Saw blade and method of processing thereof

Abstract

The application discloses a saw blade and a processing method thereof. The saw blade comprises a disc base body and a cutter head. A plurality of cooling flow channels are arranged in the disc base body. The plurality of cooling flow channels are distributed along the circumference of the disc base body and are arranged in the radial direction of the disc base body. The disc base body is further provided with a plurality of inlets and outlets. The inlets are arranged in one-to-one correspondence with the cooling flow channels and are arranged in communication with the cooling flow channels. The inlets are arranged on the end surface of the disc base body and are used for allowing cooling medium to enter. The outlets are arranged in one-to-one correspondence with the cooling flow channels and are arranged in communication with the cooling flow channels. The outlets are arranged on the outer circumferential surface of the disc base body and are used for allowing the cooling medium to flow out. The cross-sectional area of the cooling flow channel perpendicular to the flow direction of the cooling medium gradually increases from the inlet to the outlet. The plurality of cutter heads are fixedly connected to the outer circumference of the disc base body. The saw blade of the application improves the heat dissipation and chip removal effect of the saw blade by designing the cooling flow channel.

Description

Technical Field

[0001] This application relates to the field of saw blade technology, and in particular to a saw blade and its processing method. Background Technology

[0002] In related technologies, saw blades typically have a single-layer substrate. During cutting operations, these saw blades rely primarily on passive cooling methods such as external coolant spraying or air cooling. Various cooling media only act on the outer surface of the saw blade, failing to effectively dissipate heat and remove chips from the cutting area of ​​the blade tip. Most of the cooling media is lost through splashing or flowing on the outer surface, resulting in ineffective waste. The root of the saw blade tip, lacking sufficient cooling media, forms a localized high-temperature zone. This heat accumulation reduces the strength of the blade tip material, making it prone to incomplete welding or even complete detachment from the substrate, severely impacting the saw blade's lifespan. Summary of the Invention

[0003] This application aims to at least solve one of the aforementioned technical problems existing in the prior art. Therefore, the object of this application is to provide a saw blade capable of improving its heat dissipation capacity.

[0004] To achieve the above objectives, the technical solution adopted in this application is as follows: A saw blade according to a first aspect of this application includes: A disc-shaped substrate has multiple cooling channels arranged inside it, distributed circumferentially and extending radially. The substrate also has multiple inlets and outlets. Each inlet corresponds to one of the cooling channels and is located on an end face of the substrate for the entry of cooling medium. Each outlet corresponds to one of the cooling channels and is located on the outer circumferential surface of the substrate for the exit of cooling medium. The cross-sectional area of ​​each cooling channel, perpendicular to the direction of cooling medium flow, gradually increases from the inlet to the outlet. The cutting heads, a plurality of the cutting heads, are fixedly connected to the outer periphery of the disc base.

[0005] A saw blade according to an embodiment of this application has at least the following beneficial effects: The saw blade provided in this embodiment has multiple cooling channels distributed circumferentially and extending radially inside its disc base. When the saw blade rotates at high speed, a negative pressure is generated at the inlet on the end face of the disc base, actively drawing external cooling medium into the cooling channels. As the cross-sectional area of ​​the cooling channels gradually increases from the inlet to the outlet, the flow velocity of the cooling medium in the cooling channels changes. In the inlet region with a smaller cross-sectional area, the cooling medium has a higher flow velocity and obtains a larger dynamic pressure, accelerating the cooling medium into the cooling channels and causing it to actively flow from the inlet to the outlet. Since the outlet is located on the outer circumferential surface of the disc base, and multiple cutting heads are fixedly connected to the outer circumference of the disc base, the cooling medium directly acts on the cutting area of ​​the cutting head after flowing out of the outlet, effectively dissipating heat from the cutting head. Simultaneously, the cooling medium carries away the chips generated by the cutting head during discharge, further improving chip removal efficiency.

[0006] According to some embodiments of this application, the plurality of said inlets are staggered on the axial end face of the disk substrate.

[0007] According to some embodiments of this application, a plurality of the outlets are distributed circumferentially along the disk substrate, and the outlets are disposed between two adjacent cutter heads.

