A new energy automobile motor controller aluminum alloy box body polishing device

Abstract

This invention relates to the field of housing grinding devices, and provides a grinding device for aluminum alloy housings of new energy vehicle motor controllers. The device includes a support frame, and further includes: two vertical positioning plates, both slidably connected to a rotating frame, with a power mechanism disposed between the two vertical positioning plates; and a transmission shaft, rotatably connected to the rotating frame, and the transmission shaft having two sections of threads in opposite directions, each section of which is connected to a transverse positioning plate. The grinding device for aluminum alloy housings of new energy vehicle motor controllers provided by this invention uses two vertical and two transverse positioning plates to support and limit the four inner end faces of the aluminum alloy housing; simultaneously, under the action of the snap-fit ​​assembly, excessive pressure is avoided on the inner end faces of the aluminum alloy housing by the two vertical and two transverse positioning plates, thus preventing the inner end faces of the aluminum alloy housing from bulging outwards.

Description

Technical Field

[0001] This invention belongs to the field of housing grinding devices, and particularly relates to a grinding device for aluminum alloy housings of new energy vehicle motor controllers. Background Technology

[0002] The motor controller is a crucial component of the drive motor control system in pure electric vehicles. Its primary function is to regulate the motor's operating state to meet the various operational requirements of the vehicle. Specifically, the MCU obtains the vehicle's requirements from the vehicle controller and power from the battery. After modulation by its own inverter, it obtains the necessary power for the drive motor, thereby ensuring that the motor's speed and torque meet the vehicle's requirements.

[0003] The motor controller needs to be protected by a housing. During the manufacturing process, the edges and corners of the housing need to be ground to prevent bumps and knocks during use, which could cause injury to the person or the device.

[0004] An existing patent announcement number CN214265011U discloses a novel cabinet grinding device, which includes a base plate. A left side plate is slidably connected to the left side of the base plate, and a set of grinding wheels is installed on the left side plate. A vertically arranged right side plate is fixedly connected to the right side of the base plate, and a movable plate is slidably connected to the right side plate. An electric push rod is fixedly connected to the right side plate, and the end of the telescopic rod of the electric push rod is fixedly connected to the movable plate. An upper fixed plate is fixedly connected to the upper side of the movable plate, and a lower fixed plate is fixedly connected to the lower side of the movable plate. A clamping device is provided between the upper fixed plate and the lower fixed plate, thereby achieving a highly efficient grinding effect.

[0005] However, the aforementioned new type of box grinding device still has the following drawbacks. When the box is fixed, it is fixed by external clamping, which not only makes it inconvenient to grind the clamping surface of the box and its surrounding edges, but also restricts the horizontal movement and axial rotation of the box by the friction between the clamping surface and the side of the box. Not only can the clamping and fixing effect not be guaranteed, but also when the clamping is too tight, it is very easy to cause the surface of the box to dent.

[0006] To avoid the aforementioned technical problems, it is indeed necessary to provide a grinding device for the aluminum alloy housing of a new energy vehicle motor controller to overcome the deficiencies in the prior art. Summary of the Invention

[0007] The purpose of this invention is to provide a grinding device for the aluminum alloy housing of a new energy vehicle motor controller, which aims to solve the problem.

[0008] This invention is implemented as follows: a grinding device for aluminum alloy housing of a new energy vehicle motor controller, comprising a support frame, an electric telescopic rod fixedly connected to the support frame, a movable frame fixedly connected to the electric telescopic rod, a fixed shaft rotatably connected to the movable frame, a rotating frame fixedly connected to the fixed shaft, and a drive assembly connected to the fixed shaft for driving the fixed shaft to rotate; and further comprising:

[0009] Two vertical positioning plates are slidably connected to the rotating frame. A power mechanism is provided between the two vertical positioning plates, which is used to drive the two vertical positioning plates to move towards each other.

[0010] The drive shaft is rotatably connected to the rotating frame, and the drive shaft is provided with two sections of threads in opposite directions. Each section of thread is connected to a transverse positioning plate. Both transverse positioning plates are slidably connected to the rotating frame, and the transverse positioning plates are perpendicular to the vertical positioning plates. The power mechanism can drive the drive shaft to rotate. When the transverse positioning plates contact the inner end face of the aluminum alloy housing, the power mechanism disengages the drive shaft.

