JPS616898A - Part mounting device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Field of Application of F Industry-1-J The present invention automatically attaches electronic components etc. to a printed circuit board (S
This relates to a device that can be used.

[Prior art 1] Conventionally, in the above component mounting apparatus, a printed circuit board placed on a flat work board is moved in two directions along the board surface of the printed circuit board (hereinafter referred to as the X-axis direction and the Y direction). By moving the chuck device that holds the component to the digit 1 position of the printed circuit board, the chuck device that holds the component is relatively aligned, and the chuck device is also moved in the H direction perpendicular to the board surface of the printed circuit board ( The parts are removed by raising and lowering them in the TZ-axis direction.

However, in the mounting device of the second method, in order to align the chuck device and the printed circuit board, at least the width of the component insertion area = j direction (X axis) and the
It is necessary to move the printed circuit board over the following strokes (=j method) in the axial direction, and method 11 of the entire device is also required to be more than twice the width of the print board 14b. Problems arise when the overall size of the device increases.

``Objective 1'' The present invention was made in view of the circumstances in item 1-1, and its purpose is to shorten the cutting stroke for moving a printed circuit board as much as possible, thereby reducing the size of a parts removal device. 6 [Means for Solving the Problems 1] In order to solve the above-mentioned problems, the present invention provides a method for placing a printed circuit board along the surface of the work board on which the printed circuit board is placed. A feeding mechanism for linear movement is provided, a moving frame is provided that is movable in a direction parallel to the feeding direction of the feeding mechanism, and the moving frame is provided with a component holding mechanism that is movable in a direction perpendicular to the moving direction of the printed circuit board. It is equipped with a chuck mechanism.

1-Effect 1 The chuck mechanism can be moved in a direction parallel to the moving direction of the M plate, and the positioning in this range can be achieved beyond each stroke. It becomes possible.

"Embodiments" Examples of the present invention will be described below with reference to FIGS. 1 to 4.

In the figure, reference numeral 1 denotes a base, and the base 1 is provided with a conveyor 3 for carrying in a printed circuit board 2 for mounting components from outside the base 1.

Further, a board feeding mechanism 4 is provided on one side of the base 1, and this board feeding mechanism 4 moves the printed circuit board 5 along a flat work board 5 provided on the surface of the base 1-. It has the function of moving in a straight line.

That is, at both ends of the work board 5 there are bearings 6,
6, and a spline shaft 7 is rotatably supported between the bearings 6, 6. The - end of this spline shaft 7 is made to protrude outward in the axial direction of one of the bearings 6, and a pin 8, which is protruded so as to intersect with the spline shaft 7 by 1α, is connected to this protrusion. , a shilling mechanism 9 for reciprocating the spline shaft 7 is connected thereto. Furthermore, two sliding bodies 11 and 12 each having a spline formed on the inner periphery and a protrusion 10 provided on the outer periphery are supported on the spline shaft 7 so as to be movable in the axial direction.

These sliding bodies 11 and 12 are connected at a predetermined interval by a connecting rod 13 fixed to the +iii projection 10.10. Further, each sliding body 11, 12 is provided with a pilot pin j4 so as to protrude in a direction opposite to the projection 10, and this pilot pin 14 is provided with a pilot pin j4 that engages with an engaging hole provided in the printed circuit board 2. At the same time, an engaging portion (not shown) is provided for connecting the sliding body 11 , 12 to the printed circuit board 2 .

Further, a servo motor 15 is provided below the spline shaft 7, and the servo motor 15 rotates a ball screw 16 rotatably supported by one bearing 6.

Further, a ball screw nut 71]7 is screwed into this ball screw 16, and this ball screw nut 17 is connected to a connecting block 1 which is integrated with the sliding body 11.
It is fixed to 8.

- A pair of guide shafts 19 and 20 are provided on the other side of the base 1 in parallel with the spline shaft 7,
This guide shaft 19, 20 is provided with a moving frame 22 that is operated by a reciprocating mechanism 21 and moves in a direction parallel to the feeding direction (X-axis force direction) of the feeding mechanism 4. In the illustrated example, an air cylinder is used as the reciprocating motive f721, but a type 11 system in which the planter is reciprocated by a solenoid may be adopted.

In addition, guide shafts 23 and 24 are provided in the direction perpendicular to the movable frame 22 (this is the inlet brine shaft 71 and the id axis 1! 3120 (X-axis force direction). A main body 25 of a mounting mechanism that moves while holding a component is supported on the shafts 23 and 24 so as to be movable in the axial direction.
: Ball screw 2 installed parallel to L24
6 is rotated by a servo motor 27 to move in the X-axis direction.Furthermore, the main body 25
A cylinder mechanism 28 that operates in the upward [ζh direction (hereinafter referred to as the FZ axis force direction) is installed. !J is removed fτj. And this chuck +j! Horizontal 2 !l is n
A horizontal shaft 31 is provided at the tip of the vertical shaft 30 to be lowered, and a suction chunk 32 is provided so as to be able to rotate 10 times around the horizontal shaft 31. This suction chuck 32 is connected to a negative pressure source (path shown in the figure) such as a vacuum pump so that it can be disconnected (7).
The structure is as follows.

In addition, the reference numeral 3 in the figure is a parts supply device, and this component supply device F (33 is a chunk mechanism in which the stored parts are dropped into 1 through a shooter 34). It has the function of supplying 29.

