High-efficiency motor rotor dynamic balance correction tooling

Abstract

The present application relates to rotor dynamic balance correction technical field, specifically to a kind of high-efficiency motor rotor dynamic balance correction tool, including tool table, rotor dynamic balance detection mechanism, rotor correction mechanism, lower rotor fixed component, arm assembly, upper rotor fixed component and rotor drive component, rotor dynamic balance detection mechanism is installed in the front side of the table top of tool table, rotor correction mechanism has two groups and is respectively installed in the two sides of rotor dynamic balance detection mechanism, lower rotor fixed component is installed in the middle position of rotor dynamic balance detection mechanism;Tail end of arm assembly is hingedly installed in the rear side of the table top of tool table;Upper rotor fixed component is installed in the front end of arm assembly.The present application integrates dynamic balance detection, clamping and drilling correction function, can complete rotor dynamic balance detection, correction and recheck whole-process automation operation in single station, can effectively improve the quality and operation efficiency of rotor dynamic balance correction.

Description

Technical Field

[0001] This invention relates to the field of rotor dynamic balancing correction technology, specifically to a high-efficiency motor rotor dynamic balancing correction fixture. Background Technology

[0002] As the core component of rotational motion, the uniformity of the motor rotor's mass distribution directly affects the vibration amplitude, noise level, and service life of the entire machine. Therefore, dynamic balancing is an indispensable and crucial process in rotor manufacturing. Currently, rotor dynamic balancing operations in the industry are mainly divided into two categories.

[0003] The first type is manual correction, where the phase and value of the rotor imbalance are measured by a dynamic balancing device, and then operators manually attach counterweights one by one, apply adhesive to add weight, or grind away excess weight to complete the correction. In this method, the reading of test data, the alignment of the correction position, and the selection of counterweight quality all heavily rely on the operator's experience and skill. A single rotor often requires repeated testing and adjustments to meet the standards, resulting in a long correction cycle. Furthermore, the consistency of correction results is poor across different shifts and among different operators, making it difficult to maintain stable product quality control, and labor costs account for a high proportion of the production process.

[0004] The second type is the fully automatic calibration method. After the dynamic balancing test is completed, a robotic arm or conveyor mechanism picks up the rotor and transfers it to the calibration station. The rotor is then corrected through de-weighting processes such as drilling and milling, or automatic dispensing and material addition processes. However, due to the mapping error between the weight removed and the amount of imbalance, as well as the tooling positioning deviation, a single calibration is usually insufficient to directly meet the qualification standard. After each drilling or milling operation, the rotor needs to be returned to the testing station for retesting, and the next round of calibration is performed based on the new test results. This process is repeated iteratively until the standard is met. The repeated switching of stations makes the rotor calibration cycle generally long.

[0005] Therefore, this application proposes a high-efficiency motor rotor dynamic balancing correction fixture. Summary of the Invention

[0006] The purpose of this invention is to provide a high-efficiency motor rotor dynamic balancing correction fixture to solve the problems of low correction efficiency and long correction cycle in existing rotor dynamic balancing correction operations mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A high-efficiency motor rotor dynamic balancing correction fixture includes a fixture table, a rotor dynamic balancing detection mechanism, a rotor correction mechanism, a lower rotor fixing assembly, a rotating arm assembly, an upper rotor fixing assembly, and a rotor drive assembly. The rotor dynamic balancing detection mechanism is installed on the front side of the fixture table to support the rotor and detect the rotor's eccentricity value. There are two sets of rotor correction mechanisms, which are respectively installed on both sides of the rotor dynamic balancing detection mechanism, and automatically perform correction processing on the motor rotor based on the eccentricity value detected by the rotor dynamic balancing detection mechanism.

[0008] The lower rotor fixing assembly is installed in the middle position of the rotor dynamic balancing testing mechanism; the tail end of the rotating arm assembly is hinged to the rear side of the tooling table; the upper rotor fixing assembly is installed at the front end of the rotating arm assembly and is used to cooperate with the lower rotor fixing assembly to radially clamp and fix the motor rotor placed on the rotor dynamic balancing testing mechanism, so as to facilitate the rotor correction mechanism to perform correction processing on the motor rotor; the rotor drive assembly is located inside the upper rotor fixing assembly and fixed to the front end of the rotating arm assembly, and is used to drive the rotor to be dynamically balanced to rotate, so as to facilitate the rotor dynamic balancing testing mechanism to monitor the eccentricity value of the motor rotor.

[0009] Furthermore, the tooling table includes a base, and two parallel slide rails are horizontally installed on the front side of the table at the top of the base. A long strip-shaped through groove is opened between the two slide rails along the length direction of the slide rails, and a first assembly hole is provided on the outer side of the two slide rails and at the middle position.

[0010] Furthermore, the top of the base is also equipped with a terminal processor with built-in display function and a hinge seat for mounting the rotating arm assembly. The hinge seat and the first mounting hole are both located on the longitudinal central axis of the base.

[0011] Furthermore, the rotor dynamic balancing testing mechanism includes a positive and negative threaded screw, a screw motor, and a rotor support unit. The positive and negative threaded screw is horizontally mounted on the bottom of the base via a bearing seat and located between two slide rails. The screw motor is mounted on the bottom of the base at one end of the positive and negative threaded screw. Synchronous pulleys are installed between the output end of the screw motor and the end of the positive and negative threaded screw, and the two synchronous pulleys are connected by a synchronous belt drive. There are two sets of rotor support units, which are symmetrically arranged with the longitudinal central axis of the base as the center. Both sets of rotor support units are located on the top of the base and are slidably connected to the two slide rails. The bottom of the two sets of rotor support units passes through the slot and is helically driven with the threaded sections at both ends of the positive and negative threaded screws, forming a screw drive mechanism.

[0012] Furthermore, the rotor support unit includes a base, a rotor support seat, lifting rollers, positioning blocks, connecting seats, vibration detection sensors, mounting brackets, lead screw nuts, and a first lifting cylinder. Both ends of the base are slidably connected to two slide rails on the top of the base via installed sliders. Two guide columns are vertically fixed to the top of the base. The rotor support seat consists of a left support seat and a right support seat connected by bolts. The left and right support seats are the same size. A V-shaped receiving groove is formed in the middle of the top of the rotor support seat. A second lifting cylinder is horizontally formed inside the rotor support seat near the top. A first sliding groove is provided, and the middle part of the first sliding groove is connected to the receiving groove. A second sliding groove is provided inside the rotor support base along the central axis of the rotor support base, and the upper end of the second sliding groove is connected to the first sliding groove. A guide groove is provided inside the rotor support base on both sides of the second sliding groove. A first slot is provided in the middle of the groove wall on both sides of the first sliding groove and on both sides of the receiving groove along the length direction of the first sliding groove. A second slot is provided in the middle of the groove wall on both sides of the second sliding groove along the length direction of the second sliding groove. Two guide posts at the top of the base are slidably inserted into the two guide grooves respectively.

[0013] Furthermore, there are two lifting rollers located in the first sliding grooves on both sides of the receiving groove. The two lifting rollers are symmetrically arranged with the receiving groove as the center, and the wheel edge of the two lifting rollers protrudes from the inner side of the receiving groove on the side that is close to each other. Both ends of the central wheel shaft of the two lifting rollers are integrally formed with a flat first positioning post. The first positioning post is slidably inserted into the first slot hole at the corresponding position on the rotor support seat, and the thickness of the first positioning post is adapted to the width of the first slot hole.

[0014] Furthermore, the positioning block is slidably inserted into the second groove inside the rotor support seat. The top of the positioning block is an isosceles triangle structure. The top of the positioning block is directly opposite the center position between the two lifting rollers, and the two inclined sides of the top of the positioning block are respectively set towards the two lifting rollers. A second positioning post is integrally formed at the middle position on both sides of the positioning block and is slidably inserted into the second slot.

[0015] Furthermore, the connecting seat is fixedly installed on the bottom of the rotor support seat on the side away from the lower rotor fixing assembly; the vibration detection sensor is installed on the outside of the rotor support seat; the upper half of the mounting frame has a U-shaped structure, the mounting frame is located at the bottom of the base and the top of the mounting frame extends to the top of the base through a slot and is fixedly connected to the bottom of the base; the lead screw nut is located at the bottom of the base and is fitted onto the outside of the positive and negative thread lead screw, and the outside of the lead screw nut is fixed to the inside of the upper half of the mounting frame; the first lifting cylinder is located at the bottom of the base and is vertically installed on the lower half of the mounting frame, and the telescopic end of the first lifting cylinder extends to the top of the base through a slot and is fixedly connected to the connecting seat by bolts.

