A direct current brushless motor assembly device

Abstract

The application relates to a direct-current brushless motor assembling device which comprises a rack, a first mounting base mounted on the rack and used for mounting a first component, a second mounting base slidably mounted on the rack and used for mounting a second component, and a driving mechanism for driving the second mounting base to slide so as to realize the assembly of the first component and the second component; the first mounting base is provided with a first supporting arc surface for supporting a motor stator surface and a supporting surface for supporting a rear end of a lower shell; the first mounting base is provided with a pressing mechanism for pressing the motor stator against the first supporting arc surface; the second mounting base is provided with a second supporting arc surface for supporting a surface of an upper shell and a supporting column for abutting against an end surface of the second component; and the supporting column is provided with an arrangement groove for arranging a rotating shaft of a rear end of a motor rotor. The application has the effect of facilitating the assembly of the first component and the second component of the direct-current brushless motor.

Description

Technical Field

[0001] This application relates to the field of motor assembly technology, and in particular to a DC brushless motor assembly device. Background Technology

[0002] A brushless DC motor is an advanced motor technology that replaces traditional mechanical commutation with electronic commutation. It combines the high-efficiency control characteristics of DC motors with the reliability of AC motors and is widely used in industries such as manufacturing, new energy, and smart homes.

[0003] Reference Figure 1 A brushless DC motor includes a motor housing 11, a motor stator 12 mounted within the motor housing 11, and a motor rotor 13 rotatably mounted within the motor housing 11. The motor housing 11 includes a lower housing 111 for mounting the motor stator 12 and an upper housing 112 for mounting the motor rotor 13. During the installation of the brushless DC motor, firstly, the motor stator 12 is installed within the lower housing 111 to form a first component, with the motor stator 12 extending beyond the lower housing 111. Then, the motor rotor 13 is installed within the upper housing 112 to form a second component. Next, the first and second components are assembled, with the end of the motor stator 12 in the first component inserted into the upper housing 112 and abutting against the inner bottom wall of the upper housing 112. Finally, the upper housing 112 and the lower housing 111 are locked together with bolts, clamping the motor stator 12, thereby completing the assembly of the brushless DC motor.

[0004] Regarding the aforementioned related technologies, the inventors believe there is a need to provide a DC brushless motor assembly device for assembling the first component and the second component. Utility Model Content

[0005] To facilitate the assembly of the first and second components of a brushless DC motor, this application provides a brushless DC motor assembly device.

[0006] The DC brushless motor assembly device provided in this application adopts the following technical solution: A brushless DC motor assembly device includes a frame, a first mounting base mounted on the frame for mounting a first component, a second mounting base slidably mounted on the frame for mounting a second component, and a drive mechanism for driving the second mounting base to slide to assemble the first and second components. The first mounting base has a first supporting arc surface for supporting the surface of the motor stator and a supporting surface for supporting the rear end of the lower housing. The first mounting base also has a pressing mechanism for pressing the motor stator against the first supporting arc surface. The second mounting base has a second supporting arc surface for supporting the surface of the upper housing and a supporting column for abutting against the end face of the second component. The supporting column has an arrangement slot for arranging the rear end shaft of the motor rotor.

[0007] By adopting the above technical solution, during the assembly of the first and second components of the brushless DC motor, the first fixing component is installed on the first mounting base, and the second fixing component is installed on the second mounting base. A drive mechanism moves the second fixing component from the second mounting base to the first mounting base, allowing the first and second components to be assembled with an interference fit. The clamping mechanism helps to press the first component firmly onto the first mounting base, reducing the possibility of the first component shifting or moving due to external forces during assembly. The support column can hold the second component in place during assembly, facilitating the assembly of the first and second components.

[0008] Optionally, the clamping mechanism includes a clamping head located above the support surface and a lifting drive for driving the clamping head to rise and fall, the clamping head having an arc-shaped contact surface for abutting against the side wall of the motor stator.

[0009] By adopting the above technical solution, the clamping head is designed to press the first component onto the first mounting base during the assembly of the first and second components. The arc-shaped contact surface of the clamping head can abut against the side wall of the motor stator, thus pressing the motor stator more stably.

