A radial permanent magnet assembly assembling tool and assembling method

Abstract

This invention relates to the field of permanent magnet technology, specifically to a radial permanent magnet assembly tooling and assembly method, comprising a tooling structure and a radial permanent magnet assembly. The tooling structure is used to assemble the radial permanent magnet assembly, which includes a permanent magnet fixing ring and a permanent magnet group. The permanent magnet group is housed in the permanent magnet fixing ring, and the permanent magnet replacement module group for replacing the permanent magnet group may also be provided in the permanent magnet fixing ring. The tooling structure includes a permanent magnet assembly bracket, which has radial assembly tooling support columns that can be connected to the permanent magnet assembly bracket. The radial assembly tooling support columns can be used to support the radial permanent magnet assembly. The permanent magnet assembly bracket has a clamping plate that can install the permanent magnet group in the radial permanent magnet assembly, and a positioning component that can position the permanent magnet group and cooperate with the clamping plate.

Description

Technical Field

[0001] This invention relates to the field of permanent magnet technology, specifically to a radial permanent magnet assembly tooling and assembly method. Background Technology

[0002] The permanent magnet assembly can be assembled into a 360° ring by using segmented permanent magnets (types of permanent magnets: neodymium iron boron, samarium cobalt, alnico, or ferrite) at a certain angle (radial or oblique magnetization direction) with adhesive (types of adhesives: epoxy adhesive, high-temperature adhesive, etc.). The outer circle is fixed by a fixing ring (using magnetic or non-magnetic materials, such as 1010 or DT4 for magnetic materials and titanium alloy or 304 stainless steel for non-magnetic materials). In specific applications, the spatial magnetic field in the inner circle is mainly used.

[0003] However, when assembling permanent magnet components, since this type of permanent magnet component cannot be magnetized after assembly, it is impossible to use a non-magnetic assembly method. Therefore, assembling permanent magnets with magnets is difficult. Under strong magnetism, there is a very strong repulsive force between permanent magnets. Moreover, the radial and axial positioning accuracy of permanent magnet components is high, so direct bonding is difficult to guarantee accuracy. In addition, without tooling to assist assembly, its assembly efficiency is low and it is easy to break. Therefore, a radial permanent magnet component assembly tooling and assembly method are proposed. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a radial permanent magnet assembly tooling and assembly method, which solves the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a radial permanent magnet assembly fixture, comprising a fixture structure and a radial permanent magnet assembly. The fixture structure is 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 contains the permanent magnet group and can also contain a permanent magnet replacement module group for replacing the permanent magnet group. The fixture structure includes a permanent magnet assembly bracket. The permanent magnet assembly bracket contains a radial assembly fixture support column that can be connected to the permanent magnet assembly bracket. The radial assembly fixture support column can support the radial permanent magnet assembly. The permanent magnet assembly bracket contains a clamping plate that can install the permanent magnet group in the radial permanent magnet assembly. The permanent magnet assembly bracket contains a positioning component that can position the permanent magnet group, and the positioning component can cooperate with the clamping plate.

[0008] Furthermore, the permanent magnet fixing ring is provided with an inner circular fixing block that can assist in positioning the permanent magnet assembly or the permanent magnet replacement module assembly. A radial fastening ring is installed on the outside of the permanent magnet fixing ring, and the radial fastening ring is provided with a fastening ring positioning bolt that can ensure the radial installation accuracy of the permanent magnet assembly.

[0009] Furthermore, the permanent magnet assembly is composed of permanent magnets arranged in a continuous sequence, which can be assembled into a 360° circumferential shape to form a ring. The permanent magnet replacement module assembly is composed of permanent magnet replacement modules arranged in a continuous sequence, which can be assembled into a 360° circumferential shape to form a ring. The structure of the permanent magnet replacement module assembly is the same as that of the permanent magnet assembly, but the permanent magnet replacement module assembly is not magnetized. The surface of the permanent magnet fixing ring is provided with insertion holes in the circumferential direction, and the position of the insertion block is located between two spaced permanent magnets.

