Motor end cover with high structural strength and processing equipment thereof

Abstract

The invention relates to the technical field of motor end cover machining, in particular to a motor end cover with high structural strength and machining equipment thereof.The motor end cover comprises a bottom plate, a rotary lifting assembly is arranged in the bottom plate and comprises a lifting disc, the lower end face of the lifting disc is fixedly connected with a fourth lead screw, and a fixing disc is arranged below the fourth lead screw; the fourth lead screw is in threaded connection with a fixing disc, the fixing disc is fixedly connected to a limiting assembly through an L-shaped support, the lower end of the fourth lead screw is fixedly connected with an output shaft of a fifth stepping motor, and the limiting assembly is arranged in the machine tool assembly. The height of the motor end cover on the lifting disc is controlled through the fifth stepping motor, so that the clamp can be clamped to the protruding edge part of the motor end cover, the motor end cover is positioned and fixed, meanwhile, the fourth lead screw is driven by the fifth stepping motor to slightly move up and down, the motor end cover deflects repeatedly, and therefore mounting lugs are driven to deflect repeatedly; the abutting arc sheet can avoid the installation lug and directly abut against the protruding edge of the motor end cover, and positioning installation is completed.

Description

Technical Field

[0001] The invention relates to the technical field of motor end cover processing, in particular to a motor end cover with high structural strength and processing equipment thereof. Background Art

[0002] The pre-treated motor end cover is placed in a CNC milling machine for milling. The milling process removes one or several layers of the material surface through the rotation of the milling tool to achieve the processing size and surface roughness requirements.

[0003] For example, Chinese patent publication number CN110690800B provides a motor end cover processing equipment, which sets a manipulator between two differential conveyor lines so that the manipulator can transfer the motor end cover to be processed on one of the differential conveyor lines to a processing assembly for processing. After the processing is completed, the manipulator transfers the processed motor end cover to another differential conveyor line. The processing assembly includes a rotating table and a processing tool magazine located above the rotating table. A tooling plate is installed on the rotating table, and a hydraulic clamp is provided on the tooling plate. The hydraulic clamp can clamp and fix the motor end cover to be processed placed on the tooling plate. However, in actual processing and production, when the robot places the motor end cover on the tooling plate, if the mounting ear of the motor end cover is on the travel path of the hydraulic clamp, the hydraulic clamp and the mounting ear will abut, while other hydraulic clamps and the protruding edge of the motor end cover will abut. This will cause the motor end cover to be unable to be positioned at the center of the tooling plate, resulting in inaccurate subsequent processing. At the same time, motor end covers of different specifications have different heights. If the motor end cover is too high, the hydraulic clamp will not be able to abut against the protruding edge of the motor end cover, thereby failing to fix the motor end cover.

[0004] In view of this, the present invention proposes a motor end cover with high structural strength and a processing device thereof, which solves the above-mentioned technical problems. Summary of the invention

[0005] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0006] A motor end cover with high structural strength and processing equipment thereof, comprising a base plate, wherein a rotating lifting assembly is arranged inside the base plate, and characterized in that the rotating lifting assembly comprises a lifting plate, a No. 4 screw rod is fixedly connected to the lower end surface of the lifting plate, a fixed plate is arranged below the No. 4 screw rod, the No. 4 screw rod and the fixed plate are threadedly connected, the fixed plate is fixedly connected to a limit assembly by an L-shaped bracket, the lower end of the No. 4 screw rod is fixedly connected to the output shaft of the No. 5 stepper motor, and the limit assembly is arranged in a machine tool assembly.

[0007] As a preferred solution of the present invention providing a motor end cover with high structural strength and its processing equipment, the machine tool assembly includes the base plate, the lower end surface of the base plate is fixedly connected to a No. 1 limit rod, the base plate is located above the bottom of the circular main frame, the No. 1 limit rod slides through the bottom of the circular main frame, the end of the base plate away from the circular main frame is fixedly connected to a No. 1 stepper motor, the output end of the No. 1 stepper motor is fixedly connected to a No. 1 screw rod, the No. 1 screw rod is located at the bottom of the base plate, and the No. 1 screw rod passes through the bottom of the circular main frame and is rotatably connected to one end of the base plate.

