A variable depth chamfering processing method for the side of a spiral fan magnetic pole

A processing method and screw fan technology, applied in metal processing, metal processing equipment, metal processing machinery parts, etc., can solve the difficulty in precise processing of variable depth chamfering on the side of the spiral fan magnetic pole, and cannot provide variable depth chamfering graphics, etc. problem, to achieve the effect of improving accuracy, reducing asymmetry, and improving overall performance

Active Publication Date: 2021-07-16
CHINA INSTITUTE OF ATOMIC ENERGY
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] For the magnetic field of the spiral fan, the side of the magnetic pole is often composed of multiple disconnected segments. Most of the current mechanical design software, such as solidwork, only provides the function of generating chamfering graphics with a fixed depth on the side of the magnetic pole, but cannot provide chamfering with variable depths. The generation of graphics; while modern machine tool processing often needs to be processed according to the three-dimensional mechanical model diagram, it is difficult to accurately process the variable depth chamfering on the side of the spiral fan magnetic pole

Method used

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  • A variable depth chamfering processing method for the side of a spiral fan magnetic pole
  • A variable depth chamfering processing method for the side of a spiral fan magnetic pole
  • A variable depth chamfering processing method for the side of a spiral fan magnetic pole

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Embodiment

[0053] A 230MeV superconducting proton cyclotron adopts a four-fan spiral fan magnetic pole structure, with a total of 8 magnetic poles. The inner radius of each magnetic pole is 160mm, the outer radius is 850mm, and the two sides are spiral. The physical design requires magnetic poles The magnetic field is corrected by side chamfering, and the bevel angle of chamfering is 45 degrees. figure 2 As shown, the physical calculation gives a curve of chamfer depth changing with radius as figure 1 As shown, it is used for the processing of magnetic pole chamfering. 3D modeling software such as Solidwork cannot accurately give the cutting model of the chamfer depth changing with the radius. It is necessary to borrow the Boolean operation of the software to generate the cutting model. The steps are as follows:

[0054] Step 1. First calculate a shape body with variable depth chamfering on the side of the spiral fan magnetic pole as the cutting body;

[0055] Specifically:

[0056] ...

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Abstract

The invention discloses a processing method for variable-depth chamfering of the side of a spiral fan magnetic pole, comprising the following steps: firstly calculating a shape body of variable-depth chamfering of the side of a spiral fan magnetic pole as a cutting body; Perform Boolean subtraction operation on the spiral fan magnetic pole shape with chamfering at variable depth, so as to complete the cutting of the spiral fan magnetic pole side by the cutting body, and generate the chamfered spiral fan magnetic pole three-dimensional model after cutting; it will be completed The three-dimensional model of the spiral fan magnetic pole after processing chamfering is imported into the machine tool processing software to complete the processing program. The invention solves the problem of variable-depth chamfering processing on the side of the magnetic pole of the spiral fan in the cyclotron by establishing a variable-depth chamfering cutting body and a two-fold line angle bisector model, and realizes high-precision variable-depth chamfering through the Boolean operation function of the mechanical software. The corner cutting model helps to improve the consistency of chamfering of multiple magnets, reduce the asymmetry of the magnetic field, and improve the overall performance of the accelerator.

Description

technical field [0001] The invention belongs to the technical field of cyclotrons, and in particular relates to a method for chamfering the sides of spiral fan magnetic poles with variable depth. Background technique [0002] In a superconducting proton cyclotron, the magnetic field is very saturated. In order to reduce the local magnetic field saturation, the physical design requires that the magnetic field be corrected by chamfering the side of the magnetic pole; for different radii, the amount of the corrected magnetic field is different, and the physical calculation will be Give a curve of chamfer depth changing with radius, which is used for the processing of magnetic pole chamfer. [0003] For the magnetic field of the spiral fan, the side of the magnetic pole is often composed of multiple disconnected segments. Most of the current mechanical design software, such as solidwork, only provides the function of generating chamfering graphics with a fixed depth on the side ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23Q15/04
CPCB23Q15/04
Inventor 李明张天爵崔涛王川林军
Owner CHINA INSTITUTE OF ATOMIC ENERGY
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