High-heat-dissipation diamond slice

Abstract

The utility model discloses a high heat dissipation diamond slice which comprises a cutterhead, a plurality of integrally formed installation blocks are arranged on the periphery of the cutterhead, all the installation blocks incline towards the same direction with the cutterhead as the circle center, rhombic installation grooves are formed in the side edges, in the same direction, of all the installation blocks, and first screw holes are formed in the installation grooves. A rhombic tool bit is connected into the mounting groove through a bolt and the first screw hole, and the outer end of the tool bit extends to the outer side of the cutter head; the tool bit comprises a plurality of high-thermal-conductivity metal layers and diamond layers which are alternately arranged, and the diamond layers are arranged on the two outermost sides of the tool bit. The high-thermal-conductivity metal layers and the diamond layers which are alternately arranged are arranged in the direction perpendicular to the cutting face to form a perpendicular heat conduction channel, heat generated during cutting is transmitted to the metal layers through the diamond layers, the heat is rapidly guided out to the outer edge of the cutter head in the axial direction through the high thermal conductivity of the high-thermal-conductivity metal layers, and heat dissipation is accelerated.

Description

Technical Field

[0001] This utility model relates to the field of diamond slicing technology, specifically a high-heat-dissipation diamond slice. Background Technology

[0002] A diamond cutting tool mainly consists of two parts: a cutting disc and a diamond cutting head. The cutting disc is the main support for fixing the cutting head, while the cutting head plays a role in cutting or grinding during use.

[0003] Traditional diamond cutting has the following problems: (1) The high temperature generated by friction during the cutting process can easily lead to graphitization of the diamond layer or deformation of the matrix, which shortens the tool life. Existing heat dissipation designs mostly rely on external coolant, which is not adaptable to closed environments or precision machining scenarios and has a single heat dissipation method; (2) After the saw teeth wear down, the entire cutting disc needs to be replaced, which is costly and not environmentally friendly. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a high-heat-dissipation diamond slice to solve the problem of poor heat dissipation caused by the single heat dissipation method of current diamond slices.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A high-heat-dissipation diamond slicer includes a cutting disc. Several integrally formed mounting blocks are arranged around the periphery of the cutting disc. All mounting blocks are inclined in the same direction with the cutting disc as the center. A rhomboid mounting groove is formed on the side of each mounting block in the same direction. A first screw hole is provided in the mounting groove. A rhomboid cutting head is connected to the mounting groove via bolts and the first screw hole. The outer end of the cutting head extends to the outer side of the cutting disc. The cutting head includes several alternately arranged high thermal conductivity metal layers and diamond layers, with the two outermost layers of the cutting head being diamond layers.

[0007] Preferably, the mounting groove is provided with a circular limiting groove at one end near the cutter head, the limiting groove is connected to the mounting groove, and one end of the cutter head is provided with an integrally formed limiting block that matches the limiting groove, the limiting block being engaged in the limiting groove.

[0008] With the above technical solution, the limiting block on the cutter head is stuck in the limiting groove. When the cutter head rotates at high speed, it will give the cutter head a centrifugal force. Through the cooperation of the limiting block and the limiting groove, the cutter head can be prevented from being thrown outward under the action of centrifugal force.

[0009] Preferably, a thermally conductive silicone grease layer is detachably connected to the mounting groove and the limiting groove, and the cutting head is pressed tightly onto the thermally conductive silicone grease layer.

[0010] The above technical solution involves installing a thermally conductive silicone grease layer inside the mounting slot, which can transfer the heat from the cutter head to the cutter disc, thus improving the heat dissipation effect.

[0011] Preferably, the thermal grease layer is connected to a locking block on the side facing the mounting groove, and a locking groove matching the locking block is provided in the mounting groove. The thermal grease layer is locked in the locking groove by the locking block, and a second screw hole matching the first screw hole is provided on the thermal grease layer.

[0012] With the above technical solution, the thermal grease layer is easily worn after the cutter head works at high speed. The thermal grease layer is snapped into the mounting groove, which makes it easy to replace the thermal grease layer.

[0013] Preferably, the top surface of the mounting block is provided with a plurality of first heat dissipation holes, the mounting groove is provided with a plurality of second heat dissipation holes that match the first heat dissipation holes, and the mounting block is provided with a heat dissipation channel that connects the first heat dissipation holes with the corresponding second heat dissipation holes.

