Patent ID: 8485509
Filing Date: 2013-07-16
Classification: B24B,B25J

Abstract:
1. A fixing mechanism for positioning a workpiece comprising a bottom board, a first sidewall and a second sidewall, the first sidewall and the second sidewall each extending from a periphery of the bottom board and facing each other, the fixing mechanism comprising: a fixed member comprising a first baseboard and a first claw block extending perpendicularly from the first baseboard, the first claw block comprising a first positioning surface and a first claw portion, the first positioning surface being on an end of the first claw block away from the first baseboard and configured for abutting the bottom board of the workpiece, and the first claw portion being adjacent to the first positioning surface and configured for abutting an inner surface of the first sidewall of the workpiece; a movable member comprising a second baseboard and a second claw block extending perpendicularly from the second baseboard, the second claw block comprising a second positioning surface and a second claw portion, the second positioning surface being on an end of the second claw block away from the second baseboard and configured for abutting the bottom board of the workpiece, and the second claw portion being adjacent to the second positioning surface and configured for abutting an inner surface of the second sidewall of the workpiece; and a driving member; wherein the movable member is movably connected to the fixed member via the driving member; and the driving member is configured for moving the movable member in a direction away from the first claw portion of the fixed member; wherein the driving member comprises a threaded portion and a positioning portion adjacent to the threaded portion, the positioning portion of the driving member has no screw thread and has a diameter less than a diameter of the threaded portion, the fixed member defines a positioning hole to receive the positioning portion, and the positioning portion is rotatably received in the positioning hole; wherein the movable member defines a threaded hole, and the threaded portion engages in the threaded hole; and wherein the positioning hole comprises an inner sidewall, the inner sidewall defines a stepped portion thereon, the threaded portion of the driving member comprises a first end and a second end opposite to the first end, and the first end abuts the stepped portion.