[0011] Both vertical positioning plates are slidably connected to a guide mechanism, which can guide the aluminum alloy box. A limit component is provided between the two vertical positioning plates, which can limit the horizontal positioning plate.

[0012] The vertical positioning plate and the horizontal positioning plate are connected to a suction mechanism, which can position the aluminum alloy box.

[0013] A grinding mechanism is provided on one side of the mobile frame.

[0014] A further technical solution is that the power mechanism includes a motor, a drive wheel, an output shaft, a first transmission wheel, a second transmission wheel, a driven wheel, and a locking assembly;

[0015] The motor is fixedly connected to the rotating frame, the driving wheel is fixedly connected to the power shaft of the motor, the output shaft is rotatably connected to the rotating frame, the first transmission wheel and the second transmission wheel are both rotatably connected to the output shaft, and a snap-fit ​​assembly is connected between the first transmission wheel and the second transmission wheel. The snap-fit ​​assembly can elastically abut the first transmission wheel and the second transmission wheel against the output shaft. The driven wheel is fixedly connected to the transmission shaft, the first transmission wheel meshes with the driving wheel, and the second transmission wheel meshes with the driven wheel.

[0016] The output shaft is provided with two sections of threads in opposite directions, and two vertical positioning plates are threadedly connected to the output shaft.

[0017] In a further technical solution, the snap-fit ​​assembly includes a spring, a locating pin, and a toothed ring;

[0018] Both the first and second transmission wheels are provided with a plurality of open slots, and each open slot is slidably connected with a positioning pin. A spring is provided between the positioning pin and the inner end face of the open slot. The gear ring is fixedly connected to the output shaft, and the positioning pin abuts against the gear ring.

[0019] In a further technical solution, the guiding mechanism includes a guide seat, a slide groove, and an elastic limiting rod;

[0020] The vertical positioning plate is provided with a sliding groove, in which two guide seats are slidably connected. The two guide seats are symmetrically arranged about the center plane of the vertical positioning plate, and an elastic limiting rod is connected between the two guide seats and the vertical positioning plate.

[0021] In a further technical solution, the limiting component includes a guide rail and a limiting rod. The guide rail and the limiting rod are slidably connected. One end of the guide rail and the limiting rod are respectively fixedly connected to a guide seat. The transverse positioning plate is provided with a slot, and the guide rail can be engaged in the slot.

[0022] In a further technical solution, the guide seat is V-shaped, and the guide rail and the limiting rod are both fixed at the middle end of the guide seat.

[0023] In a further technical solution, the suction mechanism includes a rubber ring, a rubber tube, and an air pump;

[0024] Both the vertical positioning plate and the horizontal positioning plate have rubber rings on their end faces, and both end faces have through holes. The vertical positioning plate and the horizontal positioning plate are connected to the air pump through rubber tubes, and the air pump is fixedly connected to the rotating frame.

[0025] A further technical solution is that a support seat is fixedly provided at the middle end of the guide seat.

[0026] In a further technical solution, the drive assembly includes a drive motor and a gear transmission pair. The drive motor is fixedly connected to the moving frame, and the drive motor is connected to the fixed shaft through the gear transmission pair.

[0027] A further technical solution includes a grinding mechanism comprising a drive rod, a mounting frame, a fixed seat, a first grinding machine, a second grinding machine, and an adjusting rod. The mounting frame is slidably connected to a support frame, and the drive rod is fixedly connected to the support frame. The drive rod can push the mounting frame to slide along the support frame. The mounting frame is slidably connected to two fixed seats. The adjusting rod is rotatably connected to the mounting frame. The adjusting rod is provided with two sections of threads in opposite directions, and the two fixed seats are respectively connected to the two sections of threads. Each fixed seat fixes the second grinding machine, and the first grinding machine is fixedly connected to the mounting frame.

[0028] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0029] The present invention provides a grinding device for aluminum alloy housing of new energy vehicle motor controller. Two vertical positioning plates and two horizontal positioning plates support and limit the four inner end faces of the aluminum alloy housing. At the same time, under the action of the snap-fit ​​component, it can avoid the two vertical positioning plates and two horizontal positioning plates from applying excessive pressure to the inner end faces of the aluminum alloy housing, thereby preventing the inner end faces of the aluminum alloy housing from bulging outward.

