Motor rotor pressing and fastening tool and pressing device

Abstract

The utility model belongs to the technical field of motor rotor manufacturing, and discloses a motor rotor pressing and fastening tool and a pressing device. The motor rotor pressing and fastening tool comprises a cover plate, a bottom plate and a locking assembly, the cover plate and the bottom plate are oppositely arranged, and a containing space used for containing a rotor is formed between the cover plate and the bottom plate; the locking assembly comprises a locking rod, the locking rod is arranged on one of the cover plate and the bottom plate in a penetrating mode in a circumferential rotating mode, a lock hole for one end of the locking rod to be inserted is formed in the other one of the cover plate and the bottom plate, and the locking rod can rotate in the lock hole in the circumferential direction so as to be locked with or unlocked from the bottom plate. The locking assembly is simple in structure, the cover plate and the bottom plate can be rapidly mounted and dismounted, and operation is convenient and rapid.

Description

Technical Field

[0001] The utility model relates to the technical field of motor rotor manufacturing, in particular to a pressing and fastening tooling for a motor rotor and a pressing device. Background Art

[0002] An axial magnetic field motor, also known as a disc motor, has the advantages of small axial dimension, high torque density, high power density and high efficiency, and is widely used in fields such as electric vehicles, general industry and household appliances. From the current structure of the disc motor rotor, the magnet is a single-piece design, and the single-piece magnets are arranged according to the NS poles and are bonded to the rotor disc with glue. During the manufacturing process of the motor rotor, glue needs to be applied to the rotor disc first, and then each magnet is pressed tightly on the rotor disc through a pressing and fastening tooling, and then placed in a curing furnace for glue curing. The existing pressing and fastening tooling realizes the detachable connection between the cover plate and the bottom plate through a locking component, but the existing locking component has a relatively complex structure. Therefore, when installing and disassembling the cover plate and the bottom plate, the operation is cumbersome, time-consuming and laborious, and the efficiency is relatively low.

[0003] Therefore, there is an urgent need to provide a pressing and fastening tooling for a motor rotor and a pressing device to solve the above problems. Summary of the Utility Model

[0004] One object of the utility model is to provide a pressing and fastening tooling for a motor rotor, the locking component has a simple structure, and can realize the rapid installation and disassembly of the cover plate and the bottom plate, and the operation is convenient and fast.

[0005] Another object of the utility model is to provide a pressing device, which can drive the cover plate to move through a pressing mechanism, can realize the automatic pressing of the cover plate, improves the degree of automation, and saves labor costs.

[0006] To achieve the above object, the utility model adopts the following technical solutions:

[0007] The pressing and fastening tooling for a motor rotor includes:

[0008] A cover plate and a bottom plate, which are arranged oppositely, and an accommodating space for placing the rotor is formed between the cover plate and the bottom plate;

[0009] A locking component, including a locking rod, the locking rod is rotatably inserted through one of the cover plate and the bottom plate in the circumferential direction, and a lock hole for inserting one end of the locking rod is provided on the other of the cover plate and the bottom plate, and the locking rod can rotate circumferentially in the lock hole to lock or unlock with the bottom plate.

[0010] As an alternative solution, the locking rod includes a rod portion and a locking pin. The rod portion passes through the cover plate. The locking pin is connected to one end of the rod portion close to the bottom plate and penetrates the rod portion radially. Two free ends of the locking pin protrude from the circumferential side of the rod portion respectively. The locking hole is provided on the bottom plate. The rod portion can rotate circumferentially within the locking hole so that the locking pin can switch between a position facing the locking hole and a position avoiding the locking hole.

[0011] By providing the above-mentioned locking rod, rapid installation and disassembly of the cover plate and the bottom plate can be achieved, and the operation is convenient and fast.

[0012] As an alternative solution, the locking assembly further includes a limit guide sleeve. The limit guide sleeve passes through the cover plate. One side of the limit guide sleeve away from the bottom plate abuts against the surface of the cover plate. The rod portion passes through the limit guide sleeve and can rotate circumferentially within the limit guide sleeve.

[0013] By the rotational cooperation between the limit guide sleeve and the locking rod, it is avoided that the cover plate is worn and deformed due to the long-term rotational cooperation between the locking rod and the cover plate.

[0014] As an alternative solution, a rotating handle is connected to one end of the locking rod away from the locking hole. By rotating the rotating handle, the operator can drive the locking rod to rotate, thereby realizing the locking and unlocking of the locking rod, and the operation is convenient.

