Auxiliary tool for machining B type gamma knife treatment head part and machining method

Abstract

The invention provides an auxiliary tool for machining a B type gamma knife treatment head part. The auxiliary tool comprises a roller and a rotating disc; the axis of the roller is perpendicular to the axis of the rotating disc; a rotating disc bearing is arranged between the roller and the rotating disc; the rotating disc is provided with a machining hole for machining the B type gamma knife treatment head part; a mounting hole for clamping the B type gamma knife treatment head part is formed in the bottom of the machining hole; the axis of the mounting hole is vertically intersected with the center line of the roller; and the rotating disc bearing on the center line of the mounting hole is provided with a fixed block for preventing rotation of an inner ring and an outer ring of the rotating disc bearing. In addition, the invention further provides a method for machining the B type gamma knife treatment head part by the auxiliary tool. The auxiliary tool satisfies the assembly requirements during and after machining; and the final precision of assembling the B type gamma knife treatment head part reaches within S phi 0.3-0.2 mm.

Description

technical field [0001] The invention belongs to the technical field of processing a B-type Gamma Knife treatment head, and in particular relates to an auxiliary tool and a processing method for processing parts of a B-type Gamma Knife treatment head. Background technique [0002] The installation part of the B-type Gamma Knife treatment head is the key part of the Gamma Knife treatment part, and its assembly accuracy directly affects the treatment effect and treatment range of the Gamma Knife. In the past, due to the inability to improve the assembly accuracy of the treatment head installation parts, it was seriously affected that the B-type Gamma Knife could only treat the parts of the body with sparse nerve distribution, and could not directly treat the parts of the body with dense nerve distribution, which greatly reduced the scope of use of the equipment. . Due to the heavy weight and eccentricity of each part of the installation part of the Gamma Knife treatment head, ...

AI Technical Summary

Problems solved by technology

In the past, due to the inability to improve the assembly accuracy of the treatment head installation parts, it was seriously affected that the B-type Gamma Knife could only treat the parts of the body with sparse nerve distribution, but could not directly treat the parts of the body with dense nerve distribution, which greatly reduced the scope of use of the equipment.

Due to the large weight and eccentricity of each part of the Gamma Knife treatment head installation parts, the large matching contact area, various parts are assembled directly in the assembly, and there are many moving parts. Although the dimensional tolerance and shape tolerance of the parts are in the Each process meets the requirements of the drawing design, but in the assembly process, due to the tolerance of the parts and the specific performance of the bearing itself, the accumulated error is too large, and it is not easy to control and eliminate, resulting in the best accuracy of the Gamma Knife installed parts after assembly. It can only be maintained between SΦ0.5mm~SΦ0.6mm, which cannot meet and realize the use requirements of Gamma Knife in the actual medical process

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