Auxiliary assembling device for gradient coil assembly

Abstract

The utility model relates to an auxiliary assembling device for a gradient coil assembly. The auxiliary assembling device comprises rotating equipment and alignment equipment. The rotating device is used for installing a main coil and a shielding coil of the gradient coil assembly and can drive the main coil and the shielding coil to rotate around the rotating axis of the rotating device. The alignment equipment and the rotating equipment are arranged at intervals and can move relative to the rotating equipment; the alignment device is used for emitting alignment light beams so that the main coil and the shielding coil can receive the alignment light beams. When the gradient coil assembly of the medical magnetic resonance equipment is installed through the device, firstly, the main coil is installed on the rotating equipment, the alignment equipment moves to a preset position and emits an alignment light beam, and the rotating equipment drives the main coil to rotate so that the main coil can receive the alignment light beam; a user adjusts the position of the main coil according to the position of the alignment light beam, and then adjusts the position of the shielding coil in the same way, so that the mounting positions of the main coil and the shielding coil are more accurate.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to an auxiliary assembly device for a gradient coil assembly. Background Art

[0002] Medical magnetic resonance equipment is a medical imaging device that utilizes the characteristics of atomic nucleus spin motion to generate signals in an external magnetic field after being excited by radio frequency pulses. The signals are detected by detectors and input into computers, and then processed and converted to display images on the screen. The gradient coil assembly is an important core component of medical magnetic resonance equipment, which is used to generate a gradient magnetic field with a step distribution in the imaging area. The gradient coil assembly consists of a main coil and a shielding coil. The main coil is mainly used to form a gradient magnetic field, and the shielding coil is mainly used to form a gradient shielding magnetic field to suppress the stray field generated by the main coil and prevent the generation of eddy currents. When manufacturing medical magnetic resonance equipment, it is necessary to improve the assembly accuracy of the main coil and the shielding coil to avoid positional offset caused by cumulative processing errors, thereby generating a stray field that reduces the operating stability of the medical magnetic resonance equipment. Summary of the invention

[0003] Based on this, it is necessary to provide a gradient coil assembly auxiliary assembly device to improve the assembly accuracy of the main coil and gradient coil of a medical magnetic resonance device.

[0004] A gradient coil assembly auxiliary assembly device, the gradient coil assembly comprising a main coil and a shielding coil, the gradient coil assembly auxiliary assembly device comprising:

[0005] A rotating device, wherein the rotating device is used to install the main coil and the shielding coil, and the rotating device can drive the main coil and the shielding coil to rotate around the rotation axis of the rotating device;

[0006] The alignment device is spaced apart from the rotating device and can move relative to the rotating device; the alignment device is used to emit an alignment beam so that the main coil and the shielding coil receive the alignment beam.

[0007] In one of the embodiments, the alignment device includes a moving assembly and an alignment member;

[0008] The alignment member is installed on the moving assembly, and the moving assembly can drive the alignment member to move along the axial direction of the rotating device, so that the alignment member emits an alignment light beam at a preset position.

[0009] In one embodiment, the moving assembly includes a mounting frame, a guide rail, and a driving member;

[0010] The alignment member is installed on the mounting frame, the mounting frame is slidably connected to the guide rail, and the power output end of the driving member is connected to the mounting frame; the mounting frame can slide along the extension direction of the guide rail under the drive of the driving member, so that the alignment member installed on the mounting frame moves along the axial direction of the rotating device.

[0011] In one embodiment, the moving assembly further includes a screw rod, the screw rod is parallel to the guide rail, and the mounting bracket is mounted on the screw rod.

[0012] In one of the embodiments, the gradient coil assembly auxiliary assembly device further includes a controller;

[0013] The controller is electrically connected to the driving member, and the controller is used to control the driving member so that the driving member drives the mounting frame to move to a preset position;

[0014] The controller is also electrically connected to the alignment member. When the alignment member moves to a preset position, the controller is used to control the alignment member to be opened or closed.

