Metal working – Means to assemble or disassemble – Means to assemble electrical device
Patent
1985-03-19
1986-05-06
Hall, Carl E.
Metal working
Means to assemble or disassemble
Means to assemble electrical device
29759, H05K 330
Patent
active
045862516
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to an apparatus for withdrawing electric parts, such as resistors, capacitors, IFTs, ICs, and semi-fixed volumes, from a predetermined supply position and mounting them on a fixed printed circuit board at predetermined positions.
BACKGROUND ART
A conventional electric part mounting apparatus of this type, as shown in FIG. 1, comprises a printed circuit board transfer section 202 for transferring a printed circuit board 201 in horizontal condition in a fixed direction, a positioning device for locating said printed circuit board 201 at a predetermined position, a head main body 203 positioned above the printed circuit board 201 standing by at said predetermined position for mounting electronic parts on said printed circuit board 201, and an X-Y table 204 supporting said head main body 203 thereon and adapted to position said head main body at an optional position in two X and Y directions, said head main body 203 comprising a magazine holder for holding a row of magazines 205 with their part take-out ports directed downward, each magazine holding a row of the same kind of electronic parts, a part supply section 206 substantially horizontally positioned adjacent the part take-out ports of the magazines for transferring electronic parts taken out of the magazines to a predetermined position, means controlled to arrange electronic parts on said part supply section 206 in a predetermined order and adapted to deliver the electronic parts in said magazines 205 onto the part supply section 206, and an insertion head 207 for gripping electronic parts transferred by said part supply section 206 and standing by at said predetermined position and for inserting them into predetermined holes in said printed circuit board 201. Thus, the part supply section 206 and insertion head 207 are placed on the X-Y table 204 and moved in a horizontal plane, and the printed circuit board 201 is maintained in fixed condition during insertion of parts.
The arrangement described above has the following drawbacks. lightweight construction, the total weight on the X-Y table is so large as to decrease the speed of movement of the X-Y table and the part mounting speed and require a large-sized drive unit. by the X-Y table, parts that can be mounted at a single supply of parts are limited in number and type.
SUMMARY OF THE INVENTION
The invention provides an electric part mounting apparatus, intended to eliminate the aforesaid drawbacks, wherein with respect to a positioned printed circuit board a part supply section is disposed on one side and on the other side there is employed a part mounting section of simple and lightweight construction composed mainly of a horizontally slidable frame, thereby making it possible to mount parts at high speed using a relatively small-sized drive unit, to supply parts even during operation of the apparatus, and to perform continuous mounting of large numbers of parts.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a side view of the principal portion of a conventional electric part mounting apparatus;
FIG. 2(A) is a perspective view of an electric part mounting apparatus, showing an embodiment of the present invention;
FIG. 2(B) is a perspective view of a magazine for storing electric parts;
FIG. 3 is a schematic perspective view for explanation of the operation of said apparatus;
FIG. 4 is a plan view showing an embodiment of the same according to the invention;
FIG. 5 is a vertical section of the same;
FIG. 6 is a plan view of a part mounting head;
FIG. 7 is a front view of the same;
FIG. 8 is a vertical section of the same;
FIG. 9 is a section taken along the line E--E' of FIG. 8;
FIGS. 10(A) and 10(B) are perspective views showing the directions in which an electric part may be mounted on a printed circuit board;
FIG. 11 is a section showing an embodiment of a part chucking device;
FIG. 12 is a side view of the same;
FIG. 13 is an explanatory view showing the abutting relation between a preceding mounted part and the chuck;
FIG. 14 is a section show
REFERENCES:
patent: 4070753 (1978-01-01), Lin
patent: 4149311 (1979-04-01), Benson et al.
patent: 4293988 (1981-10-01), Kawa et al.
Fujiwara Kouji
Kinoshita Hiromi
Maeda Yoshinobu
Hall Carl E.
Matsushita Electric - Industrial Co., Ltd.
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