KR101190870B1 - Chip Mounter and Method for Mounting Chip - Google Patents

Abstract

The component mounting method of the component mounter of the present invention comprises the steps of aligning the N head spindle; N feeders supplying parts; Recognizing, by a coordinate recognizing unit, the coordinates of the part supplied by the feeder; Determining whether the coordinate measured by the coordinate recognizing unit coincides with the reference coordinate (ideal coordinate); As a result of the determination, when the coordinates measured by the coordinate recognition unit and the reference coordinate do not coincide with each other, the feeder is adjusted in the Y-axis direction by a difference between the coordinate measured by the coordinate recognition unit and the reference coordinate. Compensating the coordinates of and compensating the coordinates of the part by adjusting the head spindle in the X-axis direction by a difference between the coordinates measured by the coordinate recognition unit and the reference coordinates; When the coordinates measured by the coordinate recognition unit and the reference coordinate coincide with each other, the nozzle of the head spindle simultaneously picking up the parts; The head spindle moving the component to a mounting position on a printed circuit board; And mounting, by the head spindle, the component on the printed circuit board.

Coordinates, Compensation, X-Axis, Y-Axis, Feeder, Head Spindle

Description

Component mounter and its mounting method {Chip Mounter and Method for Mounting Chip}

The present invention relates to a component mounter, and more particularly, in a gang type pickup head structure, by compensating a coordinate (position) of a component by a difference between the coordinates of the component predicted by sprocket or pocket recognition, etc., with respect to the ideal coordinate of the component. The present invention relates to a component mounter capable of simultaneously picking up a component at all times and a component mounting method of the component mounter.

In general, a component mounter is a core equipment of a component mounting assembly device for mounting a component on a printed circuit board. The component mounter receives various parts from a feeder (part feeder), transfers them to the mounting position of the printed circuit board, and then mounts them on the printed circuit board. Equipment.

The order of mounting parts of a general component mounting machine is as follows.

First, the printed circuit board is moved to the mounting position of the component mounter by using a conveyor. Then, the pickup head of the component mounter is moved to the pickup position of the feeder.

Second, a vacuum is formed in the nozzle by using the vacuum generator attached to the pickup head. At this time, the degree of vacuum is adjusted using the valve of the vacuum generator. The pickup head is then moved vertically downward to adsorb the feeder's components to the nozzle using the vacuum already formed.

Third, the parts adsorbed by the nozzle are recognized by the vision system, and the position and rotation angle of the parts are moved to the mounting position on the printed circuit board by using the servo motor.

Fourth, by placing the parts arriving at the mounting position on the printed circuit board and releasing the vacuum, the parts are mounted on the printed circuit board.

The pick-up head of the component mounter can be divided into a single type and a gang type.

The gang type pickup head has a structure in which a plurality of head spindles are linearly spaced at regular intervals by an integer multiple of the feeder, thereby increasing productivity by simultaneously picking up a plurality of parts.

1 is a perspective view showing a conventional gang type component mounter.

Referring to FIG. 1, a conventional gang type component mounter 10 includes a feeder 11 for supplying a component 1, a bayer part (not shown) for conveying a printed circuit board to be worked on, and a feeder 11. It consists of a pickup head 13 which picks up the component 1 one by one and mounts it on a printed circuit board. The pickup head 13 is composed of a plurality of head spindles 15.

The feeder 11 sequentially supplies the parts 1 inserted into the tape pockets by one pitch so that the head spindle 15 can pick up the parts 1 while removing the tape cover.

However, a minute component such as 0603/0402 is not always supplied at a predetermined position in the X-axis and Y-axis directions due to the separation between feeders and vibration / movement in the tape pocket for packaging the part.

Therefore, in the conventional gang type component mounter, there is often a problem that the head spindle picks up the edge of the component, which causes a pickup failure and eventually does not perform 100% simultaneous pickup.

In the conventional gang type component mounter, a technique of predicting a reference coordinate (ideal coordinate or center coordinate) of a part through sprocket or tape pocket recognition, etc., to reduce pick-up defects, and then picking up a part to reduce the defect However, if the difference between the predicted distance between the parts and the head spindle spacing is outside the allowable range, there is a problem in that the productivity cannot be reduced because simultaneous pickup cannot be performed.

The present invention has been devised to solve the above-described problems, and in the gang type pickup head structure, by compensating the coordinates (positions) of the parts by the difference between the coordinates of the parts predicted by sprocket or pocket recognition, etc. It is an object of the present invention to provide a component mounter capable of always picking up parts at the same time and a method of mounting the components of the component mounter.