[0014] Through the above technical solution, when the cutter head rotates at high speed, the mounting slot can be connected to the external environment through the first heat dissipation hole, the heat dissipation channel and the second heat dissipation hole, thereby efficiently dissipating heat from the inside of the cutter head.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] (1) Alternating high thermal conductivity metal layers and diamond layers are arranged perpendicular to the cutting surface to form a vertical heat conduction channel. The heat generated during cutting is transferred to the metal layer through the diamond layer. The high thermal conductivity of the high thermal conductivity metal layer is used to quickly conduct the heat along the axial direction to the outer edge of the cutter head, thus accelerating heat dissipation.

[0017] (2) The cutter head is installed in the mounting slot by bolts. When the cutter head is worn, it is easy to replace the cutter head and reduce maintenance costs. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the present invention;

[0019] Figure 2 This is a top view of the present invention;

[0020] Figure 3 This is a split view of the installation block;

[0021] Figure 4 This is a cross-sectional view of the cutter head;

[0022] In the diagram: 1-Cutter head, 2-Mounting block, 3-Mounting groove, 4-First screw hole, 5-Bolt, 6-Cutter head, 601-High thermal conductivity metal layer, 602-Diamond layer, 603-Limiting block, 7-Limiting groove, 8-Thermal conductive grease layer, 9-Card block, 10-Card slot, 11-Second screw hole, 12-First heat dissipation hole, 13-Second heat dissipation hole. Detailed Implementation

[0023] 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.

[0024] Example 1

[0025] Please see Figures 1-4 A high-heat-dissipation diamond slicer includes a cutter disc 1. Several integrally formed mounting blocks 2 are arranged around the periphery of the cutter disc 1. All mounting blocks 2 are inclined in the same direction with the cutter disc 1 as the center. A rhomboid mounting groove 3 is formed on the side of all mounting blocks 2 in the same direction. A first screw hole 4 is provided in the mounting groove 3. A rhomboid cutter head 6 is installed in the mounting groove 3. A third screw hole is provided on the cutter head 6. The cutter head 6 is installed in the mounting groove 3 by the cooperation of bolts 5, the first screw hole, and the third screw hole. The outer end of the cutter head 6 extends to the outside of the cutter disc 1 to facilitate cutting. The cutter head 6 is installed in the mounting groove 3 by bolts 5, which facilitates replacement of the cutter head 6 when it wears out, reducing maintenance costs.

[0026] The mounting groove 3 has a circular limiting groove 7 at one end near the cutter head, which communicates with the mounting groove 3. One end of the cutter head 6 has an integrally formed limiting block 603 that matches the limiting groove, and the limiting block 603 is engaged within the limiting groove 7. With the limiting block 603 engaged within the limiting groove 7, when the cutter head 1 rotates at high speed, it generates a centrifugal force on the cutter head 6. The cooperation between the limiting block 603 and the limiting groove 7 prevents the cutter head 6 from being flung outwards under the centrifugal force.

[0027] The cutting head 6 includes several alternating high thermal conductivity metal layers 601 and diamond layers 602, with the two outermost layers of the cutting head 6 being diamond layers 602. The high thermal conductivity metal layers 601 are copper-aluminum alloy layers.

[0028] The method for manufacturing the blade is as follows:

[0029] Step 1: Preparation of layered preforms

[0030] Using powder metallurgy, copper-aluminum alloy powder and diamond composite layer powder are alternately laid in a mold, with each layer thickness controlled at 0.1-0.3 mm, forming a periodic structure of "diamond layer-metal layer-diamond layer". The binder metal in the diamond layer needs to be pre-plated (e.g., with a titanium coating) to enhance its chemical bonding with the diamond; trace amounts of boron or silicon are added to the metal layer powder to suppress the interfacial carbonization reaction between the metal and diamond during sintering.

[0031] Step 2: Spark Plasma Sintering (SPS)

[0032] The preform is placed in an SPS furnace, and axial pressure (30-50 MPa) and pulsed current are applied under vacuum or inert atmosphere to achieve rapid sintering via Joule heating. Sintering temperature: 700-900℃ (below the diamond graphitization critical temperature of 1200℃); holding time: 5-10 minutes, ensuring sufficient densification of the metal layer while avoiding thermal damage to the diamond. After sintering, the metal layer forms a continuous thermally conductive network, with diamond particles embedded within it through a metal binder. A carbide transition layer such as TiC or Cr3C2 is formed at the interface, enhancing the bonding strength.

[0033] Step 3: Post-processing and structural forming

[0034] The surface of the formed cutting head is sandblasted to increase the exposed ratio of the diamond layer (improving cutting performance), and a nano-diamond coating is applied to the surface by chemical vapor deposition (CVD) to further enhance wear resistance.

