Common pendulum shaft device for numerical control engraving and milling machine tool

Abstract

The invention discloses a common pendulum shaft device for a numerical control engraving and milling machine tool. The common pendulum shaft device comprises a Z-direction bealock sliding plate (1), an electric main shaft (2), a harmonic reduction box (3), a servo motor (5) and a rotating shaft (5). A bealock is arranged at the lower portion of the Z-direction bealock sliding plate, and a ball nut and a roller guide rail are arranged on the back face of the Z-direction bealock sliding plate; the electric main shaft is rotationally located in the bealock through the rotating shaft, the harmonic reduction box is fixed to the right side face of the Z-direction bealock sliding plate, the servo motor is fixed to the right side face of the harmonic reduction box, the output end of the harmonic reduction box is connected with the rotating shaft, and the output end of the servo motor is connected with the input end of the harmonic reduction box; and when the common pendulum shaft device is applied, the device is replaced and installed at the position of a Z-directional shaft of the numerical control engraving and milling machine tool, and therefore the numerical control engraving and milling machine tool has the Y and Z direction rotation fourth shaft machining capacity, machining requirements of middle and small-sized enterprises are achieved, the running cost can be reduced, waste generated by leaving unused is avoided, and the aim of reducing composite cost is achieved.

Description

technical field [0001] The invention relates to a numerically controlled engraving and milling machine tool, in particular to a general-purpose pendulum shaft device of the numerically controlled engraving and milling machine tool which is installed at the Z axis of the numerically controlled engraving and milling machine tool so that the numerically controlled engraving and milling machine tool has the function of rotating the fourth axis at the same time. Background technique [0002] The prior art CNC engraving and milling machine tools are usually equipped with the X axis of the front and rear reciprocating linear motion axis, the Y axis of the left and right reciprocating linear motion axis, and the Z axis of the up and down reciprocating linear motion axis, that is, the XYZ three axes. Therefore, CNC engraving and milling The machine tool has the engraving, milling and cutting processing function of three-dimensional space linear search; for the processing of complex wo...

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Problems solved by technology

[0002] The prior art CNC engraving and milling machine tools are usually equipped with the X axis of the front and rear reciprocating linear motion axis, the Y axis of the left and right reciprocating linear motion axis, and the Z axis of the up and down reciprocating linear motion axis, that is, the XYZ three axes. Therefore, CNC engraving and milling The machine tool has the engraving, milling and cutting processing function of three-dimensional space linear search; for the processing of complex workpieces, only the ability of XYZ three-axis linear motion search is not enough, and the fourth axis of YZ plane rotation and the fifth axis of XY plane rotation are also required , while CNC machine tools with four-axis or five-axis processing capabilities are called machining centers; for small and medium-sized enterprises, the purchase price of machining centers is expensive, the processing and operation costs are high, and after purchase, the idle utilization rate is low and the overall cost is high. As a result, small and medium-sized enterprises are unbearable and have a dilemma. Therefore, the existing technology has the problem and deficiency of high cost

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