[0008] According to some embodiments of this application, the cutting head has a cutting surface and a side surface connected to the cutting surface. The cutting surface is used to contact and cut the workpiece. The side surface faces the adjacent cutting head. The cutting head is provided with a guide groove, which is formed on the side surface and / or the cutting surface.

[0009] According to some embodiments of this application, the disc base includes a mounting base, a first disc body and a second disc body disposed opposite to each other; The mounting base is disposed around the outer periphery of the first disc and the second disc, the cooling channel is formed between the first disc and the second disc, the inlet is opened on the end face of the first disc and / or the second disc, the outlet is opened on the outer peripheral surface of the mounting base, and the plurality of cutting heads are fixed on the outer peripheral surface of the mounting base.

[0010] According to some embodiments of this application, a plurality of backing modules are provided between the first disk and the second disk, and the plurality of backing modules are distributed along the circumference of the disk base; each backing module includes a plurality of backs, and the plurality of backs in the same backing module are arranged sequentially along the circumference, and two adjacent backs, the first disk and the second disk enclose the cooling channel.

[0011] According to some embodiments of this application, within the same spine module, a plurality of spines extend radially inward from the periphery of the first disc and / or the second disc, and the lengths of the spines arranged circumferentially decrease sequentially.

[0012] According to some embodiments of this application, the mounting base, the first disc body, and the second disc body are integrally formed; Alternatively, the first disc body and the second disc body are fixedly connected by welding, and the mounting base is welded or freeze-fitted to the first disc body and the second disc body.

[0013] According to some embodiments of this application, the mounting base is provided with a plurality of mounting slots along the circumference, and the cutting head corresponds one-to-one with the mounting slot, and the cutting head is assembled in the mounting slot.

[0014] According to some embodiments of this application, the cutting head is welded or cryogenically interference-fitted into the mounting groove.

[0015] A method for processing a saw blade according to a second aspect of this application includes the following steps: A first disc and a second disc are provided, with multiple inlets machined on the end faces of the first disc and / or the second disc, and multiple ridges arranged circumferentially machined on the inner surfaces of the first disc and / or the second disc. The first and second disks are coaxially stacked, forming a radially extending cooling channel with a gradually increasing cross-sectional area between adjacent ridges. The first and second disks are then welded and fixed to obtain a disk base. Multiple outlets are machined on the mounting base, and multiple cutting heads are sequentially assembled on the outer peripheral surface of the mounting base, with the outlets positioned between two adjacent cutting heads; The mounting base is welded or cryogenically interference-fitted to the disc base to connect the outlet with the cooling channel.

[0016] A saw blade processing method according to an embodiment of this application has at least the following beneficial effects: The processing method of this application embodiment is used to process the saw blade in the above embodiment. It allows the cutter head, the first disc body, and the second disc body to be designed and processed independently, and then the parts are connected and assembled into a complete saw blade through the mounting base, so as to realize the modular design of the saw blade.

[0017] According to some embodiments of this application, the welding and fixing of the first disk body and the second disk body to obtain the disk base specifically includes the following steps: The contact surfaces of the spine and the opposite disk are fully welded by high-frequency induction welding, so that the first disk and the second disk are fixedly connected to obtain the disk base.

[0018] According to some embodiments of this application, machining multiple outlets on the mounting base and sequentially assembling multiple cutting heads onto the outer peripheral surface of the mounting base includes the following steps: Multiple outlets and multiple mounting slots are machined on the mounting base; Multiple cutting heads are sequentially fixed to the mounting slot by laser welding or cryogenic interference fitting. Attached Figure Description

[0019] The accompanying drawings are used to provide a further understanding of the technical solutions disclosed in this application and form part of the specification. They are used together with the embodiments disclosed in this application to explain the technical solutions of this application and do not constitute a limitation on the technical solutions disclosed in this application.

