Steering shaft polishing device

By installing auxiliary clamping components and anti-splash components on the steering shaft grinding device, the problems of steering shaft shaking and debris splashing during the grinding process are solved, achieving a more efficient and safer grinding effect.

CN224544016UActive Publication Date: 2026-07-24AEST INTELLIGENT TECH (HUIZHOU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
AEST INTELLIGENT TECH (HUIZHOU) CO LTD
Filing Date
2025-07-03
Publication Date
2026-07-24

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Abstract

The utility model discloses a kind of steering shaft polishing devices, including base, fixed base, rotating mechanism, auxiliary clamping assembly, polishing assembly, moving assembly and anti-splashing component, the top one end of base is fixedly installed with fixed base, the top of fixed base is installed with rotating mechanism, rotating mechanism includes motor, rotating seat, connecting seat and clamping seat, the top one end of fixed base is installed to motor, the output end of motor is fixedly connected to the rotating member inside rotating seat, one end of rotating seat is fixed with connecting seat, one end of connecting seat is fixedly installed with the clamping seat for steering shaft clamping fixed.The utility model is evenly distributed with four groups of auxiliary clamping assembly of synchronous work on clamping seat, to facilitate the auxiliary clamping fixed effect to steering shaft, to improve the stability when steering shaft polishing, at the same time, through the cooperation of first clamping column and first column groove seat, in turn facilitate arc clamping plate play the role of disassembly replacement and installation.
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Description

Technical Field

[0001] This utility model relates to the field of lawnmower technology, specifically to a steering shaft grinding device. Background Technology

[0002] A lawnmower is a motorized tool used to trim lawns or vegetation. It typically consists of an engine, a blade, a walking mechanism, and a control system. Its steering shaft is the core transmission component that connects the operating handle or steering wheel to the wheel / blade steering mechanism. It transmits steering torque mechanically or hydraulically, enabling flexible steering control of the lawnmower.

[0003] However, during the manufacturing process, the surface of the steering shaft needs to be polished to improve its production quality.

[0004] Existing grinding equipment often fails to properly fix the steering shaft during grinding, leading to shaking and reduced efficiency and quality. Furthermore, grinding debris can easily fly out of the grinding equipment area, potentially causing injury to operators. Utility Model Content

[0005] The purpose of this utility model is to provide a steering shaft grinding device. This utility model provides four sets of synchronously working auxiliary clamping components evenly distributed on the clamping seat, which facilitates the auxiliary clamping and fixing of the steering shaft, thereby improving the stability of the steering shaft during grinding. At the same time, the cooperation between the first clamping post and the first post groove seat facilitates the disassembly, replacement and installation of the arc-shaped clamping plate, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A steering shaft grinding device includes a base, a fixed seat, a rotating mechanism, an auxiliary clamping assembly, a grinding assembly, a moving assembly, and a splash-proof assembly.

[0008] A fixed seat is fixedly installed at one top end of the base, and a rotating mechanism is installed on the top of the fixed seat. The rotating mechanism includes a motor, a rotating seat, a connecting seat, and a clamping seat. The motor is installed at one top end of the fixed seat, and the output end of the motor is fixedly connected to a rotating component inside the rotating seat. A connecting seat is fixed at one end of the rotating seat, and a clamping seat for clamping and fixing the steering shaft is fixedly installed at one end of the connecting seat.

[0009] Among them, four sets of auxiliary clamping components for auxiliary clamping and fixing of the steering shaft are evenly distributed on the outside of the clamping seat;

[0010] A grinding component for grinding the surface of the steering shaft is provided above the center of the top of the base;

[0011] The back end of the top of the base is equipped with a moving component for the grinding component to move back and forth;

[0012] The base has a splash-proof component at the top center for blocking debris.

[0013] Preferably, a support base is fixed to the other end of the top of the fixed base, and a rotating base is fixed inside the support base.

[0014] Preferably, the top of the motor is provided with a fixing ring, and the bottom two ends of the fixing ring are fixed to the fixing base by bolts.

[0015] Preferably, the auxiliary clamping assembly includes a miniature clamping cylinder, an L-shaped support rod, a first locking pin, a first column groove seat, and an arc-shaped clamping plate. The miniature clamping cylinder is fixedly installed on the outside of the clamping seat, and the output end of the miniature clamping cylinder is fixedly connected to the L-shaped support rod. The end of the L-shaped support rod near the steering shaft is fixed with the first locking pin, which is engaged inside the first column groove seat. The first column groove seat is fixedly installed on one side of the arc-shaped clamping plate.

