Multi-specification applicable motor shaft grinding device for motor production

Abstract

The invention relates to the technical field of motor shaft grinding, in particular to a multi-specification applicable motor shaft grinding device for motor production, which comprises a worktable and a control cabinet, a clamping mechanism and a driving mechanism are arranged on the upper side of the worktable, and a fine grinding assembly and a coarse grinding assembly are arranged on the side surface of the driving mechanism; the clamping mechanism comprises a first linear module, a first tip, a first electric push rod and a supporting block are arranged on the upper side of the first linear module, and a matching shaft, a first motor and a second tip are arranged on the side face of the first tip. By arranging the clamping mechanism, the driving mechanism, the accurate grinding assembly and the rough grinding assembly, the full-process machining from rough grinding, accurate grinding to grooving and deburring on the shaft is completed on single equipment, automation, flexibility and high precision of machining of motor shafts of multiple specifications are achieved, the production efficiency and the product consistency are remarkably improved, synchronous control operation is centralized and intelligent, and the production efficiency is improved. And automatic continuous processing can be realized.

Description

Technical Field

[0001] This invention relates to the field of motor shaft grinding technology, and in particular to a motor shaft grinding device for the production of motors with multiple specifications. Background Technology

[0002] In the field of motor manufacturing, the motor shaft, as a key transmission component, directly affects the performance, lifespan, and operational stability of the motor due to its machining accuracy. With the development of industrial automation and product diversification, motor models are becoming increasingly numerous, and the corresponding motor shaft specifications (such as length, diameter, stepped shaft sections, keyways, and undercut grooves) are also becoming more diverse. Currently, traditional motor shaft grinding is mostly carried out using general-purpose cylindrical grinding machines in conjunction with manual operation or specialized automated equipment.

[0003] The former relies heavily on operator experience, is time-consuming and labor-intensive for model changeovers and adjustments, suffers from poor processing consistency, and is difficult to adapt to the flexible production needs of multiple specifications and small to medium batches. The latter, while highly efficient, is highly specialized, has high equipment costs, and faces the risk of modification or obsolescence once product specifications change, lacking both economy and flexibility. Especially when dealing with the need for step-by-step processing of the shaft outer diameter and the grooves on the shaft (such as keyways), two machines or two clamping operations are often required, which not only increases equipment investment and floor space but also easily introduces coaxiality errors due to the secondary clamping, affecting the quality of the final product. Therefore, there is an urgent need to develop a flexible grinding device that can ensure high precision and high efficiency while quickly adapting to the processing of motor shafts of different specifications, in order to meet the comprehensive requirements of modern motor manufacturing for production flexibility, economy, and quality reliability. We propose a multi-specification applicable motor shaft grinding device for motor production. Summary of the Invention

[0004] In order to overcome the technical problems existing in the prior art, the present invention provides a motor shaft grinding device applicable to the production of motors of multiple specifications.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: including a workbench and a control cabinet, wherein a clamping mechanism and a driving mechanism are respectively arranged on the upper side of the workbench, and a fine grinding component and a coarse grinding component are respectively arranged on the side of the driving mechanism. The clamping mechanism includes a first linear module. The upper side of the first linear module is provided with a first center, a first electric push rod and a support block. The side of the first center is provided with a mating shaft, a first motor and a second center. The side of the second center is provided with a power supply module, a second electric push rod and a constraint block. The interior of the constraint block is provided with a movable block, a ball, a first detector and a support cylinder. The drive mechanism includes a second linear module. The upper side of the second linear module is provided with a second mating frame, an electric slide table and a mating plate. The side of the mating plate is provided with a third electric push rod and a mounting plate. The fine grinding component and the rough grinding component are fixedly arranged on the side of the mounting plate. The fine grinding assembly includes a fixed plate, and a fourth electric push rod, a fine grinding roller, a second motor, and a second detector are arranged on the lower side of the fixed plate. The coarse grinding assembly includes two sets of connecting frames. The sides of the two sets of connecting frames are provided with a first roller, a second roller, and a third roller. The sides of the first roller, the second roller, and the third roller are provided with a grinding belt. The inner side of the grinding belt is provided with a fourth roller and a sixth electric actuator.