Next, (i) of the component mounting device configured as described above.
First, a negative pressure is applied to the charging mechanism 29, and the suction chunk 2 is rotated about the horizontal axis 31 to face the lower end of the shooter 34.

(i) In this state, the slider (path shown) at the lower end of the shooters 3 and 1 is opened to allow the component to fall onto the lower blade and be sucked into the suction chuck 32.

(iii) The suction chuck 32 holding the component is rotated to return to its original position (downward position).

(iv) Feed the printed circuit board 2 onto the Jlj table 1'' from the outside, and while moving it by the conveyor 32, place it at a predetermined position (as shown in FIG. 3, with the reciprocating mechanism 21 retracted, C and pudding) JXζX2O
3 core wires).

(v) In this state, operate the cylinder mechanism 9 to rotate the sliding body 1.12 together with the spline shaft 7, thereby engaging the engaging portion at the tip of the pilot pin 14 with the hole in the printed circuit board 2. 1- of work board 5.
I'm going to press it.

(vl) Operate the servo motor 15 to move the sliding body 11.
12 in the X-axis direction, and as shown in FIG. 4, the printed circuit board 2 is positioned on the movement locus 1- of the suction chuck 32.

(vii) Operate the servo motor 15 to move the suction chunk 32 in the Y-axis force direction, and position it two positions above the mounting location of the printed circuit board 2.

(viii) Activate the cylinder mechanism 2) 3. Lower the ζ suction chuck 32 and print the print base! Insert the part into a predetermined position above fy,2.

(ix) The suction force of the suction chuck 32 is cut off, and the cylinder mechanism 28 is operated in the opposite direction to raise the suction chunk 32.

(x) Thereafter, repeat the operations (vi) to ix) to pick up the parts one by one. When going by 1, the mounting of the parts on the right half of the printed circuit board 2 is completed.

(x1) Put the reciprocating mechanism 21 in an extended state as shown by the chain line in Figure 3, move the chuck mechanism 29 to the position shown in Figure 3 aS, and in this state perform the operations in (vi) or x) above. To repeat, remove the parts 1 to the left half of the printed circuit board 2.
) Attachment is completed.

Therefore, in the component mounting device described in Section 2, the stroke of the board feeding mechanism 4 and the width dimension of the entire device are
It is possible to reduce the stroke of the reciprocating mechanism 21. In addition, since the reciprocating mechanism 21 consisting of an air cylinder or the like is adopted as the driving device for moving the chuck mechanism 29 in the X-axis direction, it is more effective than a mechanism using a feeding mechanism consisting of a servo motor and a ball screw. It depends on getting good responsiveness. Therefore, the printed circuit board 2 is moved by the feeding mechanism 4 using the ball screw 16.
movement, and the chuck mechanism 25 by the reciprocating mechanism 21
] By appropriately using the movement of the printed circuit board 2
It is possible to improve the positioning accuracy in the movement of the and the two chunk mechanisms in the X-axis direction, and to speed up the operation.

Note that the two chuck mechanisms that hold the parts to be attached to the printed circuit board 2 are not limited to the type that uses negative pressure to hold the parts as in the above embodiment, but may also be of a type that holds the parts mechanically. ,.

Further, the driving sources of the mechanism for moving the sliding bodies 11, 12 in the X-axis Jj direction and the mechanism for moving the main body 25 of the mounting mechanism in the Y-axis direction are not limited to the servo motor of the above embodiment, but are driven by a predetermined drive source. Of course, other drive sources capable of obtaining a positioning accuracy of 100 mm may also be used.

``Effects of the Invention'' As is clear from the following explanation, the present invention provides a feeding mechanism that linearly moves a printed circuit board along the surface of a workboard, and also provides a feeding mechanism that moves a printed circuit board in a straight line along the surface of a workboard. A movable frame is provided, and a chuck mechanism is mounted on the movable frame so as to be movable in a direction perpendicular to the direction of movement of the printed circuit board. This means that the stroke of the feeding mechanism can be smaller than the width N method of the printed circuit board to which it is attached, and this has the effect that the entire device can be made smaller.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a front view, FIG. 2 is a plan view, and FIGS. 13 and 4 are explanatory diagrams of the operation of attaching parts. 1... Base, 2... Printed circuit board, 4
...Feed mechanism, 5...Work board, 7
...Spline shaft, 11.12...Sliding body, 15...Servo motor, 16...
・Ball screw, 19.20... Guide shaft, 21... Reciprocating mechanism, 22... Moving frame, 23.24... Guide shaft, 26・・・
... Ball screw, 27 ... Servo motor, 29 ... Chuck mechanism, 32 ...
...Adsorption chunk. l Figure 1 Figure 2!

Claims (3)

[Claims] (1) In a component mounting device that attaches components to a predetermined position on a printed circuit board by moving a chuck mechanism that holds the component above the printed circuit board, the work board is placed on the work board on which the printed circuit board is placed. A feeding mechanism is provided for linearly moving the printed circuit board along the surface of the printed circuit board, and a moving frame is provided that is operated by a reciprocating mechanism to move the printed circuit board in a direction parallel to the feeding direction of the feeding mechanism. A component mounting device characterized in that the chuck mechanism is mounted so as to be movable in a direction perpendicular to the direction of movement of the substrate. (2) The component mounting device according to claim 1, wherein the reciprocating mechanism comprises an air cylinder. (3) The component mounting device according to claim 1, wherein the reciprocating mechanism includes a solenoid that reciprocates and a plunger operated by the solenoid.