[0016] Preferably, the moving component includes a first electric telescopic rod, a moving groove, a moving block, and a mounting base. The first electric telescopic rod is fixedly installed on the back side of one side of the base. A moving groove is provided on the back top of the base. The output end of the first electric telescopic rod, which passes through the moving groove, is fixedly connected to the moving block. The moving block is slidably connected to the moving groove. The top of the moving block is fixedly connected to the mounting base.

[0017] Preferably, the top of the mounting base is provided with six sets of connecting slots, the connecting slots are fitted with connecting columns, and the top of the connecting columns is fixedly installed with a frame plate.

[0018] Preferably, the polishing assembly includes a second electric telescopic rod, a second locking post, a second column slot seat, an arc-shaped pressure plate, and sandpaper. The second electric telescopic rod is fixedly installed on the top of the frame plate, and four sets are provided. The output end of the second electric telescopic rod penetrating the frame plate is fixedly connected to the second locking post. The second locking post is engaged inside the second column slot seat. An arc-shaped pressure plate is fixedly installed at the bottom of the second column slot seat. Sandpaper is bonded to the bottom of the arc-shaped pressure plate with high-temperature resistant adhesive.

[0019] Preferably, the anti-splash assembly includes a first shield, a chip collection groove, and a second shield. The first shield is fixedly installed on the top of the base and located at the inner end of the mounting base. A chip collection groove is provided at the middle of the top of the base, and a second shield is provided at one end of the top opening of the chip collection groove.

[0020] Preferably, a number of mounting blocks are fixedly installed at the bottom of the second shield, and the mounting blocks are snapped into corresponding mounting slots on the top of the base, with the mounting slots and mounting blocks being compatible.

[0021] Preferably, the chip collection groove is located below the grinding assembly.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] This utility model has four sets of synchronously operating auxiliary clamping components evenly distributed on the clamping seat, which facilitates the auxiliary clamping and fixing of the steering shaft, thereby improving the stability of the steering shaft during grinding. At the same time, the cooperation between the first clamping post and the first post groove seat makes it easy to disassemble, replace and install the arc-shaped clamping plate.

[0024] This utility model uses a combination of components such as a first baffle, a chip collection groove, a second baffle, a mounting block, and a mounting groove to effectively block the waste chips generated during the grinding of the steering shaft, preventing them from splashing out of the grinding device area. At the same time, the chip collection groove allows the waste chips to fall directly into it for collection, facilitating subsequent cleaning. Furthermore, it also facilitates the disassembly and installation of the second baffle. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the present invention with the second shielding plate removed;

[0027] Figure 3 for Figure 1 Schematic diagram of the explosion separation structure;

[0028] Figure 4 for Figure 3 Rear view structural diagram;

[0029] Figure 5 This is a top view of the base structure of this utility model;

[0030] Figure 6 This is a schematic diagram of the mounting base structure of this utility model.

[0031] In the diagram: 1. Base; 2. Fixed seat; 3. Motor; 301. Rotating seat; 302. Connecting seat; 303. Clamping seat; 4. Fixed ring; 5. Support seat; 6. Miniature clamping cylinder; 601. L-shaped support rod; 602. First locking post; 603. First column slot seat; 604. Arc-shaped clamping plate; 7. First electric telescopic rod; 701. Moving slot; 702. Moving block; 703. Mounting seat; 8. Connecting slot; 801. Connecting column; 9. Frame plate; 10. Second electric telescopic rod; 11. Second locking post; 12. Second column slot seat; 13. Arc-shaped pressure plate; 14. Sandpaper; 15. First baffle plate; 16. Chip collection trough; 17. Second baffle plate; 18. Mounting block; 1801. Mounting slot. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Please see Figure 1-6 This utility model provides a technical solution:

[0034] A steering shaft grinding device includes a base 1, a fixed seat 2, a rotating mechanism, an auxiliary clamping assembly, a grinding assembly, a moving assembly, and a splash-proof assembly.