[0008] As a preferred solution of the present invention, a motor end cover with high structural strength and its processing equipment are provided, a No. 2 limit rod is fixedly connected to the inner wall of the circular main frame, a No. 2 screw rod is arranged on one side of the No. 2 limit rod, the No. 2 screw rod is rotatably connected to the inner wall of the circular main frame, one end of the No. 2 screw rod extends out of the circular main frame and is fixedly connected to the output shaft of the No. 2 stepper motor, a support frame is arranged below the top of the circular main frame, the No. 2 limit rod slides through the support frame, the No. 2 screw rod passes through the support frame, and the No. 2 screw rod and the support frame are threadedly connected. As a preferred solution of the present invention providing a motor end cover with high structural strength and its processing equipment, a milling assembly is arranged on the No. 2 screw rod, and the milling assembly includes the support frame, and the upper end face of the support frame is fixedly connected with a No. 3 stepper motor, and the output shaft of the No. 3 stepper motor is fixedly connected with a No. 3 screw rod, and the No. 3 screw rod passes through a connecting piece and is rotatably connected to one end of the support frame, and the No. 3 screw rod and the connecting piece are threadedly connected, and No. 3 limit rods are arranged on both sides of the No. 3 screw rod, and the No. 3 limit rods slide through the connecting piece, and the No. 3 limit rods are fixedly connected to the support frame.

[0009] As a preferred solution of the motor end cover with high structural strength and processing equipment thereof provided by the present invention, a No. 4 stepper motor is fixedly connected to the connecting member, and a milling cutter is fixedly connected to the output end of the No. 4 stepper motor.

[0010] As a preferred solution of the present invention providing a motor end cover with high structural strength and its processing equipment, the limiting assembly includes a chassis, the chassis is fixedly connected to the bottom plate, a rotating ring is arranged in the chassis, a convex ring is fixedly connected to the outer wall of the rotating ring, the convex ring is rotatably connected to the chassis, a plurality of No. 1 teeth are fixedly connected to the outer wall of the lower end of the rotating ring, a No. 3 gear is arranged on one side of the rotating ring, the No. 3 gear is driven by an internal motor, and the No. 1 teeth are meshed with the No. 3 gear.

[0011] As a preferred solution of the present invention to provide a motor end cover with high structural strength and its processing equipment, a plurality of No. 2 teeth are arranged on the outer wall of the upper end of the rotating ring, a No. 1 gear is arranged on one side of the No. 2 teeth, the No. 1 gear is rotatably connected in the chassis, the No. 2 teeth are meshed with the No. 1 gear, the upper end of the No. 1 gear is fixedly connected to the No. 2 gear through a connecting column, a slide groove is arranged on one side of the No. 2 gear, the slide groove is arranged on the upper end surface of the chassis, a sliding column is slidably connected in the slide groove, an end of the sliding column close to the lifting plate is fixedly connected with an abutting arc piece, and an end of the sliding column close to the No. 2 gear is provided with a plurality of No. 3 teeth, the No. 3 teeth are meshed with the No. 2 gear.

[0012] As a preferred solution of the present invention to provide a motor end cover with high structural strength and a processing device thereof, the abutting arc piece has resilience.

[0013] As a preferred solution of the present invention to provide a motor end cover with high structural strength and a processing device thereof, the composition of the aluminum alloy material for casting the motor end cover with high structural strength is as follows: The weight percentage of Al, Si, Fe, Cu, Mg, Mn, Cr, Zn and Ti is as follows: Si0.5-0.55%, Fe≤0.16%, Cu≤0.02%, Mg0.65-0.7%, Mn0.015-0.025%, Cr≤0.01%, Zn≤0.012%, Ti0.017-0.025%, and the balance is Al.

