Procédé et appareil pour fixer une série de bornes de contact électrique à un ouvrage

1,211,507. Assembling electrical terminals on workpieces; angular bending; shearing. AMP. Inc. 17 April, 1969 [30 April, 1968], No. 19659/69. Headings B3A, B3E and B3W. A method of assembling a plurality of electrical contact terminals 2 to a workpiece 4 wherein the terminals are arranged as a strip 26 prior to assembly to the workpiece, the strip comprising parallel rows 28 and columns 30 with a slug strip 32 connecting adjacent rows 28, the method comprising inserting the leading end of each terminal of the leading row into an opening in the workpiece, severing the row from the strip leaving the slug strip 32 connected, securing each terminal in the workpiece and shearing the slug strip from the terminals. The terminals are mounted in a member 7 of a bobbin 4 and at the beginning of the work cycle the ends 16 of the terminals are free. The bobbins are loaded in the machine at a loading and inserting station 70 and a pulley 50 is rotated one revolution, thereby rotating shafts 54, 64. An eccentric 92 reciprocates a slide bar 78 via a connecting rod 88 and feed pawls (94) in the bar 78 advance the bobbins to work stations 72-76 each time the bar moves rightwardly, Fig. 21 (not shown). The bobbins are guided by a bar 106, which has a recess for reception of flanges 8 of the bobbins. The loading and inserting station 70.-Terminal strips 26 are fed over the upper and lower surfaces of plate 36 by feed fingers 144, 1441 which are pivoted on slides 116, 1161 about pins 146, 1461. Notches 122, 1221 in arms 123, 1231 receive pins 120, 1201 and the arms being pivoted at 126 are reciprocated by a rod 132, on which is mounted a cam follower 140. The follower 140 engages in a cam track of a cam 142 mounted for rotation with the shaft 54. A light drag is imposed on the strips 26 by spring biased plates 154, 1541. Cams 230, 232 are mounted for rotation on the shaft 64 and followers cooperating with cam tracks therein respectively reciprocate connecting rods 222, 236. The rod 236 is connected to toggle mechanisms 192, 201 and 1921, 2011 by connecting rods (238), (240), and (2381), (2401) respectively, Fig. 14 (not shown), and as the rod 236 moves rightwardly shear blades 184, 1841 are driven downwardly to shear the leading row of terminals from the strips 26. Simultaneously the connecting rod 222 via a lever (216) and rods 210, (2101) actuates toggle mechanisms 190, 200 and 1901, 2001 to move clamps 186, 1861 downwardly and hold the strips 26 as they are sheared. The to