A polishing device for the outer circle of a motor stator

Abstract

The application discloses a polishing device for the outer circle of a motor stator and relates to the technical field of motor stator machining. The device has the advantages of being capable of polishing the outer circle and the inner circle of the stator. The technical scheme is as follows: the device comprises a workbench, a placing seat, a rotating disc, a rotating mechanism, two supporting plates, a sliding seat, a moving mechanism, a transfer centering and pressing mechanism and a polishing mechanism. The placing seat is arranged on the workbench and is used for placing the stator to be polished. The rotating disc is rotationally connected to the workbench through the rotating mechanism. The two supporting plates are fixed to the workbench. The placing seat and the rotating disc are located between the two supporting plates. The sliding seat is horizontally slidably connected between the two supporting plates through the moving mechanism. The transfer centering and pressing mechanism is arranged on the sliding seat and is used for centering the stator on the placing seat, adsorbing the centered stator and transferring the adsorbed stator to the rotating disc to be pressed. The polishing mechanism is arranged on the workbench and is used for polishing the inner wall and the outer wall of the stator.

Description

Technical Field

[0001] This invention relates to the field of motor stator processing technology, specifically to a polishing device for the outer diameter of a motor stator. Background Technology

[0002] As the core stationary component of a motor, the stator's function is to generate a main magnetic field through excitation, driving the rotor to achieve rotational motion. The stator typically consists of three main components: the frame, the stator core, and the stator windings. Its machining quality directly affects the motor's efficiency and operational stability. Therefore, during manufacturing, the stator requires high-precision polishing and grinding to eliminate surface burrs, oxide layers, and machining marks.

[0003] Currently, Chinese patent application number CN202220446215.6 discloses a polishing device for processing generator stators, including a base, a fixed seat fixed above the base, a rotating seat for placing generator stators rotatably connected above the fixed seat, a polishing component for polishing generator stators on one side of the rotating seat, a fixing component for fixing generator stators above the rotating seat, a rotating component for driving generator stators to rotate inside the fixed seat, a moving component for moving the polishing component on the side away from the rotating seat, and an adjusting component for adjusting the height of the polishing component on the side away from the polishing component.

[0004] In the aforementioned prior art, the stator is internally clamped by a fixing component positioned above the rotating seat, fully exposing the outer wall of the stator, and then polished using a polishing component. However, while this internally clamped structure is beneficial for outer wall processing, it inevitably occupies space within the stator cavity, making it impossible to polish the inner surface of the stator. Therefore, the applicant has developed a new technical solution to solve the aforementioned technical problems during actual production. Summary of the Invention

[0005] To address the aforementioned technical shortcomings, the present invention aims to provide a polishing device for the outer diameter of an electric motor stator, which has the advantage of being able to polish both the outer and inner surfaces of the stator.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] This invention provides a polishing device for the outer diameter of an electric motor stator, comprising: The workbench is equipped with a holder for placing the stator to be polished. A rotating disk is rotatably connected to the worktable via a rotating mechanism, which drives the rotating disk to rotate around its own axis. Two support plates are arranged opposite each other on the worktable, and the rotary disk and the placement seat are both located between the two support plates; A slide block is horizontally slidably connected between the two support plates via a moving mechanism, which is used to drive the slide block to reciprocate between the placement seat and the rotating disk. A transfer centering and pressing mechanism is provided on the slide block, used to center the stator on the placement seat, adsorb and transfer the centered stator to the rotating disk, and press the stator against the upper surface of the rotating disk; The polishing mechanism, set on the worktable, is used to polish the inner and outer walls of the stator pressed on the rotating disk.

[0008] By adopting the above technical solution, the polishing device integrates the centering, adsorption transfer and clamping processes of the stator into the same transfer, centering and clamping mechanism, reducing intermediate transfer links and improving clamping efficiency and positioning consistency. At the same time, the centering action is completed on the placement seat, and the centering reference is located on the outer ring of the top of the stator, reducing the impact of surface defects such as casting burrs and paint drips on the outer wall of the stator on the centering accuracy. With the inner and outer double-sided polishing components, the polishing of the inner and outer walls of the stator can be completed simultaneously after one clamping without the need for secondary clamping or flipping, thus improving processing efficiency and polishing accuracy.

[0009] Preferably, the transfer centering and clamping mechanism includes: A through hole is formed at the top of the slide block; A movable cylinder is vertically arranged. The bottom end of the movable cylinder passes through a through hole and is coaxially rotatably connected to a rotating column. The slide is provided with a power source for pushing the movable cylinder to rise and fall vertically. A sliding cylinder is coaxially slidably sleeved on the outer wall of the rotating column, and a push ring is coaxially rotatably connected to the outer wall of the sliding cylinder. The sliding block is provided with a second power source to push the push ring to move vertically. At least three swing arms, one end of each swing arm is hinged to the bottom of the outer wall of the rotating column, and each swing arm is evenly distributed along the circumference of the rotating column; An adjusting rod is hinged between the upper surface of each of the swing arms and the outer wall of the slide cylinder; A clamping block is provided on the bottom surface of each of the swing arms, and a vacuum suction cup is provided on the bottom surface of the clamping block; When the slide cylinder is raised or lowered, the adjusting rod drives each of the swing arms to swing synchronously, so that the swing arms switch between a conical centering state and a horizontal pressing state.

