A diamond compact cutting tool with a guide and chip evacuation structure

Abstract

The present application relates to the technical field of cutting tool, especially to a diamond composite cutting tool with guiding and chip removal structure. Its technical scheme comprises a handle and a tool body arranged at one end of the handle, a liquid storage bin is arranged in the handle, a plurality of gradient diamond composite cutting blades are arranged at the end of the tool body, a spiral cutting edge and a spiral chip removal groove are arranged on the outer wall of the tool body. A chip removal mechanism and a cooling mechanism are arranged in the tool body. The chip removal mechanism comprises a guide groove arranged at the end of the tool body, a trapezoidal nozzle three arranged at the output end of the liquid storage bin, a shunt pipe slidably arranged in the connecting sleeve, a trapezoidal nozzle two arranged on both sides of the shunt pipe, a shunt channel communicated with the trapezoidal nozzle two and a plurality of inclined nozzles arranged on one side of the spiral chip removal groove. The cooling mechanism comprises an annular spiral flow guide plate arranged in the tool body and a trapezoidal nozzle one arranged between the annular spiral flow guide plate and the shunt pipe. The present application effectively improves the cooling efficiency, chip removal capacity, tool replacement convenience and sealing reliability of the cutting tool.

Description

Technical Field

[0001] This invention relates to the field of cutting tool technology, and in particular to a diamond composite cutting tool with a guiding and chip removal structure. Background Technology

[0002] Diamond composite cutting tools are widely used in the precision machining of non-metallic hard and brittle materials, high-wear-resistant composite materials, high-silicon aluminum alloys, and various tough non-ferrous metals due to their extremely high hardness, excellent wear resistance, good thermal conductivity, and low coefficient of friction. In complex conditions such as deep hole machining, cutting of difficult-to-machine materials, and high-speed cutting, the tool's cooling efficiency, chip removal capacity, and the reliability of the connection between the tool body and the tool holder directly affect the machining quality and tool life. As machining continues to develop towards higher precision and higher efficiency, higher requirements are being placed on the comprehensive performance of cutting tools.

[0003] In existing technologies, diamond composite cutting tools typically employ external casting cooling, where cutting fluid is sprayed onto the cutting area via external nozzles for cooling and chip removal. Some improved tools incorporate simple, straight-through cooling channels within the tool body, allowing cutting fluid to flow from the shank to the tool tip and directly onto the vicinity of the cutting edge. Regarding the connection between the tool body and shank, conventional tools often use threaded connections or tapered mating, relying on friction to transmit torque and achieve axial positioning. For sealing, existing tools typically use a single O-ring or gasket seal at the interface between the shank and tool body to prevent cutting fluid leakage from the connection.

[0004] However, in terms of cooling and chip removal, the traditional straight-through cooling channel of the prior art results in a short residence time of the cutting fluid inside the tool, insufficient heat exchange, and difficulty in effectively coordinating the direction of cutting fluid spray and chip removal. This leads to the accumulation of chips in the chip removal groove, forming a "chip blockage" phenomenon. Especially in deep hole machining, the chips are difficult to be effectively removed, which seriously affects the machining efficiency and surface quality. Therefore, this application proposes a diamond composite cutting tool with a guiding and chip removal structure. Summary of the Invention

[0005] The purpose of this invention is to address the problems existing in the background art by proposing a diamond composite cutting tool with a guiding and chip removal structure.

