JPH02139143A - Fitting method for part - Google Patents

Abstract

PURPOSE:To fetch the necessary part appearing in order at a part feeding station and to fit to a sheet of a board by making a movable support base arranging plural part feeding units progressive and retrogressive. CONSTITUTION:A movable support base 31 stops a part feeding unit 32 at a part feeding station 41 in order with moving to the left. A part is fetched one by one thereby and fitted to a unit board 11. The movable support base 31 is then moved to the right and the part feeding unit 32 is stopped at the part feeding station 41 in order. The part fetched from the feeding unit is fitted to the succeeding unit board 11. Moreover the movable support base 31 performs the part feeding with repeating the progression and retrogression alternately to the right for the succeeding unit board 11. Thus the part feeding of two boards 2 part is completed while the movable support base simply feeds parts, so the movable support base can omit the dead time of returning to the origin for a long distance.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention is directed to a method for mounting a large number of components on one board.
94, and can be applied to electronic circuit board assembly processes, etc.

(b) Prior Art A typical example of work in which a large number of parts are mounted on a single board can be seen on an electronic circuit board assembly line. The size of components tends to be smaller, and the density of component mounting is increasing proportionally, so that most component mounting is now performed by specialized automatic machines. Now, in such an automatic machine, in order to supply many types of parts at accurate timing, a plurality of component supply units are arranged on a movable support base, and this movable support base is moved according to the mounting sequence. It is similar to one in which the desired parts supply units are sequentially stopped at the parts supply station. An example thereof can be found in Japanese Patent Laid-Open No. 142799/1983. The usual way of arranging component supply units is to line up component supply units containing predetermined components from one end to the other according to a mounting sequence.

(c) Problems to be Solved by the Invention In the component supply device having the above configuration, when there are many types of components to be mounted, a large number of component supply units must be lined up, and the entire device becomes long. Therefore, if you start supplying from the component supply unit located at one end, and after reaching the other end, you try to supply the next board again from the first component supply unit, the movable support base will be turned back. The problem was that it took a lot of time to do so, resulting in a lot of lost time. The present invention seeks to solve this problem.

B) Means for Solving the Problems In the present invention, a movable support base on which a plurality of component supply units are lined up is moved in one direction, and as a result of this movement, the required components are delivered according to the order of the component supply units that are sequentially returned to the component supply station. The components are taken out and the components are mounted on one board.

After finishing work on this board, when starting to load parts onto the next board, move the movable support table backwards and pick up the required parts from the parts supply unit that appears at the parts supply station in the reverse order. and carry out parts installation.

(E) Effect According to the above procedure, the forward movement of the movable support table completes the supply of components to one board, and the return movement completes the supply of parts to the next board, so the movable support table can be moved one by one. This saves the effort of returning the support stand to its origin.

(F) Embodiment An embodiment of the present invention will be described based on the drawings. FIG. 4 schematically shows the layout of the component mounting device 21 used for assembling electronic circuit boards.

22 is a suction device, 23 is a component supply device, 24 is a supply side substrate transfer device, 25 is a storage side substrate transfer device, and 26 is a substrate positioning device. The board positioning device [26 is mainly composed of an X-Y table, and picks up the board 11 from the supply side board transport device 24, and sequentially positions the parts mounting parts of the board 11 at the work point. After mounting all the required parts, the board positioning device ji26 delivers the board 11 to the storage-side board transfer device 25.

The component supply device 23 has a plurality of component supply units 32 arranged on a movable support base 31 that moves linearly.

At present, tapes, magazines, bulk hoppers, and the like are currently widely used for parts supply, and any of these methods may be used. The suction device 22 includes a plurality of mounting heads 36 provided around the periphery of a rotary index table 35. As shown in FIG. 2, a total of 10 mounting heads 36 are arranged in the embodiment, and each mounting head 36
has a suction collet 37 shown in FIG. As the rotary index table 35 rotates, each mounting head 36 sequentially rotates around ten work stations. A work station that is a contact point between the mounting head 36 and the component supply bag R23 (in FIG. 2, the mounting head 36 with identification code A is located) is the component supply station 41, and the mounting head 36 and the board positioning device 26
A work station (in FIG. 2, a mounting head 36 labeled with an identification symbol F is located) that serves as a contact point is a component mounting station 46. The suction collet 37 is attached to the component supply unit 3 at the component supply station 41.
2 toward the component 15 in the component mounting station 4.
In step 6, each downward motion is performed toward the substrate 11. It should be noted that a component position adjustment device for performing suction, centering and angle adjustment of the component 15 suctioned by the collet 37 is disposed at any of the work stations from the component supply station 41 to the component mounting station 46.

