CN-116045804-B - Three-dimensional space positioning device for laser scanning

Abstract

The application provides a three-dimensional space positioning device for laser scanning, which is provided with reflective mark points and is fixed on an object to be scanned. The method has the advantages that the mark points do not need to be pasted on the object to be scanned, time and labor are saved, the efficiency is high, and meanwhile, the damage to the object to be scanned caused by pasting the mark points on the surface of the object to be scanned is avoided. And the marked points can be reused, so that the cost is reduced.

Inventors

• WANG XIN
• Wei Fuqia
• YAN KUN
• HUANG BIYU
• ZHONG YINGYING
• ZHENG YUXIA
• GUO MINGKE
• ZHANG RUI

Assignees

• 航天科工防御技术研究试验中心

Dates

Publication Date

20260505

Application Date

20221222

Claims (6)

1. 1. A three-dimensional spatial positioning device for laser scanning, comprising: A positioning device and a bracket; the positioning device is provided with marking points, and the bracket is used for connecting the positioning device with an object to be scanned and positioning the positioning device; The support comprises a positioning device connecting end and an object connecting end, wherein the positioning device connecting end is hinged with the positioning device; The positioning device further comprises a supporting structure, wherein the supporting structure comprises a connecting end and a free end, the connecting end is sleeved on the periphery of the positioning device, and the free end is abutted against the outer wall of the object to be scanned; the free end comprises at least two support rods with preset included angles, and one end, far away from the connecting end, of each support rod is of a conical structure.
2. 2. The three-dimensional space-addressing device of claim 1, wherein the addressing device is provided with a telescoping structure by which the addressing device can be changed in length.
3. 3. The three-dimensional space positioning device according to claim 1, wherein the positioning device is provided with a splice structure, and a plurality of the positioning devices can be spliced by the splice structure.
4. 4. The three-dimensional space positioning device of claim 1 wherein the support further comprises a spacer structure disposed on a side of the object connection end remote from the object to be scanned.
5. 5. The three-dimensional space positioning device of claim 1 wherein the support structure further comprises a locking assembly disposed on the connection end, the support structure being movable along the positioning device when the locking assembly is in an unlocked state, the support structure being prevented from relative movement with the positioning device when the locking assembly is in a locked state.
6. 6. The three-dimensional space-positioning device according to claim 1, wherein the marking points are provided with an adhesive, and the marking points are fixed to the positioning device by the adhesive.

Description

Three-dimensional space positioning device for laser scanning Technical Field The application relates to the technical field of laser scanning, in particular to a three-dimensional space positioning device for laser scanning. Background In the process of scanning a large structural member by using a three-dimensional laser scanner, the related technology needs to paste reflective mark points on the surface of a scanned object, which is time-consuming, labor-consuming and low in efficiency, and meanwhile, the mark points pasted on the surface of the scanned object inevitably cause different degrees of damage to the surface of the scanned object in the process of removing the mark points after scanning, and part of colloid is remained on the surface of the object. When different scanned objects are scanned, new mark points are required to be stuck on the scanned objects, and the cost is high. Disclosure of Invention In view of the above, the present application is directed to a three-dimensional positioning device for laser scanning. Based on the above object, the present application provides a three-dimensional space positioning device for laser scanning, comprising: A positioning device and a bracket; The positioning device is provided with marking points, and the bracket is used for connecting the positioning device with an object to be scanned and positioning the positioning device. From the above, it can be seen that the three-dimensional space positioning device for laser scanning provided by the application is provided with reflective mark points on the positioning device and the positioning device is fixed on an object to be scanned. The method has the advantages that the mark points do not need to be pasted on the object to be scanned, time and labor are saved, the efficiency is high, and meanwhile, the damage to the object to be scanned caused by pasting the mark points on the surface of the object to be scanned is avoided. And the marked points can be reused, so that the cost is reduced. Drawings In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Fig. 1 is a schematic view of a three-dimensional positioning device according to an embodiment of the present application mounted on an object to be scanned. Fig. 2 is a schematic structural diagram of a three-dimensional space positioning device according to an embodiment of the application. Fig. 3 is a schematic structural view of a bracket according to an embodiment of the present application. Fig. 4 is a schematic structural view of a support structure according to an embodiment of the present application. The reference numerals comprise a positioning device 1, a bracket 2, an object 3 to be scanned, a supporting structure 4, a positioning device connecting end 201, an object connecting end 202, a cushion block structure 203, a connecting end 401, a locking assembly 402, a supporting rod 403 and a conical structure 404. Detailed Description The present application will be further described in detail below with reference to specific embodiments and with reference to the accompanying drawings, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be noted that unless otherwise defined, technical or scientific terms used in the embodiments of the present application should be given the ordinary meaning as understood by one of ordinary skill in the art to which the present disclosure pertains. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed. In the process of scanning a large structural member by using a three-dimensional laser scanner, reflective mark points are generally required to be stuck on the surface of an object to be scanned, the reflective mark points are round stickable points with reflective substances on the surface, the diameters generally comprise different specifications such as phi 3mm, phi 6mm and phi 12mm, in the working process, the mark points are required to be uniformly distributed on the whole surface of the object to be scanned, the distribution among the mark points cannot be too dense or too sparse, and the linear arrangement or regular distribution of the mark points is avoided. Therefore