JP2839035B2 - Parts supply method - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component supply method for supplying components to an electronic component mounting machine or the like, and more particularly, to a component supply device having a plurality of supply tables that are independently movable. Related to the supplied component supply method.

2. Description of the Related Art A conventional component supply method for supplying an electronic component to an electronic component mounting machine for mounting an electronic component on a printed circuit board includes a component supply position, such as a component supply cassette, on which a plurality of component supply units are set. The component supply is performed from the supply table at the component supply position using a component supply device that is movable between the replenishment position.

However, in the above conventional example, when the component supply unit set in the supply table runs out of components, the supply table during the component supply operation is moved from the component supply position to the component replenishment position, and the After the replenishment has been performed, the user has to move to the component supply position again and restart the component supply operation.

Therefore, while the supply table reciprocates between the component supply position and the component replenishment position, the component supply operation is interrupted,
There is a problem that the work efficiency of parts supply is poor.

SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a component supply method capable of reducing interruption of a component supply operation due to component replenishment and improving a component supply operation efficiency.

Means for Solving the Problems In order to achieve the above object, the parts supply method of the present invention is used to set a set of parts supply units used for a predetermined production model separately in these supply tables and supply parts sequentially. When a component shortage occurs in one supply table, component supply is continued for components other than the component shortage component, and then the other supply table is moved to a component supply position to supply components, and By moving the supply table to the component replenishing position while replenishing the part replenishment part while supplying the component from the supply table, and then supplying the part for the part replenishment, the component supply is performed. Is performed.

According to the configuration described above, when a component shortage occurs in one supply table, by continuing the component supply for components other than the component shortage, it is possible to avoid interruption of the component supply operation when the component shortage occurs. it can. The parts replenishment of the supply table is performed by moving the supply table to the parts replenishment position by using the idle time while supplying the parts from the other supply tables. Can be avoided. By supplying the parts including the part shortage in this way, the interruption time of the part supply operation can be shortened, and the operation efficiency of the part supply can be improved.

Embodiment An embodiment of the present invention will be described with reference to FIGS.

As shown in FIG. 3, the component supply device of this embodiment guides and supports a first table (supply table) 1 and a second table (supply table) 2 by rails 3 so as to be able to reciprocate. Below these tables 1 and 2, a screw shaft 4 is disposed and fixed along the above-mentioned direction. On the lower surface side of each of the tables 1 and 2, a nut part 5 screwed to the screw shaft 4 and a hollow motor (driving means) 6 for rotating the nut part 5 around the screw shaft 4 are installed. I have. The hollow motor 6 has a cylindrical rotor 8 concentrically arranged with the screw shaft 4 rotatably via a bearing 9 inside a stator 7 fixed to the lower surfaces of the tables 1 and 2. . One end of the rotor 8 is connected to the nut 5. Therefore, the hollow motor 6 rotates the rotor 8 to rotate the nut portion 5 so that each of the tables 1 and 2 can be independently reciprocated along the rail 3.

As shown in FIG. 4, the component supply device of the present embodiment is installed on the back of the electronic component mounting machine 10. The right end position of the first table 1 rail 3, is a component replenishment position S ₁ to perform the set of parts cassettes (component feeding unit) 11. The left-side position of the second table 2 rail 3, is a component replenishment position S ₁ to perform the set of component cassettes 11. A position corresponding to the component mounting head 12 of the rail 3 is a component supply position F of each of the tables 1 and 2.

Using the component supply device configured as described above, a component supply procedure performed by setting a set of component cassettes 11 used for a predetermined production model separately in the first and second tables 1 and 2 will be described.
This will be described with reference to FIG. 1 and FIG.

The first table 1 has a component cassette 11 for component Nos. 1 to 75.
And the second table 2 has a component cassette of component Nos. 76 to 150.
Set 11 for each. After setting, the tables 1 and 2 are moved to the component supply position F in a state where they are connected to each other, and components are sequentially supplied from the No. 1 component cassette 11 of the first table 1 (FIG. 2A).

When a component shortage occurs in the component cassette 11 of No. 2 (FIG. 2B), the incomplete part of the mounting program for the component of No. 2 is suspended, and as shown in FIG. 2C. , No.3
Is supplied from the component cassette 11.

After the component supply from the component cassette 11 of No. 75 (FIG. 2 (d)) is completed, as shown in FIG. 2 (e), the components are sequentially stored in the second table 2 from the component cassette 11 of No. 76. starts the supply, to move the first table 1 in the component replenishment position S _1, performs part replenished by replacing the parts cassette 11 in No.2 while the component supply from the second table 2 is performed . Then, after the component supply from the second table 2 is completed (FIG. 2 (f)), the first table 1 is moved to the component supply position F, and as shown in FIG. The remaining components are supplied from the component cassette 11.

In this embodiment, when the replenishment of the components in the first table 1 is completed, the components may be replaced with the second table 2 currently supplying the components, and the components may be supplied before the components are exhausted. In the case where a component shortage occurs in the second table 2 as well, while the component supply for the component shortage is being performed by the first table 1, the second table 2 is moved to the component replenishment position and the corresponding component cassette 11 is removed. After the replacement, the component supply from the second table 2 can be performed after the completion of the component supply.

Effects of the Invention Since the component supply method of the present invention has the above configuration and operation, interruption of the component supply operation due to component replenishment can be reduced, and the operation efficiency of component supply can be improved.

[Brief description of the drawings]

FIG. 1 is a flowchart of an embodiment of the present invention, FIG. 2 is a schematic plan view showing an example of moving a table, FIG.
FIG. 1 is a plan view showing the overall configuration of the present embodiment. 1,2 ...... feed table 11 ...... component supply unit F ...... component supply position S _1, S ₂ ...... component replenishment position

──────────────────────────────────────────────────続 き Continuation of front page (72) Inventor Takashi Shimizu 1006 Kazuma Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) References JP-A-63-307799 (JP, A) JP-A-62- 157735 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) H05K 13/02

Claims (1)

(57) [Claims] 1. A component supply apparatus using a component supply device having a plurality of supply tables in which a plurality of component supply units can be set so as to be independently reciprocable between a component supply position and respective component replenishment positions. In the method, when a set of component supply units used for a predetermined production model is set separately in these supply tables and parts are sequentially supplied, when a supply shortage occurs in one supply table, this component outage Continuing the component supply for components other than the component, then moving the other supply table to the component supply position to supply the component, and while supplying the component from the other supply table, changing the supply table A component supply method comprising: moving a component to a component replenishment position, replenishing a component that has run out, and then supplying the component that has run out of the component, thereby performing component supply. .