[0014] Beneficial effects of the present invention: (1) In the present invention, the base plate is driven to move back and forth longitudinally by stepper motor No. 1, thereby driving the motor end cover to move back and forth longitudinally, and the motor end cover is processed longitudinally in cooperation with the milling cutter. At the same time, stepper motor No. 3 is controlled to drive the connecting part to drive stepper motor No. 4 and the milling cutter to move up and down, thereby controlling the milling depth of the milling cutter. At the same time, stepper motor No. 2 is controlled to control the support frame to drive the entire milling assembly to move horizontally left and right, thereby controlling the milling cutter to perform horizontal milling.

[0015] (2) In the present invention, the height of the motor end cover on the lifting plate is controlled by a No. 5 stepper motor, so that the clamp can clamp the protruding edge of the motor end cover to complete the positioning and fixing of the motor end cover.

[0016] (3) In the present invention, the No. 4 lead screw is slightly moved up and down by the No. 5 stepper motor, so that the motor end cover is repeatedly deflected, thereby driving the mounting ear to repeatedly deflect. The abutting arc piece can avoid the mounting ear and directly abut against the protruding edge of the motor end cover to complete the positioning installation, thereby preventing the mounting ear of the motor end cover from being on the travel path of the sliding column. After the abutting arc piece and the mounting ear abut, the motor end cover cannot be positioned at the center of the lifting plate, resulting in the inability to perform subsequent milling cutter processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0018] in: Figure 1 It is a schematic diagram of the overall structure of a motor end cover with high structural strength and its processing equipment; Figure 2 for Figure 1 A schematic diagram of the structure enlargement in the middle; Figure 3 It is a schematic diagram of a motor end cover with high structural strength and the bottom connection structure of its processing equipment; Figure 4 It is a schematic diagram of a motor end cover with high structural strength and a rotating lifting component connection structure in a processing device thereof; Figure 5 for Figure 4 A magnified schematic diagram of the structure at B in the middle; Figure 6 A schematic diagram of a connection structure of a motor end cover with high structural strength and a limit assembly in its processing equipment; Figure 7 for Figure 6 A magnified schematic diagram of the structure at C in the middle; Figure 8 It is a schematic diagram of the connection structure of a motor end cover with high structural strength and a chassis, a No. 1 gear, a rotating ring and a lifting plate in a processing equipment thereof; Fig. 9 It is a schematic diagram of the state of a motor end cover with high structural strength, a sliding column and a chassis during processing in a motor end cover and a processing device thereof; In the figure: 1. Machine tool assembly; 11. Bottom plate; 12. No. 1 limit rod; 13. No. 1 stepper motor; 14. Round main frame; 15. No. 2 stepper motor; 16. No. 2 limit rod; 17. No. 2 lead screw; 18. No. 1 lead screw; 2. Milling assembly; 21. Support frame; 22. No. 3 stepper motor; 23. Connector; 24. No. 4 stepper motor; 25. Milling cutter; 26. No. 3 limit rod; 28. No. 3 screw rod; 3. Limiting assembly; 31. Chassis; 32. Rotating ring; 33. Convex ring; 34. Gear No. 1; 35. Gear No. 2; 36. Gear No. 1; 37. Gear No. 2; 38. Gear No. 3; 39. Sliding column; 310. Sliding groove; 311. Abutting arc piece; 312. Gear No. 3; 4. Rotating lifting assembly; 41. Lifting plate; 42. No. 4 screw rod; 43. Fixed plate; 44. No. 5 stepping motor; 45. L-shaped bracket. DETAILED DESCRIPTION

[0019] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Example A motor end cover with high structural strength and a processing device thereof, wherein the aluminum alloy material composition for casting the motor end cover with high structural strength is as follows: The weight percentage of Al, Si, Fe, Cu, Mg, Mn, Cr, Zn and Ti is as follows: Si0.5-0.55%, Fe≤0.16%, Cu≤0.02%, Mg0.65-0.7%, Mn0.015-0.025%, Cr≤0.01%, Zn≤0.012%, Ti0.017-0.025%, and the balance is Al.