[0030] The present invention provides a grinding device for aluminum alloy housing of motor controller of new energy vehicle. A support seat is fixedly provided at the middle end of the guide seat. The support seat can move synchronously with the vertical positioning plate. When the vertical positioning plate abuts against the inner end surface of the aluminum alloy housing, the support seat can abut against the inner end surface of the aluminum alloy housing near the corner. Thus, multi-point support is achieved when abutting the inner end surface of the aluminum alloy housing, avoiding the vertical positioning plate abutting against the center part of the aluminum alloy housing alone, which would cause the center to bulge outward.

[0031] The present invention provides a grinding device for aluminum alloy housing of new energy vehicle motor controller. When the guide seat abuts against the inner side of the aluminum alloy housing, the guide rail and the limiting rod can simultaneously fit against the inner side of the aluminum alloy housing. When the two horizontal positioning plates abut against the inner side of the aluminum alloy housing respectively, the guide rail can be engaged in the slot, thereby increasing the overall connection stability between the horizontal positioning plate and the vertical positioning plate. After fixing, the rail and the limiting rod can abut against the corner of the aluminum alloy housing, increasing the fixing stability.

[0032] The present invention provides a grinding device for aluminum alloy housing of new energy vehicle motor controller. This grinding device can achieve center positioning of aluminum alloy housing when fixing it, which can not only improve grinding efficiency, but also improve grinding accuracy. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of the present invention;

[0034] Figure 2 This is a schematic diagram showing the connection between the power mechanism and the vertical and horizontal positioning plates;

[0035] Figure 3 This is a top sectional view of the output shaft and the first drive wheel;

[0036] Figure 4 for Figure 3 Enlarged structural diagram of region A in the middle;

[0037] Figure 5 for Figure 2 The front view;

[0038] Figure 6 This is a schematic diagram of the guiding mechanism.

[0039] In the attached diagram: 1. Support frame; 2. Drive assembly; 21. Drive motor; 22. Gear transmission pair; 3. Support base; 4. Power mechanism; 41. Motor; 42. Drive wheel; 43. Output shaft; 44. First transmission wheel; 45. Second transmission wheel; 46. Driven wheel; 47. Snap-fit ​​assembly; 471. Spring; 472. Positioning pin; 473. Gear ring; 5. Guide mechanism; 51. Guide seat; 52. Slide groove; 53. Elastic limit rod; 6. Limit assembly; 61. Guide rail; 62. Limit rod; 7. Suction mechanism; 71. Rubber ring; 72. Rubber tube; 73. Air pump;

[0040] 8. Grinding mechanism; 81. Drive rod; 82. Mounting bracket; 83. Fixed base; 84. No. 1 grinder; 85. No. 2 grinder; 86. Adjusting rod; 9. Opening slot; 10. Electric telescopic rod; 11. Moving frame; 12. Rotating frame; 13. Fixed shaft; 14. Vertical positioning plate; 15. Drive shaft; 16. Horizontal positioning plate; 17. Through hole; 18. Slot. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0042] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0043] like Figures 1-2 As shown, this invention provides a grinding device for aluminum alloy housings of new energy vehicle motor controllers, comprising a support frame 1, an electric telescopic rod 10 fixedly connected to the support frame 1, a movable frame 11 fixedly connected to the electric telescopic rod 10, a fixed shaft 13 rotatably connected to the movable frame 11, a rotating frame 12 fixedly connected to the fixed shaft 13, and a drive assembly 2 connected to the fixed shaft 13 for driving the fixed shaft 13 to rotate. The device also includes:

[0044] Two vertical positioning plates 14 are slidably connected to the rotating frame 12. A power mechanism 4 is provided between the two vertical positioning plates 14. The power mechanism 4 is used to drive the two vertical positioning plates 14 to move towards each other.

[0045] The drive shaft 15 is rotatably connected to the rotating frame 12, and the drive shaft 15 is provided with two sections of threads in opposite directions. Each section of thread is connected to a transverse positioning plate 16. Both transverse positioning plates 16 are slidably connected to the rotating frame 12, and the transverse positioning plates 16 are perpendicular to the vertical positioning plate 14. The power mechanism 4 can drive the drive shaft 15 to rotate. When the transverse positioning plate 16 contacts the inner end face of the aluminum alloy box, the power mechanism 4 releases the transmission of the drive shaft 15.

