Turning sealing PCD cutter structure
By designing turning and sealing tools made of PCD materials, using V-shaped cutting heads and turning edges with specific structures, the problem of frequent tool replacement is solved, the effect of efficient processing of V-shaped grooves is achieved, and the processing efficiency and tool durability is improved.
Patent Information
- Application Number
- CN202421916912.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-08
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-08-08
AI Technical Summary
In turning processing, frequent tool replacement seriously affects processing efficiency, especially when processing the shape structure and V-grooves of V-spring plugs, existing tools cannot complete the task efficiently.
A turning seal tool made of PCD material has a V-shaped cutting head and a turning edge of a specific structure, including a first cutting edge, a second cutting edge and a third cutting edge sequentially connected, forming a V-shaped cutting edge profile, combined with polycrystalline diamond material to improve durability, and optimize chip discharge by setting chip drainage grooves and avoidance grooves to achieve rapid tool replacement.
It improves processing efficiency, reduces tool replacement frequency, ensures processing continuity and accuracy, and is especially suitable for the processing of V-shaped grooves, extending the service life of the tool.
Smart Images
Figure CN223083838U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lathe tool design, in particular to a turning sealed PCD tool structure. Background Art
[0002] Turning mainly involves the development and application of machining technology. Turning, also known as lathe machining, is a part of machining. It mainly cuts a rotating workpiece with a turning tool to change the shape and size of the workpiece. This machining method is not only applicable to workpieces with rotary surfaces such as shafts, discs, and sleeves, but also widely used in machinery manufacturing and repair factories. The technical background of turning reflects the requirements of modern high-tech development. Among them, ultra-precision machining technology, as an important part of modern manufacturing technology, the accuracy, surface roughness, machining size range, and geometric shape that can be achieved have become one of the important indicators to measure a country's manufacturing technology level.
[0003] During the machining process of turning for special structures, tools usually need to be frequently replaced. For example, when machining a formed V-shaped spring lip seal plug, different tools are usually required for turning when machining the outer shape structure and V-shaped groove of the lip seal plug, which seriously affects the machining efficiency. There is an urgent need in society for a special groove tool for V-shaped spring lip seal plugs. Summary of the Utility Model
[0004] In order to overcome the disadvantages and deficiencies existing in the prior art, the purpose of the utility model is to provide a turning sealed PCD tool structure. By using a PCD and V-shaped tool head, the tool realizes the special machining of an external turning part with a sealing groove, avoids frequent tool replacement, and effectively improves the machining efficiency.
[0005] To achieve the above purpose, the utility model includes a turning tool shank, a turning tool handle extending from one end of the turning tool shank, and a turning tool head arranged at the end of the turning tool shank far from the turning tool handle; the turning tool head is provided with a turning tool face, a turning tool side face, and a turning tool back face. The turning tool face and the turning tool back face are respectively located on two sides of the turning tool head far from each other, the turning tool side face is located between the turning tool face and the turning tool back face, and the turning tool face and the turning tool side face are connected to form a turning tool edge, and the turning tool edge is used to break open the external turning part. By setting the turning tool face, the turning tool side face, and the turning tool back face, with the turning tool side face located between the turning tool face and the turning tool back face, and the turning tool face and the turning tool side face forming the turning tool edge, the turning tool edge is beneficial to breaking open the surface of the external turning part.
[0006] Furthermore, the turning cutting edge includes a first cutting edge, a second cutting edge, and a third cutting edge that are connected in sequence. The first cutting edge and the third cutting edge are located on both sides of the second cutting edge. The first cutting edge and the third cutting edge are linear, and the second cutting edge is arc-shaped. By setting the first cutting edge, the second cutting edge, and the third cutting edge that are connected in sequence, a V-shaped cutting edge profile is formed, which is conducive to turning a V-shaped groove.
[0007] Furthermore, the turning tool face is V-shaped, and the width of the turning tool face is greater than the width of the turning back face. By setting the turning tool face to be V-shaped and the width of the turning tool face to be greater than the width of the turning back face, it is conducive to highlighting the turning cutting edge and ensuring that during the turning process of the turning tool head, the turning cutting edge first contacts the surface of the external turning part, thereby achieving better turning.
