JPH0271598A - Electronic component supply unit - Google Patents

Abstract

PURPOSE:To miniaturize a device and speed up the supply of components by mounting a number of electronic component supply devices respectively on the circumferential face of a cylindrical body of rotation which performs dividing rotation. CONSTITUTION:The side of an X-Y table 31 in each electronic component supply device is equipped with each electronic component supply unit and the electronic components are supplied to a nozzle 33 attached at a pointed end part of each mounting head 32. Further, the electronic component supply unit allows each electronic component supply device 20 to be disposed and mounted to the circumferential face of the cylindrical body 10 of rotation and performs high speed dividing movements by rotation.

Description

Detailed Description of the Invention [Industrial Field of Application] The present invention is an electronic component mounting machine that mounts electronic components onto a printed circuit board. Regarding the unit.

[Prior Art] Conventionally, ICs, ICs, etc. are mounted on a printed circuit board according to its circuit network.
As a device for mounting electronic components such as resistors and capacitors,
Automatic electronic component mounting machines are known. Generally, in this automatic electronic component mounting machine, an electronic component mounting head descends from above onto a printed circuit board on an X-Y table, and the electronic components chucked at the tip of the head are placed on the printed circuit board as required. It is configured to be installed in a certain position.

Further, the automatic electronic component mounting machine is equipped with a large number of electronic component supply mounting devices in order to supply required electronic components to the electronic component mounting head.

FIGS. 5(a) and 5(b) are a schematic front view and a schematic plan view, respectively, showing the installed state of a conventional electronic component supply device. In the first conventional example shown in FIG. 2A, electronic component supply devices 102 are arranged in a horizontal row on a flat indexing table 101.

Note that when arranged in this manner, the indexing table 101 moves laterally to position the required electronic component supply device 102 at a predetermined supply position A. 104 is an electronic component mounting machine that mounts the electronic components supplied by the electronic component supply bag GL102 onto the printed circuit board 105. Further, in a second conventional example shown in FIG. 2(b), electronic component supply devices 162 are arranged radially on a circular rotary table 103.

[Problems to be solved] When the electronic component supply devices are installed in a row horizontally as in the first conventional example (Fig. 5 (a)), a large installation space is required in the horizontal direction, and the indexing Since the table moves laterally, the device becomes large and indexing takes time.For example, width 60ffi11.
When equipping 20 parts supply devices with a length of 500 mm,
Even if the gap between each device is 20mm, it is 1600mmX5
00mm indexing table is required. Furthermore, when taking into account the stroke of the indexing table, an installation space of 3200 mm x 500 mm was required.

In addition, when the electronic component supply devices are installed radially as in the second conventional example (FIG. 2(b)), on a small diameter circular table, the ends of the devices closer to the center come into contact with each other. There is a problem that many devices cannot be arranged. In addition, when trying to arrange many electronic component supply devices, a circular table with an extremely large diameter is required, which increases the size of the device, which requires a large amount of installation space and takes a long time to index. there were.

The present invention has been made in order to solve the above-mentioned problems, and aims to provide an electronic component supply unit that can realize miniaturization of the device and speed up of component supply.

[Means for Solving the Problems] In order to achieve the above object, the electronic component supply unit of the present invention includes a plurality of electronic component supply devices, and each of these electronic component supply devices is arranged in the axial direction and attached on the outer peripheral surface. It is also composed of a cylindrical rotating body that indexes and rotates around a central axis, and a driving means that indexes and rotates this rotating body at an arbitrary angle.

[Example] An example of the present invention will be described below with reference to the drawings.

Fig. 1 is a partially sectional side view showing an unimplemented electronic component supply unit, Fig. 2 is a line A-A in Fig. 1, and Fig. 3 is an example of installation in an electronic component automatic mounting machine. It is a partial cross-sectional side view.

In these drawings, 10 is a polygonal shape (3 in Fig. 2).
It is a rotating body formed of a hexagonal cylinder. One end of the rotating body 10 is closed by a side wall 11, and a post 12 extends in the axial direction from the center of the side wall 11.

The post 12 is rotatably fitted into a support shaft 14 fixed to a base 13 via a bearing 15.

Further, a gear 16 is fitted and fixed on the outer periphery of the post 12, and a rotational driving force from a drive means (not shown) is applied to the gear train 1.
7. The drive means can use various drive devices such as servo motors, and are controlled to transmit a predetermined indexing rotational driving force to the rotating body 10. In this embodiment, 36 drive devices are used as described later. Since the electronic component supply device is attached to the outer periphery of the rotating body 10, 36 locations are indexed at 10 degree intervals per rotation.