[0035] A fixed base 2 is fixedly installed at one top end of the base 1. A rotating mechanism is installed on the top of the fixed base 2. The rotating mechanism includes a motor 3, a rotating seat 301, a connecting seat 302, and a clamping seat 303. The motor 3 is installed at one top end of the fixed base 2. The output end of the motor 3 is fixedly connected to a rotating component inside the rotating seat 301. The connecting seat 302 is fixed at one end of the rotating seat 301. A clamping seat 303 for clamping and fixing the steering shaft is fixedly installed at one end of the connecting seat 302. A support seat 5 is fixed at the other top end of the fixed base 2, and the rotating seat 301 is fixed inside the support seat 5. A fixing ring 4 is provided on the top of the motor 3, and the bottom two ends of the fixing ring 4 are fixed to the fixed base 2 by bolts.

[0036] This utility model starts the motor 3, which drives the rotating component built into the rotating seat 301 to rotate, so that the rotating component drives the connecting seat 302 and the clamping seat 303 to rotate at the same speed, thereby facilitating the rotation of the steering shaft.

[0037] Furthermore, such as Figure 1-3 As shown,

[0038] A grinding assembly for grinding the surface of the steering shaft is provided above the top center of the base 1. The grinding assembly includes a second electric telescopic rod 10, a second locking post 11, a second column slot seat 12, an arc-shaped pressure plate 13, and sandpaper 14. The second electric telescopic rod 10 is fixedly installed on the top of the frame plate 9, and four sets are provided. The output end of the second electric telescopic rod 10 passing through the frame plate 9 is fixedly connected to the second locking post 11. The second locking post 11 is locked into the inside of the second column slot seat 12. The bottom of the second column slot seat 12 is fixedly installed with the arc-shaped pressure plate 13. The bottom of the arc-shaped pressure plate 13 is bonded with sandpaper 14 by high-temperature resistant adhesive.

[0039] This utility model activates the second electric telescopic rod 10, causing its output end to drive the arc-shaped pressure plate 13 downward, so that the arc-shaped pressure plate 13 is close to the steering shaft, thereby facilitating the sandpaper 14 adhered to the bottom of the arc-shaped pressure plate 13 to the surface of the steering shaft. At the same time, the rotating mechanism drives the steering shaft to rotate, thereby enabling the steering shaft to achieve uniform sanding.

[0040] Furthermore, by taking the arc-shaped pressure plate 13 with your hand and moving it downwards, the second column slot seat 12 set on it can be disengaged from the second locking post 11, thereby facilitating the replacement and cleaning of the sandpaper 14 on the bottom of the arc-shaped pressure plate 13.

[0041] In summary, by using the rotating mechanism in conjunction with the grinding components, it is easy to achieve uniform grinding of the steering shaft, thereby improving grinding efficiency and quality.

[0042] In a further preferred embodiment, such as Figure 1-3 As shown,

[0043] The clamping seat 303 has four sets of auxiliary clamping components evenly distributed on its exterior for auxiliary clamping and fixing of the steering shaft. The auxiliary clamping components include a miniature clamping cylinder 6, an L-shaped support rod 601, a first locking pin 602, a first column groove seat 603, and an arc-shaped clamping plate 604. The miniature clamping cylinder 6 is fixedly installed on the exterior of the clamping seat 303, and the output end of the miniature clamping cylinder 6 is fixedly connected to the L-shaped support rod 601. The first locking pin 602 is fixed at the end of the L-shaped support rod 601 near the steering shaft. The first locking pin 602 is engaged with the interior of the first column groove seat 603. The first column groove seat 603 is fixedly installed on one side of the arc-shaped clamping plate 604.

[0044] This utility model has four sets of synchronously operating auxiliary clamping components evenly distributed on the clamping seat 303, which facilitates the auxiliary clamping and fixing of the steering shaft, thereby improving the stability of the steering shaft during grinding. At the same time, the cooperation between the first locking pin 602 and the first pin groove seat 603 facilitates the disassembly, replacement and installation of the arc-shaped clamping plate 604.

[0045] Furthermore, firstly, the steering shaft is clamped into the clamping seat 303. Then, by activating the micro clamping cylinder 6, its output end drives the L-shaped support rod 601 to extend and retract, so as to move the arc-shaped clamping plate 604 set on it closer to the steering shaft, thereby facilitating the auxiliary clamping of the steering shaft and improving the stability of the steering shaft during grinding.

