CN118711969A - A radial permanent magnet assembly assembly tool and assembly method - Google Patents

Abstract

The invention relates to the technical field of permanent magnets, and specifically to a radial permanent magnet assembly assembly tool and an assembly method, comprising a tool structure and a radial permanent magnet assembly, wherein the tool structure can be used to assemble the radial permanent magnet assembly, wherein the radial permanent magnet assembly comprises a permanent magnet fixing ring and a permanent magnet group, wherein the permanent magnet fixing ring is provided with a permanent magnet group, wherein the permanent magnet fixing ring can also be provided with a permanent magnet replacement module group for replacing the permanent magnet group, wherein the tool structure comprises a permanent magnet assembly bracket, wherein the permanent magnet assembly bracket is provided with a radial assembly tool support column which can be connected to the permanent magnet assembly bracket, wherein the radial assembly tool support column can be used to support the radial permanent magnet assembly, wherein the permanent magnet assembly bracket is provided with a clamping plate which can install the permanent magnet group in the radial permanent magnet assembly, wherein the permanent magnet assembly bracket is provided with a positioning component which can position the permanent magnet group and the positioning component can cooperate with the clamping plate.

Description

A radial permanent magnet assembly assembly tool and assembly method

Technical Field

The invention relates to the technical field of permanent magnets, in particular to an assembly tool and an assembly method for a radial permanent magnet component.

Background Art

Permanent magnet assembly can be spliced into a 360° ring by using glue (glue type: epoxy glue, high temperature glue, etc.) through block permanent magnets (permanent magnet types: NdFeB, SmCo, AlNiCo or ferrite) at a certain angle (radial, oblique magnetization direction). The outer circle is fixed by a fixing ring (magnetic conductive material or non-magnetic conductive material, magnetic conductive material grades 1010, DT4, etc., non-magnetic conductive material grades titanium alloy, stainless steel 304, etc.). In specific applications, the spatial magnetic field in the inner circle is mainly used.

However, when assembling the permanent magnet assembly, since this type of permanent magnet assembly cannot be magnetized after assembly, the non-magnetic assembly method cannot be used. Therefore, the magnetic assembly of the permanent magnet is difficult. The permanent magnets have strong repulsive forces with each other under strong magnetism, and the radial and axial positioning accuracy of the permanent magnet assembly is high, so it is difficult to ensure the accuracy by direct bonding. In the absence of tooling to assist in assembly, the assembly efficiency is low and it is easy to be damaged. Therefore, a radial permanent magnet assembly assembly tool and assembly method are proposed.

Summary of the invention

1. Technical issues to be solved

In view of the deficiencies in the prior art, the present invention provides an assembly tool and an assembly method for a radial permanent magnet assembly, which solves the problems raised in the above background technology.

(II) Technical solution

To achieve the above objectives, the present invention is implemented through the following technical solutions: a radial permanent magnet assembly assembly tool, including a tool structure and a radial permanent magnet assembly, the tool structure can be used to assemble the radial permanent magnet assembly, the radial permanent magnet assembly includes a permanent magnet fixing ring and a permanent magnet group, the permanent magnet fixing ring is provided with a permanent magnet group, the permanent magnet fixing ring can also be provided with a permanent magnet replacement module group for replacing the permanent magnet group, the tool structure includes a permanent magnet assembly bracket, the permanent magnet assembly bracket is provided with a radial assembly tool support column that can be connected to the permanent magnet assembly bracket, the radial assembly tool support column can be used to support the radial permanent magnet assembly, the permanent magnet assembly bracket is provided with a clamping plate that can install the permanent magnet group in the radial permanent magnet assembly, the permanent magnet assembly bracket is provided with a positioning component that can position the permanent magnet group and the positioning component can cooperate with the clamping plate.

Furthermore, the permanent magnet fixing ring is provided with an inner circle fixing block which can assist in positioning the permanent magnet group or the permanent magnet replacement module group, and the outside of the permanent magnet fixing ring is installed with a radial fastening ring, and the radial fastening ring is provided with a fastening ring positioning bolt which can ensure the radial installation accuracy of the permanent magnet group.