[0016] Furthermore, on the side of the rotor support away from the lower rotor fixing assembly and at the edge of the two first slots, a positioning sleeve is integrally formed around the first slot. Each positioning sleeve has a third slot along the length of the first slot on its sidewall. The first positioning pins of the two lifting rollers near the positioning sleeves extend to the inside of the positioning sleeves, and threaded holes are provided on the first positioning pins corresponding to the third slots. A locking bolt passes through the inside of the third slot, and the end of the locking bolt is threaded into the threaded hole. A quick-release bolt is also provided on the side of the rotor support away from the lower rotor fixing assembly. The quick-release bolt passes through the second slot on the corresponding side of the rotor support, and the end of the quick-release bolt is screwed into the preset mounting hole at the end of the second positioning pin on the corresponding side of the positioning block.

[0017] Furthermore, the rotor correction mechanism includes a second lifting cylinder, a guide plate, a mounting plate, a drilling machine, and a propulsion cylinder. The second lifting cylinder is vertically mounted on the top of the connecting seat via a bracket. The guide plate is located on the side of the second lifting cylinder and is slidably connected to the outer side of the second lifting cylinder along the extension and retraction direction of the second lifting cylinder. The side of the guide plate is fixedly connected to the extension and retraction end of the second lifting cylinder. The mounting plate is fixedly mounted on the top of the guide plate. A bearing plate is horizontally fixed on the mounting plate, and a guide rail arranged in the same direction as the slide rail is fixed on the top surface of the bearing plate. The drilling machine is horizontally slidably mounted on the guide rail on the top of the bearing plate, and the working end of the drilling machine is in the same direction as the guide rail. A laser positioning sensor for drilling positioning is installed on the outside of the drilling machine. The propulsion cylinder is mounted on the bottom of the bearing plate along the length direction of the guide rail, and the extension and retraction end of the propulsion cylinder is fixedly connected to the drilling machine. A laser displacement sensor for detecting the propulsion stroke of the propulsion cylinder is also installed on the bottom of the bearing plate.

[0018] Furthermore, the lower rotor fixing assembly includes a lower V-shaped clamp and a first telescopic cylinder. The lower V-shaped clamp is located on the top of the base and its opening faces upward. A first laser ranging sensor with its detection end facing upward is installed in the middle of the lower V-shaped clamp. There are two first telescopic cylinders, which are respectively vertically fixed in two first mounting holes on the base. The telescopic ends of the two first telescopic cylinders are respectively fixedly installed at both ends of the lower V-shaped clamp.

[0019] Furthermore, the rotating arm assembly includes an arc-shaped arm and a tilting cylinder. The tail end of the arc-shaped arm is hinged to a hinge seat on the base. A support frame is fixed to the front end of the arc-shaped arm. A guide slide rod is fixed to each of the four corners of the bottom of the support frame. Second mounting holes for installing the upper rotor fixing assembly are opened on both sides of the middle part of the support frame. A third mounting hole for installing the rotor drive assembly is also opened on one side of the middle part of the support frame. The tilting cylinder is located on the side of the arc-shaped arm away from the rotor dynamic balance detection mechanism, and the tail end of the tilting cylinder is hinged to the base. The telescopic end of the tilting cylinder is hinged to the middle section of the arc-shaped arm. The extension and retraction of the tilting cylinder drives the arc-shaped arm to tilt around the hinge seat. When the tilting cylinder is extended to its maximum stroke, the support frame fixed to the front end of the arc-shaped arm is directly above the lower rotor fixing assembly and is arranged horizontally.

[0020] Furthermore, the upper rotor fixing assembly includes an upper V-shaped clamp, a second telescopic cylinder, and a phase sensor. There are two upper V-shaped clamps, which are arranged horizontally side by side with their openings facing downwards. When the bow-shaped arm is flipped to its maximum stroke angle in the direction of the rotor dynamic balance detection mechanism, the two upper V-shaped clamps correspond to the lower V-shaped clamp, with the lower V-shaped clamp located between the two upper V-shaped clamps. The two ends of the two upper V-shaped clamps are fixedly connected by a connecting beam. Both ends of the two upper V-shaped clamps are integrally formed with a sliding sleeve for sliding engagement with the guide slide rod. A second laser ranging sensor with its detection end facing downwards is installed in the middle of each of the two upper V-shaped clamps.

[0021] Furthermore, there are multiple second telescopic cylinders, and the fixed ends of the multiple second telescopic cylinders are respectively fixedly installed in the second assembly holes at corresponding positions on the support frame. Each second telescopic cylinder is set at a perpendicular angle to the support frame, and the telescopic end of the second telescopic cylinder is fixedly installed on the connecting beam between the two upper V-shaped clamps. The phase sensor is installed on one side of one of the upper V-shaped clamps, and the detection end of the phase sensor is set vertically downward.

[0022] Furthermore, the rotor drive assembly includes a main support arm, a third telescopic cylinder, and a secondary support arm. The main support arm is located between two upper V-clamps and at the top of the connecting beam. A gap is left between the main support arm and the connecting beam for the main support arm to move up and down. The two ends of the main support arm extend beyond the connecting beam and to the outer sides of the ends of the two upper V-clamps. Two first grooved wheels are rotatably mounted at the middle of the front of the main support arm. There are two third telescopic cylinders, both parallel to the second telescopic cylinders. The fixed ends of the two third telescopic cylinders are respectively fixed in the corresponding third mounting holes on the support frame. The telescopic ends of the third telescopic cylinders are fixed to the back of the main support arm. There are two secondary support arms. The tail ends of the two secondary support arms are respectively hinged to the two ends of the front of the main support arm. A second grooved wheel is rotatably mounted at the front end of the two secondary support arms and on the side away from the front of the main support arm. The two first grooved wheels and the two second grooved wheels are connected by a transmission belt. The portion of the transmission belt between the two second grooved wheels is located at the bottom of the connecting beam. A drive motor for driving the transmission belt is installed at the middle of the back of the main support arm.

[0023] Furthermore, a first hanging ring is integrally formed on the upper edge of both ends of the main support arm, and a second hanging ring is integrally formed on the upper edge of the tail ends of both auxiliary support arms, with a tension spring connecting the first hanging ring and the second hanging ring on the corresponding side.

[0024] Furthermore, a first positioning post is integrally formed on the front side of both ends of the main support arm and near the upper edge to limit the maximum angle of the secondary support arm to rotate outward. A second positioning post is integrally formed on the side of the two secondary support arms close to the main support arm and near the lower edge. An angle stop is integrally formed on the lower edge of both ends of the main support arm. The angle stop and the second positioning post cooperate to limit the maximum angle of the secondary support arm to rotate inward.

[0025] Compared with the prior art, the beneficial effects of the present invention are: This invention integrates dynamic balancing detection, clamping and fixing, and drilling correction functions into one unit, enabling the entire process of rotor dynamic balancing detection, correction, and re-inspection to be completed in a single station. This solves the problems of existing fully automatic correction methods, which require repeated rotor transfer between detection and correction stations, secondary clamping introducing positioning errors, and time-consuming process flow leading to a long correction cycle. At the same time, the entire fixture adopts fully automated operation in the rotor dynamic balancing detection and correction process, which can eliminate the high dependence on operator experience in traditional manual correction operations, thereby greatly improving the quality and efficiency of rotor dynamic balancing correction. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a high-efficiency motor rotor dynamic balancing correction fixture according to the present invention. Figure 1 ; Figure 2This is a schematic diagram of the structure of a high-efficiency motor rotor dynamic balancing correction fixture according to the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the tooling table in this invention; Figure 4 This is a schematic diagram of the rotor dynamic balancing detection mechanism in this invention; Figure 5 This is a schematic diagram of the rotor support unit after disassembly in this invention; Figure 6 This is a schematic diagram of the rotor correction mechanism in this invention. Figure 1 ; Figure 7 This is a schematic diagram of the rotor correction mechanism in this invention. Figure 2 ; Figure 8 This is a schematic diagram of the lower rotor fixing assembly in this invention; Figure 9 This is a schematic diagram of the combined structure of the rotating arm assembly, the upper rotor fixing assembly, and the rotor drive assembly in this invention. Figure 10 This is a schematic diagram of the structure of the rotating arm assembly in this invention; Figure 11 This is a schematic diagram of the upper rotor fixing assembly in this invention; Figure 12 This is a schematic diagram of the rotor drive assembly in this invention; Figure 13 This is a schematic diagram of the structure of the upper rotor fixing component and the rotor driving component combined in this invention.

