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Placement System Suitable for Automated Use in Drilling and Milling Machines

IP.com Disclosure Number: IPCOM000035313D
Original Publication Date: 1989-Jul-01
Included in the Prior Art Database: 2005-Jan-28
Document File: 2 page(s) / 56K

Publishing Venue

IBM

Related People

Lenze, H: AUTHOR [+2]

Abstract

For processing circuit boards, for example, in drilling and milling machines, there is no fast placement or changing system. This means that components have to be threaded onto stationary pins and arrested, which is highly time-consuming.

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Placement System Suitable for Automated Use in Drilling and Milling Machines

For processing circuit boards, for example, in drilling and milling machines, there is no fast placement or changing system. This means that components have to be threaded onto stationary pins and arrested, which is highly time- consuming.

To eliminate this disadvantage, a special placement frame in the form of a cassette is proposed. By means of this special frame, the components are preliminarily mounted outside the machine without any tolerance losses. After the frame has been exchanged on the machine table, automated process steps may be implemented.

Fig. 1 is a plan view of the design of placement frame 1, and Figs. 2 and 3 are sectional views showing the frame in its placement and clamping position, respectively. Frame 1 has a Z-profile and is fitted with three special pins 2. Circuit boards 3 or carrier plates are provided with three recesses having the same geometry as pins 2.

(Image Omitted)

In the placement position (Fig. 2), circuit boards 3 may be sandwiched on top of each other, with pin 2 and the recess force-fitting each other. This allows moving frame 1 to the clamping position (Fig. 3), without inserted components dropping out. Then, the frame may be moved to a drilling position. For this purpose, the frame is placed on two guide bars 4 where it is retained by stops 6. A compensating plate 7 forces the entire package upwards by mechanical short- stroke means, such as an...