[0006] Furthermore, the first linear module is fixedly mounted on the upper side of the worktable, and a first mating frame is fixedly mounted on the side of the slide of the first linear module. A fixing frame is fixedly mounted on the upper side of the first mating frame, a first center is fixedly mounted on the side of the fixing frame, a first electric actuator is fixedly mounted on the side of the first mating frame, and a support block is fixedly mounted on the output end of the first electric actuator.

[0007] Furthermore, a mounting bracket is fixedly installed on the upper side of the workbench corresponding to the position of the first linear module. The mating shaft is rotatably mounted on the side of the mounting bracket. The first motor is fixedly mounted on the side of the mating shaft and is also fixedly mounted on the side of the mounting bracket via a bracket. The second center is fixedly mounted on the side of the mating shaft. The power supply module is fixedly sleeved on the side of the mating shaft. The second electric push rod is fixedly mounted on the side of the mating shaft. The constraint block is fixedly mounted on the output end of the second electric push rod and is movably sleeved on the side of the second center.

[0008] Furthermore, the inner side of the constraint block is provided with movable cavities at equal intervals, the movable block is movably installed inside the movable cavity, the ball bearing is rotatably installed on the side of the movable block, the side of the movable block is provided with a slot, the first detector is fixedly installed on the wall of the movable cavity, and the support cylinder is fixedly connected between the side of the first detector and the slotted wall.

[0009] Furthermore, the second linear module is fixedly mounted on the upper side of the worktable, the second mating frame is fixedly mounted on the side of the slide of the second linear module, the electric slide is fixedly mounted on the side of the second mating frame, the mating plate is fixedly mounted on the side of the slider of the electric slide, the third electric push rod is fixedly mounted on the side of the mating plate, and the mounting plate is fixedly mounted on the output end of the third electric push rod.

[0010] Furthermore, the fixing plate is fixedly installed on the side of the mounting plate, the fourth electric push rod is fixedly installed on the side of the fixing plate, the fine grinding roller is fixedly installed on the output end of the fourth electric push rod, the second motor is fixedly installed on the side of the fine grinding roller and the output end of the second motor is connected through to the side of the fine grinding roller grinding wheel, and the second detector is fixedly installed on the other side of the fine grinding roller.

[0011] Furthermore, the two sets of connecting frames are fixedly installed on the side of the mounting plate, and the two sets of second rollers are respectively located on both sides of the fixed plate. The first roller is rotatably located on the upper side of the two sets of connecting frames. A third motor is fixedly installed on the side of one set of connecting frames. A matching rod is fixedly installed on the output end of the third motor and passes through the two sets of connecting frames so that the first roller is fixedly sleeved on the side of the matching rod. A fifth electric push rod is fixedly installed on the side of the connecting frame and the output end of the fifth electric push rod is fixedly connected to the side of the second roller. A matching cavity is opened on the lower side of the connecting frame. A damping frame is slidably installed inside the matching cavity and is fixedly connected to the side of the third roller. A support spring is fixedly connected between the upper side of the damping frame and the wall of the matching cavity.

[0012] Furthermore, the fourth roller is mirror-mounted on both sides of the third roller and is fitted to the inner side of the grinding belt. The sixth electric actuator is symmetrically and vertically fixedly installed on the lower side of the connecting frame, and the output end of the sixth electric actuator is fixedly connected to the side of the fourth roller.

[0013] Compared with the prior art, the beneficial effects that this invention can achieve are: 1. This invention enables the completion of the entire process from rough grinding and fine grinding to grooving and deburring on the shaft on a single machine by setting up a clamping mechanism, a driving mechanism, a fine grinding component and a rough grinding component. It realizes the automation, flexibility and high precision of multi-specification motor shaft processing, significantly improves production efficiency and product consistency, and the synchronous control operation is centralized and intelligent, enabling automatic continuous processing.

[0014] 2. This invention, by setting up a clamping mechanism, uses a movable clamping mechanism composed of a first linear module and a first center, in conjunction with a second center and an innovative constraint block assembly, to achieve rapid centering and clamping of shafts of different lengths and diameters. The ball-bearing movable block and pressure detection design on the inner side of the constraint block allow it to serve as an auxiliary support to guide the passive rotation of the shaft for outer diameter grinding, and can also be further clamped to transform into a robust driving fixture. This fixture, in conjunction with a first motor, actively drives the shaft to rotate for precise positioning processing such as grooving. The dual-purpose clamping mechanism is easy to switch between, enhancing the adaptability and ease of operation of the equipment.