[0015] In one embodiment, the rotating device includes a rotating shaft, and the main coil and the shielding coil are respectively sleeved on the rotating shaft, so that the main coil and the shielding coil rotate around the axis of the rotating shaft.

[0016] In one of the embodiments, the rotating device further comprises a positioning member, wherein the positioning member is mounted at one end of the rotating shaft, and the positioning member has a positioning surface, and the positioning surface is used for positioning and mounting the main coil and the shielding coil.

[0017] In one of the embodiments, the alignment beam includes a first beam and a second beam disposed at an angle to each other;

[0018] The first light beam and the second light beam correspond to alignment marks at preset positions of the main coil and the shielding coil, respectively.

[0019] In one of the embodiments, the gradient coil assembly auxiliary assembly device further includes a marking device;

[0020] The marking device is used to mark the alignment marks at the preset positions on the main coil and the shielding coil.

[0021] In one embodiment, the marking device is used to mark a plurality of spacing facility alignment marks on the main coil and the shielding coil along the axial direction and the circumferential direction of the rotating device.

[0022] When the gradient coil assembly of the medical magnetic resonance device is installed by the gradient coil assembly auxiliary assembly device, the main coil is first installed on the rotating device, and the alignment device moves relative to the rotating device so that the alignment device moves to a preset position. At this time, the alignment device emits an alignment beam, and the rotating device drives the main coil to rotate so that the main coil can receive the alignment beam. The user adjusts the position of the main coil according to the position of the alignment beam received by the main coil. After the position of the main coil is accurately adjusted, the shielding coil is then sleeved on the outer periphery of the main coil, and the position of the shielding coil is adjusted in the same way, so that the relative installation position between the main coil and the shielding coil is more accurate, the assembly accuracy of the main coil and the shielding coil is higher, the stray field of the medical magnetic resonance device is reduced, the eddy current is reduced, and the operation stability of the medical magnetic resonance device is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] FIG. 1 is a schematic diagram of installing a main coil and a shielding coil by an auxiliary assembly device for a gradient coil assembly provided in an embodiment of the present application.

[0024] FIG. 2 is a front view of the auxiliary assembly device for the gradient coil assembly shown in FIG. 1 assembling the main coil and the shielding coil.

[0025] FIG. 3 is a schematic diagram of an alignment mark on a main coil installed in some embodiments of the present application.

[0026] FIG. 4 is a partial enlarged view of point A shown in FIG. 3 .

[0027] FIG. 5 is a schematic diagram of alignment marks on a main coil installed in some other embodiments of the present application.

[0028] Figure markings: 100-rotating device; 110-rotating axis; 120-positioning member; 121-positioning surface; 200-alignment device; 210-moving component; 211-mounting frame; 212-guide rail; 213-driving member; 214-screw rod; 215-mounting base; 220-alignment member; 300-controller; 410-main coil; 420-shielding coil; 430-alignment mark; 431-first alignment mark; 432-second alignment mark. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0030] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0031] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0032] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0033] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0034] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0035] Medical magnetic resonance equipment is a medical imaging device that utilizes the characteristics of atomic nucleus spin motion, generates signals in an external magnetic field after being excited by radio frequency pulses, detects with a detector and inputs into a computer, and displays images on a screen after being processed and converted. The gradient coil assembly is an important core component of the medical magnetic resonance equipment, which is used to generate a gradient magnetic field with a step distribution in the imaging area. The gradient coil assembly consists of a main coil and a shielding coil. The main coil is mainly used to form a gradient magnetic field, and the shielding coil is mainly used to form a gradient shielding magnetic field to suppress the escape field generated by the main coil and prevent the generation of eddy currents. The eddy current effect will cause strong heating in the cooling system of the magnet, which may affect the normal operation of the magnetic resonance imaging system and even cause the magnet to quench. In order to better reduce the generation of the escape field, in addition to the preliminary design work, when manufacturing the medical magnetic resonance equipment, it is necessary to improve the assembly accuracy of the main coil and the shielding coil to avoid the position offset caused by the cumulative processing error, thereby generating the escape field and reducing the operating stability of the medical magnetic resonance equipment. Based on the above problems, the present application provides a gradient coil assembly auxiliary assembly device.

