A connecting structure and a diamond compact cutting tool

Abstract

The utility model discloses a connecting structure and diamond polycrystal cutting tool relates to cutting tool technical field. The connecting structure includes the tool head main part, and the side surface of tool head main part is equipped with several groups of detachable cutting edges, and the tool head main part axle center position fixedly connected has the tool bar main part, and the connecting structure still includes the sleeve fixedly connected on the tool handle structure, and the tool bar main part rotatablely inserts in the sleeve, and the sleeve outside is equipped with the locking mechanism for the tool bar main part position locking. The connecting structure through setting several groups of detachable cutting edges in the side surface of tool head main part, has realized the modularization and multifunction of cutting tool, and can switch to the new or different model cutting edge through the rotation tool bar in single clamping, has reduced the downtime caused by the tool changing, the blade changing, and through rotatablely inserting the tool bar main part in the sleeve, and utilizing locking mechanism to lock, has constructed the connecting structure with quick switching function.

Description

Technical Field

[0001] This utility model relates to the field of cutting tool technology, specifically to a connecting structure and a polycrystalline diamond cutting tool. Background Technology

[0002] In the field of machining, polycrystalline diamond (PCD) tools are widely used for high-speed precision cutting of difficult-to-machine materials such as non-ferrous metals and composite materials due to their extremely high hardness and wear resistance.

[0003] Traditional PCD cutting tools mostly employ integral welded or integral indexable structures. Integral welded tools directly braze the PCD tip to the tool body; once the cutting edge wears down to the point of failure, the entire tool head becomes ineffective, resulting in high operating costs and significant material waste. While integral indexable inserts can be replaced via a clamping mechanism, their inserts are typically of a single geometry. When machining requirements change or different cutting edges need to be switched for roughing and finishing, the machine must be stopped and the entire insert manually replaced, a cumbersome operation. Furthermore, when machining long shaft-like parts, the workpiece typically rotates while the tool remains in a fixed position for cutting. If a cutting edge wears down, the operator must disassemble the entire tool for face replacement or replacement. This process is not only time-consuming but may also introduce positioning errors after reinstallation, affecting the consistency of machining accuracy. To address the shortcomings of existing technologies, this invention provides a connecting structure and a polycrystalline diamond cutting tool to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a connection structure and a polycrystalline diamond cutting tool. By setting several sets of detachable cutting edges on the side of the tool head body, the tool achieves modularity and multi-functionality. A single clamping operation allows for rapid switching to new or different types of cutting edges by rotating the tool holder, reducing downtime caused by tool and edge changes and lowering per-use costs. By rotatably inserting the tool holder body into a sleeve and locking it with a locking mechanism, a stable, reliable connection structure with rapid switching capability is constructed. This structure ensures the tool holder is firmly locked during cutting, guaranteeing machining rigidity and accuracy. When switching is needed, the lock can be quickly released, allowing the tool holder to rotate easily. Operation is simple, and operators can quickly adjust the cutting edge position without disassembling the tool.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a connection structure, including a cutter head body, wherein the side of the cutter head body is provided with a plurality of detachable cutting edges, and a cutter shank body is fixedly connected to the axial position of the cutter head body; The connection structure also includes a sleeve fixedly connected to the tool holder structure. The tool holder body is rotatably inserted into the sleeve. The outer side of the sleeve is provided with a locking mechanism for locking the position of the tool holder body. The locking mechanism allows the tool holder body to be detachably installed inside the sleeve.

[0006] Preferably, the locking mechanism includes: A sleeve is fixedly connected to the outside of the sleeve, and has a movable cavity inside; A threaded rod, threadedly connected to the sleeve; The locking block is rotatably connected to the end of the threaded rod via a bearing and slidably connected in the movable cavity of the sleeve. The locking block passes through the sleeve and fits against the outer wall of the tool holder body.

[0007] Preferably, a reinforcing block is fixedly connected to the locking block, and a reinforcing groove corresponding to the position of the reinforcing block is provided on the main body of the tool bar.

[0008] Preferably, a rotating handle is fixedly connected to the threaded rod.

[0009] Preferably, the cutter head body and the cutting edge are provided with corresponding threaded holes, and fastening bolts are threadedly connected inside the threaded holes.

[0010] Preferably, the end of the cutter bar body away from the cutter head body is provided with a thickened part, and the thickened part is located between the sleeve and the locking block to form a limit.

[0011] The second aspect of this utility model discloses a polycrystalline diamond cutting tool, which includes the aforementioned connecting structure.