[0027] In the attached diagram, the components represented by each number are as follows: 1. Tooling table; 101. Base; 102. Slide rail; 103. Through slot; 104. First assembly hole; 105. Hinge seat; 106. Terminal processor; 2. Rotor dynamic balancing detection mechanism; 201. Positive and negative threaded screw; 202. Rotor support unit; 221. Base; 222. Guide column; 223. Left support seat; 224. Right support seat; 225. Receiving groove; 226. First slide groove; 227. Second slide groove; 228. First slot hole; 229. Second slot hole; 2210. Guide groove; 2211. Fixed... 2212, Position sleeve; 2213, Third slot; 2214, Lifting roller; 2215, First positioning post; 2216, Threaded hole; 2217, Positioning block; 2218, Locking bolt; 2219, Quick-release bolt; 2220, Vibration detection sensor; 2221, Connecting seat; 2222, Slider; 2223, Mounting bracket; 2224, Lead screw nut; 2225, First lifting cylinder; 203, Lead screw motor; 204, Synchronous belt; 3, Lower rotor fixing assembly; 301, Lower V-clamp; 302. First laser rangefinder sensor; 303. First telescopic cylinder; 4. Rotor correction mechanism; 401. Second lifting cylinder; 402. Guide plate; 403. Mounting plate; 404. Bearing plate; 405. Guide rail; 406. Drilling machine; 407. Laser positioning sensor; 408. Push cylinder; 409. Laser displacement sensor; 5. Rotary arm assembly; 501. Bow arm; 502. Tilting cylinder; 503. Bearing frame; 504. Second mounting hole; 505. Third mounting hole; 506. Guide slide rod; 6. Upper rotation 601. Sub-fixing assembly; 602. Upper V-clamp; 603. Connecting beam; 604. Second laser rangefinder sensor; 605. Phase sensor; 606. Second telescopic cylinder; 7. Rotor drive assembly; 701. Main support arm; 702. Sub-support arm; 703. First hanging ring; 704. Second hanging ring; 705. Tension spring; 706. First positioning post; 707. Second positioning post; 708. First grooved wheel; 709. Second grooved wheel; 710. Drive belt; 711. Drive motor; 712. Third telescopic cylinder; 713. Angle stop. Detailed Implementation

[0028] 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.

[0029] This invention provides a technical solution: such as Figure 1 - Figure 13The high-efficiency motor rotor dynamic balancing correction fixture shown includes a fixture table 1, a rotor dynamic balancing detection mechanism 2, a rotor correction mechanism 4, a lower rotor fixing assembly 3, a rotating arm assembly 5, an upper rotor fixing assembly 6, and a rotor drive assembly 7. The rotor dynamic balancing detection mechanism 2 is installed on the front side of the fixture table 1 to support the rotor and detect the rotor's eccentricity. As the core bearing mechanism of the rotor dynamic balancing detection station, the rotor dynamic balancing detection mechanism 2 provides stable rotational support for the rotor to be corrected. At the same time, it collects vibration signals in real time during the rotor's rotation. Combined with the data collected synchronously by the phase sensor 604, the unbalance amplitude and circumferential phase data of the rotor are finally calculated, providing accurate numerical basis for subsequent correction processing.

[0030] There are two sets of rotor correction mechanisms 4, which are respectively installed on both sides of the rotor dynamic balance detection mechanism 2. The rotor is automatically corrected according to the eccentricity value detected by the rotor dynamic balance detection mechanism 2. In this design, the two sets of rotor correction mechanisms 4 correspond to the correction end faces at both ends of the rotor. With the help of the relevant detection data, the drilling and weight removal operation of the rotor end face can be performed synchronously or independently, so that the rotor dynamic balance detection and drilling and weight removal correction can be completed in the same station without the need to transfer the station. This can effectively reduce the positioning error and time loss caused by process flow.

[0031] The lower rotor fixing assembly 3 is installed in the middle position of the rotor dynamic balancing testing mechanism 2. The lower rotor fixing assembly 3 is arranged along the longitudinal central axis of the tooling table 1, corresponding to the support position of the middle section of the rotor. In the calibration process, it supports and limits the rotor from below. Together with the upper rotor fixing assembly 6, it forms a circumferential constraint on the motor rotor to prevent the rotor from rotating circumferentially or running radially during the rotor dynamic balancing calibration process, so as to ensure the smooth progress of the calibration work. The tail end of the rotating arm assembly 5 is hinged to the rear side of the table surface of the tooling table 1. The upper rotor fixing assembly 6 is installed at the front end of the rotating arm assembly 5 and is used to cooperate with the lower rotor fixing assembly 3 to radially clamp and fix the motor rotor placed on the rotor dynamic balancing testing mechanism 2, so as to facilitate the rotor calibration mechanism 4 to perform calibration processing on the motor rotor. The rotor drive assembly 7 is located inside the upper rotor fixing assembly 6 and fixed to the front end of the rotating arm assembly 5, and is used to drive the rotor to be calibrated. The rotor rotates during the dynamic balancing test to facilitate the monitoring of the eccentricity of the motor rotor by the rotor dynamic balancing test mechanism 2. The rotating arm assembly 5 uses the hinge point as the fulcrum to complete the upward lifting and downward locking flipping action. When the rotating arm assembly 5 is in the lifted state, it facilitates the loading and unloading of the rotor. When it is in the locked state, it ensures that the rotor drive assembly 7 and the upper rotor fixing assembly 6 are accurately positioned directly above the test station, which facilitates the dynamic balancing test and correction operation of the rotor. In addition, the rotor drive assembly 7 uses friction transmission to contact the rotor shaft. During the dynamic balancing test stage, it drives the rotor to rotate stably at a set speed, so that the rotor dynamic balancing test mechanism 2 can collect continuous and stable vibration signals to ensure the accuracy of the unbalance detection results. During the rotor dynamic balancing correction stage, the phase sensor 604 can be used to adjust the circumferential angle of the rotor so that the position to be de-weighted is aligned with the processing direction of the correction mechanism.

[0032] The entire fixture adopts an integrated design, which integrates the rotor dynamic balance detection, clamping and fixing and drilling correction functions into one, avoiding repeated transfer and secondary clamping of the rotor between the detection and correction stations, thereby effectively shortening the correction cycle of a single rotor and improving the operation efficiency of rotor dynamic balance correction.

[0033] In this embodiment, the tooling table 1 includes a base 101, which serves as the carrier of the entire tooling structure and provides a stable mounting foundation for each component. Two parallel slide rails 102 are horizontally installed on the front side of the table at the top of the base 101. The two parallel slide rails 102 extend horizontally along the base 101, providing precise linear guidance for the spacing adjustment of the rotor dynamic balancing detection mechanism 2. A long strip-shaped through groove 103 is provided between the two slide rails 102 along the length direction of the slide rails 102. The through groove 103 is mainly used to provide a channel for the transmission component at the bottom of the rotor dynamic balancing detection mechanism 2 to connect with the upper support unit when the rotor dynamic balancing detection mechanism 2 moves horizontally, and also to provide clearance space for the horizontal movement of the upper support unit. A first mounting hole 104 is provided on the outer side of the two slide rails 102 and in the middle position for embedding the lower rotor fixing component 3.