[0036] 1 and 2, FIG1 shows a schematic diagram of a gradient coil assembly auxiliary assembly device provided in an embodiment of the present application installing a main coil 410 and a shielding coil 420. FIG2 shows a front view of the gradient coil assembly auxiliary assembly device shown in FIG1 installing a main coil 410 and a shielding coil 420.

[0037] Some embodiments of the present application provide a gradient coil assembly auxiliary assembly device, which includes a rotating device 100 and an alignment device 200. The rotating device 100 is used to install the main coil 410 and the shielding coil 420 of the gradient coil assembly, and the rotating device 100 can drive the main coil 410 and the shielding coil 420 to rotate around their own rotation axis; the alignment device 200 is spaced apart from the rotating device 100, and the alignment device 200 can move relative to the rotating device 100; the alignment device 200 is used to emit an alignment beam so that the main coil 410 and the shielding coil 420 receive the alignment beam.

[0038] When the gradient coil assembly of the medical magnetic resonance device is installed by the gradient coil assembly auxiliary assembly device, the main coil 410 is first installed on the rotating device 100, and the alignment device 200 moves relative to the rotating device 100 so that the alignment device 200 moves to a preset position. At this time, the alignment device 200 emits an alignment beam, and the rotating device 100 drives the main coil 410 to rotate so that the main coil 410 can receive the alignment beam. The user adjusts the position of the main coil 410 according to the position of the alignment beam received by the main coil 410. After the position of the main coil 410 is accurately adjusted, the shielding coil 420 is then sleeved on the outer periphery of the main coil 410, and the position of the shielding coil 420 is adjusted in the same way, so that the relative installation position between the main coil 410 and the shielding coil 420 is relatively accurate, and the assembly accuracy of the main coil 410 and the shielding coil 420 is relatively high, reducing the stray field of the medical magnetic resonance device, reducing eddy current, and improving the operation stability of the medical magnetic resonance device.

[0039] The relative position accuracy between the main coil 410 and the shielding coil 420 installed by the gradient coil assembly auxiliary assembly device is high, so that the axial center and radial center of the main coil 410 and the shielding coil 420 are kept on the same straight line, so that the shielding coil 420 achieves the best shielding effect, thereby suppressing the escape field generated by the main coil 410 and preventing the generation of eddy currents.

[0040] It should be noted that the rotating device 100 is a mold for preparing and assembling the main coil 410 and the shielding coil 420 .

[0041] It should be noted that the gradient coil assembly auxiliary assembly device provided in the present application can not only install the main coil 410 and the shielding coil 420 , but also install other cylindrical structural parts that need to be installed in alignment.

[0042] The following is a detailed description of the structure of the gradient coil assembly auxiliary assembly device. Referring to FIG. 1 and FIG. 2 , the alignment device 200 of the gradient coil assembly auxiliary assembly device provided in some embodiments of the present application includes a moving component 210 and an alignment member 220; the alignment member 220 is installed on the moving component 210, and the moving component 210 can drive the alignment member 220 to move along the axial direction of the rotating device 100. Specifically, the axial direction of the rotating device 100 is the xx' direction in FIG. 1 and FIG. 2 , so that the alignment member 220 emits an alignment beam at a preset position. The moving component 210 drives the alignment member 220 to move along the axial direction of the rotating device 100, so that the alignment member 220 can move to a preset position relative to the axial direction of the rotating device 100. At this time, the alignment member 220 emits an alignment beam at the preset position, thereby adjusting and determining the installation position of the main coil 410 and the shielding coil 420.

[0043] In one specific embodiment, the alignment member 220 is a laser level, and the alignment beam is formed by the laser emitted by the laser level.