[0006] This application provides a diamond composite cutting tool with a guiding and chip removal structure, including a tool holder and a tool body disposed at one end of the tool holder: A liquid storage chamber is installed inside the handle near the blade body, and a multi-layer gradient diamond composite insert is installed on the blade body away from the handle, and a cutting edge is installed on the outer wall of the blade body; the cutting tool also includes a chip removal mechanism disposed inside the blade body. The chip removal mechanism includes a guide groove at the end of the cutter body, and a spiral chip removal groove on the outer wall of the cutter body. A trapezoidal nozzle three is installed at the output end of the liquid storage tank, and a connecting sleeve is installed at one end of the trapezoidal nozzle three. A diverter pipe is slidably arranged inside the connecting sleeve. Trapezoidal nozzle two is installed at the output ends on both sides of the diverter pipe. A diverter channel communicating with the trapezoidal nozzle two is opened inside the cutter body. Multiple oblique nozzles are opened inside the cutter body on one side of the spiral chip removal groove, and the oblique nozzles are connected to the diverter channel. The cutting tool also includes a cooling mechanism disposed inside the cutter body. The cooling mechanism includes an annular spiral guide plate installed inside the blade body, and a trapezoidal nozzle is provided between the annular spiral guide plate and the flow divider.

[0007] Optionally, the cutting edge and the spiral chip removal groove are both spirally arranged on the outer wall of the tool body, and the guide groove is obliquely arranged with its oblique opening facing the spiral chip removal groove.

[0008] Optionally, the angled nozzle is designed to be inclined, and its angled opening faces the end of the blade body near the handle.

[0009] Optionally, the large-diameter opening of the angled nozzle faces outward, while the small-diameter opening is connected to the diversion channel.

[0010] Optionally, the two large-diameter openings and one small-diameter opening of the trapezoidal nozzle are connected to the output end of the flow divider, the two small-diameter openings of the trapezoidal nozzle are connected to the flow divider channel, and the large-diameter opening of the trapezoidal nozzle is connected to the inside of the cutter body.

[0011] Optionally, the cutting tool may also include a connecting mechanism disposed inside the tool holder; The connecting mechanism includes a Z-shaped locking block that is slidably disposed inside the handle, and a sliding shaft is installed inside the Z-shaped locking block. A telescopic spring is sleeved on the outer wall of the sliding shaft. A slot for the Z-shaped locking block to slide is opened inside the blade body near the handle.

[0012] Optionally, one end of the telescopic spring is fixedly disposed inside the Z-shaped locking block, and the other end of the telescopic spring is fixedly disposed inside the tool handle.

[0013] Optionally, the cutting tool may also include a sealing mechanism disposed inside the tool holder; The sealing mechanism includes a sealing ring that is slidably disposed inside the handle near the side of the blade body, and a limit plate is fixedly disposed on the outer wall of the sealing ring. A spring sheet is disposed inside the sealing ring, and one side of the outer wall of the spring sheet is in contact with the inside of the handle.

[0014] Optionally, double sealing rings are provided on both sides of the outer wall of the diverter, and the double sealing rings on both sides are respectively attached to the inner wall of the tool holder and the outer wall of the connecting sleeve.

[0015] Optionally, the limiting plate is slidably disposed inside the tool holder, and one side of the outer wall of the sealing ring is in contact with the tool body.

[0016] Compared with the prior art, this application includes at least one of the following beneficial technical effects: This invention, by setting up a trapezoidal nozzle three, a flow divider, a trapezoidal nozzle two, a trapezoidal nozzle one, a flow divider channel, an oblique nozzle, and an annular spiral guide plate, achieves forced circulation cooling of the tool body by extending the heat exchange path through the annular spiral guide plate. On the other hand, the trapezoidal nozzle two and the oblique nozzle form a high-speed jet that actively impacts and removes chips along the chip removal direction. At the same time, the centrifugal force of the spiral chip removal groove assists in chip removal, forming a three-in-one synergistic chip removal and cooling mechanism of internal cooling, external impact, and centrifugal force, which significantly improves the heat dissipation efficiency and chip removal capacity of the tool.

[0017] Furthermore, by setting up Z-shaped locking blocks, sliding shafts, telescopic springs, and slots, a quick plug-in connection between the tool body and the tool holder is achieved. The horizontal part of the Z-shaped locking block cooperates with the slot to achieve axial locking, while the vertical part fits against the side wall of the slot to achieve circumferential anti-rotation. A single Z-shaped locking block simultaneously performs the dual functions of axial locking and circumferential positioning, and the telescopic spring provides continuous preload to ensure self-locking reliability. Tool body replacement can be completed quickly without the aid of tools, greatly shortening tool change time.