[0020] Figure 1 This is a schematic diagram of the saw blade structure in an embodiment of this application; Figure 2 This is a cross-sectional view of the saw blade in an embodiment of this application; Figure 3 for Figure 2 Enlarged view of detail A in the middle; Figure 4 This is an exploded view of the first disk and the second disk in the embodiments of this application; Figure 5 This is a schematic diagram of the mounting base in an embodiment of this application; Figure 6 for Figure 5 A magnified view of detail B in the middle; Figure 7 This is a schematic diagram of the cutter head structure in an embodiment of this application; Figure 8 This is a flowchart of the saw blade processing method in the embodiments of this application.

[0021] Reference numerals: 100, disc base; 110, first disc body; 111, spine; 112, first through hole; 120, second disc body; 121, second through hole; 122, first alignment groove; 130, mounting base; 131, mounting groove; 132, third through hole; 133, second alignment groove; 200, cutter head; 210, cutter holder; 220, cutter head body; 220a, cutting surface; 220b, side surface; 221, guide groove. Detailed Implementation

[0022] The following specific embodiments will further illustrate the content of this application in detail.

[0023] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0024] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0025] In the description of this application, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0026] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0027] In the description of this application, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0028] like Figures 1 to 7 As shown, a saw blade according to a first aspect embodiment of this application includes: The disk base 100 includes multiple cooling channels, an inlet, and an outlet. The cooling channels are located inside the disk base 100 and are distributed circumferentially along the disk base 100. The cooling channels also extend radially along the disk base 100. Each inlet is connected to a cooling channel and is located on the end face of the disk base 100 for the entry of cooling medium. Each outlet is connected to a cooling channel and is located on the outer circumferential surface of the disk base 100 for the exit of cooling medium. The cross-sectional area of ​​each cooling channel perpendicular to the direction of cooling medium flow gradually increases from the inlet to the outlet. Cutting head 200, multiple cutting heads 200 are fixedly connected to the outer periphery of the disc base 100.

[0029] The saw blade provided in this embodiment has multiple cooling channels distributed circumferentially and extending radially inside its disc base 100. When the saw blade rotates at high speed, a negative pressure is generated at the inlet of the end face of the disc base 100, actively drawing external cooling medium into the cooling channels. As the cross-sectional area of ​​the cooling channels gradually increases from the inlet to the outlet, the flow velocity of the cooling medium in the cooling channels changes. In the inlet region with a smaller cross-sectional area, the cooling medium has a higher flow velocity and obtains a larger dynamic pressure, accelerating the cooling medium into the cooling channels and causing it to actively flow from the inlet to the outlet.

[0030] Since the outlet is located on the outer circumferential surface of the disc base 100, and multiple cutting heads 200 are fixedly connected to the outer circumference of the disc base 100, the cooling medium flows out of the outlet and directly acts on the cutting area of ​​the cutting head 200, effectively dissipating heat from the cutting head 200. Simultaneously, the cooling medium carries away the chips generated by the cutting head 200 during discharge, further improving chip removal efficiency. It should also be noted that the cooling medium in this embodiment includes, but is not limited to, coolant or air.

[0031] In some embodiments, the cutter head 200 is integrally cut from high manganese steel using laser cutting, and a guide groove 221 is engraved on the cutter head 200 using a laser engraving machine, followed by diamond electroplating on the surface of the cutter head 200. In other embodiments, the cutter head 200 is integrally formed by grinding, hot pressing, and sintering.

[0032] According to some embodiments of this application, such as Figure 1 , Figure 4 and Figure 5 As shown, the disc base 100 includes a mounting base 130, a first disc body 110 and a second disc body 120 disposed opposite to each other; Mounting base 130 is arranged around the outer periphery of the first disc 110 and the second disc 120. Cooling channels are formed between the first disc 110 and the second disc 120. The inlet is opened on the end face of the first disc 110 and / or the second disc 120, and the outlet is opened on the outer periphery of the mounting base 130. Multiple cutting heads 200 are fixed on the outer periphery of the mounting base 130.

[0033] In this embodiment, as Figure 1 , Figure 4 and Figure 5 As shown, the disc base 100 consists of three independent components: a first disc body 110, a second disc body 120, and a mounting base 130. A cooling channel is formed between the first disc body 110 and the second disc body 120, and the mounting base 130 is used to assemble the cutter head 200. This structure allows the materials of the first disc body 110 and the second disc body 120, the material and shape of the cutter head 200, and the shape of the cooling channel to be designed independently, and then the components are connected and assembled into a complete saw blade through the mounting base 130.

