Hydraulic clamp and tool sharpener thereof

Abstract

The utility model relates to the technical field of numerical control machinery, and discloses a hydraulic clamp and a tool sharpener thereof. The hydraulic clamp comprises a base station, and the top of the front wall surface of the base station is fixedly connected with a fixed block; the hydraulic cylinder is fixedly connected to the top of the rear wall face of the base table, and the extending end of the hydraulic cylinder can penetrate through the space between the symmetrical partition blocks; the clamping structure is arranged at the top of the base table and used for protecting a clamped cutter, the clamping structure comprises a push plate, a movable clamping block and a magnetic plate, the push plate is fixedly connected to the extending end of the hydraulic cylinder, the movable clamping block is fixedly connected to the front wall face of the push plate, the magnetic plate is fixedly connected to the rear wall face of the fixed block, and the movable clamping block and the magnetic plate are aligned to each other; by arranging the clamping structure, the blade can be fixed through mutual cooperation of the three symmetrical movable clamping blocks and the three symmetrical fixed clamping blocks, so that the loss of the blade during clamping is reduced, the blade can be conveniently and vertically placed at the bottom of the base table through a magnetic plate, and the replacement cost of the movable clamping blocks and the magnetic plate during abrasion is low.

Description

Technical Field

[0001] This utility model belongs to the field of CNC machinery, specifically, it relates to a hydraulic clamp and its grinding machine. Background Technology

[0002] A knife sharpening machine is a device used to repair cutting tools. Its working principle is mainly to grind the cutting edge of the tool by rotating the grinding head, thereby making its cutting edge sharp again.

[0003] Currently used grinding machine fixtures clamp and fix the blade by pressing the two sides of the blade together. While this method can fix the blade, the high pressure of the hydraulic pressure will bring high pressure to the blade, causing it to deform and be damaged. In addition, the replacement cost of the fixture after it wears out is relatively high.

[0004] In view of this, this utility model is proposed. Utility Model Content

[0005] To solve the technical problems existing in conventional fixtures, the basic concept of the technical solution adopted by this utility model is as follows:

[0006] A hydraulic clamp, comprising:

[0007] The base has rectangular blocks that are symmetrically fixed to the top middle section of the base. A fixed block, also rectangular, is fixed to the top of the front wall of the base. The tops of the fixed block and the partition block are flush.

[0008] The hydraulic cylinder is fixedly connected to the top of the rear wall of the base, and the extended end of the hydraulic cylinder can pass through the symmetrical partitions.

[0009] The clamping structure is located on the top of the base to protect the clamped tool. The clamping structure includes a push plate, a movable clamping block, and a magnetic plate. The push plate is fixedly connected to the extension end of the hydraulic cylinder, the movable clamping block is fixedly connected to the front wall of the push plate, and the magnetic plate is fixedly connected to the rear wall of the fixed block. The movable clamping block and the magnetic plate are aligned with each other.

[0010] In a preferred embodiment of this utility model, the push plate is located between the partition block and the fixed block, and the bottom of the push plate can contact the top of the base. The movable clamping block and the fixed clamping block are cylinders of the same size. Three movable clamping blocks are evenly arranged on the wall of the push plate, and the three movable clamping blocks are arranged in an inverted triangle on the wall of the push plate. The number and position of the fixed clamping blocks are the same as those of the movable clamping blocks.

[0011] In a preferred embodiment of the present invention, the clamping structure further includes a magnetic plate and an inclined block. The magnetic plate is fixedly connected to the top of the base, and the inclined block is fixedly connected to the rear wall of the solid block. The inclined block is symmetrically arranged on the wall of the solid block.

[0012] In a preferred embodiment of the present invention, a rectangular groove adapted to the size of a magnetic plate is provided at the bottom of the rear wall of the solid block on the top of the base. The magnetic plate is a rectangular block with magnetism and is located in the rectangular groove at the top of the base. A symmetrical inclined block is located at the top of a symmetrical clamping block above the wall of the solid block. The inclined block is a right-angled triangular block.