[0008] Furthermore, the turning tool shank is provided with two notches located on both sides of the turning tool shank, such that the turning tool shank forms a pointed part at the end of the shank and a first chip discharge groove pointed part on both sides of the turning tool shank, which is a tapered structure with the side walls sloping downwards and gradually narrowing. The first chip discharge groove is used to discharge external turning chips. By providing notches on both sides of the turning tool shank to form the first chip discharge grooves on both sides, it is conducive to the external chips being discharged through the first chip discharge grooves during tool turning.
[0009] Furthermore, the pointed part is provided with a receiving step, which is a stepped structure recessed from the outer surface of the pointed part, and the turning tool head is located on the receiving step. By setting the receiving step, it is conducive to fixedly installing the turning tool head on the receiving step.
[0010] Furthermore, the turning tool shank is provided with an avoidance groove located below the turning tool shank, and the avoidance groove is used to avoid external turning parts. By setting the avoidance groove, it is conducive to preventing interference between the lower part of the turning tool shank and the external turning part.
[0011] Furthermore, the turning side includes a first cutting surface, a second cutting surface, and a third cutting surface that are connected in sequence. The second cutting surface is located between the first cutting surface and the third cutting surface, and the second cutting surface is an inclined arc surface.
[0012] Furthermore, the turning tool face intersects the first turning surface at an angle α1, intersects the second turning surface at an angle α2, and intersects the third cutting surface at an angle α3. The angles α1, α2, and α3 are all acute angles. By setting α1, α2, and α3 to be all acute angles, the corresponding turning cutting edge becomes a sharp edge, which is conducive to better turning of the external turning part.
[0013] Furthermore, the included angle between the first cutting edge and the third cutting edge is 25° to 40°. By setting the included angle value between the first cutting edge and the third cutting edge to be between 25° and 40°, and the included angles between the first cutting edge and the second cutting edge and the external turning part plane to be 70° to 77.5°, it is conducive to the first cutting edge and the second cutting edge turning to form a V-shaped groove.
[0014] Furthermore, the material of the turning tool tip is polycrystalline diamond. By using a turning tool made of polycrystalline diamond, it is beneficial to improve the durability of the turning tool tip.
[0015] Advantages of the present utility model: A turning and sealing PCD tool structure of the present utility model includes a turning tool face, a turning side face provided on the turning tool tip, and a turning tool edge formed by the connection of the turning tool face and the turning side face. The turning tool edge is used to break the surface of the external turning part. Since the turning tool face is V-shaped and the turning tool edges are sequentially connected to form a V shape, the present utility model has the advantage of being convenient for turning V-shaped grooves and can be used as a special groove tool for turning V-shaped grooves. Description of the Drawings
[0016] Figure 1 is a three-dimensional state schematic diagram of the present utility model;
[0017] Figure 2 is Figure 1 the structural schematic diagram at A in
[0018] Figure 3 is a front structural schematic diagram of the present utility model;
[0019] Figure 4 is a structural schematic diagram of the turning tool bar and the turning tool handle of the present utility model;
[0020] Figure 5 is Figure 4 the structural schematic diagram at B in
[0021] Figure 6 is a structural schematic diagram of the handle mounting part in this embodiment;
[0022] Figure 7 is Figure 2 the structural schematic diagram of other embodiments of the turning tool face in
[0023] Reference numerals include:
[0024] 1. Turning tool bar; 2. Turning tool handle; 3. Turning tool tip; 4. Tip; 5. Turning tool face; 6. Turning side face; 7. Turning tool edge; 8. Turning back face; 9. Handle mounting part; 101. Relief groove; 102. First chip removal groove; 401. Step surface; 402. Kicking surface; 501. Chip breaking groove; 502. Second chip removal groove; 601. First cutting surface; 602. Second cutting surface; 603. Third cutting surface; 701. First cutting edge; 702. Second cutting edge; 703. Third cutting edge; 901. Handle limiting groove; 903. Countersunk through hole. Detailed Description of the Embodiment
[0025] For the convenience of understanding by those skilled in the art, the present utility model will be further described below in conjunction with embodiments and the accompanying drawings. The content mentioned in the embodiments does not limit the present utility model.
