| 摘要 |
An assembly for positioning sheet metal on a sheet metal brake includes a coarse adjustment mechanism and a fine adjustment mechanism for respectively setting approximate and accurate positions of the sheet metal. Preferably, a mounting structure is removably mountable on front and rear beams of the brake via a pair of respective clamping mechanisms connected to respective mounting legs extending from a hollow tube. One mounting leg is movably connected to the tube for adjusting spacing between the mounting legs to facilitate mounting on the beams. A support arm is slidably received by the hollow tube to provide coarse adjustment. The support arm includes an upwardly extending portion on which is disposed a shelf for supporting an edge of the sheet metal. A threaded member threadably engages the upper portion of the support arm to finely adjust the position of the shelf and piece of sheet metal.
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