[0015] 3. This invention can complete the stepped grinding of the motor shaft by setting up a fine grinding component and a coarse grinding component. It integrates a coarse grinding component composed of a sanding belt and a fine grinding component composed of a precision grinding wheel. The sanding belt can first efficiently remove the excess material, and then the fine grinding wheel can ensure dimensional accuracy and surface finish. The synchronous grinding component can be driven to adjust its position to complete the automatic adaptation of the stepped grinding.

[0016] 4. By setting a fourth roller and a sixth electric actuator and their surrounding components, and by adjusting the tension and shape of the abrasive belt through the fifth and sixth electric actuators, the abrasive belt can be switched between a flat state and a sharp-corner state. Thus, the same set of abrasive belt mechanism can be used to grind the outer cylindrical surface and to deburr the grooves on the shaft efficiently. The process is completed in one clamping, avoiding secondary clamping errors and ensuring the coaxiality and positional accuracy between the processed surfaces.

[0017] 5. By setting up a pressure sensor and its surrounding components, the pressure sensor provides real-time feedback on the clamping status of the constraint block, ensuring precise control of the clamping force at different processing stages. Based on the closed-loop control of sensor feedback, the reliance on operator experience is reduced, making the processing process intelligent and standardized, and significantly improving the stability and traceability of finished product quality.

[0018] 6. By setting up a laser displacement sensor, the system can automatically identify changes in steps and the position of the groove by real-time detection of the outer contour and groove position of the shaft, and intelligently plan the grinding path and switch the processing mode accordingly.

[0019] 7. The core functional units of this invention, such as clamping, driving, and grinding, are all modularly designed and centrally controlled through a central control cabinet. For motor shafts of different specifications, key parameters (such as shaft length, diameter, and step size) can be called or input on the control interface to automatically adjust the position and process parameters of the relevant actuators, enabling rapid production changeover, shortening training and debugging time, and making equipment maintenance and component replacement more convenient, thus significantly reducing operating costs. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the clamping mechanism of the present invention; Figure 3 This is a partial structural schematic diagram of the clamping mechanism of the present invention; Figure 4 This is a schematic cross-sectional view of the peripheral structure of the mating shaft of the present invention; Figure 5 For the present invention Figure 4 A magnified structural diagram at point A; Figure 6 This is a partial structural schematic diagram of the driving mechanism of the present invention; Figure 7 This is a partial structural schematic diagram of the driving mechanism of the present invention; Figure 8 This is a schematic diagram of the structure of the precision grinding component of the present invention; Figure 9 This is a schematic diagram of the coarse grinding component of the present invention; Figure 10 This is a partial exploded view of the coarse grinding component of the present invention.

[0021] The components include: 1. Workbench; 11. Control cabinet; 2. Clamping mechanism; 21. First linear module; 22. First mating frame; 23. Fixed frame; 231. First center; 24. First electric actuator; 241. Support block; 25. Mounting frame; 251. Mating shaft; 26. First motor; 27. Second center; 28. Power supply module; 281. Second electric actuator; 29. ​​Constraint block; 291. Movable cavity; 292. Movable block; 293. Ball bearing; 294. Slot; 295. First detector; 296. Support cylinder; 3. Drive mechanism; 31. Second linear module; 32. 1. Second mating frame; 33. Electric slide table; 34. Mating plate; 35. Third electric push rod; 36. Mounting plate; 4. Fine grinding assembly; 41. Fixing plate; 42. Fourth electric push rod; 43. Fine grinding roller; 44. Second motor; 45. Second detector; 5. Coarse grinding assembly; 51. Connecting frame; 52. First roller; 53. Third motor; 531. Mating rod; 54. Second roller; 541. Fifth electric push rod; 55. Third roller; 551. Mating cavity; 552. Damping frame; 553. Support spring; 56. Grinding belt; 57. Fourth roller; 58. Sixth electric push rod. Detailed Implementation

[0022] To make the technical means, creative features, and achieved objectives and effects of this invention easier to understand, the invention is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this invention. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified.

