Burr polishing device for flat key production
By designing an automated flat key grinding device, which uses motors and cylinders to drive the precise positioning and rotation of the flat key, the problem of low efficiency and unstable quality in traditional manual grinding is solved, and efficient and precise flat key grinding is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2026-03-06
AI Technical Summary
Traditional manual sanding of flat keys is inefficient, produces inconsistent quality, and is difficult to meet standardization requirements, thus affecting production efficiency and costs.
An automated grinding device was designed, comprising a positioning device, a limiting frame, an electric telescopic rod, a gripper, and a grinding head. The device achieves precise positioning and rotation of the flat key through motor drive and cylinder positioning, ensuring processing accuracy and efficiency.
This improved the efficiency and precision of flat key grinding, ensured product quality consistency, and reduced production costs.
Smart Images

Figure CN223971385U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of grinding devices, and in particular to a deburring device for flat key production. Background Technology
[0002] A flat key is a mechanical part mainly used to connect shafts and hubs to transmit torque. This type of key has a rectangular cross-section, and its length is usually greater than its width and height. Therefore, in the keyway of the shaft and hub, the flat key can provide a large contact area, thereby ensuring good load-bearing capacity and torsional resistance. Flat keys are widely used and play an important role in various mechanical equipment. For example, in automobiles, machine tools, motors and other industrial equipment, flat keys are indispensable connecting elements.
[0003] However, in the production process of flat keys, deburring is a crucial step. Traditional manual deburring methods are not only inefficient, but also rely on the skills and experience of workers, which can lead to fluctuations in the quality of the produced flat keys and make it difficult to meet standardized requirements. In addition, the manual deburring process is also time-consuming, which directly affects the efficiency of the entire production process and the production costs and market competitiveness of enterprises.
[0004] To address this issue, a deburring device for flat key production is proposed to solve the aforementioned problems. Utility Model Content
[0005] In order to overcome the shortcomings of the existing technology, this utility model provides a deburring device for flat key production.
[0006] This utility model is achieved using the following technical solution:
[0007] A deburring device for flat key production, comprising:
[0008] A workbench, the top of which is equipped with a positioning device, a pad is provided on one side of the positioning device, a material feeding trough is provided on the top of the positioning device near the pad, and fixing plates are provided on both sides of the material feeding trough;
[0009] The top of the platform is provided with a limiting frame, and two connecting sleeves are provided at both ends of the limiting frame. A first rotating shaft is movably installed inside the two connecting sleeves, and a large tooth is provided in the middle of the first rotating shaft. One end of the first rotating shaft is connected to an electric telescopic rod, and a pneumatic gripper is installed at the other end of the electric telescopic rod. Two grippers are provided on one side of the pneumatic gripper, and anti-slip strips are provided on the inner side of both grippers.
[0010] The limiting frame has two tripods on one side, and a first motor is provided on the top of the two tripods. The output end of the first motor is provided with a second rotating shaft, and the second rotating shaft is equipped with small teeth, which are meshed with large teeth.
[0011] As a preferred embodiment of this utility model, the positioning device is provided with two cylinders on the top, the two cylinders are located on both sides of the positioning plate, the output end of the two cylinders is provided with a piston rod, the end of the piston rod is installed with a positioning plate, and a fixing strip is provided on one side of the positioning plate.
[0012] As a preferred embodiment of this utility model, the positioning device has a plurality of support columns on the side away from the two cylinders at the top, a support plate is provided on the top of the plurality of support columns, a second motor is provided on the top of the support plate, the output end of the second motor passes through the support plate and is connected to a lead screw, and a guide rod is provided on one side of the lead screw.
[0013] As a preferred embodiment of this utility model, a movable plate is provided below the support plate, a threaded sleeve is provided on the surface of the movable plate, a movable sleeve is provided on one side of the threaded sleeve, the threaded sleeve is movably installed on the peripheral wall of the lead screw, and the movable sleeve is installed on the peripheral wall of the guide rod.
[0014] As a preferred embodiment of this utility model, a third motor is provided on the side of the movable plate away from the threaded sleeve, and a grinding head is movably connected to the output end of the third motor.
