Workpiece clamping table for sharpening knife
By introducing a rotation and movement mechanism into the workpiece clamping table, the automatic flipping and stable clamping of the tool are achieved, solving the problem of inconvenient tool flipping in the existing technology and improving grinding efficiency and convenience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-04-03
AI Technical Summary
The existing workpiece clamping table is not convenient for rotating the tool during grinding, which means that the tool needs to be removed and rotated for grinding the other side, reducing grinding efficiency and convenience.
By employing a rotating mechanism and a moving mechanism, the clamping table is rotated by a worm gear driven by a first servo motor, and the positioning plate is moved by a limit structure and a threaded rod driven by a second servo motor, thereby achieving automatic rotation and stable clamping of the tool.
It improves the efficiency and convenience of tool grinding, ensures that the tool is more stable and faster during the grinding process, and enhances the practicality of the workpiece clamp.
Smart Images

Figure CN224074093U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of workpiece clamping technology, and in particular to a workpiece clamping platform for grinding tools. Background Technology
[0002] Cutting tools are tools used for cutting processes in mechanical manufacturing. The vast majority of cutting tools are machine-made, but some are hand-operated. Since cutting tools used in mechanical manufacturing are primarily for cutting metal materials, the term "cutting tool" is generally understood as a metal cutting tool. Tools used for cutting wood are called woodworking tools. There is also a category of household knives; after prolonged use, these knives need to be sharpened, requiring a workpiece clamp for holding them in place.
[0003] When sharpening cutting tools, both sides of the tool need to be sharpened. Existing clamping devices are inconvenient to rotate the tool during use. Therefore, when sharpening the other side of the tool, it is necessary to remove the tool and flip it for clamping, which reduces the efficiency of sharpening and thus reduces the convenience of the workpiece clamp during sharpening. Therefore, this utility model proposes a workpiece clamp for sharpening tools to solve the above problems. Utility Model Content
[0004] To address the aforementioned problems, this utility model proposes a workpiece clamp for grinding tools, which solves the problem in the prior art where it is inconvenient to rotate the tool. Therefore, when grinding the other side of the tool, it is necessary to remove the tool and rotate and clamp it, resulting in low efficiency during grinding and thus reducing the convenience of the workpiece clamp during grinding.
[0005] To achieve the purpose of this utility model, the utility model is implemented through the following technical solution: a workpiece clamping table for sharpening tools, including a base plate, a side plate installed on one side of the top of the base plate, a rotating mechanism provided inside the side plate, a clamping table provided on the inner side of the side plate, a clamping groove provided inside the clamping table, a positioning plate provided inside the clamping groove, an installation cavity installed at the top of the clamping table, and a moving mechanism provided inside the installation cavity;
[0006] The rotating mechanism includes a first servo motor, a worm gear, a worm wheel, and a limiting structure. The first servo motor is mounted on the top of the side plate, the worm gear is mounted inside the side plate, the output end of the first servo motor is connected to one end of the worm gear, a worm wheel meshes with one side of the worm gear, and one end of the worm wheel is connected to one side of the clamping table.
[0007] A further improvement is that the limiting structure includes a limiting groove, a limiting block, and a connecting rod. The limiting groove is opened inside the side plate, and a limiting block is provided inside the limiting groove. A connecting rod is installed at one end of the limiting block, and one end of the connecting rod is connected to one side of the clamping table.
[0008] A further improvement is that two limiting blocks are provided inside the limiting groove, and the two limiting blocks are symmetrically distributed about the central axis of the limiting groove.
[0009] A further improvement is made in that: the moving mechanism includes a second servo motor, a threaded rod, a threaded sleeve, a movable cavity, and a positioning structure. The second servo motor is installed at the top of the mounting cavity, the threaded rod is installed inside the mounting cavity, the output end of the second servo motor is connected to one end of the threaded rod, a threaded sleeve is provided on the outer wall of the threaded rod, a movable cavity is fixedly installed on the outer wall of the threaded sleeve, the bottom end of the movable cavity extends to the inner side of the clamping table, and the bottom end of the movable cavity is connected to the top of the positioning plate.
[0010] A further improvement is that the positioning structure includes a positioning groove and a positioning block. The positioning groove is opened on both sides inside the mounting cavity, and a positioning block is provided inside the positioning groove. One end of the positioning block is connected to the outside of the movable cavity.
[0011] A further improvement is that the cross-section of the positioning groove is larger than the cross-section of the positioning block, and the positioning groove and the positioning block form a sliding structure.