[0018] Finally, by setting up a double sealing ring and an end-face sealing mechanism consisting of a sealing ring, a limiting plate, and a spring plate, multi-stage sealing of the coolant flow path is achieved: the double sealing ring provides redundant sealing at the dynamic sliding interface between the distributor pipe, the connecting sleeve, and the tool holder; the spring plate always applies a spring force towards the tool body to the sealing ring, keeping the sealing ring in close contact with the end face of the tool body, forming an adaptive compensation end-face seal, which effectively prevents leakage of high-pressure coolant inside the tool and ensures efficient delivery of coolant along the preset path. Attached Figure Description

[0019] Figure 1 A schematic diagram of the overall structure of a diamond composite cutting tool with a guiding and chip removal structure; Figure 2 This is a schematic diagram of a multi-layer gradient diamond composite cutting tool structure. Figure 3 This is a schematic diagram of the annular spiral guide plate structure; Figure 4 This is a schematic diagram of the internal structure of the blade. Figure 5 This is a schematic diagram of the internal structure of the knife handle; Figure 6 This is a schematic diagram of a Z-shaped card block structure; Figure 7 This is a schematic diagram of the spring sheet structure.

[0020] Reference numerals in the attached drawings: 1. Tool holder; 2. Tool body; 3. Cutting edge; 4. Multi-layer gradient diamond composite insert; 5. Guide groove; 6. Angled nozzle; 7. Annular spiral guide plate; 8. Trapezoidal nozzle one; 9. Diverter pipe; 10. Trapezoidal nozzle two; 11. Diverter channel; 12. Liquid storage tank; 13. Trapezoidal nozzle three; 14. Connecting sleeve; 15. Double sealing ring; 16. Slot; 17. Z-shaped locking block; 18. Sliding shaft; 19. Telescopic spring; 20. Sealing ring; 21. Limiting plate; 22. Spring plate; 23. Spiral chip removal groove. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] like Figures 1-5 As shown, the present invention proposes a diamond composite cutting tool with a guiding and chip removal structure, including a tool holder 1, a tool body 2, a chip removal mechanism disposed inside the tool body 2, and a cooling mechanism disposed inside the tool body 2; a liquid reservoir 12 is installed inside the tool holder 1 near the tool body 2, a multi-layer gradient diamond composite insert 4 is installed at the end of the tool body 2 away from the tool holder 1, and a cutting edge 3 is installed on the outer wall of the tool body 2; the cutting tool also includes a chip removal mechanism disposed inside the tool body 2; The chip removal mechanism includes a guide groove 5 at the end of the blade body 2, and a spiral chip removal groove 23 on the outer wall of the blade body 2. A trapezoidal nozzle 3 13 is installed at the output end of the liquid storage tank 12, and a connecting sleeve 14 is installed at one end of the trapezoidal nozzle 3 13. A diversion pipe 9 is slidably arranged inside the connecting sleeve 14. Trapezoidal nozzle 2 10 is installed at the output ends on both sides of the diversion pipe 9. A diversion channel 11 communicating with the trapezoidal nozzle 2 10 is opened inside the blade body 2. Multiple oblique nozzles 6 are opened inside the blade body 2 on one side of the spiral chip removal groove 23, and the oblique nozzles 6 are connected to the diversion channel 11. In this embodiment, the cooling mechanism includes an annular spiral guide plate 7 installed inside the cutter body 2, and a trapezoidal nozzle 8 is provided between the annular spiral guide plate 7 and the splitter pipe 9; the cutting edge 3 and the spiral chip removal groove 23 are both spirally arranged on the outer wall of the cutter body 2, the guide groove 5 is obliquely arranged, and its oblique opening faces the spiral chip removal groove 23. The guide groove 5 is opened on the end face of the cutter body 2, and its starting position is close to the back of the cutting edge of the multilayer gradient diamond composite insert 4. The bottom of the guide groove 5 starts from the end face of the cutter body 2 near the cutting edge of the insert, and extends towards the outer circumference of the cutter body 2 and simultaneously towards the cutter body. 2 extends towards the handle 1 and finally opens at the starting end of the spiral chip removal groove 23 on the outer wall of the cutter body 2; the oblique nozzle 6 is designed with an inclination, and its oblique opening faces the end of the cutter body 2 near the handle 1; the large diameter opening of the oblique nozzle 6 faces outward, and the small diameter opening is connected to the flow distribution channel 11; the large diameter opening of the trapezoidal nozzle 2 10 and the small diameter opening of the trapezoidal nozzle 1 8 are connected to the output end of the flow distribution pipe 9, the small diameter opening of the trapezoidal nozzle 2 10 is connected to the flow distribution channel 11, and the large diameter opening of the trapezoidal nozzle 1 8 is connected to the inside of the cutter body 2. The chip removal mechanism and the cooling mechanism are described in detail below: In this embodiment, the cutting tool is first mounted onto the machine tool spindle via the tool holder 1, and the machine tool spindle drives the tool holder 1 and the tool body 2 to rotate at high speed. At this time, the external coolant system injects high-pressure coolant into the reservoir 12 located inside the tool holder 1 near the tool body 2. After entering the reservoir 12, the coolant flows through the trapezoidal nozzle 3 13 installed at the output end of the reservoir 12 under pressure. The trapezoidal nozzle 3 13 adopts a tapered trapezoidal cross-section design, with its large-diameter opening facing the reservoir 12 and its small-diameter opening facing the connecting sleeve 14. According to Bernoulli's principle, the flow velocity of the coolant increases significantly when it flows through the trapezoidal nozzle 3 13, and the pressure energy is converted into kinetic energy, forming a high-speed jet.