[0023] Example: Figure 1 As shown, a multi-specification applicable motor shaft grinding device includes a workbench 1 and a control cabinet 11. The control cabinet 11 is located on the bottom side of the workbench 1 and integrates power supply, control and detection modules. A clamping mechanism 2 and a drive mechanism 3 are respectively arranged on the upper side of the workbench 1. The clamping mechanism 2 can constrain and stabilize and clamp and fix motor shafts of different specifications, and the drive mechanism 3 can be adapted to perform grinding operations on motor shafts of different specifications.

[0024] like Figures 2 to 5As shown, the clamping mechanism 2 includes a first linear module 21, which is fixedly mounted on the upper side of the worktable 1. A first mating frame 22 is fixedly mounted on the side of the slide of the first linear module 21. A fixing frame 23 is fixedly mounted on the upper side of the first mating frame 22. A first center point 231 is fixedly mounted on the side of the fixing frame 23. A first electric push rod 24 is vertically fixedly mounted on the side of the first mating frame 22 below the first center point 231. A support block 241, which is a "C"-shaped block, is fixedly mounted at the output end of the first electric push rod 24. Specifically, the first linear module 21 drives the first mating frame 22 to move axially, so that the first center point 231 abuts against the center of one end of the motor shaft. At the same time, the first electric push rod 24 raises and lowers the support block 241, so that it supports the motor shaft from below, achieving initial positioning and support. A mounting bracket 25 is fixedly installed on the upper side of the workbench 1, corresponding to the position of the first linear module 21. The mounting bracket 25 is a rectangular frame. A mating shaft 251, which is a "T"-shaped round shaft, is rotatably mounted through the side of the mounting bracket 25. A first motor 26 is fixedly mounted on the side of the mating shaft 251 and is fixedly mounted on the side of the mounting bracket 25 via a bracket. A second center 27 is fixedly mounted on the side of the mating shaft 251 away from the first motor 26. A power supply module 28, which is a ring-shaped rechargeable battery, is fixedly sleeved on the side of the mating shaft 251. Second electric push rods 281 are fixedly mounted in a circumferential array at equal intervals on the side of the mating shaft 251 and are connected to the power supply module 281 via a circuit. Electrical module 28 is electrically connected. A constraint block 29 is fixedly installed at the output end of the second electric push rod 281 and is movably sleeved on the side of the second tip 27. The constraint block 29 is a wear-resistant elastic rubber ring block with a trapezoidal axial cross section. Movable cavities 291 are equidistantly arranged in a circular array on the inner circumference of the constraint block 29. The movable cavities 291 are convex-shaped cavities. Movable blocks 292 are movably installed inside the movable cavities 291, and part of the movable blocks 292 extends out of the movable cavities 291. The movable blocks 292 are convex-shaped blocks. Ball bearings 293 are equidistantly rotatably installed on the side of the movable blocks 292. Grooves 294 are symmetrically opened on the side of the movable blocks 292 away from the second tip 27. The grooves 294 are cylindrical grooves. A first detector 295 is symmetrically and fixedly installed on the wall of cavity 291 corresponding to the slot 294. The first detector 295 is a pressure sensor (any sensor model capable of detecting minute pressure is acceptable). A support cylinder 296 is fixedly connected between the side of the first detector 295 and the wall of slot 294. The support cylinder 296 is a corrugated cylinder made of elastic material. Specifically, the second electric push rod 281 is directly powered by the power supply module 28. The power supply module 28 and the second electric push rod 281 can rotate as a whole with the mating shaft 251. The second electric push rod 281 pushes and pulls the constraint block 29 to move its position. Under normal conditions, the second tip 27 cooperates with the first tip 231 to hold and constrain the motor shaft, and the second electric push rod 281 pushes... As the constraint block 29 moves toward the motor shaft, the ball bearings 293 on the side of the movable block 292 press against the side of the motor shaft, causing the support cylinder 296 to deform slightly. The first detector 295 monitors the pressure on the support cylinder 296 in real time, ensuring that the inner side of the constraint block 29 does not contact the second tip 27. The ball bearings 293 can maintain the constraint and stability of the second tip 27 by rolling. The second electric push rod 281 can then push the constraint block 29, causing the movable block 292 to slide into the movable cavity 291 under pressure. At this time, the inner side of the constraint block 29 is in contact with the side of the motor shaft, thus the constraint block 29 can press and fix the second tip 27. The pressure signal fed back by the first detector 295 is sent to the control module, which can then confirm that the motor shaft is stably fixed.