[0044] Please refer to FIG. 1 and FIG. 2 . The moving assembly 210 of the gradient coil assembly auxiliary assembly device provided in some embodiments of the present application includes a mounting frame 211, a guide rail 212 and a driving member 213. The alignment member 220 is mounted on the mounting frame 211, the mounting frame 211 is slidably connected to the guide rail 212, and the power output end of the driving member 213 is connected to the mounting frame 211. The mounting frame 211 can slide along the extension direction of the guide rail 212 under the drive of the driving member 213, so that the alignment member 220 mounted on the mounting frame 211 moves along the axis of the rotating device 100. When it is necessary to drive the alignment member 220 to move along the axial direction of the rotating device 100, the driving member 213 drives the mounting frame 211 to slide along the extension direction of the guide rail 212, thereby causing the alignment member 220 to move along the axial direction of the rotating device 100, and the entire moving process is relatively simple and convenient.

[0045] Referring to FIG. 1 and FIG. 2 , the moving assembly 210 of the gradient coil assembly auxiliary assembly device provided in some embodiments of the present application further includes a screw rod 214, the screw rod 214 is parallel to the guide rail 212, and the mounting frame 211 is mounted on the screw rod 214. By setting the screw rod 214, the driving member 213 drives the screw rod 214 to rotate around its own rotation axis, and then the mounting frame 211 mounted on the screw rod 214 slides along the extension direction of the guide rail 212 under the guidance of the guide rail 212.

[0046] Please refer to Figures 1 and 2. In one embodiment, there are two guide rails 212. The two guide rails 212 are respectively arranged at both ends of the screw rod 214, so that when the mounting frame 211 slides along the extension direction of the guide rails 212, it can slide through the guiding effect of the two guide rails 212, and the sliding process of the mounting frame 211 is smoother.

[0047] Please refer to FIG. 1 and FIG. 2 . In one embodiment, the moving assembly 210 further includes a mounting base 215 . The mounting base 215 is connected to one end of the two guide rails 212 , and the driving member 213 is also mounted on the mounting base 215 .

[0048] Please refer to FIG. 1 . The gradient coil assembly auxiliary assembly device provided in some embodiments of the present application further includes a controller 300. The controller 300 is electrically connected to the driving member 213. The controller 300 is used to control the driving member 213 so that the driving member 213 drives the mounting frame 211 to move to a preset position. The controller 300 is also electrically connected to the alignment member 220. When the alignment member 220 moves to a preset position, the controller 300 is used to control the opening or closing of the alignment member 220. By setting the controller 300 and controlling the driving of the driving member 213 and the opening or closing of the alignment member 220 through the controller 300, the alignment member 220 emits an alignment beam at a preset position, and the entire gradient coil assembly auxiliary assembly device is more automated, and the speed of installing the main coil 410 and the shielding coil 420 will be faster and more efficient.

[0049] Please refer to FIG. 1 and FIG. 2 , the rotating device 100 of the gradient coil assembly auxiliary assembly device provided in some embodiments of the present application includes a rotating shaft 110, and the main coil 410 and the shielding coil 420 are respectively sleeved on the rotating shaft 110, so that the main coil 410 and the shielding coil 420 rotate around the axis of the rotating shaft 110. By setting the rotating shaft 110, the main coil 410 and the shielding coil 420 can rotate around the axis of the rotating shaft 110 driven by the rotating shaft 110, and then the alignment member 220 can adjust the multiple installation positions of the main coil 410 and the shielding coil 420, so that the relative position accuracy of the main coil 410 and the shielding coil 420 finally installed is high.

[0050] Referring to FIG. 1 and FIG. 2 , the rotating device 100 of the gradient coil assembly auxiliary assembly device provided in some embodiments of the present application further includes a positioning member 120, which is mounted at one end of the rotating shaft 110, and the positioning member 120 has a positioning surface 121, and the positioning surface 121 is used for positioning and installing the main coil 410 and the shielding coil 420. By providing the positioning member 120, when the main coil 410 and the shielding coil 420 are mounted on the rotating shaft 110, the main coil 410 and the shielding coil 420 can be axially positioned and installed through the positioning surface 121 of the positioning member 120.

