Device for measuring magnetic field of vertical cyclotron

Abstract

The utility model discloses a device for measuring a magnetic field of a vertical cyclotron, which relates to the technical field of magnetic field measurement and comprises a working table, two double-bearing upright posts erected at the top end of the working table are mounted at the top end of the working table, and a Z-axis movement sliding table is mounted on the surface of the double-bearing upright post on each side. The surfaces of the two Z-axis movement sliding tables are slidably connected with second sliding blocks correspondingly, X-axis movement sliding tables are fixedly arranged on the surfaces of the second sliding blocks, the X-axis movement sliding tables and the Z-axis movement sliding tables are perpendicularly arranged, and the X-axis movement sliding tables vertically slide on the surfaces of the Z-axis movement sliding tables in a reciprocating mode; the surface of the Z-axis movement sliding table is slidably connected with a first sliding block, and the surface of the first sliding block is fixedly provided with a measuring arm. According to the magnetic measurement device, the measurement arm can move along the x axis and the Z axis through the two-axis movement sliding table, and the Hall probe mounting base is arranged at the top end of the measurement arm and used for mounting the Hall probe.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of magnetic field measurement, specifically a device for vertical cyclotron magnetic field measurement. BACKGROUND

[0002] Cyclotron is used to lead out stable beam, and the beam movement needs the constraint of isochronous magnetic field. In order to provide isochronous magnetic field, the accelerator needs to be measured. According to the measured data, the magnetic field is supplemented, so that the magnetic field meets the requirements of beam dynamics. At present, the positioning mode of cyclotron magnetic field measurement generally adopts circumferential motion angle positioning, and the magnetic field measurement is carried out circle by circle, which needs to use angle encoder. However, the angle encoder is very sensitive to external vibration, which leads to long positioning time and low precision. If the number of rotation circles is large, a lot of time will be wasted in high-precision positioning, which will greatly increase the overall measurement time. Moreover, long-time measurement will affect the magnetic field due to the change of environment (temperature, humidity, vibration, noise, air flow, etc.), which will reduce the accuracy of the measured data. In addition, due to the complex distribution of magnetic field and large gradient change, high-precision control of position is very important. If the precision is not high, even one ten-thousandth, it will also lead to that the magnetic field does not meet the requirements of beam dynamics, and finally the beam cannot be adjusted out.

[0003] The mechanical structure of the existing magnetic field measurement device has the following problems: ① Since it is installed in the interior of the cyclotron, it must be customized according to the size of the cyclotron; ② In order to ensure the precision of magnetic field position measurement, an encoder is also needed for position feedback; ③ The magnetic field measuring instrument of this structure needs a lot of leveling work every time it is installed in the interior of the cyclotron to ensure that the magnetometer moves on the center plane. ④ The disadvantages of this customized mechanical structure of the magnetometer are: for the cyclotron with a certain radius size, different mechanical support trays need to be customized, and the mechanical structure is complex, the magnetometer mechanical mechanism needs to be installed and leveled, and the flatness of the center plane is realized by adjusting the mechanical support disc, which requires high mechanical leveling precision and is difficult to level, and the mechanical installation process is complex. UTILITY MODEL CONTENTS

[0004] Therefore, the device for vertical cyclotron magnetic field measurement is provided to solve the problems of the mechanical structure of the existing magnetic field measurement device, that is, ① the device must be customized according to the size of the cyclotron because it is installed in the interior of the cyclotron; ② an encoder needs to be configured to perform position feedback to ensure the accuracy of the magnetic field position measurement; ③ the magnetic field measurement device of this structure needs to be leveled a lot every time it is installed in the interior of the cyclotron to ensure that the magnetometer moves on the center plane; and ④ the magnetic field measurement device with the customized mechanical structure has the following shortcomings: different mechanical support trays need to be customized for cyclotrons with different radius sizes, the mechanical structure is complex, the magnetometer mechanical mechanism needs to be installed and leveled, the flatness of the center plane is realized by adjusting the mechanical support disc, the mechanical leveling accuracy is required to be high, the leveling is difficult, and the mechanical installation process is complex.