[0025] like Figures 6 to 10As shown, the drive mechanism 3 includes a second linear module 31, which is fixedly installed on the upper side of the worktable 1 corresponding to the position of the first linear module 21. A second mating frame 32 is vertically fixedly installed on the side of the slide of the second linear module 31. An electric slide 33 is symmetrically fixedly installed on the side of the second mating frame 32 near the first linear module 21. A mating plate 34 is fixedly installed on the side of the slider of the electric slide 33. The mating plate 34 is a rectangular frame. A third electric push rod 35 is symmetrically fixedly installed on the side of the mating plate 34 near the second mating frame 32, and the output end of the third electric push rod 35 extends through the mating plate 34. A mounting plate 36 is fixedly installed on the output end of the third electric push rod 35. The mounting plate 36 is a rectangular plate. A fine grinding component 4 and a coarse grinding component 5 are fixedly installed on the side of the mounting plate 36. The fine grinding component 4 can perform fine grinding and real-time detection on the motor shaft. The coarse grinding component 5 can perform coarse grinding and switching grinding and grooving 294 on the motor shaft. The fine grinding assembly 4 includes a fixed plate 41, which is fixedly installed at the center of the side of the mounting plate 36. The fixed plate 41 is a rectangular block. A fourth electric actuator 42 is vertically fixedly installed on the side of the fixed plate 41 near the worktable 1. A fine grinding roller 43 is fixedly installed at the output end of the fourth electric actuator 42. The fine grinding roller 43 consists of a fine abrasive roller and a support frame. A second motor 44 is fixedly installed on the side of the fine grinding roller 43, and the output end of the second motor 44 is connected through to the side of the abrasive wheel of the fine grinding roller 43. The second motor 44 can drive the fine grinding roller 43 to rotate for grinding. By pushing and pulling the fine grinding roller 43 with the fourth electric actuator 42, a stepped grinding operation can be performed on the motor shaft. A second detector 45 is fixedly installed on the other side of the grinding roller 43. The second detector 45 is a laser distance sensor (any sensor model capable of detecting minute distances is acceptable). In use, the fourth electric push rod 42 controls the movement of the fine grinding roller 43 to perform grinding operations on the motor shaft. Simultaneously, the second detector 45 can detect the distance on the side of the motor shaft in real time, effectively determining the step position of the motor shaft. In addition, the position of the groove 294 on the side of the motor shaft can be determined by the distance detected by the second detector 45 (when detecting the groove 294 on the motor shaft, the distance is much greater than the side of the motor shaft, so the position of the groove 294 can be known). When the position of the groove 294 is detected in real time, the groove 294 can be ground and deburred by the coarse grinding component 5. The coarse grinding assembly 5 includes two sets of connecting frames 51, which are symmetrically fixedly installed on the side of the mounting plate 36. Two sets of second rollers 54 are respectively located on both sides of the fixed plate 41. The connecting frames 51 are rectangular frames, and a first roller 52 is rotatably mounted through the upper side of the two sets of connecting frames 51. A third motor 53 is fixedly installed on the side of one set of connecting frames 51 corresponding to the position of the first roller 52. A mating rod 531 is fixedly installed at the output end of the third motor 53, and the mating rod 531 passes through the two sets of connecting frames 51, so that the first roller 52 is fixedly sleeved on the side of the mating rod 531. The third motor 53 drives the mating rod 531 to rotate, which synchronously drives the first roller 52 to advance. The system rotates. A second roller 54 is provided on the side of the connecting frame 51. The second roller 54 consists of a "C"-shaped frame and a circular roller. A fifth electric actuator 541 is fixedly installed on the side of the connecting frame 51 corresponding to the position of the second roller 54, and the output end of the fifth electric actuator 541 is fixedly connected to the side of the second roller 54. A third roller 55 is provided on the lower side of the connecting frame 51. The third roller 55 consists of a "C"-shaped frame and a circular roller. A mating cavity 551 is opened on the lower side of the connecting frame 51 corresponding to the position of the third roller 55. The mating cavity 551 is a rectangular cavity. A damping frame 552 is slidably installed inside the mating cavity 551 and is fixedly connected to the side of the third roller 55. In the position of the damping frame 552, it is a "T"-shaped frame. A support spring 553 is fixedly connected between the upper side of the damping frame 552 and the wall of the mating cavity 551. A grinding belt 56 is movably sleeved on the side of the first roller 52, the second roller 54, and the third roller 55. The grinding belt 56 is an annular sanding belt with its outer surface covered with sandpaper material. Specifically, when the third motor 53 drives the mating rod 531 to rotate, the first roller 52 can drive the grinding belt 56 to rotate cyclically on the side of the first roller 52, the second roller 54, and the third roller 55. At this time, the grinding belt 56 can grind the motor shaft. The second roller 54 is pushed by the fifth electric push rod 541, and synchronously... The third roller 55 can squeeze the damping frame 552 to slide inside the mating cavity 551. The support spring 553 cooperates in squeezing and deforming, so that the third roller 55 can move closer to the connecting frame 51. Conversely, after the fifth electric push rod 541 pulls the second roller 54, the damping frame 552 is reset under the elastic support of the support spring 553, so that the damping frame 552 pushes the third roller 55 away from the connecting frame 51. In this way, the position of the grinding belt 56 can be adjusted, so as to perform stepped grinding of the motor shaft. The grinding belt 56 first performs a stepped coarse grinding operation on the motor shaft, and then the fine grinding roller 43 performs a stepped fine grinding operation on the motor shaft. Simultaneously, the second detector 45 detects the distance of the motor shaft to assist in the coordination. The third roller 55 is mirror-imagely positioned with a fourth roller 57 on both sides, and the fourth roller 57 is fitted against the inner side of the grinding belt 56. The fourth roller 57 consists of a cylindrical roller shaft and a bracket. A sixth electric actuator 58 is symmetrically and vertically fixedly installed on the lower side of the connecting frame 51, and the output end of the sixth electric actuator 58 is fixedly connected to the side of the fourth roller 57. Specifically, the sixth electric actuator 58 can push and pull the fourth roller 57 to move its position. When the third roller 55 moves, the sixth electric actuator 58 cooperates to move the fourth roller 57, so that the fourth roller 57... The third roller 55 supports the grinding belt 56, ensuring stable grinding operation. When grinding the groove 294 is required, the sixth electric actuator 58 pushes the fourth roller 57, which continuously pushes the grinding belt 56. The fifth electric actuator 541 pulls the second roller 54, providing slight support to the front end of the grinding belt 56. This causes the grinding belt 56 at the end of the fourth roller 57 to be at a small angle, allowing the grinding belt 56 to rotate cyclically and perform grinding and deburring operations on the groove 294 of the motor shaft.

