A PCD cutter with quick-change blades

Abstract

The utility model relates to processing cutter technical field discloses a PCD cutter of quick replacement blade, including connecting block, the connecting block bottom is provided with the mounting slot, the blade is inserted in the mounting slot inner wall bottom, the mounting slot inner wall both sides are all slidingly connected with the limit slide block, the rear side limit slide block front side bottom fixedly connected with the connecting sleeve, the connecting sleeve outer wall is inserted with the blade inner wall, two limit slide blocks are close one side and are abutted with the blade front and back two sides, two limit slide blocks inner walls are connected through the limiting component to be used for adjusting the interval of two limit slide blocks, the connecting block bottom is provided with the protection groove, in the utility model, the limit slide block is made to slide through the rotation adjusting knob drive worm, quickly removes or realizes the fixation to the blade, need not to disassemble a plurality of parts, has reduced the replacement time and manpower cost, has avoided the scratch of the security hidden danger that the operation near the blade edge possibly caused simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of machining tool technology, and in particular to a PCD tool with quick-change inserts. Background Technology

[0002] PCD cutting tools are made from polycrystalline diamond (PCD) material. PCD is a composite superhard material formed by sintering diamond micropowder under high temperature and pressure. PCD cutting tools possess numerous superior properties. Their hardness can reach 8000 HV, which is 8 to 12 times that of cemented carbide, exhibiting excellent wear resistance, capable of withstanding high-intensity cutting, and extending tool life. Their thermal conductivity is as high as 700 W / mK, allowing for rapid heat transfer, reducing cutting temperature and thermal deformation. The coefficient of friction is only 0.1 to 0.3, significantly reducing cutting forces. They have a low coefficient of thermal expansion, resulting in high machining accuracy. Furthermore, they have low affinity for non-ferrous metals and non-metallic materials, making them less prone to built-up edge formation. PCD cutting tools are mainly used for machining non-ferrous metals such as aluminum alloys and copper alloys, as well as non-metallic materials such as carbon fiber composites. They can also cut high-hardness products such as cemented carbide. They are widely used in aerospace, automotive manufacturing, and electronic equipment industries, and can be manufactured into various types such as form milling cutters and form reamers. They can precisely mill complex contours, achieving high-precision machining, improving machining efficiency and quality, and reducing production costs.

[0003] Existing cutting tools require disassembling multiple components before removing and replacing the blade, a cumbersome and time-consuming process. Furthermore, the replacement process can pose safety hazards; for example, when replacing a pedicure knife, the hand must be gripped near the blade and pulled forcefully, which can easily result in hand injuries. Additionally, the blades lack effective protection when not in use. Exposed, the blades are easily damaged if dropped or collide with each other, affecting subsequent machining. Moreover, long-term exposure can lead to rust and dulling, reducing lifespan and consequently affecting the tool's cutting performance and machining accuracy. To address these technical problems, this application proposes a PCD cutting tool with a quick-change blade design. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a PCD cutting tool with a quick-change blade. By rotating the adjustment knob, the worm gear is driven to slide the limiting slider, which quickly releases or fixes the blade without disassembling multiple parts, reducing replacement time and labor costs. At the same time, it avoids safety hazards such as cuts that may occur when operating near the blade.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A PCD cutting tool with quick-change blades includes a connecting block. The connecting block has a mounting groove at its bottom, into which a blade is inserted. Limiting sliders are slidably connected to both the front and rear sides of the mounting groove's inner wall. A connecting sleeve is fixedly connected to the bottom front side of the rear limiting slider, with its outer wall inserted into the inner wall of the blade. The adjacent sides of the two limiting sliders abut against the front and rear sides of the blade. The inner walls of the two limiting sliders are connected by a limiting assembly to adjust the distance between them. A protective groove is formed at the bottom of the connecting block, with a connecting rod connected to its inner wall via a torsion spring. A protective block is fixedly connected to the outer wall of the connecting rod, and a protective shell is fixedly connected to the bottom of the protective block. Connecting sliders are slidably connected to both the front and rear sides of the connecting block. The left side of the outer wall of each connecting slider is connected to its top via an adjusting assembly to allow rotation of the connecting rod. A magnet is fixedly connected to the top of the protective shell.

