| 摘要 |
<p>A form-cutting machine is disclosed for cutting a form in a flat surface of a sheet of material such as glass in response to a numerical control signal, the shape of the form being determined by the numerical control signal. The form-cutting machine comprises a frame, sheet-support means for supporting the sheet of material to be cut, an X-direction carriage-positioning assembly, a Y-direction carriage-positioning assembly, and a tool carriage having a cutting tool mounted on it so that the cutting tool can be positioned in a plane in which the cut is to be made. Each carriage-positioning assembly includes a carriage support member which extends generally perpendicular to a direction of motion, two guide members fixed to the frame which are spaced apart from one another and extend generally parallel to the direction of motion, and two sliders connected to ends of the carriage support member and slideably mounted on the two guide members. Each carriage-positioning assembly also includes a drive motor fixedly secured to the frame for moving the carriage-support member and toothed-belt means for connecting the drive motor and the carriage support member so that motion produced by a motor is imparted to the support member with substantially no slippage. The tool carriage is slideably mounted on the two substantially perpendicular carriage-support members, so that moving the carriage support members causes the cutting tool to move in a plane. The form-cutting machine further comprises circuit means connected to the drive motors so that the carriage support members and, consequently the tool carriage, are positioned in response to the numerical control signal.</p> |