[0005] To achieve the above object, the following technical solutions are adopted in the utility model:

[0006] The device for vertical cyclotron magnetic field measurement comprises a workbench, two double-bearing columns vertically arranged on the top end of the workbench, a Z-axis motion sliding table arranged on the surface of each double-bearing column, a sliding block two connected to the surface of each Z-axis motion sliding table, an X-axis motion sliding table fixed to the surface of each sliding block two, the X-axis motion sliding table being arranged vertically to the Z-axis motion sliding table, the X-axis motion sliding table sliding up and down on the surface of the Z-axis motion sliding table, a sliding block one connected to the surface of the Z-axis motion sliding table, a measurement arm fixed to the surface of the sliding block one, and a Hall probe mounting base arranged on the top end of the measurement arm.

[0007] As a preferred technical solution of the utility model, a cross beam is arranged on the top end of each double-bearing column, a middle-bearing column is fixedly arranged at the middle position of the cross beam, an electric cylinder is fixedly arranged on the top end of the middle-bearing column, a ball screw two is connected to the electric cylinder, the ball screw two is rotatably arranged on the top end of the workbench, a threaded sleeve is fixedly arranged at the middle part of the surface of the X-axis motion sliding table, and the threaded sleeve is threadedly connected to the ball screw two.

[0008] As a preferred technical solution of the utility model, a ball screw one is rotatably arranged on the surface of the X-axis motion sliding table, a speed reducer is fixedly arranged at one end of the X-axis motion sliding table, an output shaft is outwardly arranged on the speed reducer, the output shaft of the speed reducer is connected to one end of the ball screw one, a threaded hole is arranged on the surface of the sliding block one, and the sliding block one is threadedly connected to the ball screw one.

[0009] As a preferred technical scheme of the utility model, the bottom of the workbench is provided with walking rollers, a plurality of walking rollers are arranged on the bottom of the workbench along the edge of the workbench.

[0010] As a preferred technical scheme of the utility model, the bottom of the workbench is provided with supporting legs, and the supporting legs are detachable on the bottom of the workbench.

[0011] As a preferred technical scheme of the utility model, the top end of the workbench is fixedly provided with a fixed base, and the top end of the workbench is fixedly provided with a fixed sleeve, and the fixed base is fixedly installed on the top end of the workbench through the fixed sleeve.

[0012] As a preferred technical scheme of the utility model, the bottom end of the double-bearing column vertically arranged on the top end of the workbench is fixedly installed on the surface of the fixed base, and a side supporting frame is arranged between the surface of the fixed base and the top end of the double-bearing column for supporting and fixing.

[0013] As a preferred technical scheme of the utility model, the surface of the double-bearing column on one side is provided with a fixed hook.

[0014] The magnetic measurement device of the utility model can realize the movement of the measurement arm along the X-axis and Z-axis through the two-axis movement sliding table, the top end of the measurement arm is provided with a Hall probe mounting base, and the Hall probe mounting base is used for mounting the Hall probe.

[0015] The two-axis movement sliding table is used for driving the measurement arm to move, and the measurement arm is used for mounting the Hall probe. The two-axis movement sliding table comprises a driving mechanism and an execution mechanism, the driving mechanism drives the execution mechanism, the workbench surface of the driving mechanism is connected to the vertical execution mechanism, the vertical execution mechanism is connected to the horizontal execution mechanism, the driving mechanism is an alternating current servo motor, the vertical execution mechanism is a ball screw and a threaded sleeve, and the horizontal execution mechanism is a linear transmission unit.

[0016] The vertical driving mechanism is an alternating current servo motor connected to the ball screw and the threaded sleeve through the ball screw, the ball screw and the threaded sleeve are in a ball screw transmission mode, and the bottom end of the ball screw is hinged to the workbench surface.

[0017] The X-axis movement sliding table is slidably connected to the surface of the Z-axis movement sliding table through the sliding block two to form the vertical execution mechanism, the X-axis movement sliding table is fixed to the top surface of the workbench, and the X-axis movement sliding table reciprocates in the vertical direction under the guidance of the sliding connection of the sliding block two and the surface of the Z-axis movement sliding table.

[0018] The ball screw of the horizontal driving mechanism is connected to the speed reducer, the sliding block one is threadedly connected to the ball screw, and the driving of the speed reducer is matched to realize the reciprocating movement of the measurement arm in the horizontal direction.