[0010] Preferably, the clamping block has a vacuum chamber inside, the vacuum suction cup is connected to the vacuum chamber, the rotating column has a gas collecting chamber inside, and the rotating column has a rotary joint located inside the moving cylinder and connected to the gas collecting chamber. The vacuum chamber in each clamping block is connected to the gas collecting chamber through a diverter pipe, and the diverter pipe is a flexible hose.

[0011] Preferably, the rotating disk is provided with a plurality of receiving blocks, the number of which is the same as that of the pressing blocks, and each receiving block is evenly distributed along the circumference of the rotating disk.

[0012] Preferably, each of the receiving blocks is slidably connected to the rotating disk along the radial direction of the rotating disk, and each of the receiving blocks is provided with a limiting member one for limiting the sliding of the receiving block. The pressing block is slidably connected to the swing rod along the length direction of the swing rod, and the swing rod is provided with a limiting member two for limiting the sliding of the pressing block.

[0013] Preferably, the limiting member includes a protruding plate disposed below one side of the receiving block, and a limiting bolt is threadedly connected to the protruding plate, the bottom end of the limiting bolt passing through the protruding plate and abutting against the top end of the rotating disk; The second limiting member has the same structure as the first limiting member. At this time, the protruding plate is set above one side of the pressing block, and the top of the limiting bolt passes through the protruding plate and abuts against the bottom of the swing rod. The locking directions of the first limiting member and the second limiting member are opposite.

[0014] Preferably, the rotating mechanism includes a fixed ring seat disposed on the worktable, the rotating disk is coaxially rotatably connected to the top of the fixed ring seat, the bottom end of the rotating disk is coaxially provided with a gear ring, the fixed ring seat is located inside the gear ring, the worktable is provided with a drive motor, and one end of the rotating shaft of the drive motor is provided with a gear that meshes with the gear ring, both the gear and the gear ring are located below the rotating disk.

[0015] Preferably, the moving mechanism includes two guide rails horizontally disposed between two support plates, and the two guide rails are disposed opposite to each other. The slide block is horizontally slidably connected to the two guide rails along the length direction of the guide rails. The moving cylinder is located between the two guide rails. One of the guide rails is provided with a power source for driving the slide block to reciprocate between the placement seat and the rotating disk along the length direction of the guide rail.

[0016] Preferably, the two guide rails are provided with baffles, and when the slide is located directly above the rotating disk and the axis of the rotating column coincides with that of the rotating disk, the slide abuts against one side of the baffle.

[0017] Preferably, the polishing mechanism includes an outer polishing component and an inner polishing component, wherein the outer polishing component is used to polish the outer side of the stator, and the inner polishing component is used to polish the inner side of the stator; The outer polishing assembly includes a vertically arranged upright plate and a horizontally arranged suspension plate on one side of the upright plate. The upright plate and the suspension plate form an inverted L-shaped mounting frame. The worktable is provided with a displacement mechanism connected to the mounting frame. The displacement mechanism is used to drive the mounting frame to move horizontally and vertically. The side of the suspension plate away from the upright plate is provided with two vertically distributed fixed plates. A polishing wheel is rotatably connected between the two fixed plates. A drive shaft is rotatably connected to the suspension plate. The drive shaft and the polishing wheel are connected by a chain assembly. The upright plate is provided with a polishing motor for driving the drive shaft to rotate. The inner polishing assembly has the same structure as the outer polishing assembly. At this time, the top of the vertical plate, the suspension plate and the polishing wheel of the inner polishing assembly all pass through the fixed ring seat and are located above the rotating disk, for polishing the inner wall of the stator.

[0018] The beneficial effects of this invention are as follows: 1. By setting up a transfer centering and clamping mechanism, the centering, adsorption transfer and clamping processes of the stator are integrated into the same mechanism, reducing intermediate transfer links and auxiliary time, and improving clamping efficiency and positioning consistency.

[0019] 2. The centering action is completed on the placement seat, and the centering reference is located on the outer ring of the top of the stator, which reduces the impact of surface defects such as casting burrs and paint drips on the outer wall of the stator on the centering accuracy and improves the reliability of centering.

[0020] 3. Through the coordinated operation of the swing arm, slide cylinder and adjusting rod, the swing arm can switch between the conical centering state and the horizontal pressing state. One set of mechanisms can complete the two actions of centering and pressing. The structure is compact and the control is simple. During the centering and pressing process, each time the first power source works, the second power source works synchronously, so that the swing arm maintains the conical centering state or the horizontal pressing state during the overall lifting process.

[0021] 4. The rotating joint keeps the external air tube stationary while the rotating column is rotating, reducing the problem of air tube entanglement. At the same time, the shunt tube is a flexible tube to adapt to the deformation requirements when the swing arm swings.

[0022] 5. The bidirectional adjustability of the receiving block and the clamping block allows the device to adapt to stators of different diameters, making it highly versatile. Combined with the locking structure of the convex plate and the limiting bolt, the adjustment is convenient and the locking is reliable. Moreover, the locking directions of the first limiting part and the second limiting part are opposite, which can adapt to the different force directions of the receiving block and the clamping block respectively.

[0023] 6. By setting up external and internal polishing components, the polishing of the stator's outer and inner walls can be completed simultaneously after one clamping, eliminating the need for secondary clamping or flipping, thus improving processing efficiency and polishing accuracy.

[0024] 7. By setting a baffle, when the slide moves to the point where the axis of the rotating column coincides with the axis of the rotating disk, it abuts against the baffle, realizing the hard limit of the slide and improving the coaxiality consistency between the stator and the rotating disk during each transfer. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention.