[0023] The high-speed jet then enters the connecting sleeve 14 and impacts the end of the diverter pipe 9, which is slidably disposed inside the connecting sleeve 14. After receiving the coolant, the diverter pipe 9 splits it into two paths: one path flows to the trapezoidal nozzle 8, and the other path flows to the trapezoidal nozzles 10 on both sides.

[0024] The coolant flowing to the trapezoidal nozzle 8 follows this path: the small-diameter opening of the nozzle connects to the output end of the distributor pipe 9, while the large-diameter opening communicates with the interior of the tool body 2. The reverse trapezoidal design creates a diffusion effect as the coolant enters the tool body 2, slowing it down and increasing the contact area. Subsequently, the coolant flows through the annular spiral guide plate 7 installed inside the tool body 2. The spiral structure of the annular spiral guide plate 7 forces the coolant to flow along a spiral path, significantly extending the heat exchange path length within the tool body 2. During this process, the coolant makes full contact with the inner wall of the tool body 2, efficiently absorbing the heat generated during high-speed cutting and achieving forced cooling of the entire tool body 2.

[0025] The coolant flowing through the other trapezoidal nozzles 10 on both sides follows this path: the large-diameter opening of the trapezoidal nozzle 10 connects to the output end of the distributor pipe 9, while the small-diameter opening connects to the distributor channel 11. The coolant is accelerated again as it flows through the trapezoidal nozzle 10, forming a high-speed jet that enters the distributor channel 11. Subsequently, the coolant is transported along the distributor channel 11 to multiple angled nozzles 6 located inside the cutter body 2 on one side of the spiral chip removal groove 23. These angled nozzles 6 are designed with an incline, with their large-diameter openings facing outwards and their small-diameter openings connected to the distributor channel 11. As the coolant flows through the angled nozzles 6, the cross-section contracts sharply, causing the flow velocity to surge again, forming a high-speed, high-pressure fine jet that is ejected from the angled nozzles 6.