[0010] Optionally, the second mounting base has an arrangement through hole extending through the upper and lower surfaces, and the first mounting base is arranged on the frame through the arrangement through hole.

[0011] By adopting the above technical solution, the first mounting base is arranged on the frame through the through holes, which makes reasonable use of the device space, makes the structure more compact, and is conducive to the overall spatial layout and assembly operation of the device.

[0012] Optionally, the frame is equipped with a support block for supporting the front end shaft of the motor rotor and a drive component for driving the support block to extend and retract. The support block is located within the arrangement through hole. The support block has a support arc surface for supporting the front end shaft of the motor rotor.

[0013] By adopting the above technical solution, the support block facilitates the installation of the second component on the second mounting base, playing a role in supporting and positioning the second component. The support arc surface can better fit the rotor shaft at the front end of the motor rotor, improving the support stability.

[0014] Optionally, the frame is provided with guide rails on both sides of the first mounting base, and the bottom surface of the second mounting base is provided with guide sliders that correspond to and cooperate with the guide rails.

[0015] By adopting the above technical solution, when the drive mechanism drives the second mounting base to move laterally on the frame, the guide slider mounted on the bottom surface of the second mounting base cooperates with the guide rail to make the sliding of the second mounting base on the frame more stable and smooth, ensuring the stability and accuracy of the assembly process of the first component and the second component.

[0016] Optionally, the driving mechanism includes a driving assembly; the driving assembly includes an abutment plate mounted on the second mounting base, a conveying screw horizontally rotatably mounted on the frame, a conveying nut mounted on the abutment plate and cooperating with the conveying screw, and a conveying motor mounted on the frame and used to drive the conveying screw to rotate.

[0017] By adopting the above technical solution, the drive assembly uses a conveyor motor to drive the conveyor screw to rotate, and cooperates with the conveyor nut to make the abutment plate slide in the inner cavity of the frame, thereby driving the second mounting seat to slide to the first mounting seat to complete the assembly of the first component and the second component.

[0018] Optionally, the second mounting base is further provided with a drive cylinder for abutting the rotor shaft of the motor rotor. The drive cylinder is located on the side of the first mounting base opposite to the support column, and the first mounting base has a through hole for the piston rod of the drive cylinder to pass through.

[0019] By adopting the above technical solution, during the assembly of the first component and the second component, the piston rod of the drive cylinder passes through the through hole of the first mounting seat and abuts against the rotor shaft of the motor rotor, giving the motor rotor a locking force, reducing the probability of the motor rotor shifting during the sliding of the second mounting seat, and facilitating the assembly of the second component and the first component.

[0020] Optionally, the abutment plate extends into the inner cavity of the frame, and the top surface of the frame has a movable through hole for the abutment plate to slide.

[0021] By adopting the above technical solution, when the drive mechanism drives the second mounting base to assemble the first component and the second component, the movable through hole setting facilitates the sliding movement of the abutment plate in the inner cavity of the frame.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. A DC brushless motor assembly device, which uses a drive mechanism to drive a second mounting base to slide to a first mounting base to achieve the assembly of a first component and a second component, thereby improving the automation level of motor assembly; 2. By setting up a clamping mechanism, it is beneficial to press the first component firmly onto the first mounting base, thereby reducing the possibility of the first component being subjected to external forces during the assembly process, which could cause it to shift or move. 3. The assembly of the first component and the second component is completed by driving the second mounting base to slide through the drive component, and the drive cylinder is set to reduce the probability of the second component shifting during the movement. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a DC brushless motor.

[0024] Figure 2 This is a schematic diagram of the DC brushless motor assembly device in the embodiments of this application.

[0025] Figure 3 This is a schematic diagram of the cooperation between the first mounting base and the drive cylinder in an embodiment of this application.

[0026] Figure 4 This is a schematic diagram showing the cooperation between the first mounting base, the drive cylinder, and the second mounting base in an embodiment of this application.

[0027] Figure 5 This is a schematic cross-sectional view of the cooperation between the support block, the driving component, and the arrangement part in the embodiments of this application.

[0028] Figure 6 This is a schematic diagram of the drive mechanism structure in an embodiment of this application.