[0046] Both vertical positioning plates 14 are slidably connected to a guide mechanism 5, which can guide the aluminum alloy box. A limit component 6 is provided between the two vertical positioning plates 14, which can limit the horizontal positioning plate 16.

[0047] The vertical positioning plate 14 and the horizontal positioning plate 16 are connected to a suction mechanism 7, which can position the aluminum alloy box.

[0048] A grinding mechanism 8 is provided on one side of the movable frame 11.

[0049] When in use, the aluminum alloy box is placed vertically along its length. The aluminum alloy box is guided by the guide mechanism 5. The inner end face of the aluminum alloy box overlaps on a vertical positioning plate 14. The aluminum alloy box is also fitted on the outside of the vertical positioning plate 14 and the horizontal positioning plate 16.

[0050] Then, the power mechanism 4 is activated. The power mechanism 4 drives the two vertical positioning plates 14 to move towards each other, thereby supporting and limiting the aluminum alloy box. At the same time, the power mechanism 4 can drive the transmission shaft 15 to rotate. The transmission shaft 15 drives the two horizontal positioning plates 16 to move towards each other through threaded transmission. The two horizontal positioning plates 16 contact the inner end face of the aluminum alloy box. Then, the power mechanism 4 releases the transmission to the transmission shaft 15. The power mechanism 4 continues to drive the two vertical positioning plates 14 to move towards each other. Finally, the two vertical positioning plates 14 provide vertical support for the aluminum alloy box.

[0051] The vertical positioning plate 14 and the horizontal positioning plate 16 are connected to a suction mechanism 7, which can position the aluminum alloy box.

[0052] The four inner end faces of the aluminum alloy box are supported and limited by two vertical positioning plates 14 and two horizontal positioning plates 16, while restricting the axial rotation of the aluminum alloy box.

[0053] Finally, the grinding mechanism 8 grinds all the outer surfaces of the aluminum alloy box.

[0054] In embodiments of the present invention, such as Figures 2-5As shown, in a preferred embodiment of the present invention, the power mechanism 4 includes a motor 41, a driving wheel 42, an output shaft 43, a first transmission wheel 44, a second transmission wheel 45, a driven wheel 46, and a snap-fit ​​assembly 47.

[0055] The motor 41 is fixedly connected to the rotating frame 12, the driving wheel 42 is fixedly connected to the power shaft of the motor 41, the output shaft 43 is rotatably connected to the rotating frame 12, the first transmission wheel 44 and the second transmission wheel 45 are both rotatably connected to the output shaft 43, and a snap-fit ​​assembly 47 is connected between the first transmission wheel 44 and the second transmission wheel 45. The snap-fit ​​assembly 47 can elastically abut the first transmission wheel 44 and the second transmission wheel 45 against the output shaft 43. The driven wheel 46 is fixedly connected to the transmission shaft 15, the first transmission wheel 44 meshes with the driving wheel 42, and the second transmission wheel 45 meshes with the driven wheel 46.

[0056] The output shaft 43 is provided with two sections of threads in opposite directions, and two vertical positioning plates 14 are threadedly connected to the output shaft 43.

[0057] The snap-fit ​​assembly 47 includes a spring 471, a locating pin 472, and a toothed ring 473;

[0058] Both the first transmission wheel 44 and the second transmission wheel 45 are provided with a plurality of open slots 9. Each of the open slots 9 is slidably connected with a positioning pin 472. A spring 471 is provided between the positioning pin 472 and the inner end face of the open slot 9. The gear ring 473 is fixedly connected to the output shaft 43, and the positioning pin 472 abuts against the gear ring 473.

[0059] When in use, start the motor 41, which drives the drive wheel 42 to rotate. The drive wheel 42 drives the output shaft 43 to rotate through the cooperation of the first transmission wheel 44. The output shaft 43 drives the transmission shaft 15 to rotate through the cooperation of the second transmission wheel 45 and the driven wheel 46. Thus, the output shaft 43 drives the two vertical positioning plates 14, and the transmission shaft 15 drives the two horizontal positioning plates 16 to move towards each other simultaneously.