In order to achieve the above object, a gang type component mounter according to an embodiment of the present invention includes a plurality of feeders for supplying components; A plurality of head spindles which pick up the components provided from the feeder and mount them on a printed circuit board; A coordinate recognition unit recognizing the coordinates of the part supplied by the feeder; A Y-axis direction coordinate compensation unit for compensating the position of the component in the Y-axis direction by a difference between the coordinates by the coordinate recognition unit and the reference coordinate; And an X-axis direction coordinate compensation unit configured to compensate the position of the component in the X-axis direction by a difference between the coordinates by the coordinate recognition unit and the reference coordinate, wherein the Y-axis direction coordinate compensation unit is connected to the feeder, The X axis direction coordinate compensation unit is connected to the head spindle.

The Y-axis direction is a direction in which the feeder supplies parts, the X-axis direction is a direction orthogonal to the Y-axis direction, and defines a direction in which the head spindle picks up the Z-axis direction.

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Gang type component mounter according to another embodiment of the present invention a plurality of feeders for supplying parts; A plurality of head spindles which pick up the components provided from the feeder and mount them on a printed circuit board; A coordinate recognition unit recognizing the coordinates of the part supplied by the feeder; A Y-axis direction coordinate compensation unit for compensating the position of the component in the Y-axis direction by a difference between the coordinates by the coordinate recognition unit and the reference coordinate; And an X axis direction coordinate compensation unit for compensating the position of the component in the X axis direction by a difference between the coordinates by the coordinate recognition unit and the reference coordinate, and the Y axis direction compensation unit is connected to one side of the feeder, , X-axis coordinate compensation unit is connected to the other side of the feeder.

On the other hand, the component mounting method of the gang type component mounter according to an embodiment of the present invention comprises the steps of aligning the N head spindle; N feeders supplying parts; Recognizing, by a coordinate recognizing unit, the coordinates of the part supplied by the feeder; Determining whether the coordinate measured by the coordinate recognizing unit coincides with the reference coordinate (ideal coordinate); As a result of the determination, when the coordinates measured by the coordinate recognition unit and the reference coordinate do not coincide, the feeder is adjusted in the Y-axis direction by a difference value between the coordinate measured by the coordinate recognition unit and the reference coordinate. Compensating the coordinates of the component, and compensating the coordinates of the component by adjusting the head spindle in the X-axis direction by a difference value between the coordinate measured by the coordinate recognition unit and the reference coordinate; When the coordinates measured by the coordinate recognition unit and the reference coordinate coincide with each other, the nozzle of the head spindle simultaneously picking up the parts; The head spindle moving the component to a mounting position on a printed circuit board; And mounting, by the head spindle, the component on the printed circuit board.

According to another embodiment of the present invention, a component mounting method of a gang type component mounter includes aligning N head spindles; N feeders supplying parts; Recognizing, by a coordinate recognizing unit, the coordinates of the part supplied by the feeder; Determining whether the coordinate measured by the coordinate recognizing unit coincides with the reference coordinate (ideal coordinate); As a result of the determination, when the coordinates measured by the coordinate recognition unit and the reference coordinate do not match, the head in the Y-axis direction and the X-axis direction by the difference value between the coordinates measured by the coordinate recognition unit and the reference coordinate. Adjusting a spindle to compensate for the coordinates of the part; When the coordinates measured by the coordinate recognition unit and the reference coordinate coincide with each other, the nozzle of the head spindle simultaneously picking up the parts; The head spindle moving the component to a mounting position on a printed circuit board; And mounting, by the head spindle, the component on the printed circuit board.

As described above, according to the present invention, in the gang type pickup head structure, the parts are always simultaneously picked up by compensating the coordinates of the parts by the difference between the coordinates of the parts predicted by sprocket or pocket recognition, etc., relative to the ideal coordinates of the parts. Can be. For example, the head spindle can be configured to move on the X-axis, and each feeder can be fine-tuned on the Y-axis. By using the X-axis of the low head spindle and the Y-axis of the feeder as the reference coordinates, the position of the parts can be automatically moved to simultaneously pick up the parts, thereby improving the simultaneous pick-up rate to satisfy both high productivity and low failure rate.

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

2 is a perspective view showing a gang type component mounter according to an embodiment of the present invention.

2, the gang type component mounter 100 according to an embodiment of the present invention includes a plurality of feeders 110 for supplying the component (1); A plurality of head spindles (120) for picking up the component (1) provided from the feeder (110) and mounting it on a printed circuit board; A coordinate recognition unit (not shown) for recognizing the coordinates of the component 1 supplied by the feeder 110; A Y-axis direction coordinate compensation unit 140 which compensates the position of the component 1 in the Y-axis direction by a difference value between the coordinates by the coordinate recognition unit and the reference coordinate; And an X-axis direction coordinate compensation unit 150 for compensating the position of the component in the X-axis direction by a difference value between the coordinates by the coordinate recognition unit 130 and the reference coordinate.