[0026] Please refer to Figures 1 to 7 As shown, a turning seal PCD tool structure of the present utility model includes a turning tool shank 1, a turning tool holder 2 formed by extending one end of the turning tool shank 1, and a turning tool tip 3 provided at one end of the turning tool shank 1 away from the turning tool holder 2; the turning tool tip 3 is provided with a turning tool face 5, a turning side face 6, and a turning back face 8. The turning tool face 5 and the turning back face 8 are respectively located on two sides of the turning tool tip 3 away from each other, the turning side face 6 is located between the turning tool face 5 and the turning back face 8, and the turning tool face 5 and the turning side face 6 are connected to form a turning cutting edge 7, and the turning cutting edge 7 is used to break the surface of the external turning part.
[0027] In this embodiment, the turning tool tip 3 may also be provided with a chip breaking groove 501 provided in the concave turning tool face 5. The chip breaking groove 501 is located on the turning tool face 5 and is arranged in a V-shaped structure along the turning cutting edge 7. The chip breaking groove 501 is provided with a plurality of inclined groove walls, and the vertices of the plurality of inclined surfaces are all arranged on a curve. The distance between the chip breaking groove 501 and the turning cutting edge 7 is 0.1 mm - 0.15 mm. During actual production and manufacturing, the chip breaking groove 501 is formed by laser cutting. During actual use, the turning cutting edge 7 turns the external turning part to generate chips, the chips enter the chip breaking groove 501, and the chips come into contact with the inclined surface structure of the groove wall and deform, so that the toughness of the chips is reduced, and the chips thus break.
[0028] The turning tool face 5 may also be provided with a second chip removal groove 502 recessed on the surface of the turning face. The side face of the second chip removal groove 502 is an inclined surface inclined relative to the bottom surface. The distance between the bottom surface of the second chip removal groove 502 and the turning tool face 5 is 0.2 mm. During actual use, part of the chips generated by the turning cutting edge 7 breaking the external turning part flow into the second chip removal groove 502, and part of the chips are then guided out of the second chip removal groove 502 through the inclined surface.
[0029] The utility model further includes a tool holder mounting member 9. The tool holder mounting member 9 is provided with a tool holder limiting groove 901 formed by a recessed surface. The tool holder limiting groove 901 accommodates the turning tool holder 2. The tool holder mounting member 9 is further provided with a countersunk through hole 903 which communicates with the tool holder limiting groove 901. The countersunk through hole 903 is located on one side of the tool holder limiting groove 901. The countersunk through hole 903 cooperates with an external screw, and the countersunk through hole 903 accommodates an external screw for restricting the movement of the tool holder limiting groove 901. In this embodiment, the distance between the opposite sides of the tool holder limiting groove 901 is slightly larger than the thickness of the turning tool holder 2. By providing the countersunk through hole 903, the external screw fixedly installed in the countersunk through hole 903 abuts against the turning tool holder 2, so as to fix the turning tool holder 2. By providing the tool holder limiting groove 901 and the countersunk through hole 903, the turning tool can be more conveniently installed / dismounted from the tool holder mounting member 9. In addition, the tool holder mounting member 9 is further provided with a plurality of tool holder limiting grooves 901. The plurality of tool holder limiting grooves 901 are distributed on the side surface of the tool holder mounting member 9 having a cylindrical structure. Each tool holder limiting groove 901 can install different turning tools. During production and manufacturing, when it is necessary to replace the tool for subsequent processing, the tool holder mounting member 9 can be rotated to adjust the position of the corresponding tool to complete the tool replacement. By providing a plurality of tool holder limiting grooves 901, the rapid replacement of the turning tool can be realized, so that the processing procedure is continuous without pause, effectively improving the production efficiency.
