JPH04218999A - Supply device for component to mounting machine - Google Patents

Abstract

PURPOSE:To automatically supply component cassettes en block smoothly to a mounting machine even if the positioning accuracy to the mounting machine of a carry truck, which carries a plurality of component cassettes loaded thereon is low. CONSTITUTION:A movable table 25 and the fixing means 29 are provided on a carry truck 21, and a cassette holding blocks 12, where a plurality of component supply cassettes 11 are loaded, is positioned on the movable table 25. When this carry truck is positioned within the specified range and is shifted to come close to the component supply part of a mounting machine 1, the fixation of the movable table 25 by the fixing means 29 is released by the cam plate 41 on the side of the mounting machine, and also the cam plate 41 as the position regulation means for the movable table 25 regulates the movable table 25 accurately in the specified position. Then, the cassette holding block 12 on the movable table 25 is delivered to the side of the mounting machine and is fixed there, whereby a plurality of component supply cassettes 11 are supplied en block to the component supply part of the mounting machine 1.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component supply device for supplying a required number of component supply cassettes to a mounting machine at once in the production of electronic circuit boards.

0002

[Background Art] In recent years, in electronic component mounting machines, the required number of component supply cassettes (hereinafter referred to as "parts cassettes") are replaced at once in order to shorten the switching time when changing circuit board models. There is a need for functionality that enables this.

Therefore, in the past, a plurality of parts cassettes were positioned and mounted on a batch replacement plate provided with a handle and positioning pin holes, and a fixed block having positioning pins was installed in the component supply section of the mounting machine. has been established. When replacing parts in the component supply section of the mounting machine, the operator carries the batch replacement plate by the handle, aligns the positioning pin holes with the positioning pins, and attaches and detaches the plate to the fixed block. ing.

However, when the number of parts cassettes increases to ten or more, the total weight of the bulk replacement plates that must be transported becomes several tens of kilograms or more, making the task extremely difficult.

[0005] As a parts supply device to solve such problems, the present applicant previously proposed in Japanese Patent Application No. 118318/1999 a system in which a plurality of parts cassettes 11 are mounted on a transport cart 10, as shown in FIG. The cassette holding block 12 is placed and transported, and the component supply section 4 of the mounting machine 1 is provided with a moving means 13 for moving the cassette holding block 12 between the component supply position and the block attachment/detachment position, and the transport trolley 10 and the block We have proposed a device in which the component supply block is delivered to and from the moving means 13 at the attachment/detachment position. 13a is a cylinder device that drives the moving means 13.

In FIG. 4, the mounting machine 1 is configured to supply and position a circuit board 3 on which an electronic component is to be mounted to a predetermined position on its main body 2. Also main body 2
A component supply section 4 is arranged in the upper front part, and this component supply section 4
The mounting head 5 takes out an electronic component from an arbitrary parts cassette 11 and mounts it on an arbitrary position on the circuit board 3.
The robot 6 is configured to be able to move and position between the circuit board 3 and the component supply section 4 .

[0007]

[Problems to be Solved by the Invention] However, even in the parts supply device using the above-mentioned transport cart 10,
Unless the transport cart 10 is accurately positioned with respect to the component supply section 4 of the mounting machine 1, the cassette holding block 12 cannot be transferred smoothly, and it takes time and effort to supply components to the mounting machine 1. There was a problem.

[0008] In view of the above-mentioned conventional problems, the present invention provides a system for smoothly transferring a plurality of parts cassettes to and from the parts supply section of a mounting machine even if the positioning accuracy of a transport cart is low. The purpose is to provide a device for supplying parts to a mounting machine.

[0009]

[Means for Solving the Problems] A component supply device for a mounting machine according to the present invention is provided with a transport trolley on which a plurality of component supply cassettes are loaded and transported toward the mounting machine, and a component supplying device is provided on the transport trolley along a horizontal plane. A movable table that can be moved is arranged, a fixing means is provided for fixing the movable table at a reference position, and a cassette holding block on which a plurality of component supply cassettes are positioned and mounted is positioned and fixed on the movable table. , the mounter is provided with a means for releasing the movable table from being fixed by the fixing means, and a position regulating means for engaging the movable table to move it and position it at a predetermined position on the mounter. do.

0010

[Operation] According to the above configuration, when the transport cart is positioned within a predetermined range and moved close to the component supply section of the mounting machine,
The fixing release means on the mounting machine releases the fixing of the movable table by the fixing means, and the position regulating means engages with the movable table to precisely regulate the position of the movable table that is movable in the horizontal direction to a predetermined position. Therefore, by transferring and fixing the cassette holding block that is positioned and fixed on the movable table to the mounter side, multiple component supply cassettes can be supplied at once to the component supply section of the mounter. .

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a device for supplying parts to a mounting machine according to the present invention will be described below with reference to FIGS. 1 to 3.

The configuration of the mounting machine 1 is almost the same as that of the conventional one shown in FIG. 4, and there is no substantial difference, so the explanation thereof will be used and the explanation will be omitted here.

In FIG. 1, reference numeral 21 denotes a transport vehicle for positioning and transporting the cassette holding block 12 on which a plurality of parts cassettes 11 are mounted. The mounting device 1 is transported to the front position of the mounting machine 1 by a transport wagon 20 that is movable along a transport path (not shown) provided between the mounting machine 1 and the mounting machine 1 . Wheels 22 are attached to the lower end of the transport trolley 21 so that it can move near and far with respect to the component supply section 4 of the mounting machine 1, and a handle 23 is provided at the upper end.