[0019] The other advantages, objects and features of the present application will be apparent from the following detailed description of the embodiments of the present application, and will be learned from practice of the present application, based on the study of the following conceptions. The objects and other advantages of the present application can be achieved and obtained by the following description. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 Appearance structure diagram of the device for vertical cyclotron magnetic field measurement Figure 1 ;

[0021] Figure 2 Appearance structure diagram of the device for vertical cyclotron magnetic field measurement Figure 2 ;

[0022] Figure 3 Appearance structure diagram of the device for vertical cyclotron magnetic field measurement Figure 3 ;

[0023] In the figure: workbench 1, walking roller 2, support leg 3, fixed clamping sleeve 4, fixed base 5, fixed hook 6, side support frame 7, speed reducer 8, X-axis movement sliding table 9, ball screw one 10, sliding block one 11, ball screw two 12, cross beam 13, Z-axis movement sliding table 14 electric cylinder 15, Hall probe mounting base 16, measuring arm 17, middle bearing column 18, threaded sleeve 19, double bearing column 20, sliding block two 21. DETAILED DESCRIPTION

[0024] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0026] It should be noted that: similar numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0027] In the above description of the utility model, it needs to be explained that the terms "one side", "the other side" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the utility model product is used, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0028] In addition, the term "same" and the like do not mean that the components must be absolutely the same, but there can be slight differences. The term "vertical" only means that the positional relationship between the components is more vertical than "parallel", and does not mean that the structure must be completely vertical, but can be slightly inclined. Embodiment

[0029] Please refer to Figures 1-3 A technical scheme provided by the utility model: a device for measuring the magnetic field of a vertical cyclotron, comprising a workbench 1, two double-bearing columns 20 vertically installed on the top of the workbench 1, a Z-axis motion sliding table 14 installed on the surface of each double-bearing column 20, a sliding block two 21 slidingly connected to the surface of each Z-axis motion sliding table 14, an X-axis motion sliding table 9 fixedly arranged on the surface of the two sliding blocks two 21, the X-axis motion sliding table 9 being arranged vertically compared to the Z-axis motion sliding table 14 and reciprocally sliding up and down on the surface of the Z-axis motion sliding table 14, a sliding block one 11 slidingly connected to the surface of the Z-axis motion sliding table 14, a measurement arm 17 fixedly arranged on the surface of the sliding block one 11, and a Hall probe mounting base 16 arranged on the top of the measurement arm 17.

[0030] The magnetometer of the utility model has higher precision. The relative adjustment is faster, which improves production efficiency.

[0031] The top of the two double-bearing columns 20 is provided with a cross beam 13, the middle position of the cross beam 13 is fixedly provided with a middle-bearing column 18, the top of the middle-bearing column 18 is fixedly provided with an electric cylinder 15, the electric cylinder 15 is downwardly connected with a ball screw two 12, the ball screw two 12 is rotationally connected to the top of the workbench 1, the middle part of the surface of the X-axis motion sliding table 9 is fixedly provided with a threaded sleeve 19, the threaded sleeve 19 is threadedly connected with the ball screw two 12, and the X-axis motion sliding table 9 is conveniently controlled to vertically reciprocally ascend and descend on the surface of the Z-axis motion sliding table 14.

[0032] The X-axis movement sliding table 9 is provided with a ball screw one 10 on the surface, one end of the X-axis movement sliding table 9 is fixedly provided with a speed reducer 8, the speed reducer 8 outwardly extends an output shaft, the output shaft of the speed reducer 8 is connected with one end of the ball screw one 10, the surface of a sliding block one 11 is provided with a threaded hole, and the sliding block one 11 is in threaded connection with the ball screw one 10. It is convenient to control the horizontal reciprocating sliding of the measurement arm 17 on the surface of the X-axis movement sliding table 9.

[0033] The bottom of the workbench 1 is provided with walking rollers 2, a plurality of walking rollers 2 are arranged on the bottom of the workbench 1 along the edges of the workbench 1, and the workbench 1 is convenient to move.

[0034] The bottom of the workbench 1 is provided with supporting legs 3, the supporting legs 3 are detachable on the bottom of the workbench 1, the supporting legs 3 are detachable when the workbench 1 needs to be moved, the supporting legs 3 are installed on the bottom of the workbench 1 when the workbench 1 does not need to be moved, and the installation position of the workbench 1 is fixed through the supporting legs 3.

