Fourth-axis center height detection tool and fourth-axis center height detection method

Abstract

The invention discloses a fourth-axis center height detection tool and a fourth-axis center height detection method. The detection tool comprises a detection platform, a standard block and a distancemeasurement device, wherein the standard block can be positioned and placed on the surface of the detection platform, the lower-end surface of the standard block is tightly attached to the upper-sidehorizontal plane of the detection platform, and the distance measurement device can measure the distance between the upper-end surface of the standard block and the upper-side horizontal plane of thedetection platform and the distance between the horizontal plane at one side, back towards the fourth axis, of a fourth-axis base and the highest point in an outer circle of a flange disc. The detection method comprises steps: a grating ruler is firstly used to detect the standard block on the detection platform and zeroing is carried out; and the grating ruler is then used to measure the distancebetween the bottom surface of the fourth-axis base and the highest point in the outer circle of the fourth-axis flange disc to acquire offset between the fourth-axis center height and a standard value. Real-time online detection can be realized, the detection efficiency is high, the detection precision is high, and the fourth-axis processing efficiency and the processing precision can be improved.

Description

technical field [0001] The invention relates to a checking tool and a testing method, in particular to a checking tool for the center height of the fourth axis and a testing method for the center height of the fourth axis. Background technique [0002] In CNC machining, in order to realize that multiple surfaces can be processed in one clamping, it is necessary to use a fourth-axis jig to form a four-axis machining on the basis of three-axis linkage, and the fourth-axis jig is used to position the workpiece during machining. The flange plate needs to be processed accurately. When processing the outer circle of the flange plate, it is necessary to ensure the height distance between the center of the fourth axis and the bottom surface of the base. However, this distance is difficult to detect, and it is often necessary to disassemble the entire carrier from the processing machine tool. Down to carry out projection detection and other methods for detection, the detection effici...

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Problems solved by technology

[0002] In CNC machining, in order to realize that multiple surfaces can be processed in one clamping, it is necessary to use a fourth-axis jig to form a four-axis machining on the basis of three-axis linkage, and the fourth-axis jig is used to position the workpiece during machining. The flange plate needs to be processed accurately. When processing the outer circle of the flange plate, it is necessary to ensure the height distance between the center of the fourth axis and the bottom surface of the base. However, this distance is difficult to detect, and it is often necessary to disassemble the entire carrier from the processing machine tool. The detection efficiency is low, and the repeated disassembly and assembly will affect the processing accuracy.

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