An on-site measurement method
A measurement method and geometric measurement technology, which is applied in the direction of measuring/indicating equipment, metal processing equipment, metal processing machinery parts, etc., can solve the problems that machine tool users are difficult to obtain, such as the geometric information of the machine tool motion axis and the unopened motion controller interface, etc., to achieve The effect of great application value, high flexibility, and large measurement range
Active Publication Date: 2019-06-28
THE HONG KONG POLYTECHNIC UNIV
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Problems solved by technology
In conjunction with in-situ measurement, the measurement sensor is installed on the machine tool, and the sensor is driven by the motion axis of the machine tool to scan the workpiece to obtain the complete geometric information of the workpiece. However, the general machine tool does not open the interface of its motion controller. For machine tool users It is difficult to directly obtain the geometric information of the motion axis of the machine tool
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[0039] In order to make the technical purpose, technical solution and technical effect of the present invention clearer, so that those skilled in the art can understand and implement the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0040] refer to figure 1 , figure 1 It is a schematic diagram of the in-situ measurement device of the embodiment of the present invention.
[0041] In the present invention, it is adopted such as figure 1 The shown in-situ measuring device realizes in-situ measurement of a workpiece installed on a machine tool.
[0042] A common machine tool 7 includes a first clamping and moving mechanism for clamping and moving the workpiece, a processing tool for processing the workpiece, and a second clamping and moving mechanism for clamping and moving the processing tool. Here, the processing tool may be a turning tool, a planer, a milling cutter, a broa...
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The invention provides an in-site measurement method. The in-site measurement method comprises the following steps that S1, a sensor module (12) is mounted on a spindle of a machining tool of a machine tool; and S2, the spindle is driven, the sensor module (12) and a workpiece relatively move in a non-contact manner, the sensor module (12) scans the to-be-measured surface of the workpiece in the relative motion process of the sensor module (12) and the workpiece, therefore, the position information of the to-be-measured surface of the workpiece relative to the sensor module (12) is acquired, and then the size information of the to-be-measured surface of the workpiece is calculated and acquired based on the movement information of relative movement of the sensor module (12) and the workpiece and the position information, acquired by the sensor module (12), of the to-be-measured surface of the workpiece relative to the sensor module (12). According to the in-site measurement method, a geometric movement shaft of the machine tool is utilized for driving a sensor for scanning, wide-dynamic-range surface measurement can be achieved, and the beneficial effects of the high resolution and the large measuring span are achieved.
Description
technical field [0001] The invention relates to an on-site measurement method based on multiple sensors, in particular to a method for on-site measurement of surface topography with a large dynamic range on a precision machine tool. Background technique [0002] As people's requirements for products are getting higher and higher, precision machining technology has been widely used and provides irreplaceable services for all walks of life. Whether the workpiece meets the design requirements must be judged by measuring the workpiece. The general method is to remove the workpiece from the machine tool and put it on the measuring instrument for measurement. If it does not meet the requirements, the workpiece must be installed on the machine tool again for processing. However, repeated installation of the workpiece will bring non-negligible errors; specifically, when the workpiece is installed on the machine tool again, the workpiece coordinates will have a certain offset, which ...
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IPC IPC(8): B23Q17/20
CPCB23Q17/20
Inventor 刘明宇张志辉赖锦棠何丽婷
Owner THE HONG KONG POLYTECHNIC UNIV