In the gang type component mounter 100 according to an embodiment of the present invention, the Y-axis direction compensation is performed by the Y-axis direction coordinate compensation unit 140 connected to the feeder 110, and the X-axis direction compensation is performed by the head spindle ( It is performed by the X-axis direction coordinate compensation unit 150 connected to 120.

 Here, the coordinate recognition unit is a device for predicting abnormal coordinates of a part through sprocket or pocket recognition, and the like, and thus a detailed description thereof will be omitted below.

The Y-axis direction is a direction in which the feeder 110 supplies the component 1, the X-axis direction is a direction orthogonal to the Y-axis direction, and the direction in which the head spindle 120 picks up the Z-axis direction. It is defined as

The Y-axis direction coordinate compensation unit 140 may be connected to each feeder 110, and the X-axis direction coordinate compensation unit 150 may be connected to each head spindle 120.

3 is a perspective view of a gang type component mounter according to another embodiment of the present invention.

Referring to FIG. 3, the gang type component mounter 200 according to another embodiment of the present invention includes a plurality of feeders 210 for supplying a component 1; A plurality of head spindles 220 which pick up the component 1 provided from the feeder 210 and mount it on a printed circuit board; A coordinate recognition unit (not shown) for recognizing the coordinates of the component 1 supplied by the feeder 210; A Y-axis direction coordinate compensation unit 240 for compensating the position of the component in the Y-axis direction by a difference value between the coordinate by the coordinate recognition unit and the reference coordinate; And an X-axis direction coordinate compensation unit 250 for compensating the position of the component in the X-axis direction by a difference between the coordinates by the coordinate recognition unit and the reference coordinate.

In the gang type component mounter 200 according to another embodiment of the present invention, the Y-axis direction compensation and the X-axis direction compensation are coupled to the Y-axis direction coordinate compensation unit 240 and the X-axis direction coordinates connected to the head spindle 220. Performed by unit 250.

The Y-axis direction is a direction in which the feeder 210 supplies the component 1, the X-axis direction is a direction orthogonal to the Y-axis direction, and the Z-axis is a direction in which the head spindle 220 picks up. Define in the direction.

The Y-axis direction coordinate compensation unit 240 may be connected to one side of each feeder 210, the X-axis direction coordinate compensation unit 250 may be connected to the other side of each feeder 210.

On the other hand, Figure 4 is a flow chart showing a component mounting method of the gang type component mounting machine according to an embodiment of the present invention.

The component mounting method of the gang type component mounter according to an embodiment of the present invention is a case of using an electric feeder, by adjusting the feeder's motor to compensate the coordinates in the Y-axis direction, by adjusting the head spindle coordinates in the X-axis direction To compensate.

4, the component mounting method of the gang type component mounter according to an embodiment of the present invention comprises the steps of aligning the N head spindle (S110); N feeders supplying parts (S120); Recognizing the coordinates of the part supplied by the feeder by the coordinate recognition unit (S130); Determining whether the coordinate measured by the coordinate recognizing unit and the reference coordinate (ideal coordinate) coincide (S140); As a result of the determination, when the coordinates measured by the coordinate recognition unit and the reference coordinate do not coincide, the feeder is adjusted in the Y-axis direction by a difference value between the coordinate measured by the coordinate recognition unit and the reference coordinate. Compensating the coordinates of the component and compensating the coordinates of the component by adjusting the head spindle in the X-axis direction by a difference value between the coordinate measured by the coordinate recognition unit and the reference coordinate (S150); When the coordinates measured by the coordinate recognizing unit and the reference coordinate coincide, the nozzles of the head spindle simultaneously pick up the parts (S160); Moving, by the head spindle, the component to a mounting position on the printed circuit board (S170); And mounting, by the head spindle, the component on the printed circuit board (S180). In step S150, position compensation of up to N parts is repeatedly performed.

On the other hand, Figure 5 is a flow chart showing a component mounting method of the gang type component mounting machine according to another embodiment of the present invention.

The component mounting method of the gang type component mounter according to another embodiment of the present invention is a case of using a cylindrical feeder, and is a method of compensating coordinates in the X-axis direction and the Y-axis direction of the head spindle.