[0013] In a preferred embodiment of this utility model, the top of the push plate is provided with an extension structure, which includes a fixed frame, a fixed plate, a screw, a moving rod, and a notch. The fixed frame is fixedly connected to the top of the push plate, and a rectangular slot is opened on the top of the push plate. The fixed frame is located in the rectangular slot on the top of the push plate, and the fixed plate is fixedly connected to the rectangular slot on the top of the push plate. The screw is rotatably connected to the wall of the fixed frame, and the moving rod is threadedly connected to the wall of the screw. The notch is opened on the top of the rear wall of the fixed block.

[0014] In a preferred embodiment of this utility model, the fixed frame and the moving rod are U-shaped frames, the outer wall surface of the moving rod can fit against the inner wall surface of the fixed frame, the end of the screw can also be rotatably connected to the wall surface of the fixed plate, the screw can pass through the wall surface of the moving rod and be threadedly connected to the moving rod, the moving rod and the notch are located on the same horizontal plane, and the notch is a rectangular groove.

[0015] A knife sharpening machine includes a machine body and a hydraulic clamp as described in any one of the above.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. By setting up a clamping structure, the blade can be fixed by three symmetrical movable clamping blocks and fixed clamping blocks working together, thereby reducing the wear of the blade during clamping. In addition, the magnetic plate can make it easy to place the blade vertically at the bottom of the base, and the replacement cost of the movable clamping blocks and magnetic plate when they wear out is also low.

[0018] 2. In summary, by setting up an extension structure, small-sized blades can be stably fixed above the base, thereby effectively improving the applicability of the device.

[0019] 3. By setting up hydraulic clamps, the damage to the blades during grinding can be reduced, and the grinding machine can also grind small blades.

[0020] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0021] In the attached diagram:

[0022] Figure 1 This is a perspective view of the present utility model;

[0023] Figure 2 This is a rear view of the present invention;

[0024] Figure 3 This is a side view of the present invention;

[0025] Figure 4 This is an exploded view of the push plate and base of this utility model;

[0026] Figure 5 This is an exploded view of the top structure of the push plate of this utility model.

[0027] In the diagram: 20, base; 21, partition block; 22, fixed block; 23, hydraulic cylinder; 30, push plate; 31, movable clamping block; 32, magnetic plate; 33, fixed clamping block; 34, inclined block; 40, fixed frame; 41, fixed plate; 42, screw; 43, moving rod; 44, notched groove. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0029] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a hydraulic clamp includes: a base 20, with a partition block 21 symmetrically fixedly connected to the middle section of the top of the base 20, the partition block 21 being rectangular, and a fixed block 22 fixedly connected to the top of the front wall of the base 20, the fixed block 22 being rectangular, and the tops of the fixed block 22 and the partition block 21 being flush.

[0030] Hydraulic cylinder 23 is fixedly connected to the top of the rear wall of base 20. The extension end of hydraulic cylinder 23 can pass through the symmetrical partitions 21. Hydraulic cylinder 23 is electrically connected to the corresponding power source. This is existing technology and will not be described in detail here.

[0031] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the clamping structure is set on the top of the base 20 to protect the clamped tool. The clamping structure includes a push plate 30, a movable clamping block 31, and a magnetic plate 32. The push plate 30 is fixedly connected to the extension end of the hydraulic cylinder 23, the movable clamping block 31 is fixedly connected to the front wall of the push plate 30, and the magnetic plate 32 is fixedly connected to the rear wall of the fixed block 22. The movable clamping block 31 and the magnetic plate 32 are aligned with each other.

