A balancing apparatus for a rotor of a direct current motor

Abstract

The application relates to a balancing correction device for a rotor in a direct-current motor and relates to the technical field of balancing correction, and comprises a base, a clamping seat fixed to the upper side of the base, a clamping gap for placing the rotor is formed in the top surface of the clamping seat; a clamping assembly is arranged on the base; a machining cavity is formed in the vertical surface of one side of the clamping seat, a giving-way through groove communicated with the machining cavity is formed in the bottom wall of the clamping gap; a correction assembly for plugging the opening of the machining cavity and cutting the bottom of the rotor extending into the machining cavity is arranged on the base; a placing cavity is formed in the vertical surface of one side of the base, a storage box, a connecting pipe and a power source are arranged in the placing cavity, and the two ends of the connecting pipe are respectively communicated with the top of the storage box and the bottom of the machining cavity; the application can quickly suck the cutting debris into the storage box for centralized storage, so that the debris can not scratch the workers, and the subsequent cleaning workload can be greatly reduced.

Description

Technical Field

[0001] This application relates to the technical field of balance correction, and in particular to a balance correction device for the internal rotor of a DC motor. Background Technology

[0002] The DC motor inside a car horn is the core drive component, and the rotor is the key part that enables the DC motor to operate. In practical applications, the rotor needs to rotate continuously and autonomously, and its rotational stability directly affects the normal operation of the DC motor, thus impacting the performance of the car horn. If the rotor's rotation is unstable, it will lead to abnormal motor operation. Therefore, to ensure stable rotor rotation and the reliable performance of both the DC motor and the car horn, the rotor must undergo rigorous balancing testing before leaving the factory. If any imbalance is detected, it must be corrected promptly.

[0003] In related technologies, a motor rotor balancing and correction device mainly consists of three components: clamping, lifting, and cutting. The clamping component securely holds the motor rotor to prevent displacement during correction; the lifting component includes a base and a lead screw mounted on the base, with the lead screw connecting to the clamping component and enabling precise control of its lifting and lowering; the cutting component has a mounting bracket on the base and a cutter inside the bracket. During operation, the rotor is first clamped, and then the height is adjusted by the lifting component to bring the rotor closer to the cutter, which then cuts away excess material to achieve balance correction.

[0004] However, when the cutter cuts the rotor, the debris flies everywhere. This can cause bodily harm to nearby workers, such as cuts; moreover, the scattered debris is difficult to clean up, requiring workers to spend a lot of time on cleanup, which not only increases their workload but also affects overall work efficiency. Therefore, there is considerable room for improvement. Summary of the Invention

[0005] The purpose of this application is to provide a balancing and correction device for the internal rotor of a DC motor, which solves the problems in the above-mentioned related technologies where debris may cause damage to nearby workers during rotor cutting, and the subsequent cleaning is quite cumbersome.

[0006] The balancing and correction device for the internal rotor of a DC motor provided in this application adopts the following technical solution:

[0007] A balancing and correcting device for an internal rotor of a DC motor includes a base and a clamping seat fixed to the side of the base. The top surface of the clamping seat has a clamping notch for inserting the rotor. The base has a clamping assembly that clamps the rotor within the clamping notch and drives it to rotate around its own axis. A machining cavity is formed on one vertical surface of the clamping seat, and a clearance groove communicating with the machining cavity is formed on the bottom wall of the clamping notch. The bottom of the rotor within the clamping notch extends into the machining cavity through the clearance groove. The base has a correcting assembly that seals the opening of the machining cavity and cuts the bottom of the rotor extending into the machining cavity. A placement cavity is formed on one vertical surface of the base, and the placement cavity contains a storage box, a connecting pipe, and a power source that creates a negative pressure environment inside the storage box. The two ends of the connecting pipe are respectively connected to the top of the storage box and the bottom of the machining cavity.

[0008] By adopting the above technical solution, a clamping seat with a machining cavity is set on the base, allowing the bottom of the rotor to extend into the machining cavity through a clearance groove. The clamping component can firmly clamp the rotor in the clamping notch and drive it to rotate. In conjunction with the correction component, the bottom of the rotor is precisely cut, ensuring the stability and accuracy of the rotor balance correction. When the correction component is working, it can block the opening of the machining cavity, limiting the range of debris splashing in space. At the same time, the power source placed in the cavity creates a negative pressure in the collection box. Combined with the connecting pipes at both ends that connect the top of the collection box and the bottom of the machining cavity respectively, the debris generated by cutting can be quickly sucked into the collection box for centralized collection. This not only avoids the debris from scratching the staff, but also greatly reduces the amount of subsequent cleaning work, reduces the burden on the staff, and improves work efficiency.

[0009] Optionally, two support plates are fixedly mounted on the base, and a support notch is provided on the top surface of the support plate for the rotor to be inserted and rotated in a horizontal state; a first power component is provided between the two support plates on the base to drive the rotor to rotate around its own axis; and a clamping assembly is also provided on the base to reciprocate the rotor between the support notch and the clamping notch.

