Design method of worktable underframe of PCB numerical control forming machine

Abstract

The invention discloses a design method of a worktable underframe of a PCB numerical control forming machine. The method comprises the following steps of: firstly, determining the apparent size of the worktable underframe according to production requirements; then establishing a 3D module of the worktable underframe, and presetting the positions of control points and nut control points on the bottom surface of the 3D module of the worktable underframe; and then analyzing the 3D module statically, dynamically and modally, and modifying the positions of the control points till to reach the design target; and then analyzing the casting feasibility of the 3D module: if not feasible, modifying the 3D module; if feasible, manufacturing the module of the worktable underframe; and finally testing the module of the worktable underframe in static state, dynamic state and vibration noise: if unqualified, modifying the 3D module; and if qualified, producing the module in mass. The design method can design large-scale worktable underframes which have enough rigidity and can guarantee the machining precision of spare parts.

Description

technical field [0001] The present invention relates to the technical field of PCB (ie Printed Circuit Board, Printed Circuit Board) numerical control forming machine, and more specifically, relates to a design method for the workbench underframe of a PCB numerical control forming machine. Background technique [0002] Among the various components of the entire PCB CNC forming machine, the workbench underframe plays a key role in supporting the workpiece and connecting the driving source. The workbench underframe generally includes a workbench underframe main body, a nut control point located at the center of the bottom surface of the workbench underframe main body, and several control points located on the bottom surface of the workbench underframe main body. The PCB numerical control forming machine is provided with a linear guide rail corresponding to the plurality of control points, and the linear guide rail includes sliders whose number corresponds to the control points...

AI Technical Summary

Problems solved by technology

The underframe of the workbench in the prior art often has insufficient rigidity due to unreasonable structural design. When the modal is too low, various deformations and vibrations are likely to occur between the tool and the workpiece during processing, which will reduce the machining accuracy of the part.

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