[0035] A thermally conductive silicone grease layer 8 is detachably connected to the mounting groove 3 and the limiting groove 7. The cutting head 6 is pressed tightly against the thermally conductive silicone grease layer 8. The installation of the thermally conductive silicone grease layer 8 in the mounting groove 3 can conduct heat from the cutting head 6 to the cutting disc, improving heat dissipation. Specifically, a retaining block 9 is connected to the side of the thermally conductive silicone grease layer 8 facing the mounting groove. A retaining groove 10 matching the retaining block is opened in the mounting groove 3. The thermally conductive silicone grease layer 8 is secured in the retaining groove 10 by the retaining block 9. A second screw hole 11 matching the first screw hole is opened on the thermally conductive silicone grease layer 8. After the cutting head 6 operates at high speed, it is easy to cause wear to the thermally conductive silicone grease layer 8. The thermally conductive silicone grease layer 8 is secured in the mounting groove 3, which facilitates the replacement of the thermally conductive silicone grease layer 8.

[0036] In summary, the cutting head generates a large amount of heat during high-speed rotation and cutting. The alternating high thermal conductivity metal layer and diamond layer are arranged perpendicular to the cutting surface to form a vertical heat conduction channel. The heat generated during cutting is transferred to the metal layer through the diamond layer. The high thermal conductivity of the copper-aluminum alloy is used to quickly conduct the heat along the axial direction to the outer edge of the substrate. The heat is then transferred to the cutting disc by the thermally conductive silicone grease layer, achieving rapid heat dissipation.

[0037] Example 2

[0038] Based on Embodiment 1, the top surface of the mounting block 2 is provided with multiple first heat dissipation holes 12, and the mounting groove 3 is provided with multiple second heat dissipation holes 13 that match the first heat dissipation holes. The mounting block 2 is provided with a heat dissipation channel that connects the first heat dissipation holes 12 with the corresponding second heat dissipation holes 13. When the cutter head 1 rotates at high speed, the mounting groove 3 can be connected to the external environment through the first heat dissipation holes 12, the heat dissipation channel, and the second heat dissipation holes 13, thereby dissipating heat from the inside of the cutter head 6 and accelerating heat dissipation.

[0039] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-heat-dissipation diamond slice, characterized in that: The device includes a cutter head (1), and a number of integrally formed mounting blocks (2) are provided on the periphery of the cutter head (1). All mounting blocks (2) are inclined in the same direction with the cutter head (1) as the center. All mounting blocks (2) have diamond-shaped mounting grooves (3) on their sides in the same direction. A first screw hole (4) is provided in the mounting groove (3). A diamond-shaped cutter head (6) is connected in the mounting groove (3) by bolts (5) and the first screw hole (4). The outer end of the cutter head (6) extends to the outside of the cutter head (1). The cutter head (6) includes a number of alternating high thermal conductivity metal layers (601) and diamond layers (602). The two outermost layers of the cutter head (6) are diamond layers (602).

2. The high heat dissipation diamond slice according to claim 1, characterized in that: The mounting groove (3) has a circular limiting groove (7) at one end near the cutter head. The limiting groove (7) is connected to the mounting groove (3). One end of the cutter head (6) has an integrally formed limiting block (603) that matches the limiting groove. The limiting block (603) is locked in the limiting groove (7).

3. The high heat dissipation diamond slice according to claim 2, characterized in that: A thermally conductive silicone grease layer (8) is detachably connected to the mounting groove (3) and the limiting groove (7), and the cutting head (6) is pressed tightly on the thermally conductive silicone grease layer (8).

4. The high heat dissipation diamond slice according to claim 3, characterized in that: The thermal grease layer (8) is connected to a locking block (9) on the side facing the mounting groove. The mounting groove (3) is provided with a locking groove (10) that matches the locking block. The thermal grease layer (8) is locked in the locking groove (10) by the locking block (9). The thermal grease layer (8) is provided with a second screw hole (11) that matches the first screw hole.

5. A high-heat-dissipation diamond slice according to claim 4, characterized in that: The mounting block (2) has a plurality of first heat dissipation holes (12) on its top surface, and a plurality of second heat dissipation holes (13) matching the first heat dissipation holes are provided in the mounting groove (3). The mounting block (2) has a heat dissipation channel that connects the first heat dissipation holes (12) with the corresponding second heat dissipation holes (13).

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