[0015] As an alternative solution, two oppositely arranged limit protrusions protrude from one end of the limit guide sleeve away from the cover plate. A limit groove is formed between the two limit protrusions. The locking assembly further includes a limit pin. The limit pin penetrates the rod portion radially. The free end of the limit pin protrudes from the circumferential side of the rod portion. The free end of the limit pin is located within the limit groove and can respectively abut against the two limit protrusions.

[0016] When the limit pin respectively abuts against the two limit protrusions, it prompts the operator that the locking pins respectively reach two rotational limit positions, and the two limit positions are respectively the unlocking position and the locking position of the locking rod.

[0017] As an alternative solution, the rotating handle abuts against the end face of the limit guide sleeve, and the limit pin abuts against the bottom of the limit groove. The cooperation between the limit pin and the bottom of the limit groove can limit the upward axial movement of the locking rod, and the abutting cooperation between the rotating handle and the limit guide sleeve can limit the downward axial movement of the locking rod, thereby restricting the axial movement of the locking rod.

[0018] As an optional solution, the locking assembly further includes a gasket, and a receiving groove connected to the lock hole is provided on a side of the bottom plate away from the cover plate, the gasket is arranged in the receiving groove, and the locking pin can abut against the gasket. By providing the gasket, it is possible to prevent the locking pin from contacting the bottom plate for a long time, thereby preventing the bottom plate from being worn and deformed.

[0019] As an optional solution, multiple locking assemblies are provided and the multiple locking assemblies are evenly arranged. This arrangement can ensure the stability of the connection between the cover plate and the bottom plate, and the cover plate is evenly stressed and will not deform. At the same time, during the rotation locking process, the axial force of each magnetic steel can be evenly stressed.

[0020] The pressing device comprises a pressing mechanism and the above-mentioned motor rotor pressing and curing tooling, wherein the pressing mechanism is used to drive the cover plate to move toward the bottom plate to press the rotor.

[0021] As an optional solution, a rotating cylinder is provided at the output end of the pressing mechanism, and a rotating handle is connected to the end of the locking rod away from the locking hole. The output end of the rotating cylinder is detachably connected to the rotating handle, and the rotating cylinder can drive the rotating handle to drive the locking rod to rotate.

[0022] This arrangement can achieve automatic locking of the locking assembly, improve the degree of automation, and save labor costs.

[0023] Beneficial effects of the utility model:

[0024] The utility model provides a motor rotor pressing and curing tool. When in use, the assembled rotor is first placed in the accommodating space between the cover plate and the bottom plate, and then the cover plate and the bottom plate are locked. In the process of installing the cover plate, the locking rod first passes through the locking hole. When the cover plate reaches the preset position, the locking rod can be limited in the locking hole by rotating the locking rod, so as to achieve the locking of the locking rod and the bottom plate, thereby achieving the fixed connection between the cover plate and the bottom plate; when removing the cover plate, only the locking rod needs to be rotated in the opposite direction to make the locking rod disengage from the locking hole, so as to achieve the removal of the cover plate and the bottom plate. The locking assembly has a simple structure, can realize the rapid installation and removal of the cover plate and the bottom plate, and is convenient and quick to operate.

[0025] The utility model also provides a clamping device, including a pressing mechanism and the motor rotor clamping and curing tooling. The pressing mechanism drives the cover plate to move, so that automatic clamping of the cover plate can be achieved, the degree of automation is improved, and labor costs are saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The utility model provides an explosion-proof device for compacting and solidifying the motor rotor. Figure 1 ;

[0027] Figure 2It is a cross-sectional view of the motor rotor pressing and fastening tooling provided by the present utility model;

[0028] Figure 3 is an explosion diagram of the motor rotor pressing and fastening tooling provided by the present utility model; Figure 2 ;

[0029] Figure 4 is a structural schematic diagram of the locking assembly provided by the present utility model.

[0030] In the figure:

[0031] 100, rotor; 101, rotor disk; 1011, central hole; 1012, positioning hole; 102, magnet;

[0032] 10, cover plate; 11, steel plate; 12, aluminum plate; 13, stainless steel thin plate; 14, equal-height screw; 15, centering ring; 16, positioning pin;

[0033] 20, bottom plate; 21, limiting groove; 22, locking hole; 221, round hole; 222, strip hole; 23, accommodating groove;

[0034] 30, elastic pressing assembly; 31, pressing member; 311, pressing block; 312, limiting portion; 313, limiting boss; 32, elastic member;

[0035] 40, locking assembly; 41, locking rod; 411, rod portion; 412, locking pin; 42, rotating handle; 43, limiting guide sleeve; 431, limiting protrusion; 432, limiting groove; 44, limiting pin; 45, gasket;

[0036] 50, accommodating space. Detailed implementation manners

[0037] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. Additionally, it should be noted that for the sake of description, only the parts related to the present utility model rather than all the structures are shown in the drawings.