[0012] The beneficial effects of this utility model are as follows: By setting a rotating mechanism inside the side plate, the interaction between the first servo motor, worm gear, worm wheel, limiting groove, limiting block and connecting rod of the rotating mechanism can drive the clamped tool to rotate, making the tool grinding more convenient and faster, thus increasing the grinding efficiency and greatly improving the convenience of the workpiece clamp in use; By setting a moving mechanism inside the mounting cavity, the interaction between the second servo motor, threaded rod, threaded sleeve, movable cavity, positioning groove and positioning block of the moving mechanism can drive the positioning plate to move, using the positioning plate to clamp the tool, making the tool more stable during grinding, and making the tool clamping and positioning more convenient and faster, thus greatly improving the practicality of the workpiece clamp in use. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the overall structure of the rotating mechanism of this utility model;
[0015] Figure 3This is a schematic cross-sectional view of the rotating mechanism of this utility model;
[0016] Figure 4 This is a schematic diagram of the overall structure of the moving mechanism of this utility model.
[0017] The components are: 1. Base plate; 2. Side plate; 3. Clamping platform; 4. Clamping groove; 5. Positioning plate; 6. Mounting cavity; 7. First servo motor; 8. Worm gear; 9. Worm wheel; 10. Limiting groove; 11. Limiting block; 12. Connecting rod; 13. Second servo motor; 14. Threaded rod; 15. Threaded sleeve; 16. Movable cavity; 17. Positioning groove; 18. Positioning block. Detailed Implementation
[0018] To enhance understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are for illustrative purposes only and do not constitute a limitation on the scope of protection of this utility model.
[0019] according to Figure 1 , 2 As shown in Figures 3 and 4, this embodiment proposes a workpiece clamping table for grinding tools, including a base plate 1, a side plate 2 installed on one side of the top of the base plate 1, a rotating mechanism provided inside the side plate 2, a clamping table 3 provided on the inner side of the side plate 2, a clamping groove 4 provided inside the clamping table 3, a positioning plate 5 provided inside the clamping groove 4, and an installation cavity 6 installed at the top of the clamping table 3, with a moving mechanism provided inside the installation cavity 6.
[0020] The rotating mechanism includes a first servo motor 7, a worm gear 8, a worm wheel 9, and a limiting structure. The first servo motor 7 is mounted on the top of the side plate 2, and the worm gear 8 is mounted inside the side plate 2. The output end of the first servo motor 7 is connected to one end of the worm gear 8. The worm wheel 9 is meshed on one side of the worm gear 8, and one end of the worm wheel 9 is connected to one side of the clamping table 3. In use, the first servo motor 7 is started to drive the worm gear 8 to rotate. Since the worm gear 8 and the worm wheel 9 are meshed with each other, the worm wheel 9 is driven to rotate. Under the limiting of the limiting groove 10, the limiting block 11, and the connecting rod 12, the clamping table 3 is driven to rotate by the worm wheel 9, which in turn drives the tool to rotate. This allows the clamped tool to be rotated, making it more convenient and faster to grind the tool, thus increasing the grinding efficiency and greatly improving the convenience of using the workpiece clamping table.
[0021] The limiting structure includes a limiting groove 10, a limiting block 11, and a connecting rod 12. The limiting groove 10 is formed inside the side plate 2. The limiting block 11 is provided inside the limiting groove 10. A connecting rod 12 is installed at one end of the limiting block 11. One end of the connecting rod 12 is connected to one side of the clamping platform 3. Two limiting blocks 11 are provided inside the limiting groove 10. The two limiting blocks 11 are symmetrically distributed about the central axis of the limiting groove 10. In use, the mutual cooperation between the limiting groove 10 and the limiting block 11 can limit the clamping platform 3 when it rotates, making the clamping platform 3 more stable when rotating.
[0022] The moving mechanism includes a second servo motor 13, a threaded rod 14, a threaded sleeve 15, a movable cavity 16, and a positioning structure. The second servo motor 13 is installed at the top of the mounting cavity 6, and the threaded rod 14 is installed inside the mounting cavity 6. The output end of the second servo motor 13 is connected to one end of the threaded rod 14. A threaded sleeve 15 is provided on the outer wall of the threaded rod 14, and a movable cavity 16 is fixedly installed on the outer wall of the threaded sleeve 15. The bottom end of the movable cavity 16 extends to the inner side of the clamping table 3, and the bottom end of the movable cavity 16 is connected to the top of the positioning plate 5. In use, the second servo motor 13 is started to drive the threaded rod 14 to rotate, thus driving the threaded sleeve 15 to move. Under the limitation of the positioning groove 17 and the positioning block 18, the threaded sleeve 15 drives the movable cavity 16 to move, which in turn drives the positioning plate 5 to move. The positioning plate 5 is used to clamp and fix the tool, making the tool more stable during grinding and making the tool clamping and positioning more convenient and faster, thereby greatly improving the practicality of the workpiece clamping table in use.