[0026] Working principle: When polishing the outer side, the first step is to stabilize the material clamping. The motor shaft is placed between the second center 27 and the first center 231 by manual or mechanical gripper. The first linear module 21 drives the first mating frame 22 to move, causing the first center 231 to move closer to the motor shaft. The second center 27 and the first center 231 respectively hold the two ends of the motor shaft. Then, the first electric push rod 24 pushes the support block 241 to fit against the side of the motor shaft to provide stable support for one end. Simultaneously, the second electric push rod 281 pushes the constraint block 29 closer to the side of the motor shaft, causing the ball 293 to roll and fit against the side of the motor shaft. At this time, the inner side of the constraint block 29 is not in contact with the motor shaft. The contact state between the constraint block 29 and the motor shaft is determined by the pressure detection of the first detector 295. The second step is stepped grinding. The second linear module 31 drives the second mating frame 32 to move laterally, and the electric slide table 33 drives the mating plate 34 to move the third electric push rod 35 vertically. The third electric push rod 35 pushes the mounting plate 36 to move, so that the mounting plate 36 and the fine grinding component 4 and coarse grinding component 5 on its side can move in three directions. In addition, the second detector 45 detects the distance to the side of the motor shaft, the fourth electric push rod 42 controls the movement of the fine grinding roller 43, and the second motor 44 drives the fine grinding roller 43 to rotate for grinding. At the same time, the fifth electric push rod 541 pushes or pulls the second roller 54 to move its position, so that the third roller 55 is constrained and guided by the damping frame 552. The third roller 55 moves its position in coordination, and the third motor 53 drives the cooperating rod 531 to drive the first roller 52 to rotate, so that the grinding belt 56 rotates for grinding. In this way, the motor shaft is first ground by the grinding belt 56 and then finely ground by the fine grinding roller 43, which can complete the step-by-step grinding operation. When the third roller 55 is adjusted, the sixth electric actuator 58 can push and pull the fourth roller 57 to move in coordination, so that the fourth roller 57 is in contact with the inner side of the grinding belt 56, which helps the third roller 55 to provide stable support for the grinding belt 56 and ensure the grinding effect. During the rough grinding and fine grinding of the outer circle, the motor shaft is mainly driven by the friction of the grinding belt 56 and the fine grinding roller 43, which generates passive rotation to reduce energy consumption. During the final grinding, the first motor 26 actively drives the motor shaft to rotate through the second center 27 to ensure precise control of position and speed. When grinding and slotting 294, the first step is to fix the motor shaft. The second electric push rod 281 continues to push the constraint block 29 so that the inner side of the constraint block 29 fits and is fixed to the side of the motor shaft. The movable block 292 then slides completely into the movable cavity 291. The pressure detected by the first detector 295 can determine the state at this time. Then, the first motor 26 drives the mating shaft 251 to rotate the second tip 27. The motor shaft is synchronously constrained and rotates accordingly. The distance is detected by the second detector 45. When the distance suddenly increases, the position of slotting 294 is determined. The first motor 26 stops driving and keeps the motor shaft position stationary. The second step is to grind the groove 294. At this time, the sixth electric push rod 58 pushes the fourth roller 57 to move continuously, so that the fourth roller 57 supports the grinding belt 56 separately, so that the grinding belt 56 forms a small angle tilt. The fifth electric push rod 541 works in conjunction to pull the second roller 54 to grind the grinding belt 56 normally. The grinding belt 56 rotates itself and is moved laterally by the second linear module 31 to perform the grinding operation on the groove 294. At the same time, the second detector 45 detects the position of the groove 294 in real time. The third step is the final polishing of the finished product. After the groove 294 is polished, it is restored to the outer polishing state. Unlike before, the constraint block 29 squeezes and fixes the motor shaft. The first motor 26 actively drives the mating shaft 251 to rotate the motor shaft. The fine grinding roller 43 and the polishing belt 56 perform the final single polishing of the motor shaft, and the finished product is then launched.

