JPH01238100A - Parts supply device - 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 Industrial Application] The present invention relates to a component feeding device for a machine that mounts a wide variety of small parts onto predetermined positions on a board at high speed, and particularly relates to a component supply device for a machine that mounts a wide variety of small parts onto predetermined positions on a circuit board, and particularly relates to a component supply device for a machine that mounts a wide variety of small parts onto predetermined positions on a board. The present invention relates to a component supply device for an electronic component mounting machine that mounts electronic components onto a printed circuit board at high speed.

[Conventional technology]

Conventionally, an electronic component mounting device for mounting a wide variety of electronic components onto a printed circuit board has a component supply table that reciprocates from side to side and stops at a predetermined position, as disclosed in Japanese Patent Laid-Open No. 55-118698. A ward component supply unit is placed therein, and the component supply table moves every time the transfer hept picks up one electronic component in the supply unit. Its external appearance is shown in FIG. 6, its structure is shown in a plan view in FIG. 7, and its DD sectional view is shown in FIG. 8, and the explanation will be given in detail in the drawings.

The electronic component mounting machine has a main body base 1 and a component supply table 2.
, a transfer mechanism 3 using a rotary head or a Cartesian robot (a rotary head is shown in FIG. 7);
The main component is the XY table 4, and the drive mechanism for the component supply table 2 includes the component supply table 2 on the linear guide 5, as shown in FIG. There is a method in which the motor 9 is driven by a rack 6, a pinion 7, a decelerator 8, and a motor 9. In addition,
There are also systems in which the ball screw is driven by a servo motor or a stepping motor.

On the component supply table 2, several dozen to nearly 100 types of tape reel units containing electronic components are placed in parallel. This table 2 is positioned at high speed so that the tape reel containing the necessary electronic components is located directly below the suction position 3a of the rotary head 3. At the same time as the rotary head 3 picks up the electronic components and rotates, the XY table 4 moves the printed circuit board to a predetermined position directly below the transfer position 3b of the rotary head 3. It is positioned so that the Next, electronic components are mounted on the printed circuit board.

The above operations are performed continuously at high speed.

[Problem to be solved by the invention]

In the conventional apparatus as described above, when replacing the substrate rod, the entire apparatus is stopped, the component storage units are rearranged, and new units are added.

In this type of equipment, which transfers several items per second at high speed,
This stoppage due to setup time reduces the amount of work.

For this reason, it is possible to arrange multiple component supply tables on the same straight line on the same base and replace the tables by automatic switching, but with this method, it is necessary to provide a drive mechanism for the entire movement range. However, this mechanism requires a lot of effort and is not economical.

SUMMARY OF THE INVENTION An object of the present invention is to provide a component supply device in which setup change operations can be carried out without stopping the entire device during mounting operation, and the drive mechanism for the component supply table is compact and economical.

[Means to solve the problem]

In order to achieve the above objective, multiple parts supply tables are arranged on the same straight line on the same base, and only an area approximately twice the maximum length of the table is located inside the table movement area, centered on the suction position. By providing a drive mechanism, setup preparations can be made without stopping the device, and an economical parts supply device can be achieved in a shed.

[Effect]

As described above, since the plurality of component supply tables are configured to be able to be individually driven and stopped on the same straight line, the weight of each table is reduced. In addition, only the table on which the electronic components to be supplied are mounted is driven at high speed and positioned at a predetermined position, and while the electronic components are being transferred to the transfer board, the other tables are stationary and rolled up. You can perform setup work such as rearranging electronic components for the next board rod.

(Embodiment) Hereinafter, a component supply device according to an embodiment of the present invention will be explained based on FIGS. 1 to 3. FIG. 1 is a plan view of the component supply device whose drive mechanism is a linear motor type, and FIG. 3 shows a sectional view taken along the line AA and a sectional view taken along the line BB in FIG. 1, respectively.

In the parts supply section 11 on the main body base 10, over the entire length,
A linear guide 12 is arranged, and therefore a plurality of component supply tables 1 are installed on the same guide.
The movable regions 3a and 13b are lengthwise. A linear motor 14 is installed as a drive mechanism at the bottom of the component supply table 13 in a region of length t, /2 in the central part of the component supply section 11.
is installed. The approximate center of the linear motor 14 substantially coincides with the suction position 1t3a of the transfer mechanism 3.

As shown in FIG. 2, the structure of the linear motor 14 is such that a permanent magnet 15 is arranged on the stationary side with opposing faces and adjacent magnets having different polarities, and a flat coil 17 is placed in the gap 16 of the permanent magnet 15. It is a movable type with an inserted coil. and,
The coil 17 is fixed to the lower surface of the table 13. The structure outside the drive area is as shown in Figure 3.
There is only a linear guide 12, and a permanent magnet 15 is on the fixed side.
is not placed.