[0060] When the two horizontal positioning plates 16 contact the inner wall of the aluminum alloy box, the transmission shaft 15 cannot rotate due to the resistance of the aluminum alloy box. The positioning pin 472 disengages from the gear ring 473, and the second transmission wheel 45 is released from the fixed connection with the output shaft 43. The output shaft 43 continues to drive the two vertical positioning plates 14 to move relative to each other. Finally, when the two vertical positioning plates 14 abut against the upper and lower inner end faces of the aluminum alloy box, the first transmission wheel 44 is released from the fixed connection with the output shaft 43.

[0061] Two vertical positioning plates 14 and two horizontal positioning plates 16 support and limit the four inner end faces of the aluminum alloy box; at the same time, under the action of the snap-fit ​​assembly 47, the two vertical positioning plates 14 and two horizontal positioning plates 16 can avoid applying too much pressure to the inner end faces of the aluminum alloy box, thereby causing the inner end faces of the aluminum alloy box to bulge outward.

[0062] In embodiments of the present invention, such as Figure 6 As shown, in a preferred embodiment of the present invention, the guiding mechanism 5 includes a guide seat 51, a slide groove 52, and an elastic limiting rod 53;

[0063] The vertical positioning plate 14 is provided with a sliding groove 52, in which two guide seats 51 are slidably connected. The two guide seats 51 are symmetrically arranged about the center face of the vertical positioning plate 14, and an elastic limiting rod 53 is connected between the two guide seats 51 and the vertical positioning plate 14.

[0064] When the aluminum alloy box is fitted over the vertical positioning plate 14 and the horizontal positioning plate 16, the guide seat 51 first abuts against the inner edge of the aluminum alloy box, and finally one inner end face of the aluminum alloy box abuts against the upper vertical positioning plate 14. At the same time, under the action of the elastic limiting rod 53, the two inner sides of the aluminum alloy box elastically abut against the guide seat 51 respectively. The guide seat 51 can initially limit the aluminum alloy box, and at the same time, it can make the aluminum alloy box symmetrically distributed about the vertical positioning plate 14 in the horizontal direction, which is convenient for the two horizontal positioning plates 16 to limit the position.

[0065] In embodiments of the present invention, such as Figure 2 and Figure 6 As shown, in a preferred embodiment of the present invention, the limiting component 6 includes a guide rail 61 and a limiting rod 62. The guide rail 61 and the limiting rod 62 are slidably connected. One end of the guide rail 61 and the limiting rod 62 are respectively fixedly connected to a guide seat 51. The transverse positioning plate 16 is provided with a slot 18, and the guide rail 61 can be engaged in the slot 18. The guide seat 51 is V-shaped, and the guide rail 61 and the limiting rod 62 are both fixed at the middle end of the guide seat 51.

[0066] When the guide seat 51 abuts against the inner side of the aluminum alloy box, the guide rail 61 and the limiting rod 62 can simultaneously fit against the inner side of the aluminum alloy box. When the two horizontal positioning plates 16 abut against the inner side of the aluminum alloy box respectively, the guide rail 61 can be engaged in the slot 18, thereby increasing the overall connection stability between the horizontal positioning plate 16 and the vertical positioning plate 14. After fixing, the guide rail 61 and the limiting rod 62 can abut against the corner of the aluminum alloy box, increasing the fixing stability.

[0067] A support seat 3 is fixedly installed at the middle end of the guide seat 51. The support seat 3 can move synchronously with the vertical positioning plate 14. When the vertical positioning plate 14 abuts against the inner end face of the aluminum alloy box, the support seat 3 can abut against the inner end face of the aluminum alloy box near the corner. This achieves multi-point support when abutting against the inner end face of the aluminum alloy box, avoiding the vertical positioning plate 14 abutting against the center part of the aluminum alloy box alone, which would cause the center to bulge outward.

[0068] In embodiments of the present invention, such as Figure 1 As shown, in a preferred embodiment of the present invention, the suction mechanism 7 includes a rubber ring 71, a rubber tube 72, and an air pump 73;

[0069] Both the vertical positioning plate 14 and the horizontal positioning plate 16 are provided with rubber rings 71 on their end faces, and both the vertical positioning plate 14 and the horizontal positioning plate 16 are provided with through holes 17 on their end faces. The vertical positioning plate 14 and the horizontal positioning plate 16 are connected to the air pump 73 through rubber tubes 72, and the air pump 73 is fixedly connected to the rotating frame 12.