[0030] Specifically, the turning cutting edge 7 includes a first cutting edge 701, a second cutting edge 702 and a third cutting edge 703 which are connected in sequence. The first cutting edge 701 and the third cutting edge 703 are located on both sides of the second cutting edge 702. The first cutting edge 701 and the third cutting edge 703 are linear, and the second cutting edge 702 is arc-shaped. In this embodiment, the first cutting edge 701 and the third cutting edge 703 are used for machining the side wall of an external turning part, and the second cutting edge 702 is used for deep machining of the external turning part. For example, when machining a V-spring lip seal, the lathe drives the bar-shaped raw material to rotate, and the lathe drives the turning tool transversely and longitudinally. During production and manufacturing, the production technician first confirms the position base point of the V-groove, pushes the turning tool transversely, so that the second cutting edge 702 cuts out the depth of the V-groove. At the same time, the first cutting edge 701 and the third cutting edge 703 also cut out the side wall structure of the V-groove. If the side wall structure of the V-groove is not the target structure at this time, the turning tool can be driven to move back and forth longitudinally until the V-groove with the target size structure is cut out. By providing the first cutting edge 701, the second cutting edge 702 and the third cutting edge 703 connected in sequence to form a V-shaped cutting edge profile, it is beneficial to cut out a V-groove.
[0031] Specifically, the turning tool face 5 is V-shaped, and the width of the turning tool face 5 is larger than the width of the turning back face 8. In this embodiment, the structure in which the second turning face inclines downward can also be used for chip removal. During actual use, part of the chips generated by the turning tool head 3 when turning an external turning part are discharged through the second cutting face 602.
[0032] Specifically, the turning tool shank 1 is provided with two notches on both sides of the turning tool shank 1, so that the turning tool shank 1 forms a tip 4 at the end of the tool shank and a first chip discharge groove 102 on both sides of the turning tool shank 1. The first chip discharge groove 102 is used to discharge external turning chips. In this embodiment, the turning tool shank 1 and the turning tool holder 2 are of an integrally formed structure, and the tip 4 is a conical structure with a side wall that slopes downward and gradually narrows. During production and manufacturing, it can be formed by laser cutting or CNC machining. During actual use, when the turning tool head 3 turns an external turning part, most of the generated chips are discharged through the first chip discharge grooves 102 on both sides of the turning tool shank 1.
[0033] Specifically, the tip 4 is provided with a receiving step, and the receiving step is a stepped structure recessed from the outer surface of the tip 4. The turning tool head 3 is located on the receiving step. In this embodiment, the bottom surface of the receiving step is horizontally provided with a step surface 401 and a kicking surface 402 connected at an angle to the step surface 401. The turning side surface 6 further includes a fourth cutting surface. The step surface 401 is laser welded to the turning back surface 8, and the kicking surface 402 is laser welded to the fourth cutting surface. The turning tool surface 5 is coplanar with the upper surfaces of the turning tool shank 1 and the turning tool holder 2. By providing the receiving step, it is beneficial to fixedly arrange the turning tool head 3 on the receiving step.
[0034] Specifically, the turning tool shank 1 is provided with an avoidance groove 101, and the avoidance groove 101 is located below the turning tool shank 1. The avoidance groove 101 is used to avoid external turning parts. In this embodiment, the avoidance groove 101 penetrates through the turning tool shank 1, and the height of the turning tool shank 1 is not greater than the height of the tip 4 where the turning tool head 3 is installed. During actual use, when a production technician needs to machine a deep groove, the tip 4 penetrates the surface of the external turning part. If the turning tool shank 1 is not provided with the avoidance groove 101 or the height of the turning tool shank 1 is greater than the height of the tip 4, during machining, when the tip 4 penetrates the surface of the external turning part, the turning tool shank 1 will interfere with the external turning part.
[0035] Specifically, the turning side surface 6 includes a first cutting surface 601, a second cutting surface 602, and a third cutting surface 603 that are sequentially connected. The second cutting surface 602 is located between the first cutting surface 601 and the third cutting surface 603, and the second cutting surface 602 is an inclined arc surface. In this embodiment, a third chip discharge groove is provided on the second cutting surface 602, and the third chip discharge groove is located between the second cutting surface 602 and the turning back surface 8. During actual use, when the turning tool head 3 turns an external turning part, some of the generated chips are discharged through the third chip discharge groove, preventing the chips from accumulating in the machining groove due to untimely discharge and thus affecting the machining accuracy.