Furthermore, the permanent magnet group is formed by splicing permanent magnets that are continuously arranged in sequence, and the permanent magnets that are continuously arranged in sequence can be spliced into a ° annular shape and form a circular ring. The permanent magnet replacement module group is formed by splicing permanent magnet replacement modules that are continuously arranged in sequence, and the permanent magnet replacement modules that are continuously arranged in sequence can be spliced into a 360° annular shape and form a circular ring. The structure of the permanent magnet replacement module group is equal to the structure of the permanent magnet group, but the permanent magnet replacement module group is not magnetized; the surface of the permanent magnet fixing ring is circumferentially provided with a socket, and the position of the plug is located between two permanent magnets arranged at intervals.

Further, the positioning assembly includes an annular mobile frame that can move up and down along the permanent magnet assembly bracket, the annular mobile frame can rotate circumferentially, the annular mobile frame is provided with a slot that can be compatible with the permanent magnet or the permanent magnet replacement module, and the annular mobile frame is provided with a positioning ball that can position the movement of the annular mobile frame and the positioning ball is compatible with the jack. The positioning assembly can be disassembled to facilitate the subsequent curing operation after the permanent magnet assembly is assembled. Through the positioning assembly that is set, when the permanent magnet needs to be assembled, the annular mobile frame can be installed on the surface of the radial permanent magnet assembly, and the position of the annular mobile frame can be rotated by the handle, so that the slot can be made to correspond to one of the permanent magnet replacement module groups, and then the permanent magnet is conveniently replaced with the permanent magnet replacement module. The replaced replacement module can be received by a limiting structure, which is convenient for the operator to take and place. Multiple rollers can be set in the slot to prevent the amount of glue in the permanent magnet from becoming less during the replacement process and affecting the subsequent assembly.

Furthermore, a moving block capable of moving up and down along the permanent magnet assembly assembly bracket is provided on the outside of the annular moving frame, an annular rail is provided on the surface of the annular rail, a fixing rod is provided on the surface of the annular rail, an insert block capable of being inserted into the moving block is provided at the end of the fixing rod, and a handle capable of driving the annular moving frame to rotate is provided on the annular moving frame.

Furthermore, a clamping plate driving rod for driving the clamping plate to move up and down is provided on the permanent magnet assembly bracket.

Furthermore, the permanent magnet assembly bracket can be provided with a limiting structure for limiting the support column of the radial assembly tooling, and the limiting structure includes a base that can be installed on the permanent magnet assembly bracket, a column is provided in the base and the column extends upward to contact the inner circle fixed block, a plurality of connecting rods are circumferentially arranged on the surface of the column, and a clamping plate that can limit the radial assembly tooling support column is hollowly sleeved on the connecting rod.

Furthermore, the radial assembly tooling support column is composed of multiple plates with arc-shaped cross-sections and gaps are left between adjacent plates. Multiple connecting rods are arranged along the gaps in the radial assembly tooling support column. The cross-sectional shape of the clamping plate is arc-shaped. The clamping plate is arranged along the inner wall of the radial assembly tooling support column. The connecting rod is provided with a locking nut for limiting and locking the clamping plate. The base bracket can be installed in the permanent magnet assembly bracket by installing bolts, and the cross-sectional shape of the base bracket is a "┴"-shaped annular circle.

Furthermore, after the permanent magnets are installed and the radial assembly tool support column and the limiting structure are disassembled, an axial positioning fixing ring can be placed above the assembled radial permanent magnet assembly.

An assembly method for a radial permanent magnet assembly assembly tool, characterized in that the assembly method comprises:

The first step: by installing the limiting structure in the permanent magnet assembly bracket, after the installation is completed, the radial assembly tool support column can be installed in the limiting structure;

Step 2: After that, the radial permanent magnet assembly needs to be installed. However, before installing the radial permanent magnet assembly, the permanent magnet assembly needs to be replaced by the permanent magnet replacement module assembly for installation. After the replacement is completed, the permanent magnet replacement module assembly is installed behind the permanent magnet fixing ring, and then the inner circle fixing block can be installed in the permanent magnet replacement module assembly. After that, the radial fastening ring is continued to be installed on the outside of the permanent magnet fixing ring. Finally, the fastening ring positioning bolts are circumferentially installed on the outer surface of the radial fastening ring.

