| 摘要 |
This invention relates to a device which holds sheet metal up to a brake press stops. A brake press is a machine for forming metal. They vary from a few tons, to hundreds of tons. The size may also vary from a few feet to many feet in length. On the back of a brake press there is usually a metal rail the length of the press, mounted one way or another to the machine. This rail is known as a back rail, this is the rail where the stop's are mounted. The stops are what the material hits when it is pushed into the press, the distance between the stop and the bending point of the top die will be the inside dimension of the bend. Because the stops are mounted on the rail, when the rail is moved the stops also move. The reason the rail is moved is so the operator can achieve a different size bend. For example, if the operator was forming a half inch bend, and then wished to form an eighteen inch bend, then he would move the back rail out further by seventeen and a half inches. This is where the brake press back gauge material support arms come into play. As the material is pushed into the brake press, it has a tendency to fall down before it hits the stops, but if the support arms are mounted on the back rail and adjusted properly, they will hold the material level with the stops therefore resulting in an accurate size bend.
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