[0051] Please refer to Figures 3-5. Figure 3 shows a schematic diagram of an alignment mark 430 on a main coil 410 installed in some embodiments of the present application. Figure 4 shows a partial enlarged view of A shown in Figure 3. Figure 5 shows a schematic diagram of an alignment mark 430 on a main coil 410 installed in other embodiments of the present application.

[0052] The alignment beams of the gradient coil assembly auxiliary assembly device provided in some embodiments of the present application include a first beam and a second beam set at an angle to each other; the first beam and the second beam correspond to the alignment marks 430 at the preset positions of the main coil 410 and the shielding coil 420, respectively. By making the first beam and the second beam correspond to the alignment marks 430 of the main coil 410 and the shielding coil 420, the relative installation positions of the main coil 410 and the shielding coil 420 are adjusted. This adjustment method can achieve rapid positioning through the intersection of the first beam and the second beam, which is more convenient and rapid.

[0053] The gradient coil assembly auxiliary assembly device provided in some embodiments of the present application further includes a marking device (not shown in the figure); the marking device is used to mark the alignment mark 430 at the preset position on the main coil 410 and the shielding coil 420. The alignment mark 430 is marked at the preset position on the main coil 410 and the shielding coil 420 by the marking device, so as to facilitate the alignment adjustment of the alignment beam emitted by the alignment member 220 and the alignment mark 430.

[0054] The marking device of the gradient coil assembly auxiliary assembly device provided in some embodiments of the present application is used to punch a plurality of alignment marks 430 of spacing facilities on the main coil 410 and the shielding coil 420 along the axial direction and the circumferential direction of the rotating device 100; specifically, the axial direction of the rotating device 100 is the xx' direction in FIG. 1, and the circumferential direction of the rotating device 100 is the plane where the yy'zz' in FIG. 1 is located. By punching a plurality of alignment marks 430 on the main coil 410 and the shielding coil 420 along the axial direction of the rotating device 100 through the marking device, multiple alignment installation points can be provided when the main coil 410 and the shielding coil 420 are aligned and installed by the alignment member 220, thereby making the installation accuracy of the main coil 410 and the shielding coil 420 higher.

[0055] Please refer to Figures 3 and 5. In some embodiments, each main coil 410 and shielding coil 420 has nine alignment marks 430, and the nine alignment marks 430 are respectively arranged at intervals along the axial and circumferential directions of the rotating device 100, so that the left, middle, right, upper, middle and lower positions of the main coil 410 and the shielding coil 420 can be aligned and installed, so that the final installation accuracy between the main coil 410 and the shielding coil 420 is high.

[0056] It should be noted that Figures 3 and 5 are schematic diagrams of nine alignment marks 430 provided on the main coil. The nine alignment marks 430 provided on the shielding coil 420 are provided at the same positions as those on the main coil 410.

[0057] Referring to FIG. 4 , in some embodiments, the alignment mark 430 includes a first alignment mark 431 and a second alignment mark 432 that are arranged at an angle to each other, and the angle between the first alignment mark 431 and the second alignment mark 432 is equal to the angle between the first light beam and the second light beam. Thus, during the alignment process, the alignment light beam and the alignment mark 430 are aligned by the first alignment mark 431 being aligned with the first light beam and the second alignment mark 432 being aligned with the second light beam.

[0058] In one embodiment, the angle between the first alignment mark 431 and the second alignment mark 432 is 90°, so the alignment mark is a cross-shaped structure, which is convenient for adjusting the alignment beam and aligning with the alignment mark 430. It should be noted that the angle between the first alignment mark 431 and the second alignment mark 432 is not limited, and it can also be 75°, 105°, etc.

[0059] It should be noted that there is no limitation on the shapes of the first alignment mark 431 and the second alignment mark 432. Referring to FIG. 3 and FIG. 4, in some embodiments, the first alignment mark 431 and the second alignment mark 432 are rectangular in shape. Referring to FIG. 5, in other embodiments, the first alignment mark 431 and the second alignment mark 432 are circular in shape with multiple intervals.