Step 3: After completing step 1 and step 2, the overall structure replaced by the permanent magnet replacement module group can be placed on the radial assembly tooling support column, and then the slot can be moved to correspond to one of the permanent magnet replacement modules through the provided positioning assembly, and then glue is applied to the outer cylindrical surface and two side surfaces of the permanent magnet and placed in the slot;

Step 4: Then, press down the clamping plate to move the clamping plate downward, so that the permanent magnet in the slot can be pressed in and replace a corresponding permanent magnet replacement module. When the permanent magnet has not fully entered, the positioning assembly can be removed, and the permanent magnet can be pressed downward until the permanent magnet replacement module of this part falls into the limiting structure, and then the fastening ring positioning bolt is tightened to fix the radial position of the permanent magnet. When installing the subsequent permanent magnets, it is only necessary to install the positioning assembly and rotate the positioning assembly so that the slot in the positioning assembly corresponds to the next permanent magnet replacement module. When replacing the permanent magnet, it is only necessary to repeat the above assembly operation until the 360° overall assembly is completed.

Step 5: After completing the 360° spliced radial permanent magnet assembly, it is necessary to remove the radial assembly tooling support column and the limiting structure, and place an axial positioning fixing ring on the top of the radial permanent magnet assembly. The clamping plate can be used to press the axial positioning fixing ring downward, and then the radial permanent magnet assembly can be axially compressed and limited until the glue is cured, thereby completing the overall assembly of the radial permanent magnet assembly.

Compared with the prior art, the radial permanent magnet assembly assembly tool and assembly method not only ensure the radial and axial accuracy of the installed radial permanent magnet, but also facilitate the assembly of the radial permanent magnet to be magnetized, thereby improving its assembly efficiency.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of the structure of the present invention;

FIG2 is a schematic diagram of a partial cross-section of the structure of FIG1 of the present invention;

FIG3 is a schematic structural diagram of another viewing angle of FIG2 of the present invention;

FIG4 is a schematic diagram of a part of the structure of FIG3 of the present invention;

FIG5 is a schematic diagram of the structure of the clamping plate in the tooling structure of the present invention clamping the axial positioning fixing ring;

FIG6 is a front view schematic diagram of the structure of FIG5 of the present invention;

FIG7 is a schematic structural diagram of a radial permanent magnet assembly of the present invention;

FIG8 is a schematic diagram of the top view of the structure of FIG7 of the present invention;

FIG9 is a schematic diagram of the structure of a permanent magnet replacement module group and a radial fastening ring in a radial permanent magnet assembly of the present invention;

FIG10 is a schematic diagram of the top view of the structure of FIG9 of the present invention;

In the figure: 1. tooling structure; 2. permanent magnet assembly assembly bracket; 3. radial assembly tooling support column; 4. radial permanent magnet assembly; 5. clamping plate; 6. permanent magnet fixing ring; 7. permanent magnet group; 8. positioning assembly; 9. permanent magnet replacement module group; 10. radial fastening ring; 11. fastening ring positioning bolt; 12. permanent magnet; 13. permanent magnet replacement module; 14. socket; 15. annular movable frame; 16. slot; 17. positioning ball; 18. moving block; 19. annular rail; 20. fixing rod; 21. handle; 22. clamping plate driving rod; 23. limiting structure; 24. bottom support; 25. column; 26. connecting rod; 27. clamping plate; 28. locking nut; 29. axial positioning fixing ring; 30. inner circle fixing block; 31. plug block.

