KR100431940B1 - Apparatus for automatically maintaining core direction, including proximity sensors, ball flange, stepping motor, and control unit - Google Patents

Abstract

PURPOSE: An apparatus is provided to reduce work time and error by automatically maintaining alignment direction of stator iron pieces so as to wind coils on stator iron pieces of a motor. CONSTITUTION: An apparatus comprises proximity sensors(41,42,43) arranged on a line connecting centers of I-shaped poles; a jig(45) where a core for winding is mounted; a ball flange(44) for fixing the core mounted on the jig such that the core does not move; a stepping motor(46) for rotating the jig such that the core mounted on the jig is placed at an accurate position with respect to the device for winding; and a control unit for sensing on/off operation of the sensors in accordance with the sensing operations of the proximity sensors at the state where the core is mounted on the jig, and rotating the stepping motor until a satisfactory condition is obtained.

Description

Core Orientation Auto Retainer

The present invention relates to a directional position control device of the stator iron pieces laminated to the motor, and in particular, in order to winding the stator iron pieces laminated to the motor to align the stator iron pieces in a constant direction for this purpose to automatically maintain the orientation of the stator iron pieces for this purpose. It relates to a core direction automatic holding device.

In general, a core, also called a stator iron piece, is also called a magnetic core, and is used as a path of a magnetic line, that is, a magnetic path such as a transformer, a coil, a relay, an electromagnet, a motor, and the like. Such a core is a very important component that determines the performance of the above-described electronic components, and its functional characteristics can be said to be in the winding ratio of the iron wire wound on the core and the fineness on the winding.

Therefore, the winding of the iron wire can be said to be very main, with reference to the accompanying Figures 1 to 5 look at the process of winding the wire to the core as follows.

1 is a diagram illustrating a shape of a core, FIG. 2 is a diagram illustrating a shape of a core seated on a work jig, and FIG. 3 is a diagram illustrating a winding direction of a core, and FIG. 4 illustrates a winding method of a core. 5 is a plan view of a core in a state in which winding is completed.

In order to wind the core 13, the direction must be kept constant at all times, and as shown in FIG. 2, it must be seated on the working jig 12 for this purpose.

Then, as the winding jig 12 rotates, as shown in the accompanying FIG. 4, the T-shaped pole (1) while skipping a pair of poles (pole) consisting of a pair of I-shaped pole (1) and T-shaped pole (2) 2), where the start and end positions of the winding direction indicated by reference numerals U1 to U4 and the winding direction indicated by V1 to V4 are always at constant positions so that assembly with the PCB of the motor is possible.

However, since the core has a vertical symmetrical shape, as shown in FIG. 1, it is difficult to grasp the direction of the core, so that the key groove shown by reference numeral 4 is used to set the reference point. It is formed on the inner circumferential surface to help directional selection.

Accordingly, the reference I-shaped pole 22 as shown in FIG. 3 attached to the key groove 4 of the core 13 to fit the key 11 of the winding jig 12 by holding the direction based on the key groove 4. ) Is always in line with the winding machine (21).

Therefore, the operation of the apparatus for maintaining the direction of the conventional core as described above is performed in the following order.

1. The operator visually checks the position of the key groove 4 formed inside the core.

2. The worker maintains the direction as shown in Figure 3 attached to the key groove (4) with his own hands.

3. As shown in Figure 2 attached to the winding jig 12 to match the key and the key groove to seat the core.

Therefore, the work order as described above is made purely by the operator, so if the work takes a long time and is wrongly judged, a mistake is made in inserting a key into another groove formed in the inner circumferential surface of the core, that is, the screw fastening groove 3. There was a problem of being easy to do.

An object of the present invention for solving the above problems is to automatically align the stator iron pieces in a certain direction in order to winding the stator iron pieces stacked on the motor to automatically maintain the direction of the core direction automatically maintaining the orientation of the stator iron pieces for this purpose To provide.

1 is an exemplary view of a core shape

Figure 2 is an exemplary view of the shape of the core seated on the work jig

3 is an exemplary diagram for explaining a winding direction of a core;

4 is an exemplary diagram for explaining a winding method of a core;

5 is a plan view of the core in the state that the winding is completed

6 is an exemplary view for explaining the structural features of the core

7 is a configuration example of the automatic core direction maintenance apparatus according to the present invention

<Explanation of symbols for the main parts of the drawings>

41-43: Proximity sensor 44: Ball flanger

45: Jig 46: Stepping Motor

According to a feature of the present invention for achieving the above object, if the screw fastening groove is formed on a straight line connecting the center of the I-shaped pole among the poles forming the outer circumferential surface of the core present in only one place on the inner circumferential surface In the core orientation maintaining device for accurately seating the core in order to