[0027] Figure 2 This is a schematic diagram illustrating the structure of the clamping block according to an embodiment of the present invention.

[0028] Figure 3 This is a schematic diagram illustrating the structure of the gas collection chamber in an embodiment of the present invention.

[0029] Figure 4 This is a schematic diagram illustrating the structure of the pendulum rod according to an embodiment of the present invention.

[0030] Figure 5 This is a schematic diagram illustrating the structure of the rotating disk according to an embodiment of the present invention.

[0031] Figure 6 This is a schematic diagram illustrating the structure of the fixed ring seat according to an embodiment of the present invention.

[0032] Figure 7 for Figure 5 Enlarged structural diagram of section B.

[0033] Figure 8 for Figure 4 Enlarged structural diagram of section A in the middle.

[0034] Figure 9 This is a schematic diagram illustrating the structure of the mounting bracket according to an embodiment of the present invention.

[0035] Explanation of reference numerals in the attached figures: In the diagram: 1. Workbench; 2. Placement seat; 3. Fixed ring seat; 31. Rotary disk; 311. Gear ring; 32. Receiving block; 33. Drive motor; 331. Gear; 4. Support plate; 41. Guide rail plate; 42. Power source three; 43. Baffle; 5. Slide seat; 51. Through hole; 52. Moving cylinder; 521. Rotating column; 522. Slide cylinder; 523. Push ring; 524. Air collection chamber; 525. Rotary joint; 53. Power 54. Power Source 2; 55. Swing Arm; 551. Clamping Block; 552. Vacuum Suction Cup; 553. Vacuum Chamber; 554. Diverter Pipe; 56. Adjusting Rod; 6. Protruding Plate; 61. Limiting Bolt; 7. Mounting Bracket; 71. Vertical Plate; 72. Suspension Plate; 721. Fixing Plate; 722. Polishing Wheel; 723. Drive Shaft; 724. Chain Assembly; 73. Displacement Mechanism; 74. Polishing Motor; 75. Cover; 8. Stator. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0038] Example 1 A polishing device for the outer diameter of an electric motor stator, such as Figure 1As shown, the system includes a worktable 1, a rotary disk 31, a slide 5, a polishing mechanism, a transfer centering and pressing mechanism, and two support plates 4. A placement seat 2 for placing the stator 8 to be polished is fixedly installed on the worktable 1. The rotary disk 31 is rotatably connected to the worktable 1 through a rotating mechanism, which drives the rotary disk 31 to rotate around its own axis. The two support plates 4 are vertically fixed to the worktable 1, with the rotary disk 31 and the placement seat 2 located between the two support plates 4. The slide 5 is horizontally slidably connected between the two support plates 4 through a moving mechanism, which drives the slide 5 to reciprocate between the placement seat 2 and the rotary disk 31. The transfer centering and pressing mechanism is installed on the slide 5 and is used to center the stator 8 on the placement seat 2, adsorb and transfer the centered stator 8 to the rotary disk 31, and press the stator 8 onto the upper surface of the rotary disk 31. The polishing mechanism is installed on the worktable 1 and is used to polish the inner and outer walls of the stator 8 pressed onto the rotary disk 31.

[0039] like Figure 1 As shown, the stator 8 to be polished is placed on the placement seat 2. Then, the transfer centering and pressing mechanism centers the stator 8 on the placement seat 2. After centering, the transfer centering and pressing mechanism adsorbs and lifts the stator 8. The slide 5 moves horizontally from the position of the placement seat 2 to directly above the rotating disk 31 between the two support plates 4 under the drive of the moving mechanism. The transfer centering and pressing mechanism then places the stator 8 on the rotating disk 31 and presses it. Finally, the rotating mechanism drives the rotating disk 31 to rotate around its own axis. The polishing mechanism polishes the inner and outer walls of the stator 8 that rotates synchronously with the rotating disk 31. Since the three actions of centering, adsorption transfer, and clamping are completed sequentially by the same transfer centering and clamping mechanism, after the stator 8 is centered on the placement seat 2, its coaxial relationship with the transfer centering and clamping mechanism remains unchanged during the subsequent transfer process. When the slide 5 moves to directly above the rotating disk 31 and places the stator 8 on the rotating disk 31, the axis of the stator 8 automatically coincides with the axis of the rotating disk 31. There is no need to perform secondary centering adjustment on the rotating disk 31, which reduces the introduction of intermediate transmission links and positioning errors, and improves clamping efficiency and positioning consistency. At the same time, the centering action is completed on the placement seat 2, and the centering reference is located on the outer ring of the top of the stator 8, which reduces the impact of surface defects such as casting burrs and paint drips on the outer wall of the stator 8 on the centering accuracy.

