JPH0659000B2 - Electronic component mounting device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is capable of chucking an electronic component having a complicated shape while positioning it, and inserting it into a component already inserted on a printed circuit board at a minimum adjacent pitch. The present invention relates to an electronic component mounting device.

Configuration of Conventional Example and Problems There are many insertion points for high-density mounting of electronic parts, and it is basic to mount small and thin parts. Therefore, a part having a complicated shape such as the connector described as the embodiment of the present invention and having a relatively small number of insertion points is subjected to the insertion step later. For this reason, the chuck for inserting them must be accurately positioned in terms of insertion reliability and accurately pinched, and the dead space due to the chuck must be minimized.

On the other hand, there are various shapes of connector parts as shown in FIGS. 1A, 1B, 1C, and 1, 3 and 5 in FIG. 1 are connector terminals, 2 is a connector body, and 4 is a box connector body. , 6 are the bodies of the connectors with side walls. Conventional chucks include a pair of left and right parallel chucks shown in FIGS. 2 to 5 and a vacuum suction chuck shown in FIGS. 6 to 9. First, the parallel chuck will be described.
As shown in FIGS. 2 to 5, the connector is clamped by a pair of left and right parallel displacement chucks 7 and 8. 9 is a piston connected to a drive cylinder (not shown),
Reference numerals 0 and 11 are arms connected to the tip of the piston by a pin 12, and reference numerals 13 and 14 are slide blocks connected to the other ends of the arms by pins 15 and 16. The chucks 7 and 8 are removably attached to the lower surface of the slide block, and are opened and closed in the left-right direction by the vertical movement of the piston 9,
Hold the parts. Note that the chuck 7 is provided with a saw-tooth-shaped position regulating groove corresponding to the arrangement pitch of the terminals 18 of the connector 17, and plays a role of determining the position so as not to shift when the parts are clamped. There is. However, in such a structure, as shown by the imaginary line when the chuck is opened,
The width becomes wider than the maximum width W of the component, the dead space becomes large, and there is a body 6 having a side wall in the immediate vicinity in parallel with the component terminal row as in the component of FIG. 1b, or like the component of C. In addition, when the body of the connector is a box type 4, there is a drawback that the parts cannot be held.

Further, as a second example of the prior art, as shown in FIGS. 6 to 9, the chuck is a vacuum suction type chuck, and the dead space is taken into consideration. The chuck tip 19 is connected to the terminal 20 of the connector.
Corresponding to, a long and narrow hole 2 that is machined larger than the terminal diameter
Have one. These terminal holes become a single exhaust hole 22 connected thereabove, and a joint 23 is provided for refracting 90 ° and connecting to a vacuum suction device. A valve of a vacuum device (not shown) connected to the joint 23 is opened, air inside the chuck is evacuated through the exhaust hole 22, the terminal hole 21 is brought into a state close to vacuum, and the connector 24 is attracted to the chuck head. Is. However, in this structure, if the suction surface is uneven or dust is attached, an unstable element remains in the suction, and as the shape of the part becomes larger and the number of terminals increases, the part can be accurately leveled horizontally. It had a drawback that it could not be adsorbed. Further, when the lower terminal of the connector 24 is clinched, the upper component terminal 20 is bent at the same time, which may cause a defect when the component is inserted into the connector in a later step.

From these two conventional examples, it has been desired to develop a chuck that can minimize the dead space and can cope with the unevenness of the component suction surface and the enlargement of the shape.

An object of the present invention is to solve the above-mentioned drawbacks, and to provide a chuck which can reduce dead space and can cope with an increase in size and complexity of parts.

According to the electronic component mounting apparatus of the present invention, a guide having terminal fitting holes equal to a multiple of the pitch between the electronic component terminals and a block are held so as to be parallel to the guide by sliding of a piston rod. A movable chuck, and after fitting the terminal of the electronic component so as to penetrate through the terminal fitting hole from a vertical direction to position the terminal of the component, place the chuck on the substrate surface. And the terminal of the electronic component in a state of being regulated by the fitting hole of the guide is sandwiched between the inner surface of the fitting hole and the chuck.

