A sweeping robot hair cutting blade grinding and forming equipment

Abstract

The utility model provides a kind of sweeping robot cutting blade grinding forming equipment, including device ontology, it is characterized in that, rotating motor is vertically installed in the inside bottom end of device ontology, mounting rack is installed in the output end of rotating motor, operating platform is installed in the top of mounting rack, electric ejector rod is vertically installed in the inside of mounting rack.The utility model drives support plate lifting by electric ejector rod, electric push rod drives horizontal movement of moving plate, and then make extruding rod can be all-round, accurate positioning fixed to sweeping robot cutting blade, avoid blade displacement in grinding process.Simultaneously, the rotating motor of device ontology inside bottom end, after blade is fixed, can drive mounting rack, operating platform and the blade fixed thereon rotate, realize the grinding of blade two sides, further guarantee the size and shape accuracy of blade after grinding, significantly improve the cutting effect and service life of blade.

Description

Technical Field

[0001] This utility model relates to the field of blade grinding and forming technology, and in particular to a device for grinding and forming hair-cutting blades for a sweeping robot. Background Technology

[0002] With the widespread use of robotic vacuum cleaners, the performance and quality requirements for their hair-cutting blades are becoming increasingly stringent.

[0003] Existing technologies for grinding and shaping hair-cutting blades for robotic vacuum cleaners have several shortcomings. For example, the blade positioning during the grinding process is not precise enough, making it difficult to guarantee the size and shape accuracy of the ground blade, which affects the cutting effect and service life of the blade. At the same time, the pressure applied during the grinding process cannot be flexibly adjusted according to the blade material and grinding stage, which can easily lead to over-grinding or under-grinding, reducing production efficiency and product qualification rate.

[0004] Therefore, it is necessary to provide a device for grinding and shaping the hair-cutting blades of a sweeping robot to solve the above-mentioned technical problems. Utility Model Content

[0005] This invention provides a grinding and shaping device for hair-cutting blades of a sweeping robot, which solves the problems in the background art. To solve the above-mentioned technical problems, this utility model provides a hair-cutting blade grinding and forming device for a sweeping robot, comprising a device body. A rotary motor is vertically fixed to the bottom of the device body via bolts. The output end of the rotary motor is connected to a mounting frame via a coupling, enabling the rotary motor to drive the mounting frame to rotate. An operating platform is welded to the top of the mounting frame, providing a platform for placing the blade. An electric push rod is vertically fixed to the mounting frame via bolts. The output end of the electric push rod is threadedly connected to a support plate, driving the support plate to rise and fall. Electric push rods are symmetrically fixed to the support plate via bolts. The output ends of the electric push rods are threadedly connected to a moving plate, enabling the moving plate to move horizontally. A pressing rod is vertically fixed to the top surface of the moving plate via welding, used to fix the blade. These components cooperate to achieve the positioning and fixing of the blade. The electric push rod and electric push rod can adjust the position of the pressing rod and the pressure on the blade as needed. Preferably, a drive cylinder is bolted to the outer surface of the device body, the output end of the drive cylinder passes through the surface of the device body and is fixedly connected to the drive motor by bolts, which can push the drive motor closer to or away from the blade; a grinding disc is mounted on the output end of the drive motor through a coupling, and the drive motor drives the grinding disc to rotate at high speed to perform grinding operation on the fixed blade. Preferably, a slide rail is provided through the surface of the operating table. The position of the slide rail corresponds to the movement path of the extrusion rod, and the width of the slide rail is equal to the width of the extrusion rod, so as to ensure that the extrusion rod can slide stably along the slide rail and enhance the stability and accuracy of fixing the blade. Preferably, multiple extrusion rods are installed, and the multiple extrusion rods are installed at equal intervals on the top surface of the moving plate. Through multi-point extrusion, blades of different shapes and sizes can be more firmly fixed, improving the fixing effect. Preferably, a sealing door is installed on the outer surface of the device body via a hinge, and the sealing door can be opened and closed by rotating around the hinge; a transparent observation window is installed on the sealing door by adhesive, so that the operator can observe the grinding of the internal blades when the equipment is running. Preferably, the bottom of the device body is bolted with support legs, and multiple sets of support legs are evenly distributed at the bottom of the device body to provide stable support for the equipment and ensure the stability of the equipment during operation. Preferably, a controller is bolted to the outer surface of the device body. The controller is connected to components such as a rotary motor, electric push rod, electric push rod, drive cylinder, and drive motor via wiring to achieve unified control and operation of the operating status of each component of the equipment.

