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Numerical control machine tool space positioning precision detection device and method

A space positioning and CNC machine tool technology, applied in the direction of measuring/indicating equipment, metal processing machinery parts, metal processing equipment, etc., can solve the problems of low efficiency, high cost, small detection range, etc., to reduce the cost of use, sensitive response, The effect of ensuring the detection accuracy

Pending Publication Date: 2021-12-10
CHENGDU AIRCRAFT INDUSTRY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The main purpose of this application is to provide a device and method for detecting the spatial positioning accuracy of CNC machine tools, aiming to solve the technical problems of the existing detection methods for the spatial positioning accuracy of CNC machine tools such as small detection range, low efficiency, and high cost

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  • Numerical control machine tool space positioning precision detection device and method
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  • Numerical control machine tool space positioning precision detection device and method

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Embodiment 1

[0046] refer to Figure 1-Figure 4 , the present embodiment provides a kind of numerical control machine tool spatial positioning accuracy detection device, described numerical control machine tool comprises two machine tool columns 110 that are arranged oppositely; N positioning rings 120 are arranged on the opposite side, that is, there are 2N positioning rings 120 in total, and a three-dimensional space is enclosed between all positioning rings 120; wherein, N is a natural number greater than or equal to 2, that is, the number of positioning rings 120 is at least 4 One, the more the quantity, the higher the measurement accuracy, the wire ruler box 131 is equal to the quantity of the positioning ring 120, the wire ruler box 131 is respectively arranged on the machine tool column 110 near the position of the corresponding positioning ring 120, each wire ruler box 131 The self-returning measurement line 132 of the self-returning measurement line 132 moves through the positioni...

Embodiment 2

[0065] refer to Figure 1-Figure 4 , the present embodiment provides a detection method based on the detection device for spatial positioning accuracy of a numerically controlled machine tool described in Embodiment 1, comprising the following steps:

[0066] Acquiring the central coordinates of the three-dimensional space enclosed by the positioning ring 120, and using the acquired central coordinates as the starting position for measurement;

[0067] Make the machine tool spindle 150 drive the detection mechanism 140 to move from the measurement starting position to the measurement position in the three-dimensional space;

[0068] Constructing a distance equation based on the distance between the self-returning measurement line 132 and the detection mechanism 140 in different directions;

[0069] Obtain the actual coordinates of the detection mechanism 140 at the measurement position, compare the actual coordinates with the theoretical position coordinates of the detection ...

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Abstract

The invention discloses a numerical control machine tool space positioning precision detection device and method. A numerical control machine tool comprises two oppositely-arranged machine tool stand columns. The device comprises positioning rings, line ruler boxes and a detection mechanism. The opposite faces of the two machine tool stand columns are each provided with N positioning rings, and a three-dimensional space is defined by all the positioning rings. N is a natural number larger than or equal to 2, the number of the line ruler boxes is equal to that of the positioning rings, the line ruler boxes are arranged at the positions, close to the corresponding positioning rings, of the machine tool stand columns respectively, the self-recovery measuring line of each line ruler box movably penetrates through the positioning ring at the corresponding position, and the line end of the self-recovery measuring line of each line ruler box is connected with a connector. The detection mechanism is located between the two machine tool stand columns, one end of the detection mechanism is used for being connected with a machine tool spindle, the other end of the detection mechanism is used for being connected with each connector, and the detection device has the advantages of being wide in detection range, high in efficiency and low in cost.

Description

technical field [0001] The present application relates to the technical field of machine tool space detection, and in particular to a device and method for detecting spatial positioning accuracy of a numerically controlled machine tool. Background technique [0002] Large-scale gantry CNC machine tools can keep the workpiece to be processed still, and can realize large-scale processing only by moving the tool. It has unique advantages in the processing of large-scale aviation and aerospace structural parts. However, due to factors such as long machining strokes, large gantry spans, and heavy motion units, the spatial positioning error of gantry five-axis CNC machine tools is relatively large, and it is always difficult to effectively guarantee the machining accuracy. Even if the design cost is ignored, the machine tool has a high original precision through various design methods, the key components of the machine tool will wear out with the processing process, and the machin...

Claims

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Application Information

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IPC IPC(8): B23Q17/00
CPCB23Q17/00
Inventor 李仁政李杰牟文平李卫东高鑫沈昕彭雨王鹏程
Owner CHENGDU AIRCRAFT INDUSTRY GROUP