[0038] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0039] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0040] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationships shown in the drawings. It is only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0041] This embodiment provides a motor rotor pressing and fastening tooling for pressing the rotor 100. Among them, the rotor 100 is the rotor of an axial magnetic field motor, which includes a rotor disk 101 and a plurality of magnetic steel 102 embedded on one side of the rotor disk 101. The plurality of magnetic steel 102 are arranged according to the NS poles and are bonded to the rotor disk 101 by glue. During the manufacturing process of the rotor 100, it is necessary to first apply glue on the rotor disk 101, then press each magnetic steel 102 onto the rotor disk 101 through this motor rotor pressing and fastening tooling, and then place it in a curing furnace for curing the glue.

[0042] Specifically, as Figure 1 and Figure 2 shown, the motor rotor pressing and fastening tooling includes a cover plate 10, a bottom plate 20 and a locking assembly 40. The cover plate 10 and the bottom plate 20 are arranged oppositely, and a receiving space 50 for placing the rotor 100 is formed between the cover plate 10 and the bottom plate 20. The cover plate 10 and the bottom plate 20 are locked by the locking assembly 40 to press the rotor 100 in the receiving space 50. The locking assembly 40 includes a locking rod 41. The locking rod 41 is rotatably inserted through the cover plate 10 in the circumferential direction. A locking hole 22 for inserting one end of the locking rod 41 is provided on the bottom plate 20. The locking rod 41 can rotate circumferentially in the locking hole 22 to lock or unlock with the bottom plate 20.

[0043] In use, the assembled rotor 100 is placed in the accommodation space 50 between the cover plate 10 and the bottom plate 20, and then the cover plate 10 and the bottom plate 20 are locked. During the process of pressing down the cover plate 10, the locking rod 41 on the cover plate 10 passes through the locking hole 22. When the cover plate 10 reaches the preset position, by rotating the locking rod 41, it can be fixed in the locking hole 22, realizing the locking of the locking rod 41 and the bottom plate 20, thereby realizing the fixed connection between the cover plate 10 and the bottom plate 20 to press the rotor 100; when disassembling the cover plate 10, only need to rotate the locking rod 41 in the reverse direction, then the locking rod 41 can be disengaged from the locking hole 22, realizing the disassembly of the cover plate 10 and the bottom plate 20. The locking assembly 40 has a simple structure, can realize the quick installation and disassembly of the cover plate 10 and the bottom plate 20, and is convenient and fast to operate.

[0044] In another alternative implementation, the locking rod 41 can also be arranged on the bottom plate 20, and the locking hole 22 can be arranged on the cover plate 10, and the above effects can also be achieved.

[0045] Specifically, as Figures 1 to 4 shown, the locking rod 41 includes a rod portion 411 and a locking pin 412. The rod portion 411 passes through the cover plate 10, and the rod portion 411 is axially fixed on the cover plate 10 and can rotate circumferentially relative to the cover plate 10. The locking pin 412 is connected to one end of the rod portion 411 close to the bottom plate 20 and penetrates the rod portion 411 in the radial direction. The two free ends of the locking pin 412 respectively protrude from the circumferential side of the rod portion 411. The rod portion 411 can rotate circumferentially in the locking hole 22 to switch the locking pin 412 between the position facing the locking hole 22 and the position avoiding the locking hole 22. Among them, both the rod portion 411 and the locking pin 412 can be selected as cylindrical rods. The two free ends of the locking pin 412 respectively protrude from the circumferential side of the rod portion 411, so that the locking pin 412 and the rod portion 411 are constructed into a T-shaped structure. This form of locking rod 41 has a simple structure and can be well limited and matched with the locking hole 22 to avoid coming out of the locking hole 22.