DETAILED DESCRIPTION

The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

Please refer to Figures 1 to 10. The present invention provides a technical solution: a radial permanent magnet assembly assembly tool, including a tool structure 1 and a radial permanent magnet assembly 4. The tool structure 1 can be used to assemble the radial permanent magnet assembly 4. The radial permanent magnet assembly 4 includes a permanent magnet fixing ring 6 and a permanent magnet group 7. The permanent magnet fixing ring 6 is provided with a permanent magnet group 7. The permanent magnet fixing ring 6 is provided with an inner circle fixing block 30 that can assist in positioning the permanent magnet group 7 or the permanent magnet replacement module group 9. The outer circle fixing block 30 of the permanent magnet fixing ring 6 is provided with a permanent magnet group 7. The radial fastening ring 10 is installed at the bottom, and the radial fastening ring 10 is provided with a fastening ring positioning bolt 11 that can ensure the radial installation accuracy of the permanent magnet group 7. The permanent magnet group 7 is composed of permanent magnets 12 that are continuously arranged in sequence. The permanent magnets 12 that are continuously arranged in sequence can be spliced into a 360° annular shape and form a circular ring. The permanent magnet replacement module group 9 is composed of permanent magnet replacement modules 13 that are continuously arranged in sequence. The permanent magnet replacement modules 13 that are continuously arranged in sequence can be spliced into a 360° annular shape. ° circumferential shape and forming a circular ring, the structure of the permanent magnet replacement module group 9 is equal to the structure of the permanent magnet group 7, but the permanent magnet replacement module group 9 has not been magnetized; the surface of the permanent magnet fixing ring 6 is circumferentially provided with a plug hole 14, and the position of the plug hole 14 is located between two permanent magnets 12 arranged at intervals. The permanent magnet fixing ring 6 can also be provided with a permanent magnet replacement module group 9 for replacing the permanent magnet group 7, and the tooling structure 1 includes a permanent magnet component assembly bracket 2, and the permanent magnet component assembly bracket 2 is provided with a permanent magnet component The radial assembly tool support column 3 connected to the assembly bracket 2 can be provided with a limiting structure 23 for limiting the radial assembly tool support column 3 in the permanent magnet assembly bracket 2. The limiting structure 23 includes a bottom bracket 24 that can be installed on the permanent magnet assembly bracket 2. A column 25 is provided in the bottom bracket 24 and the column 25 extends upward to contact the inner circle fixing block 30. A plurality of connecting rods 26 are circumferentially arranged on the surface of the column 25. The connecting rods 26 are sleeved with a spacer that can limit the radial assembly tool support column 3. The clamping plate 27 in the radial assembly tool support column 3 is composed of a plurality of plates with arc-shaped cross-sections and gaps are left between adjacent plates. A plurality of connecting rods 26 are arranged along the gaps in the radial assembly tool support column 3. The cross-sectional shape of the clamping plate 27 is arc-shaped. The clamping plate 27 is arranged along the inner wall of the radial assembly tool support column 3. The connecting rod 26 is provided with a locking nut 28 for limiting and locking the clamping plate 27. The bottom bracket 24 can be installed on the permanent magnet assembly support by installing bolts. In the frame 2, the cross-sectional shape of the bottom bracket 24 is a ring-shaped circle similar to "┴", the radial assembly tool support column 3 can be used to support the radial permanent magnet assembly 4, the permanent magnet assembly assembly bracket 2 is provided with a clamping plate 5 that can install the permanent magnet group 7 in the radial permanent magnet assembly 4, the permanent magnet assembly assembly bracket 2 is provided with a clamping plate driving rod 22 for driving the clamping plate 5 to move up and down, and the permanent magnet assembly assembly bracket 2 is provided with a positioning component 8 that can position the permanent magnet group 7 and the positioning component 8 can be with the clamping plate 5, the positioning assembly 8 includes an annular moving frame 15 that can move up and down along the permanent magnet assembly assembly bracket 2, the annular moving frame 15 can rotate in a circumferential direction, the annular moving frame 15 is provided with a slot 16 that can be compatible with the permanent magnet 12 or the permanent magnet replacement module 13, the annular moving frame 15 is provided with a positioning ball 17 that can position the movement of the annular moving frame 15 and the positioning ball 17 is compatible with the socket 14, and the outside of the annular moving frame 15 is provided with a positioning ball 17 that can move up and down along the permanent magnet assembly assembly bracket 2. A moving block 18 is displaced downward, and an annular rail 19 is arranged on the surface of the annular rail 19. A fixing rod 20 is arranged on the surface of the fixing rod 20. An insert block 31 which can be inserted into the moving block 18 is arranged at the end of the fixing rod 20. A handle 21 which can drive the annular moving frame 15 to rotate is arranged on the annular moving frame 15. After the permanent magnet 12 is installed and the radial assembly tooling support column 3 and the limiting structure 23 are disassembled, an axial positioning fixing ring 29 can be placed above the assembled radial permanent magnet assembly 4.