[0034] In this embodiment, a terminal processor 106 with built-in display function and a hinge seat 105 for mounting the swing arm assembly 5 are also installed on the top of the base 101. The hinge seat 105 and the first mounting hole 104 are both located on the longitudinal central axis of the base 101. It should be noted that the terminal processor 106 is a smart terminal computer commonly used in the field of high-end equipment manufacturing. It integrates data acquisition, calculation control and human-computer interaction function modules. By receiving data and signals from the rotor dynamic balancing detection mechanism 2, rotor correction mechanism 4, lower rotor fixing assembly 3, swing arm assembly 5, upper rotor fixing assembly 6 and rotor drive assembly 7, it automatically calculates the motor rotor imbalance. The system measures the magnitude and phase of the rotor and outputs control commands to each component to achieve automated dynamic balancing of the motor rotor. It also displays relevant test values, correction parameters, and equipment operating status. It should be noted that before testing the dynamic balance of a motor rotor of a certain model, the operator must input the relevant parameters of the motor rotor of that model through the input module on the terminal processor 106, including the length, diameter, and rotor body material. This provides the terminal processor 106 with the parameter basis for controlling the rotor dynamic balancing test mechanism 2, rotor correction mechanism 4, lower rotor fixing component 3, swing arm component 5, upper rotor fixing component 6, and rotor drive component 7 to make corresponding dynamic adjustments for that model.

[0035] In this embodiment, the rotor dynamic balancing detection mechanism 2 includes a lead screw 201 with reverse thread, a lead screw motor 203, and a rotor support unit 202. The lead screw 201 with reverse thread is horizontally mounted on the bottom of the base 101 via a bearing seat and located between two slide rails 102. The bearing seat provides rotational support at both ends of the lead screw, bears radial and axial loads, and ensures smooth operation of the lead screw. The lead screw motor 203 is mounted on the bottom of the base 101 at one end of the lead screw 201. Synchronous pulleys are installed between the output end of the lead screw motor 203 and the end of the lead screw 201. The two synchronous pulleys are connected by a synchronous belt 204. The lead screw motor 203 serves as the power source for adjusting the spacing of the rotor dynamic balancing detection mechanism 2. It adopts a servo or stepper motor with a reduction mechanism, which can precisely control the rotation angle and thus precisely control the movement distance of the support unit. There are two sets of rotor support units 202, which are symmetrically arranged with the longitudinal central axis of the base 101 as the center. Both sets of rotor support units 202 are located on the top of the base 101 and are slidably connected to the two slide rails 102. The bottom of the two sets of rotor support units 202 passes through the through groove 103 and is helically driven by the threaded sections at both ends of the positive and negative thread screws 201 to form a screw drive mechanism. In this design, the rotor dynamic balance detection mechanism 2 uses the positive and negative thread screws 201 to drive the dual rotor support units 202 to perform stepless adjustment of the spacing. During the adjustment process, the two sets of rotor support units 202 are always symmetrical with respect to the central axis, ensuring that the rotor center always falls on the longitudinal central axis of the tooling without additional centering adjustment. This allows the rotor dynamic balance detection mechanism 2 to be adapted to motor rotors with different shaft lengths and different core spans, thereby improving the versatility of the tooling.

[0036] In this embodiment, the rotor support unit 202 includes a base 221, a rotor support seat, lifting rollers 2213, positioning blocks 2216, connecting seats 2221, vibration detection sensors 2220, mounting brackets 2223, lead screw nuts 2224, and a first lifting cylinder 2225. Both ends of the base 221 are slidably connected to two slide rails 102 on the top of the base 101 through installed sliders 2222. The top of the base 221 has two vertically fixed guide columns 222. The base 221 serves as the load-bearing structure of the rotor support unit 202. The sliders 2222 cooperate with the slide rails 102 to achieve lateral sliding. The two vertical guide columns 222 provide guidance for the lifting and lowering movement of the rotor support seat, restricting the horizontal degree of freedom of the rotor support seat so that it can only move up and down in the vertical direction.

[0037] The rotor support base consists of a left support base 223 and a right support base 224 connected by bolts. The left support base 223 and the right support base 224 are the same size. The rotor support base adopts a split structure design with left and right sides, which facilitates the assembly and subsequent maintenance of the rotor support base.

[0038] A V-shaped receiving groove 225 is provided at the center of the top of the rotor support. A first sliding groove 226 is laterally provided inside the rotor support near the top, with its middle section communicating with the receiving groove 225. The first sliding groove 226 is used to accommodate the lifting roller 2213 and provide it with space for lateral movement. The communication between the middle section of the first sliding groove 226 and the receiving groove 225 allows the roller rim to extend into the receiving groove 225 and contact the rotor shaft. A second sliding groove 227 is provided inside the rotor support along its central axis, with its upper end communicating with the first sliding groove 226. The second sliding groove 227 is arranged vertically and is used to accommodate the positioning block 2216 and provide it with lifting guidance. A [missing information - likely a specific type of sliding groove] is provided inside the rotor support on both sides of the second sliding groove 227. The vertical guide groove 2210, with its bottom end open to the outside, has a first slot 228 in the middle of the two side walls of the first slide groove 226 and located on both sides of the receiving groove 225. This slot is used to constrain the movement trajectory of the axle of the lifting roller 2213, so that the lifting roller 2213 can only move laterally along the first slide groove 226. The second slide groove 227 has a second slot 229 in the middle of the two side walls along the length of the second slide groove 227. This slot is used to constrain the lifting stroke and movement direction of the positioning block 2216. The two guide posts 222 on the top of the base 221 are slidably inserted into the two guide grooves 2210. The guide grooves 2210 and the guide posts 222 on the base 221 cooperate to allow the rotor support to move up and down in the vertical direction.

[0039] In this embodiment, there are two lifting rollers 2213, which are located in the first sliding grooves 226 on both sides of the receiving groove 225. The two lifting rollers 2213 are symmetrically arranged with the receiving groove 225 as the center, and the wheel edge of the two lifting rollers 2213 protrudes from the inner side of the receiving groove 225 on the side closer to each other. The two lifting rollers 2213 together form the rolling support of the rotor journal. When the rotor is placed between the two lifting rollers 2213, rolling friction is formed between the rotor journal and the two lifting rollers 2213, so that the motor rotor can rotate smoothly under the action of the rotor drive assembly 7. The symmetrical design of the two lifting rollers 2213 can evenly distribute the weight of the motor rotor onto the two lifting rollers 2213, and also achieve the automatic centering effect of the motor rotor with the help of the two lifting rollers 2213.

[0040] Both ends of the central axle of the two lifting rollers 2213 are integrally formed with a flat first positioning post 2214. The first positioning post 2214 is slidably inserted into the corresponding first slot 228 on the rotor support seat, and the thickness of the first positioning post 2214 is adapted to the width of the first slot 228. After the flat first positioning post 2214 at both ends of the central axle of the lifting rollers 2213 is embedded in the first slot 228, it slides laterally along the first slot 228 to adjust the distance between the two lifting rollers 2213, thereby adapting to rotor journals of different diameters.

[0041] In this embodiment, the positioning block 2216 is slidably inserted into the second groove 227 inside the rotor support. The top of the positioning block 2216 is an isosceles triangle structure, and the top of the positioning block 2216 is directly opposite the center position between the two lifting rollers 2213. The two inclined sides of the top of the positioning block 2216 are respectively set towards the two lifting rollers 2213. The positioning block 2216 plays a role in quick positioning and correction during the spacing adjustment of the two lifting rollers 2213. When the spacing of the two lifting rollers 2213 is adjusted, the top of the isosceles triangle of the positioning block 2216 can be used as a symmetry reference, so that the inner side of the two lifting rollers 2213 respectively fits the corresponding inclined side, ensuring that the two rollers remain symmetrical with respect to the center of the receiving groove 225 after adjustment, and ensuring that the center position of the motor rotor is accurate after placement. A second positioning post 2217 is integrally formed at the middle position of both sides of the positioning block 2216 and is slidably inserted into the second slot 229.

[0042] In this embodiment, the connecting seat 2221 is fixedly installed on the bottom of the rotor support seat on the side away from the lower rotor fixing assembly 3. The connecting seat 2221 serves as a connecting component between the rotor support seat and the first lifting cylinder 2225, transmitting the pushing force of the first lifting cylinder 2225 to the rotor support seat, thereby driving the rotor support seat to move up and down along the guide column 222 to adjust the height of the rotor support seat. The vibration detection sensor 2220 is installed on the outside of the rotor support seat. The vibration detection sensor 2220 is a piezoelectric or magnetoelectric vibration sensor and is installed close to the outer wall of the rotor support seat. It can directly detect the vibration signal generated when the rotor rotates, convert the mechanical vibration into an electrical signal and transmit it to the terminal processor 106. After processing by the terminal processor 106, the unbalance value of the rotor is obtained.