FIG. 4 shows the control system of the component mounting device 21.

Reference numeral 51 denotes a control section composed of an arithmetic processing section 52 and a memory 53. The control section 51 includes a suction device 22, a component supply device 23, a substrate transfer device 24, 25, a substrate positioning device i't26, a component position adjustment device 54, a data input section 55, a keyboard 56, and an input/output interface 57. connected via.

When a dispenser for applying component fixing solder paste, adhesive, etc. to the board 11 is incorporated into the device, this dispenser 58 is also connected in the same manner.

In the present invention, parts are mounted in the following order.

The substrate 11 shown in FIG. 1 connects a plurality of unit substrates,
Three unit boards 12 of different types, which are so-called multi-panel boards that are divided when soldering of components is completed.
It is a combination of 13 and 14. Because this is a room for explanation purposes, of the two boards 11 drawn in the figure, the one on the right, that is, the one on which parts are mounted first, is given the identification code a, and the one on the left, that is, the next An identification code is added to the board 11 on which components are mounted.

Unit substrate 12.13.1 forming substrates 11a and llb
Similarly, identification codes a and b are attached to 4. Further, in FIG. 2, identification codes 1 to 10 are attached to ten component supply units 32 arranged in order from the left.

Identification codes 1 to 10 represent the types of parts. Now, in FIG. 1, component mounting is first started from the unit board 12a. At this time, the Ml moving support base 31 moves from right to left in FIG. 2, and the identification code 1.
3.5.7.9 The component supply units 32 are sequentially stopped at the component supply station 41. The components 15 are taken out one by one from these component supply units 32 and placed on the unit board 1.
Attach it to 2a. When the component 15 with the identification code 9 is picked up, the supply of components to the unit board 12& ends, but
The movable support stand 31 continues to move, and the component supply unit 32 with the identification code 10 is stopped at the component supply station 41. Next, parts are mounted on the unit board 13a. The movable support base 31 moves from left to right in FIG. 2, and sequentially stops the component supply units 32 with identification numbers 8 and '6.4.2 at the component supply station 41, starting with 10. The components 15 taken out from these component supply units 32 are mounted on the unit board 13B. When mounting components on the unit board 14a, the movable support base 31 moves from right to left, and the component supply unit 32 with the identification code 1.2.5.10 (from 5, components are taken out twice in succession). The supply station 41 is stopped. Next board 11
In b, the movable support base 31 moves forward from left to right with respect to the unit board 12b (in FIG. 2), from right to left with respect to the unit board 13b, and from left to right with respect to the unit board 14b.・Parts are supplied while repeating the reverse movement alternately.

(g) Effects of the Invention According to the present invention, it is possible to cut off the supply of components for two boards while the movable support table reciprocates once, and in order to prepare the parts supply system, the movable support table There is no need to force a long-distance return to the origin, and loss time can be eliminated. The time-saving effect of the present invention is particularly remarkable in the case of a multi-sided board where the time interval from the end of one work to the start of the next work is short.

[Brief Description of the Drawings] Fig. 1 is a top view of a board showing a component mounting procedure according to the present invention, Fig. 2 is a top view of main parts of a component mounting device that performs the component mounting work of Fig. 1, and Fig. 3 is a partial front view of the device in Figure 2;
FIG. 4 is a top view showing the overall layout of the component mounting device, and FIG. 5 is a block diagram showing the control system of the component mounting device. DESCRIPTION OF SYMBOLS 11... Board, 15... Components, 31... Movable support stand, 32... Component supply unit, 41... Component supply station. Figure 1

Claims (1)

[Claims] (1) By arranging a plurality of component supply units on a movable support base and moving this movable support base in one direction, the required components are taken out in the order in which the component supply units appear one after another at the component supply station. At the same time, for the next board, by reversing the movable support base, the required parts are taken out from the component supply unit that appears at the component supply station in the reverse order, and component mounting is performed on the next board. A parts mounting method characterized by: