A compact cyclotron shimming tool for different energies

Abstract

The present invention discloses a compact cyclotron strip shimming tool for different energies, comprising: a strip support fixed on a machine tool, the strip support being used to cooperate with the machine tool; a head support arranged near one end of the strip support, the head support being used to coincide with the coordinate origin of the tool coordinate system and the accelerator coordinate system; a strip height adjustment support arranged below the strip, the strip height adjustment support being used to adjust the strip height; an L-shaped tail support and a top screw arranged near the other end of the strip support, the L-shaped tail support and the top screw being used to position the length of the strip; the strip shimming tool is also provided with a tool coordinate system, and a strip theoretical curve and a processing curve have a conversion relationship; the present invention can restore the position of strips of different energies in the accelerator through the strip shimming tool, completely getting rid of the problem of having to carry sector-shaped magnetic poles weighing hundreds of kilograms as a processing standard every time the strips are processed in a processing plant.

Description

Technical Field

[0001] The invention belongs to the technical field of cyclotron accelerators, and in particular relates to a compact cyclotron strip shimming tool for different energies. Background Art

[0002] For isochronous cyclotron accelerators, the magnet system is crucial for achieving high-quality particle beams with a certain energy and beam intensity. In actual accelerator design and engineering, some errors inevitably exist between the finished magnets and the ideal calculation model. Therefore, the magnetic field of the initially machined main magnets often deviates from the ideal isochronous field. This can cause particles to slip excessively during acceleration, failing to reach the theoretically designed acceleration phase range. Consequently, they fall into the deceleration phase and are lost, making it impossible to achieve beam delivery and target impact—an unacceptable situation in practical engineering.

[0003] In order to avoid the above situation, a strip part will be designed in the theoretical design of the main magnet to introduce redundant magnetic field (the strip is a bar magnet embedded on both sides or one side of each sector pole of the main magnet) to meet the need to adjust the magnetic field after the actual processing is completed.

[0004] The difficulty in shimming design lies in the fact that compact accelerators of different energies require different shimming lengths, thicknesses, and angles. As the energy changes, the length, thickness, and angle of the shims also change. Therefore, as the energy changes, the shimming design must be tailored to the sector magnet shape that matches the current energy. For cyclotrons, the main magnet is quite large, making it impossible to move the entire assembly to a fabrication facility.

[0005] The traditional method involves removing a single magnet (up to 600 kg) from the main magnets and bringing it to the fabricator for inlay processing. This requires multiple transports of hundreds of kilograms of magnetic poles to ensure the required dimensions meet the requirements for the main poles. For accelerators with multiple energies, this requires multiple transports of these poles, weighing hundreds of kilograms. Summary of the Invention

[0006] In order to solve the problems existing in the prior art, the present invention proposes a compact cyclotron strip shimming tool for different energies. The purpose is to solve the problem that in the prior art, when processing strips for compact accelerators with multiple energies, heavy magnetic poles need to be carried out multiple times, which is time-consuming and labor-intensive.

[0007] The present invention adopts the following technical solutions to solve the technical problems:

[0008] A compact cyclotron shimming tool for different energies, such as Figure 1-6As shown, it includes: a slat support 1 fixed on the machine tool, which is used to cooperate with the machine tool; a head support 2 arranged near one end of the slat support 1, which is used to coincide with the coordinate origin of the tooling coordinate system and the accelerator coordinate system; a slat height adjustment support 3 arranged below the slat, which is used to adjust the slat height; an L-shaped tail support 5 and a top screw 6 arranged near the other end of the slat support 1, which are used to position the length of the slat;

[0009] The invention is characterized in that: the strip shimming tool is also provided with a tool coordinate system; the cylindrical center of the head support (2) coincides with the origin of the tool coordinate system, and the coordinate origin is on the surface containing the strip processing curve; the strip straight edge is used to assist in positioning the X1 axis of the tool coordinate system, that is, the X1 axis of the tool coordinate system passes through the origin of the tool coordinate system and is parallel to the strip straight edge, and the straight edge of the strip 4 is a straight edge on the surface containing the strip processing curve; the Y1 coordinate axis passes through the coordinate origin 0 and is perpendicular to the X1 coordinate axis, and the Y1 coordinate axis is located on the surface containing the strip processing curve; the surface containing the strip processing curve changes with the change of strips with different energies;

[0010] The X1 axis of the tooling coordinate system coincides with the X axis of the accelerator coordinate system, and the theoretical curve of the inlay strip and the processing curve have the following conversion relationship: based on the known point M(X, Y), the known angle θ, and the known angle θ1 on the theoretical curve, the straight edge of the inlay strip is rotated by an angle θ1 so that the straight edge of the inlay strip is parallel to the X axis in the accelerator coordinate system, and the corresponding unknown point M1(X1, Y1) on the processing curve can be obtained; the known angle θ1 is the angle between the position of the straight edge of the inlay strip in the accelerator coordinate system and the X axis of the accelerator coordinate system, and is also the angle that the straight edge of the inlay strip needs to rotate from the initial angle in the accelerator to the current angle parallel to the X axis; the known angle θ is the tangent angle of the known point M(X, Y).

[0011] Furthermore, the cross-section of the strip support 1 is an inverted T-shape, and the inverted T-shaped tooling is used to perform double strip shimming processing on both sides of the T-shaped long surface. The head support 2, the strip height adjustment support 3, the strip 4, the L-shaped tail support 5 and the top screw 6 are respectively provided on both sides of the T-shaped long surface.

[0012] Furthermore, the cross-section of the strip support 1 is an inverted T-shape, and the inverted T-shaped tooling is used to perform double strip shimming processing on both sides of the T-shaped long surface. The head support 2, the strip height adjustment support 3, the strip 4, the L-shaped tail support 5 and the top screw 6 are respectively provided on both sides of the T-shaped long surface.

[0013] Furthermore, the head support 2 is cylindrical and has the same size as the arc of the head of the insert, so as to ensure that the origin of the coordinate system when the insert is installed on the tooling is consistent with the origin of the coordinate system when the insert is installed on the cyclotron.

[0014] Furthermore, the first form of the cut body of the inlay strip 4 is an irregular triangular prism, which is formed by cutting a curved surface on two mutually perpendicular planes of the inlay strip; the upper edge of the curved surface is a straight line, which is arranged on the upper surface of the inlay strip and parallel to the X1 coordinate axis of the tooling coordinate system, and the lower edge of the curved surface is a curve, which is arranged on the outer surface of the inlay strip, and the outer surface and the upper surface are perpendicular to each other.

[0015] Furthermore, the coordinates of each point on the curve of the cutting surface on the Y-coordinate axis are the vertical distances of each point from the upper edge line of the outer surface of the trim strip, and the upper edge line is a virtual upper edge line.

[0016] Furthermore, the second form of the cutting body of the inlay strip 4 is composed of a rectangular plane and a concave-convex surface on one side of the rectangular plane. The concave-convex surface is arranged on the outer side of the inlay strip 4. The rectangular plane and the T-shaped long surface are in contact with each other, and the upper edge of the rectangular plane is parallel to the X1 coordinate axis of the tooling coordinate system.

[0017] Furthermore, the coordinates of each point on the concave-convex curved surface on one side of the rectangular plane on the Y-coordinate axis are the vertical distances of each point from the T-shaped long surface.

[0018] Furthermore, the conversion relationship between the theoretical curve of the inlay and the processing curve is: parallel the X1 axis of the tooling coordinate system to the X axis of the accelerator coordinate system; obtain the known point M (X, Y) in the accelerator coordinate system, and obtain the angle θ1 between the straight edge of the inlay and the X axis of the accelerator coordinate system; rotate the angle θ1 of the straight edge of the inlay so that the straight edge of the inlay is parallel to the X axis of the accelerator coordinate system or parallel to the X1 axis of the tooling coordinate system after being rotated by θ1; and obtain the coordinate value M1 (X1, Y1) in the tooling coordinate system.

[0019] Furthermore, the specific method for obtaining M1(X1, Y1) is as follows:

[0020] 1) Obtain a known point M(X, Y) in the accelerator coordinate system and obtain the angle θ1 between the straight edge of the slat and the X-axis of the accelerator coordinate system;

[0021] 2) θ = arctan(Y / X);

[0022] 3)

[0023]

[0024] in, is the hypotenuse of the known point M(X, Y); is the angle of the known point M(X, Y), θ1 is the angle of the straight edge of the inlay when it rotates from the current angle to the point parallel to the X axis of the accelerator coordinate system or the X1 axis of the tooling coordinate system. The current angle is the angle corresponding to the straight edge of the inlay when the known point is M(X, Y).

[0025] Advantages and effects of the present invention

[0026] 1. The present invention restores the angle of the processed slug in the accelerator coordinate system by transforming the X1 coordinate axis of the slug fixture and the X coordinate axis of the accelerator coordinate system. The slug's head support restores the center of the processed slug in the accelerator coordinate system. The slug's L-shaped tail support 5 and top screw 6 restore the length of the processed slug in the accelerator coordinate system. Thus, the slug shimming fixture can be used to restore the position of slugs of varying energies in the accelerator, completely eliminating the need to carry several hundred kilograms of sector-shaped magnetic poles as a processing standard each time a slug is processed at a processing plant.

[0027] 2. The present invention adopts a tool with an inverted T-shaped cross section, which can process two inlay strips at a time, thus saving twice the inlay strip processing time. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the placement of the compact accelerator strips for this application;

[0029] Figure 2 The conversion principle diagram of the theoretical curve and processing curve of the inlay strip for this application;

[0030] Figure 3 This is the first perspective of the panel A of this application being placed in the panel shimming tooling;

[0031] Figure 4 This is a schematic diagram of the virtual edge line of the outer side of the panel A in this application;

[0032] Figure 5 This is a second perspective of the panel A of this application being placed in the panel shimming tooling;

[0033] Figure 6 This is a schematic diagram of the placement of the inlay strip B in the inlay strip shimming tooling of this application;

[0034] In the figure: 1: Inlay support; 2: Head support; 3: Inlay height adjustment support; 4: Inlay; 5: L-shaped tail support; 6: Top screw; DETAILED DESCRIPTION

[0035] The present invention will be further explained below with reference to the accompanying drawings:

[0036] Design difficulties and design principles of the present invention

[0037] 1) Design Difficulties of the Present Invention

[0038] One of the difficulties is that, in order to simplify the design and use of the tooling, the straight edge of the inlay must be kept parallel to or coincident with the X1 axis of the tooling coordinate system. If they do not coincide, the head support of the tooling must be moved so that the angle between the head support and the straight edge of the inlay is equal to the angle of the inlay in the accelerator coordinate system. Although this is feasible, it is time-consuming and labor-intensive. The reason why the head support of the tooling must be moved is that in reality, there is an angle between the straight edge of the inlay and the X axis, such as Figure 1 As shown, assuming the angle between the first of the four strips and the X-axis of the accelerator coordinate system is 30 degrees, the angles between the second, third, and fourth strips and the X-axis are 120, 210, and 300 degrees, respectively. It is feasible to move the head support so that the angle between the head support and the straight edge of the strip passing through its center simulates the angle of the strip in the accelerator. However, this is time-consuming and labor-intensive. However, if the angle is eliminated, the straight edge of the strip remains parallel to the X / X1 coordinate while also restoring the processed strip to its original position in the accelerator coordinate system. This presents the first challenge. The position of the points on the restoration curve in the accelerator coordinate system is the position of the strip containing point M1 in the accelerator coordinate system, where the horizontal coordinate of point M1 (X1, Y1) becomes the horizontal coordinate of point M (X, Y). The vertical coordinate of point M (X, Y) remains constant and remains in a relative position.

[0039] The second difficulty lies in the fact that the straight edge of the strip and the curve on the strip are two different things. Although the straight edge of the strip is kept parallel to the X / X1 coordinate (the straight edge of the strip is also parallel to the X1 axis), the parallelism only applies to the X-axis and the X1 axis, and does not mean that the coordinate points of their horizontal coordinates are the same, that is, it does not mean that the horizontal coordinates of M1 (X1, Y1) and M (X, Y) are the same on the X1 axis or on the X axis.

[0040] The third difficulty lies in the fact that points on the slatted curve have coordinates on the Y1 axis in addition to the X1 axis. However, the Y1 axis cannot be defined using conventional methods. Conventional methods define the Y1 axis as being on a horizontal plane. However, the Y1 axis in this application is defined as being on the plane containing the slatted curve, not necessarily on a horizontal plane. This is because, for slatted curves of different energies, the plane containing the slatted curve may be horizontal or vertical.

[0041] 2) Design principle of the present invention

[0042] First, make the X1 axis of the tooling coordinate system coincide with the X axis of the accelerator coordinate system;

[0043] Second, the relationship between the tooling coordinate system and the straight edge of the inlay is established. Specifically, the X1 axis of the tooling coordinate system is parallel to the straight edge of the inlay. This is because the only way to establish the conversion relationship between the theoretical inlay curve and the processing curve is to rotate the straight edge of the inlay, not the tooling coordinate system. Rotating the tooling coordinate system cannot establish the relationship between the two. Only rotating the straight edge of the inlay can do this. This is the technical feature of the present invention that distinguishes it from conventional coordinate transformations.

[0044] Third, establish the relationship between the known point M (X, Y) in the accelerator coordinate system and the unknown point M1 (X1, Y1) in the tooling coordinate system. To establish this relationship, an intermediate medium must be found. This intermediate medium is the rotation angle θ1 of the straight edge of the inlay in the accelerator coordinate system.

[0045] Fourth, find the relationship between the angle θ1 of the strip rotation and the angle from point M(X, Y) along the arc to point M1(X1, Y1). You can see that these two angles are equal because they are the angles between parallel lines.

[0046] Fifth, the angles θ and θ1 are known, and the hypotenuse from point M (X, Y) to the accelerator coordinate system is known. Therefore, the X1 coordinate can be obtained by the cosine function, and the Y1 coordinate can be obtained by the sine function.

[0047] Based on the above design principles, the present invention designs a compact cyclotron shimming tool for different energies.

[0048] A compact cyclotron shimming tool for different energies, such as Figure 1-6 As shown, it includes: a slat support 1 fixed on the machine tool, which is used to cooperate with the machine tool; a head support 2 arranged near one end of the slat support 1, which is used to coincide with the coordinate origin of the tooling coordinate system and the accelerator coordinate system; a slat height adjustment support 3 arranged below the slat, which is used to adjust the slat height; an L-shaped tail support 5 and a top screw 6 arranged near the other end of the slat support 1, which are used to position the length of the slat;

[0049] Its characteristics are as follows: the strip shimming tool is also provided with a tool coordinate system; the cylindrical center of the head support 2 coincides with the origin of the tool coordinate system, and the coordinate origin is on the surface containing the strip processing curve; the strip straight edge is used to assist in positioning the X1 axis of the tool coordinate system, that is, the X1 axis of the tool coordinate system passes through the origin of the tool coordinate system and is parallel to the strip straight edge, and the straight edge of the strip 4 is a straight edge on the surface containing the strip processing curve; the Y1 coordinate axis passes through the coordinate origin 0 and is perpendicular to the X1 coordinate axis and is located on the surface containing the strip processing curve; the surface containing the strip processing curve changes with the changes in the strips of different energies;

[0050] The X1 axis of the tooling coordinate system coincides with the X axis of the accelerator coordinate system, and the theoretical curve of the inlay strip and the processing curve have the following conversion relationship: based on the known point M(X, Y), the known angle θ, and the known angle θ1 on the theoretical curve, the straight edge of the inlay strip is rotated by an angle θ1 so that the straight edge of the inlay strip is parallel to the X axis in the accelerator coordinate system, and the corresponding unknown point M1(X1, Y1) on the processing curve can be obtained; the known angle θ1 is the angle between the position of the straight edge of the inlay strip in the accelerator coordinate system and the X axis of the accelerator coordinate system, and is also the angle that the straight edge of the inlay strip needs to rotate from the initial angle in the accelerator to the current angle parallel to the X axis; the known angle θ is the tangent angle of the known point M(X, Y).

[0051] Supplementary Note 1

[0052] The significance of the strip shimming tooling is that it can restore the position of the processed strips in the accelerator coordinate system without having to transport the sector magnetic poles to the processing plant each time. The head support of the strip shimming tooling of the present application is used to restore the origin position of strips of different energies in the accelerator coordinate system of different energies; the conversion relationship between the strip theoretical curve and the processing curve of the strip shimming tooling X1 coordinate axis and the accelerator coordinate system X axis of the present application restores the position of strips of different energies in the accelerator coordinate system of different energies; the L-shaped tail support 5 and top screw 6 of the strip shimming tooling of the present application restore the length of strips of different energies in the accelerator coordinate system of different energies.

[0053] Supplementary Note 2

[0054] ① Finding the "straight edge of the inlay" is crucial, because the "straight edge of the inlay" is used to assist in locating the X1 axis of the tooling coordinate system: the "straight edge of the inlay" is a physical entity, and the X1 axis of the tooling coordinate is virtual. In actual processing, it is necessary to find a straight edge of the inlay parallel to the X1 axis to facilitate the positioning of the X1 coordinate of M1 (X1, Y1). How to find the "straight edge of the inlay"? There are two conditions: first, find a curve, which is a curved or uneven curve; second, find a surface containing a curve. Figure 3 For example, the surface containing the strip curve is on the outer side of the strip; Figure 6 For example, the surface containing the inlay curve is on the upper or lower surface of the inlay; third, find the straight line on the surface, which must be parallel to the X1 axis of the tooling coordinate system. Figure 3 、 Figure 6 For example, the straight edges of the strips all have the characteristic of being parallel to the X1 axis;

[0055] ② In this embodiment, the strip in the first quadrant of the accelerator coordinate system is taken as an example. Figure 1As shown, in actual field applications, the inlay strips are also arranged in the 2nd, 3rd and 4th quadrants. Since the inlay strip shimming amount in each quadrant is the same, the inlay strip shimming amount in the 2nd, 3rd and 4th quadrants can be based on the inlay strip shimming amount in the 1st quadrant.

[0056] ③ The definition of the Y1 coordinate axis of the tooling coordinate system is: the Y1 coordinate axis is located on the surface containing the inlay curve. This is a very critical feature. This is different from the definition of the Y1 coordinate axis in the ordinary sense. The Y1 coordinate axis in the ordinary sense is always on the horizontal plane parallel to the X1 axis, while the Y1 coordinate axis of this application is sometimes on the horizontal plane, such as Figure 6 The Y1 coordinate axis is shown in the horizontal plane; sometimes it is in the vertical plane, such as Figure 6 The Y1 axis is shown to be in the vertical plane because the surface containing the slat curve is horizontal for the slats of one energy and vertical for the slats of the other energy.

[0057] ④ Figure 2 The meanings of angles θ and θ1 are different. Angle θ1 is the rotation angle of the "straight side of the inlay strip". When the "straight side of the inlay strip" is rotated clockwise to 0 degrees, that is, when it is rotated by angle θ1, the straight side of the inlay strip is parallel to the X / X1 coordinate axis.