[0012] The technical effects and advantages of this utility model are as follows: This connection structure, by setting several sets of detachable cutting edges on the side of the tool head body, achieves modularity and multi-functionality of the tool. A single clamping operation allows for quick switching to new or different cutting edge models by rotating the tool holder, reducing downtime caused by tool and edge changes and lowering per-use costs. By rotatably inserting the tool holder body into the sleeve and locking it with a locking mechanism, a stable, reliable connection structure with rapid switching capability is constructed. This structure ensures the tool holder is firmly locked during cutting, guaranteeing machining rigidity and accuracy; when switching is needed, the lock can be quickly released, allowing the tool holder to rotate easily. Operation is simple, and operators can quickly adjust the cutting edge position without disassembling the tool. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a disassembly diagram of the main body of the tool holder of this utility model; Figure 3 This is a disassembly diagram of the cutting edge of this utility model; Figure 4 This is a schematic diagram of the structure of the sleeve of this utility model; Figure 5 This is a schematic diagram of the locking mechanism of this utility model.

[0015] In the figure: 1. Tool head body; 2. Cutting edge; 21. Fastening bolt; 3. Tool holder body; 31. Reinforcing groove; 4. Tool holder structure; 5. Sleeve; 6. Locking mechanism; 61. Sleeve seat; 62. Threaded rod; 621. Rotating handle; 63. Locking block; 64. Reinforcing block. Detailed Implementation

[0016] 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.

[0017] This embodiment discloses a connection structure, according to the appendix. Figure 1 To be continued Figure 5 As shown, the tool includes a tool head body 1, a cutting edge 2, a tool holder body 3, a tool shank structure 4, a sleeve 5, and a locking mechanism 6. The tool head body 1 has several sets of detachable cutting edges 2 on its side. The tool holder body 3 is fixedly connected to the axial position of the tool head body 1. The sleeve 5 is fixedly connected to the tool shank structure 4. The tool holder body 3 is rotatably inserted into the sleeve 5. A locking mechanism 6 is provided on the outside of the sleeve 5. The locking mechanism 6 allows the tool holder body 3 to be detachably installed inside the sleeve 5, and the position of the tool holder body 3 can be locked or released through the locking mechanism 6, realizing the rotation switching and fixing of the tool holder body 3.

[0018] According to the appendix Figure 2 and attached Figure 3As shown, the cutter head body 1 and the cutting edge 2 have corresponding threaded holes inside. Fastening bolts 21 are threaded into these holes. By tightening the fastening bolts 21, the cutting edge 2 can be fixed to the cutter head body 1, enabling quick disassembly, replacement, and maintenance of the cutting edge 2. Furthermore, the cutting edge 2 is designed in multiple sets, and each set of cutting edges 2 can be replaced independently, allowing users to change to different models of cutting edges 2 according to machining needs, improving the applicability and flexibility of the tool.

[0019] According to the appendix Figure 4 and attached Figure 5 As shown, the locking mechanism 6 includes a sleeve 61, a threaded rod 62, and a locking block 63. The sleeve 61 is fixedly connected to the outside of the sleeve 5 and has a movable cavity inside. The threaded rod 62 is threadedly connected to the sleeve 61. The locking block 63 is rotatably connected to the end of the threaded rod 62 via a bearing and slidably connected within the movable cavity of the sleeve 61. The locking block 63 passes through the sleeve 5 and fits against the outer wall of the tool holder body 3. Furthermore, by rotating the threaded rod 62, the locking block 63 can be driven to move within the movable cavity, causing the locking block 63 to press or release the tool holder body 3, thereby achieving the locking or releasing of the tool holder body 3. A rotating handle 621 is fixedly connected to the threaded rod 62 for easy manual operation of the locking mechanism 6 by the user.

[0020] According to the appendix Figure 5 As shown, a reinforcing block 64 is fixedly connected to the locking block 63, and a reinforcing groove 31 corresponding to the position of the reinforcing block 64 is provided on the tool holder body 3. When the locking block 63 presses against the tool holder body 3, the reinforcing block 64 is embedded in the reinforcing groove 31, which enhances the circumferential fixation of the tool holder body 3, prevents the tool holder body 3 from rotating accidentally during the machining process, and improves cutting stability.

[0021] According to the appendix Figure 2 and attached Figure 4 As shown, the end of the tool holder body 3 away from the tool head body 1 is provided with a thickened part, which forms a limit between the sleeve 5 and the locking block 63. Furthermore, the thickened part plays an axial positioning role when the tool holder body 3 is inserted into the sleeve 5, preventing the tool holder body 3 from coming out and ensuring the accurate relative position of the tool head body 1 and the tool holder structure 4.

[0022] Specifically, during the processing, the cutter head body 1 does not rotate, while the material rotates, and the cutting edge 2 cuts the material. By rotating the cutter head body 3, different sets of cutting edges 2 can be quickly switched, realizing the replacement or model change of the cutting edge 2, reducing downtime and improving processing efficiency.