[0010] Furthermore, the positioning component includes an annular movable frame capable of vertical displacement along the permanent magnet assembly bracket. The annular movable frame is circumferentially rotatable and contains a slot adapted to a permanent magnet or a permanent magnet replacement module. The annular movable frame also contains a positioning ball that positions the movement of the frame and is adapted to an insertion hole. This positioning component can be disassembled to facilitate subsequent curing operations after the permanent magnet assembly is completed. With this positioning component, when assembling a permanent magnet, the annular movable frame can be mounted on the surface of the radial permanent magnet assembly. The position of the annular movable frame can be rotated using a handle, allowing the slot to align with one of the permanent magnet replacement module groups, thus facilitating the replacement of the permanent magnet with the replacement module. The replaced replacement module can be received by a limiting structure for easy handling and placement by the operator. Multiple rollers can be provided in the slot to prevent the amount of adhesive in the permanent magnet from decreasing during replacement, which could affect subsequent assembly.

[0011] Furthermore, the annular movable frame is provided with a movable block on its exterior that can move up and down along the permanent magnet assembly bracket. The surface of the annular movable frame is provided with an annular rail, and the surface of the annular rail is provided with a fixing rod. The end of the fixing rod is provided with a plug that can be inserted into the movable block. The annular movable frame is provided with a handle that can drive the annular movable frame to rotate.

[0012] Furthermore, the permanent magnet assembly bracket is provided with a clamping plate drive rod for driving the clamping plate to move up and down.

[0013] Furthermore, the permanent magnet assembly bracket may be provided with a limiting structure for limiting and supporting the radial assembly tooling support column. The limiting structure includes a base that can be installed on the permanent magnet assembly bracket. The base has a column that extends upward to contact the inner circle fixing block. The surface of the column is provided with a plurality of connecting rods. The connecting rods are loosely fitted with clamping plates that can limit the radial assembly tooling support column.

[0014] Furthermore, the radial assembly tooling support column is composed of multiple plates with arc-shaped cross-sections and gaps between adjacent plates. Multiple connecting rods are arranged along the gaps in the radial assembly tooling support column. The clamping plate has an arc-shaped cross-section and is arranged along the inner wall of the radial assembly tooling support column. The connecting rods are equipped with locking nuts for limiting and locking the clamping plate. The base can be installed in the permanent magnet assembly bracket by mounting bolts. The base has a cross-sectional shape resembling a "┴" annular circle.

[0015] Furthermore, after the permanent magnets are installed and the radial assembly tooling support column and limiting structure are removed, an axial positioning fixing ring can be placed above the assembled radial permanent magnet assembly.

[0016] An assembly method for a radial permanent magnet assembly fixture, characterized in that the assembly method includes:

[0017] Step 1: By installing the limiting structure in the permanent magnet assembly bracket, after installation, the radial assembly tooling support column can be installed in the limiting structure;

[0018] Step 2: Next, 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. After the replacement is completed, the permanent magnet replacement module assembly is installed behind the permanent magnet fixing ring. Then, the inner circle fixing block is installed in the permanent magnet replacement module assembly. After that, the radial fastening ring is installed on the outside of the permanent magnet fixing ring. Finally, the fastening ring positioning bolt is installed circumferentially on the outer surface of the radial fastening ring.

[0019] 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. Then, the slot can be moved to correspond to one of the permanent magnet replacement modules through the set positioning components. After that, apply glue to the outer circular surface and two sides of the permanent magnet and place it in the slot.

[0020] Step 4: Next, press down the clamping plate to move it downwards, thereby pressing the permanent magnet in the slot into place and replacing the corresponding permanent magnet replacement module. Before the permanent magnet is fully inserted, the positioning component can be removed to continue pressing the permanent magnet downwards until the permanent magnet replacement module falls into the limiting structure. Then tighten the fastening ring positioning bolts to fix the radial position of the permanent magnet. When installing subsequent permanent magnets, simply install the positioning component and rotate it so that the slot in the positioning component corresponds to the next permanent magnet replacement module. When replacing permanent magnets, simply repeat the above assembly operation until the 360° overall assembly is completed.

[0021] Step 5: After completing the 360° splicing of the radial permanent magnet assembly, the radial assembly tooling support column and limiting structure need to be removed. An axial positioning ring is then placed above the radial permanent magnet assembly. The axial positioning ring can be pressed down with a clamping plate to axially press and limit the radial permanent magnet assembly until the glue is cured, thus completing the overall assembly of the radial permanent magnet assembly.