[0046] Among them, the end face shape of the locking hole 22 is adapted to that of the locking rod 41. Specifically, as Figure 1As shown, the keyhole 22 includes a circular hole 221 and strip-shaped holes 222 symmetrically connected to both sides of the circular hole 221. The circular hole 221 is adapted to the rod portion 411, and the two strip-shaped holes 222 are adapted to the locking pins 412. When installing the cover plate 10, first ensure that the rod portion 411 is aligned with the circular hole 221, and the locking pins 412 are aligned with the strip-shaped holes 222. Then press down the cover plate 10 so that the locking rod 41 can extend into the keyhole 22 of the bottom plate 20, and the locking pins 412 pass through to the other side of the bottom plate 20. Then rotate the rod portion 411 axially so that the locking pins 412 are rotated to a position avoiding the strip-shaped holes 222 and axially limited on one side of the bottom plate 20. At this time, the cover plate 10 is locked to the bottom plate 20 through the locking rod 41. When it is necessary to remove the cover plate 10, just rotate the rod portion 411 in the reverse direction so that the locking pins 412 are aligned with the strip-shaped holes 222, and the cover plate 10 and the bottom plate 20 can be unlocked. The structure of the locking rod 41 is simple and stable, the operation is convenient, which is conducive to the rapid assembly and disassembly of the cover plate 10 and the bottom plate 20. At the same time, during the rotation locking process, it can ensure that the axial force on the magnet 102 is uniform and not affected by the radial force.

[0047] As Figure 1 shown, a rotating handle 42 is connected to one end of the locking rod 41 away from the bottom plate 20. By rotating the rotating handle 42, the operator can drive the locking rod 41 to rotate, thereby realizing the locking and unlocking of the locking rod 41, and the operation is convenient. The rotating handle 42 and the locking rod 41 can be fixedly connected by interference fit, threaded connection, snap connection, etc., and no specific limitation is made here.

[0048] In an optional embodiment, as Figure 1 and Figure 2 shown, the locking assembly 40 further includes a limiting guide sleeve 43. The limiting guide sleeve 43 is inserted through the cover plate 10. One side of the limiting guide sleeve 43 away from the bottom plate 20 abuts against the surface of the cover plate 10 and is fixedly connected to the cover plate 10 by screws. The locking rod 41 passes through the limiting guide sleeve 43 and can rotate circumferentially within the limiting guide sleeve 43. The strength of the limiting guide sleeve 43 is higher than that of the cover plate 10, and it rotates in cooperation with the locking rod 41 to prevent the cover plate 10 from being worn and deformed due to the long-term rotation cooperation between the locking rod 41 and the cover plate 10.

[0049] In an optional embodiment, as Figure 4As shown, at one end of the limit guide sleeve 43 away from the rotating handle 42, two oppositely arranged limit protrusions 431 protrude. A limit groove 432 is formed between the two limit protrusions 431. The locking assembly 40 further includes a limit pin 44. The limit pin 44 is connected to the rod portion 411 and penetrates the rod portion 411 in the radial direction. The two free ends of the limit pin 44 protrude from the circumferential side of the rod portion 411 respectively. Each limit pin 44 is located in the corresponding limit groove 432 and can be respectively abutted against the two limit protrusions 431. By rotating the locking rod 41 clockwise and counterclockwise along the axial direction, the limit pin 44 can be driven to rotate in the limit groove 432. When the limit pin 44 is respectively abutted against the two limit protrusions 431, it indicates that the locking pins 412 have respectively reached two rotation limit positions. The two limit positions are respectively the position where the locking pin 412 is aligned with the strip hole 222 and the position perpendicular to the strip hole 222, that is, the unlocking position and the locking position of the locking rod 41.

[0050] In an alternative embodiment, as Figure 2 and Figure 4 shown, the lower surface of the rotating handle 42 abuts against the upper surface of the limit guide sleeve 43, and the limit pin 44 abuts against the bottom of the limit groove 432. The abutting fit between the limit pin 44 and the bottom of the limit groove 432 can limit the upward movement of the locking rod 41 in the axial direction, and the abutting fit between the rotating handle 42 and the limit guide sleeve 43 can limit the downward movement of the locking rod 41 in the axial direction, thereby restricting the axial movement of the locking rod 41.

[0051] In an alternative embodiment, as Figure 2 and Figure 3 shown, the locking assembly 40 further includes a gasket 45. A receiving groove 23 is formed on the side of the bottom plate 20 away from the cover plate 10. The receiving groove 23 is communicated with the lock hole 22. The gasket 45 is arranged in the receiving groove 23 and fixed to the bottom of the receiving groove 23 by screws. A hole position for the locking rod 41 to pass through is formed on the gasket 45, and the shape of the hole position is the same as that of the lock hole 22. When the locking pin 412 is located at the position avoiding the strip hole 222, the locking pin 412 abuts against the gasket 45. The gasket 45 is preferably a steel gasket, and its strength is greater than that of the bottom plate 20, avoiding the bottom plate 20 being worn and deformed due to the long-term contact between the locking pin 412 and the bottom plate 20.

