| 摘要 |
A combination workpiece positioning, hold-down and anti-kickback device for a work table (12) having a fence (22) against which a workpiece (24) is guided, includes a non-rotatable positioning member (28) having an arcuate cam surface (32) at one edge for engaging a side surface of a workpiece on the work table; an adjustment device (38) for moving the positioning member in lengthwise and transverse directions; a pivot (36) pivotally; a spring (88) connected between the positioning member and the adjustment device for biasing the positioning member in a pivot direction into engagement with the side surface of the workpiece; a variable tensioning device (94); a non-rotatable hold-down member (128) having a second arcuate cam surface (132) at one edge for engaging an upper surface of the workpiece; an adjustment device (138); a pivot(136) pivotally mounting the hold-down member to the second adjustment device; a second spring (188) connected between the hold-down member and the adjustment device (194); of a second variable tensioning device for variably adjusting the biasing force of the second spring.
|