Description of Embodiments An embodiment of the device of the present invention will be described with reference to FIGS. Reference numeral 25 is a piston rod which is interlocked with a drive cylinder (not shown), 26 is an arm connected to the tip by a pin 27, and 28 is a pin 29 at the other end of the arm.
It is a slide block connected by. Reference numeral 30 is a guide block for guiding the slide block, and 31 is a frame which serves as the main body of the chuck. 32 is a holder which is positioned (fixed) by a pin 33 which is press-fitted into the frame and is attached. Reference numeral 34 is a guide having a position adjusting hole which is arranged at the lower portion of the holder and is provided so as to match with the positioning reference portion of the connector. FIG. 14 is a perspective view thereof. A chuck 35 is detachably attached to the lower surface of the slide block 28. 36 is a compression spring that pushes up the piston rod 25, and 37 is a positioning pin for attaching the chuck portion to the head drive portion 38.
Reference numeral 39 is a body of the connector part, and 40 is a terminal of the same part.

Next, the operation will be described. As shown in FIGS. 10 to 13, the head drive unit 38 descends with the piston rod 25 in the state of the alternate long and short dash line (the chuck 35 is open at this time), and the guide 34 moves in the front-rear and left-right directions of the terminal 40 of the connector. Position. (At this time, the guide is not in contact with the body 39 of the connector.) Next, as the drive cylinder (not shown) in the head drive unit 38 descends, the piston rod 25 descends, and the arm 26 is inserted via the pin 27. Swings, and the slide block 28 moves leftward along the guide block 30 via the pin 29. Then, the chuck 35 fixed to the slide block similarly moves to the left, and the terminal 40 of the connector component is sandwiched between the chuck 35 and the hole of the guide 34.

In the device with the above-mentioned configuration, the position of the connector component terminal is regulated by the fixed guide, and the component terminal is sandwiched by the chuck that opens and closes in parallel with this guide on one side. It is also possible to chuck the connector, and it is possible to reliably grip even a component that could not be accurately chucked by the vacuum suction type due to the enlargement of the shape of the component or the unevenness of the connector suction surface. Although the connector has been described in the embodiment, it can be applied to other parts having complicated shapes.

Advantageous Effects of Invention The electronic component mounting apparatus of the present invention allows a guide provided with terminal fitting holes equal to a multiple of the pitch between component terminals to pass through in a direction perpendicular to the terminals of the electronic component, and after positioning the component terminals, The chuck, which is positioned parallel to the guide and is held by the block by sliding the piston rod, is moved in parallel to the substrate surface, and the terminals of the electronic components that are regulated by the penetration of the guide are connected to the front face of the guide and the chuck. By sandwiching between parts, even parts with one side wall, parts with irregularities on the part suction surface, or parts that could not be pinched accurately by the suction type due to the enlargement of the part shape In order to regulate and surely clamp the parts, the effect of clamping parts having a complicated shape is great.

BRIEF DESCRIPTION OF THE DRAWINGS FIGS. 1a, b, c are perspective views of various connectors, FIG. 2 is a front view of a conventional double-sided parallel chuck, FIG. 3 is a side view of the same, and FIG. 4 is a chuck. Detailed view of holding parts at the tip,
FIG. 5 is a sectional view showing the shape of the terminal regulating portion of the chuck, FIG. 6 is a front view of a conventional vacuum suction chuck, FIG. 7 is a side view of the same, and FIGS. 8 and 9 are component chucks. FIG. 10 is a front view of a chuck according to an embodiment of the present invention, FIG. 11 is a side view of the same, and FIGS. 12 and 13 are detailed views showing a chucking state of parts. The figure is a perspective view of a guide in one embodiment of the present invention. 25 ... Piston rod, 26 ... Arm, 27, 2
9, 33, 37 ... Pin, 28 ... Slide block,
30 ... Guide block, 31 ... Frame, 32 ...
Holder, 34 ... Guide, 35 ... Chuck, 36 ...
… A compression spring.

Claims (1)

[Claims] 1. An electronic component mounting apparatus for sandwiching a terminal projecting from a component main body at a position opposite to an insertion side of an electronic component having a terminal vertically penetrating the component main body and mounting the terminal at a predetermined position on a printed circuit board. It is held in a block and a guide that has terminal fitting holes equal to the multiple of the pitch between component terminals.
A chuck that can move in parallel with the guide by sliding of a piston rod, and a terminal of the electronic component is fitted so that the terminal of the electronic component penetrates the terminal fitting hole from a vertical direction. After the position is adjusted, the chuck is moved in parallel with the substrate surface so that the terminals of the electronic component in the state of being adjusted by the fitting hole of the guide are sandwiched between the inner surface of the fitting hole and the chuck. An electronic component mounting device characterized by being configured.