[0027] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A motor shaft grinding device for multi-specification applicable motor production, comprising a workbench (1) and a control cabinet (11), wherein a clamping mechanism (2) and a driving mechanism (3) are respectively provided on the upper side of the workbench (1), and a fine grinding component (4) and a coarse grinding component (5) are respectively provided on the side of the driving mechanism (3). Its features are: The clamping mechanism (2) includes a first linear module (21). The upper side of the first linear module (21) is provided with a first center (231), a first electric push rod (24) and a support block (241). The side of the first center (231) is provided with a mating shaft (251), a first motor (26) and a second center (27). The side of the second center (27) is provided with a power supply module (28), a second electric push rod (281) and a constraint block (29). The interior of the constraint block (29) is provided with a movable block (292), a ball (293), a first detector (295) and a support cylinder (296). The drive mechanism (3) includes a second linear module (31), a second mating frame (32), an electric slide table (33) and a mating plate (34) are provided on the upper side of the second linear module (31), a third electric push rod (35) and a mounting plate (36) are provided on the side of the mating plate (34), and the fine grinding assembly (4) and the rough grinding assembly (5) are fixedly arranged on the side of the mounting plate (36); The fine grinding assembly (4) includes a fixed plate (41), and a fourth electric push rod (42), a fine grinding roller (43), a second motor (44), and a second detector (45) are provided on the lower side of the fixed plate (41). The coarse grinding assembly (5) includes two sets of connecting frames (51). The sides of the two sets of connecting frames (51) are provided with a first roller (52), a second roller (54) and a third roller (55). The sides of the first roller (52), the second roller (54) and the third roller (55) are provided with a grinding belt (56). The inner side of the grinding belt (56) is provided with a fourth roller (57) and a sixth electric push rod (58).