[0022] Compared with existing technologies, this new radial permanent magnet assembly tooling and assembly method not only ensures the radial and axial accuracy of the installed radial permanent magnet, but also facilitates the assembly of the radial permanent magnet to be magnetized, thereby improving its assembly efficiency. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention;

[0024] Figure 2 For the present invention Figure 1 A partial sectional view of the structure;

[0025] Figure 3 For the present invention Figure 2 A structural diagram from another perspective;

[0026] Figure 4 For the present invention Figure 3 A partial structural diagram;

[0027] Figure 5 This is a schematic diagram of the clamping plate clamping the axial positioning and fixing ring in the tooling structure of the present invention;

[0028] Figure 6 For the present invention Figure 5 A front view structural diagram;

[0029] Figure 7 This is a schematic diagram of the radial permanent magnet assembly of the present invention;

[0030] Figure 8 For the present invention Figure 7 A top-view structural diagram;

[0031] Figure 9 This is a schematic diagram of the permanent magnet replacement module group and radial fastening ring structure in the radial permanent magnet assembly of the present invention.

[0032] Figure 10 For the present invention Figure 9 A top-view structural diagram;

[0033] In the diagram: 1. Tooling structure; 2. Permanent magnet assembly bracket; 3. Radial assembly tooling support column; 4. Radial permanent magnet assembly; 5. Pressure plate; 6. Permanent magnet retaining ring; 7. Permanent magnet assembly; 8. Positioning assembly; 9. Permanent magnet replacement module assembly; 10. Radial fastening ring; 11. Fastening ring positioning bolt; 12. Permanent magnet; 13. Permanent magnet replacement module; 14. Insertion hole; 15. Circular moving frame; 16. Slot; 17. Positioning ball; 18. Moving block; 19. Circular rail; 20. Fixing rod; 21. Handle; 22. Pressure plate drive rod; 23. Limiting structure; 24. Base support; 25. Column; 26. Connecting rod; 27. Clamping plate; 28. Locking nut; 29. ​​Axial positioning fixing ring; 30. Inner circle fixing block; 31. Insertion block. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0035] Please see Figures 1 to 10This invention provides a technical solution: a radial permanent magnet assembly assembly fixture, including a fixture structure 1 and a radial permanent magnet assembly 4. The fixture 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 contains the permanent magnet group 7 and an inner circular fixing block 30 that can assist in positioning the permanent magnet group 7 or the permanent magnet replacement module group 9. A radial fastening ring 10 is installed on the outside of the permanent magnet fixing ring 6. The radial fastening ring 10 contains a component that can ensure the permanent magnet group 7... The radial installation accuracy fastening ring positioning bolt 11, the permanent magnet group 7 is spliced ​​from permanent magnets 12 arranged in a continuous sequence, the permanent magnets 12 arranged in a continuous sequence can be spliced ​​into a 360° circumferential shape and form a ring, the permanent magnet replacement module group 9 is spliced ​​from permanent magnet replacement modules 13 arranged in a continuous sequence, the permanent magnet replacement modules 13 arranged in a continuous sequence can be spliced ​​into a 360° circumferential shape and form a ring, the structure of the permanent magnet replacement module group 9 is the same as the structure of the permanent magnet group 7, but the permanent magnet replacement module group 9 is not magnetized;The permanent magnet fixing ring 6 has a circumferentially oriented insertion hole 14 located between two spaced permanent magnets 12. The permanent magnet fixing ring 6 may also include a permanent magnet replacement module group 9 for replacing the permanent magnet group 7. The tooling structure 1 includes a permanent magnet assembly bracket 2. The permanent magnet assembly bracket 2 has a radial assembly tooling support column 3 that can be connected to it. The permanent magnet assembly bracket 2 may also have a limiting structure 23 for limiting and supporting the radial assembly tooling support column 3. The limiting structure 23 includes a base 24 that can be mounted on the permanent magnet assembly bracket 2. The base 24 has a column 25 that extends upward to contact the inner circular fixing block 30. Multiple connecting rods 26 are circumferentially arranged on the surface of column 25. Clamping plates 27, which limit the movement of the radial assembly tooling support column 3, are loosely fitted onto the connecting rods 26. The radial assembly tooling support column 3 is composed of multiple plates with arc-shaped cross-sections and gaps between adjacent plates. The multiple connecting rods 26 are arranged along the gaps in the radial assembly tooling support column 3. The clamping plates 27 have arc-shaped cross-sections and are arranged along the inner wall of the radial assembly tooling support column 3. Locking nuts 28 are provided on the connecting rods 26 to limit and lock the clamping plates 27. The base 24 can be installed in the permanent magnet assembly bracket 2 using mounting bolts. The base 24 has a circular cross-section resembling a "┴" shape. The tooling 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 for installing the permanent magnet assembly 7 in the radial permanent magnet assembly 4. The permanent magnet assembly bracket 2 is provided with a clamping plate drive rod 22 for driving the clamping plate 5 to move up and down. The permanent magnet assembly bracket 2 is provided with a positioning component 8 for positioning the permanent magnet assembly 7, and the positioning component 8 can cooperate with the clamping plate 5. The positioning component 8 includes an annular moving frame 15 that can move up and down along the permanent magnet assembly bracket 2. The annular moving frame 15 can rotate circumferentially. The annular moving frame 15 is provided with a slot 16 that can be adapted to the permanent magnet 12 or the permanent magnet replacement module 13. The ring-shaped moving frame 15 is equipped with a positioning ball 17 that positions the movement of the ring-shaped moving frame 15 and is adapted to the insertion hole 14. The ring-shaped moving frame 15 has a moving block 18 on its exterior that can move vertically along the permanent magnet assembly bracket 2. A ring-shaped rail 19 is provided on the surface of the ring-shaped moving frame 15, and a fixing rod 20 is provided on the surface of the ring-shaped rail 19. The end of the fixing rod 20 has an insertion block 31 that can be inserted into the moving block 18. The ring-shaped moving frame 15 has a handle 21 that can rotate the ring-shaped moving frame 15. After the permanent magnet 12 is installed and the radial assembly tooling 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.