[0043] The upper half of the mounting bracket 2223 has a U-shaped structure. The mounting bracket 2223 is located at the bottom of the base 101, and its top extends through the slot 103 to the top of the base 101, where it is fixedly connected to the bottom of the base 221. The first lifting cylinder 2225 is located at the bottom of the base 101 and is vertically mounted on the lower half of the mounting bracket 2223. The telescopic end of the first lifting cylinder 2225 extends through the slot 103 to the top of the base 101 and is fixedly connected to the connecting seat 2221 by bolts. The U-shaped structure of the upper half of the mounting bracket 2223 spans the outside of the positive and negative threaded screws 201. The top of the mounting bracket 2223 is fixedly connected to the base 221, while the lower half of the mounting bracket 2223 is used to mount the first lifting cylinder 2225. This integrates the transmission, guiding, and driving components into a modular unit, along with the support unit. Synchronous lateral movement; the lead screw nut 2224 is located at the bottom of the base 101 and is fitted on the outside of the positive and negative threaded lead screw 201. The outer side of the lead screw nut 2224 is fixed to the inner side of the upper half of the mounting frame 2223. The lead screw nut 2224 and the positive and negative threaded lead screw 201 are screwed together, converting the rotational motion of the positive and negative threaded lead screw 201 into the linear motion of the mounting frame 2223, thereby driving the entire set of rotor support units 202 to move laterally along the slide rail 102. It should be further explained that the function of the first lifting cylinder 2225 is mainly to adjust the overall height of the rotor support seat, and the first lifting cylinder 2225 installed in the two sets of rotor support units 202 can be independently telescopically controlled, so that the support height of the two sets of rotor support units 202 can be adjusted separately to adapt to special motor rotors with different journal sizes at both ends of the rotor.

[0044] In this embodiment, a positioning sleeve 2211 is integrally formed around the first slot 228 on the side of the rotor support away from the lower rotor fixing assembly 3 and at the edge of the two first slots 228. Each positioning sleeve 2211 has a third slot 2212 formed on its sidewall along the length of the first slot 228. The first positioning post 2214 of the two lifting rollers 2213 near the positioning sleeve 2211 extends to the inside of the positioning sleeve 2211, and the first positioning post 2214 corresponds to the third slot. A threaded hole 2215 is provided at position 2212. A locking bolt 2218 passes through the inner side of the third slot 2212. The end of the locking bolt 2218 is threaded into the threaded hole 2215. The spacing of the lifting roller 2213 is adjusted manually. During adjustment, the locking bolt 2218 is loosened, and the lifting roller 2213 is pushed along the first slot 228 to the target spacing. After symmetrical positioning and correction are completed with the help of the positioning block 2216, the locking bolt 2218 is tightened to adjust the position of the lifting roller 2213. The rotor support base is also equipped with a quick-release bolt 2219 on the side away from the lower rotor fixing assembly 3. The quick-release bolt 2219 passes through the second slot 229 on the corresponding side of the rotor support base, and the end of the quick-release bolt 2219 is screwed into the preset mounting hole at the end of the second positioning post 2217 on the corresponding side of the positioning block 2216. The quick-release bolt 2219 is used to lock the height position of the positioning block 2216. When the lifting roller 2213 adjusts the spacing, the positioning block 2216 is pushed up to the specified height. The height of the positioning block 2216 is locked by the quick-release bolt 2219, providing a stable calibration reference for adjusting the distance between the two lifting rollers 2213. After the distance between the lifting rollers 2213 is adjusted, the quick-release bolt 2219 is loosened, the positioning block 2216 is moved down to the bottom of the second slide groove 227, and then the positioning block 2216 is locked again by the quick-release bolt 2219 to prevent the positioning block 2216 from vibrating during the rotor dynamic balancing test, which would affect the accuracy of the detection data of the vibration detection sensor 2220.

[0045] In this embodiment, the rotor correction mechanism 4 includes a second lifting cylinder 401, a guide plate 402, a mounting plate 403, a drilling machine 406, and a propulsion cylinder 408. The second lifting cylinder 401 is vertically mounted on the top of the connecting seat 2221 via a bracket. The rotor correction mechanism 4 moves laterally synchronously with the rotor support unit 202, and can always be aligned with the correction end faces at both ends of the rotor without the need to adjust the lateral position of the correction mechanism separately. In addition, the second lifting cylinder 401 is used to drive the drilling machine 406 to lift as a whole to adapt to the drilling height of rotors with different diameters, so that the drill bit can be aligned with the radius to be processed on the rotor end face.

[0046] The guide plate 402 is located on the side of the second lifting cylinder 401 and is slidably connected to the outer side of the second lifting cylinder 401 along the extension and retraction direction of the second lifting cylinder 401. The side of the guide plate 402 is fixedly connected to the extension and retraction end of the second lifting cylinder 401. The guide plate 402 and the side of the cylinder body of the second lifting cylinder 401 form a sliding guide fit, providing lateral support for the lifting movement. This can prevent the drilling machine 406 from swaying due to reaction force during operation, thereby effectively improving the stability of drilling and weight removal processing. The mounting plate 403 is fixedly installed on the guide plate. At the top of plate 402, a bearing plate 404 is horizontally fixed on mounting plate 403. A guide rail 405, which is arranged in the same direction as slide rail 102, is fixed on the top surface of bearing plate 404. Mounting plate 403 and bearing plate 404 constitute the mounting base of drilling machine 406, providing a stable mounting plane for guide rail 405, propulsion cylinder 408 and drilling machine 406. The guide rail 405 is arranged in a transverse direction, providing precise linear guidance for the feed movement of drilling machine 406, ensuring that the drilling feed direction is perpendicular to the rotor end face, and ensuring the accuracy of the drilling direction.

[0047] The drilling machine 406 is horizontally slidably mounted on the guide rail 405 on the top of the support plate 404, and the working end of the drilling machine 406 is in the same direction as the guide rail 405. A laser positioning sensor 407 for drilling positioning is installed on the outside of the drilling machine 406. The drilling machine 406 uses a high-precision drilling power head. When performing dynamic balancing correction of the motor rotor, it drives the drill bit to rotate at high speed to achieve drilling and weight removal. The imbalance is offset by removing the material on the unbalanced side of the rotor. The laser positioning sensor 407 emits a visible laser beam and projects it onto the end face of the rotor to correct the position of the drilling point before the drilling operation, ensuring that the drilling position corresponds accurately with the preset imbalance point.

[0048] The propulsion cylinder 408 is installed at the bottom of the support plate 404 along the length of the guide rail 405, and the telescopic end of the propulsion cylinder 408 is fixedly connected to the drilling machine 406. The propulsion cylinder 408 provides driving force for the drilling feed of the drilling machine 406. When the propulsion cylinder 408 extends, it pushes the drilling machine 406 to move along the guide rail 405 towards the rotor to complete the drilling feed. When the propulsion cylinder 408 retracts, it drives the drill bit to exit the workpiece. A laser displacement sensor 409 for detecting the propulsion stroke of the propulsion cylinder 408 is also installed at the bottom of the support plate 404. The laser displacement sensor 409 can detect the feed displacement of the drilling machine 406 in real time and calculate the actual drilling depth. By combining the correspondence between the unbalance mass and the drilling depth through the terminal processor 106, the feed stroke can be precisely controlled to control the quality of drilling and weight removal, avoid over-drilling or under-drilling, and reduce the number of correction iterations.

[0049] In this embodiment, the lower rotor fixing assembly 3 includes a lower V-shaped clamp 301 and a first telescopic cylinder 303. The lower V-shaped clamp 301 is located on the top of the base 101 with its opening facing upwards. The turning angle of the center of the lower V-shaped clamp 301 is 90 degrees. A first laser rangefinder 302 with its detection end facing upwards is installed at the middle position of the lower V-shaped clamp 301. There are two first telescopic cylinders 303, which are respectively vertically fixed in two first mounting holes 104 on the base 101. The telescopic ends of the two first telescopic cylinders 303 are respectively fixedly installed in the lower V-shaped clamp 301. At both ends, two first telescopic cylinders 303 synchronously drive the lower V-clamp 301 to rise and fall, and the support height can be adjusted according to the rotor diameter. The first laser range sensor 302 is used to detect the height between the lower surface of the rotor shaft and the lower V-clamp 301. Utilizing the isosceles structure and fixed 90-degree included angle structure of the lower V-clamp 301, as well as the relevant rotor size, diameter and other data input by the terminal processor 106 before rotor processing, the shortest distance from the rotor surface to the lower V-clamp 301 can be directly calculated, providing accurate data feedback for clamping stroke control.