[0023] It is particularly important to emphasize that the cutting edge 2 is made of polycrystalline diamond, which has high hardness and wear resistance, making it suitable for high-precision cutting. The tool head body 1 and the tool holder body 3 are made of high-strength alloy steel to ensure the rigidity and durability of the overall structure.

[0024] It should be emphasized that the sleeve 5 and the tool holder structure 4 are fixed by welding or bolts, and the connection is firm; the tool holder body 3 and the sleeve 5 adopt a clearance fit, which allows the tool holder body 3 to rotate smoothly in the sleeve 5, which facilitates the switching of the cutting edge 2.

[0025] Example 1: This example uses cutting machining as an example, combined with the attached... Figure 1 To be continued Figure 5 Detailed workflow description: The workflow is as follows: In the initial state, the tool holder body 3 is inserted into the sleeve 5 and locked in place by the locking mechanism 6, and the cutting edge 2 is mounted on the tool head body 1 by the fastening bolt 21.

[0026] When it is necessary to replace the cutting edge 2, first loosen the locking mechanism 6: rotate the rotating handle 621 to drive the threaded rod 62 out, so that the locking block 63 is disengaged from the tool holder body 3, and the reinforcing block 64 is disengaged from the reinforcing groove 31.

[0027] Then, manually rotate the tool holder body 3 inside the sleeve 5 to switch the unused cutting edge group 2 on the tool head body 1 to the working position.

[0028] Re-lock the tool holder body 3: Rotate the handle 621 to push the locking block 63 to press the tool holder body 3, and at the same time, the reinforcing block 64 is embedded into the reinforcing groove 31 to complete the fixation.

[0029] Start the equipment; the material rotates, while the cutter head body 1 remains stationary, and the cutting edge 2 cuts the material. After processing, the above steps can be repeated to replace the cutting edge 2 depending on its wear condition.

[0030] Example 2: This example uses maintenance as an example, combined with the attached... Figure 1 To be continued Figure 5 Detailed workflow description: The workflow is as follows: When the cutting edge 2 is worn or needs to be replaced, first loosen the locking mechanism 6 and completely pull the tool holder body 3 out of the sleeve 5.

[0031] Use a tool to loosen the fastening bolt 21 and remove the old cutting edge 2 from the cutter head body 1.

[0032] Select the new cutting edge set 2, align it with the mounting position on the cutter head body 1, and fix it with the fastening bolt 21.

[0033] The tool holder body 3 is reinserted into the sleeve 5, and axial positioning is achieved through the thickened part.

[0034] Operate the locking mechanism 6 to lock the tool holder body 3, ensuring that the reinforcing block 64 engages with the reinforcing groove 31. After completion, the tool can be reused.

[0035] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are 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 connecting structure, comprising a cutter head body (1), characterized in that: The cutter head body (1) has several sets of detachable cutting edges (2) on its side, and the cutter head body (1) is fixedly connected to the axial position of the cutter head body (1) with a cutter bar body (3). The connection structure also includes a sleeve (5) fixedly connected to the tool holder structure (4). The tool holder body (3) is rotatably inserted into the sleeve (5). The sleeve (5) is provided with a locking mechanism (6) for locking the position of the tool holder body (3). The locking mechanism (6) allows the tool holder body (3) to be detachably installed inside the sleeve (5).

2. The connection structure according to claim 1, characterized in that, The locking mechanism (6) includes: The sleeve (61) is fixedly connected to the outside of the sleeve (5), and has a movable cavity inside; A threaded rod (62) is threaded onto the sleeve (61); The locking block (63) is rotatably connected to the end of the threaded rod (62) via a bearing and slidably connected in the movable cavity of the sleeve (61). The locking block (63) passes through the sleeve (5) and fits against the outer wall of the tool holder body (3).

3. The connection structure according to claim 2, characterized in that, A reinforcing block (64) is fixedly connected to the locking block (63), and a reinforcing groove (31) corresponding to the position of the reinforcing block (64) is provided on the main body of the cutter bar (3).

4. The connection structure according to claim 2, characterized in that, A rotating handle (621) is fixedly connected to the threaded rod (62).

5. The connection structure according to claim 1, characterized in that, The cutter head body (1) and the cutting edge (2) are provided with corresponding threaded holes, and fastening bolts (21) are threadedly connected inside the threaded holes.

6. A connection structure according to claim 2, characterized in that, The cutter bar body (3) has a thickened part at one end away from the cutter head body (1), and the thickened part is located between the sleeve (5) and the locking block (63) to form a limit.

7. A polycrystalline diamond cutting tool, characterized in that, It includes the connection structure as described in any one of claims 1-6.

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