Workpiece forming die

Abstract

A workpiece forming die is disclosed to solve the problem of decreased machining accuracy caused by inaccurate workpiece alignment. The die assembly includes: a die set having an upper die and a lower die; a positioning die core having an upper pressing surface and a lower pressing surface; a cutting die core, which is positioned in the die set with relative displacement to the positioning die core in a first direction; and a punching die core, which is positioned in the die set with relative displacement to the positioning die core in the first direction, the punching die core having a stamping surface and a contact surface, the stamping surface being opposite the upper pressing surface in a second direction, and the contact surface being opposite the lower pressing surface in the second direction. This improves both machining efficiency and machining accuracy.

Claims

1. A workpiece forming mold, comprising: a mold assembly having an upper mold and a lower mold, the upper mold and the lower mold being opposite each other in a first direction; a positioning mold core having an upper pressing surface and a lower pressing surface, the upper pressing surface being located on the upper mold and the lower pressing surface being located on the lower mold; A cutting die core, which is located in the mold assembly in a first direction and is relatively displaceable from the positioning die core. The cutting die core has an upper cutting edge and a lower cutting edge. The upper cutting edge is located opposite the upper pressing surface in a second direction, and the lower cutting edge is located opposite the lower pressing surface in the second direction. A punching die core, which is located in the mold assembly in the first direction and is relatively displaceable from the positioning die core. The punching die core has a stamping surface and a contact surface. The stamping surface is located opposite the upper pressing surface in the second direction, and the contact surface is located opposite the lower pressing surface in the second direction. The positioning die core is located between the cutting die core and the punching die core.

2. As in request item 1, the workpiece forming mold, wherein, The upper pressing surface and / or the lower pressing surface each have a groove corresponding to a workpiece.

3. As in request item 1, the workpiece forming mold, wherein, The positioning die has at least one positioning post, which is displaceable in the first direction and located in at least one guide groove of the upper die.

4. As in request item 1, the workpiece forming mold, wherein, The upper pressing surface and the lower pressing surface each have an outer edge relative to the first direction. The upper tangent edge is located on the outer edge of the upper pressing surface in the second direction, and the lower tangent edge is located on the outer edge of the lower pressing surface in the second direction.

5. As in request item 1, the workpiece forming mold, wherein, The upper pressing surface and the lower pressing surface each have an inner edge relative to the first direction. The stamping surface is located on the inner edge of the upper pressing surface in the second direction, and the abutting surface is located on the inner edge of the lower pressing surface in the second direction.

6. A method for forming a workpiece using a workpiece forming mold according to any one of claims 1 to 5, comprising: positioning a workpiece between an upper mold and a lower mold, wherein an upper pressing surface of a positioning die core and a lower pressing surface of the positioning die core position the workpiece; displacing a cutting die core relative to the positioning die core to form a step difference between the upper cutting edge and the lower cutting edge and the upper pressing surface and the lower pressing surface, respectively, thereby cutting the positioned workpiece to form a cut workpiece; and displacing a punching die core relative to the positioning die core to form a step difference between the punching surface and the abutting surface and the upper pressing surface and the lower pressing surface, respectively, thereby punching the cut workpiece.

7. As in the workpiece forming method of request item 6, wherein, The upper pressing surface of the positioning die core is positioned on the workpiece by applying a force of 10 to 200 tons and the lower pressing surface.

8. As in request item 6, the workpiece forming method, wherein, The upper pressing surface and the upper cutting edge are separated by a step of 3 to 15 mm, or / and the lower pressing surface and the lower cutting edge are separated by a step of 3 to 15 mm to form the cut workpiece.

9. The workpiece forming method as described in claim 6, wherein, To punch holes in the cut workpiece, the upper pressing surface is made to form a step difference of 2 to 10 mm with the stamping surface, and / or the lower pressing surface is made to form a step difference of 2 to 10 mm with the abutting surface.

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