[0010] By adopting the above technical solution, the support notches of the two support plates can horizontally engage the rotor. In conjunction with the first power component, the rotor is driven to rotate. The rotor's rotational stability can be detected before cutting and correction to determine whether correction is needed. After correction, it can be re-inspected to determine whether it is qualified, ensuring the correction accuracy. The clamping component realizes the automatic reciprocating movement of the rotor between the support notch (detection position) and the clamping notch (correction position). There is no need for manual handling of the rotor, which reduces the intensity of manual operation, avoids rotor damage during handling, and improves the efficiency of each process connection. The detection and correction links form a continuous closed loop, which improves the overall automation level and operational reliability of the equipment.

[0011] Optionally, a crossbeam is fixed above the base, and the clamping assembly includes a mounting plate disposed below the crossbeam, a fifth driving member fixed on the crossbeam to drive the mounting plate to slide up and down, a clamping rod is rotatably disposed on the bottom surface of the mounting plate, a sixth driving member is fixedly disposed to drive the middle part of the clamping rod to reciprocate along the horizontal plane, and vertically downward pneumatic grippers are fixed at both ends of the clamping rod.

[0012] By adopting the above technical solution, the fifth driving component can drive the mounting plate to slide up and down, flexibly adjusting the height of the pneumatic gripper to adapt to the rotor gripping and placement requirements; the sixth driving component can drive the gripping rod to rotate horizontally, and together with the pneumatic grippers with both ends pointing downwards, can simultaneously complete the reciprocating operation of "gripping the rotor at the detection position - transferring it to the calibration position" and "gripping the calibrated rotor - transferring it to the re-inspection position", without the need for additional switching components.

[0013] Optionally, a movable plate located on the side of the clamping seat away from the correction component is slidably mounted on the top surface of the base, and a third driving member is fixedly mounted to drive the movable plate to slide back and forth towards the clamping seat; a limiting rod with one end rotatably connected to the top surface of the movable plate is provided above the base, and a fourth driving member is provided on the movable plate to drive the limiting rod to rotate back and forth towards the clamping seat; a limiting block is fixedly mounted on the other end of the limiting rod facing the outer periphery of the clamping seat, and a limiting notch is opened on the limiting block to limit the upper part of the rotor located in the clamping notch.

[0014] By adopting the above technical solution, the third driving component can move the moving plate closer to or away from the clamping seat. In conjunction with the fourth driving component, it drives the limiting rod to rotate, flexibly adjusting the position of the limiting block so that the limiting notch precisely engages with the upper part of the rotor within the clamping notch. This limiting method neither hinders the rotor's rotation with the clamping assembly nor restricts radial displacement of the rotor during correction from above, preventing rotor sway from affecting cutting accuracy. Simultaneously, the limiting state can be quickly switched via the driving component, and the limiting can be rapidly released after correction, without affecting subsequent rotor transfer, thus balancing correction stability and operational convenience.

[0015] Optionally, a fixed frame is slidably mounted on the base, and a first drive source is fixedly mounted to drive the fixed frame to reciprocate along the rotor axis. A fixed plate is slidably mounted on the fixed frame, and a second drive source is fixedly mounted to drive the fixed plate to slide up and down. The correction assembly includes a correction roller placed horizontally into the processing cavity and a third drive source fixed on the fixed plate. The third drive source is used to drive the correction roller to rotate. The correction roller is perpendicular to the axis of the rotor. A sealing plate is fixedly mounted on the fixed plate to seal the opening of the processing cavity.

[0016] By adopting the above technical solution, the first drive source drives the fixed frame to slide along the rotor axis, and the second drive source drives the fixed plate to slide up and down. The position of the correction roller in the horizontal and vertical directions can be flexibly adjusted to adapt to the cutting requirements of rotors of different specifications. With the third drive source driving the correction roller to rotate, the bottom of the rotor can be precisely cut to ensure the correction accuracy. At the same time, the sealing plate on the fixed plate always blocks the opening of the processing cavity. Combined with the negative pressure collection of the previously collected components, the path of debris splashing from the opening of the processing cavity can be completely blocked. This not only avoids debris from harming the workers, but also reduces the cleaning burden. Overall, it takes into account both the correction accuracy and the operation safety, and optimizes the correction process.

[0017] Optionally, a connecting rod is fixedly provided on the side of the moving plate facing the clamping seat, and a connecting through hole is provided on the clamping seat for the connecting rod to pass through and communicate with the processing cavity; two adjusting rods parallel to the correction roller are provided opposite each other in the lower part of the processing cavity, and a control component is provided in the processing cavity to connect with the inner end of the connecting rod; when the moving plate slides away from the clamping seat, the connecting rod drives the two adjusting rods to slide towards each other to the clean state through the control component, and when the moving plate slides in the opposite direction, it drives the two adjusting rods to slide away from each other to the unlocked state; a cleaning brush is fixedly provided on the side of the two adjusting rods close to each other, and the cleaning brush cleans the outer circumferential surface of the correction roller when the correction roller moves down and the adjusting rod is in the clean state.