[0052] In this embodiment, as Figure 1As shown, five locking components 40 are provided. One of the locking components 40 is arranged at the center position of the cover plate 10, passes through the rotor disk 101 and then cooperates with the lock hole 22 at the center of the bottom plate 20. The remaining four locking components 40 are respectively arranged at the four corners of the cover plate 10 and respectively cooperate with the lock holes 22 at the four corners of the bottom plate 20. This setting can avoid the increase in cost caused by too many locking components 40, and can ensure the stability of the connection between the cover plate 10 and the bottom plate 20. The cover plate 10 is evenly stressed and will not deform. At the same time, during the rotation and locking process, the axial stress of each magnet 102 can be ensured to be uniform. In other embodiments, the number of the locking components 40 can also be set to four, five or more, and can be flexibly set according to actual needs, and no specific limitation is made here.

[0053] As Figure 1 and Figure 2 shown, the motor rotor pressing and solidifying tooling further includes a plurality of elastic pressing components 30. The plurality of elastic pressing components 30 are evenly distributed along the circumferential direction of the rotor 100 and are arranged on the bottom plate 20. One end of the plurality of elastic pressing components 30 extends into the accommodation space 50 and simultaneously elastically presses on the rotor disk 101, and the cover plate 10 presses on the plurality of magnets 102.

[0054] During use, place the assembled rotor 100 on the plurality of elastic pressing components 30 on the bottom plate 20 in the manner that the magnet 102 faces the cover plate 10, and then connect the cover plate 10 and the bottom plate 20 through the above-mentioned locking components 40, so that the cover plate 10 and the plurality of elastic pressing components 30 cooperate to press the rotor 100 tightly and wait for solidification. Among them, the rotor disk 101 is pressed tightly by the plurality of evenly distributed elastic pressing components 30, and the plurality of magnets 102 are pressed tightly by the cover plate 10. The elastic pressing component 30 and the rotor disk 101 are elastically pressed, which can ensure that each elastic pressing component 30 can contact and press on the rotor disk 101. The plurality of elastic pressing components 30 are evenly distributed along the circumferential direction of the rotor 100, which can try to ensure that the rotor disk 101 is evenly stressed. The rotor disk 101 applies pressure to each magnet 102, so that each magnet 102 can fully contact the cover plate 10, and further makes each magnet 102 evenly stressed, improves the height consistency of each magnet 102, and is beneficial to improving the product quality.

[0055] In this embodiment, as Figure 1 shown, eight elastic pressing components 30 are provided. The eight elastic pressing components 30 are evenly arranged along the circumferential direction of the rotor disk 101 and can simultaneously press on the rotor disk 101, so as to ensure that the rotor disk 101 is evenly stressed. In other embodiments, the number of the elastic pressing components 30 can also be set to other numbers, and can be flexibly set according to the size of the rotor disk 101 and the number of the magnets 102, and no specific limitation is made here.

[0056] In this embodiment, as Figure 1 andFigure 2 As shown, the elastic pressing component 30 includes a pressing member 31 and an elastic member 32. The pressing member 31 is movably inserted through the bottom plate 20. One end of the pressing member 31 extends into the accommodating space 50 and can be in contact with the rotor disc 101, and the other end can be in limit cooperation with the bottom surface of the bottom plate 20. The elastic member 32 can be selected as a rectangular spring, which has good load-bearing capacity, high stability and durability. A limit groove 21 is formed on the bottom plate 20. The elastic member 32 is accommodated in the limit groove 21 and sleeved outside the pressing member 31. One end of the elastic member 32 abuts against the pressing member 31, and the other end abuts against the bottom of the limit groove 21. Refer to Figure 2 , when installing the cover plate 10, first press down the cover plate 10. The cover plate 10 applies pressure to the magnet 102 downward, and at the same time, the rotor disc 101 applies pressure to the pressing member 31 downward. The pressing member 31 moves downward and compresses the elastic member 32 until the cover plate 10 is installed in place. The elastic force of the elastic member 32 acting on the pressing member 31 in the reverse direction is the pressing force applied by the pressing member 31 on the rotor disc 101. Through the above settings, under the action of the elastic member 32, it can be ensured that each pressing member 31 can be in contact with and press the rotor disc 101, ensuring uniform pressure on the rotor disc 101, and further ensuring uniform pressure on each magnet 102.

[0057] It is worth noting that during the process of pressing down the cover plate 10 under external pressure, when the rectangular spring is completely compressed, the locking rod 41 can be smoothly locked into the locking hole 22. When the external pressure is removed, the rectangular spring stretches a certain length and tightens the locking rod 41 to keep the magnet 102 under pressure.