[0007] Furthermore, the limiting component includes a bidirectional screw rotatably connected to the inner wall of the mounting groove, the outer wall of the bidirectional screw being threadedly connected to the inner wall of the limiting slider, a worm gear being fixedly connected to the outer wall of the bidirectional screw, and a worm being meshed with the top side of the outer wall of the worm gear.

[0008] Furthermore, an adjustment knob is rotatably connected to the front side of the connecting block, and anti-slip stripes are provided on the outer wall of the adjustment knob. The front end of the worm gear is fixedly connected to the rear end of the adjustment knob.

[0009] Furthermore, a sliding rod is fixedly connected to the inner wall of the mounting groove, and the outer wall of the sliding rod is slidably connected to the side of the two limiting sliders that are close to each other.

[0010] Furthermore, a fixing rod is fixedly connected to the bottom rear side of the front limiting slider, a limiting plug is fixedly connected to the inner wall of the connecting sleeve, the outer wall of the fixing rod is inserted into the inner wall of the connecting sleeve, and the inner wall of the fixing rod is inserted into the outer wall of the limiting plug.

[0011] Furthermore, the adjustment assembly includes two adjustment blocks fixedly connected to the left side of the outer wall of the connecting rod, and a pull rope is fixedly connected to the bottom of the adjustment block, with the bottom end of the pull rope fixedly connected to the top end of the connecting slider.

[0012] Furthermore, a rotating rod is rotatably connected to the inner wall of the connecting block, the outer wall of the rotating rod abuts against the outer wall of the pull rope, and an adjusting knob is fixedly connected to the front side of the connecting slider.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, the worm gear is driven by rotating the adjustment knob to make the limit slider slide, which quickly releases or achieves the fixation of the blade. There is no need to disassemble multiple parts, which reduces replacement time and labor costs, and avoids safety hazards such as cuts that may be caused by holding the blade near the blade.

[0015] 2. In this utility model, when the tool is not in use, the sliding adjustment knob can be pulled by the rope to rotate the adjustment block. The rotation of the adjustment block drives the connecting rod to rotate, thereby rotating the protective shell. The magnet on its top is attracted to the connecting block, which wraps and protects the blade, preventing the blade from falling or being damaged by collision. It also avoids the problems of rusting and dulling caused by long-term exposure, ensuring the cutting performance and machining accuracy of the tool. Attached Figure Description

[0016] Figure 1 This is a perspective view of a PCD cutting tool with a quick-change blade proposed in this utility model.

[0017] Figure 2 This is a schematic diagram of a limiting slider for a PCD cutting tool with quick-change blades proposed in this utility model.

[0018] Figure 3 This is a schematic diagram of a limiting block for a PCD cutting tool with a quick-change blade proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of the rotating rod of a PCD cutting tool with quick-change blades proposed in this utility model.

[0020] Legend:

[0021] 1. Connecting block; 2. Blade; 3. Protective shell; 4. Adjusting knob; 5. Adjusting slide knob; 6. Limiting slider; 7. Connecting sleeve; 8. Fixing rod; 9. Slide rod; 10. Double-acting screw; 11. Worm gear; 12. Worm; 13. Limiting insert; 14. Connecting rod; 15. Protective block; 16. Adjusting block; 17. Pull rope; 18. Connecting slider; 19. Rotating rod. Detailed Implementation

[0022] 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.