[0040] like Figures 1 to 4As shown, the transfer centering and clamping mechanism includes a movable cylinder 52, a slide cylinder 522, an adjusting rod 56, a clamping block 551, and at least three swing rods 55 (preferably four in this embodiment). A through hole 51 is provided at the top of the slide block 5. The movable cylinder 52 is vertically arranged, and its bottom end passes through the through hole 51 and is coaxially rotatably connected to a rotating column 521. The slide block 5 is provided with a power source 53 for pushing the movable cylinder 52 vertically up and down. The slide cylinder 522 is coaxially slidably sleeved on the outer wall of the rotating column 521, and a push ring 523 is coaxially rotatably connected to the outer wall of the slide cylinder 522. The slide block 5 is provided with a mechanism for pushing the push ring 523 vertically. Power source 2 54, one end of each swing rod 55 is hinged to the bottom of the outer wall of the rotating column 521, and the other end extends outward. Each swing rod 55 is evenly distributed along the circumference of the rotating column 521. Adjusting rod 56 is hinged between the upper surface of each swing rod 55 and the outer wall of the slide cylinder 522. Pressing block 551 is set on the bottom surface of each swing rod 55, and vacuum suction cup 552 is provided on the bottom surface of pressing block 551. Power source 1 53 and power source 2 54 can be cylinders, hydraulic cylinders or electric cylinders. When the slide cylinder 522 is raised and lowered, the adjusting rod 56 drives each swing rod 55 to swing synchronously, so that the swing rod 55 switches between the conical centering state and the horizontal pressing state.

[0041] like Figures 1 to 4 As shown, in the initial state, the second power source 54 drives the push ring 523 to descend, and the push ring 523 drives the slide cylinder 522 to slide downward along the outer wall of the rotating column 521. The slide cylinder 522 pulls each swing rod 55 to swing downward around the hinge axis through the adjusting rod 56, so that the end of each swing rod 55 away from the rotating column 521 tilts downward, and each swing rod 55 is distributed in a conical shape, that is, in a conical centering state. After the rocker arm 55 is in the conical centering state, power source 2 54 and power source 1 53 work simultaneously. Power source 1 53 drives the moving cylinder 52 to descend vertically. The moving cylinder 52 drives the rotating column 521 and each rocker arm 55 to descend as a whole. During this process, the push ring 523, the slide cylinder 522, the adjusting rod 56, and the rocker arm 55 follow the moving cylinder 52 and the rotating column 521 to descend synchronously through power source 2 54, maintaining the conical angle of the rocker arm 55. As the rotating column 521 descends, the lower surface of each inclined rocker arm 55 contacts the outer edge of the top ring of the stator 8. The guide effect of the conical inclined surface is used to straighten the stator 8, so that the axis of the stator 8 coincides with the axis of the rotating column 521, completing the centering. During the centering process of the stator 8, the clamping block 551 is always located above the stator 8 and does not contact the stator 8. After centering is completed, power source 2 54 drives push ring 523 to rise. Push ring 523 drives slide cylinder 522 to slide upward along the outer wall of rotating column 521. Slide cylinder 522 pushes each swing rod 55 to swing upward through adjusting rod 56, so that the swing rod 55 separates from stator 8 until each swing rod 55 swings to a horizontal state, so that each swing rod 55 can switch from the conical centering state to the horizontal state. At this time, the vacuum suction cup 552 on the bottom surface of the pressing block 551 on each swing rod 55 is directly opposite the upper end surface of stator 8. After the swing arm 55 is in a horizontal state, the power source 1 53 drives the moving cylinder 52 to descend again until each vacuum suction cup 552 contacts and presses against the upper end face of the stator 8. During this process, the power source 2 54 works to maintain the horizontal state of the swing arm 55. Then, the upper end face of the stator 8 is attracted by the vacuum suction cup 552. The power sources 1 53 and 2 54 work. The power source 1 53 drives the moving cylinder 52 to rise, and the power source 2 54 maintains the horizontal state of the swing arm 55, lifting the stator 8 away from the placement seat 2. Then, the slide 5 moves to directly above the rotating disk 31. Finally, the power sources 1 53 and 2 54 work. The power source 1 53 drives the moving cylinder 52 to descend, and the power source 2 54 maintains the horizontal state of the swing arm 55, pressing the stator 8 firmly onto the rotating disk 31. During the centering and clamping process described above, each time power source 1 53 works, power source 2 54 needs to work synchronously to ensure that the swing arm 55 remains in a horizontal or conical centering state during the overall lifting and lowering process. During the centering process, the contact position between the swing arm 55 and the stator 8 is the outer ring of the top of the stator 8, and the centering reference avoids the outer wall surface of the stator 8.

[0042] like Figures 2 to 4 As shown, the clamping block 551 has a vacuum chamber 553 inside, and the vacuum suction cup 552 is connected to the vacuum chamber 553. The rotating column 521 has a gas collecting chamber 524 inside, and the rotating column 521 has a rotary joint 525 located inside the moving cylinder 52 and connected to the gas collecting chamber 524. The vacuum chamber 553 in each clamping block 551 is connected to the gas collecting chamber 524 through a diverter pipe 554. The diverter pipe 554 is a flexible tube (such as a rubber tube or a polyurethane tube) that can bend and deform with the swing of the swing rod 55. By connecting the rotary joint 525 to the external air tube, the negative pressure generated by the air tube enters the gas collecting chamber 524 through the rotary joint 525, and then enters the vacuum chamber 553 of each clamping block 551 through each diverter pipe 554, and finally is transmitted to each vacuum suction cup 552. The rotary joint 525 can keep the external air tube stationary when the rotating column 521 rotates, reducing the occurrence of the external air tube getting tangled with the rotating column 521.