[0034] Specifically, such as Figure 4 As shown, the end faces of the first disc 110 refer to the surfaces at both ends along the axial direction of the first disc 110, and the same applies to the second disc 120. The first disc 110 has multiple first through holes 112, and the second disc 120 has multiple second through holes 121. The first through holes 112 and the second through holes 121 are arranged in a one-to-one correspondence, forming an inlet. For example... Figure 5 and Figure 6 As shown, the mounting base 130 has multiple third through holes 132, which form an outlet.

[0035] According to some embodiments of this application, such as Figure 2 and Figure 4 As shown, a plurality of backing modules are provided between the first disk 110 and the second disk 120, and the plurality of backing modules are distributed along the circumference of the disk base 100; each backing module includes a plurality of backs 111, and the plurality of backs 111 in the same backing module are arranged sequentially along the circumference, and two adjacent backs 111, the first disk 110 and the second disk 120 enclose a cooling channel.

[0036] like Figure 2 As shown, Figure 2 This is a cross-sectional view of the saw blade in an embodiment of this application. Figure 2 Taking a spine module as an example, the arrows indicate the flow direction of the cooling medium in the cooling channel.

[0037] In related technologies, there are many problems with setting up cooling channels inside the saw blade substrate. Most saw blades with internal cooling channels are made of multiple layers of substrate welding. The welding area between the multiple layers of substrate affects the structural strength of the saw blade. In order to ensure the structural strength of the saw blade, such saw blades reduce the volume of the internal cooling channels and increase the material between the multiple layers of substrate to increase the welding area between the multiple layers of substrate, resulting in a larger overall weight of the saw blade and a larger amount of material required.

[0038] Compared to multi-layer substrate saw blades that rely on large-area welding in related technologies, in this embodiment, such as Figure 2 and Figure 4 As shown, the spine 111 serves simultaneously as a partition structure for the cooling channel and a support structure for the first disc 110 and the second disc 120, improving the rigidity of the disc base 100 and reducing its deformation during high-speed rotation. While ensuring the structural strength of the disc base 100, the spine 111 eliminates the need for adding a large amount of solid material to increase the welding area, thereby reducing the overall weight of the saw blade and lowering material consumption.

[0039] According to some embodiments of this application, such as Figure 2 and Figure 4As shown, multiple spine modules are evenly distributed along the circumference of the disk base 100, and multiple spines 111 within the same spine module are arranged at equal angles along the circumference of the disk base 100.

[0040] The above configuration ensures that multiple cooling channels are evenly distributed around the circumference of the disc base 100, which is conducive to the orderly diversion of the cooling medium into multiple cooling channels, reduces the irregular flow of the cooling medium, and supplies a uniform cooling medium to each cutter head 200 when the saw blade rotates.

[0041] According to some embodiments of this application, such as Figure 2 and Figure 4 As shown, within the same spine module, multiple spines 111 extend radially inward from the periphery of the first disc 110 and / or the second disc 120, and the lengths of the spines 111 arranged circumferentially decrease sequentially.

[0042] Multiple ridges 111 are arranged to extend radially along the disk base 100, so that a straight cooling channel is formed between adjacent ridges 111, which forces the cooling medium to flow in an orderly manner along the radial direction of the disk base 100, avoids the formation of irregular vortices and backflow of the cooling medium on the disk base 100, and reduces turbulence noise caused by cooling medium separation.

[0043] like Figure 2 As shown, the spine 111 extends radially inward from the periphery of the first disk 110. The spine 111 is provided near the periphery of the disk base 100, which can uniformly guide the cooling medium to flow out.