[0018] By adopting the above technical solution, the moving plate moves synchronously with the connecting rod when it slides. The two adjusting rods can be driven to slide towards or away from each other by the control components, and the cleaning / unlocking state can be flexibly switched. The unlocking state does not affect the calibration operation. In the cleaning state, the cleaning brush can fit against the outer periphery of the downward-moving calibration roller. The surface debris can be removed by the rotation of the calibration roller itself. There is no need to disassemble the cleaning parts, which reduces the amount of manual cleaning work.

[0019] Optionally, the correction roller has a clearance annular groove on its outer periphery facing the sealing plate, and a locking plate fitted into the clearance annular groove is fixed on the side of the sealing plate facing the clamping seat. A locking notch is provided on the top surface of the locking plate. Locking blocks are fixed on the ends of the two adjusting rods facing the sealing plate. The correction roller moves down to below the adjusting rods, and the two adjusting rods can slide towards each other until the locking blocks are inserted into the locking notch and locked.

[0020] By adopting the above technical solution, when the correction roller moves down to below the adjusting rod, the two adjusting rods slide towards each other, which can drive the locking block to insert into the locking notch of the locking plate. Combined with the basic positioning of the locking plate sleeved on the relief ring groove, the position of the correction roller can be restricted from both radial and circumferential directions, preventing it from shifting during cleaning (such as air blowing) or when stationary.

[0021] Optionally, the control component includes a control rod whose two ends are rotatably connected to the inner end of the connecting rod and the adjusting rod respectively toward the end of the connecting rod, and a positioning rod vertically fixed on the two adjusting rods on their opposite sides; the inner wall of the processing cavity is provided with a positioning through hole for the positioning rod to be inserted and for communication with the outside.

[0022] By adopting the above technical solution, the two ends of the control rod are rotatably connected to the connecting rod and the adjusting rod, respectively. This transforms the linear sliding of the connecting rod driven by the moving plate into the sliding of the two adjusting rods in opposite directions or away from each other. No additional complex transmission structure is required, simplifying the design while ensuring smooth operation. The positioning rod, which is vertically fixed to the adjusting rod, can slide along the positioning through hole on the inner wall of the processing cavity. This not only guides the sliding of the adjusting rod and prevents it from deviating or getting stuck, but also limits the sliding stroke of the adjusting rod through the end of the positioning through hole. This ensures that the adjusting rod is accurately aligned with the correction roller in the cleaning state and does not interfere with processing in the unlocked state. The overall structure is reliable and low in cost, effectively improving the stability and accuracy of the adjusting rod's movement.

[0023] Optionally, the adjusting rod has an internal air storage chamber and several air jets on its bottom surface. The positioning rod has an air guide hole along its own axis on its outer end surface that communicates with the air storage chamber. The outer opening of the air guide hole can be detachably connected to an external compressed gas pipeline, so that compressed air passes through the air guide hole and the air storage chamber and is discharged from the air jet. The correction roller moves down to the bottom of the adjusting rod, and the two adjusting rods can slide towards each other until the air jet is above the correction roller. The compressed gas ejected from the air jet can then clean the debris on the correction roller.

[0024] By adopting the above technical solution, external compressed gas enters the gas storage chamber through the air guide hole and is then ejected from the jet nozzle. This allows for high-pressure purging of the correction roller that has moved down to the adjustment rod, effectively removing residual debris that the cleaning brush failed to clean, ensuring the cleanliness of the outer circumference of the correction roller, and preventing debris from affecting the rotor correction accuracy during subsequent cutting. At the same time, the position of the jet nozzle can be precisely aligned with the correction roller by sliding towards each other with the adjustment rod, without the need for additional component adjustments. Furthermore, the air guide hole and the compressed gas pipeline are detachably connected, facilitating flexible start and stop of the purging function as needed.

[0025] Optionally, the clamping assembly includes a clamping member that coaxially clamps the rotor within the clamping notch, a first driving member that drives the clamping member to rotate, and a second driving member that drives the first driving member to reciprocate.

[0026] By adopting the above technical solution, the clamping component can be coaxially clamped with the rotor in the clamping notch, ensuring the stability of the rotor's central axis and avoiding correction deviation due to clamping eccentricity; the first driving component can drive the clamping component and the rotor to rotate synchronously, and cooperate with the correction component to achieve uniform cutting of the rotor's outer circumference, ensuring correction accuracy; the second driving component can drive the entire driving and clamping structure to slide back and forth, which is convenient for retraction and avoidance when the rotor is placed in the clamping notch, and can also accurately approach and apply appropriate clamping force when clamping.

[0027] In summary, this application includes the following beneficial technical effects:

[0028] A clamping seat with a machining cavity is set on the base, allowing the bottom of the rotor to extend into the machining cavity through a clearance groove. The clamping assembly can firmly clamp the rotor in the clamping notch and drive it to rotate. In conjunction with the correction assembly, the bottom of the rotor is precisely cut to ensure the stability and accuracy of the rotor balance correction. When the correction assembly is working, it can block the opening of the machining cavity to limit the range of chip splashing in space.