[0036] Specifically, the turning tool face 5 intersects with the first turning face at an angle α1, intersects with the second turning face at an angle α2, and intersects with the third turning face 603 at an angle α3. The angles α1, α2, and α3 are all acute angles. By setting α1, α2, and α3 as acute angles, the corresponding turning tool edge 7 becomes a sharp edge, which is beneficial for better turning of the external turning part. In this embodiment, the structure of the second turning face sloping downward can also be used for chip removal. During actual use, part of the chips generated by the turning tool head 33 when turning the external turning part are discharged through the second turning face 602. The values of the angles α1, α2, and α3 are between 60° and 70°. At this time, the strength and sharpness of the turning tool edge 7 are better, and the efficiency of the turning tool edge 7 for turning the external turning part is higher.
[0037] Specifically, the included angle between the first cutting edge 701 and the third cutting edge 703 is 25° to 40°. In this embodiment, when the included angle between the first cutting edge 701 and the third cutting edge 703 is between 25° and 40°, the turning tool has a better effect during machining depth.
[0038] Specifically, the material of the turning tool head 3 is polycrystalline diamond. In this embodiment, the turning tool head 3 has a diamond alloy blade with a size of 1.7 mm in length, 1.6 mm in width, and 1.2 mm in height. Using the polycrystalline diamond alloy blade makes the turning tool have a more significant turning effect and a longer service life.
[0039] The above content is only the preferred embodiment of the present utility model. For those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation manner and application scope. The content of this specification should not be construed as a limitation to the present utility model.
Claims
1. A turning sealed PCD tool structure, comprising a turning tool shank (1), a turning tool handle (2) formed by extending one end of the turning tool shank (1), and a turning tool tip (3) arranged at one end of the turning tool shank (1) far from the turning tool handle (2); characterized in that: The turning tool tip (3) is provided with a turning tool face (5), a turning side face (6) and a turning back face (8). The turning tool face (5) and the turning back face (8) are respectively located on two sides of the turning tool tip (3) away from each other. The turning side face (6) is located between the turning tool face (5) and the turning back face (8). The turning tool face (5) and the turning side face (6) are connected to form a turning tool edge (7), and the turning tool edge (7) is used to break the external turning part.
2. The structure of a turning sealed PCD tool according to claim 1, wherein: The turning tool edge (7) includes a first cutting edge (701), a second cutting edge (702) and a third cutting edge (703) connected in sequence. The first cutting edge (701) and the third cutting edge (703) are located on both sides of the second cutting edge (702). The first cutting edge (701) and the third cutting edge (703) are linear, and the second cutting edge (702) is arc-shaped.
3. The structure of a turning sealed PCD tool according to claim 1, characterized in that: The turning tool face (5) is V-shaped, and the width of the turning tool face (5) is greater than the width of the turning back face (8).
4. A turning sealed PCD tool structure according to claim 1, characterized in that: The turning tool shank (1) is provided with two notches, which are respectively located on both sides of the turning tool shank (1), so that the turning tool shank (1) forms a tip (4) at the end of the shank and a first chip groove (102) on both sides of the turning tool shank (1). The tip (4) is a conical structure with the side wall inclined downward and gradually narrowing, and the first chip groove (102) is used to discharge the external turning chips.
5. A turning sealed PCD tool structure according to claim 4, characterized in that: The tip (4) is provided with a receiving step, and the receiving step is a stepped structure recessed from the outer surface of the tip (4). The turning tool tip (3) is located on the receiving step.
6. The structure of a turning sealed PCD tool according to claim 1, characterized in that: The turning tool shank (1) is provided with an avoidance groove (101), and the avoidance groove (101) is located below the turning tool shank (1). The avoidance groove (101) is used to avoid the external turning part.
7. A turning sealed PCD tool structure according to claim 1, characterized in that: The turning side face includes a first cutting face, a second cutting face and a third cutting face connected in sequence. The second cutting face is located between the first cutting face and the third cutting face, and the second cutting face is an inclined arc face.
8. The structure of a turning sealed PCD tool according to claim 7, characterized in that: The turning tool face intersects with the first turning face at an angle α1, intersects with the second turning face at an angle α2, and intersects with the third cutting face at an angle α3. The angles α1, α2 and α3 are all acute angles.
9. The structure of a turning sealed PCD tool according to claim 3, characterized in that: The included angle between the first cutting edge (701) and the third cutting edge (703) is 25° to 40°.
10. The structure of a turning sealed PCD tool according to claim 1, characterized in that: The material of the turning tool tip (3) is polycrystalline diamond.