JPH0637485A - Parts mounter - Google Patents

Abstract

PURPOSE:To provide a part mounter which stabilizes the holding in rotating direction of a suction nozzle and improves the accuracy in mounting. CONSTITUTION:In a groove 23 to serve a rotation stop, it contacts with a sphere 23, at the edge P1, thus it becomes a fixed end to the direction of rotation, while cut grooves 25 and 28 contact with spheres 26 and 29, at the points P2 and P3, thus it gives rotational moment to a suction nozzle 5, and the groove 22 to serve as a rotation stop works as a rotation stop for one-way regulation, and no matter which direction the mounting direction is and moment adds in, the accuracy in mounting is secured, and the quality of mounting is guaranteed, and the quantity of mounting is raised.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component mounting apparatus for mounting electronic components on an electronic circuit board.

[0002]

2. Description of the Related Art In recent years, electronic parts have been required to be accurately mounted in all directions.

Hereinafter, an example of a conventional electronic component mounting apparatus will be described with reference to the drawings with reference to FIGS.

In FIG. 5, reference numeral 63 denotes an XY robot, and a suction nozzle 66 sucks an electronic component 67 and a rotary motor 65 rotationally positions it to mount the electronic component 67 at an arbitrary position.
Reference numeral 62 is a recognition camera for measuring the position of the sucked electronic component 67. In FIG. 6, reference numeral 65 is a rotary motor for rotational positioning, 40 is its shaft, and a clamper 41 holding a suction nozzle 66 is attached to the clamper 41. The clamper 41 holds a ball 42 holding the suction nozzle 66 and urges it. There is a spring 43 for turning on and a ring 44 for stopping this, and a spring 47 for urging the suction nozzle 66 downward is provided on the shaft 40.
And in the space 46 of the suction nozzle 66.

FIG. 7 is a sectional view taken along the line BB 'of FIG. 6, in which the notch grooves 48, 51, 54 of the suction nozzle 66 are shown.
Spheres 49, 52, 55 are springs 50, 53,
It is urged at 56 and stopped at the ring 44.

Next, the operation of the component mounting apparatus will be described. In FIG. 5, the suction nozzle 66 that has sucked the electronic component 67 moves onto the recognition camera 62 by the XY robot 63, and the recognition camera 62 measures the position of the electronic component 67 that is sucked by the suction nozzle 66 and causes the rotation motor 65 to move. Is rotated and the position is corrected. After the position correction, the electronic component 67 is mounted on the printed board 68.

[0007]

In the above configuration,
The suction nozzle 66 and the electronic component 67 receive a rotational moment when the rotational position is corrected, and the XY robot 63 moves to receive the same rotational moment. However, in the above configuration, as shown in FIG. 7, the balls 49, 52, 55 contact the suction nozzle 66 at points N1, N2, N3.
With this, the moment with respect to the rotation direction of the suction nozzle 66 is uniform in the three directions, and there is substantially no effect of generating the rotation holding force. That is, in the modeled FIG.
The force applied to 9 is balanced by the springs 57 and 58, and the frictional force μ is further applied, but its position is not fixed, and if it is swayed to the left or right, it will be displaced. Therefore, in this method, the mounting accuracy cannot be determined when a rotational moment is applied during the mounting operation. In order to stabilize the weight 59, as shown in FIG.
It is desirable that the spring 60 unidirectionally regulate the force to 0 and urge it.

The present invention solves the above problems, and an object of the present invention is to provide a component mounting apparatus which stabilizes the suction nozzle for sucking an electronic component and improves the mounting accuracy.

[0009]

In order to achieve the above object, in the component mounting apparatus of the present invention, a suction nozzle provided in a head portion sucks an electronic component from a component supply unit and mounts it on a printed circuit board. In the mounting device, the suction nozzle is removable, and the head portion is arranged on the outer peripheral portion of the suction nozzle so that the sphere comes into contact with the side surface of the suction nozzle by the biasing spring. It has one groove for holding the suction nozzle and for stopping rotation of the suction nozzle, and one or more notched grooves for receiving the rotation moment.

[0010]

With this structure, the sphere is arranged on the outer peripheral portion of the suction nozzle by the biasing spring so that the sphere comes into contact with the side surface of the suction nozzle. Has one groove and one or more notched grooves that receive the rotation moment.The one groove serves as a fixed end in the rotation direction, and the other one or more notched grooves By receiving the rotational moment, the one groove acts as a rotation stop as one-way regulation, and the suction nozzle is not displaced.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A component mounting apparatus according to an embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, 1 is a printed circuit board, 2 is a table section for loading / unloading and holding the printed circuit board 1, 3 is a part supply section for supplying electronic parts 6, 4 is an XY robot, and a head section 100 is provided. The suction nozzle 5 and the rotation motor 10 provided are positioned at arbitrary positions. Reference numeral 11 is a recognition camera for measuring the position of the sucked electronic component 6, 8 is a nozzle station on which a suction nozzle 9 to be used next is mounted, and 7 is a controller of the entire apparatus.

In FIG. 2, reference numeral 35 denotes a shaft of the rotary motor 10, which is a nozzle clamper 1 for holding the suction nozzle 5.
2 is attached to the nozzle clamper 12, and a ball 23 that holds the suction nozzle 5 and a spring 2 that biases the ball 23.
4 and a ring 13 for stopping this, a spring 38 for urging the suction nozzle 5 downward is provided in the space 35 above the shaft 35 and the suction nozzle 5. 16 is a slot of the nozzle station 8 into which the suction nozzle 5 enters,
The sensor 17 detects it. Reference numerals 18 and 19 denote clamp levers that hold the suction nozzle 5 when the suction nozzle 5 is removed, and are opened and closed at fulcrums 20 and 21.

