Omnidirectional three-dimensional precision measuring head and high-precision continuous measuring method thereof
A precision measurement, omni-directional technology, applied in the direction of measuring devices, electromagnetic measuring devices, electric/magnetic position measurement, etc., can solve the problem that non-conductive workpieces cannot be measured, the probe cannot be inserted into the hole, and continuous line measurement cannot be realized, etc. problems, to achieve the effect of high detection accuracy, simple structure, and avoid mechanical wear errors
Pending Publication Date: 2020-10-16
成都双创时代科技有限公司
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Problems solved by technology
[0005] During use, it is found that the probe has the following problems: 1. It is required that the workpiece to be tested must be conductive, and it cannot measure non-conductive workpieces.
2. The block probe clamp is too large to measure small holes, and the probe cannot be inserted into the hole
3. Because the probe needle of the probe head cannot be deflected, the workpiece can only be approached from the X and Y directions on the plane, and it cannot be measured in all directions, that is, in the circumferential direction.
4. Only point measurement can be carried out, continuous line measurement cannot be realized
Method used
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Embodiment 1
[0028] Embodiment 1: see Figure 1-Figure 4 , an omnidirectional three-dimensional precision measuring head, comprising a housing 1, the lower end of the housing 1 is provided with a probe mounting part 2, and the probe mounting part 2 is sequentially provided with a Hall sensor 6, an annular Magnets 7, circular magnets 8 and probes 3, the tails of the probes 3 are hemispherical, and the end faces upwards, the tails of the probes 3 are located in the probe mounting part 2, and the probe mounting part 2 The bottom is provided with an arcuate guide groove that facilitates the rotation and return of the hemispherical tail of the probe 3. A tapered horn hole 9 is provided at the center of the bottom of the arcuate guide groove, and the circular magnet 8 is fixed on the end of the probe 3 tail. on the end face, and magnetically repel the ring magnet 7 .
[0029] The present invention utilizes the hemispherical structure at the tail of the probe 3 and the structure of the arc guide...
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The invention discloses an omnidirectional three-dimensional precision measuring head and a high-precision continuous measuring method thereof. A probe mounting part is arranged at the lower end of ashell. A Hall sensor, an annular magnet, a circular magnet and a probe are sequentially arranged in the probe mounting part from top to bottom. The tail portion of the probe is hemispherical, the endface of the tail portion of the probe faces upwards, the bottom of the probe mounting part is provided with a cambered surface guide groove facilitating rotation and return of the hemispherical tail portion of the probe, the center of the bottom of the cambered surface guide groove is provided with a conical horn hole, and the circular magnet is fixed to the end face of the tail portion of the probe and mutually repels the annular magnet in magnetic force. Compared with the prior art, the structure is simpler, the detection precision is higher, omnidirectional measurement can be achieved, andan existing probe is designed on the horizontal plane and can only conduct measurement in limited directions generally. Continuous line measurement can be carried out from any direction.
Description
technical field [0001] The invention relates to three-dimensional precision machinery, in particular to an omnidirectional three-dimensional precision measuring head and a high-precision continuous measuring method thereof. Background technique [0002] A three-dimensional measuring instrument refers to an instrument for measuring by taking three-dimensional points. The basic principle is to obtain the discrete spatial point position of the measured geometric element through the cooperation of the detection sensor (probe) and the movement of the measurement space axis, and then through Certain mathematical calculations, complete the analysis and fitting of the measured points (point groups), and finally restore the measured geometric elements, and on this basis calculate the deviation between them and the theoretical value (nominal value), so as to complete the Inspection work of the parts under test. The existing high-precision three-dimensional measuring instrument has co...
Claims
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IPC IPC(8): G01B7/00
CPCG01B7/003
Inventor 宋彬
Owner 成都双创时代科技有限公司