[0060] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0061] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A gradient coil assembly auxiliary assembly device, characterized in that: The gradient coil assembly comprises a main coil (410) and a shielding coil (420), and the gradient coil assembly auxiliary assembly device comprises: A rotating device (100), the rotating device (100) being used to install the main coil (410) and the shielding coil (420), and the rotating device (100) being capable of driving the main coil (410) and the shielding coil (420) to rotate around a rotation axis of the rotating device (100); An alignment device (200), the alignment device (200) and the rotating device (100) are spaced apart and the alignment device (200) is movable relative to the rotating device (100); the alignment device (200) is used to emit an alignment light beam so that the main coil (410) and the shielding coil (420) receive the alignment light beam.

2. The gradient coil assembly auxiliary assembly device according to claim 1, characterized in that: The alignment device (200) comprises a moving component (210) and an alignment member (220); The alignment member (220) is mounted on the moving assembly (210), and the moving assembly (210) can drive the alignment member (220) to move along the axial direction of the rotating device (100), so that the alignment member (220) emits an alignment light beam at a preset position.

3. The gradient coil assembly auxiliary assembly device according to claim 2, characterized in that: The moving assembly (210) comprises a mounting frame (211), a guide rail (212) and a driving member (213); The alignment member (220) is mounted on the mounting frame (211); the mounting frame (211) is slidably connected to the guide rail (212); a power output end of the driving member (213) is connected to the mounting frame (211); the mounting frame (211) can slide along the extension direction of the guide rail (212) under the drive of the driving member (213), so that the alignment member (220) mounted on the mounting frame (211) moves along the axial direction of the rotating device (100).

4. The gradient coil assembly auxiliary assembly device according to claim 3, characterized in that: The moving assembly (210) further comprises a screw rod (214), wherein the screw rod (214) is parallel to the guide rail (212), and the mounting frame (211) is mounted on the screw rod (214).

5. The gradient coil assembly auxiliary assembly device according to claim 3, characterized in that: The gradient coil assembly auxiliary assembly device further comprises a controller (300); The controller (300) is electrically connected to the driving member (213), and the controller (300) is used to control the driving member (213) so that the driving member (213) drives the mounting frame (211) to move to a preset position; The controller (300) is also electrically connected to the alignment member (220); when the alignment member (220) moves to a preset position, the controller (300) is used to control the alignment member (220) to open or close.

6. The gradient coil assembly auxiliary assembly device according to claim 1, characterized in that: The rotating device (100) comprises a rotating shaft (110), and the main coil (410) and the shielding coil (420) are respectively sleeved on the rotating shaft (110), so that the main coil (410) and the shielding coil (420) rotate around the axis of the rotating shaft (110).

7. The gradient coil assembly auxiliary assembly device according to claim 6, characterized in that: The rotating device (100) further comprises a positioning member (120), wherein the positioning member (120) is mounted on one end of the rotating shaft (110), and the positioning member (120) has a positioning surface (121), and the positioning surface (121) is used for positioning and mounting the main coil (410) and the shielding coil (420).

8. The gradient coil assembly auxiliary assembly device according to any one of claims 1 to 7, characterized in that: The alignment beam comprises a first beam and a second beam arranged at an angle to each other; The first light beam and the second light beam correspond to alignment marks (430) at preset positions of the main coil (410) and the shielding coil (420), respectively.

9. The gradient coil assembly auxiliary assembly device according to claim 8, characterized in that: The gradient coil assembly auxiliary assembly device also includes a marking device; The marking device is used to mark alignment marks (430) at preset positions on the main coil (410) and the shielding coil (420).

10. The gradient coil assembly auxiliary assembly device according to claim 9, characterized in that: The marking device is used to mark a plurality of spacing facility alignment marks (430) on the main coil (410) and the shielding coil (420) along the axial direction and the circumferential direction of the rotating device (100).

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