[0058] ⑤θ is the tangent angle of the known point, which is obtained from the known point M(X,Y) on the strip curve. Figure 2 It can be seen that when the straight edge of the inlay is rotated by an angle of θ1 to be parallel to the X / X1 axis, the horizontal coordinates of M(X,Y) and M1(X1,Y1) are different, and the horizontal coordinate of M1(X1,Y1) is relatively further outward. Therefore, it is necessary to obtain the coordinates of M1(X1,Y1) through the conversion relationship between the inlay theoretical curve and the processing curve;

[0059] ⑥The conversion relationship is as follows Figure 2 As shown, there are three steps: first, the angle θ-θ1 is obtained; second, the horizontal coordinate X1 of M1 (X1, Y1) is obtained using the cosine function of this angle; third, the vertical coordinate Y1 of M1 (X1, Y1) is obtained using the sine function of this angle.

[0060] Furthermore, the cross-section of the strip support 1 is an inverted T-shape, and the inverted T-shaped tooling is used to perform double strip shimming processing on both sides of the T-shaped long surface. The head support 2, the strip height adjustment support 3, the strip 4, the L-shaped tail support 5 and the top screw 6 are respectively provided on both sides of the T-shaped long surface.

[0061] Supplementary Note 3

[0062] The advantage of the tooling with an "inverted T-shaped" cross-section of the present invention is that two inlays can be processed simultaneously on both sides of the long T-shaped surface. If the inlay is a single-sided magnetic pole, a total of 8 inlays need to be processed in the upper and lower layers. If two inlays are processed each time, half the time can be saved.

[0063] Furthermore, the head support 2 is cylindrical and has the same size as the arc of the head of the insert, so as to ensure that the origin of the coordinate system when the insert is installed on the tooling is consistent with the origin of the coordinate system when the insert is installed on the cyclotron.

[0064] Supplementary Note 4

[0065] The condition for converting the theoretical curve of the inlay strip and the processing curve is firstly the positioning of the center of the tooling coordinate system. This application adopts a cylindrical shape with the same size as the arc of the inlay strip head to achieve this effect.

[0066] Furthermore, the first form of the cut body of the inlay strip 4 is an irregular triangular prism, which is formed by cutting a curved surface on two mutually perpendicular planes of the inlay strip; the upper edge of the curved surface is a straight line, which is arranged on the upper surface of the inlay strip and parallel to the X1 coordinate axis of the tooling coordinate system, and the lower edge of the curved surface is a curve, which is arranged on the outer surface of the inlay strip, and the outer surface and the upper surface are perpendicular to each other.

[0067] Supplementary Note 5

[0068] Here is the first method of processing the inlay. Figure 3 The strip shown is a curved strip designed for desktop accelerators with very limited space. Its characteristic is that the concave and convex surfaces of the strip do not occupy the sides of the strip, but are arranged diagonally above the strip. The straight edge of this strip also requires three steps: first, find the curve, second, find the surface containing the curve, and then Figure 3 It can be seen that the surface containing the curve is on the outer surface of the inlay; third, find the straight line on this surface. This straight line must be horizontal, that is, it must be parallel to the X1 axis.

[0069] Furthermore, the coordinates of each point on the curve of the cutting surface on the Y-coordinate axis are the vertical distances of each point from the upper edge line of the outer surface of the trim strip, and the upper edge line is a virtual upper edge line.

[0070] Supplementary Note 6

[0071] like Figure 4 As shown, the virtual upper edge is obtained by translating the straight edge of the inlay upward, so the virtual upper edge is also parallel to the X1 axis. The coordinates of each point on the curve of the cutting surface on the Y coordinate axis can be obtained through the virtual upper edge.

[0072] Furthermore, the second form of the cutting body of the inlay strip 4 is composed of a rectangular plane and a concave-convex surface on one side of the rectangular plane. The concave-convex surface is arranged on the outer side of the inlay strip 4. The rectangular plane and the T-shaped long surface are in contact with each other, and the upper edge of the rectangular plane is parallel to the X1 coordinate axis of the tooling coordinate system.