[0029] Figure 7 This is a cross-sectional schematic diagram of the first mounting base in an embodiment of this application.

[0030] Explanation of reference numerals in the attached drawings: 11. Motor housing; 111. Lower housing; 112. Upper housing; 12. Motor stator; 13. Motor rotor; 2. Frame; 22. Guide rail; 221. Guide groove; 23. Support block; 231. Abutment groove; 232. Support arc surface; 24. Drive component; 25. Arrangement part; 27. Movable through hole; 28. Limiting block; 3. First mounting base; 31. Placement block; 311. Support protrusion; 3111. First support arc surface; 32. Support surface; 321. Through hole; 322. Abutment protrusion; 33. Mounting bracket; 331. Connector; 3311. Lifting... 34. Lowering rod; 34. Pressing mechanism; 341. Pressing head; 3411. Pressing block; 3412. Abutment joint; 3413. Arc-shaped abutment surface; 342. Lifting drive component; 35. Support frame; 4. Second mounting base; 41. Abutment block; 411. Second support arc surface; 42. Support protrusion; 421. Support column; 4211. Arrangement slot; 43. Arrangement through hole; 44. Guide slider; 45. Abutment plate; 5. Drive mechanism; 51. Drive cylinder; 511. Positioning head; 52. Drive assembly; 522. Conveyor screw; 523. Conveyor nut; 524. Conveyor motor; 525. Fixing block. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0032] This application discloses a DC brushless motor assembly device for assembling a first component and a second component in a DC brushless motor. The structures of each component in the DC brushless motor can be referenced from [the specified method / reference]. Figure 1 This will not be cited separately in subsequent embodiments.

[0033] Reference Figure 2 The DC brushless motor assembly device includes a frame 2, a first mounting base 3 mounted on the frame 2 for mounting a first component, a second mounting base 4 slidably mounted on the frame 2 for mounting a second component, and a drive mechanism 5 for driving the second mounting base 4 to slide to achieve the assembly of the first and second components. The frame 2 is a square frame with an internal cavity.

[0034] Reference Figure 3The first mounting base 3 includes a placement block 31 for placing the motor stator 12, a support surface 32 supporting the rear end of the lower housing 111, and a mounting bracket 33 located at the top. The support surface 32 has an abutting protrusion 322 that abuts against the rear end of the lower housing 111. The placement block 31 has a support protrusion 311, which has a first support arc surface 3111 for supporting the surface of the motor stator 12. In this embodiment, the first mounting base 3 is bolted to the top surface of the frame 2. The first mounting base 3 has a clamping mechanism 34 for pressing the motor stator 12 against the first support arc surface 3111. The clamping mechanism 34 is mounted on the mounting bracket 33 at the top of the first mounting base 3.

[0035] Reference Figure 3 The clamping mechanism 34 includes a clamping head 341 located above the first supporting arc surface 3111 and a lifting drive member 342 for driving the clamping head 341 to rise and fall. The clamping head 341 includes a clamping block 3411 connected to the lower end of the lifting drive member 342 and an abutment 3412 fixed to the bottom of the clamping block 3411 for clamping the motor stator 12. The abutment 3412 has an arc-shaped abutment surface 3413 for abutting against the side wall of the motor stator 12. The top of the mounting bracket 33 is provided with a connector 331 for connecting the clamping block 3411. The connector 331 has a vertically downward extending lifting rod 3311 that cooperates with the lifting drive member 342. The clamping block 3411 is connected to the lower end of the lifting rod 3311. In this embodiment, the lifting drive member 342 is an inverted lifting cylinder with the piston rod of the lifting cylinder extending vertically downward. The abutment 3412 is fixed to the bottom surface of the clamping block 3411 by bolts.