[0070] By having the rubber ring 71 adhere to the inner end face and inner side of the aluminum alloy box, the air pump 73 draws gas from the vertical positioning plate 14 and the horizontal positioning plate 16 through the rubber tube 72, thereby making the inner end face and inner side of the aluminum alloy box adhere to the vertical positioning plate 14 and the horizontal positioning plate 16, further increasing the fixing stability of the aluminum alloy box.

[0071] The drive assembly 2 includes a drive motor 21 and a gear transmission pair 22. The drive motor 21 is fixedly connected to the movable frame 11, and the drive motor 21 is connected to the fixed shaft 13 through the gear transmission pair 22.

[0072] The drive unit 21 drives the fixed shaft 13 to rotate through the gear transmission pair 22, and the fixed shaft 13 drives the rotating frame 12 to rotate, thereby polishing the various outer end faces and edges of the aluminum alloy box.

[0073] The grinding mechanism 8 includes a drive rod 81, a mounting frame 82, a fixed seat 83, a first grinding machine 84, a second grinding machine 85, and an adjusting rod 86. The mounting frame 82 is slidably connected to the support frame 1, and the drive rod 81 is fixedly connected to the support frame 1. The drive rod 81 can push the mounting frame 82 to slide along the support frame 1. The mounting frame 82 is slidably connected to two fixed seats 83. The adjusting rod 86 is rotatably connected to the mounting frame 82. The adjusting rod 86 is provided with two sections of threads in opposite directions, and the two fixed seats 83 are respectively connected to the two sections of threads. Each fixed seat 83 fixes the second grinding machine 85. The first grinding machine 84 is fixedly connected to the mounting frame 82.

[0074] Drive rod 81 drives mounting bracket 82 to slide along support frame 1, thereby driving grinding machine 84 and grinding machine 85 to grind the aluminum alloy box. When the aluminum alloy box is fixed, the two vertical positioning plates 14 have a central surface in the vertical direction. The two vertical positioning plates 14 are symmetrical about the central surface. After the aluminum alloy boxes of different sizes are fixed, the vertical direction is always symmetrical about this central surface; thus, Figure 1 As shown, the central symmetry planes of the two No. 2 grinding machines 85 can coincide with the central planes of the two vertical positioning plates 14 in the vertical direction. Adjusting the adjusting rod 86 causes the two No. 2 grinding machines 85 to move relative to each other. The distance between the No. 2 grinding machine 85 and the edges of the aluminum alloy box is always the same. When the two No. 2 grinding machines 85 grind the edges of the aluminum alloy box at the same time, it can not only improve the grinding efficiency, but also improve the grinding accuracy.

[0075] Similarly, when this new energy vehicle motor controller aluminum alloy housing grinding device fixes aluminum alloy housings of different sizes, the horizontal center plane of the aluminum alloy housing remains unchanged; thus, when fixing aluminum alloy housings of different sizes, the center position of the side corresponding to the opening end of the aluminum alloy housing remains unchanged. This new energy vehicle motor controller aluminum alloy housing grinding device can achieve center positioning of the aluminum alloy housing when fixing it, which not only improves grinding efficiency but also improves grinding accuracy.

[0076] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0077] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A grinding device for aluminum alloy housing of a new energy vehicle motor controller, comprising a support frame (1), wherein an electric telescopic rod (10) is fixedly connected to the support frame (1), a movable frame (11) is fixedly connected to the electric telescopic rod (10), the movable frame (11) is rotatably connected to a fixed shaft (13), a rotating frame (12) is fixedly connected to the fixed shaft (13), and a drive assembly (2) is connected to the fixed shaft (13), the drive assembly (2) being used to drive the fixed shaft (13) to rotate, characterized in that, Also includes: Two vertical positioning plates (14) are slidably connected to the rotating frame (12). A power mechanism (4) is provided between the two vertical positioning plates (14). The power mechanism (4) is used to drive the two vertical positioning plates (14) to move towards each other. The drive shaft (15) is rotatably connected to the rotating frame (12), and the drive shaft (15) is provided with two threads in opposite directions. Each thread is connected to a transverse positioning plate (16). The two transverse positioning plates (16) are slidably connected to the rotating frame (12), and the transverse positioning plate (16) is perpendicular to the vertical positioning plate (14). The power mechanism (4) can drive the drive shaft (15) to rotate. When the transverse positioning plate (16) contacts the inner end face of the aluminum alloy box, the power mechanism (4) releases the transmission of the drive shaft (15). Both vertical positioning plates (14) are slidably connected to a guide mechanism (5), which can guide the aluminum alloy box. A limit component (6) is provided between the two vertical positioning plates (14), which can limit the horizontal positioning plate (16). The vertical positioning plate (14) and the horizontal positioning plate (16) are connected together to a suction mechanism (7), which can position the aluminum alloy box. A grinding mechanism (8) is provided on one side of the movable frame (11).