[0046] Preferred, such as Figure 4-6 As shown,

[0047] The back end of the top of the base 1 is provided with a moving component for the grinding component to move back and forth; the moving component includes a first electric telescopic rod 7, a moving groove 701, a moving block 702 and a mounting base 703. The first electric telescopic rod 7 is fixedly installed on one side of the back end of the base 1. The back end of the top of the base 1 is provided with a moving groove 701, and the output end of the first electric telescopic rod 7 that passes through the moving groove 701 is fixedly connected to the moving block 702. The moving block 702 is slidably connected to the moving groove 701, and the top of the moving block 702 is fixedly connected to the mounting base 703.

[0048] The top of the mounting base 703 is evenly provided with six sets of connecting slots 8, and connecting posts 801 are snapped into the inside of the connecting slots 8. A bracket plate 9 is fixedly installed on the top of the connecting posts 801.

[0049] This utility model activates the first electric telescopic rod 7, causing its output end to drive the moving block 702 to move left and right within the moving groove 701. This movement causes the mounting base 703 on the rod to move, and simultaneously, the mounting base 703 drives the frame plate 9 to move, thereby causing the grinding component on the frame plate 9 to move left and right. This achieves the effect of uniform left and right movement of the grinding component, improving the grinding effect on the steering shaft surface.

[0050] Furthermore, by taking the shelf plate 9 with one's hand and moving it upwards, the connecting post 801 at the bottom of the shelf plate 9 can be moved out of the connecting groove 8 on the mounting base 703, thereby facilitating the disassembly and separation of the shelf plate 9 from the mounting base 703, and making it easier to disassemble and carry the shelf plate 9.

[0051] In addition, such as Figure 1 and 3 As shown,

[0052] A splash guard assembly for blocking waste chips is provided at the top center of the base 1. The splash guard assembly includes a first baffle plate 15, a chip collection groove 16, and a second baffle plate 17. The first baffle plate 15 is fixedly installed on the top of the base 1 and located at the inner end of the mounting base 703. The chip collection groove 16 is opened at the middle of the top of the base 1, and the second baffle plate 17 is provided at one end of the top opening of the chip collection groove 16. Several sets of mounting blocks 18 are fixedly installed at the bottom of the second baffle plate 17, and the mounting blocks 18 are snapped into corresponding mounting slots 1801 opened on the top of the base 1. The mounting slots 1801 and the mounting blocks 18 are compatible. The chip collection groove 16 is located below the grinding assembly.

[0053] This utility model uses components such as a first baffle plate 15, a chip collection groove 16, a second baffle plate 17, a mounting block 18, and a mounting groove 1801 to work together to effectively block the waste chips generated during the grinding of the steering shaft, preventing them from splashing out of the grinding device area. At the same time, the chip collection groove 16 allows the generated waste chips to fall directly into it for collection, facilitating subsequent cleaning. Furthermore, it also facilitates the disassembly and installation of the second baffle plate 17.

[0054] By removing the second baffle plate 17, several sets of mounting blocks 18 at its bottom are inserted into the corresponding mounting slots 1801 on the top of the base 1, so that the second baffle plate 17 is locked in place, thus providing a convenient shielding effect on both ends of the steering shaft. At the same time, the waste shavings generated from grinding the steering shaft are blocked by the first baffle plate 15 and the second baffle plate 17 and fall directly into the shavings collection groove 16 for collection, facilitating subsequent cleaning.

[0055] Model of Motor 3: Servo Motor 3, A6B-0304B, 400W, 3000rpm, supports bus control. Its principle: The built-in encoder feeds back the rotor position to the controller in real time, comparing it with input command signals (such as pulse, speed, or torque commands). The driver quickly adjusts the magnitude and direction of the current in the three-phase windings to generate precise electromagnetic torque, enabling the output shaft of Motor 3 to dynamically respond according to preset parameters (position / speed / torque), ultimately achieving high-precision positioning.

[0056] The model of the miniature clamping cylinder 6 is MHY2-16D. Its principle is as follows: the piston is driven to reciprocate by compressed air (double-acting structure), which pushes the gripper to close / open. The clamping force (about 50-200N) is generated by air pressure (0.1-0.7MPa). The magnetic ring senses the position signal and feeds it back to the PLC to realize the rapid clamping and release of the steering shaft.