[0026] The angled opening direction of the inclined nozzle 6 is set towards the end of the tool body 2 near the tool holder 1, that is, along the chip removal direction during cutting. At this time, since the groove wall of the guide groove 5 is inclined and its opening is directly opposite the spiral chip removal groove 23, the splashed chips collide with the inclined surface of the guide groove 5 under the action of inertia. The inclined surface changes the movement direction of the chips, forcibly guiding and gathering them to the entrance of the spiral chip removal groove 23. At the same time, the centrifugal force generated by the high-speed rotation of the tool also causes the chips to be thrown outward, forming a resultant force with the guiding effect of the inclined surface of the guide groove 5. The chips can be quickly and orderly introduced into the spiral chip removal groove 23, and will not accumulate irregularly on the end face of the tool body 2 or near the cutting edge, thereby avoiding secondary interference of the chips to the cutting area.

[0027] At this moment, the high-speed jet ejected from the angled nozzle 6 acts precisely on the chips within the spiral chip removal groove 23. The impact force of the high-speed jet pushes the chips backward along the spiral chip removal groove 23, achieving active chip removal; secondly, the coolant in the jet itself directly contacts the chips and the tool body 2, carrying away cutting heat; finally, due to the angled design of the angled nozzle 6, the jet, while impacting the chips, also forms local vortices within the spiral chip removal groove 23, further enhancing the ability to peel off adhering chips.

[0028] In addition, the spiral chip removal groove 23 and the cutting edge 3 are both spirally arranged on the outer wall of the tool body 2. When the tool rotates, the centrifugal force generated by the spiral structure itself will also throw the chips outward, forming a combined force with the jet action of the oblique nozzle 6, which together promotes the rapid discharge of chips.

[0029] like Figures 1-6 As shown, based on Embodiment 1, the cutting tool further includes a connecting mechanism disposed inside the tool holder 1; the connecting mechanism includes a Z-shaped locking block 17 slidably disposed inside the tool holder 1, and a sliding shaft 18 is installed inside the Z-shaped locking block 17, a telescopic spring 19 is sleeved on the outer wall of the sliding shaft 18, and a slot 16 for sliding of the Z-shaped locking block 17 is opened inside the tool body 2 near the end of the tool holder 1. One end of the telescopic spring 19 is fixedly installed inside the Z-shaped locking block 17, and the other end of the telescopic spring 19 is fixedly installed inside the tool holder 1. The connection mechanism is described in detail below: In this embodiment, during installation, the operator inserts one end of the blade body 2 into the handle 1. As the blade body 2 is inserted, the end of the blade body 2 first contacts the Z-shaped locking block 17 located inside the handle 1. The Z-shaped locking block 17 is slidably disposed inside the handle 1, and a sliding shaft 18 is installed inside it. A telescopic spring 19 is sleeved on the outer wall of the sliding shaft 18. One end of the telescopic spring 19 is fixedly disposed inside the Z-shaped locking block 17, and the other end is fixedly disposed inside the handle 1. The spring always applies a preload force toward the axis of the handle 1 to the Z-shaped locking block 17.

[0030] When the end of the blade 2 pushes against the Z-shaped locking block 17, the Z-shaped locking block 17 overcomes the elastic force of the telescopic spring 19 and slides away from the axis of the sliding shaft 18 along the axial direction, thereby making room and allowing the blade 2 to continue to penetrate deeper.

[0031] Once the blade body 2 is inserted into place, the slot 16 inside the blade body 2, located near the end of the handle 1, moves directly below the Z-shaped locking block 17. At this point, the Z-shaped locking block 17 loses support from the end of the blade body 2 and, under the elastic force of the telescopic spring 19, automatically resets along the sliding shaft 18, slides towards the axis of the handle 1, and locks into the slot 16.

[0032] After the transverse portion of the Z-shaped locking block 17 is engaged in the slot 16, it restricts the axial movement of the cutter body 2 relative to the handle 1, thus playing an axial locking role. Secondly, after the longitudinal portion of the Z-shaped locking block 17 is engaged, it fits against the side wall of the slot 16, restricting the circumferential rotation of the cutter body 2 relative to the handle 1, thus playing an anti-rotation positioning role.