[0058] Specifically, as Figure 2 shown, the pressing member 31 includes a pressing block 311 and a limiting portion 312 which are connected. The pressing block 311 extends into the accommodating space 50 and can be in contact with the rotor disc 101. The outer diameter of the pressing block 311 is larger than that of the limiting portion 312. The elastic member 32 is sleeved on the limiting portion 312 and one end of it abuts against the pressing block 311. That is to say, the pressing block 311 and the bottom of the limit groove 21 can respectively limit the two free ends of the elastic member 32. One end of the limiting portion 312 away from the pressing block 311 movably penetrates the bottom plate 20 and forms a limiting boss 313. The outer diameter of the limiting boss 313 is larger than that of the limiting portion 312. One side of the limiting boss 313 close to the limiting portion 312 can abut against the bottom surface of the bottom plate 20. When the rotor 100 is not placed on the pressing member 31, under the elastic force of the elastic member 32, the limiting boss 313 abuts against the bottom surface of the bottom plate 20 to prevent the pressing member 31 from disengaging from the bottom plate 20 due to the elastic force.

[0059] Furthermore, the pressing block 311 and the limiting portion 312 are detachably connected by screws. With this setting, it is convenient to install the pressing member 31 on the bottom plate 20. Exemplarily, refer to Figure 2, during installation, one end of the limiting part 312 away from the limiting boss 313 can be first inserted into the limiting groove 21 from the bottom of the bottom plate 20, then the pressing block 311 can be placed on the upper end of the limiting part 312 from the upper side of the bottom plate 20, and then the screw can be sequentially inserted into the pressing block 311 and the limiting part 312 from the upper side of the bottom plate 20, and the screw can be tightened.

[0060] As Figure 2 shown, the inner diameter of the limiting groove 21 is larger than the outer diameter of the pressing block 311. With such a setting, when the rotor disc 101 presses down the pressing block 311, the pressing block 311 can move into the limiting groove 21 and normally compress the elastic member 32, avoiding interference between the pressing block 311 and the bottom plate 20 and affecting the compression of the elastic member 32, and further affecting the pressing force on the rotor disc 101.

[0061] In an alternative embodiment, as Figures 1 to 3 shown, the cover plate 10 includes an overlapping aluminum plate 12 and a steel plate 11. The aluminum plate 12 is arranged on the side of the steel plate 11 close to the bottom plate 20, and the steel plate 11 is fixedly connected to the aluminum plate 12. Since the structural strength of the aluminum plate 12 is relatively low and it is easy to deform, and the magnet 102 is a strong magnet with a large magnetic force, the magnetic force plus the pressing force of the locking assembly 40 cannot be borne by the single aluminum plate 12 alone, and the single steel plate 11 will be attracted to the magnet 102, resulting in the cover plate 10 not being easily opened after the tooling is used up. Therefore, by stacking the steel plate 11 on the aluminum plate 12, the pressing force of the locking assembly 40 is applied to the steel plate 11, avoiding the deformation of the aluminum plate 12 and improving the overall structural strength of the cover plate 10. And the aluminum plate 12 is arranged between the steel plate 11 and the magnet 102, which can play a role in magnetic isolation and prevent the steel plate 11 from being attracted to the magnet 102 and causing the cover plate 10 not to be opened.

[0062] As Figures 1 to 3 shown, the thickness of the steel plate 11 is less than the thickness of the aluminum plate 12. With such a setting, while the steel plate 11 provides sufficient support and the aluminum plate 12 meets the magnetic isolation requirements, the cost and the overall weight are also taken into account. The specific thicknesses of the steel plate 11 and the aluminum plate 12 are not specifically limited here and can be flexibly set on the premise of meeting the actual requirements.

[0063] However, the hardness of the aluminum plate 12 is relatively low and the surface strength is insufficient. If it is in direct contact with the magnet 102, the surface of the aluminum plate 12 is easily scratched and damaged by the magnet 102 under the action of the pressing force. Therefore, in this embodiment, as Figure 2 and Figure 3 shown, a stainless steel thin plate 13 is further arranged on the side of the aluminum plate 12 close to the magnet 102, and the stainless steel thin plate 13 presses against the surface of each magnet 102 to apply the pressing force. The stainless steel thin plate 13 has high strength and hardness and also has a magnetic isolation effect, thus avoiding the aluminum plate 12 being directly pressed against the magnet 102 and causing the aluminum plate 12 to be scratched and damaged, and at the same time avoiding being attracted to the magnet 102 and causing the cover plate 10 not to be easily opened.