Referring to FIG. 5, the component mounting method of the gang type component mounter according to another embodiment of the present disclosure includes aligning N head spindles (S210); N feeders supplying parts (S220); Recognizing the coordinates of the part supplied by the feeder by the coordinate recognition unit (S230); Determining whether the coordinate measured by the coordinate recognizing unit and the reference coordinate (ideal coordinate) coincide (S240); As a result of the determination, when the coordinate measured by the coordinate recognition unit and the reference coordinate do not coincide, the head spindle in the Y-axis direction and the X-axis direction by the difference between the coordinate measured by the coordinate recognition unit and the reference coordinate. Compensating for the coordinates of the part (S250); When the coordinates measured by the coordinate recognizing unit and the reference coordinate coincide with each other, the nozzles of the head spindle simultaneously pick up the parts (S260); Moving, by the head spindle, the component to a mounting position on the printed circuit board (S270); And mounting the component on the printed circuit board by the head spindle (S280). In the step S250, position compensation of up to N parts is repeatedly performed.

As described above, in the detailed description of the present invention has been described with respect to preferred embodiments of the present invention, those skilled in the art to which the present invention pertains various modifications can be made without departing from the scope of the present invention Of course.

Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the claims below, but also by the equivalents of the claims.

1 is a perspective view showing a conventional gang type component mounter

Figure 2 is a perspective view showing a gang type component mounter according to an embodiment of the present invention

3 is a perspective view showing a gang type component mounter according to another embodiment of the present invention

4 is a flowchart illustrating a component mounting method according to an embodiment of the present invention.

5 is a flowchart illustrating a component mounting method according to another embodiment of the present invention.

* Description of main parts

1: parts

110: feeder

120: head spindle

140: Y-axis coordinate compensation unit

150: X-axis coordinate compensation unit

210: feeder

220: head spindle

240: Y axis coordinate compensation unit

250: X-axis coordinate compensation unit

Claims (6)

A plurality of feeders for supplying parts; A plurality of head spindles which pick up the components provided from the feeder and mount them on a printed circuit board; A coordinate recognition unit recognizing the coordinates of the part supplied by the feeder; A Y-axis direction coordinate compensation unit for compensating the position of the component in the Y-axis direction by a difference between the coordinates by the coordinate recognition unit and the reference coordinate; And And an X axis direction coordinate compensation unit configured to compensate the position of the component in the X axis direction by a difference between the coordinates by the coordinate recognition unit and the reference coordinate. And the Y-axis direction coordinate compensation unit is connected to the feeder, and the X-axis direction coordinate compensation unit is connected to the head spindle. The method of claim 1, And the Y axis direction is a direction in which the feeder supplies parts, the X axis direction is a direction orthogonal to the Y axis direction, and the direction in which the head spindle picks up is a Z axis direction. delete A plurality of feeders for supplying parts; A plurality of head spindles which pick up the components provided from the feeder and mount them on a printed circuit board; A coordinate recognition unit recognizing the coordinates of the part supplied by the feeder; A Y-axis direction coordinate compensation unit for compensating the position of the component in the Y-axis direction by a difference between the coordinates by the coordinate recognition unit and the reference coordinate; And And an X axis direction coordinate compensation unit configured to compensate the position of the component in the X axis direction by a difference between the coordinates by the coordinate recognition unit and the reference coordinate. And the Y-axis direction coordinate compensation unit is connected to one side of the feeder, and the X-axis direction coordinate compensation unit is connected to the other side of the feeder. Aligning the N head spindles; N feeders supplying parts; Recognizing, by a coordinate recognizing unit, the coordinates of the part supplied by the feeder; Determining whether the coordinate measured by the coordinate recognizing unit coincides with the reference coordinate (ideal coordinate); As a result of the determination, when the coordinates measured by the coordinate recognition unit and the reference coordinate do not coincide with each other, the feeder is adjusted in the Y-axis direction by a difference between the coordinate measured by the coordinate recognition unit and the reference coordinate. To compensate for the Compensating the coordinates of the part by adjusting the head spindle in the X-axis direction by a difference between the coordinates measured by the coordinate recognition unit and the reference coordinate; When the coordinates measured by the coordinate recognition unit and the reference coordinate coincide with each other, the nozzle of the head spindle simultaneously picking up the parts; The head spindle moving the component to a mounting position on a printed circuit board; And And the head spindle mounting the component on the printed circuit board. Aligning the N head spindles; N feeders supplying parts; Recognizing, by a coordinate recognizing unit, the coordinates of the part supplied by the feeder; Determining whether the coordinate measured by the coordinate recognizing unit coincides with the reference coordinate (ideal coordinate); As a result of the determination, when the coordinates measured by the coordinate recognition unit and the reference coordinate do not match, the head spindle in the Y-axis direction and the X-axis direction by the difference between the coordinates measured by the coordinate recognition unit and the reference coordinate. Compensating for the coordinates of the part; When the coordinates measured by the coordinate recognition unit and the reference coordinate coincide with each other, the nozzle of the head spindle simultaneously picking up the parts; The head spindle moving the component to a mounting position on a printed circuit board; And And the head spindle mounting the component on the printed circuit board.

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