JPS60206098A - Device for dividing and switching part supplying unit of automatic mounting machine - 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 the Invention The present invention relates to an effective supply device for a component supply table that supplies components to a mounting section in an automatic mounting machine using a random access method.

Conventional configurations and their problems In automatic mounting machines, devices for supplying components to a mounting section are broadly classified into sequence type and random access type.

The sequence method is a method in which components are arranged in advance in the mounting order and then supplied to the mounting section, and it is difficult to accommodate different types of cut-outs.

In the random access method, parts are set in arbitrary parts supply mounting positions (hereinafter referred to as parts cassettes) provided on a parts supply table (hereinafter referred to as tables).
The table is positioned for each mounting step according to program data, and necessary parts are supplied from an arbitrary parts cassette to the mounting section, and model switching is easy by changing the program data.

However, in an automatic mounting machine that has a random access component supply section, if the number of parts cassettes used for mounting production is small compared to the maximum number of parts cassettes on the table, parts used in D can be arbitrarily distributed for multiple models. By setting the supplied parts in a parts cassette, the supplied parts can be shared and used according to the program data. However, when mounting and producing a certain model, if there is an unused parts cassette on the table, the positioning movement distance of the table (hereinafter referred to as Since the amount of movement (hereinafter referred to as "movement time") increases, the time required for positioning (hereinafter referred to as "movement time") also increases. Similarly, 1
When the production tact for mounting a sheet is completed, the table origin is positioned once, but in this case too, the movement time increases, resulting in a longer takt time and a decrease in productivity. Ta.

Furthermore, a random access type mounting machine stops when there are no more parts set in the parts cassette. In order to continue assembly production, parts must be supplied, but if the number of used part cassettes that contain the same parts is small, parts will inevitably run out and the number of stops will increase, resulting in lower operating rates. There is also the problem of a decrease in

The no-controlled mechanism is equipped with a well-known origin detection section that detects the origin that determines the reference point of the mechanism. The parts supply section also includes an origin detection section for determining the reference point of the table, and has one origin.

Purpose of the Invention The present invention solves the drawbacks of the conventional example described above, and aims to provide an effective dividing and switching device for a component supply section in production using a random access method in an automatic mounting machine. do.

Structure of the Invention The present invention provides a table with a plurality of component supply table origins (
Hereinafter referred to as the table origin. ), it is a split table that can be used by dividing into a plurality of component supply units (hereinafter referred to as units) by switching the table origin.

By providing a component supply section with this division table, it is possible to select the unit suitable for the mounting production model and minimize the travel time of the random access type component supply section, which is also effective for random mix production. It can be operated effectively.

DESCRIPTION OF THE EMBODIMENT FIGS. 1 and 2 show an embodiment of the present invention, and show a component supply section of an automatic mounting machine equipped with a table having two table origins.

FIG. 3 is a perspective view of an example of an automatic component mounting machine equipped with a component supply section of the present invention.

+11 is the parts supply table, (2) is the parts cassette,
(3) is connected to the table (
1) is the drive unit of the table (1) of the print motor that drives the table (1), (4) is the table origin detector (photoelectric sensor),
+5) is the part where the detected origin A (table origin slit) is provided, (6) is the part (not shown) where the detected origin B (table origin slit) is provided, +7) is the origin detection part, the drive part ( 3), controls the mounting section (8), and controls the table (1).
1 is a controller control unit having a storage device for positioning data (travel amount data), α4 is a power panel, Q! 9 each indicates a DO sustainer 1ζ motor driver.

The present invention includes the above-described partial structure and operates as described below.

FIG. 4 shows a table (1) in which 40 kinds of parts (al) to (a4o) are mounted in respective parts cassettes (2). The table (1) is a table origin detection photoelectric sensor (hereinafter referred to as origin detector) (4)
The origin detection unit consists of table origin slit A (hereinafter referred to as origin A) (5), which becomes the origin to be detected, and table origin slit) B (hereinafter referred to as origin B) (6),
It is divided into unit UA and unit UB.

That is, unit UA=parts cassettes a1, a2
°” ”’ ”’ &tO Unit LTB = Parts cassette a211 a22 +
It is a40.

If unit) UA is specified, the origin detector (4) will set the origin A (5) as the origin and unit U as shown in Fig. 5.
Positioning is performed between parts cassettes a IN aw of A, and parts are supplied from an arbitrary parts cassette +2) to the mounting section (8). When a series of mounting production tacts are completed, the unit is positioned at the origin A(5), and the supply of parts from any part cassette +21 of the unit UA is repeated in the same manner.

Also, if unit UB is specified, as shown in Fig. 6, the origin detector (4) uses origin B (6) as the origin, positions between parts cassettes &21 to a- of unit uB, and supplies parts. Do the following.