10a is a mounting surface of the electronic component supply device 20, and the rotating body 10
Thirty-six surfaces are formed at equal angular intervals on the outer periphery, so that 36 electronic component supply devices 20 can be attached in the axial direction.

The electronic component supply bag RA20 is equipped with a supply reel 21 on the back, and as shown in FIG. The electronic component 40 packaged in a tape shape is accommodated in a recessed portion of a carrier tape 41 and covered with a cover tape 42 before being packaged. Then, the cover tape 42 is peeled off just before reaching the sprocket wheel 23, and thereafter it is covered by a presser plate (not shown) and reaches the parts removal position. The peeled cover tape 42 is wound around the one-winding roller 24.

These operations of the electronic component supply device 20 are performed by a link 26 that is swingable about a support shaft 25 and a ratchet mechanism 27 that is interlocked with this link 26.

That is, the pawl type 27a of the ratchet mechanism 27 is attached on the same axis of the sprocket wheel 3, and the driving pawl 27b, which is mated with this pawl type 27a, rotates at every pitch as the link 27 swings. By rotating the pawl mold 27a, the sprocket 23 is rotated. This results in
The carrier tape 41 accommodating the electronic components is transferred and the electronic components are placed at the component extraction position.

Also,! ! The five-take-up roller 24 is constantly biased by a spring 29 via a gear 28 in the direction of winding up the peeled-off cover tape 42. Note that the spring 29 is the gear 28
When the link 26 rotates, it rotates in the counterclockwise direction shown in the figure to try to weaken the biasing force, but is pushed back by the end of the link 26 and maintains the biasing force within a certain range.

The link 26 is constantly urged in the clockwise direction in the drawing by a spring or the like, and the suppression bottle 3 attached to the rad 32 is attached to the link 26.
4 swings in the counterclockwise direction in the drawing by suppressing one end of this link 26 in response to the electronic component receiving operation (movement in the direction of arrow a) of the mounting rod 32.

The electronic component supply unit described above is installed on the side of the X-Y table 31 in the electronic component supply device, as shown in FIG. 3, and supplies electronic components to the tip nozzle 33 of the mounting head 32. . Note that the supplied electronic components are rotated by the mounting head 32.

Axial movement (movement in the direction of arrows S and c in Figure 3) and X-
The X-Y table 3 is moved by the positioning operation of the Y table 31.
1, mounted on a printed circuit board.

The electronic component supply unit described above consists of a cylindrical rotating body 1
Since the electronic component supply device 2o is arranged and attached in the axial direction on the outer circumferential surface of 0, it does not take up a long installation space in the width direction, and it can be mounted in a radial arrangement (Fig. 5 (b)). The device does not spread in the radial direction, which means that the device can be made extremely compact, and its light weight makes it easy to handle and transport. Furthermore, in addition to the miniaturization, since indexing is performed by rotation, high-speed indexing operation can be performed.

Note that the present invention is not limited to the above-mentioned embodiments.1 For example, the number of electronic component supply devices attached to the rotating body is not limited to 36, but may be any number as necessary. Can be set. In that case, it goes without saying that the number of mounting surfaces formed on the outer circumferential surface of the rotating body is as many as necessary in accordance with the number of machines.

Further, the electronic component supply device is not limited to the configuration shown in FIG. 1, and can be arbitrarily selected from a group of various electronic component supply devices.

Further, the installation position of '' in the automatic child component mounting machine may be appropriately determined by taking into consideration the supply position to the mounting head, etc.

[Effects of the Invention] As explained above, according to the electronic component supply unit of the present invention, a large number of electronic component supply devices are attached to the outer peripheral surface of the indexable and rotatable cylindrical rotating body, so that the device can be made compact. speed of parts supply.

[Brief explanation of the drawing]

FIG. 1 is a partially sectional side view showing an electronic component supply unit according to an embodiment of the present invention. FIG. 4 is a line A-A in FIG. 1, and FIG. FIG. 4 is a partially sectional side view showing an installation example; FIG. 4 is a perspective view showing an example of electronic components supplied by the same unit; FIGS.
b) is a schematic plan view showing an installed state of a conventional electronic component supply device. lO: Rotating body 12: Post 13: Base 14: Support shaft 15: Bearing 20: Electronic component supply device 21: Supply reel 23: Sprocket wheel 24: Take-up reroller 26: Link 27: Ratchet mechanism

Claims (1)

[Claims] A plurality of electronic component supply devices, a cylindrical rotating body that arranges these electronic component supply devices in the axial direction and attaches them to the outer peripheral surface, and performs index rotation around a central axis; 1. An electronic component supply unit characterized by comprising: a driving means that rotates and indexes at an angle.