As shown in FIG. 2, a movable table 25 supported by a plurality of sliding ball bearings 24 so as to be movable along a horizontal plane is disposed on the upper surface of the transport vehicle 21. As shown in FIG. The cassette holding block 12 is positioned and supported on the movable table 25 by positioning pins (not shown).

The movable table 25 is elastically positioned in the left-right direction by coil springs 26a and 26b disposed on both its left and right sides. Further, it is urged to move forward by a coil spring 27 disposed at the rear, and is engaged with a pair of front end stoppers 28 to be positioned in the front-rear direction so as to be able to move backward. Furthermore, fixing means 29 are provided on both sides of the front end of the movable table 25 to engage with the movable table 25 from the lower surface side and fix it at the positioning position. Further, a pair of positioning cam followers 37 are disposed on both sides of the front end of the movable table 25.

The detailed structure of the fixing means 29 is shown in FIG. In FIG. 2, the tip (rear end) of a locking lever 31 whose front end is vertically swingably supported by a pivot pin 30 is inserted into a locking hole 32 formed in a movable table 25 from below. A locking protrusion 33 to be engaged is provided in a protruding manner. Further, a spring 34 is provided that swings and biases the locking lever 31 upward. An operating piece 35 is provided to protrude upward from the intermediate portion of the locking lever 31 and above the movable table 25, and a guide roller 36 is attached to the upper end of the operating piece 35.

On the other hand, on the mounting machine 1 side, a pair of cam plates 41 are provided which engage the pair of positioning cam followers 37 from the outside to regulate the position of the movable table 25. The inner side of the cam plate 41 is formed with a guide part 41a whose inner width gradually becomes narrower and a regulating step part 41b which regulates the position in the longitudinal and lateral directions. Further, as shown in FIG. 2, the lower surface of this cam plate 41 engages with the guide roller 36 at the upper end of the action piece 35 to push down the locking lever 31 against the spring 34, thereby fixing the movable table 25. The guide roller 36 is configured to be released, and an inclined guide surface 41c is formed on the lower surface of the tip so that the guide roller 36 smoothly engages with the guide roller 36.

Further, on the mounting machine 1 side, an elevating means 42 for elevating and lowering the cassette holding block 12 on the positioned movable table 25 is provided. This elevating means 42 is provided with a positioning pin 43 that engages with a positioning hole 12a provided in the cassette holding block 12 for positioning.

Next, using the transport cart 21 having the above configuration,
Cassette holding block 1 equipped with parts cassette 11
2 to the component supply section 4 of the mounting machine 1 will be explained.

When the transport cart 21 is transported by the transport wagon 20 to a position in front of the component supply section 4 of the mounting machine 1, the transport trolley 21 is directly pushed into the mounting machine 1 side. Then, as shown in FIG. 2, the lower surface of the cam plate 41 is
The locking lever 31 engages with the guide roller 36 at the upper end of the locking lever 31.
is pushed down to disengage the locking protrusion 33 from the locking hole 32, and the movable table 25 is unlocked and becomes movable.

Thereafter, as shown in FIG. 3, one of the positioning cam followers 37 is moved to the other cam plate 4.
1, and as the carriage 21 approaches the parts supply section 4 as shown by the white arrow, its position is regulated in the left and right direction as shown by the broken line arrow, and the positioning cam follower 37 moves to the regulating stage. By engaging with the portion 41b, the position is regulated in the front, rear, left and right directions.

As a result, the cassette holding block 12 on the movable table 25 is positioned at a predetermined position in the component supply section 4 of the mounting machine 1, and the cassette holding block 12 is lifted by the lifting means 42 on the mounting machine 1 side. Then, the carriage 21 is fixed at a predetermined position in the parts supply section 4 after being evacuated.

On the other hand, when the parts cassettes 11 fixed to the parts supply section 4 of the mounting machine 1 are to be removed all at once, the process is almost reversed.

[0024]

Effects of the Invention According to the device for supplying components to a mounting machine of the present invention, when the transport cart is positioned within a predetermined range and moved close to the component supply section of the mounting machine, the fixing release means on the mounting machine side The fixing of the movable table by the fixing means is released, and the position regulating means engages with the movable table to precisely regulate the position of the horizontally movable table to a predetermined position. By delivering and fixing the positioned and fixed cassette holding block to the mounting machine side, a plurality of component supply cassettes can be collectively supplied to the component supply section of the mounting machine.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a component supply device to a mounting machine.

FIG. 2 is a partially sectional side view of the fixing means of the movable table.

FIG. 3 is a plan view showing the position regulating operation of the movable table.

FIG. 4 is a perspective view of a conventional mounting machine and its component supply device.

[Explanation of symbols]

1 Mounting machine 4 Parts supply department 11 Parts cassette 12 Cassette holding block 21 Transport trolley 25 Movable table 29 Fixing means 37 Cam follower for positioning 41 Cam plate

Claims (1)

[Claims] Claim 1: A transport cart is provided on which a plurality of component supply cassettes are loaded and transported toward a mounting machine, and a movable table movable along a horizontal plane is arranged on the transport cart, and the movable table is moved to a reference position. A cassette holding block, in which a plurality of component supply cassettes are positioned and mounted, is positioned and fixed on the movable table, and the movable table is released from being fixed by the fixing means on the mounting machine side. 1. An apparatus for supplying components to a mounting machine, comprising: a means for supplying components to a mounting machine; and a position regulating means that engages with a movable table to move the movable table and align it to a predetermined position of the mounting machine.