[0036] Reference Figure 4 The second mounting base 4 is a square plate and is arranged on the top of the frame 2. The second mounting base 4 includes an abutment block 41 and a support protrusion 42 located on one side of the abutment block 41. The top side of the support protrusion 42 is provided with a support column 421 for abutting against the end face of the second component. The abutment block 41 is located in front of the support protrusion 42, and the top surface of the abutment block 41 has a second support arc surface 411 for supporting the surface of the upper housing 112. In order for the support column 421 to stably abut against the end face of the second component during assembly, the support column 421 has an arrangement slot 4211 for arranging the rear shaft of the motor rotor 13. The second mounting base 4 has an arrangement through hole 43 penetrating the upper and lower surfaces, and the first mounting base 3 is arranged on the frame 2 through the arrangement through hole 43. When the drive mechanism 5 drives the second mounting base 4 to move laterally on the frame 2, in order to make the sliding of the second mounting base 4 on the frame 2 more stable and smooth, the frame 2 is provided with guide rails 22 on both sides of the first mounting base 3. The bottom surface of the second mounting base 4 is equipped with guide sliders 44 that correspond to and cooperate with the guide rails 22. The side wall of the guide rails 22 is provided with guide grooves 221 for the guide sliders 44 to slide.

[0037] Reference Figure 5 The frame 2 is equipped with a support block 23 for supporting the front shaft of the motor rotor 13 and a drive member 24 for driving the support block 23 to extend and retract. The support block 23 has a support arc surface 232 for supporting the front rotor shaft of the motor rotor 13. The support block 23 is located within the arrangement through hole 43 of the second mounting base 4, and the drive member 24 is arranged within the inner cavity of the frame. The drive member 24 is a lifting cylinder with its piston rod extending vertically upwards. The inner cavity of the frame has an arrangement portion 25 for arranging the support block 23, and the drive member 24 is installed at the bottom of the arrangement portion 25. The bottom of the support block 23 has an abutment groove 231 for the piston rod of the lifting cylinder to abut against. The top surface of the frame 2 has a through groove for the support block 23 to extend out, and a limit block 28 is also provided between the frame 2 and the support block 23 to restrict the movement of the support block 23. In this embodiment, the arrangement portion 25 is fixed to the top surface of the frame 2 by bolts. When the device is started, the support block 23 retracts into the arrangement part 25 inside the frame cavity.

[0038] Reference Figure 6 and Figure 7 The drive mechanism 5 includes a drive assembly 52. ​​The second mounting base 4 has an abutment plate 45 on the side away from the supporting column 421, extending into the inner cavity of the frame. The drive assembly 52 is located on the side of the abutment plate 45 facing away from the first mounting base 3, and is mounted on the frame 2. The drive assembly 52 includes the abutment plate 45, a horizontally rotatable lead screw 522 mounted on the frame 2, a lead screw 523 mounted on the abutment plate 45 and cooperating with the lead screw 522, and a drive motor 524 mounted on the frame 2 for driving the lead screw 522 to rotate. The drive assembly 52 is horizontally arranged. The frame 2 also has a fixing block 525 for fixing the lead screw 522; in this embodiment, the fixing block 525 is fixed to the frame 2 with bolts. During the assembly of the first and second components, the drive assembly 52 drives the second mounting base 4 to slide to the first mounting base 3 to complete the assembly of the first and second components. After assembly is completed, the drive assembly 52 pushes the abutment plate 45 to restore the position of the second mounting base 4, and repeats the assembly process for the next time.

[0039] Reference Figure 6 and Figure 7The second mounting base 4 is also provided with a drive cylinder 51 for abutting against the rotor shaft of the motor rotor 13. The drive cylinder 51 is located on the side of the first mounting base 3 facing away from the support column 421, and is mounted on the second mounting base 4. The second mounting base 4 has a support frame 35 for fixing and supporting the drive cylinder 51. The drive cylinder 51 is horizontally arranged and connected to the second mounting base 4 through the support frame 35. The piston rod of the drive cylinder 51 extends horizontally and passes through the through hole 321 to abut against the rotor shaft. The piston rod of the drive cylinder 51 has a positioning head 511 that abuts against the rotor shaft, and the first mounting base 3 has a through hole 321 for the piston rod of the drive cylinder 51 to pass through.

[0040] Reference Figure 2 and Figure 6 When the drive mechanism 5 drives the second mounting base 4 to assemble the first and second components, a sliding through hole 27 is provided on the top surface of the frame 2 to facilitate the sliding movement of the abutment plate 45 inside the frame.

