Numerical control machine tool with precise workpiece positioning function

Abstract

The invention belongs to the technical field of machining, and provides a numerical control machine tool with a precise workpiece positioning function. The numerical control machine tool with the precise workpiece positioning function comprises a machine tool base, a workbench and a material pressing mechanism used for pressing a workpiece on the workbench are arranged on the machine tool base, the material pressing mechanism comprises material pressing rods, a material pressing rod driving device, and a fixing frame used for fixing the material pressing rods and the material pressing rod driving device, the machine tool further comprises a material pressing rod detection device, the material pressing rods of no less than two specifications can be placed, when the workpiece is placed on the workbench of the machine tool, one material pressing rod conforming to the size of the workpiece is selected from the material pressing rod detection device, the material pressing rod driving deviceis fixed on the fixing frame, the material pressing rod is connected to a telescopic rod of the material pressing rod driving device, under the action of the material pressing rod driving device, thematerial pressing rod moves downwards, and the workpiece is tightly pressed. According to the machine tool, the material pressing rod detection device is arranged, the material pressing rods of the multiple specifications are provided, so that the finish degree of the machine tool is enhanced, and the operation efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of machining, and specifically discloses a numerically controlled machine tool with precise workpiece positioning. Background technique [0002] The stability of workpiece positioning is an important factor affecting the machining accuracy of machine tools. Existing CNC machine tools that use a press bar to fix the workpiece generally only have one press bar, and it is impossible to detect whether the press bar matches the size of the part. Although the operation is simple, it affects the finish of the part. If the press bar When pressing the material, if it does not match the size of the part, it will easily lead to the loosening of the part or the inability to completely compress the part to be processed. When milling the part, it is easy for the milling cutter to not pass the milling surface of the part to be processed accurately, resulting in errors, such as parts The size of the processed surface is in...

AI Technical Summary

Problems solved by technology

Existing CNC machine tools that use a press bar to fix the workpiece generally only have one press bar, and it is impossible to detect whether the press bar matches the size of the part. Although the operation is simple, it affects the finish of the part. If the press bar When pressing the material, if it does not match the size of the part, it will easily lead to the loosening of the part or the inability to completely compress the part to be processed. When milling the part, it is easy for the milling cutter to not pass through the milling surface of the part to be processed accurately, resulting in errors, such as parts The size of the processed surface is inconsistent, causing unnecessary loss

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