[0023] Reference Figures 1-3This utility model provides an embodiment of a PCD cutting tool with quick-change blades, comprising a connecting block 1, a mounting groove at the bottom of the connecting block 1, a blade 2 inserted into the bottom of the inner wall of the mounting groove, and limit sliders 6 slidably connected to both the front and rear sides of the inner wall of the mounting groove. A connecting sleeve 7 is fixedly connected to the bottom of the front side of the rear limit slider 6, and the outer wall of the connecting sleeve 7 is inserted into the inner wall of the blade 2. The adjacent sides of the two limit sliders 6 abut against the front and rear sides of the blade 2 to fix the blade 2. A bidirectional screw 10 is rotatably connected to the inner wall of the mounting groove, and the outer wall of the bidirectional screw 10 is threadedly connected to the inner wall of the limit slider 6. The rotation of the bidirectional screw 10 causes the limit slider 6 to slide. A worm gear 11 is fixedly connected to the outer wall of the bidirectional screw 10, and the top side of the outer wall of the worm gear 11 is engaged with the limit slider 6. A worm gear 12 is connected, and the rotation of the worm gear 12 meshes with the worm wheel 11, causing the worm wheel 11 to rotate. The rotation of the worm wheel 11 drives the bidirectional screw 10 to rotate. An adjustment knob 4 is rotatably connected to the front side of the connecting block 1. The outer wall of the adjustment knob 4 has anti-slip stripes. The front end of the worm gear 12 is fixedly connected to the rear end of the adjustment knob 4. Rotating the adjustment knob 4 causes the worm gear 12 to rotate. A slide rod 9 is fixedly connected to the inner wall of the mounting groove. The outer wall of the slide rod 9 is slidably connected to the side of the two limit sliders 6 that are close to each other, so that the limit sliders 6 can slide stably. A fixing rod 8 is fixedly connected to the bottom of the rear side of the front limit slider 6. A limit plug 13 is fixedly connected to the inner wall of the connecting sleeve 7. The outer wall of the fixing rod 8 is inserted into the inner wall of the connecting sleeve 7, and the inner wall of the fixing rod 8 is inserted into the outer wall of the limit plug 13, increasing the connectivity.

[0024] Reference Figure 1 and Figure 4 The bottom of the connecting block 1 has a protective groove, and the inner wall of the protective groove is connected to the connecting rod 14 via a torsion spring. Sliding the adjusting knob 5 upwards releases the spring force, causing the connecting rod 14 to rotate. A protective block 15 is fixedly connected to the outer wall of the connecting rod 14, and a protective shell 3 is fixedly connected to the bottom of the protective block 15. Rotation of the connecting rod 14 causes the protective block 15 to rotate, which in turn causes the protective shell 3 to rotate. Connecting sliders 18 are slidably connected to both the front and rear sides of the connecting block 1. Two adjusting blocks 16 are fixedly connected to the left side of the outer wall of the connecting rod 14. Rotation of the adjusting blocks 16 causes the connecting rod 14 to rotate. The bottom of the adjusting block 16 is fixedly connected to a pull rope 17, the bottom end of which is fixedly connected to the top of the connecting slider 18. The sliding of the connecting slider 18 drives the pull rope 17 to move, thereby causing the pull rope 17 to pull the adjusting block 16 to rotate. The inner wall of the connecting block 1 is rotatably connected to a rotating rod 19, the outer wall of which abuts against the outer wall of the pull rope 17, changing the direction of movement of the pull rope 17. The front side of the connecting slider 18 is fixedly connected to an adjusting knob 5, and the top of the protective shell 3 is fixedly connected to a magnet. The magnet at the top of the protective shell 3 is attracted to the bottom of the connecting block 1 to protect the blade 2.

[0025] Working principle: When the blade 2 needs to be replaced, turn the adjustment knob 4 to rotate the worm 12. The rotation of the worm 12 meshes with the worm wheel 11, causing the worm wheel 11 to rotate. The rotation of the worm wheel 11 drives the bidirectional screw 10 to rotate, thereby causing the limit slider 6 to slide. The sliding of the two limit sliders 6 releases the fixation of the blade 2, allowing the blade 2 to be removed for replacement. During installation, align the blade 2 with the mounting slot and insert it. Rotate the adjustment knob 4 in the opposite direction to insert the connecting sleeve 7 into the blade 2. Insert the fixing rod 8 into the connecting sleeve 7, thereby causing the limit insert 13 to insert into the fixing rod 8 and fix the blade 2.