[0006] Compared with related technologies, the hair-cutting blade grinding and forming equipment for sweeping robots provided by this utility model has the following beneficial effects: Compared to existing technologies, this device uses an electric push rod to raise and lower the support plate, and an electric push rod to drive the moving plate horizontally. This allows the extrusion rod to precisely position and fix the hair-cutting blade of the robotic vacuum cleaner from all angles, preventing blade displacement during the grinding process. Simultaneously, a rotary motor at the bottom of the device's main body rotates the mounting frame, operating table, and the blade fixed thereon after the blade is fixed, enabling grinding on both sides of the blade. This further ensures the dimensional and shape accuracy of the blade after grinding, significantly improving the cutting effect and lifespan of the blade.

[0007] Compared to existing technologies, the combination of electric push rods and electric actuators allows for flexible adjustment of the pressure applied to the blades based on different blade materials and different grinding stages. In the initial grinding stage, increased pressure improves grinding efficiency; as grinding nears completion, reduced pressure prevents over-grinding, effectively enhancing production efficiency and product yield.

[0008] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0009] Figure 1 A schematic diagram of a device for grinding and shaping hair-cutting blades for a sweeping robot provided by this utility model; Figure 2 A schematic diagram of the rotary motor structure of a hair-cutting blade grinding and forming device for a sweeping robot provided by this utility model; Figure 3 A schematic diagram of the extrusion rod structure of a hair-cutting blade grinding and forming device for a sweeping robot provided by this utility model; Figure 4 A schematic diagram of the slide structure of a hair-cutting blade grinding and forming device for a sweeping robot provided by this utility model.

[0010] Numbering on the map: 1. Device body; 2. Rotary motor; 3. Mounting frame; 4. Controller; 5. Grinding disc; 6. Drive motor; 7. Drive cylinder; 8. Electric push rod; 9. Operating table; 10. Support plate; 11. Electric push rod; 12. Moving plate; 13. Pressing rod; 14. Slide rail. Detailed Implementation

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0012] Example 1 Please refer to the following: Figure 1-4 A device for grinding and shaping hair-cutting blades for a sweeping robot includes a device body 1. A motor mounting platform is pre-installed at the bottom of the device body 1. A rotary motor 2 is vertically fixed to this platform using anchor bolts to ensure stable operation. The output shaft of the rotary motor 2 faces upwards and is rigidly connected to the flange at the bottom center of the mounting frame 3 via a flexible coupling. The flexible coupling compensates for radial and angular misalignments between the two shafts, reducing vibration transmission and enabling the rotary motor 2 to drive the mounting frame 3 to rotate 360°. The mounting frame 3 is a hollow cylindrical structure with a flange machined on its top surface. It is connected to the flange on the bottom surface of the operating table 9 via bolts evenly distributed around its circumference. Rubber sealing gaskets are installed between the flanges to prevent grinding debris from entering the interior of the mounting frame 3. Furthermore, the center of the operating table 9 coincides with the axis of the mounting frame 3, ensuring dynamic balance during rotation. The electric jack 8 is vertically mounted inside the mounting bracket 3 via bolts. The trapezoidal threaded screw at the output end of the electric jack 8 mates with the threaded seat on the bottom surface of the support plate 10. A thrust ball bearing is added to the head of the screw to reduce axial friction and achieve vertical lifting of the support plate 10 with a stroke of ±200mm. Electric push rods 11 are symmetrically mounted on the support plate 10 via bolts. The two ends of the electric push rods 11 are hinged to the side lugs of the support plate 10 and the back lugs of the moving plate 12 via spherical bearings, respectively. The spherical bearings can automatically adjust to compensate for installation errors, driving the moving plate 12 to move in opposite directions along the slide rail 14. A pressing rod 13 is vertically mounted on the top surface of the moving plate 12 via welding. The cylindrical bottom of the pressing rod 13 is interference-fitted with the hole on the top surface of the moving plate 12 and locked with a set screw to ensure vertical fixation. Multiple equally spaced extrusion rods 13, together with the slide rails 14 on the surface of the operating table 9, enable precise positioning and fixation of the blade. At the same time, the position and pressure of the extrusion rods 13 can be flexibly adjusted by the electric push rod 8 and the electric push rod 11 according to the blade size and grinding requirements.