Please refer to FIG. 1 to FIG. 10 , the present invention provides a technical solution: an assembly method of a radial permanent magnet assembly assembly tool, the assembly method comprising:

Step 1: Install the limiting structure 23 in the permanent magnet assembly bracket 2. After the installation is completed, install the radial assembly tool support column 3 in the limiting structure 23;

Step 2: After that, the radial permanent magnet assembly 4 needs to be installed. However, before installing the radial permanent magnet assembly 4, it is necessary to replace the permanent magnet group 7 with the permanent magnet replacement module group 9 for installation. After the replacement is completed, the permanent magnet replacement module group 9 is installed on the permanent magnet fixing ring 6, and then the inner circle fixing block 30 can be installed in the permanent magnet replacement module group 9. After that, the radial fastening ring 10 is continued to be installed on the outside of the permanent magnet fixing ring 6. Finally, the fastening ring positioning bolts 11 are circumferentially installed on the outer surface of the radial fastening ring 10;

Step 3: After completing step 1 and step 2, the whole structure replaced by the permanent magnet replacement module group 9 can be placed on the radial assembly tooling support column 3, and then the positioning component 8 can be used to move the slot 16 to correspond to one of the permanent magnet replacement modules 13, and then glue is applied to the outer cylindrical surface and both side surfaces of the permanent magnet 12 and placed in the slot 16;

Step 4: Then, press down the clamping plate 5 to move the clamping plate 5 downward, so that the permanent magnet 12 in the slot 16 can be pressed in and replace a corresponding permanent magnet replacement module 13. When the permanent magnet 12 has not yet fully entered, the positioning component 8 can be removed, and the permanent magnet 12 can be pressed downward continuously until the permanent magnet replacement module 13 of this part falls into the limiting structure 23, and then the fastening ring positioning bolt 11 is tightened to fix the radial position of the permanent magnet. When installing the subsequent permanent magnet 12, it is only necessary to install the positioning component 8 and rotate the positioning component 8 so that the slot 16 in the positioning component 8 corresponds to the next permanent magnet replacement module 13. When replacing the permanent magnet, it is only necessary to repeat the above assembly operation until the 360° overall assembly is completed.

Step 5: After completing the 360° splicing of the radial permanent magnet assembly 4, it is necessary to remove the radial assembly tooling support column 3 and the limiting structure 23, and place an axial positioning fixing ring 29 above the radial permanent magnet assembly 4. The clamping plate 5 can be used to press the axial positioning fixing ring 29 downward, and then the radial permanent magnet assembly 4 can be axially compressed and limited until the glue is cured, thereby completing the overall assembly of the radial permanent magnet assembly 4.

The electrical components mentioned in this article are all connected to an external main controller and 380V commercial power, and the main controller can be a conventional known device for control such as a computer.

In the description of this specification, the terms "connect", "install", "fix", "set", etc. are understood in a broad sense. For example, "connection" can be a fixed connection or an indirect connection through an intermediate component without affecting the relationship between components and the technical effect. It can also be an integral connection or a partial connection. As in this example, for ordinary technicians in this field, the specific meanings of the above terms in the present invention or invention can be understood according to the specific circumstances.