[0029] Meanwhile, the power source inside the cavity creates negative pressure in the storage box. Combined with the connecting pipes at both ends that connect the top of the storage box to the bottom of the processing cavity, the cutting debris can be quickly sucked into the storage box for centralized collection. This not only prevents the debris from scratching the staff, but also greatly reduces the amount of subsequent cleaning work, reduces the burden on the staff, and improves work efficiency. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application;

[0031] Figure 2 This is a partial cross-sectional view of Embodiment 1 of this application illustrating the installation and assembly of the storage components;

[0032] Figure 3 This is a partial structural diagram illustrating the installation and assembly of the detection components in Embodiment 1 of this application;

[0033] Figure 4 This is a partial structural diagram illustrating the installation and mating of the clamping component in Embodiment 1 of this application;

[0034] Figure 5 This is a cross-sectional view of Embodiment 1 of this application illustrating the installation and mating of the clamping assembly;

[0035] Figure 6 This is a partial structural diagram illustrating the mounting and cooperation of the first driving source and the fixed frame in Embodiment 1 of this application;

[0036] Figure 7 This is a partial cross-sectional view of Embodiment 1 of this application, illustrating the installation and cooperation of the fixing plate and the second drive source.

[0037] Figure 8This is a partial structural diagram illustrating the installation and engagement of the limiting component in Embodiment 1 of this application;

[0038] Figure 9 This is a partial structural diagram illustrating the installation and fit of the connecting rod in Embodiment 2 of this application;

[0039] Figure 10 This is an exploded structural diagram illustrating the installation distribution of the connecting rod and control components in Embodiment 2 of this application;

[0040] Figure 11 This is a cross-sectional structural diagram illustrating the installation and mating of the locking plate in Embodiment 2 of this application;

[0041] Figure 12 This is a partial cross-sectional view of Embodiment 2 of this application illustrating the installation and cooperation of the control rod and the positioning rod;

[0042] Figure 13 This is a partial cross-sectional view of the installation and fit of the adjusting rod in Embodiment 2 of this application.

[0043] In the diagram, 1. Base; 11. Placement cavity; 12. Crossbeam; 13. Clamping assembly; 131. Mounting plate; 132. Fifth drive component; 133. Clamping rod; 134. Sixth drive component; 135. Pneumatic gripper; 14. Fixing frame; 15. First drive source; 16. Fixing plate; 17. Second drive source; 2. Clamping seat; 21. Clamping notch; 211. Clearance slot; 22. Machining cavity; 23. Connecting through hole; 24. Positioning through hole; 25. Adjusting rod; 251. Air nozzle; 26. Cleaning brush; 27. Locking block; 3. Clamping assembly; 31. Clamping element; 311. Three-jaw chuck; 32. First drive component; 33. ... 4. Correction assembly; 41. Correction roller; 411. Clearance ring groove; 42. Third drive source; 43. Sealing plate; 44. Locking plate; 441. Locking notch; 5. Storage assembly; 51. Connecting pipe; 52. Storage box; 53. Power source; 531. Negative pressure air pump; 6. Detection assembly; 61. Support plate; 611. Support notch; 62. First power component; 7. Limiting assembly; 71. Moving plate; 72. Third drive component; 73. Limiting rod; 74. Limiting block; 741. Limiting notch; 75. Fourth drive component; 76. Connecting rod; 8. Control component; 81. Control rod; 82. Positioning rod; 821. Air guide hole. Detailed Implementation

[0044] The present application will be further described in detail below with reference to all the accompanying drawings.

[0045] Example 1:

[0046] Reference Figure 1 and Figure 2A balancing and correction device for an internal rotor of a DC motor includes a base 1 and a clamping seat 2 fixed on the upper side of the base 1. The top surface of the clamping seat 2 is provided with a clamping notch 21 for inserting the rotor. The base 1 is provided with a clamping assembly 3 that clamps the rotor in the clamping notch 21 and drives the rotor to rotate around its own axis.

[0047] A machining cavity 22 is provided on one vertical surface of the clamping base 2, and a clearance groove 211 communicating with the machining cavity 22 is provided on the bottom wall of the clamping notch 21; the bottom of the rotor in the clamping notch 21 extends into the machining cavity 22 through the clearance groove 211; a correction component 4 is provided on the base 1 to seal the opening of the machining cavity 22 and cut the bottom of the rotor extending into the machining cavity 22.

[0048] A placement cavity 11 is provided on one vertical surface of the base 1, and a storage component 5 is provided in the placement cavity 11. The storage component 5 includes a connecting pipe 51, a storage box 52 for collecting debris generated during the calibration process, and a power source 53 for creating a negative pressure environment inside the storage box 52. The two ends of the connecting pipe 51 are connected to the top of the storage box 52 and the bottom of the processing cavity 22, respectively. The power source 53 is a conventional negative pressure air pump 531, which will not be described in detail here.