FIG. 3 is a sectional view taken along the line AA 'of FIG. 2, in which the nozzle clamper 12 is provided with biasing springs 24 and 2.
The spheres 23, 26, 29 urged by 7, 30 are arranged on the outer peripheral portion of the suction nozzle 5 so as to contact the side surface of the suction nozzle 5, and the spheres 23, 26,
29, and the suction nozzle 5 is provided with a groove 22 for holding the suction nozzle 5 and stopping rotation, and notched grooves 25 and 28 for receiving a rotation moment. The ring 13 has heat springs 24, 27, 30. Has stopped.

Next, the operation of the component mounting apparatus will be described. 1 and 2, the XY robot 4 moves the rotary motor 10 and the nozzle clamper 12 onto the nozzle station 8, and the rotary motor 10 and the nozzle clamper are placed in the slot 16 where the sensor 17 determines that there is no suction nozzle. 12 is lowered and the suction nozzle is housed and sensor 1
After confirming the suction nozzle at 7, clamp levers 18, 19
To close the rotary motor 10 and the nozzle clamper 12 to separate the suction nozzle. Here, the inner diameter of the space 37 and the outer shape of the biasing spring 38 are large with respect to the outer diameter of the suction nozzle 5, and the biasing spring 38 does not pop out. Next, when moving to the slot 16 having the suction nozzle to be used and lowering the rotary motor 10 and the nozzle clamper 12, the ball 23 enters the notch groove 22 of the suction nozzle 5 so as not to fall off the biasing spring 38. Has become. In this state, the clamp levers 18 and 19 are opened to raise the rotary motor 10 and the nozzle clamper 12. Here, the sensor 17
It is judged that there is no suction nozzle, and the suction nozzle replacement is completed,
Enter the device operation.

The printed circuit board 1 is carried in by the table portion 2 and held at the mounting position of electronic parts. The suction nozzle 5 that has sucked the electronic component 6 moves onto the recognition camera 11 by the XY robot 4, the recognition camera 11 measures the position of the electronic component 6 that has been sucked by the suction nozzle 5, and is rotated by the rotary motor 10. The position is corrected. After the position correction, the electronic component 6 is mounted on the printed board 1. The printed board 1 on which the apparatus is finished is carried out by the table section 2.
The above sequence is controlled by the controller 7.

In the above structure, the suction nozzle 5 and the electronic component 6 receive a rotation moment when the rotation position is corrected,
Further, the XY robot 4 moves and receives a similar rotational moment. In FIG. 3, notch grooves 22 and 25, 28 are provided here. 22 is in contact with the sphere 23 at the edge portion P1 of the cutout groove and becomes a fixed end in the rotational direction. On the other hand, the other notch grooves 25, 28 are balls 26, 2
9 comes into contact with each other at points P2 and P3 and gives a rotation moment to the suction nozzle 5. When this is modeled in FIG. 4, the spring 33 works for fixing to the weight 34, and the springs 31, 3
2 will act as a one-way train. Therefore, as shown in the model of FIG.
The weight 61 does not move even if it is urged to 0 by the spring 60 and swayed to the left or right. That is, in the nozzle clamper mechanism of the present invention, the position does not shift even if a rotational moment is applied to the suction nozzle during the mounting operation.

[0018]

As is apparent from the above description of the embodiments, according to the component mounting apparatus of the present invention, the suction nozzle and the electronic component receive the rotational moment when the rotational position is corrected, and the XY robot moves the same. Even if it receives a rotation moment, one part of the contact of the notch groove provided on the suction nozzle becomes the fixed end in the rotation direction, and the other notch groove receives the rotation moment and acts as a one-way set stop for rotation. There is no displacement of the suction nozzle,
The positioning accuracy is guaranteed regardless of the mounting direction, which has the effect of improving the mounting quality.

[Brief description of drawings]

FIG. 1 is a perspective view showing a schematic configuration of a component mounting apparatus according to an embodiment of the present invention.

FIG. 2 is a vertical cross-sectional view showing a configuration of the nozzle and a nozzle station section.

FIG. 3 is a horizontal sectional view showing a detailed configuration of the nozzle clamper section.

FIG. 4 is a schematic view for explaining the operation of the nozzle clamper part by modeling it.

FIG. 5 is a perspective view showing a schematic configuration of a conventional component mounting apparatus.

FIG. 6 is a vertical sectional view showing details of the nozzle clamper portion.

FIG. 7 is a horizontal sectional view showing details of the nozzle clamper portion.

FIG. 8 is a schematic view for explaining the operation of the nozzle clamper part by modeling it.

FIG. 9 is a schematic view for explaining a modeled operation of an ideal nozzle clamper section.

[Explanation of symbols]

 1 Printed Circuit Board 3 Component Supply Section 5 Adsorption Nozzle 6 Electronic Component 12 Nozzle Clamper 22 Groove to Stop Rotation 25, 28 Notch Groove 23, 26, 29 Ball 24, 27, 30 Energizing Spring 100 Head Section

Front page continuation (72) Inventor Ya Hirai, 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (1)

[Claims] 1. A component mounting apparatus for mounting an electronic component on a printed circuit board by a suction nozzle provided on a head portion for sucking an electronic component from the component supply portion, wherein the suction nozzle is detachable. The sphere is arranged on the outer circumference of the suction nozzle so that the sphere comes into contact with the side surface of the suction nozzle by a biasing spring, and the sphere enters the side surface of the suction nozzle, and the suction nozzle holds and rotates the suction nozzle. A component mounting device that has a groove in one place and a cutout groove in one or more places that receives a rotation moment.