The proximity sensor provided at the position of the screw fastening groove and the position of the corresponding I-shaped pole on the straight line connecting the center of the I-shaped pole, the jig in which the core for the winding is seated, and the core seated on the jig are not shaken. A ball flanger for holding, a stepping motor for rotating the jig so that the core seated on the jig can be placed in position with the device for the winding operation, and the sensing operation of the proximity sensor while the core is seated on the jig. It provides a core direction maintaining apparatus including a control unit for rotating the stepping motor until the on / off is detected and the acceptance decision is made.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

Typically, the outer circumferential surface shape of the core is symmetrical up, down, left and right, but only one place on the inner circumferential surface when the screw fastening groove is formed on a straight line connecting the center of the I-shaped pole as shown in FIG. If it is properly seated, the sensor is provided at the positions indicated by reference numerals 31 to 33, that is, the position of the first I-pole and screw fastening groove and the second I-pole. Therefore, it is determined whether or not normal seating is performed.

Table 1 below shows the criteria for determining the correct seating based on the on / off status of each sensor.

Position sensor Position sensor Position sensor Judgment off off off fail off off On fail off On off fail off On On fail On off off fail On off On pass On On off fail On On On fail

Accordingly, as shown in Table 1, the sensors located at the positions where the first I-poles and the second I-poles are located, that is, 31 points and 33 points, are sensed by each pole and operated on, and the screw fastening groove The sensor existing at 32 points for detecting the sensor detects that the core is correctly seated when the sensor is turned off because the sensing operation is not performed.

Therefore, referring to FIG. 7 attached to the configuration of the core direction automatic holding device according to the present invention using the above-described sensor (hereinafter, proximity sensor) as follows.

Figure 7 is a simplified configuration example of the automatic core direction maintenance apparatus according to the present invention, the proximity sensor (41 to 43) existing in the position shown in 31 to 33 of Figure 6, and the core for winding The jig 45, the ball flanger 44 to hold the core seated on the jig 45 does not shake, and the core seated on the jig 45 can be placed in place with the device for the winding operation A stepping motor 46 for rotating the jig 45 and the on / off according to the sensing operation of the proximity sensors 41 to 43 when the core is seated on the jig 45 are detected and passed in Table 1. It is comprised by the control part (not shown) which rotates the said stepping motor 46 until a determination is made.

In this case, when the core is seated on the jig 45, the proximity sensors 41 to 43 are present independently of the jig 45 at the lower portion thereof.

Looking at the preferred operation example of the automatic core direction maintenance apparatus according to the present invention configured as described above are as follows.

First, the core is mounted on the jig 45, and the mounting direction at this time does not need to be considered. Subsequently, although not shown in FIG. 7, the control unit receives a detection signal according to a sensing operation of each of the proximity sensors 41 to 43, and compares it with the mapping state shown in Table 1 to determine suitability. At this time, if the sensing condition meets the pass judgment, since the core is properly seated, the winding operation is performed.

On the other hand, if it is determined that the sensing condition belongs to the failing determination, the control unit rotates the stepping motor 46 by a predetermined angle, and receives the detection signal according to the sensing operation of each of the proximity sensors 41 to 43 again.

While repeatedly performing such a process, the above-described operation is repeatedly performed until it is determined that the sensing condition matches the pass decision in Table 1, thereby properly seating the core.

When providing the core direction automatic holding device according to the present invention that operates as described above, since the work is made manually by the operator at the time of the seating of the core for the conventional winding work, if the work takes a long time and is wrongly judged on the inner peripheral surface of the core It is possible to solve the problem of easily causing a mistake in inserting a key into another groove formed, that is, the screw fastening groove 3.

Claims (2)

Core direction retaining device for accurately seating the core for winding to a core existing only one on the inner circumference when the screw fastening groove is formed in a straight line connecting the center of the I-shaped pole among the poles forming the outer circumference To A proximity sensor provided at the position of the screw fastening groove on the straight line connecting the center of the I-shaped pole and the present position of the I-shaped pole; A jig in which a core for winding is seated; A ball flanger for holding the core seated on the jig so as not to shake; A stepping motor for rotating the jig such that the core seated on the jig can be placed in position with the device for the winding operation; And a control unit which rotates the stepping motor until the acceptance decision is made by detecting on / off according to the sensing operation of the proximity sensor in the state in which the core is seated in the jig. Retaining device. The method of claim 1, And the proximity sensors are independent of the jig when the core is seated on the jig, independently of the jig.

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