[0026] After the tool is used, slide the adjustment knob 5 downwards. The adjustment knob 5 causes the connecting slider 18 to slide downwards. The sliding of the connecting slider 18 causes the pull rope 17 to move, which in turn causes the pull rope 17 to pull the adjustment block 16 to rotate. The rotation of the adjustment block 16 causes the connecting rod 14 to rotate, which in turn causes the protective block 15 to rotate the protective shell 3. The magnet on the top of the protective shell 3 is attracted to the bottom of the connecting block 1 to protect the blade 2.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A PCD cutting tool with quick-change inserts, characterized in that, The device includes a connecting block (1), which has a mounting groove at its bottom. A blade (2) is inserted into the bottom of the inner wall of the mounting groove. Limiting sliders (6) are slidably connected to both the front and rear sides of the inner wall of the mounting groove. A connecting sleeve (7) is fixedly connected to the bottom of the front side of the rear limiting slider (6). The outer wall of the connecting sleeve (7) is inserted into the inner wall of the blade (2). The two limiting sliders (6) are close to each other and abut against the front and rear sides of the blade (2). The inner walls of the two limiting sliders (6) are connected by a limiting component for adjusting the two limiting sliders (6). The connecting block (1) has a protective groove at its bottom. The inner wall of the protective groove is connected to a connecting rod (14) by a torsion spring. The outer wall of the connecting rod (14) is fixedly connected to a protective block (15). The bottom of the protective block (15) is fixedly connected to a protective shell (3). The connecting block (1) has connecting sliders (18) slidably connected to both the front and rear sides. The left side of the outer wall of the connecting slider (18) is connected to the top of the connecting slider (18) by an adjustment component to rotate the connecting rod (14). The top of the protective shell (3) is fixedly connected to a magnet.

2. The PCD cutting tool with quick-change inserts according to claim 1, characterized in that: The limiting assembly includes a bidirectional screw (10) rotatably connected to the inner wall of the mounting groove. The outer wall of the bidirectional screw (10) is threadedly connected to the inner wall of the limiting slider (6). A worm wheel (11) is fixedly connected to the outer wall of the bidirectional screw (10), and a worm (12) is meshed with the top side of the outer wall of the worm wheel (11).

3. A PCD cutting tool with quick-change inserts according to claim 2, characterized in that: The front side of the connecting block (1) is rotatably connected to an adjustment knob (4), and the outer wall of the adjustment knob (4) is provided with anti-slip stripes. The front end of the worm gear (12) is fixedly connected to the rear end of the adjustment knob (4).

4. A PCD cutting tool with quick-change inserts according to claim 2, characterized in that: A slide rod (9) is fixedly connected to the inner wall of the mounting groove, and the outer wall of the slide rod (9) is slidably connected to the side of the two limiting sliders (6).

5. A PCD cutting tool with quick-change inserts according to claim 1, characterized in that: A fixing rod (8) is fixedly connected to the bottom rear side of the front limiting slider (6), a limiting plug (13) is fixedly connected to the inner wall of the connecting sleeve (7), the outer wall of the fixing rod (8) is inserted into the inner wall of the connecting sleeve (7), and the inner wall of the fixing rod (8) is inserted into the outer wall of the limiting plug (13).

6. A PCD cutting tool with quick-change inserts according to claim 1, characterized in that: The adjustment assembly includes two adjustment blocks (16) fixedly connected to the left side of the outer wall of the connecting rod (14). A pull rope (17) is fixedly connected to the bottom of the adjustment block (16), and the bottom end of the pull rope (17) is fixedly connected to the top end of the connecting slider (18).

7. A PCD cutting tool with quick-change inserts according to claim 6, characterized in that: The inner wall of the connecting block (1) is rotatably connected to a rotating rod (19), the outer wall of the rotating rod (19) abuts against the outer wall of the pull rope (17), and an adjusting knob (5) is fixedly connected to the front side of the connecting slider (18).

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