[0043] Example 2 Based on Example 1, such as Figure 5 and Figure 7As shown, a plurality of receiving blocks 32 are evenly distributed circumferentially on the upper surface of the rotating disk 31 (the number of receiving blocks 32 is the same as the number of pressing blocks 551, which is four in this embodiment). Each receiving block 32 is slidably connected to the rotating disk 31 radially. Specifically, four radially extending T-shaped grooves are provided on the upper surface of the rotating disk 31. The bottom end of each receiving block 32 is provided with a T-shaped slider that matches the T-shaped groove. The receiving block 32 is slidably embedded in the T-shaped groove through the T-shaped slider, and can slide freely in the radial direction but cannot be stopped. After detaching from the rotating disk 31, each receiving block 32 is provided with a limiting element to limit the sliding position of the receiving block 32 in the radial direction. The limiting element includes a protruding plate 6 and a limiting bolt 61. The protruding plate 6 is fixedly installed below one side of the receiving block 32 and extends outward in the horizontal direction. The limiting bolt 61 is threadedly connected to the protruding plate 6. The bottom end of the limiting bolt 61 passes through the protruding plate 6 and abuts against the top end of the rotating disk 31. The receiving block 32 is fixed to the rotating disk 31 by the friction between the bottom end of the limiting bolt 61 and the upper end surface of the rotating disk 31.

[0044] like Figure 4 As shown, the clamping block 551 is slidably connected to the bottom surface of the swing rod 55 along the length direction of the swing rod 55. Specifically, a T-shaped slide is provided on the bottom surface of the swing rod 55 along its length direction, and a T-shaped sliding plate adapted to the T-shaped slide is provided at the top of the clamping block 551. The clamping block 551 is slidably embedded in the T-shaped slide through the T-shaped sliding plate, and can slide freely in the length direction of the swing rod 55 without detaching from the swing rod 55. Each clamping block 551 is provided with a second limiting member to limit the sliding position of the clamping block 551 in the length direction of the rocker arm 55. The second limiting member has the same structure as the first limiting member, such as... Figure 7 and Figure 8 The difference lies in the opposite installation direction. Specifically, the protruding plate 6 is fixedly set above one side of the clamping block 551. The top of the limiting bolt 61 passes through the protruding plate 6 and abuts against the bottom surface of the swing rod 55. The clamping block 551 is fixed on the swing rod 55 by the friction between the top of the limiting bolt 61 and the bottom surface of the swing rod 55. Since the receiving block 32 can slide and adjust radially along the rotating disk 31 and the clamping block 551 can slide and adjust along the length of the swing rod 55, the two can be used together to make the device adaptable to stators 8 of different diameters. The receiving block 32 prevents the rotating disk 31 from contacting the stator 8, and the clamping block 551 prevents the horizontally clamped swing rod 55 from contacting the stator 8. Thus, clearance space is formed between the upper end face of the stator 8 and the swing rod 55, and between the lower end face of the stator 8 and the rotating disk 31. This reduces the obstruction of the polishing wheel 722 in the polishing mechanism by the rotating disk 31 and the swing rod 55 when polishing the outer and inner walls of the stator 8.

[0045] Example 3 Based on Example 2, such as Figure 6As shown, the rotating mechanism includes a fixed ring seat 3 mounted on the worktable 1. The fixed ring seat 3 has a circular ring structure. The rotating disk 31 is coaxially rotatably connected to the top of the fixed ring seat 3. The bottom end of the rotating disk 31 is coaxially provided with a gear ring 311. The fixed ring seat 3 is located inside the gear ring 311. The worktable 1 is provided with a drive motor 33, and one end of the rotating shaft of the drive motor 33 is provided with a gear 331 that meshes with the gear ring 311. Both the gear 331 and the gear ring 311 are located below the rotating disk 31. When the drive motor 33 is started, its output shaft drives the gear 331 to rotate. The gear 331 transmits power to the gear ring 311 through meshing with the gear ring 311. The gear ring 311 drives the rotating disk 31 to rotate around its own axis. Since both the gear ring 311 and the gear 331 are located below the rotating disk 31, the entry of debris is reduced.

[0046] like Figure 1 As shown, the moving mechanism includes two guide rails 41 horizontally arranged between two support plates 4, with the two guide rails 41 facing each other. The slide 5 slides horizontally along the length of the guide rails 41 and is connected to the two guide rails 41. The moving cylinder 52 is located between the two guide rails 41. One of the guide rails 41 is equipped with a power source 3 42, which drives the slide 5 to reciprocate between the placement seat 2 and the rotating disk 31 along the length of the guide rail 41. The power source 3 42 can be a linear motor or a motor screw mechanism. The two guide rails 41 are equipped with baffles 43. When the slide 5 is located directly above the rotating disk 31 and the axis of the rotating column 521 coincides with that of the rotating disk 31, the slide 5 abuts against one side of the baffle 43. The baffle 43 limits the slide 5 so that it stops at the same position every time it moves directly above the rotating disk 31, so that the coaxiality of the stator 8 and the rotating disk 31 is consistent during each transfer. This eliminates the need to rely on position sensors or servo systems for repeated positioning accuracy, making the positioning reliable and cost-effective.