2. The grinding device for aluminum alloy housing of new energy vehicle motor controller according to claim 1, characterized in that, The power mechanism (4) includes a motor (41), a drive wheel (42), an output shaft (43), a first transmission wheel (44), a second transmission wheel (45), a driven wheel (46), and a snap-fit ​​assembly (47). The motor (41) is fixedly connected to the rotating frame (12), the driving wheel (42) is fixedly connected to the power shaft of the motor (41), the output shaft (43) is rotatably connected to the rotating frame (12), the first transmission wheel (44) and the second transmission wheel (45) are both rotatably connected to the output shaft (43), and a snap-fit ​​assembly (47) is connected between the first transmission wheel (44) and the second transmission wheel (45). The snap-fit ​​assembly (47) can elastically abut the first transmission wheel (44) and the second transmission wheel (45) against the output shaft (43). The driven wheel (46) is fixedly connected to the transmission shaft (15), the first transmission wheel (44) meshes with the driving wheel (42), and the second transmission wheel (45) meshes with the driven wheel (46). The output shaft (43) is provided with two threads in opposite directions, and two vertical positioning plates (14) are threadedly connected to the output shaft (43).

3. The grinding device for aluminum alloy housing of new energy vehicle motor controller according to claim 2, characterized in that, The snap-fit ​​assembly (47) includes a spring (471), a locating pin (472), and a toothed ring (473). The first transmission wheel (44) and the second transmission wheel (45) are each provided with a plurality of open slots (9), and each open slot (9) is slidably connected with a positioning pin (472). A spring (471) is provided between the positioning pin (472) and the inner end face of the open slot (9). The gear ring (473) is fixedly connected to the output shaft (43), and the positioning pin (472) abuts against the gear ring (473).

4. The grinding device for aluminum alloy housing of new energy vehicle motor controller according to claim 1, characterized in that, The guiding mechanism (5) includes a guide seat (51), a slide (52), and an elastic limiting rod (53); The vertical positioning plate (14) is provided with a sliding groove (52), in which two guide seats (51) are slidably connected. The two guide seats (51) are symmetrically arranged about the center face of the vertical positioning plate (14), and an elastic limiting rod (53) is connected between the two guide seats (51) and the vertical positioning plate (14).

5. The grinding device for the aluminum alloy housing of the new energy vehicle motor controller according to claim 4, characterized in that, The limiting component (6) includes a guide rail (61) and a limiting rod (62). The guide rail (61) and the limiting rod (62) are slidably connected. One end of the guide rail (61) and the limiting rod (62) are respectively fixedly connected to a guide seat (51). The transverse positioning plate (16) is provided with a slot (18). The guide rail (61) can be engaged in the slot (18).

6. The grinding device for aluminum alloy housing of new energy vehicle motor controller according to claim 5, characterized in that, The guide seat (51) is V-shaped, and the guide rail (61) and the limiting rod (62) are both fixed at the middle end of the guide seat (51).

7. The grinding device for the aluminum alloy housing of the new energy vehicle motor controller according to claim 1, characterized in that, The suction mechanism (7) includes a rubber ring (71), a rubber tube (72), and an air pump (73); The end faces of the vertical positioning plate (14) and the horizontal positioning plate (16) are provided with rubber rings (71), and the end faces of the vertical positioning plate (14) and the horizontal positioning plate (16) are provided with through holes (17). The vertical positioning plate (14) and the horizontal positioning plate (16) are connected to the air pump (73) through rubber tubes (72), and the air pump (73) is fixedly connected to the rotating frame (12).

8. The grinding device for aluminum alloy housing of new energy vehicle motor controller according to claim 6, characterized in that, A support seat (3) is fixedly provided at the middle end of the guide seat (51).

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