[0023] The positioning structure includes a positioning groove 17 and a positioning block 18. The positioning groove 17 is formed on both sides inside the mounting cavity 6. The positioning block 18 is disposed inside the positioning groove 17. One end of the positioning block 18 is connected to the outside of the movable cavity 16. The cross-section of the positioning groove 17 is larger than the cross-section of the positioning block 18. The positioning groove 17 and the positioning block 18 form a sliding structure. In use, the mutual cooperation between the positioning groove 17 and the positioning block 18 can limit the movement of the movable cavity 16, making the movable cavity 16 more stable when moving.
[0024] Working principle: The operator first places one end of the tool into the clamping groove 4, then starts the second servo motor 13 to drive the threaded rod 14 to rotate, which in turn moves the threaded sleeve 15. Under the limitation of the positioning groove 17 and the positioning block 18, the threaded sleeve 15 drives the movable cavity 16 to move, which in turn moves the positioning plate 5. The positioning plate 5 clamps and fixes the tool. At this time, one side of the tool can be ground. After grinding, the first servo motor 7 is started to drive the worm 8 to rotate. Since the worm 8 and the worm wheel 9 are meshed, the worm wheel 9 is driven to rotate. Under the limitation of the limiting groove 10, the limiting block 11 and the connecting rod 12, the worm wheel 9 drives the clamping table 3 to rotate, which in turn drives the tool to flip, so that the other side of the tool can be ground. Due to the self-locking characteristic between the worm 8 and the worm wheel 9, the tool is more stable during grinding. After grinding, the second servo motor 13 is started to reverse, which drives the positioning plate 5 to move upward. At this time, the tool can be removed.
[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A workpiece clamping table for sharpening a tool, comprising a base plate (1), characterized in that: The side plate (2) is provided with a rotating mechanism, the inner side of the side plate (2) is provided with a clamping table (3), the clamping table (3) is provided with a clamping groove (4) in the inside, the clamping groove (4) is provided with a positioning plate (5) in the inside, the top of the clamping table (3) is provided with a mounting cavity (6), and the mounting cavity (6) is provided with a moving mechanism in the inside. The rotating mechanism comprises a first servo motor (7), a worm (8), a worm wheel (9) and a limiting structure, the first servo motor (7) is installed at the top of the side plate (2), the worm (8) is installed in the inside of the side plate (2), one end of the worm (8) is connected with the output end of the first servo motor (7), the worm (8) is meshed with the worm wheel (9) on one side, and one end of the worm wheel (9) is connected with one side of the clamping table (3).
2. The workpiece clamp table for sharpening a knife as defined in claim 1, wherein: The limiting structure comprises a limiting groove (10), a limiting block (11) and a connecting rod (12), the limiting groove (10) is formed in the inside of the side plate (2), the limiting block (11) is arranged in the inside of the limiting groove (10), one end of the limiting block (11) is provided with the connecting rod (12), and one end of the connecting rod (12) is connected with one side of the clamping table (3).
3. A workpiece clamp table for sharpening a tool as defined in claim 2, wherein: The limiting block (11) is provided with two limiting blocks (11) in the inside of the limiting groove (10), and the two limiting blocks (11) are symmetrically distributed about the central axis of the limiting groove (10).
4. The workpiece clamp table for sharpening a knife of claim 1, wherein: The moving mechanism comprises a second servo motor (13), a threaded rod (14), a threaded sleeve (15), a movable cavity (16) and a positioning structure, the second servo motor (13) is installed at the top of the mounting cavity (6), the threaded rod (14) is installed in the inside of the mounting cavity (6), one end of the threaded rod (14) is connected with the output end of the second servo motor (13), the outer side wall of the threaded rod (14) is provided with the threaded sleeve (15), the outer side wall of the threaded sleeve (15) is fixedly installed with the movable cavity (16), the bottom end of the movable cavity (16) extends to the inner side of the clamping table (3), and the bottom end of the movable cavity (16) is connected with the top end of the positioning plate (5).
5. A workpiece clamp table for sharpening a tool as defined in claim 4, wherein: The positioning structure comprises a positioning groove (17) and a positioning block (18), the positioning groove (17) is formed on both sides in the inside of the mounting cavity (6), the positioning groove (17) is provided with the positioning block (18) in the inside, and one end of the positioning block (18) is connected with the outer side of the movable cavity (16).
6. A workpiece clamp table for sharpening a tool as defined in claim 5, wherein: The cross section of the positioning groove (17) is larger than that of the positioning block (18), and the positioning groove (17) and the positioning block (18) form a sliding structure.