[0032] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the push plate 30 is located between the partition block 21 and the fixed block 22. The bottom of the push plate 30 can contact the top of the base 20. The movable clamping block 31 and the fixed clamping block 33 are cylinders of the same size. Three movable clamping blocks 31 are evenly arranged on the wall of the push plate 30, and the three movable clamping blocks 31 are arranged in an inverted triangle on the wall of the push plate 30. The number and position of the fixed clamping blocks 33 are the same as those of the movable clamping blocks 31. The clamping structure also includes a magnetic plate 32 and an inclined block 34. The magnetic plate 32 is fixedly connected to the base. At the top of the base 20, the inclined block 34 is fixedly connected to the rear wall of the solid block 22. The inclined block 34 is symmetrically arranged on the wall of the solid block 22. A rectangular groove adapted to the size of the magnetic plate 32 is opened at the bottom of the rear wall of the solid block 22. The magnetic plate 32 is a rectangular block with magnetism. The magnetic plate 32 is located in the rectangular groove at the top of the base 20. The symmetrical inclined block 34 is located at the top of the symmetrical clamping block 33 above the wall of the solid block 22. The inclined block 34 is a right-angled triangular block.

[0033] In practical use, the blade to be fixed is placed with its cutting edge facing upwards and its bottom placed on the top of the magnetic plate 32 along the inclined surface of the inclined block 34. At this time, the magnetic plate 32 will magnetically attract it. Then, the power of the hydraulic cylinder 23 is turned on. When the power is turned on, the hydraulic cylinder 23 can push the push plate 30 to move towards the fixed block 22. As the push plate 30 moves, it can drive the movable clamping block 31 to move synchronously. When the movable clamping block 31 contacts the blade, it can cooperate with the fixed clamping block 33 to fix the blade on the top of the base 20.

[0034] In summary, by setting up a clamping structure, the blade can be fixed by the cooperation of three symmetrical movable clamping blocks 31 and fixed clamping blocks 33, thereby reducing the wear of the blade during clamping. Furthermore, the magnetic plate 32 makes it easy for the blade to be placed vertically at the bottom of the base 20, and the replacement cost of the movable clamping blocks 31 and magnetic plate 32 when worn is also low.

[0035] like Figure 3 and Figure 5 As shown, the top of the push plate 30 is provided with an extension structure, which includes a frame 40, a plate 41, a screw 42, a moving rod 43, and a notch 44. The frame 40 is fixedly connected to the top of the push plate 30. The top of the push plate 30 has a rectangular slot, and the frame 40 is located in the rectangular slot at the top of the push plate 30. The plate 41 is fixedly connected to the rectangular slot at the top of the push plate 30. The screw 42 is rotatably connected to the wall of the frame 40. The moving rod 43... 3. The screw is threaded to the wall of the screw 42. The notch 44 is opened on the top of the rear wall of the fixed block 22. The fixed frame 40 and the moving rod 43 are U-shaped frames. The outer wall of the moving rod 43 can fit with the inner wall of the fixed frame 40. The end of the screw 42 can also be rotatably connected to the wall of the fixed plate 41. The screw 42 can pass through the wall of the moving rod 43 and be threaded to the moving rod 43. The moving rod 43 and the notch 44 are located on the same horizontal plane. The notch 44 is a rectangular groove.

[0036] In practical use, when it is necessary to clamp a small blade, place the bottom of the blade to be fixed in the notch 44, and then rotate the screw 42 after the movable clamping block 31 and the fixed clamping block 33 are in contact. As the screw 42 rotates, it can drive the moving rod 43 to move towards the blade. At this time, the moving rod 43, together with the notch 44, can fix the small blade.

[0037] In summary, by setting up an extension structure, small-sized blades can be stably fixed above the base 20, thereby effectively improving the applicability of the device.

[0038] A knife sharpening machine, not shown in the figure, includes a machine body and a hydraulic clamp as described above;

[0039] By setting up hydraulic clamps, damage to the blades during grinding can be reduced, and the grinding machine can also grind small blades.

[0040] Working principle: Place the blade to be fixed with the cutting edge facing upwards along the inclined surface of the inclined block 34 so that its bottom is placed on top of the magnetic plate 32. At this time, the magnetic plate 32 will magnetically attract it. Then, turn on the power of the hydraulic cylinder 23. When the power is turned on, the hydraulic cylinder 23 can push the push plate 30 to move towards the fixed block 22. As the push plate 30 moves, it can drive the movable clamping block 31 to move synchronously. When the movable clamping block 31 contacts the blade, it can cooperate with the fixed clamping block 33 to fix the blade on the top of the base 20. After the blade is polished, control the extension end of the hydraulic cylinder 23 to retract, thereby driving the push plate 30 to move backwards. Then, the polished blade can be removed from the top of the base 20.