[0033] When it is necessary to disassemble the blade body 2, the operator only needs to press the exposed part of the Z-shaped locking block 17 to make it overcome the elastic force of the telescopic spring 19 and exit the slot 16, so that the blade body 2 can be easily pulled out from the handle 1.

[0034] like Figure 1 , Figure 3 and Figure 7 As shown, based on Embodiment 1, the cutting tool further includes a sealing mechanism disposed inside the tool holder 1; the sealing mechanism includes a sealing ring 20 slidably disposed inside the tool holder 1 near the tool body 2, and a limit plate 21 is fixedly disposed on the outer wall of the sealing ring 20, and a spring plate 22 is disposed inside the sealing ring 20, and one side of the outer wall of the spring plate 22 is in contact with the inside of the tool holder 1. The shunt pipe 9 has double sealing rings 15 on both sides of its outer wall, and the double sealing rings 15 on both sides are respectively in contact with the inner wall of the tool holder 1 and the outer wall of the connecting sleeve 14; the limiting plate 21 is slidably disposed inside the tool holder 1, and one side of the outer wall of the sealing ring 20 is in contact with the tool body 2. The sealing mechanism is described in detail below: In this embodiment, during the tool's operation, high-pressure coolant enters the connecting sleeve 14 from the reservoir 12 inside the tool holder 1 via the trapezoidal nozzle 13, and then enters the distributor pipe 9. Along this flow path, at the sliding interface between the distributor pipe 9, the connecting sleeve 14, and the tool holder 1, double sealing rings 15 are provided on both sides of the outer wall of the distributor pipe 9. These double sealing rings 15 are made of elastic material, with one side fitting against the inner wall of the tool holder 1 and the other side fitting against the outer wall of the connecting sleeve 14. Since the distributor pipe 9 needs to withstand the impact of high-pressure coolant during operation and may experience slight axial displacement within the connecting sleeve 14, the design of the double sealing rings 15 can accommodate this relative movement while maintaining a reliable seal under dynamic conditions. The double-ring structure of the double sealing rings 15 provides redundant sealing; even if one sealing ring wears or fails, the other sealing ring can still ensure a sealing effect, significantly improving the reliability of the seal.

[0035] Secondly, a sealing mechanism is provided at the interface between the end faces of the handle 1 and the blade body 2. This sealing mechanism includes a sealing ring 20 slidably disposed inside the handle 1 near the blade body 2. A limiting plate 21 is fixedly disposed on the outer wall of the sealing ring 20, and this limiting plate 21 is slidably disposed inside the handle 1 to limit the sliding stroke of the sealing ring 20 and prevent it from dislodging from the handle 1. A spring plate 22 is disposed inside the sealing ring 20, and one side of the outer wall of the spring plate 22 is in contact with the interior of the handle 1.

[0036] When the blade body 2 is inserted into the handle 1, the end of the blade body 2 is in contact with one side of the outer wall of the sealing ring 20. At this time, the spring plate 22 is compressed, applying a continuous elastic force to the sealing ring 20 in the direction of the blade body 2. This elastic force forces the sealing ring 20 to always maintain tight contact with the end face of the blade body 2, forming an end face seal. Due to the elastic effect of the spring plate 22, this sealing structure is self-adaptive: even if there are minor machining errors on the end face of the blade body 2 or minor wear occurs during use, the spring plate 22 can automatically compensate, ensuring that the sealing ring 20 is always in contact with the end face of the blade body 2, maintaining the sealing effect.