[0021] like Figure 1-Figure 9 As shown, a rotating lifting assembly 4 is arranged in the bottom plate 11, and the rotating lifting assembly 4 includes a lifting plate 41, and a fourth screw rod 42 is fixedly connected to the lower end surface of the lifting plate 41, and a fixed plate 43 is arranged below the fourth screw rod 42, and the fourth screw rod 42 and the fixed plate 43 are threadedly connected, and the fixed plate 43 is fixedly connected to the limit assembly 3 by an L-shaped bracket 45, and the lower end of the fourth screw rod 42 is fixedly connected to the output shaft of the fifth stepping motor 44, and the limit assembly 3 is arranged in the machine tool assembly 1; The limit assembly 3 includes a chassis 31, which is fixedly connected to the bottom plate 11. A rotating ring 32 is arranged in the chassis 31. A convex ring 33 is fixedly connected to the outer wall of the rotating ring 32. The convex ring 33 is rotatably connected to the chassis 31. A plurality of first teeth 36 are fixedly connected to the outer wall of the lower end of the rotating ring 32. A third gear 312 is arranged on one side of the rotating ring 32. The third gear 312 is driven by an internal motor. The first teeth 36 are meshed with the third gear 312. A plurality of No. 2 teeth 37 are provided on the outer wall of the upper end of the rotating ring 32, a No. 1 gear 34 is provided on one side of the No. 2 teeth 37, the No. 1 gear 34 is rotatably connected to the chassis 31, the No. 2 teeth 37 are meshed with the No. 1 gear 34, the upper end of the No. 1 gear 34 is fixedly connected to the No. 2 gear 35 through a connecting column, a slide groove 310 is provided on one side of the No. 2 gear 35, the slide groove 310 is arranged on the upper end surface of the chassis 31, a sliding column 39 is slidably connected in the slide groove 310, one end of the sliding column 39 close to the lifting plate 41 is fixedly connected to an abutting arc piece 311, the abutting arc piece 311 has resilience, a plurality of No. 3 teeth 38 are provided on one end of the sliding column 39 close to the No. 2 gear 35, the No. 3 teeth 38 are meshed with the No. 2 gear 35.

[0022] In the embodiment, the motor end cap to be processed is placed on the lifting plate 41 through the conveyor line, and then the No. 5 stepper motor 44 is started to drive the No. 4 screw rod 42 to rotate. The No. 4 screw rod 42 can drive the lifting plate 41 to move up and down under the action of the fixed plate 43, and the height of the motor end cap on the lifting plate 41 is controlled by the No. 5 stepper motor 44 (such as Figure 4 As shown, one end of the motor end cover close to the lifting plate 41 has a certain fillet slope. The traditional clamp for clamping the motor end cover needs to clamp the protruding edge on the outside of the motor end cover to clamp and fix the motor end cover. If the height of the clamp is not adjusted, it will clamp on the fillet with a slope, causing the motor end cover to move upward, making it impossible to fix the motor end cover. Different motor end covers have different fillet sizes, so the motor end cover needs to be adjusted in height so that the clamp can clamp on the protruding edge of the motor end cover).

[0023] When the height adjustment of the motor end cover is completed, the internal motor drives the third gear 312 to rotate, and the third gear 312 drives the rotating ring 32 to rotate through the second tooth 37, and the rotating ring 32 rotates inside the chassis 31. When the rotating ring 32 rotates, it drives the first gear 34 to rotate through the first tooth 36, and the first gear 34 drives the second gear 35 to rotate. When the second gear 35 rotates, it drives the sliding column 39 and the abutting arc piece 311 to slide toward the center of the lifting plate 41 through the third tooth 38. At the same time, the fifth stepper motor 44 starts to drive the fourth screw rod 42 to move up and down slightly, and keep the state of moving up and down. At this time, the lifting plate 41 drives the motor end cover to deflect repeatedly (the fourth screw rod 42 has fine threads, and the slight distance of moving up and down will cause the lifting plate 41 to deflect slowly and greatly). When the sliding column 39 drives the abutting arc piece 311, the lifting plate 41 deflects repeatedly. At this time, the following two states will appear: The first one, such as Fig. 9As shown, when the motor end cover is placed on the lifting plate 41, one of the mounting ears of the motor end cover is on the travel path of the sliding column 39. When the sliding column 39 moves forward, it will drive the abutment arc piece 311 to abut against the mounting ear, while the other sliding columns 39 will abut against the protruding edge of the motor end cover. This will cause the motor end cover to not be positioned at the center of the lifting plate 41, which will cause errors in the subsequent programming and positioning processing of the milling cutter 25, resulting in tool collision and the like. The motor end cover in the present invention will deflect repeatedly at this time, thereby driving the mounting ear to deflect repeatedly, so that the abutment arc piece 311 can avoid the mounting ear and directly abut against the protruding edge of the motor end cover to complete the positioning installation.