[0047] like Figure 1 As shown, the polishing mechanism includes an outer polishing assembly and an inner polishing assembly. The outer polishing assembly is used to polish the outer side of the stator 8, and the inner polishing assembly is used to polish the inner side of the stator 8. Figure 5 and Figure 9The outer polishing assembly includes a vertically arranged upright plate 71 and a horizontally arranged suspension plate 72 on one side of the upright plate 71. The upright plate 71 and the suspension plate 72 form an inverted L-shaped mounting frame 7. The worktable 1 is provided with a displacement mechanism 73 connected to the mounting frame 7. The displacement mechanism 73 is used to drive the mounting frame 7 to move horizontally and vertically. The side of the suspension plate 72 away from the upright plate 71 is provided with two vertically distributed fixed plates 721. A polishing wheel 722 is rotatably connected between the two fixed plates 721. A drive shaft 723 is rotatably connected to the suspension plate 72. The drive shaft 723 and the polishing wheel 722 are connected by a chain assembly 724. The upright plate 71 is provided with a polishing motor 74 for driving the drive shaft 723 to rotate. The suspension plate 72 is provided with a cover 75. The chain assembly 724 is located in the cover 75 to reduce the entry of debris into the chain assembly 724 and affect its operation. The inner polishing assembly has the same structure as the outer polishing assembly. At this time, the top of the vertical plate 71, the suspension plate 72 and the polishing wheel 722 of the inner polishing assembly all pass through the fixed ring seat 3 and are located above the rotating disk 31, for polishing the inner wall of the stator 8.

[0048] like Figure 1 and Figure 5 and Figure 9 As shown, after the stator 8 is pressed onto the rotating disk 31, the top of the vertical plate 71 of the inner polishing assembly, the suspension plate 72 and the polishing wheel 722 are all located inside the stator 8. The rotating mechanism drives the rotating disk 31 to rotate the stator 8 around its own axis. The displacement mechanism 73 of the outer polishing assembly drives the mounting bracket 7 to move, so that the polishing wheel 722 at one end of the suspension plate 72 approaches the outer wall of the stator 8 and contacts the outer wall. The polishing motor 74 drives the polishing wheel 722 to rotate through the drive shaft 723 and the chain assembly 724 to polish the outer wall. At the same time, the displacement mechanism 73 of the inner polishing component drives the mounting bracket 7 to move, so that the polishing wheel 722 at one end of the suspension plate 72 approaches and contacts the inner wall of the stator 8. The polishing motor 74 drives the polishing wheel 722 to rotate through the drive shaft 723 and the chain assembly 724 to polish the inner wall. The outer polishing assembly and the inner polishing assembly have the same structure. The displacement mechanism 73 can drive the mounting frame 7 to move horizontally and vertically, so that the polishing wheel 722 can move closer to or away from the surface of the stator 8. At the same time, the position of the polishing wheel 722 in the height direction of the stator 8 can be adjusted to achieve full-process polishing from top to bottom. The outer polishing assembly and the inner polishing assembly can work at the same time, and complete the synchronous polishing of the inner and outer walls in one clamping.

[0049] The displacement mechanism 73 can adopt a conventional two-dimensional or three-dimensional moving platform structure in the art (such as a Z-axis horizontal linear module and a Y-axis vertical linear module, with the mounting bracket 7 mounted on the slider of the Y-axis vertical linear module to achieve position adjustment). The specific structural form is diverse and can be selected by those skilled in the art according to actual needs. This application will not elaborate on it here.

[0050] The chain assembly 724 is an existing structure, and will not be described in detail here.

[0051] The working process of this device is as follows: Step 1: Initial State In the initial state, the slide block 5 is located directly above the placement seat 2. The second power source 54 drives the push ring 523 to descend. The push ring 523 drives the slide cylinder 522 to slide downward along the outer wall of the rotating column 521. The slide cylinder 522 pulls each swing rod 55 to swing downward around the hinge axis through the adjusting rod 56, so that the end of each swing rod 55 away from the rotating column 521 tilts downward. The entire swing rod 55 is distributed in a conical shape, that is, in a conical centering state.

[0052] Step Two: Calm Your Mind After the rocker arm 55 is in the conical centering state, power source two 54 and power source one 53 work simultaneously. Power source one 53 drives the moving cylinder 52 to descend vertically. The moving cylinder 52 drives the rotating column 521 and each rocker arm 55 to descend as a whole. During this process, the push ring 523, the slide cylinder 522, the adjusting rod 56, and the rocker arm 55 descend synchronously with the moving cylinder 52 and the rotating column 521 through power source two 54, maintaining the conical angle of the rocker arm 55. As the rotating column 521 descends, the lower surface of each inclined rocker arm 55 contacts the outer edge of the top ring of the stator 8. The guide effect of the conical inclined surface is used to straighten the stator 8, so that the axis of the stator 8 coincides with the axis of the rotating column 521, completing the centering. During the centering process of the stator 8, the clamping block 551 is always located above the stator 8 and does not contact the stator 8.

[0053] Step 3: Switch the lever to the horizontal position at 55 degrees. After centering is completed, power source 2 54 drives push ring 523 to rise. Push ring 523 drives slide cylinder 522 to slide upward along the outer wall of rotating column 521. Slide cylinder 522 pushes each swing rod 55 to swing upward through adjusting rod 56, so that the swing rod 55 separates from stator 8 until each swing rod 55 swings to a horizontal state, so that each swing rod 55 switches from the conical centering state to the horizontal state. At this time, the vacuum suction cup 552 on the bottom surface of the pressing block 551 on each swing rod 55 is directly opposite the upper end surface of stator 8.