[0037] The above specific embodiments are merely several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A diamond composite cutting tool with a guiding and chip removal structure, comprising a tool holder (1) and a tool body (2) disposed at one end of the tool holder (1), characterized in that: The tool holder (1) has a liquid storage tank (12) installed inside the tool body (2) on the side close to the tool body (2), and a multi-layer gradient diamond composite blade (4) is installed on the end of the tool body (2) away from the tool holder (1), and a cutting edge (3) is installed on the outer wall of the tool body (2); the cutting tool also includes a chip removal mechanism disposed inside the tool body (2); The chip removal mechanism includes a guide groove (5) at the end of the cutter body (2), and a spiral chip removal groove (23) is provided on the outer wall of the cutter body (2). A trapezoidal nozzle three (13) is installed at the output end of the liquid storage tank (12), and a connecting sleeve (14) is installed at one end of the trapezoidal nozzle three (13). A diversion pipe (9) is slidably arranged inside the connecting sleeve (14). A trapezoidal nozzle two (10) is installed at the output ends on both sides of the diversion pipe (9). A diversion channel (11) communicating with the trapezoidal nozzle two (10) is provided inside the cutter body (2). A plurality of oblique nozzles (6) are provided inside the cutter body (2) on one side of the spiral chip removal groove (23), and the oblique nozzles (6) are connected to the diversion channel (11). The cutting tool also includes a cooling mechanism provided inside the cutter body (2). The cooling mechanism includes an annular spiral guide plate (7) installed inside the blade body (2), and a trapezoidal nozzle (8) is provided between the annular spiral guide plate (7) and the split pipe (9).

2. A diamond composite cutting tool with a guiding and chip removal structure according to claim 1, characterized in that, The cutting edge (3) and the spiral chip removal groove (23) are both spirally arranged on the outer wall of the tool body (2), and the guide groove (5) is obliquely arranged, with its oblique opening facing the spiral chip removal groove (23).

3. A diamond composite cutting tool with a guiding and chip removal structure according to claim 1, characterized in that, The oblique nozzle (6) is designed to be inclined, and its oblique opening faces the blade body (2) near the end of the handle (1).

4. A diamond composite cutting tool with a guiding and chip removal structure according to claim 1, characterized in that, The oblique nozzle (6) has a large diameter opening facing outwards, and a small diameter opening connected to the diversion channel (11).

5. A diamond composite cutting tool with a guiding and chip removal structure according to claim 1, characterized in that, The large diameter opening of the trapezoidal nozzle two (10) and the small diameter opening of the trapezoidal nozzle one (8) are connected to the output end of the diversion pipe (9). The small diameter opening of the trapezoidal nozzle two (10) is connected to the diversion channel (11). The large diameter opening of the trapezoidal nozzle one (8) is connected to the inside of the blade body (2).

6. A diamond composite cutting tool with a guiding and chip removal structure according to claim 1, characterized in that, The cutting tool also includes a connecting mechanism disposed inside the tool holder (1); The connecting mechanism includes a Z-shaped locking block (17) that is slidably disposed inside the handle (1), and a sliding shaft (18) is installed inside the Z-shaped locking block (17). A telescopic spring (19) is sleeved on the outer wall of the sliding shaft (18). A slot (16) for sliding of the Z-shaped locking block (17) is opened inside the blade body (2) near the end of the handle (1).

7. A diamond composite cutting tool with a guiding and chip removal structure according to claim 6, characterized in that, One end of the telescopic spring (19) is fixedly installed inside the Z-shaped locking block (17), and the other end of the telescopic spring (19) is fixedly installed inside the handle (1).

8. A diamond composite cutting tool with a guiding and chip removal structure according to claim 1, characterized in that, The cutting tool also includes a sealing mechanism disposed inside the tool holder (1); The sealing mechanism includes a sealing ring (20) that is slidably disposed inside the handle (1) near the side of the blade body (2), and a limiting plate (21) is fixedly disposed on the outer wall of the sealing ring (20). A spring plate (22) is disposed inside the sealing ring (20), and one side of the outer wall of the spring plate (22) is in contact with the inside of the handle (1).

9. A diamond composite cutting tool with a guiding and chip removal structure according to claim 1, characterized in that, The shunt tube (9) has double sealing rings (15) on both sides of its outer wall, and the double sealing rings (15) on both sides are respectively attached to the inner wall of the handle (1) and the outer wall of the connecting sleeve (14).

10. A diamond composite cutting tool with a guiding and chip removal structure according to claim 8, characterized in that, The limiting plate (21) is slidably disposed inside the handle (1), and one side of the outer wall of the sealing ring (20) is in contact with the blade body (2).

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