Specify both units UA and UB, until a, ~a,,
It is also possible to use all parts cassettes (2) in common.

As described above, according to the above embodiment, by providing the origin B (6), the origin when supplying parts from parts cassette +421 to "4fl" using the conventional one origin A (5) as the base point. The extra movement distance from A(5) to origin B(6) can be omitted.

In the conventional method, the first part is supplied by a parts cassera)
When aX is between A21 and "40," the required movement amount X (aX) is:
) '' U A21 +U 13 The movement amount which was X-2° becomes X(aX)=υB(ax)=UBx-20 in the above example, and the extra movement amount UA21 is omitted. (ax): Movement amount from the origin to the parts cassette aX to be supplied first.

UAX: Movement distance from JJC point A to parts cassette ax.

aB(ax): Movement amount from origin B to parts cassette ax. X≧21.

UB:x: Parts cassette ax-1-20 from the origin
amount of movement up to. Let X〈20.

ax: Any parts cassette.

In Fig. 4, when parts are mounted in the parts cassette (2) in the same arrangement in unit UA and unit UB, ' `` `` A21 + A2 ``a2□,...
・・・・・・iL X" A20+x l "'"
' + A20 "" A40 becomes 0 Here, when the parts of the unit) UA are exhausted, if the origin is switched from the origin A (5) to the origin B (6), the parts of the unit UB can be supplied.

That is, UAx: UBx However, UAx: Amount of movement from origin A to parts cassette ax.

UBx: Movement amount from origin B to parts cassette ax-1-20.

Therefore, the relative positions of the corresponding parts cassettes ax and 1Lx-)-20 on the units UA and UB from the respective origins A and B are equal. Therefore, the data of mobile I that used Units) UA will be exchanged.
By specifying UB, it becomes possible to realize the same mounting production.

Unit) UB serves as a spare unit for supplying parts for unit UA, and conversely, Unit) UA can be used as a spare unit for unit UB, reducing the number of times the mounting machine stops for parts supply. This will improve productivity.

In the above embodiment, the table (1) is shown as a sliding table, but as an applied example, it may be a rotating table as shown in FIG.

FIG. 7 shows an embodiment in which the present invention is applied to a rotating parts supply section, in which two origin detectors A (91, BQ
A rotating table (1) on which 20 parts cassettes (2) are mounted is divided into two by two table origins using l and one detected origin θV.

In the above embodiment, to realize two table origins,
The table origin detection unit is composed of one origin detector (4) and two
Detected origins, namely origin A (5) and origin B (6)
However, the origin detector (4) is placed in the table origin slit, and the two detected origins, namely origin A (5) and origin B
(6) may be replaced with two origin detectors, or the detector of the table origin detection section and the detected origin may be provided with a well-known table origin detection section.

In addition, in the above embodiment, two table origin points were provided to divide the table into two, but three, four, etc. points may be set as necessary.
It is also possible to divide the table into three or four units by increasing the number of units to two or more, or to divide the table into three or four units. ), but the number of parts cassettes can be determined arbitrarily.

Effects of the Invention As described above, the present invention has the effect of minimizing the moving time by providing a plurality of table origins in random access system parts supply and minimizing the amount of movement for positioning the table origin. This not only increases production efficiency but also serves as a spare unit for parts supply if the parts to be mounted on the divided units are in the same arrangement.

[Brief explanation of the drawing]

The drawings show an example of an automatic mounting machine, the first part is a partial perspective view of its sliding component supply section, the second figure is a partial perspective view of the origin detection part of the component supply section, and the third figure is a sliding part. 4 to 6 are explanatory diagrams showing the relationship between the parts cassette and the origin detection section, and FIG. It is an explanatory diagram showing an example. 1: Parts supply table 2: Parts cassette 3: Table drive unit 4: Table origin detector 5: To the detected origin
6: Detected origin B 7: Controller control unit that controls the origin detection unit, drive unit, and mounting unit and has a storage unit for table positioning data 8: Mounting unit 9: Origin detection rii
A 10: Origin detector B 11: Detected origin Patent applicant Matsushita Electric Industrial Co., Ltd. Representative Patent Attorney Isao Abe Figure 4 Figure 5 Figure 11-1. IA--Q-uB-H Figure 7

Claims (1)

[Claims] A component supply table that slides or rotates on which various multiple components are mounted, a drive unit for positioning the component supply table, multiple component supply table origins, and a component supply table that recognizes the origin of the component supply table. 1. A division switching device for a component supply section of an automatic mounting machine, comprising an origin detection section and a control section that stores positioning data of a component supply table and controls each of the sections.