[0054] Step 4: Adsorption of stator 8 After the swing arm 55 is in a horizontal state, the power source 1 53 drives the moving cylinder 52 to descend again until each vacuum suction cup 552 contacts and presses against the upper end face of the stator 8. During this process, the power source 2 54 works to maintain the horizontal state of the swing arm 55. The negative pressure generated by the external air pipe enters the gas collecting chamber 524 through the rotary joint 525, and then enters the vacuum chamber 553 of each pressing block 551 through each diverter pipe 554, and finally is transmitted to each vacuum suction cup 552, which adsorbs the upper end face of the stator 8.

[0055] Step 5: Transfer stator 8 to rotary disk 31 After the vacuum suction cup 552 adsorbs the upper surface of the stator 8, the power source 1 53 and the power source 2 54 work simultaneously. The power source 1 53 drives the moving cylinder 52 to rise, and the power source 2 54 maintains the horizontal state of the swing arm 55, lifting the stator 8 away from the placement seat 2. Subsequently, the power source 3 42 drives the slide 5 to move horizontally along the two guide rails 41 from the position of the placement seat 2 to directly above the rotating disk 31. When the slide 5 moves to abut against the baffle 43, the axis of the rotating column 521 coincides with the axis of the rotating disk 31, and the slide 5 stops moving.

[0056] Step 6: Place and tighten the stator 8 After the slide block 5 moves to directly above the rotating disk 31, power source 1 53 and power source 2 54 work simultaneously. Power source 1 53 drives the moving cylinder 52 to descend, while power source 2 54 maintains the horizontal state of the swing arm 55, coaxially pressing the stator 8 onto the receiving block 32 of the rotating disk 31. During this process, the rotating disk 31 contacts the lower end face of the stator 8 through the receiving block 32, but the rotating disk 31 itself does not directly contact the stator 8. The swing arm 55 contacts the upper end face of the stator 8 through the pressing block 551, and the horizontal swing arm 55 itself does not directly contact the stator 8.

[0057] Step 7: Polishing After the stator 8 is pressed onto the rotating disk 31, the drive motor 33 is started. Its output shaft drives the gear 331 to rotate. The gear 331 transmits power to the gear ring 311 through meshing with the gear ring 311. The gear ring 311 drives the rotating disk 31 to rotate around its own axis, and the stator 8 rotates synchronously with the rotating disk 31. The displacement mechanism 73 of the outer polishing assembly drives the mounting bracket 7 to move, so that the polishing wheel 722 at one end of the suspension plate 72 approaches and contacts the outer wall of the stator 8. The polishing motor 74 drives the polishing wheel 722 to rotate through the drive shaft 723 and the chain assembly 724 to polish the outer wall. At the same time, the displacement mechanism 73 of the inner polishing component drives the mounting bracket 7 to move, so that the polishing wheel 722 at one end of the suspension plate 72 approaches and contacts the inner wall of the stator 8. The polishing motor 74 drives the polishing wheel 722 to rotate through the drive shaft 723 and the chain assembly 724 to polish the inner wall. The outer polishing assembly and the inner polishing assembly can work simultaneously to complete the synchronous polishing of the inner and outer walls in one clamping. During the polishing process, the rotating column 521 rotates synchronously with the rotating disk 31, and the rotating joint 525 keeps the external air tube stationary, reducing the entanglement of the external air tube.

[0058] Step 8: Material preparation After polishing is completed, the drive motor 33 is stopped, the rotating disk 31 stops rotating, and the power source 1 53 and the power source 2 54 work simultaneously. The power source 1 53 drives the moving cylinder 52 to rise, and the upper end surface of the stator 8 is attracted by the vacuum suction cup 552, lifting the polished stator 8 from the rotating disk 31. Then, the power source 3 42 drives the slide 5 to return from the position of the rotating disk 31 to the position of the placement seat 2 along the guide plate 41. Finally, the vacuum suction cup 552 releases the negative pressure and removes the polished stator 8, completing one work cycle.

[0059] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A polishing device for the outer circle of a motor stator, characterized by, include: The workbench (1) is provided with a placement seat (2) for placing the stator (8) to be polished. A rotating disk (31) is rotatably connected to the worktable (1) via a rotating mechanism, which drives the rotating disk (31) to rotate around its own axis. Two support plates (4) are arranged opposite each other on the workbench (1), and the rotary disk (31) and the placement seat (2) are both located between the two support plates (4); The slide (5) is horizontally slidably connected between the two support plates (4) by a moving mechanism, which is used to drive the slide (5) to reciprocate between the placement seat (2) and the rotating disk (31); The transfer centering and pressing mechanism is provided on the slide (5) and is used to center the stator (8) on the placement seat (2), and to adsorb and transfer the centered stator (8) to the rotating disk (31), and to press the stator (8) against the upper end face of the rotating disk (31); The polishing mechanism is set on the worktable (1) and is used to polish the inner and outer walls of the stator (8) pressed on the rotating disk (31).

2. The polishing device for the outer diameter of a motor stator as described in claim 1, characterized in that, The transfer centering and clamping mechanism includes: A through hole (51) is formed at the top of the slide (5); The movable cylinder (52) is vertically arranged. The bottom end of the movable cylinder (52) passes through the through hole (51) and is coaxially connected to the rotating column (521). The slide (5) is provided with a power source (53) for pushing the movable cylinder (52) to rise and fall vertically. The slide cylinder (522) is coaxially slidably sleeved on the outer wall of the rotating column (521), and a push ring (523) is coaxially rotatably connected on the outer wall of the slide cylinder (522). The slide block (5) is provided with a second power source (54) to push the push ring (523) to move vertically. At least three swing arms (55), one end of each swing arm (55) is hinged to the bottom of the outer wall of the rotating column (521), and each swing arm (55) is evenly distributed along the circumference of the rotating column (521); Adjusting rod (56) is hinged between the upper surface of each of the swing rods (55) and the outer wall of the slide cylinder (522); A clamping block (551) is provided on the bottom surface of each of the swing rods (55), and a vacuum suction cup (552) is provided on the bottom surface of the clamping block (551). When the slide cylinder (522) is raised or lowered, the adjusting rod (56) drives each swing rod (55) to swing synchronously, so that the swing rod (55) switches between a conical centering state and a horizontal pressing state.