[0064] Specifically, as Figure 3 shown, the locking rod 41 passes through the steel plate 11 and the aluminum plate 12, and notches are respectively provided at the four corners of the stainless steel thin plate 13 to avoid the locking rod 41 of the locking assembly 40. Among them, the notches are roughly fan-shaped notches, which are directly formed during the processing of the stainless steel thin plate 13, avoiding too many round holes on the stainless steel thin plate 13 and affecting its structural strength and processing efficiency.

[0065] In an alternative embodiment, as Figure 3 shown, the edge of the stainless steel thin plate 13 is fixed to the aluminum plate 12 by a plurality of equal-height screws 14, but the equal-height screws 14 are not in a completely locked state, but there is a certain gap left, so that the stainless steel thin plate 13 can float in its plane and along the axial direction of the equal-height screws 14. Such a setting can enable the stainless steel thin plate 13 to have a certain moving space, so that the stainless steel thin plate 13 can contact all the magnets 102 as much as possible, with more sufficient contact, so that each magnet 102 is evenly pressed.

[0066] In an alternative embodiment, as Figures 1 to 3 shown, two symmetric positioning pins 16 are provided on the side of the aluminum plate 12 close to the bottom plate 20, and positioning holes 1012 are provided at the corresponding positions of the center of the rotor disc 101. The positioning pins 16 are inserted and matched with the positioning holes 1012. Through the insertion and matching of the positioning pins 16 and the positioning holes 1012, the rotor disc 101 can be prevented from moving when the rotor disc 101 is pressed, thus ensuring the pressing and curing effect.

[0067] In an alternative embodiment, as Figure 2 and Figure 3 shown, a centering ring 15 is fixedly connected to the center of the side of the aluminum plate 12 close to the bottom plate 20. Two symmetric lugs are provided on the circumferential side of the centering ring 15, and the above-mentioned positioning pins 16 are protruded on each lug. Along the direction close to the bottom plate 20, the centering ring 15 is higher than the positioning pins 16. An avoidance hole for avoiding the centering ring 15 is provided at the center of the stainless steel thin plate 13, and a center hole 1011 for inserting and matching with the centering ring 15 is provided at the center of the rotor disc 101. Before the positioning pins 16 are inserted into the positioning holes 1012, the centering ring 15 is first inserted into the center hole 1011, so as to perform an initial positioning on the position of the positioning pins 16, facilitating the subsequent cooperation between the positioning pins 16 and the positioning holes 1012.

[0068] This embodiment also provides a pressing device, including a downward pressing mechanism (not shown) and the above-mentioned motor rotor pressing and curing tooling. The downward pressing mechanism is used to drive the cover plate 10 to move in the direction close to the bottom plate 20 to press the rotor 100. By driving the cover plate 10 to move downward through the downward pressing mechanism, automatic pressing of the cover plate 10 can be realized, improving the degree of automation and saving labor costs.

[0069] Among them, the pressing-down mechanism is similar to the common press in the prior art. It mainly includes a frame, a linear driving structure fixed on the frame, and a pressing-down member connected to the output end of the linear driving structure. The pressing-down member can be a plate-like structure or a columnar structure. Place the pre-assembled motor rotor press-fastening and solidifying tooling on the tabletop of the frame. Then, the linear driving structure drives the pressing-down member to move downward. The pressing-down member applies pressure to the cover plate 10. The downward pressing of the cover plate 10 causes the elastic member 32 to be compressed, and at the same time, the locking rod 41 can be smoothly locked into the locking hole 22. Then, the linear driving structure drives the pressing-down member to reset. The linear driving structure can be a cylinder, a hydraulic cylinder, a linear module or other linear driving structures, and no specific limitation is made here. The specific structure of the pressing-down mechanism is relatively common in the prior art and will not be elaborated here.

[0070] In an alternative embodiment, rotary cylinders can be respectively arranged at positions on the pressing-down member corresponding to each locking assembly 40. The output end of the rotary cylinder can be detachably connected to the rotating handle 42. After the pressing-down member presses the cover plate 10 to a preset position, the rotary cylinder is connected to the rotating handle 42 and drives the rotating handle 42 to rotate. The rotating handle 42 drives the locking rod 41 to rotate, so as to lock the locking rod 41 in the locking hole 22. Such a setting can realize the automatic pressing and locking of the cover plate 10, improve the automation degree and save labor costs. Of course, the rotating handle 42 can also be manually screwed.

