in the punching molding process of the fed material, thereby minimizing the amount of scrap and lowering the manufacturing cost. The workability and coiling speed of the coils on the horizontally wound windings of the cores in which the unit is stacked are excellent, and the coils can be wound in an aligned state to have a uniform and excellent quality.

Claims (1)

The punching molding process of punching and forming the core unit by automatically feeding and feeding the silicon steel sheet material supplied in the roll state, the laminating process of forming a core by laminating a predetermined number of the punched core unit, and the coil on the laminated core In the manufacturing process of the motor core consisting of a coil winding step of winding the winding and the coupling step of assembling the divided surface of each winding portion in the unfolded state to be in contact with each other to form a circular core. The core unit is circularly formed so that circular core units are equally divided to each other in a state where the divided surfaces are horizontally connected to each other, and are cross-molded to each other, and are insulated on each winding portion of the stacked cores in the coil winding process. Made by winding a plurality of coils at the same time to each winding unit in a horizontally deployed state after combining The method of Motor core features.

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