[0041] Combination Figures 1 to 7 The implementation principle of a DC brushless motor assembly device according to an embodiment of this application is as follows: A first component is installed on a first mounting base 3, and a second component is installed on a second mounting base 4. After the device is started, the support block 23 retracts to the arrangement portion 25 within the frame cavity. The clamping head 341, driven by the lifting drive component 342, fixes the first component on the first mounting base 3. The drive assembly 52 uses a conveying motor 524 to drive the conveying screw 522 to rotate, cooperating with the conveying nut 523 to cause the abutment plate 45 to slide within the frame cavity, thereby driving the second mounting base 4 to slide onto the first mounting base 3 to complete the assembly of the first and second components. During the assembly of the first and second components, the piston rod of the drive cylinder 51 abuts against the rotor shaft of the motor rotor 13, facilitating the assembly of the second and first components. After assembly, the drive assembly 52 drives the second mounting base 4 to slide, restoring its original position, and then repeats the assembly process.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A DC brushless motor assembly device, characterized in that, The assembly includes a frame (2), a first mounting seat (3) mounted on the frame (2) for mounting a first component, a second mounting seat (4) slidably mounted on the frame (2) for mounting a second component, and a drive mechanism (5) for driving the second mounting seat (4) to slide to assemble the first and second components; the first mounting seat (3) has a first supporting arc surface (3111) for supporting the surface of the motor stator (12) and a supporting surface (32) for supporting the rear end of the lower housing (111), and the first mounting seat (3) has a pressing mechanism (34) for pressing the motor stator (12) against the first supporting arc surface (3111); the second mounting seat (4) has a second supporting arc surface (411) for supporting the surface of the upper housing (112) and a supporting column (421) for abutting against the end face of the second component, and the supporting column (421) has an arrangement slot (4211) for arranging the rear end shaft of the motor rotor (13).

2. The DC brushless motor assembly device according to claim 1, characterized in that, The clamping mechanism (34) includes a clamping head (341) located above the support surface (32) and a lifting drive (342) for driving the clamping head (341) to rise and fall. The clamping head (341) has an arcuate contact surface (3413) for abutting against the side wall of the motor stator (12).

3. The DC brushless motor assembly device according to claim 1, characterized in that, The second mounting base (4) has an arrangement through hole (43) through the upper and lower surfaces, and the first mounting base (3) is arranged on the frame (2) through the arrangement through hole (43).

4. The DC brushless motor assembly device according to claim 3, characterized in that, The frame (2) is equipped with a support block (23) for supporting the front end shaft of the motor rotor (13) and a drive member (24) for driving the support block (23) to extend and retract. The support block (23) is located in the arrangement through hole (43). The support block (23) has a support arc surface (232) for supporting the front end rotor shaft of the motor rotor (13).

5. The DC brushless motor assembly device according to claim 1, characterized in that, The frame (2) is provided with guide rails (22) on both sides of the first mounting base (3), and the bottom surface of the second mounting base (4) is provided with guide sliders (44) that correspond to and cooperate with the guide rails (22).

6. The DC brushless motor assembly device according to claim 1, characterized in that, The drive mechanism (5) includes a drive assembly (52); the drive assembly (52) includes an abutment plate (45) mounted on the second mounting base (4), a conveying screw (522) horizontally rotatably mounted on the frame (2), a conveying nut (523) mounted on the abutment plate (45) and cooperating with the conveying screw (522), and a conveying motor (524) mounted on the frame (2) and used to drive the conveying screw (522) to rotate.

7. The DC brushless motor assembly device according to claim 6, characterized in that, The second mounting base (4) is also provided with a drive cylinder (51) for abutting the rotor shaft of the motor rotor (13). The drive cylinder (51) is located on the side of the first mounting base (3) facing away from the support column (421). The first mounting base (3) has a through hole (321) for the piston rod of the drive cylinder (51) to pass through.

8. The DC brushless motor assembly device according to claim 6, characterized in that, The abutment plate (45) extends into the inner cavity of the frame (2), and the top surface of the frame (2) is provided with a movable through hole (27) for the abutment plate (45) to slide.

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