2. The motor shaft grinding device for multi-specification applicable motor production according to claim 1, characterized in that: The first linear module (21) is fixedly installed on the upper side of the workbench (1). The first mating frame (22) is fixedly installed on the side of the slide of the first linear module (21). The fixing frame (23) is fixedly installed on the upper side of the first mating frame (22). The first tip (231) is fixedly installed on the side of the fixing frame (23). The first electric push rod (24) is fixedly installed on the side of the first mating frame (22). The support block (241) is fixedly installed on the output end of the first electric push rod (24).

3. The motor shaft grinding device for multi-specification applicable motor production according to claim 2, characterized in that: A mounting bracket (25) is fixedly installed on the upper side of the workbench (1) corresponding to the position of the first linear module (21). The mating shaft (251) is rotatably installed on the side of the mounting bracket (25). The first motor (26) is fixedly installed on the side of the mating shaft (251) and the first motor (26) is fixedly set on the side of the mounting bracket (25) by a bracket. The second tip (27) is fixedly installed on the side of the mating shaft (251). The power supply module (28) is fixedly sleeved on the side of the mating shaft (251). The second electric push rod (281) is fixedly installed on the side of the mating shaft (251). The constraint block (29) is fixedly installed on the output end of the second electric push rod (281) and is movably sleeved on the side of the second tip (27).

4. The motor shaft grinding device for multi-specification applicable motor production according to claim 3, characterized in that: The inner side of the constraint block (29) is provided with movable cavities (291) at equal intervals. The movable block (292) is movably installed inside the movable cavity (291). The ball (293) is rotatably installed on the side of the movable block (292). The side of the movable block (292) is provided with a slot (294). The first detector (295) is fixedly installed on the wall of the movable cavity (291). The support cylinder (296) is fixedly connected between the side of the first detector (295) and the wall of the slot (294).

5. The motor shaft grinding device for multi-specification applicable motor production according to claim 4, characterized in that: The second linear module (31) is fixedly installed on the upper side of the workbench (1), the second mating frame (32) is fixedly installed on the side of the slide of the second linear module (31), the electric slide (33) is fixedly installed on the side of the second mating frame (32), the mating plate (34) is fixedly installed on the side of the slider of the electric slide (33), the third electric push rod (35) is fixedly installed on the side of the mating plate (34), and the mounting plate (36) is fixedly installed on the output end of the third electric push rod (35).

6. The motor shaft grinding device for multi-specification applicable motor production according to claim 5, characterized in that: The fixing plate (41) is fixedly installed on the side of the mounting plate (36), the fourth electric push rod (42) is fixedly installed on the side of the fixing plate (41), the fine grinding roller (43) is fixedly installed on the output end of the fourth electric push rod (42), the second motor (44) is fixedly installed on the side of the fine grinding roller (43) and the output end of the second motor (44) is connected through to the side of the grinding wheel of the fine grinding roller (43), and the second detector (45) is fixedly installed on the other side of the fine grinding roller (43).

7. The motor shaft grinding device for multi-specification applicable motor production according to claim 6, characterized in that: Two sets of connecting frames (51) are fixedly installed on the side of the mounting plate (36). Two sets of second rollers (54) are respectively set on both sides of the fixed plate (41). The first roller (52) is rotatably set on the upper side of the two sets of connecting frames (51). A third motor (53) is fixedly installed on the side of one set of connecting frames (51). A matching rod (531) is fixedly installed on the output end of the third motor (53), and the matching rod (531) passes through the two sets of connecting frames (51) so that the first roller (52) is fixedly sleeved on the matching rod (531). 31) On the side, a fifth electric push rod (541) is fixedly installed on the side of the connecting frame (51), and the output end of the fifth electric push rod (541) is fixedly connected to the side of the second roller (54). A mating cavity (551) is opened on the lower side of the connecting frame (51). A damping frame (552) is slidably installed inside the mating cavity (551), and the damping frame (552) is fixedly connected to the side of the third roller (55). A support spring (553) is fixedly connected between the upper side of the damping frame (552) and the wall of the mating cavity (551).

8. The motor shaft grinding device for multi-specification applicable motor production according to claim 7, characterized in that: The fourth roller (57) is mirrored on both sides of the third roller (55) and is fitted to the inner side of the grinding belt (56). The sixth electric push rod (58) is symmetrically and vertically fixed on the lower side of the connecting frame (51) and the output end of the sixth electric push rod (58) is fixedly connected to the side of the fourth roller (57).

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