[0073] Supplementary Note 7

[0074] Here is the second method of processing the inlay. Figure 6 The strip shown is a conventional strip. Its characteristic is that the concave and convex surfaces of the strip occupy both sides of the strip, that is, the valley space on both sides of the strip. This strip is suitable for large compact accelerators. The straight edge of this strip is also obtained in three steps: First, find the curve, from Figure 6 It can be seen that the shape of the curve is convex at both ends and concave in the middle. Second, find the surface containing the curve, from Figure 6 It can be seen that the surface containing the curve is on the upper and lower surfaces of the inlay. During processing, cut along the curve from the upper surface to the lower surface; thirdly, find the straight line on this surface. This straight line must be a horizontal straight line, that is, it must be parallel to the X1 axis. Figure 6 In the figure, the straight line is close to the long side of the T-shape.

[0075] Furthermore, the coordinates of each point on the concave-convex curved surface on one side of the rectangular plane on the Y-coordinate axis are the vertical distances of each point from the T-shaped long surface.

[0076] Supplementary Note 8

[0077] The virtual plane method cannot be used here to obtain the Y1 coordinate because the virtual plane is cut off. Therefore, to obtain the Y1 coordinate of each point on the concave and convex surface, another surface parallel to the virtual plane, that is, the long T-shaped surface, should be found.

[0078] Furthermore, the conversion relationship between the theoretical curve of the inlay and the processing curve is: parallel the X1 axis of the tooling coordinate system to the X axis of the accelerator coordinate system; obtain the known point M (X, Y) in the accelerator coordinate system, and obtain the angle θ1 between the straight edge of the inlay and the X axis of the accelerator coordinate system; rotate the angle θ1 of the straight edge of the inlay so that the straight edge of the inlay is parallel to the X axis of the accelerator coordinate system or parallel to the X1 axis of the tooling coordinate system after being rotated by θ1; and obtain the coordinate value M1 (X1, Y1) in the tooling coordinate system.

[0079] Furthermore, the specific method for obtaining M1(X1, Y1) is as follows:

[0080] 1) Obtain a known point M(X, Y) in the accelerator coordinate system and obtain the angle θ1 between the straight edge of the slat and the X-axis of the accelerator coordinate system;

[0081] 2) θ = arctan(Y / X);

[0082] 3)

[0083]

[0084] in, is the hypotenuse of the known point M(X, Y); is the angle of the known point M(X, Y), θ1 is the angle of the straight edge of the inlay when it rotates from the current angle to the point parallel to the X axis of the accelerator coordinate system or the X1 axis of the tooling coordinate system. The current angle is the angle corresponding to the straight edge of the inlay when the known point is M(X, Y).