[0015] Compared with existing technologies, the advantages of this utility model are:
[0016] 1. By providing a platform on one side of the positioning device and a limiting frame on the top of the platform, a first rotating shaft is movably installed in the connecting sleeve of the limiting frame, and a second rotating shaft is engaged with a small tooth to make the rotation more precise. An electric telescopic rod is provided at one end of the first rotating shaft. In actual use, the flat key that needs to be deburred is placed in the feeding groove for processing on one side. After processing on one side, the electric telescopic rod extends horizontally, allowing the two grippers installed on one side of the pneumatic gripper to grab the flat key. The electric telescopic rod retracts a certain distance, and then the first motor drives the second rotating shaft to rotate, causing the small tooth to engage with the large tooth, thus rotating the first rotating shaft and flipping the flat key. The flipped flat key is then placed back into the feeding groove for processing on the other side. This method is convenient and quick, improves work efficiency, and ensures processing accuracy.
[0017] 2. Fixing plates are provided on both sides of the feeding platform at the top of the workbench to fix the flat key. Two cylinders are provided on both sides of the fixing plates. The two cylinders drive the piston rod to move the positioning plate and accurately position the flat key. A fixing strip is provided on the side of the positioning plate near the flat key to ensure the stability of the flat key during the processing.
[0018] 3. Anti-slip strips are provided on the inside of the gripper, which allows the gripper to hold firmly when grasping the flat key, reducing slippage and ensuring the safety and efficiency of operation. Attached Figure Description
[0019] Figure 1This is an overall structural diagram of the present invention;
[0020] Figure 2 This is an exploded view of the present invention;
[0021] Figure 3 This is a structural diagram of the pad platform of this utility model;
[0022] Figure 4 This is a structural diagram of the positioning device of this utility model;
[0023] In the diagram: 1. Workbench; 2. Positioning device; 3. Feed chute; 4. Fixing plate; 5. Cylinder; 6. Piston rod; 7. Positioning plate; 8. Fixing strip; 9. Pad; 10. Limiting frame; 11. Connecting sleeve; 12. First rotating shaft; 13. Large gear; 14. Electric telescopic rod; 15. Pneumatic gripper; 16. Grappling device; 17. Anti-slip strip; 18. Tripod; 19. First motor; 20. Second rotating shaft; 21. Small gear; 22. Support column; 23. Support plate; 24. Second motor; 25. Lead screw; 26. Guide rod; 27. Threaded sleeve; 28. Movable sleeve; 29. Movable plate; 30. Third motor; 31. Grinding head. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0025] Example:
[0026] Please see Figures 1-4 A deburring device for flat key production, comprising:
[0027] Workbench 1, the top of the workbench 1 is provided with a positioning device 2, a pad 9 is provided on one side of the positioning device 2, a material feeding groove 3 is provided on the top of the positioning device 2 near the pad 9, and a fixing plate 4 is provided on both sides of the material feeding groove 3.
[0028] The top of the platform 9 is provided with a limiting frame 10. The limiting frame 10 has two connecting sleeves 11 at both ends. A first rotating shaft 12 is movably installed in the two connecting sleeves 11. A large tooth 13 is provided in the middle of the first rotating shaft 12. One end of the first rotating shaft 12 is connected to an electric telescopic rod 14. A pneumatic gripper 15 is installed at the other end of the electric telescopic rod 14. Two grippers 16 are provided on one side of the pneumatic gripper 15. Anti-slip strips 17 are provided on the inner side of each of the two grippers 16.
[0029] The limiting frame 10 has two tripods 18 on one side, and a first motor 19 is provided on the top of the two tripods 18. The output end of the first motor 19 is provided with a second rotating shaft 20. The second rotating shaft 20 is equipped with a small tooth 21, and the small tooth 21 is meshed with the large tooth 13.