[0035] The top end of the workbench 1 is fixedly provided with a fixed base 5, and the top end of the workbench 1 is fixedly provided with a fixed sleeve 4; the fixed base 5 is fixedly installed on the top end of the workbench 1 through the fixed sleeve 4, the fixed base 5 is convenient to install and detach, and the installation firmness of the fixed base 5 is improved.

[0036] The bottom end of the double-bearing column 20 vertically arranged on the top end of the workbench 1 is fixedly installed on the surface of the fixed base 5, and a side support frame 7 is arranged between the surface of the fixed base 5 and the top end of the double-bearing column 20 to support and fix, so that the structural firmness of the double-bearing column 20 is improved.

[0037] The surface of one of the double-bearing columns 20 is provided with a fixed hook 6, and the fixed hook 6 is convenient to hang or place other articles. Embodiment

[0038] Please refer to Figures 1-3 Another technical scheme provided by the utility model, the embodiment and the above-mentioned embodiment 1 have the same parts, the same parts are not described in the embodiment, and the specific different parts are as follows:

[0039] The utility model provides a device for vertical cyclotron magnetic field measurement, including work table 1, the top of work table 1 is equipped with two straight up in the top of work table 1 double bearing column 20, the surface of double bearing column 20 of each side is installed with Z axis motion sliding table 14, the surface of two Z axis motion sliding table 14 is slidably connected with slider two 21, the surface of two slider two 21 is fixed with X axis motion sliding table 9, and X axis motion sliding table 9 is compared with Z axis motion sliding table 14 vertically arranged, and X axis motion sliding table 9 reciprocatingly slides on the surface of Z axis motion sliding table 14, the surface of Z axis motion sliding table 14 is slidably connected with slider one 11, and the surface of slider one 11 is fixed with measuring arm 17, and the top of measuring arm 17 is provided with hall probe mounting base 16.

[0040] The utility model discloses a device for vertical cyclotron magnetic field measurement, including work table 1, the top of work table 1 is equipped with two straight up in the top of work table 1 double bearing column 20, the surface of double bearing column 20 of each side is installed with Z axis motion sliding table 14, the surface of two Z axis motion sliding table 14 is slidably connected with slider two 21, the surface of two slider two 21 is fixed with X axis motion sliding table 9, and X axis motion sliding table 9 is compared with Z axis motion sliding table 14 vertically arranged, and X axis motion sliding table 9 reciprocatingly slides on the surface of Z axis motion sliding table 14, the surface of Z axis motion sliding table 14 is slidably connected with slider one 11, and the surface of slider one 11 is fixed with measuring arm 17, and the top of measuring arm 17 is provided with hall probe mounting base 16.

[0041] Two axis motion sliding table is used to drive the measuring arm to move, and the measuring arm is used to install the hall probe.

[0042] The vertical driving mechanism is an AC servo motor connected with a threaded sleeve through a ball screw, the ball screw and the threaded sleeve are in a ball screw transmission mode, and the bottom end of the ball screw is hinged to the workbench surface.

[0043] The X-axis motion sliding table is slidably connected with the Z-axis motion sliding table surface through the slider two to form a vertical actuating mechanism, the X-axis motion sliding table is fixed to the top surface of the workbench, and the X-axis motion sliding table reciprocates in the vertical direction under the guidance of the sliding connection of the slider two and the Z-axis motion sliding table surface.

[0044] The ball screw of the horizontal driving mechanism is connected with a speed reducer, the slider one is threadedly connected with the ball screw, and the driving of the speed reducer is matched to realize the reciprocating movement of the measuring arm in the horizontal direction.

[0045] In addition, the embodiment also provides a specific implementation method for magnetic measurement

[0046] 1. Use a laser tracker to scan the outer circle of the magnetic pole to obtain the center of the magnetic pole circle.

[0047] 2. Use a laser tracker to scan the magnetic pole surface.

[0048] 3. Use a laser tracker to scan two points on the magnetic throttle to obtain a straight line.

[0049] 4. Establish coordinate system by point, line and surface.

[0050] 5. After the coordinate system is established, adjust the position of the moving slide to make the x-axis moving platform relative to the horizontal of the magnet to be measured, the Z-axis relative to the parallel of the magnet to be measured, and the center point of the Hall probe is adjusted according to the size of the air gap of the magnet.