[0044] Furthermore, such as Figure 2 As shown, the arrows indicate the flow trajectory of the cooling medium. The lengths of the circumferentially arranged ridges 111 decrease sequentially. The cooling medium is not only drawn in from the position near the center of the disk base 100, but can also enter the cooling channels from multiple radial positions corresponding to the ridges 111 of different lengths. Near the center of the disk base 100, the circumferential spacing between the ridges 111 is narrower, resulting in a relatively smaller flow rate and higher velocity of the cooling medium, making it less prone to stagnation. As the length of the ridges 111 decreases, the ridges 111 closer to the periphery of the disk base 100 also provide additional cooling channels for the cooling medium, making the distribution of the cooling medium more uniform throughout the disk base 100.

[0045] According to some embodiments of this application, multiple inlets are staggered on the end face of the disk substrate 100.

[0046] As an example, such as Figure 4 As shown, the first through hole 112 on the first disk 110 and the second through hole 121 on the second disk 120 are correspondingly provided. Figure 2As shown, the distribution of the inlet is illustrated by taking the distribution of the first through hole 112 on the first disc body 110 as an example. The first through hole 112 corresponds one-to-one with the spine 111. The first through hole 112 corresponding to the spine 111 in the same spine module is arranged in an arc shape from the inside to the outside. Multiple first through holes 112 are distributed at equal angles in the circumference of the first disc body 110 and are located at different radial positions on the first disc body 110. This enables multiple inlets to be radially staggered on the end face of the disc base 100. The staggered inlet design ensures the torsional strength and shear strength of the disc base 100 in a unit cross section, further improving the structural strength of the saw blade.

[0047] According to some embodiments of this application, the inlet and the corresponding spine 111 are arranged in a one-to-one correspondence, and the inlet and the corresponding spine 111 are arranged radially spaced apart.

[0048] Specifically, the radial spacing between different inlets and their corresponding ridges 111 is equal, such as... Figure 2 As shown, with Figure 2 For example, the inlet corresponds to the first through hole 112. The cooling medium is drawn in from the first through hole 112. Since there are multiple ridges 111 distributed along the circumference of the first disk body 110, each first through hole 112 can distribute the cooling medium to two adjacent cooling channels, making the distribution of the cooling medium in the entire disk base 100 more uniform.

[0049] According to some embodiments of this application, multiple outlets are distributed circumferentially along the disk base 100, and the outlets are located between two adjacent cutter heads 200.

[0050] like Figure 2 and Figure 3 As shown, the mounting base 130 has multiple third through holes 132, which constitute outlets. The distribution of the outlets is illustrated using the third through hole 132 as an example. Figure 7 This paper shows a schematic diagram of the structure of the cutter head 200 in an embodiment of this application. Figure 7 The cutting head 200 has a cutting surface 220a and a side surface 220b adjacent to the cutting surface 220a, such as... Figure 3 As shown, the third through hole 132 and the cutting head 200 are arranged alternately. When the cooling medium flows out from the third through hole 132 located between adjacent cutting heads 200, it can directly act on the side 220b and cutting surface 220a of the cutting head 200, carrying away the heat accumulated at the cutting head 200 and preventing the material strength of the cutting head 200 from decreasing due to local high temperature. The cooling medium flowing out from the third through hole 132 can also blow away or wash away the chips generated during the cutting process from the gap between the cutting heads 200, improving the chip removal effect while achieving heat dissipation.

[0051] According to some embodiments of this application, the cutter head 200 has a cutting surface 220a and a side surface 220b connected to the cutting surface 220a. The cutting surface 220a is used to contact and cut the workpiece. The side surface 220b faces the adjacent cutter head 200. The cutter head 200 is provided with a guide groove 221, which is formed on the side surface 220b and / or the cutting surface 220a.

[0052] like Figure 7 As shown, in this embodiment, a guide groove 221 is formed on the side surface 220b and the cutting surface 220a of the cutter head 200, and the guide groove 221 extends continuously on the side surface 220b and the cutting surface 220a of the cutter head 200. The guide groove 221 guides the cooling medium flowing from the outlet between adjacent cutter heads 200 to the cutting surface 220a, allowing the cooling medium to directly act on the cutting area. The cooling medium carries away the heat generated by friction at the cutting surface 220a, reducing the operating temperature of the cutter head 200. The cooling medium guided by the guide groove 221 flushes the chips generated at the cutting surface 220a along the groove, preventing chip accumulation in the cutting area, reducing secondary wear, thereby improving cutting efficiency and the service life of the cutter head 200.