[0030] In this embodiment, a positioning device 2 is provided on the top of the workbench 1, a pad 9 is provided on one side of the positioning device 2, and a feeding groove 3 is provided on the top of the positioning device 2. The feeding groove 3 is located near the pad 9. Fixing plates 4 are provided on both sides of the feeding groove 3 to support and fix the flat key. A limiting frame 10 is provided on the top of the pad 9, and two connecting sleeves 11 are provided at both ends of the limiting frame 10. A first rotating shaft 12 is movably installed in the two connecting sleeves 11, and a large tooth 13 is provided in the middle of the first rotating shaft 12. The large tooth 13 is located between the two connecting sleeves 11. An electric telescopic rod 14 is connected to one end of the first rotating shaft 12, and a pneumatic gripper 15 is installed on the other end of the electric telescopic rod 14. Two grippers 16 are provided on one side of the pneumatic gripper 15, and the two grippers 16 are oriented close to the feeding groove 3. Anti-slip strips 17 are provided on the inner side of the two grippers 16. To ensure that there are no errors caused by slippage when gripping the flat key, two tripods 18 are provided on one side of the limit frame 10. A first motor 19 is installed on the top of the tripod 18. The output end of the first motor 19 is connected to the second rotating shaft 20. The second rotating shaft 20 is equipped with small teeth 21, which mesh with large teeth 13 to form a stable transmission mechanism. When one side of the flat key is finished and needs to be flipped, the electric telescopic rod 14 extends, bringing the pneumatic gripper 15 close to the feeding groove 3. The gripper 16 grips the flat key. After the gripper 16 grips the flat key, the electric telescopic rod 14 retracts a certain distance, and the first motor 19 drives the second rotating shaft 20 to rotate. The small teeth 21 drive the large teeth 13 to rotate, realizing a 180-degree flip of the flat key. After flipping, the electric telescopic rod 14 extends to the feeding groove 3 again, and the pneumatic gripper 15 fixes the flat key in the feeding groove 3 for grinding work on the other side.
[0031] Specifically, the positioning device 2 has two cylinders 5 on the top, the two cylinders 5 are located on both sides of the positioning plate 7, the output end of the two cylinders 5 is provided with piston rods 6, the end of the piston rods 6 is installed with the positioning plate 7, and a fixing strip 8 is provided on one side of the positioning plate 7.
[0032] In this embodiment, there are two cylinders 5, which are located on both sides of the positioning plate 7 at the top of the positioning device 2. The output end of the two cylinders 5 is provided with a piston rod 6, and the end of the piston rod 6 is provided with a positioning plate 7. One end of the positioning plate 7 is provided with a fixing strip 8, which is used to accurately position the flat key on the worktable 1. When the cylinder 5 is activated, the piston rod 6 pushes the positioning plate 7 to move, accurately positioning the flat key and ensuring that it remains stable during the processing, thereby improving the processing accuracy and work efficiency.
[0033] Specifically, the positioning device 2 has multiple support columns 22 on the side away from the two cylinders 5 at the top. The top of the multiple support columns 22 is provided with a support plate 23. The top of the support plate 23 is provided with a second motor 24. The output end of the second motor 24 passes through the support plate 23 and is connected to a lead screw 25. A guide rod 26 is provided on one side of the lead screw 25.
[0034] In this embodiment, the positioning device 2 is provided with a plurality of support columns 22 on the top, and the plurality of support columns 22 are located on the side away from the two cylinders 5. A support plate 23 is installed on the top of the plurality of support columns 22, and a second motor 24 is provided on the support plate 23. A lead screw 25 is provided through the support plate 23 at the output end of the motor. A guide rod 26 is provided on one side of the lead screw 25. Both the lead screw 25 and the guide rod 26 are located at the bottom of the support plate 23.
[0035] Specifically, a movable plate 29 is provided below the support plate 23, a threaded sleeve 27 is provided on the surface of the movable plate 29, and a movable sleeve 28 is provided on one side of the threaded sleeve 27. The threaded sleeve 27 is movably installed on the peripheral wall of the lead screw 25, and the movable sleeve 28 is installed on the peripheral wall of the guide rod 26.
[0036] In this embodiment, a movable plate 29 is provided between the lower part of the support plate 23 and the upper part of the positioning device 2. A threaded sleeve 27 is provided on the movable plate 29, and a movable sleeve 28 is provided on one side of the threaded sleeve 27. The threaded sleeve 27 is tightly fitted with the lead screw 25, and the movable sleeve 28 is connected to the guide rod 26. When the lead screw 25 rotates, the threaded sleeve 27 drives the movable plate 29 to move up and down to achieve precise adjustment and ensure the grinding accuracy of the flat key.