[0024] The second type is that the mounting ears of the motor end cover are not on the travel path of the sliding column 39. At this time, the sliding column 39 drives the abutting arc piece 311 to abut against the protruding edge of the motor end cover, directly completing the positioning and fixing of the motor end cover.

[0025] like Figure 1 , Figure 3 and Figure 4 As shown, the machine tool assembly 1 includes the base plate 11, the lower end surface of the base plate 11 is fixedly connected to a limit rod 12, the base plate 11 is located above the bottom of the circular main frame 14 and the two are not in contact, the limit rod 12 slides through the bottom of the circular main frame 14, the end of the base plate 11 away from the circular main frame 14 is fixedly connected to a stepper motor 13, the output end of the stepper motor 13 is fixedly connected to a lead screw 18, the lead screw 18 is located at the bottom of the base plate 11, and the lead screw 18 passes through the bottom of the circular main frame 14 and is rotatably connected to one end of the base plate 11.

[0026] In the embodiment, after the motor end cover is positioned and fixed, the No. 1 stepper motor 13 is started to drive the No. 1 screw rod 18 to rotate. Due to the limiting effect of the No. 1 limiting rod 12, the No. 1 stepper motor 13 can drive the base plate 11 to move back and forth, and the back and forth movement of the base plate 11 drives the motor end cover to move, cooperating with the milling assembly 2 to process the motor end cover.

[0027] like Figure 1 , Figure 4 and Figure 6 As shown, a No. 2 limit rod 16 is fixedly connected to the inner wall of the circular main frame 14, a No. 2 screw rod 17 is arranged on one side of the No. 2 limit rod 16, the No. 2 screw rod 17 is rotatably connected to the inner wall of the circular main frame 14, one end of the No. 2 screw rod 17 extends out of the circular main frame 14 and is fixedly connected to the output shaft of the No. 2 stepping motor 15, a support frame 21 is arranged below the top of the circular main frame 14, the No. 2 limit rod 16 slides through the support frame 21, the No. 2 screw rod 17 passes through the support frame 21, and the No. 2 screw rod 17 and the support frame 21 are threadedly connected; The No. 2 screw rod 17 is provided with a milling assembly 2, and the milling assembly 2 includes the support frame 21, the upper end surface of the support frame 21 is fixedly connected with a No. 3 stepping motor 22, the output shaft of the No. 3 stepping motor 22 is fixedly connected with a No. 3 screw rod 28, the No. 3 screw rod 28 passes through the connecting piece 23 and is rotatably connected to one end of the support frame 21, the No. 3 screw rod 28 and the connecting piece 23 are threadedly connected, and No. 3 limiting rods 26 are provided on both sides of the No. 3 screw rod 28, the No. 3 limiting rod 26 slides through the connecting piece 23, and the No. 3 limiting rod 26 is fixedly connected to the support frame 21; A No. 4 stepping motor 24 is fixedly connected to the connecting member 23 , and a milling cutter 25 is fixedly connected to the output end of the No. 4 stepping motor 24 .