The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims (10)

1. A radial permanent magnet assembly assembly tool, characterized in that it comprises a tool structure (1) and a radial permanent magnet assembly (4), wherein the tool structure (1) can be used to assemble the radial permanent magnet assembly (4), wherein the radial permanent magnet assembly (4) comprises a permanent magnet fixing ring (6) and a permanent magnet group (7), wherein the permanent magnet fixing ring (6) is provided with the permanent magnet group (7), and wherein the permanent magnet fixing ring (6) can also be provided with a permanent magnet replacement module group (9) for replacing the permanent magnet group (7), wherein the tool structure (1) comprises a permanent magnet assembly bracket (2 ), the permanent magnet assembly bracket (2) is provided with a radial assembly tool support column (3) that can be connected to the permanent magnet assembly bracket (2), the radial assembly tool support column (3) can be used to support the radial permanent magnet assembly (4), the permanent magnet assembly bracket (2) is provided with a clamping plate (5) that can install the permanent magnet group (7) in the radial permanent magnet assembly (4), and the permanent magnet assembly bracket (2) is provided with a positioning component (8) that can position the permanent magnet group (7), and the positioning component (8) can cooperate with the clamping plate (5). 2. A radial permanent magnet assembly assembly tool according to claim 1, characterized in that: the permanent magnet fixing ring (6) is provided with an inner circle fixing block (30) that can assist in positioning the permanent magnet group (7) or the permanent magnet replacement module group (9), and a radial fastening ring (10) is installed on the outside of the permanent magnet fixing ring (6), and the radial fastening ring (10) is provided with a fastening ring positioning bolt (11) that can ensure the radial installation accuracy of the permanent magnet group (7). 3. A radial permanent magnet assembly tool according to claim 2, characterized in that: the permanent magnet group (7) is formed by splicing permanent magnets (12) arranged in a continuous sequence, and the permanent magnets (12) arranged in a continuous sequence can be spliced into a 360° annular shape and form a circular ring; the permanent magnet replacement module group (9) is formed by splicing permanent magnet replacement modules (13) arranged in a continuous sequence, and the permanent magnet replacement modules (13) arranged in a continuous sequence can be spliced into a 360° annular shape and form a circular ring; the structure of the permanent magnet replacement module group (9) is equal to the structure of the permanent magnet group (7), but the permanent magnet replacement module group (9) is not magnetized; the surface of the permanent magnet fixing ring (6) is circumferentially provided with a hole (14), and the position of the hole (14) is located between two permanent magnets (12) arranged at intervals. 4. A radial permanent magnet assembly tool according to claim 1, characterized in that: the positioning assembly (8) includes an annular movable frame (15) that can move up and down along the permanent magnet assembly bracket (2), the annular movable frame (15) can rotate in a circumferential direction, the annular movable frame (15) is provided with a slot (16) that can be compatible with the permanent magnet (12) or the permanent magnet replacement module (13), the annular movable frame (15) is provided with a positioning ball (17) that can position the movement of the annular movable frame (15), and the positioning ball (17) is compatible with the socket (14). 5. A radial permanent magnet assembly tool according to claim 4, characterized in that: a moving block (18) capable of moving up and down along the permanent magnet assembly bracket (2) is provided on the outside of the annular movable frame (15), and a ring rail (19) is provided on the surface of the annular movable frame (15), and a fixing rod (20) is provided on the surface of the annular rail (19), and an insert block (31) capable of being inserted into the moving block (18) is provided at the end of the fixing rod (20), and a handle (21) capable of driving the annular movable frame (15) to rotate is provided on the annular movable frame (15). 6. A radial permanent magnet assembly assembly tool according to claim 1, characterized in that: a clamping plate driving rod (22) for driving the clamping plate (5) to move up and down is provided on the permanent magnet assembly bracket (2). 