[0036] Please see Figures 1 to 10This invention provides a technical solution: an assembly method for a radial permanent magnet assembly fixture, the assembly method comprising:

[0037] Step 1: By installing the limiting structure 23 in the permanent magnet assembly bracket 2, after installation, the radial assembly tooling support column 3 can be installed in the limiting structure 23;

[0038] Step 2: Next, 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 group 9. After the replacement is completed, the permanent magnet replacement module group 9 is installed after the permanent magnet fixing ring 6. Then, the inner circle fixing block 30 is installed in the permanent magnet replacement module group 9. After that, the radial fastening ring 10 is installed on the outside of the permanent magnet fixing ring 6. Finally, the fastening ring positioning bolt 11 is installed circumferentially on the outer surface of the radial fastening ring 10.

[0039] Step 3: After completing Step 1 and Step 2, the overall structure replaced by the permanent magnet replacement module group 9 can be placed on the radial assembly tooling support column 3. Then, the slot 16 can be moved to correspond to one of the permanent magnet replacement modules 13 through the positioning component 8. After that, apply glue to the outer circular surface and two sides of the permanent magnet 12 and place it in the slot 16.

[0040] Step 4: Then, press down the clamping plate 5 to move it downwards, thereby pressing the permanent magnet 12 in the slot 16 into place and replacing the corresponding permanent magnet replacement module 13. Before the permanent magnet 12 is fully inserted, the positioning component 8 can be removed to continue pressing the permanent magnet 12 downwards until the permanent magnet replacement module 13 falls into the limiting structure 23. Then tighten the fastening ring positioning bolt 11 to fix the radial position of the permanent magnet. When installing the subsequent permanent magnet 12, simply install the positioning component 8 and rotate it so that the slot 16 in the positioning component 8 corresponds to the next permanent magnet replacement module 13. When replacing the permanent magnet, simply repeat the above assembly operation until the 360° overall assembly is completed.

[0041] 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 the axial positioning fixing ring 29 on top of the radial permanent magnet assembly 4. The clamping plate 5 can be used to press the axial positioning fixing ring 29 downward, thereby axially pressing and limiting the radial permanent magnet assembly 4 until the glue is cured, thus completing the overall assembly of the radial permanent magnet assembly 4.

[0042] All electrical components mentioned in this article are connected to an external main controller and 380V commercial power supply, and the main controller can be a conventional known device such as a computer that can control it.

[0043] In the description of this specification, the terms "connection", "installation", "fixing", "setting", etc. are interpreted broadly. 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. In such cases, those skilled in the art can understand the specific meaning of the above terms in this invention or invention according to the specific circumstances.