[0037] Specifically, a third motor 30 is provided on the side of the movable plate 29 away from the threaded sleeve 27, and a grinding head 31 is movably connected to the output end of the third motor 30.
[0038] In this embodiment, a third motor 30 is provided on the top of the movable plate 29 away from the threaded sleeve 27. The output end of the third motor 30 is connected to a grinding head 31. The grinding head 31 moves with the movable plate 29 to precisely grind the surface of the flat key, ensuring a smooth surface and improving the processing quality.
[0039] The principle of this invention is as follows: A flat key requiring deburring is placed in the feeding trough 3. The second motor 24 drives the lead screw 25 to rotate, causing the threaded sleeve 27 to descend along with the movable plate 29 driven by the lead screw 25, bringing the grinding head 31 close to the surface of the flat key. Then, two cylinders 5 drive the piston rod 6 to push the positioning plate 7, fixing both sides of the flat key. Subsequently, the third motor 30 starts, and the grinding head 31 begins to rotate, grinding the flat key. Once one side of the flat key is finished being ground, the second motor 24 rotates in the opposite direction, and the movable plate 29... As the key rises, the two cylinders 5 drive the positioning plate 7 to retract, the electric telescopic rod 14 extends, the pneumatic gripper 15 approaches and grabs the key, the electric telescopic rod 14 retracts a certain distance, then the first motor 19 drives the second rotating shaft 20 to rotate, causing the small tooth 21 to mesh with the large tooth 13, causing the first rotating shaft 12 to rotate, thereby realizing the flipping of the key. The flipped key is then sent to the discharge trough 3 by the electric telescopic rod 14 for grinding on the other side. This cycle continues until both sides of the key achieve the ideal smoothness.
[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.
Claims
1. A burr polishing device for flat key production, characterized in that, Include: Workbench, the top of the positioning device is provided with a side of the pad, the top of the positioning device is provided with a material placing groove near the side of the pad, and the material placing groove is provided with a fixed plate on both sides; The top of the pad is provided with a limiting frame, two connecting sleeves are arranged at the both ends of the limiting frame, a first rotating shaft is movably installed in the two connecting sleeves, a large tooth is arranged at the middle position of the first rotating shaft, one end of the first rotating shaft is connected with an electric telescopic rod, the other end of the electric telescopic rod is installed with a gas claw, two grabbers are arranged on one side of the gas claw, and anti-skid strips are arranged on the inner sides of the two grabbers; The limiting frame is provided with two tripods on one side, the top of the two tripods is provided with a first motor, the output end of the first motor is provided with a second rotating shaft, the second rotating shaft is installed with a small tooth, and the small tooth is in meshing connection with the large tooth.
2. The burr polishing device for flat key production according to claim 1, characterized in that: The top of the positioning device is provided with two air cylinders, the two air cylinders are located on both sides of the positioning plate, the output end of the two air cylinders is provided with a piston rod, the piston rod is installed with a positioning plate at the tail end, and the positioning plate is provided with a fixed strip on one side.
3. The burr polishing device for flat key production according to claim 2, characterized in that: The top of the positioning device is provided with a plurality of supporting columns away from the side of the two air cylinders, the top of the plurality of supporting columns is provided with a supporting plate, the top of the supporting plate is provided with a second motor, the output end of the second motor penetrates the supporting plate and is connected with a lead screw, and a guide rod is arranged on one side of the lead screw.
4. The burr polishing device for flat key production according to claim 3, characterized in that: The supporting plate is provided with a movable plate below, the surface of the movable plate is provided with a threaded sleeve, the threaded sleeve is provided with a movable sleeve on one side, the threaded sleeve is movably installed on the peripheral wall of the lead screw, and the movable sleeve is installed on the peripheral wall of the guide rod.
5. The burr polishing device for flat key production according to claim 4, characterized in that: The movable plate is provided with a third motor away from the threaded sleeve, and the output end of the third motor is movably connected with a polishing head.