3. The polishing device for the outer diameter of a motor stator as described in claim 2, characterized in that, The clamping block (551) has a vacuum chamber (553) inside, and the vacuum suction cup (552) is connected to the vacuum chamber (553). The rotating column (521) has a gas collecting chamber (524) inside, and the rotating column (521) has a rotary joint (525) located inside the moving cylinder (52) and connected to the gas collecting chamber (524). The vacuum chamber (553) in each clamping block (551) is connected to the gas collecting chamber (524) through a diversion pipe (554), and the diversion pipe (554) is a flexible hose.

4. The polishing device for the outer diameter of a motor stator as described in claim 2, characterized in that, The rotating disk (31) is provided with a number of receiving blocks (32), the number of receiving blocks (32) is the same as that of pressing blocks (551), and each receiving block (32) is evenly distributed along the circumference of the rotating disk (31).

5. A polishing device for the outer diameter of a motor stator as described in claim 4, characterized in that, Each of the receiving blocks (32) is slidably connected to the rotating disk (31) radially. Each of the receiving blocks (32) is provided with a limiting member one for limiting the sliding of the receiving block (32). The pressing block (551) is slidably connected to the swing rod (55) along the length direction of the swing rod (55). The swing rod (55) is provided with a limiting member two for limiting the sliding of the pressing block (551).

6. The polishing device for the outer diameter of an electric motor stator as described in claim 5, characterized in that, The limiting component includes a protruding plate (6) disposed below one side of the receiving block (32), and a limiting bolt (61) is threaded onto the protruding plate (6). The bottom end of the limiting bolt (61) passes through the protruding plate (6) and abuts against the top end of the rotating disk (31). The second limiting member has the same structure as the first limiting member. At this time, the protruding plate (6) is set above one side of the pressing block (551). The top end of the limiting bolt (61) passes through the protruding plate (6) and abuts against the bottom end of the swing rod (55). The locking directions of the first limiting member and the second limiting member are opposite.

7. A polishing device for the outer diameter of a motor stator as described in claim 1, characterized in that, The rotating mechanism includes a fixed ring seat (3) set on the workbench (1), the rotating disk (31) is coaxially rotatably connected to the top of the fixed ring seat (3), the bottom end of the rotating disk (31) is coaxially provided with a gear ring (311), the fixed ring seat (3) is located inside the gear ring (311), the workbench (1) is provided with a drive motor (33), and one end of the rotating shaft of the drive motor (33) is provided with a gear (331) that meshes with the gear ring (311), the gear (331) and the gear ring (311) are both located below the rotating disk (31).

8. A polishing device for the outer diameter of a motor stator as described in claim 2, characterized in that, The moving mechanism includes two guide rails (41) horizontally arranged between two support plates (4) and the two guide rails (41) are arranged opposite to each other. The slide (5) slides horizontally along the length direction of the guide rails (41) and is connected to the two guide rails (41). The moving cylinder (52) is located between the two guide rails (41). One of the guide rails (41) is provided with a power source (42) for driving the slide (5) to reciprocate between the placement seat (2) and the rotating disk (31) along the length direction of the guide rail (41).

9. A polishing device for the outer diameter of an electric motor stator as described in claim 8, characterized in that, The two guide rail plates (41) are provided with baffles (43). When the slide (5) is located directly above the rotating disk (31) and the axis of the rotating column (521) coincides with that of the rotating disk (31), the slide (5) abuts against one side of the baffle (43).

10. A polishing device for the outer diameter of an electric motor stator as described in claim 7, characterized in that, The polishing mechanism includes an outer polishing component and an inner polishing component. The outer polishing component is used to polish the outer side of the stator (8), and the inner polishing component is used to polish the inner side of the stator (8). The outer polishing assembly includes a vertically arranged upright plate (71) and a horizontally arranged suspension plate (72) on one side of the upright plate (71). The upright plate (71) and the suspension plate (72) form an inverted L-shaped mounting bracket (7). The worktable (1) is provided with a displacement mechanism (73) connected to the mounting bracket (7). The displacement mechanism (73) is used to drive the mounting bracket (7) to move horizontally and vertically. The side of the suspension plate (72) away from the upright plate (71) is provided with two vertically distributed fixed plates (721). A polishing wheel (722) is rotatably connected between the two fixed plates (721). A drive shaft (723) is rotatably connected to the suspension plate (72). The drive shaft (723) and the polishing wheel (722) are connected by a chain assembly (724). The upright plate (71) is provided with a polishing motor (74) for driving the drive shaft (723) to rotate. The inner polishing assembly has the same structure as the outer polishing assembly. At this time, the top of the upright plate (71), the suspension plate (72) and the polishing wheel (722) of the inner polishing assembly all pass through the fixed ring seat (3) and are located above the rotating disk (31) for polishing the inner wall of the stator (8).

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