[0049] When the correction component 4 performs cutting correction on the bottom of the rotor extending into the machining cavity 22, the debris cut off on the rotor will fall into the machining cavity 22. At this time, the negative pressure environment in the storage box 52 is used to transfer the debris in the machining cavity 22 to the storage box 52 through the connecting pipe 51 for centralized storage, reducing the possibility of debris scattering randomly.

[0050] Reference Figure 3 The base 1 is provided with a detection component 6, which includes two support plates 61 fixed to the upper side of the base 1, and the top surface of the support plate 61 is provided with a support notch 611 for the rotor to be inserted and rotated in a horizontal state; the base 1 is provided with a first power component 62 between the two support plates 61 to drive the rotor to rotate around its own axis. The first power component 62 is a combination structure composed of a belt, a pulley and a servo motor, which will not be described in detail here;

[0051] The device drives the rotor inside the support gap 611 to rotate around its own axis by the upper side of the belt. Before correction, the staff observes whether the rotation of the rotor inside the support gap 611 is stable to determine whether correction is needed. After correction, the staff observes the rotation of the rotor inside the support gap 611 again to determine whether the correction is qualified.

[0052] Reference Figure 4A crossbeam 12 is fixed above the base 1. A clamping assembly 13 is provided on the crossbeam 12 to reciprocate the rotor between the support notch 611 and the clamping notch 21. The clamping assembly 13 includes a mounting plate 131 disposed below the crossbeam 12 and a fifth driving member 132 fixed on the crossbeam 12 to drive the mounting plate 131 to slide up and down.

[0053] A clamping rod 133 is rotatably mounted on the bottom surface of the mounting plate 131, and a sixth driving member 134 is fixedly mounted thereon, which drives the middle part of the clamping rod 133 to reciprocate along the horizontal plane. Vertically downward pneumatic grippers 135 are fixed at both ends of the clamping rod 133. The fifth driving member 132 is a conventional vertical cylinder, and the sixth driving member 134 is a conventional rotary cylinder. Both of them and the pneumatic grippers 135 are conventional structures, and will not be described in detail here.

[0054] The device uses the rotation and up-and-down movement of the pneumatic gripper 135 to first clamp the uncorrected rotor in the support notch 611 into the clamping notch 21 for correction, and can also clamp the corrected rotor in the clamping notch 21 into the support notch 611 for secondary correction.

[0055] Reference Figure 5 The clamping assembly 3 includes a clamping member 31 that coaxially clamps the rotor within the clamping notch 21, a first driving member 32 that drives the clamping member 31 to rotate, and a second driving member 33 that drives the first driving member 32 to reciprocate and slide; wherein the clamping member 31 is a three-jaw chuck 311 facing the clamping seat 2.

[0056] The first driving component 32 is a first rotary cylinder that drives the three-jaw chuck 311 to rotate, and the second driving component 33 is a second electric cylinder fixed on the side of the base 1 that drives the rotary cylinder to slide back and forth. Details will not be elaborated here. First, the second driving component 33 drives the three-jaw chuck 311 to slide towards the clamping seat 2. Then, the three-jaw chuck 311 clamps one end of the rotor within the clamping notch 21. Finally, the first rotary cylinder drives the rotor to rotate during the calibration process.

[0057] Reference Figure 6 and Figure 7 A fixed frame 14 is slidably mounted on the base 1, and a first drive source 15 is fixedly mounted to drive the fixed frame 14 to slide back and forth along the rotor axis. A fixed plate 16 is slidably mounted on the fixed frame 14, and a second drive source 17 is fixedly mounted to drive the fixed plate 16 to slide up and down.

[0058] The correction assembly 4 includes a correction roller 41 placed horizontally into the processing cavity 22 and a third drive source 42 fixed on the fixed plate 16. The third drive source 42 is used to drive the correction roller 41 to rotate, and the correction roller 41 is perpendicular to the axis of the rotor. A sealing plate 43 is fixed on the fixed plate 16 to seal the opening of the processing cavity 22.

[0059] The first drive source 15 is a motor screw assembly structure located on the side of the base 1, the second drive source 17 is a linear guide rail located on the fixed frame 14, and the third drive source 42 is a motor reducer assembly structure fixed on the fixed plate 16. These will not be described in detail here. During the movement of the correction roller 41 in the processing cavity 22, the sealing plate 43 can seal the corresponding opening of the processing cavity 22, reducing the possibility of debris being discharged from the opening of the processing cavity 22.

[0060] Reference Figure 8 The base 1 is provided with a limiting component 7, which includes a movable plate 71 slidably mounted on the top surface of the base 1 and a third driving member 72 fixed on the base 1. The movable plate 71 is located on the side of the clamping seat 2 away from the correction component 4. The third driving member 72 is used to drive the movable plate 71 to slide back and forth towards the clamping seat 2. The third driving member 72 is an electric push rod fixed on the base 1, which will not be described in detail here.

