A method for determining the radius of the plane equal-radius circle domain division based on the sum of the angular distance ratios of the orthodontic archwire bending points

Abstract

The invention discloses a method for determining the radius of a plane equal-radius circle domain division based on the angular distance ratio of orthodontic archwire bending points, which relates to the technical field of orthodontic archwire bending. A kind of orthodontic arch wire curve, based on the orthodontic arch wire curve bending point information set, the robot bending information set of the bending point, combined with the motion characteristics of the robot bending orthodontic arch wire, to establish an orthodontic arch wire based on the orthodontic arch wire. The method of determining the radius of the plane equal-radius circle domain division of the angular distance ratio of the wire bending point and the sum. The technical points are as follows: import the circular domain division data and convert the orthodontic archwire curve T into a plane curve T′; determine the initial value n of the equal-radius circular domain divisions according to the angle distance ratio information of the bending points; divide the equal-radius to determine the circular domain ;Find the optimal number of divisions; output a reasonable angular distance ratio and equal radius circle domain division radius r equal . The invention adopts the angular distance ratio and the judgment adjustment to try to divide the number of circle domains, determines the division radius value of the equal radius circle domain with a reasonable angular distance ratio, improves the efficiency of the equal radius circle domain division, and further improves the efficiency of orthodontic archwire bending planning , to avoid the complicated problem of interference and bending in the process of robot bending of orthodontic arch wires.

Description

technical field [0001] The patent of the present invention relates to a method for determining the radius of a plane equal-radius circular domain division based on the ratio of the angle-to-distance ratio of orthodontic archwire bending points, and belongs to the technical field of orthodontic archwire bending. Background technique [0002] Malocclusion is the third largest oral disease that endangers human health, showing a high incidence rate. In modern stomatology, fixed orthodontics is a commonly used and effective orthodontic treatment, and the bending of orthodontic archwires is a fixed In recent years, the key to orthodontic technology has been deeply influenced by digital manufacturing technology. The traditional oral manufacturing process is undergoing revolutionary changes. The field of orthodontics is also benefiting from digital technology. The processing of arch wires in orthodontic appliances is becoming digital. develop. [0003] In the process of bending the...

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Problems solved by technology

[0005] In view of the above-mentioned problems, the present invention proposes a method for determining the radius of a plane equal-radius circular domain based on the ratio of the angle-to-distance ratio of orthodontic archwire bending points, and solves the lack of a class of overall units for planning in the current orthodontic archwire bending technology field. The method of determining the radius of the equal-radius circles in the orthodontic archwire bending sequence with a relatively small density of bending points. In the process of determining the radius of the equal-radius circles, a reasonable circle limit parameter is proposed, only for equal-radius circles Quantitative constraints on the bending complexity of the bending points divided by the domain, and a series of reasonable angle-to-distance ratio equal-radius circular domains with reasonable angle-to-distance ratios that meet the requirements for the bending complexity of the bending points in the region are obtained, and finally a curve suitable for planning such orthodontic archwires is obtained. The division radius of the equal-radius circular domain of the bending point provides convenience for the division method of the equal-radius circular domain used in the planning of a class of orthodontic archwire bending with special attributes, thereby improving the efficiency of orthodontic archwire bending planning , to maximize the advantages of the bending robot, to ensure the normal operation of the orthodontic archwire bending process, and to avoid the problem of interference in the process of bending such orthodontic archwires by robots

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