[0051] 6. After the position of the magnetometer is adjusted, calibrate the magnetometer by using the laser tracker coordinate system, the coordinate system Z-axis is for the magnetometer moving x-axis, the coordinate system x-axis corresponds to the magnetometer moving Z-axis, the calibration purpose is to make the magnetometer x-axis and Z-axis orthogonal. The two axes of the magnetometer are relative to the parallel of the two axes of the coordinate system.

[0052] 7. Measure the distance between the target point of the measuring arm and the x-axis and Z-axis of the Hall probe (x1, Z1), and establish the coordinates of the point (Z1, x1) in the coordinate system.

[0053] 8. Adjust the measuring magnetometer by using the laser tracker monitoring function, and adjust the measuring magnetometer to make the actual measuring point coincide with the nominal point. The position of the magnetometer control position feedback reading is the relative center of the magnetometer.

[0054] 9. Adjust the center position in the control interface

[0055] 10. Start magnet measurement

[0056] Finally, it should be pointed out that the above examples are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. A device for measuring the magnetic field of a vertical cyclotron accelerator, comprising a worktable (1), characterized in that: The top of the workbench (1) is equipped with two double-bearing columns (20) that stand upright on the top of the workbench (1). Each side of the double-bearing column (20) is equipped with a Z-axis motion slide (14). Each of the two Z-axis motion slides (14) is slidably connected to a second slider (21). The surfaces of the two second sliders (21) are fixedly provided with an X-axis motion slide (9). The X-axis motion slide (9) is perpendicular to the Z-axis motion slide (14). The X-axis motion slide (9) slides up and down on the surface of the Z-axis motion slide (14). The surface of the Z-axis motion slide (14) is slidably connected to a first slider (11). The surface of the first slider (11) is fixedly provided with a measuring arm (17). The top of the measuring arm (17) is provided with a Hall probe mounting base (16).

2. The device for measuring the magnetic field of a vertical cyclotron accelerator according to claim 1, characterized in that: A crossbeam (13) is provided at the top of the two double-bearing columns (20). A middle bearing column (18) is fixedly installed in the middle of the crossbeam (13). An electric cylinder (15) is fixedly installed at the top of the middle bearing column (18). A ball screw (12) is connected downward to the electric cylinder (15). The ball screw (12) is rotatably connected to the top of the worktable (1). A threaded sleeve (19) is fixedly installed in the middle of the surface of the X-axis motion slide (9). The threaded sleeve (19) is threadedly connected to the ball screw (12).

3. The device for measuring the magnetic field of a vertical cyclotron accelerator according to claim 1, characterized in that: The X-axis motion slide (9) is rotatably provided with a ball screw (10), and a reducer (8) is fixedly installed at one end of the X-axis motion slide (9). The output shaft of the reducer (8) is connected to one end of the ball screw (10), and the slider (11) is threadedly connected to the ball screw (10).

4. The device for measuring the magnetic field of a vertical cyclotron accelerator according to claim 1, characterized in that: The bottom of the workbench (1) is provided with a traveling roller (2), and there are multiple traveling rollers (2). The multiple traveling rollers (2) are arranged along the edge of the workbench (1) at the bottom of the workbench (1).

5. The device for measuring the magnetic field of a vertical cyclotron accelerator according to claim 4, characterized in that: The bottom of the workbench (1) is provided with a support leg (3), which is detachable from the bottom of the workbench (1).

6. The device for measuring the magnetic field of a vertical cyclotron accelerator according to claim 1, characterized in that: A fixed base (5) is fixedly installed on the top of the workbench (1), and a fixed sleeve (4) is fixedly installed on the top of the workbench (1). The fixed base (5) is fixedly installed on the top of the workbench (1) through the fixed sleeve (4).

7. The apparatus for measuring the magnetic field of a vertical cyclotron accelerator according to claim 6, characterized in that: The bottom end of the double-bearing column (20) which stands upright on the top of the workbench (1) is fixedly installed on the surface of the fixed base (5). A side support frame (7) is provided between the surface of the fixed base (5) and the top of the double-bearing column (20) for support and fixation.

8. The device for measuring the magnetic field of a vertical cyclotron accelerator according to claim 1, characterized in that: One of the double-bearing columns (20) on one side is provided with a fixing hook (6).

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