[0061] A limiting rod 73 is provided above the base 1, with one end rotatably connected to the top surface of the movable plate 71. The movable plate 71 is provided with a fourth driving member 75 that drives the limiting rod 73 to reciprocate towards the clamping seat 2. The fourth driving member 75 is a fourth cylinder with both ends rotatably connected to the top surface of the movable plate 71 and the outer peripheral surface of the limiting rod 73, respectively. The rotation adjustment of the limiting rod 73 is driven by the extension and retraction adjustment of the fourth cylinder itself.

[0062] The other end of the limiting rod 73 is fixedly provided with a limiting block 74 facing the outer periphery of the clamping seat 2, and a limiting notch 741 is provided on the limiting block 74. When it is necessary to limit the upper part of the rotor in the clamping notch 21, first slide the moving plate 71 towards the clamping seat 2 so that the limiting block 74 is above the clamping notch 21, and then rotate the limiting rod 73 towards the clamping seat 2 so that the upper part of the rotor in the clamping notch 21 is inserted into the limiting notch 741. When it is necessary to release the limit, the limiting rod 73 and the moving plate 71 are reset in opposite directions.

[0063] The implementation principle of this application embodiment is as follows:

[0064] Pre-calibration inspection: The rotor is placed in the support notch 611 of the two support plates 61. The first power component 62 (belt, pulley, servo motor) drives the rotor to rotate. The staff observes the rotational stability and determines whether calibration is required.

[0065] Rotor transfer: The clamping assembly 13 on the crossbeam 12 is activated, the fifth driving component 132 (vertical cylinder) drives the mounting plate 131 to move down, the pneumatic gripper 135 clamps the rotor to be corrected, and the sixth driving component 134 (rotary cylinder) rotates the clamping rod 133 to transfer the rotor to the clamping notch 21 of the clamping seat 2.

[0066] Clamping and limiting: In the clamping assembly 3, the second driving component 33 drives the three-jaw chuck 311 to approach the clamping seat 2 and clamp one end of the rotor; the third driving component 72 drives the moving plate 71 to move, and the fourth driving component 75 adjusts the limiting rod 73 so that the upper part of the rotor is inserted into the limiting notch 741 to achieve bidirectional fixation.

[0067] Cutting correction and chip collection: The first drive source 15 and the second drive source 17 adjust the position of the correction roller 41, and the third drive source 42 drives the correction roller 41 to rotate, cutting the bottom of the rotor in the processing cavity 22; the sealing plate 43 always seals the opening of the processing cavity 22, and the power source 53 makes the collection box 52 negative pressure, and the chips enter the collection box 52 through the connecting pipe 51.

[0068] Post-calibration inspection: The clamping assembly 13 moves the calibrated rotor back to the support notch 611, and repeats the inspection steps to determine whether the calibration is qualified.

[0069] Example 2:

[0070] Reference Figure 9 , Figure 10 and Figure 11 The difference between this embodiment and Embodiment 1 is that a connecting rod 76 is fixedly provided on the side of the moving plate 71 facing the clamping seat 2, wherein the clamping seat 2 is provided with a connecting through hole 23 for the connecting rod 76 to pass through and communicate with the processing cavity 22; two adjusting rods 25 parallel to the correction roller 41 are provided at the lower part of the processing cavity 22, and a control component 8 connected to the inner end of the connecting rod 76 is provided in the processing cavity 22;

[0071] When the moving plate 71 slides away from the clamping seat 2, the connecting rod 76 drives the two adjusting rods 25 to slide towards each other to the cleaning state through the control component 8. When the moving plate 71 slides in the opposite direction, it drives the two adjusting rods 25 to slide away from each other to the unlocked state. A cleaning brush 26 is fixed on the side of the two adjusting rods 25 that are close to each other.

[0072] When the correction roller 41 moves down and the adjusting rod 25 is in the cleaning state, the sides of the two cleaning brushes 26 that are close to each other are in contact with the outer peripheral surface of the correction roller 41. When the correction roller 41 rotates, the cleaning brushes 26 can clean the outer peripheral surface of the correction roller 41, thereby removing the debris adhering to the outer peripheral surface of the correction roller 41.

[0073] Reference Figure 11 and Figure 12The control component 8 includes a control rod 81 whose two ends are respectively rotatably connected to the inner end of the connecting rod 76 and the adjusting rod 25 toward the end of the connecting rod 76, and a positioning rod 82 vertically fixed on the opposite sides of the two adjusting rods 25; wherein the inner wall of the processing cavity 22 is provided with a positioning through hole 24 for the positioning rod 82 to be inserted and communicating with the outside; the device uses the positioning rod 82 to limit the sliding of the adjusting rods 25 in opposite directions, while the moving plate 71 drives the two adjusting rods 25 to slide in opposite directions through the two control rods 81 to achieve the corresponding action.

[0074] Reference Figure 12 and Figure 13 The adjusting rod 25 has an air storage chamber (not shown in the figure) inside and several air jets 251 on its bottom surface. The positioning rod 82 has an air guide hole 821 connected to the air storage chamber along its own axis on its outer end surface. The outer opening of the air guide hole 821 can be detachably connected to an external compressed gas pipeline, so that compressed air passes through the air guide hole 821 and the air storage chamber and is discharged from the air jet 251.