7. A radial permanent magnet assembly tooling according to claim 1, characterized in that: a limiting structure (23) for limiting the support of a radial assembly tooling support column (3) can be provided in the permanent magnet assembly bracket (2), the limiting structure (23) includes a base (24) that can be installed on the permanent magnet assembly bracket (2), a column (25) is provided in the base (24) and the column (25) extends upward to contact with an inner circle fixed block (30), a plurality of connecting rods (26) are circumferentially arranged on the surface of the column (25), and a clamping plate (27) that can limit the radial assembly tooling support column (3) is hollowly sleeved on the connecting rod (26). 8. A radial permanent magnet assembly tool according to claim 7, characterized in that: the radial assembly tool support column (3) is composed of multiple plates with arc-shaped cross-sections and gaps are left between adjacent plates, multiple connecting rods (26) are arranged along the gaps in the radial assembly tool support column (3), the cross-sectional shape of the clamping plate (27) is arc-shaped, and the clamping plate (27) is arranged along the inner wall of the radial assembly tool support column (3), and the connecting rod (26) is provided with a locking nut (28) for limiting and locking the clamping plate (27), and the base support (24) can be installed in the permanent magnet assembly bracket (2) by installing bolts, and the cross-sectional shape of the base support (24) is a "┴"-shaped annular circle. 9. A radial permanent magnet assembly assembly tool according to claim 1, characterized in that: after the permanent magnet (12) is installed and the radial assembly tool support column (3) and the limiting structure (23) are removed, an axial positioning fixing ring (29) can be placed above the assembled radial permanent magnet assembly (4). 10. The assembly method of the radial permanent magnet assembly assembly tool according to claim 1, characterized in that: the assembly method comprises: The first step is to install the limiting structure (23) in the permanent magnet assembly bracket (2), and after the installation is completed, install the radial assembly tool support column (3) in the limiting structure (23); Step 2: Afterwards, the radial permanent magnet assembly (4) needs to be installed. However, before installing the radial permanent magnet assembly (4), the permanent magnet assembly (7) needs to be replaced by the permanent magnet replacement module assembly (9) for installation. After the replacement is completed, the permanent magnet replacement module assembly (9) is installed on the permanent magnet fixing ring (6), and then the inner circle fixing block (30) can be installed in the permanent magnet replacement module assembly (9). After that, the radial fastening ring (10) is continued to be installed on the outside of the permanent magnet fixing ring (6). Finally, the fastening ring positioning bolts (11) are circumferentially installed on the outer surface of the radial fastening ring (10); Step 3: After completing step 1 and step 2, the whole structure replaced by the permanent magnet replacement module group (9) can be placed on the radial assembly tool support column (3), and then the slot (16) can be moved to correspond to one of the permanent magnet replacement modules (13) through the provided positioning assembly (8), and then glue is applied to the outer cylindrical surface and two side surfaces of the permanent magnet (12) and placed in the slot (16); Step 4: Then, the clamping plate (5) is pressed downward to move the clamping plate (5) downward, so that the permanent magnet (12) in the slot (16) can be pressed into and replace a corresponding permanent magnet replacement module (13). When the permanent magnet (12) has not yet completely entered, the positioning assembly (8) can be removed, and the permanent magnet (12) can be continued to be pressed downward until the permanent magnet replacement module (13) of this part falls into the limiting structure (23). Then, the fastening ring positioning bolt (11) is tightened to fix the radial position of the permanent magnet. When the subsequent permanent magnet (12) is installed, it is only necessary to install the positioning assembly (8) and rotate the positioning assembly (8) so that the slot (16) in the positioning assembly (8) corresponds to the next permanent magnet replacement module (13). When the permanent magnet is replaced, it is only necessary to repeat the above assembly operation until the 360° overall assembly is completed. Step 5: After the 360° spliced radial permanent magnet assembly (4) is completed, the radial assembly tooling support column (3) and the limiting structure (23) need to be removed, and an axial positioning fixing ring (29) is placed above the radial permanent magnet assembly (4). The clamping plate (5) can be used to press the axial positioning fixing ring (29) downward, and the radial permanent magnet assembly (4) can be axially compressed and limited until the glue is cured, thereby completing the overall assembly of the radial permanent magnet assembly (4).