In addition, as another form of the linear motor, a circular or rectangular coil with a center yoke may be used, and
A movable magnet type with the permanent magnet on the movable side and the coil on the stationary side may be used.

In the above structure, the parts supply table in the center +3
8 are sequentially positioned at the suction position 3a by the linear motor 14 according to the controller (not shown), while the table 13b at the end is stationary.
You can set up parts for the next rod. When the mounting using the same table 13a is completed, the operator, in response to an instruction such as an alarm on the main body,
The rods are replaced manually, and the installation work of the next rod is resumed by using the restart switch of the controller. Next, another embodiment of the present invention will be described based on FIGS. 4 and 5. Fig. 4 is a plan view of a parts supply device whose drive mechanism is a rack-binion type, and Fig. 5 is a cross-sectional view taken along line C-C in Fig. 4. Items with the same reference numerals as in Fig. 1 have the same functions. It has the following.

Component supply table 13 arranged on the same guide 12
A rack 18 is fixed at each end of B and 13b in a direction perpendicular to the direction of movement and on the opposite side of the suction position 3a. A binion 19 is arranged at the center of the inner half area L/2 of the entire movement area of the tables 13a, b, and this position is located between the suction position 3a and the table 13a.
, are at the same position across b. 's1MJ mechanism is
As shown in Fig. 5, it consists of a pinion 19, a speed reducer 20, and a motor 21, and is the same mechanism as shown in Fig. 8, but since the table is smaller, the capacity of the drive mechanism is less than half. And that's enough.

In the above structure, the movement of the table is the same as in the previous embodiment, and the engagement between the binion and the rack can be fully realized manually.

Although the number of component supply tables is two in FIGS. 1 and 4, it is possible to use any number of component supply tables.

〔Effect of the invention〕

As explained above, according to the present invention, 1. Among the multiple component supply tables, the table used for mounting electronic components performs high-precision, high-speed positioning, and the other tables are stationary on both sides of the main body base, so the stationary table is not used during equipment operation. It is possible to perform setup work for the next Robdo. The equipment is operated for the rounding and setup work.
Therefore, the amount of work can be improved without stopping.

Further, since the drive mechanism for the table is provided only in the central portion, it is small and economical.

In addition, by distributing the parts supply table as a movable part into multiple parts, and only the table performing the transfer work performs positioning movement while the other tables remain stationary, the weight of the movable parts can be reduced to a fraction of the weight. The capacity of the drive section and the control section can be reduced.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a motor-driven parts supply device showing one embodiment of the present invention, and FIGS.
FIG. 4 is a plan view of a rack-binion drive type component supply device showing another embodiment of the present invention, and FIG. -C sectional view, FIG. 6 is an external view of an electronic component mounting machine, FIG. 7 is a conventional component supply device, and FIG. 8 is a DD sectional view of FIG. 1... Main body base 2... Parts supply table 3.
...Transfer mechanism 4...XY table 5゛...
Linear guide 6...2 puck 7...Binion 8...Reducer 9...Motor 10...
Main body base 11... Component supply section 12... Linear guide 13... Component supply table 14...
Linear motor 15... Permanent magnet 16... Gap 17... Coil 18... Rubber 19
...Binion 20...Reducer 21...Motor. Figure 1 Figure 2 Figure 3 Figure 10 4th base 14 Lini lower motor 11 Iku I! O only five years old tμ
15 Made 4 Masaseki 12 Riff'? fl”id
16 Dōken official β13cL,
13b @pFb Ichikeikai〒-Pre 1 Wa Koi Ishi 4th Illustration 5 Figure 1s La Rif 19 Pinion 20
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Claims (4)

[Claims] 1. In a component supply device, multiple component supply tables loaded with multiple types of components reciprocate from side to side on a base and stop at a predetermined position, and continuously supply the above components to a transfer mechanism. inside the possible range, and
A parts feeding device characterized by being provided with a drive mechanism that enables automatic movement only in an area approximately twice the maximum table length among the plurality of parts. 2. 2. The component supply device according to claim 1, wherein the drive mechanism is a linear motor, and permanent magnets or coils are arranged only in areas of the base where automatic movement is possible. 3. A claim in which the drive mechanism is a rack/binion, a rack is provided on one side of the end in the direction perpendicular to the direction of movement of the parts supply table and over the entire length of the table, and the binion is placed in the center of the area where automatic operation is possible. Component supply device according to item 1. 4. Each component supply table is equipped with a component storage unit that sequentially sends out the components, a transfer mechanism that sucks or grips the components on the table, and attaches them to the board, and a transfer mechanism that places the board on the board and places the component two-dimensionally in a predetermined manner. The component supply device according to any one of claims 1 to 3, which forms an electronic component mounting machine comprising a table for positioning.