[0044] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A radial permanent magnet assembly assembly fixture, characterized in that: The assembly includes a tooling structure (1) and a radial permanent magnet assembly (4). The tooling structure (1) is 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) contains the permanent magnet group (7). The permanent magnet fixing ring (6) can also contain a permanent magnet replacement module group (9) for replacing the permanent magnet group (7). The tooling structure (1) includes a permanent magnet assembly assembly bracket (2). The bracket (2) is provided with a radial assembly tooling support column (3) that can be connected to the permanent magnet assembly bracket (2). The radial assembly tooling 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 assembly (7) in the radial permanent magnet assembly (4). The permanent magnet assembly bracket (2) is provided with a positioning component (8) that can position the permanent magnet assembly (7) and the positioning component (8) can cooperate with the clamping plate (5).

2. The assembly fixture for a radial permanent magnet assembly 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 assembly (7) or the permanent magnet replacement module assembly (9). A radial fastening ring (10) is installed on the outside of the permanent magnet fixing ring (6). 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 assembly (7).

3. The assembly fixture for a radial permanent magnet assembly according to claim 2, characterized in that: The permanent magnet group (7) is composed of permanent magnets (12) arranged in a continuous sequence. The permanent magnets (12) arranged in a continuous sequence can be spliced ​​into a 360° circumferential shape and form a ring. The permanent magnet replacement module group (9) is composed of permanent magnet replacement modules (13) arranged in a continuous sequence. The permanent magnet replacement modules (13) arranged in a continuous sequence can be spliced ​​into a 360° circumferential shape and form a ring. The structure of the permanent magnet replacement module group (9) is the same as that 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 provided with a circumferential insertion hole (14). The position of the insertion hole (14) is located between two spaced permanent magnets (12).

4. The assembly fixture for a radial permanent magnet assembly according to claim 1, characterized in that: The positioning component (8) includes an annular moving frame (15) that can move up and down along the permanent magnet assembly bracket (2). The annular moving frame (15) can rotate circumferentially. The annular moving frame (15) is provided with a slot (16) that can be adapted to 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 adapted to the socket (14).

5. The assembly fixture for a radial permanent magnet assembly according to claim 4, characterized in that: The annular moving frame (15) is provided with a moving block (18) on its outside that can move up and down along the permanent magnet assembly bracket (2). The annular moving frame (15) is provided with an annular rail (19). The surface of the annular rail (19) is provided with a fixing rod (20). The end of the fixing rod (20) is provided with a plug (31) that can be inserted into the moving block (18). The annular moving frame (15) is provided with a handle (21) that can drive the annular moving frame (15) to rotate.

6. The assembly fixture for a radial permanent magnet assembly according to claim 1, characterized in that: The permanent magnet assembly bracket (2) is provided with a clamping plate drive rod (22) for driving the clamping plate (5) to move up and down.

7. The assembly fixture for a radial permanent magnet assembly according to claim 1, characterized in that: The permanent magnet assembly bracket (2) may be provided with a limiting structure (23) for limiting and supporting the radial assembly tooling support column (3). The limiting structure (23) includes a base (24) that can be installed on the permanent magnet assembly bracket (2). The base (24) is provided with a column (25) that extends upward to contact the inner circle fixing block (30). The surface of the column (25) is provided with a plurality of connecting rods (26) circumferentially. The connecting rods (26) are loosely fitted with clamping plates (27) that can limit the radial assembly tooling support column (3).

8. The assembly fixture for a radial permanent magnet assembly according to claim 7, characterized in that: The radial assembly tooling support column (3) is composed of multiple plates with arc-shaped cross sections and gaps between adjacent plates. Multiple connecting rods (26) are arranged along the gaps in the radial assembly tooling support column (3). The clamping plate (27) has an arc-shaped cross section and is arranged along the inner wall of the radial assembly tooling support column (3). The connecting rod (26) is provided with a locking nut (28) for limiting and locking the clamping plate (27). The base (24) can be installed in the permanent magnet assembly bracket (2) by mounting bolts. The cross section of the base (24) is a ring-shaped structure resembling a "┴".

9. The assembly fixture for a radial permanent magnet assembly according to claim 1, characterized in that: After the permanent magnet (12) is installed and the radial assembly tooling 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).

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