[0071] In an alternative embodiment, the detachable connection between the rotary cylinder and the rotating handle 42 can be realized by the cooperation of a protrusion and a groove. That is to say, when the pressing-down member contacts the cover plate 10, the protrusion at the output end of the rotary cylinder just inserts into the groove on the rotating handle 42, or the groove at the output end of the rotary cylinder just sleeves outside the protrusion on the rotating handle 42, realizing the circumferential limit between the rotary cylinder and the rotating handle 42. The output end of the rotary cylinder can drive the rotating handle 42 to rotate, and the connection between the output end of the rotary cylinder and the rotating handle 42 is convenient and fast.

[0072] Obviously, the above-mentioned embodiments of the present invention are only examples for clearly explaining the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. The motor rotor pressing and curing tooling is characterized by: include: The cover plate (10) and the bottom plate (20) are arranged opposite to each other, and a receiving space (50) for accommodating the rotor (100) is formed between the cover plate (10) and the bottom plate (20); The locking assembly (40) comprises a locking rod (41), wherein the locking rod (41) is rotatably arranged in a circumferential direction through one of the cover plate (10) and the base plate (20), and the other of the cover plate (10) and the base plate (20) is provided with a locking hole (22) for inserting one end of the locking rod (41), and the locking rod (41) can be rotated in the circumferential direction of the locking hole (22) to lock or unlock with the base plate (20).

2. The motor rotor pressing and curing tooling according to claim 1 is characterized in that: The locking rod (41) comprises a rod portion (411) and a locking pin (412); the rod portion (411) is inserted into the cover plate (10); the locking pin (412) is connected to one end of the rod portion (411) close to the bottom plate (20) and radially penetrates the rod portion (411); two free ends of the locking pin (412) respectively protrude from the circumferential side of the rod portion (411); the locking hole (22) is provided on the bottom plate (20); the rod portion (411) can rotate circumferentially in the locking hole (22) so that the locking pin (412) can switch between a position directly facing the locking hole (22) and a position avoiding the locking hole (22).

3. The motor rotor pressing and curing tooling according to claim 2 is characterized in that: The locking assembly (40) further comprises a limiting guide sleeve (43), wherein the limiting guide sleeve (43) is passed through the cover plate (10), and a side of the limiting guide sleeve (43) away from the base plate (20) abuts against a surface of the cover plate (10), and the rod portion (411) passes through the limiting guide sleeve (43) and can rotate circumferentially within the limiting guide sleeve (43).

4. The motor rotor pressing and curing tooling according to claim 3 is characterized in that: One end of the locking rod (41) away from the locking hole (22) is connected to a rotary handle (42).

5. The motor rotor pressing and curing tooling according to claim 4 is characterized in that: The limiting guide sleeve (43) is provided with two relatively arranged limiting protrusions (431) at one end away from the cover plate (10), and a limiting groove (432) is formed between the two limiting protrusions (431). The locking assembly (40) also includes a limiting pin (44), and the limiting pin (44) radially penetrates the rod portion (411). The free end of the limiting pin (44) protrudes from the peripheral side of the rod portion (411), and the free end of the limiting pin (44) is located in the limiting groove (432) and can abut against the two limiting protrusions (431) respectively.

6. The motor rotor pressing and curing tooling according to claim 5 is characterized in that: The rotary handle (42) abuts against the end surface of the limiting guide sleeve (43), and the limiting pin (44) abuts against the bottom of the limiting groove (432).

7. The motor rotor pressing and curing tooling according to claim 2 is characterized in that: The locking assembly (40) further comprises a gasket (45); a receiving groove (23) communicating with the locking hole (22) is provided on a side of the base plate (20) away from the cover plate (10); the gasket (45) is arranged in the receiving groove (23); and the locking pin (412) can abut against the gasket (45).

8. The motor rotor pressing and curing tool according to any one of claims 1 to 7, characterized in that: A plurality of the locking assemblies (40) are provided, and the plurality of the locking assemblies (40) are evenly arranged.

9. A clamping device, characterized in that: It comprises a pressing mechanism and a motor rotor pressing and curing tool as claimed in any one of claims 1 to 8, wherein the pressing mechanism is used to drive the cover plate (10) to move towards the bottom plate (20) to press the rotor (100).

10. The pressing device according to claim 9, characterized in that: A rotating cylinder is provided at the output end of the pressing mechanism, and a rotating handle (42) is connected to one end of the locking rod (41) away from the locking hole (22). The output end of the rotating cylinder is detachably connected to the rotating handle (42), and the rotating cylinder can drive the rotating handle (42) to drive the locking rod (41) to rotate.

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