[0013] Example 2 Please refer to the following: Figure 1-4 The drive cylinder 7 is bolted to the outer surface of the device body 1. The piston rod head of the drive cylinder 7 is hinged to the mounting base of the drive motor 6 via a floating joint. The floating joint can compensate for the angular deviation between the cylinder and the motor. The guide rail slider assembly on the bottom surface of the mounting base of the drive motor 6 cooperates with the guide rail on the side of the device body 1 to ensure the linear motion accuracy of the motor. The output shaft of the drive motor 6 is connected to the center hole of the grinding disc 5 via a flat key and locked with a round nut to ensure reliable torque transmission. The drive cylinder 7 provides linear driving force to drive the drive motor 6 and the grinding disc 5 to achieve feed motion. By adjusting the cylinder air pressure, the grinding pressure of the grinding disc 5 on the blade can be controlled to avoid excessive pressure causing blade deformation or over-grinding, thus achieving efficient grinding of the fixed blade.

[0014] Example 3 Please refer to the following: Figure 1-4 A slide rail 14 is formed through the surface of the operating table 9, its position corresponding to the movement path of the extrusion rod 13, and its internal width matching the width of the extrusion rod 13. The slide rail 14 has a rectangular cross-section, with both sides ground and inlaid with PTFE guide rails to reduce the coefficient of friction when the extrusion rod 13 slides. The extrusion rod 13 and the slide rail 14 are fitted with a clearance fit, which ensures the free sliding of the extrusion rod 13 while effectively constraining its lateral displacement, ensuring the positioning accuracy of the blade. When the electric push rod 11 drives the moving plate 12, the extrusion rod 13 moves linearly along the slide rail 14. Through the guiding effect of the slide rail 14, the movement trajectory of multiple extrusion rods 13 is precisely controlled within the same plane, achieving parallel clamping of the blade, avoiding blade skewing due to uneven force, and enhancing the stability and accuracy of blade fixing.

[0015] Example 4 Please refer to the following: Figure 1-4 Multiple extrusion rods 13 are evenly spaced on the top surface of the movable plate 12. The heads of the extrusion rods 13 are designed with rounded corners to avoid scratching the blade surface and to increase the contact area. The multiple extrusion rods 13 can more firmly fix blades of different shapes and sizes through multi-point extrusion. Whether it is a rectangular or round blade, reliable fixing can be achieved by adjusting the position and pressure of the extrusion rods 13, improving the fixing effect and providing a guarantee for subsequent precise grinding.

[0016] Example 5 Please refer to the following: Figure 1-4 A sealing door is installed on the outer surface of the device body 1 via a hinge. The sealing door can rotate around the hinge to open and close. A silicone rubber sealing ring is embedded around the door frame. When the sealing door is closed, a pre-tightening force is applied by the door lock to compress the sealing ring, effectively preventing dust from spilling out during the grinding process. A transparent observation window made of plexiglass is glued to the center of the sealing door, allowing operators to monitor the grinding process in real time, promptly detect and handle abnormalities, and ensure the safe operation of the equipment and the grinding quality.

[0017] Example 6 Please refer to the following: Figure 1-4 The device body 1 has multiple sets of support legs bolted to its bottom. These support legs are made of square steel pipes with welded flanges at the top, connected to the bottom of the device body 1 by bolts. Rubber shock-absorbing pads are installed between the flanges. Adjustable feet are installed at the bottom of the support legs to adjust their height. The multiple sets of support legs are evenly distributed at the four corners of the device body 1, bearing the total weight of the equipment. The shock-absorbing pads absorb vibrations generated during operation, preventing vibrations from being transmitted to the ground and causing resonance. Simultaneously, the adjustable feet ensure the equipment remains level on uneven ground, guaranteeing stability during operation and providing a stable foundation for grinding work.