[0028] In the embodiment, after the motor end cover is positioned and fixed, the No. 4 stepper motor 24 is started to drive the milling cutter 25 to rotate, and the No. 3 stepper motor 22 is controlled to drive the No. 3 screw rod 28 to rotate. Under the action of the No. 3 limit rod 26, the connecting member 23 can drive the No. 4 stepper motor 24 and the milling cutter 25 to move up and down to control the milling depth of the milling cutter 25. At the same time, the No. 2 stepper motor 15 is controlled to drive the No. 2 screw rod 17 to rotate. Under the action of the No. 2 limit rod 16, the support frame 21 drives the milling assembly 2 to move left and right as a whole, controls the left and right milling angles of the milling cutter 25, and cooperates with the No. 1 stepper motor 13 to enable the milling cutter 25 to move and mill in the horizontal and vertical directions.

[0029] The workflow is as follows: First, the motor end cover to be processed is placed on the lifting plate 41 through the conveyor line, and then the No. 5 stepper motor 44 is started to drive the No. 4 screw rod 42 to rotate, and the No. 4 screw rod 42 drives the lifting plate 41 to move up and down. After the height adjustment of the motor end cover is completed, the internal motor drives the No. 3 gear 312 to rotate, and the No. 3 gear 312 drives the rotating ring 32 to rotate. When the rotating ring 32 rotates, it drives the No. 1 gear 34 to rotate, and the No. 1 gear 34 drives the No. 2 gear 35 to rotate. When the No. 2 gear 35 rotates, it drives the sliding column 39 and the abutting arc piece 311 to slide toward the center of the lifting plate 41 through the No. 3 teeth 38. At the same time, the No. 5 stepper motor 44 is started to drive the No. 4 screw rod 42 to move up and down slightly, and keep the state of moving up and down. At this time, the lifting plate 41 drives the motor end cover to deflect repeatedly, and the sliding column 39 drives the abutting arc piece 311 to deflect repeatedly with the lifting plate 41. Finally, the abutting arc piece 311 can avoid the installation ear and directly abut against the protruding edge of the motor end cover to complete the positioning installation. After the motor end cover is positioned and fixed, the No. 4 stepper motor 24 drives the milling cutter 25 to rotate and process the motor end cover, and the No. 1 stepper motor 13 is started to drive the No. 1 screw 18 to rotate. The No. 1 stepper motor 13 can drive the bottom plate 11 to move back and forth, thereby driving the motor end cover to move longitudinally, and cooperate with the milling cutter 25 to process the motor end cover. At the same time, the No. 3 stepper motor 22 is controlled to drive the No. 3 screw 28 to rotate, and drive the connecting piece 23 to drive the No. 4 stepper motor 24 and the milling cutter 25 to move up and down, and control the milling depth of the milling cutter 25. At the same time, the No. 2 stepper motor 15 is controlled to drive the No. 2 screw 17 to rotate, and the support frame 21 drives the milling assembly 2 as a whole to move horizontally left and right, and the milling cutter 25 is controlled to mill horizontally.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A motor end cover processing device, comprising a machine tool assembly (1), wherein the machine tool assembly (1) comprises a base plate (11), wherein a rotating lifting assembly (4) is arranged in the base plate (11), and wherein: The rotary lifting assembly (4) comprises a lifting plate (41), a fourth screw rod (42) being fixedly connected to the lower end surface of the lifting plate (41), a fixed plate (43) being arranged below the fourth screw rod (42), the fourth screw rod (42) and the fixed plate (43) being threadedly connected, the fixed plate (43) being fixedly connected to the limit assembly (3) by an L-shaped bracket (45), the lower end of the fourth screw rod (42) being fixedly connected to the output shaft of the fifth stepping motor (44), and the limit assembly (3) being arranged on the bottom plate (11) in the machine tool assembly (1).

2. The motor end cover processing equipment as described in claim 1, characterized in that: The machine tool assembly (1) comprises a base plate (11), the lower end surface of the base plate (11) being fixedly connected to a first limiting rod (12), the base plate (11) being located above the bottom of a circular main frame (14), the first limiting rod (12) slidingly passing through the bottom of the circular main frame (14), the end of the base plate (11) away from the circular main frame (14) being fixedly connected to a first stepping motor (13), the output end of the first stepping motor (13) being fixedly connected to a first screw rod (18), the first screw rod (18) being located at the bottom of the base plate (11), the first screw rod (18) passing through the bottom of the circular main frame (14) and being rotatably connected to one end of the base plate (11).