[0085] It should be emphasized that the above specific embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the above embodiments as needed, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A compact cyclotron shimming tool for different energies, comprising: A strip support (1) fixed on a machine tool, the strip support (1) being used to cooperate with the machine tool; A head support (2) is arranged near one end of the strip support (1), and the head support (2) is used to coincide with the coordinate origin of the tooling coordinate system and the accelerator coordinate system; a strip height adjustment support (3) is arranged below the strip (4), and the strip height adjustment support (3) is used to adjust the strip height; an L-shaped tail support (5) and a top screw (6) are arranged near the other end of the strip support (1), and the L-shaped tail support (5) and the top screw (6) are used to position the length of the strip; The invention is characterized in that: the strip shimming tool is also provided with a tool coordinate system; the cylindrical center of the head support (2) coincides with the origin of the tool coordinate system, and the coordinate origin is on the surface containing the strip processing curve; the strip straight edge is used to assist in positioning the X1 axis of the tool coordinate system, that is, the X1 axis of the tool coordinate system passes through the origin of the tool coordinate system and is parallel to the strip straight edge, and the straight edge of the strip (4) is a straight edge on the surface containing the strip processing curve; the Y1 coordinate axis passes through the coordinate origin 0 and is perpendicular to the X1 coordinate axis and the Y1 coordinate axis is located on the surface containing the strip processing curve; the surface containing the strip processing curve changes with the change of strips with different energies; The X1 axis of the tooling coordinate system coincides with the X axis of the accelerator coordinate system, and the theoretical curve of the inlay strip and the processing curve have the following conversion relationship: based on the known point M(X, Y), the known angle θ, and the known angle θ1 on the theoretical curve, the straight edge of the inlay strip is rotated by an angle θ1 so that the straight edge of the inlay strip is parallel to the X axis in the accelerator coordinate system, and the corresponding unknown point M1(X1, Y1) on the processing curve can be obtained; the known angle θ1 is the angle between the position of the straight edge of the inlay strip in the accelerator coordinate system and the X axis of the accelerator coordinate system, and is also the angle that the straight edge of the inlay strip needs to rotate from the initial angle in the accelerator to the current angle parallel to the X axis; the known angle θ is the tangent angle of the known point M(X, Y); The conversion relationship between the theoretical curve of the inlay and the processing curve is as follows: the X1 axis of the tooling coordinate system is parallel to the X axis of the accelerator coordinate system; a known point M(X, Y) in the accelerator coordinate system is obtained, and the angle θ1 between the straight edge of the inlay and the X axis of the accelerator coordinate system is obtained; the angle θ1 of the straight edge of the inlay is rotated so that the straight edge of the inlay is parallel to the X axis of the accelerator coordinate system or the X1 axis of the tooling coordinate system after being rotated by θ1; and the coordinate value M1(X1, Y1) in the tooling coordinate system is obtained; The specific method for obtaining M1(X1, Y1) is as follows: 1) Obtain a known point M(X, Y) in the accelerator coordinate system and obtain the angle θ1 between the straight edge of the slat and the X-axis of the accelerator coordinate system; 2) θ = arctan(Y / X); 3) in, is the hypotenuse of the known point M(X, Y); is the angle of the known point M(X, Y), θ1 is the angle of the straight edge of the inlay when it rotates from the current angle to the point parallel to the X axis of the accelerator coordinate system or the X1 axis of the tooling coordinate system. The current angle is the angle corresponding to the straight edge of the inlay when the known point is M(X, Y).

2. The compact cyclotron shimming tool for different energies according to claim 1, characterized in that: The cross section of the strip support (1) is an inverted T-shape. The inverted T-shaped tool is used for performing double strip shimming processing on both sides of the T-shaped long surface. The two sides of the T-shaped long surface are respectively provided with the head support (2), the strip height adjustment support (3), the strip (4), the L-shaped tail support (5) and the top screw (6).

3. The compact cyclotron shimming tool for different energies according to claim 1, characterized in that: The head support (2) is cylindrical and has the same size as the arc of the head of the insert, so as to ensure that the origin of the coordinate system when the insert is installed on the tooling is consistent with the origin of the coordinate system when the insert is installed on the cyclotron.

4. The compact cyclotron shimming tool for different energies according to claim 1, characterized in that: The first form of the cutting body of the inlay strip (4) is an irregular triangular prism, which is formed by cutting a curved surface on two mutually perpendicular planes of the inlay strip; the upper edge line of the curved surface is a straight line, which is arranged on the upper surface of the inlay strip and parallel to the X1 coordinate axis of the tooling coordinate system; the lower edge line of the curved surface is a curve, which is arranged on the outer side of the inlay strip, and the outer side surface and the upper surface are perpendicular to each other.

5. The compact cyclotron shimming tool for different energies according to claim 4, characterized in that: The coordinates of each point on the curve of the cutting surface on the Y coordinate axis are the vertical distances of each point from the upper edge line of the outer surface of the inlay strip, and the upper edge line is a virtual upper edge line.

6. The compact cyclotron shimming tool for different energies according to claim 2, characterized in that: The second form of the cutting body of the inlay strip (4) is composed of a rectangular plane and a concave-convex curved surface on one side of the rectangular plane, the concave-convex curved surface is arranged on the outer side of the inlay strip (4), the rectangular plane and the T-shaped long surface are in contact, and the upper edge line of the rectangular plane is parallel to the X1 coordinate axis of the tooling coordinate system.

7. The compact cyclotron shimming tool for different energies according to claim 6, characterized in that: The coordinates of each point on the concave-convex curved surface on one side of the rectangular plane on the Y coordinate axis are the vertical distances of each point from the T-shaped long surface.

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