[0018] Example 7 Please refer to the following: Figure 1-4The controller 4 is bolted to the outer surface of the device body 1. The controller 4 is connected to components such as the rotary motor 2, electric push rod 8, electric push rod 11, drive cylinder 7, and drive motor 6 via wiring. The controller 4 uses PLC control and is connected to each actuator via a bus. The rotary motor 2 uses frequency conversion speed regulation, the electric push rod 8 and electric push rod 11 are controlled by servo drivers, and the drive cylinder 7 is controlled by a solenoid valve. The controller 4 has a built-in pressure control module that monitors the pressure of the extrusion rod 13 on the blade in real time through a pressure sensor and adjusts it according to the set value. Throughout the grinding process, the controller 4, according to a preset program and logic, achieves unified control and operation of the operating status of each component of the equipment, including the coordinated action of blade positioning, rotation, grinding pressure adjustment, and grinding disc 5 feeding, thereby realizing automated operation of the equipment, significantly improving blade positioning accuracy, making grinding pressure control more precise, and significantly improving production efficiency and product qualification rate.

[0019] It should be noted that the control circuit of controller 4 can be implemented by simple programming by those skilled in the art, and is common knowledge in the field. It is only used and not modified, so the control method and circuit connection will not be described in detail.

[0020] The working principle of the hair-cutting blade grinding and shaping device for a sweeping robot provided by this utility model is as follows: When using the hair-cutting blade grinding and shaping equipment for this sweeping robot, first open the sealed door and place the hair-cutting blade to be ground on the surface of the operating table 9. Then, activate the electric push rod 8 inside the mounting bracket 3. The output end of the electric push rod 8 pushes the support plate 10 upward, bringing the electric push rod 11 and the moving plate 12 on the support plate 10 closer to the blade. Next, activate the electric push rod 11. The output end of the electric push rod 11 pushes the moving plate 12 horizontally. The pressing rod 13 at the top of the moving plate 12 gradually approaches the blade and, according to the shape and size of the blade, precisely presses and fixes it to the surface of the operating table 9. Because a slide rail 14 is provided through the surface of the operating table 9, and the width of the slide rail 14 is equal to the width of the pressing rod 13, the pressing rod 13 can slide stably along the slide rail 14 during movement, further ensuring the accuracy of blade positioning. After the blade is fixed, close the sealing door. First, start the rotary motor 2 at the bottom of the device body 1 to rotate the mounting bracket 3, operating table 9, and blade, preparing for subsequent grinding on both sides of the blade. Then, start the drive cylinder 7 on the outside of the device body 1. The output end of the drive cylinder 7 passes through the surface of the device body 1, pushing the drive motor 6 fixed at its end closer to the blade. Then start the drive motor 6 again, and the output end of the drive motor 6 drives the grinding disc 5 to rotate at high speed, grinding the rotating blade. During the grinding process, the pressure of the extrusion rod 13 on the blade can be flexibly adjusted by controlling the electric push rod 8 and the electric push rod 11 according to the blade material and grinding stage to achieve the best grinding effect. Throughout the grinding process, the operator can observe the grinding progress of the blades in real time through the transparent observation window on the sealed door. After grinding is completed, the drive motor 6 and drive cylinder 7 are first turned off to reset the grinding disc 5; then the rotary motor 2 is turned off to stop the blade rotation; finally, the extrusion rod 13 is released by the electric push rod 8 and electric push rod 11 to open the sealed door and remove the ground blades. Meanwhile, multiple sets of support legs installed at the bottom of the device body 1 ensure the stability of the equipment during operation, while the controller 4 installed on the outer surface of the device body 1 is used for unified control and operation of the various components of the equipment, ensuring that the entire grinding and forming process is carried out safely, efficiently, and accurately.

[0021] It should be noted that all components used in this application are standard parts that can be purchased from the market. The specific connection methods of each part adopt conventional methods such as bolts, rivets and welding that are mature in the prior art. The mechanical parts and electrical equipment adopt conventional models in the prior art. The circuit connection adopts conventional connection methods in the prior art. The electrical equipment is connected to an external safe power source. These will not be described in detail here.

[0022] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

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