JPH02271698A - Device for mounting of electronic component - Google Patents

Abstract

PURPOSE:To increase the degree of freedoms at the time of operating tables by providing feed nuts to be engaged with feed screws at the lower parts of two tables, and motors for rotating the nuts. CONSTITUTION:Tables 6, 7 are driven motors to supply electronic components solely or integrally with both to a transfer head 3 while moving a working area A, and solely retracted to retraction areas B, C to replace a table unit 8. For example, if any electronic component on the table 7 is in shortage, the table 7 is retracted to the right area C, the table 6 disposed in the area B is moved to the area A, reciprocated in the area A to supply the component, and the unit 8 of the table 7 retracted to the area C is replaced. Thus, the degree of freedoms in the operation of the tables can be enhanced.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an electronic component mounting apparatus, which includes two tables,
They are each independently moved back and forth along the feed screw of the table moving device.

(Prior Art) As an electronic component mounting apparatus, as shown in Japanese Patent Application Laid-open No. 62-21300 and Japanese Patent Application Laid-open No. 63-269600, a table moving device installed behind the main body of the electronic component mounting apparatus is used. , two tables with tape units arranged side by side
While moving these tables between the work area and evacuation area, the electronic parts on the tape unit on the table in the work area are picked up by the transfer head and transferred and mounted on the board. Mounting devices are known.

(Problem to be Solved by the Invention) However, in the former case, there is only one motor that drives the table, and by switching the clutch device, both tables are moved back and forth on the table moving device. Therefore, there was a problem in that a large-capacity motor was required to move both tables together. In addition, the latter type was equipped with a moving member that moved along the feed screw, and each table was engaged and detached from this moving member using a locking and disengaging device to tow the table, so this also used a large-capacity motor. Furthermore, when the table is to be engaged and disengaged in order to replace the tape unit, it must be moved to a retraction area on the side of the table moving device, resulting in a problem of time loss.

As mentioned above, each of the above conventional systems has only one motor, so in order to be able to move both tables together at the same time, a large-capacity motor is required, and each table can be operated freely. It was of a low degree.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an electronic component mounting apparatus in which two tables can be reciprocated individually or together with a small-capacity motor, and each table can be operated with a high degree of freedom. do.

(Means for Solving the Problems) For this purpose, the present invention provides an electronic component mounting apparatus in which a table moving device is provided with two tables, in which a single feed screw is provided in the table moving device, and each of the tables A feed nut that screws into the feed screw and a motor that rotates the feed nut are provided at the bottom of the feed nut.

(Function) In the above configuration, each table is driven by its own motor and moves independently or together in the work area to supply electronic components to the transfer head, and also to replace the tape unit. Evacuate to the evacuation area alone.

(Example) Next, the present invention will be described in detail with reference to the drawings.

FIG. 1 is an overall plan view of an electronic component mounting apparatus, and FIGS. 2 and 3 are a perspective view and a front view of a table moving device,
1 is an electronic component mounting apparatus main body, and a table moving device 2 is provided behind it. The mounting apparatus main body 1 is equipped with a rotary head 4 equipped with a transfer head 3, and by index rotation of this head 4 in the M direction, the electronic components of the table moving device 2 are picked up by the transfer head 3. Then, it is transferred and mounted on the board 5.

Two tables 6.7 are placed on the table moving device 2, and each table 6.7 is provided with a tape unit 8 that is equipped with a reel wound with electronic component encapsulation tape. There is.

9 is a feed screw provided on the table moving device 2; 10a;
, 10b, Ila, and llb are motors, feeders, and throats provided at the bottom of each table 6.7, respectively. Each nut tab, ttb is screwed into a feed screw 9, and each table 6.7 reciprocates laterally along the feed screw 9 when the motor 10a112 moves. The central part A of the table moving device 2 is a work area, and the side parts B and C are evacuation areas, and each table 6.7 moves back and forth in the work area A, either individually or together.
Electronic components are supplied to the transfer head 3. Further, when the electronic parts of the tape unit 8 are out of stock, each table 6.7 is individually evacuated to the evacuation areas B and C, and the tape unit 8 is replaced.

This device has the above-mentioned configuration, and its operation will be explained next.

In FIG. 1, one table 7 reciprocates within the work area A to stop a desired tape unit 8 at the electronic component pick-up position, and the transfer head 3 ticks up the electronic component. It is transferred and mounted on the board 5. Meanwhile, the other table 6 is waiting in the evacuation area B on the left.

If any of the tape units 8 on the table 7 are out of stock, the table 7 will be evacuated to the evacuation area C on the right, and the table 6 that was previously in the evacuation area B will be moved to the work area A. By moving this table 6 back and forth in the work area A, electronic components are supplied, and during this time, the tape unit 8 of the table 7 evacuated to the evacuation area C is replaced.

In addition, if there are many types of electronic components mounted on the board 5,
Both tables 6.7 are moved to the work area, and electronic components are supplied to the transfer head 3 while both tables 6.7 are integrally moved back and forth.

In this case, it is better to keep the tables 6, 7 apart from each other slightly (for example, by about 1 to 2 fins) rather than placing them in close contact with each other to prevent loads from being applied to each other.

(Effects of the Invention) As explained above, the present invention provides an electronic component mounting apparatus in which the table moving device is provided with two tables, in which the table moving device is provided with one feed screw, and the two tables are provided with one feed screw. A feed nut that screws into this feed screw and a motor that rotates this feed nut are provided at the bottom, so the capacity of the motor can be reduced, and both tables can be moved independently on the table moving device. This provides an extremely large degree of freedom in operation, such as being able to evacuate to the evacuation area and replace the tape unit independently.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which FIG. 1 is a plan view of an electronic component mounting apparatus, FIG. 2 is a perspective view of a table moving apparatus, and FIG. 3 is a front view thereof. 1... Electronic component mounting apparatus main body 2... Table moving device 5... Board 6.7... Table 8... Tape unit 9... Feed screw 10a, lla...-Motor 10b, 11b...Nandos delivery

Claims (1)

[Claims] A table moving device is provided behind the main body of the electronic component mounting apparatus, and two tables with tape units arranged side by side are placed on this table moving device, and the center part of the table moving device is used as a work area, and the sides are used as a work area. The table is used as an evacuation area, and the table is moved back and forth in the work area, and the electronic components of the tape unit on this table are taken up by the transfer head and transferred and mounted on the board. Also, when the electronic components of the tape unit are out of stock, In an electronic component mounting apparatus in which the table is evacuated to an evacuation area and the tape unit is replaced, the table moving device is provided with a
An electronic component mounting apparatus characterized in that a main feed screw is provided, and a feed nut that is screwed onto the feed screw and a motor that rotates the feed nut are provided below the two tables.