[0075] After the cleaning brush 26 has finished cleaning the alignment roller 41, the alignment roller 41 is further moved down to below the adjusting rod 25. Then the two adjusting rods 25 continue to slide towards each other until the air jet 251 is positioned above the alignment roller 41. At this time, the compressed gas ejected from the air jet 251 can further blow away the debris on the alignment roller 41.

[0076] Reference Figure 11 and Figure 12 The correction roller 41 has a clearance annular groove 411 on the outer periphery of the sealing plate 43. The sealing plate 43 has a locking plate 44 fixed on the side facing the clamping seat 2 and fitted into the clearance annular groove 411. The top surface of the locking plate 44 has a locking notch 441. The two adjusting rods 25 have locking inserts 27 fixed on their ends facing the sealing plate 43.

[0077] When the correction roller 41 moves down to below the adjusting rod 25 and is further cleaned by the air jet 251, the locking blocks 27 on the two adjusting rods 25 are simultaneously inserted into the locking notch 441 to further lock the state of the correction roller 41 and reduce the possibility of the correction roller 41 moving or shifting again in this state.

[0078] The implementation principle of this application embodiment is as follows:

[0079] Adjustment rod 25 state switching: When the moving plate 71 moves away from the clamping seat 2, its fixed connecting rod 76 slides along the connecting through hole 23, and the control component 8 drives the two adjustment rods 25 to slide towards each other. The positioning rod 82 moves along the positioning through hole 24 to the limit position, and the adjustment rod 25 switches to the clean state; when the moving plate 71 approaches the clamping seat 2, the connecting rod 76 pulls the control rod 81 in the opposite direction, causing the adjustment rods 25 to slide away from each other. The positioning rod 82 is limited again, and the adjustment rod 25 switches to the unlocked state.

[0080] Cleaning of the correction roller 41: The correction roller 41 is lowered to a position where it is level with the height of the adjusting rod 25. Then, the two adjusting rods 25 slide towards each other, thereby causing the cleaning brush 26 on the adjusting rod 25 to adhere to the outer periphery of the correction roller 41. During the rotation of the correction roller 41, the cleaning brush 26 removes the debris adhering to its surface.

[0081] Compressed gas purging: After initial cleaning, the alignment roller 41 continues to move down below the adjusting rod 25, and the adjusting rod 25 slides further towards each other, so that the two cleaning brushes 26 are in abutting position. At this time, external compressed gas is ejected from the air jet nozzle 251 through the air guide hole 821 and the air storage chamber to blow away residual debris on the alignment roller 41. During air jet purging, the locking block 27 at the end of the adjusting rod 25 is simultaneously inserted into the locking notch 441 to lock the position of the alignment roller 41, preventing it from moving or shifting during the purging process and ensuring stable cleaning effect.

[0082] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A balancing correction device for a rotor in a direct current motor, characterized in that The utility model provides a rotator clamping and correcting device, including base (1), the clamping seat (2) of being fixed on the upside of base (1), the clamping gap (21) of being set up on the top surface of clamping seat (2) is inserted to rotator, is equipped with the clamping assembly (3) of rotator in clamping gap (21) is clamped and is driven rotator rotates around the axis of itself on base (1), The vertical surface of one side of clamping seat (2) is equipped with processing cavity (22), and the bottom wall of clamping gap (21) is equipped with the accommodation slot (211) of being communicated with processing cavity (22), and the bottom of rotator in clamping gap (21) extends to processing cavity (22) through accommodation slot (211), and is equipped with the correction assembly (4) of rotator bottom in processing cavity (22) extension being cut in processing cavity (22) opening plugging of base (1), The vertical surface of one side of base (1) is equipped with the placement cavity (11), and the placement cavity (11) is equipped with the receiving box (52), the connecting pipe (51) and the power source (53) of making the negative pressure environment in receiving box (52), and the both ends of connecting pipe (51) are communicated with the top of receiving box (52) and the bottom of processing cavity (22) respectively, The top surface of base (1) is equipped with the moving plate (71) of being located in the side of clamping seat (2) away from correction assembly (4), and is equipped with the third drive (72) of being fixed with driving moving plate (71) reciprocating sliding towards clamping seat (2), The top of moving plate (71) is rotatably connected with the limiting rod (73) of one end, and the fourth drive (75) of driving limiting rod (73) reciprocating rotation towards clamping seat (2) is arranged on moving plate (71), and the limiting block (74) is fixed on the outer periphery of clamping seat (2) of the other end of limiting rod (73), and the limiting gap (741) of limiting the upper part of rotator in clamping gap (21) is formed in limiting block (74), The top surface of base (1) is equipped with the fixed frame (14) of being slid, and is equipped with the first drive source (15) of being fixed with driving fixed frame (14) reciprocating sliding along the axis direction of rotator, and the fixed plate (16) of being slid is arranged on fixed frame (14), and the second drive source (17) of being fixed with driving fixed plate (16) up and down sliding is arranged on fixed frame (14), The correction assembly (4) includes the correction roller (41) of being inserted into processing cavity (22) along the horizontal direction, the third drive source (42) of being fixed on fixed plate (16), the third drive source (42) is used for driving correction roller (41) to rotate, and the axis direction of correction roller (41) is perpendicular to rotator, and the sealing plate (43) of plugging the opening of processing cavity (22) is fixed on fixed plate (16).