[0050] In this embodiment, the rotating arm assembly 5 includes an arc-shaped arm 501 and a tilting cylinder 502. The tail end of the arc-shaped arm 501 is hinged to a hinge seat 105 on the base 101. A support frame 503 is fixed to the front end of the arc-shaped arm 501. A guide slide rod 506 is fixed at each of the four corners of the bottom of the support frame 503. Second mounting holes 504 for mounting the upper rotor fixing assembly 6 are opened on both sides of the middle part of the support frame 503. A third mounting hole 505 for mounting the rotor drive assembly 7 is also opened on one side of the middle part of the support frame 503. The tilting cylinder 502 is located on the side of the arc-shaped arm 501 away from the rotor dynamic balance detection mechanism 2. The tail end of the tilting cylinder 502 is hinged to the base 101. The telescopic end of the tilting cylinder 502 is hinged to the middle section of the arc-shaped arm 501. The extension and retraction of the tilting cylinder 502 drives the arc-shaped arm 501 to rotate around the hinge seat. 105. When the tilting cylinder 502 extends to its maximum stroke, the support frame 503 fixed at the front end of the bow arm 501 is directly above the lower rotor fixing assembly 3 and is arranged horizontally, so that the upper rotor fixing assembly 6 and the rotor drive assembly 7 are synchronously positioned directly above the rotor, providing an accurate position reference for subsequent inspection and calibration operations. The support frame 503 serves as the mounting base for the upper rotor fixing assembly 6 and the rotor drive assembly 7, and has integrated mounting holes for mounting the upper rotor fixing assembly 6 and the rotor drive assembly 7, allowing the upper rotor fixing assembly 6 and the rotor drive assembly 7 to tilt synchronously with the bow arm 501. The four guide slide rods 506 extend downward to provide guidance for the lifting and lowering of the upper rotor fixing assembly 6, ensuring the straightness of the upper rotor fixing assembly 6 during the lifting and lowering process and preventing the upper rotor fixing assembly 6 from tilting or jamming during the lifting and lowering process.

[0051] In this embodiment, the upper rotor fixing assembly 6 includes an upper V-shaped clamp 601, a second telescopic cylinder 605, and a phase sensor 604. There are two upper V-shaped clamps 601, with a turning angle of 90 degrees at the center. The two upper V-shaped clamps 601 are arranged horizontally side by side with their openings facing downwards. When the bow-shaped arm 501 is flipped to its maximum stroke angle towards the rotor dynamic balance detection mechanism 2, the two upper V-shaped clamps 601 correspond vertically to the lower V-shaped clamp 301, with the lower V-shaped clamp 301 located between the two upper V-shaped clamps 601. The two upper V-shaped clamps 601 correspond to two fixed positions on the rotor, forming a three-point clamping layout with the single lower V-shaped clamp 301 below. This design effectively improves the stability of the upper rotor fixing assembly 6 and the lower rotor fixing assembly 3 in clamping and fixing the rotor, thereby effectively limiting the radial runout and circumferential rotation of the rotor. Furthermore, the downward-facing V-shaped structure design, in conjunction with the lower V-shaped clamp 301, allows for automatic centering during clamping, ensuring the rotor axis coincides with the clamping center. The two ends of the two upper V-shaped clamps 601 are fixedly connected by a connecting beam 602, making them a single unit. This allows for synchronous lifting and lowering, ensuring consistent clamping action and uniform force distribution. Both ends of the two upper V-shaped clamps 601 are integrally formed with sliding sleeves for sliding engagement with the guide slide rod 506. These sleeves engage with the guide slide rod 506 on the support frame 503, guiding the upper... The V-clamp 601 moves smoothly up and down to prevent lateral displacement of the upper V-clamp 601 during clamping. A second laser ranging sensor 603 with its detection end facing downwards is installed in the middle of each of the two upper V-clamps 601. The two second laser ranging sensors 603 correspond to two positions on the rotor shaft. Before driving the rotor to rotate, the distance between the two second laser ranging sensors 603 and the rotor surface is detected to determine if the rotor is level. Specifically, when the values ​​detected at the two locations are consistent or within the allowable error range, it indicates that the rotor meets the leveling requirements for dynamic balance testing. When the values ​​differ, the terminal processor 106 controls the first of the two sets of rotor support units 202... The lifting cylinder 2225 performs height adaptive adjustment until the distance values ​​at two locations are the same or meet the range requirements, at which point the rotor reaches the level required for dynamic balance testing. During the rotor dynamic balance correction process, when the upper rotor fixing component 6 clamps the rotor, the second laser distance sensor 603 can detect the distance between the upper V-clamp 601 and the rotor surface in real time. Utilizing the isosceles structure and fixed 90-degree angle structure of the upper V-clamp 601, as well as the relevant rotor dimensions, diameter, and other data input by the terminal processor 106 before rotor processing, the shortest distance from the rotor surface to the upper V-clamp 601 can be directly calculated, providing accurate data feedback for clamping stroke control.

[0052] In this embodiment, there are multiple second telescopic cylinders 605. The fixed ends of the multiple second telescopic cylinders 605 are respectively fixedly installed in the second assembly holes 504 at corresponding positions on the support frame 503. Each second telescopic cylinder 605 is set at a perpendicular angle to the support frame 503, and the telescopic end of the second telescopic cylinder 605 is fixedly installed on the connecting beam 602 between the two upper V-shaped clamps 601. When the upper rotor fixing assembly 6 and the lower rotor fixing assembly 3 perform clamping operations on the motor rotor, the distance data collected in real time by the first laser ranging sensor 302 and the second laser ranging sensor 603 are synchronously transmitted to the terminal. On the processor 106, based on the relevant parameters input before processing for the corresponding model of rotor, the terminal processor 106 calculates the closest distance between the upper V-clamp 601 and the lower V-clamp 301 and the rotor surface, thereby accurately obtaining the lifting stroke parameters of the upper V-clamp 601 and the lower V-clamp 301, and using the parameters to control the lifting and lowering of the first telescopic cylinder 303 and the second telescopic cylinder 605, thereby limiting the clamping stroke of the upper V-clamp 601 and the lower V-clamp 301, ensuring that the upper and lower V-clamps 301 accurately clamp the rotor, while preventing the rotor from shifting its original position or damaging the motor rotor body due to excessive clamping stroke.

[0053] In addition, in order to effectively limit the rotor circumferentially with the lower V-clamp 301 and the upper V-clamp 601, and to avoid damaging the rotor surface, a rubber pad with a thickness of 3 to 5 mm is installed on both sides of the lower V-clamp 301 and the upper V-clamp 601. This can increase the friction between the lower V-clamp 301 and the upper V-clamp 601 and the rotor surface, and also prevent the rubber pad from being too thick, which would reduce the stiffness of the lower V-clamp 301 and the upper V-clamp 601 in clamping the rotor.

[0054] Phase sensor 604 is installed on one side of one of the upper V-clamps 601, with the detection end of phase sensor 604 facing vertically downward. Phase sensor 604 adopts photoelectric or eddy current phase detection probe, which can identify the preset reference mark on the rotor end face or features such as keyways and protrusions on the shaft. During rotor rotation, it outputs a phase reference signal. The terminal processor 106 couples the vibration amplitude signal collected by vibration detection sensor 2220 with the phase reference signal to obtain the mass magnitude and corresponding circumferential angle of the unbalance at both ends of the rotor, providing accurate data support for subsequent correction operations.