[0041] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A hydraulic clamp, characterized in that, include: A base (20) is provided. A partition block (21) is symmetrically fixedly connected to the middle section of the top of the base (20). The partition block (21) is rectangular. A fixed block (22) is fixedly connected to the top of the front wall of the base (20). The fixed block (22) is rectangular. The tops of the fixed block (22) and the partition block (21) are flush. Hydraulic cylinder (23) is fixedly connected to the top of the rear wall of the base (20), and the extension end of the hydraulic cylinder (23) can pass through the symmetrical partitions (21). The clamping structure is set on the top of the base (20) to protect the clamped tool. The clamping structure includes: a push plate (30), a movable clamping block (31) and a magnetic plate (32). The push plate (30) is fixedly connected to the extension end of the hydraulic cylinder (23). The movable clamping block (31) is fixedly connected to the front wall of the push plate (30). The magnetic plate (32) is fixedly connected to the rear wall of the fixed block (22). The movable clamping block (31) and the magnetic plate (32) are aligned with each other.

2. A hydraulic clamp according to claim 1, characterized in that, The push plate (30) is located between the partition block (21) and the fixed block (22). The bottom of the push plate (30) can contact the top of the base (20). The movable clamping block (31) and the fixed clamping block (33) are cylinders of the same size. Three movable clamping blocks (31) are evenly arranged on the wall of the push plate (30). The three movable clamping blocks (31) are arranged in an inverted triangle on the wall of the push plate (30). The number and position of the fixed clamping blocks (33) are the same as those of the movable clamping blocks (31).

3. A hydraulic clamp according to claim 1, characterized in that, The clamping structure also includes a magnetic plate (32) and an inclined block (34). The magnetic plate (32) is fixedly connected to the top of the base (20), and the inclined block (34) is fixedly connected to the rear wall of the solid block (22). The inclined block (34) is symmetrically arranged on the wall of the solid block (22).

4. A hydraulic clamp according to claim 3, characterized in that, The base (20) has a rectangular groove at the bottom of the rear wall of the solid block (22) that is adapted to the size of the magnetic plate (32). The magnetic plate (32) is a rectangular block with magnetism. The magnetic plate (32) is located in the rectangular groove at the top of the base (20). The symmetrical inclined block (34) is located at the top of the symmetrical clamping block (33) above the wall of the solid block (22). The inclined block (34) is a right-angled triangular block.

5. A hydraulic clamp according to claim 1, characterized in that, The top of the push plate (30) is provided with an extension structure, which includes a frame (40), a plate (41), a screw (42), a moving rod (43), and a notch (44). The frame (40) is fixedly connected to the top of the push plate (30). A rectangular slot is opened on the top of the push plate (30). The frame (40) is located in the rectangular slot on the top of the push plate (30). The plate (41) is fixedly connected to the rectangular slot on the top of the push plate (30). The screw (42) is rotatably connected to the wall of the frame (40). The moving rod (43) is threadedly connected to the wall of the screw (42). The notch (44) is opened on the top of the rear wall of the solid block (22).

6. A hydraulic clamp according to claim 5, characterized in that, The frame (40) and the moving rod (43) are U-shaped frames. The outer wall of the moving rod (43) can fit against the inner wall of the frame (40). The end of the screw (42) can also be rotatably connected to the wall of the plate (41). The screw (42) can pass through the wall of the moving rod (43) and be threadedly connected to the moving rod (43). The moving rod (43) and the notch (44) are located on the same horizontal plane. The notch (44) is a rectangular groove.

7. A knife sharpening machine, comprising a body, characterized in that, It also includes a hydraulic clamp as described in any one of claims 1-6.

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