2. A balancing apparatus for a rotor of a direct current motor according to claim 1, wherein The top surface of the two support plates (61) relatively fixed on base (1) is equipped with the support gap (611) of being inserted and rotating in the horizontal state of rotator, The first power element (62) of driving rotator rotates around the axis of itself is arranged between the two support plates (61) of base (1), and the clamping assembly (13) of shifting rotator reciprocating between support gap (611) and clamping gap (21) is further arranged on base (1).

3. A balancing apparatus for a rotor of a direct current motor according to claim 2, wherein The base (1) is provided with a crossbeam (12) above, the clamping assembly (13) includes a mounting plate (131) arranged below the crossbeam (12), a fifth driving element (132) fixedly arranged on the crossbeam (12) to drive the mounting plate (131) to slide up and down, a clamping rod (133) rotatably arranged on the bottom surface of the mounting plate (131), a sixth driving element (134) fixedly arranged to drive the middle part of the clamping rod (133) to rotate reciprocatingly along the horizontal plane, and two vertical downward pneumatic clamping jaws (135) fixedly arranged at the two ends of the clamping rod (133).

4. A balancing apparatus for a rotor of a direct current motor according to claim 1, wherein The side surface of the moving plate (71) towards the clamping seat (2) is fixedly provided with a connecting rod (76), the clamping seat (2) is provided with a connecting through hole (23) penetrating through the connecting rod (76) and communicating with the machining cavity (22), the lower part of the machining cavity (22) is oppositely provided with two adjusting rods (25) parallel to the correction roller (41), and the machining cavity (22) is provided with a control element (8) connected with the inner end of the connecting rod (76). When the moving plate (71) slides away from the clamping seat (2), the connecting rod (76) drives the two adjusting rods (25) to slide towards each other to a cleaning state through the control element (8), and when the moving plate (71) reversely slides, the two adjusting rods (25) slide away from each other to an unlocking state; the side surfaces of the two adjusting rods (25) approaching each other are fixedly provided with cleaning brushes (26), and the cleaning brushes (26) clean the outer circumferential surface of the correction roller (41) when the correction roller (41) moves downward and the adjusting rods (25) are in the cleaning state.

5. A balancing apparatus for a rotor of a direct current motor according to claim 4, wherein The outer circumferential surface of the correction roller (41) towards the plugging plate (43) is provided with a giving-up annular groove (411), the side surface of the plugging plate (43) towards the clamping seat (2) is fixedly provided with a locking plate (44) sleeved in the giving-up annular groove (411), and the top surface of the locking plate (44) is provided with a locking gap (441). The end portions of the two adjusting rods (25) towards the plugging plate (43) are fixedly provided with locking plug blocks (27), the correction roller (41) moves downward below the adjusting rods (25), and the two adjusting rods (25) can slide towards each other to a locking state in which the locking plug blocks (27) are inserted into the locking gap (441).

6. A balancing correction apparatus for a rotor of a direct current motor according to claim 4, wherein The control element (8) includes a control rod (81) rotatably connected with the inner end of the connecting rod (76) and the end portion of the adjusting rod (25) towards the end portion of the connecting rod (76), respectively, and a positioning rod (82) fixedly arranged perpendicularly on the side surfaces of the two adjusting rods (25) away from each other; the inner wall of the machining cavity (22) is provided with a positioning through hole (24) for inserting the positioning rod (82) and communicating with the outside.

7. A balancing apparatus for a rotor of a direct current motor according to claim 6, wherein The inner part of the adjusting rod (25) is provided with a gas storage cavity, and the bottom surface is provided with a plurality of gas injection ports (251), the outer end surface of the positioning rod (82) is provided with a gas guide hole (821) along the axis of the positioning rod (82) and communicating with the gas storage cavity; the outer side opening of the gas guide hole (821) can be detachably connected with an external compressed gas pipeline, so that the compressed air is discharged from the gas injection ports (251) after passing through the gas guide hole (821) and the gas storage cavity; The correction roller (41) is lowered to below the adjusting rods (25), the two adjusting rods (25) can slide towards each other to a state that the air jet (251) is above the correction roller (41), and the compressed gas jetted by the air jet (251) can clean the debris on the correction roller (41).

8. A balancing apparatus for a rotor of a direct current motor according to claim 1, wherein The clamping assembly (3) comprises a clamping piece (31) coaxially clamping the rotor in the clamping gap (21), a first driving piece (32) driving the clamping piece (31) to rotate, and a second driving piece (33) driving the first driving piece (32) to reciprocating slide.

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