3. The motor end cover processing equipment as described in claim 2, characterized in that: A second limiting rod (16) is fixedly connected to the inner wall of the circular main frame (14); a second screw rod (17) is arranged on one side of the second limiting rod (16); the second screw rod (17) is rotatably connected to the inner wall of the circular main frame (14); one end of the second screw rod (17) extends out of the circular main frame (14) and is fixedly connected to the output shaft of the second stepping motor (15); a support frame (21) is arranged below the top of the circular main frame (14); the second limiting rod (16) slides through the support frame (21); the second screw rod (17) passes through the support frame (21); and the second screw rod (17) and the support frame (21) are threadedly connected.

4. The motor end cover processing equipment as described in claim 3, characterized in that: A milling assembly (2) is arranged on the second screw rod (17), and the milling assembly (2) comprises the support frame (21), the upper end surface of the support frame (21) is fixedly connected to a third stepping motor (22), the output shaft of the third stepping motor (22) is fixedly connected to a third screw rod (28), the third screw rod (28) passes through a connecting piece (23) and is rotatably connected to one end of the support frame (21), the third screw rod (28) and the connecting piece (23) are threadedly connected, and third limiting rods (26) are arranged on both sides of the third screw rod (28), the third limiting rod (26) slides through the connecting piece (23), and the third limiting rod (26) is fixedly connected to the support frame (21).

5. The motor end cover processing equipment as claimed in claim 4, characterized in that: A No. 4 stepping motor (24) is fixedly connected to the connecting member (23), and a milling cutter (25) is fixedly connected to the output end of the No. 4 stepping motor (24).

6. The motor end cover processing equipment as claimed in claim 5, characterized in that: The limiting assembly (3) comprises a chassis (31), the chassis (31) being fixedly connected inside the bottom plate (11), a rotating ring (32) being arranged inside the chassis (31), a convex ring (33) being fixedly connected to the outer wall of the rotating ring (32), the convex ring (33) being rotatably connected to the chassis (31), a plurality of first teeth (36) being fixedly connected to the outer wall of the lower end of the rotating ring (32), a third gear (312) being arranged on one side of the rotating ring (32), the third gear (312) being driven by an internal motor, the first teeth (36) being meshed with the third gear (312).

7. The motor end cover processing equipment as claimed in claim 6, characterized in that: A plurality of No. 2 teeth (37) are arranged on the outer wall of the upper end of the rotating ring (32); a No. 1 gear (34) is arranged on one side of the No. 2 teeth (37); the No. 1 gear (34) is rotatably connected in the chassis (31); the No. 2 teeth (37) mesh with the No. 1 gear (34); the upper end of the No. 1 gear (34) is fixedly connected to the No. 2 gear (35) via a connecting column; a slide groove (310) is arranged on one side of the No. 2 gear (35); the slide groove (310) is arranged on the upper end surface of the chassis (31); a sliding column (39) is slidably connected in the slide groove (310); an end of the sliding column (39) close to the lifting plate (41) is fixedly connected to an abutting arc piece (311); an end of the sliding column (39) close to the No. 2 gear (35) is provided with a plurality of No. 3 teeth (38); the No. 3 teeth (38) mesh with the No. 2 gear (35).

8. The motor end cover processing equipment as claimed in claim 7, characterized in that: The abutting arc piece (311) has resilience.

9. The high-strength motor end cover processed by the motor end cover processing equipment as claimed in claim 8 comprises an aluminum alloy material for casting the motor end cover, characterized in that: The aluminum alloy material is as follows: The weight percentage of Al, Si, Fe, Cu, Mg, Mn, Cr, Zn and Ti is as follows: Si0.5-0.55%, Fe≤0.16%, Cu≤0.02%, Mg0.65-0.7%, Mn0.015-0.025%, Cr≤0.01%, Zn≤0.012%, Ti0.017-0.025%, and the balance is Al.

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