[0055] In this embodiment, the rotor drive assembly 7 includes a main support arm 701, a third telescopic cylinder 712, and a secondary support arm 702. The main support arm 701 is located between two upper V-shaped clamps 601 and at the top of the connecting beam 602. A gap is left between the main support arm 701 and the connecting beam 602 for the main support arm 701 to move up and down. The rotor drive assembly 7 and the upper rotor fixing assembly 6 adopt independent lifting designs, and the two can perform lifting actions separately without interfering with each other. The two ends of the main support arm 701 extend beyond the connecting beam 602 and extend to the outside of the ends of the two upper V-shaped clamps 601. Two first grooved wheels 708 are rotatably installed at the middle position of the front of the main support arm 701. There are two third telescopic cylinders 712, both of which are parallel to the second telescopic cylinder 605. The fixed ends of the two third telescopic cylinders 712 are respectively fixed in the corresponding third mounting holes 505 on the support frame 503. The extension of the third telescopic cylinder 712... The retractable end is fixed to the back of the main support arm 701. The third telescopic cylinder 712 is used to drive the main support arm 701 to lift and lower as a whole, thereby driving the transmission belt 710 to move up and down. There are two auxiliary support arms 702. The tail ends of the two auxiliary support arms 702 are respectively hinged to the two ends of the front of the main support arm 701. A second grooved wheel 709 is rotatably installed on the front end of the two auxiliary support arms 702 and on the side away from the front of the main support arm 701. The two first grooved wheels 708 and the two second grooved wheels 709 are connected by a transmission belt 710. The part of the transmission belt 710 between the two second grooved wheels 709 is located at the bottom of the connecting beam 602. A drive motor 711 for driving the transmission belt 710 is installed in the middle of the back of the main support arm 701. The drive motor 711 is a speed-regulating motor, which can adjust the rotor speed according to the detection requirements to ensure the stability and accuracy of the detection signal.

[0056] During the detection stage of dynamic balancing of the rotor to obtain the unbalance, the third telescopic cylinder 712 extends, causing the entire main support arm 701 to move down, pressing the transmission belt 710 onto the rotor, and driving the rotor to rotate by friction.

[0057] During rotor dynamic balancing, the terminal processor 106 adjusts the circumferential angle of the rotor via the rotor drive assembly 7 based on the angle and mass data of the unbalanced points at both ends of the rotor, calculated jointly by the phase sensor 604 and the vibration detection sensor 2220. This aligns the position to be weighted with the rotor balancing mechanisms 4 on both sides. After the angle adjustment is completed, the drive motor 711 stops, and the second telescopic cylinder 605 and the first telescopic cylinder 303 extend, allowing the upper rotor fixing assembly 6 and the lower rotor fixing assembly 3 to simultaneously clamp and position the rotor. Subsequently, the rotor balancing mechanism 4 drills at the corresponding points on the rotor. In the de-weighting operation, after the first round of drilling and de-weighting is completed, only the second telescopic cylinder 605 and the first telescopic cylinder 303 need to retract, so that the upper rotor fixing component 6 and the lower rotor fixing component 3 release the circumferential limit on the rotor. The drive motor 711 restarts and drives the rotor to rotate through transmission, and the rotor dynamic balance is re-checked. If the dynamic balance value is still unqualified, the above correction operation is repeated with reference to the relevant unbalance amount and phase angle value detected in the re-detection. The entire detection and correction process is completed at the same station, without the need to transfer the rotor back and forth, which can effectively reduce the process flow time and improve the correction efficiency.

[0058] In this embodiment, the upper edges of both ends of the main support arm 701 are integrally formed with first hanging rings 703, and the upper edges of the tail ends of the two auxiliary support arms 702 are integrally formed with second hanging rings 704. A tension spring 705 is connected between the first hanging ring 703 and the second hanging ring 704 on the corresponding side. The tension spring 705 acts between the main support arm 701 and the auxiliary support arm 702, so that the front end of the auxiliary support arm 702 is always flipped upward under normal conditions, providing tension support when the subsequent transmission belt 710 contacts the rotor surface. This avoids the transmission belt 710 from being too loose and slipping, and also prevents the transmission belt 710 from being too tight, which would cause excessive additional load and affect the stability of rotor rotation and detection accuracy. It should also be noted that the tension of the tension spring 705 can be adjusted by replacing the tension spring 705 with a different elastic coefficient to adapt to the detection of rotors of different specifications.

[0059] In this embodiment, a first positioning post 706 is integrally formed on the front side of both ends of the main support arm 701 and near the upper edge. The first positioning post 706 abuts against the upper part of the tail end of the auxiliary support arm 702 from the outside, limiting the extreme angle of the auxiliary support arm 702 to rotate outward, and preventing the auxiliary support arm 702 from swinging outward too much, which would cause the transmission belt 710 to become too loose or even fall off. A second positioning post 707 is integrally formed on the side of the tail end of both auxiliary support arms 702 that is close to the main support arm 701 and near the lower edge. An angle stop 713 is integrally formed on the lower edge of both ends of the main support arm 701. The angle stop 713 and the second positioning post 707 cooperate to limit the maximum angle of the auxiliary support arm 702 to rotate inward, which is also to prevent the auxiliary support arm 702 from retracting too much, which would cause the transmission belt 710 to become too loose or even fall off.

[0060] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0061] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency motor rotor dynamic balancing fixture, characterized in that, Including tooling tables, A rotor dynamic balancing testing mechanism is installed on the front side of the tooling table to support the rotor and detect the rotor's eccentricity value. The rotor correction mechanism consists of two sets, which are respectively installed on both sides of the rotor dynamic balance detection mechanism. The rotor correction mechanism automatically corrects the motor rotor based on the eccentricity value detected by the rotor dynamic balance detection mechanism. The lower rotor fixing assembly is installed at the middle position of the rotor dynamic balance detection mechanism; A rotating arm assembly, the tail end of which is hinged to the rear side of the workbench table. The upper rotor fixing assembly is installed at the front end of the swing arm assembly and is used to cooperate with the lower rotor fixing assembly to radially clamp and fix the motor rotor placed on the rotor dynamic balance detection mechanism, so as to facilitate the rotor correction mechanism to perform correction processing on the motor rotor. A rotor drive assembly is located inside the upper rotor fixing assembly and fixed to the front end of the rotating arm assembly. It is used to drive the rotor to be dynamically balanced for testing to rotate, so that the rotor dynamic balancing testing mechanism can monitor the eccentricity value of the motor rotor.

2. The high-efficiency motor rotor dynamic balancing fixture according to claim 1, characterized in that, The tooling table includes a base, and two parallel slide rails are horizontally installed on the front side of the table at the top of the base. A long strip-shaped through groove is opened between the two slide rails along the length of the slide rails. A first assembly hole is provided on the outer side of the two slide rails and in the middle position. The base is also equipped with a terminal processor with built-in display function and a hinge seat for mounting the rotating arm assembly. The hinge seat and the first mounting hole are both located on the longitudinal central axis of the base.

3. The high-efficiency motor rotor dynamic balancing fixture according to claim 2, characterized in that, The rotor dynamic balancing detection mechanism includes: A forward and reverse threaded screw, wherein the forward and reverse threaded screw is horizontally mounted on the bottom of the base and located between two slide rails via a bearing with a seat; A lead screw motor is mounted on the bottom of a base at one end of a positive and negative thread lead screw. Synchronous pulleys are installed between the output end of the lead screw motor and the end of the positive and negative thread lead screw, and the two synchronous pulleys are connected by a synchronous belt drive. The rotor support unit consists of two sets arranged symmetrically around the longitudinal central axis of the base. Both sets of rotor support units are located on the top of the base and are slidably connected to two slide rails. The bottoms of the two sets of rotor support units pass through the slots and are respectively engaged with the threaded sections at both ends of the positive and negative tooth screws to form a screw drive mechanism.