[0057] The first electric telescopic rod 7 and the second electric telescopic rod 10 are both of the GL10-50 model. Their working principle is as follows: the ball screw is driven by the servo motor 3, which converts the rotary motion into linear displacement (stroke 50mm). The positioning accuracy is controlled by the encoder closed loop (±0.01mm), and the feed speed and thrust (maximum 100N) can be programmably adjusted.

[0058] The motor 3, the miniature clamping cylinder 6, the first electric telescopic rod 7, and the second electric telescopic rod 10 are all controlled by external control equipment.

[0059] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A steering shaft grinding device, comprising a base, a fixed seat, a rotating mechanism, an auxiliary clamping assembly, a grinding assembly, a moving assembly, and a splash-proof assembly, characterized in that: A fixed seat is fixedly installed at one top end of the base, and a rotating mechanism is installed on the top of the fixed seat. The rotating mechanism includes a motor, a rotating seat, a connecting seat, and a clamping seat. The motor is installed at one top end of the fixed seat, and the output end of the motor is fixedly connected to a rotating component inside the rotating seat. A connecting seat is fixed at one end of the rotating seat, and a clamping seat for clamping and fixing the steering shaft is fixedly installed at one end of the connecting seat. Among them, four sets of auxiliary clamping components for auxiliary clamping and fixing of the steering shaft are evenly distributed on the outside of the clamping seat; A grinding component for grinding the surface of the steering shaft is provided above the center of the top of the base; The back end of the top of the base is equipped with a moving component for the grinding component to move back and forth; The base has a splash-proof component at the top center for blocking debris.

2. The steering shaft grinding device according to claim 1, characterized in that: A support base is fixed to the other end of the top of the fixed base, and a rotating base is fixed inside the support base.

3. The steering shaft grinding device according to claim 1, characterized in that: The top of the motor is provided with a fixing ring, and the bottom two ends of the fixing ring are fixed to the fixing base by bolts.

4. The steering shaft grinding device according to claim 1, characterized in that: The auxiliary clamping assembly includes a miniature clamping cylinder, an L-shaped support rod, a first locking pin, a first column groove seat, and an arc-shaped clamping plate. The miniature clamping cylinder is fixedly installed on the outside of the clamping seat, and the output end of the miniature clamping cylinder is fixedly connected to the L-shaped support rod. The end of the L-shaped support rod near the steering shaft is fixed with the first locking pin, which is engaged inside the first column groove seat. The first column groove seat is fixedly installed on one side of the arc-shaped clamping plate.

5. The steering shaft grinding device according to claim 1, characterized in that: The movable component includes a first electric telescopic rod, a movable slot, a movable block, and a mounting base. The first electric telescopic rod is fixedly installed on the back side of one side of the base. A movable slot is provided on the back top of the base. The output end of the first electric telescopic rod, which passes through the movable slot, is fixedly connected to the movable block. The movable block is slidably connected to the movable slot. The top of the movable block is fixedly connected to the mounting base.

6. The steering shaft grinding device according to claim 5, characterized in that: The top of the mounting base is evenly provided with six sets of connecting slots, and connecting columns are snapped into the inside of the connecting slots. A frame plate is fixedly installed on the top of the connecting columns.

7. The steering shaft grinding device according to claim 1, characterized in that: The polishing assembly includes a second electric telescopic rod, a second locking post, a second column slot, an arc-shaped pressure plate, and sandpaper. The second electric telescopic rod is fixedly installed on the top of the frame plate, and four sets are provided. The output end of the second electric telescopic rod that passes through the frame plate is fixedly connected to the second locking post. The second locking post is engaged inside the second column slot. An arc-shaped pressure plate is fixedly installed at the bottom of the second column slot. Sandpaper is bonded to the bottom of the arc-shaped pressure plate with high-temperature resistant adhesive.

8. The steering shaft grinding device according to claim 1, characterized in that: The splash-proof assembly includes a first shield, a chip collection groove, and a second shield. The first shield is fixedly installed on the top of the base and located at the inner end of the mounting base. A chip collection groove is provided at the middle of the top of the base, and a second shield is provided at one end of the top opening of the chip collection groove.

9. A steering shaft grinding device according to claim 8, characterized in that: The bottom of the second shield is fixedly equipped with several sets of mounting blocks, and the mounting blocks are snapped into the corresponding mounting slots on the top of the base, with the mounting slots and mounting blocks being compatible.

10. A steering shaft grinding device according to claim 8, characterized in that: The chip collection groove is located below the grinding assembly.