4. The high-efficiency motor rotor dynamic balancing fixture according to claim 3, characterized in that, The rotor support unit includes: The base has two ends slidably connected to two slide rails on the top of the base via installed sliders, and the top of the base has two guide posts fixed vertically. The rotor support base consists of a left support base and a right support base connected by bolts. The left and right support bases are the same size. A V-shaped receiving groove is formed at the middle of the top of the rotor support base. A first sliding groove is formed laterally inside the rotor support base near the top, and the middle of the first sliding groove is connected to the receiving groove. A second sliding groove is formed inside the rotor support base along the central axis, and its upper end is connected to the first sliding groove. A vertical guide groove is formed inside the rotor support base on both sides of the second sliding groove, and its bottom end is connected to the outside. A first slot hole is formed in the middle of the groove wall on both sides of the first sliding groove, and a second slot hole is formed in the middle of the groove wall on both sides of the second sliding groove, along the length of the second sliding groove. Two guide posts at the top of the base are slidably inserted into the two guide grooves respectively. The lifting rollers are two in number and are located in the first grooves on both sides of the receiving groove. The two lifting rollers are symmetrically arranged with the receiving groove as the center, and the wheel edge of the two lifting rollers protrudes from the inner side of the receiving groove on the side that is close to each other. Both ends of the central wheel shaft of the two lifting rollers are integrally formed with a flat first positioning post. The first positioning post is slidably inserted into the first slot hole at the corresponding position on the rotor support seat, and the thickness of the first positioning post is adapted to the width of the first slot hole. The positioning block is slidably inserted into the second groove inside the rotor support seat. The top of the positioning block is an isosceles triangle structure. The top of the positioning block is directly opposite the center position between the two lifting rollers, and the two inclined sides of the top of the positioning block are respectively set towards the two lifting rollers. A second positioning post is integrally formed at the middle position on both sides of the positioning block and is slidably inserted into the second groove. A connecting seat, which is fixedly installed on the bottom of the rotor support seat on the side away from the lower rotor fixing assembly; A vibration detection sensor is mounted on the outside of the rotor support. The mounting frame has an upper half that is U-shaped. The mounting frame is located at the bottom of the base, and the top of the mounting frame extends through a slot to the top of the base and is fixedly connected to the bottom of the base. A lead screw nut is located at the bottom of the base and is fitted onto the outside of the positive and negative thread lead screw. The outer side of the lead screw nut is fixed to the inner side of the upper half of the mounting frame. The first lifting cylinder is located at the bottom of the base and is vertically installed on the lower half of the mounting frame. The telescopic end of the first lifting cylinder extends to the top of the base through a slot and is then fixedly connected to the connecting seat by bolts.

5. The high-efficiency motor rotor dynamic balancing fixture according to claim 4, characterized in that, The rotor support base is integrally formed with a positioning sleeve around the first slot on the side away from the lower rotor fixing assembly and at the edge of the two first slots. Each positioning sleeve has a third slot on its side wall along the length of the first slot. The first positioning pins of the two lifting rollers near the positioning sleeve extend to the inside of the positioning sleeve, and a threaded hole is opened on the first positioning pin at the position corresponding to the third slot. A locking bolt is passed through the inside of the third slot, and the end of the locking bolt is threaded into the threaded hole. The rotor support base is also provided with a quick-release bolt on the side away from the lower rotor fixing assembly. The quick-release bolt passes through the second slot on the corresponding side of the rotor support base, and the end of the quick-release bolt is screwed into the preset mounting hole at the end of the second positioning post on the corresponding side of the positioning block.

6. The high-efficiency motor rotor dynamic balancing fixture according to claim 4, characterized in that, The rotor correction mechanism includes: The second lifting cylinder is vertically mounted on the top of the connecting seat via a bracket; A guide plate is located on the side of the second lifting cylinder and is slidably connected to the outside of the second lifting cylinder along the extension and retraction direction of the second lifting cylinder. The side of the guide plate is fixedly connected to the extension and retraction end of the second lifting cylinder. Mounting plate, the mounting plate is fixedly installed on the top of the guide plate, the mounting plate is horizontally fixed with a bearing plate, and the top surface of the bearing plate is fixed with a guide rail arranged in the same direction as the slide rail; A drilling machine is horizontally slidably mounted on a guide rail on the top of a support plate, with the working end of the drilling machine facing the same direction as the guide rail. A laser positioning sensor for drilling positioning is installed on the outside of the drilling machine. A propulsion cylinder is installed at the bottom of the support plate along the length of the guide rail, and the telescopic end of the propulsion cylinder is fixedly connected to the drilling machine. The bottom of the support plate is also equipped with a laser displacement sensor for detecting the propulsion stroke of the propulsion cylinder.

7. The high-efficiency motor rotor dynamic balancing fixture according to claim 2, characterized in that, The lower rotor fixing assembly includes: The lower V-shaped clamp is located on the top of the base with its opening facing upwards. A first laser ranging sensor with its detection end facing upwards is installed in the middle of the lower V-shaped clamp. The first telescopic cylinder has two parts, which are respectively vertically fixed in two first mounting holes on the base. The telescopic ends of the two first telescopic cylinders are respectively fixedly installed at both ends of the lower V-shaped clamp.

8. The high-efficiency motor rotor dynamic balancing fixture according to claim 2, characterized in that, The swing arm assembly includes: The bow-shaped arm has its tail end hinged to a hinge seat on the base. A support frame is fixed to the front end of the bow-shaped arm. A guide slide rod is fixed at each of the four corners of the bottom of the support frame. Second assembly holes for installing the upper rotor fixing assembly are opened on both sides of the middle part of the support frame. A third assembly hole for installing the rotor drive assembly is also opened on one side of the middle part of the support frame. A tilting cylinder is located on the side of the bow arm away from the rotor dynamic balance detection mechanism, and the tail end of the tilting cylinder is hinged to the base. The telescopic end of the tilting cylinder is hinged to the middle section of the bow arm. The bow arm is driven to tilt around the hinge seat by the telescopic movement of the tilting cylinder. When the tilting cylinder extends to its maximum stroke, the support frame fixed at the front end of the bow-shaped arm is directly above the lower rotor fixing assembly and is arranged horizontally.

9. The high-efficiency motor rotor dynamic balancing fixture according to claim 8, characterized in that, The upper rotor fixing assembly includes: There are two upper V-shaped clamps, which are arranged horizontally side by side with their openings facing downwards. When the bow-shaped arm is flipped to the maximum stroke angle in the direction of the rotor dynamic balance detection mechanism, the two upper V-shaped clamps correspond to the lower V-shaped clamps, and the lower V-shaped clamp is located between the two upper V-shaped clamps. The two ends of the two upper V-shaped clamps are fixedly connected by a connecting beam. Both ends of the two upper V-shaped clamps are integrally formed with a sliding sleeve for sliding engagement with the guide slide rod. A second laser ranging sensor with the detection end facing downwards is installed in the middle of each of the two upper V-shaped clamps. The second telescopic cylinder, there are multiple second telescopic cylinders, and the fixed ends of the multiple second telescopic cylinders are respectively fixedly installed in the second assembly holes at corresponding positions on the support frame. Each second telescopic cylinder is set at a perpendicular angle to the support frame, and the telescopic end of the second telescopic cylinder is fixedly installed on the connecting beam between the two upper V-shaped clamps. A phase sensor is mounted on one side of one of the upper V-clamps, with the detection end of the phase sensor facing vertically downwards.

10. The high-efficiency motor rotor dynamic balancing fixture according to claim 9, characterized in that, The rotor drive assembly includes: The main support arm is located between two upper V-shaped clamps and at the top of the connecting beam. A gap is left between the main support arm and the connecting beam to allow the main support arm to move up and down. The two ends of the main support arm extend beyond the connecting beam and to the outside of the ends of the two upper V-shaped clamps. Two first grooved wheels are rotatably installed at the middle position of the front of the main support arm. The third telescopic cylinder has two parts, both of which are parallel to the second telescopic cylinder. The fixed ends of the two third telescopic cylinders are respectively fixed in the corresponding third assembly holes on the support frame. The telescopic end of the third telescopic cylinder is fixed to the back of the main support arm. The auxiliary support arm has two parts. The tail ends of the two auxiliary support arms are respectively hinged to the two ends of the front of the main support arm. A second grooved wheel is rotatably installed on the front end of each of the two auxiliary support arms and on the side away from the front of the main support arm. The two first grooved pulleys and the two second grooved pulleys are connected by a drive belt, and the portion of the drive belt located between the two second grooved pulleys is at the bottom of the connecting beam. A drive motor for driving the transmission belt is installed at the middle position of the back of the main support arm. The upper edges of both ends of the main support arm are integrally formed with a first hanging ring, and the upper edges of the tail ends of the two auxiliary support arms are integrally formed with a second hanging ring. A tension spring connects the first hanging ring and the second hanging ring on the corresponding side. The main support arm has a first positioning post integrally formed on the front side and near the upper edge at both ends, which is used to limit the maximum angle of the auxiliary support arm to rotate outward. The two auxiliary support arms have a second positioning post integrally formed on the side of the auxiliary support arm close to the main support arm and near the lower edge. The lower edges of both ends of the main support arm have a stop angle integrally formed. The stop angle and the second positioning post are used to limit the maximum angle of the auxiliary support arm to rotate inward.

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