[0053] According to some embodiments of this application, the mounting base 130, the first disc 110, and the second disc 120 are integrally formed; Alternatively, the first disc 110 and the second disc 120 are fixedly connected by welding, and the mounting base 130 is welded or freeze-fitted to the first disc 110 and the second disc 120.

[0054] As an example, the first disc 110 and the second disc 120 are fixedly connected by welding, and the mounting base 130 is cryogenically interference-fitted to the first disc 110 and the second disc 120. Specifically, the cryogenic interference fit involves heating the mounting base 130 to expand its dimensions, immersing the first disc 110 and the second disc 120 in a cryogenic medium to shrink their dimensions, and after the first disc 110, the second disc 120, and the mounting base 130 are aligned and assembled, the temperature is restored to room temperature, and the first disc 110, the second disc 120, and the mounting base 130 return to their original dimensions, thus achieving the interference fit. Compared to welding, cryogenic interference fit reduces damage to components, and the resulting disc base 100 achieves the same structural strength as laser welding.

[0055] In this embodiment, each part of the disc base 100 can be independently modularly designed, and the mounting base 130, the first disc 110 and the second disc 120 are further modularly assembled through cryogenic interference fitting.

[0056] According to some embodiments of this application, such as Figure 3 , Figure 5 and Figure 6As shown, the mounting base 130 has multiple mounting slots 131 along the circumference, and the cutting head 200 corresponds to each mounting slot 131. The cutting head 200 is assembled in the mounting slot 131.

[0057] In this embodiment, as Figure 7 As shown, the cutter head 200 includes a cutter head body 220 and a cutter holder 210, which are integrally formed. The cutter holder 210 is assembled in the mounting groove 131, and the cutter head body 220 extends out of the mounting seat 130 for cutting the workpiece.

[0058] like Figure 1 and Figure 3 As shown, in this embodiment, the cutter head 200, the first disc 110, and the second disc 120 are connected by the mounting base 130, allowing the cutter head 200, the first disc 110, and the second disc 120 to be designed and manufactured independently, and then the parts are connected and assembled into a complete saw blade through the mounting base 130, realizing the modular design of the saw blade.

[0059] According to some embodiments of this application, such as Figure 3 , Figure 5 and Figure 6 As shown, the cutter head 200 is welded or cryogenically interference-fitted into the mounting slot 131.

[0060] Specifically, cryogenic interference fit involves immersing the saw head 200 in a cryogenic medium such as liquid nitrogen to shrink its dimensions, then inserting it into the room-temperature mounting groove 131 and allowing it to expand upon rewarming, thus forming a tight interference fit with the mounting groove 131. This process avoids thermal damage to the diamond particles on the surface of the saw head 200 caused by the high temperatures of welding, and the saw head 200 can be disassembled and replaced by heating the mounting groove 131 after wear, reducing the cost of saw blade use.

[0061] According to some embodiments of this application, the first disc body 110 and / or the second disc body 120 are provided with a first alignment groove 122, and the mounting base 130 is provided with a second alignment groove 133. The first alignment groove 122 and the second alignment groove 133 are correspondingly provided, and the first alignment groove 122 and the second alignment groove 133 are used to assist the mounting base 130, the first disc body 110 and the second disc body 120 in alignment during assembly.

[0062] like Figures 1 to 8 As shown, a saw blade processing method according to a second aspect embodiment of this application includes the following steps: S100 provides a first disc 110 and a second disc 120, with multiple inlets machined on the end faces of the first disc 110 and / or the second disc 120, and multiple circumferentially arranged ridges 111 machined on the inner surfaces of the first disc 110 and / or the second disc 120.

[0063] Specifically, step S100 includes the following steps: S110 provides a first disc body 110, which is integrally formed by a CNC machining center. Multiple circumferentially arranged ridges 111 are machined on the inner surface of the first disc body 110, and multiple inlets and first alignment grooves 122 are machined on the end face of the first disc body 110.

[0064] Specifically, in step S110, the CNC machining center, also known as CNC machining or numerical control machine tool, is a precision machining technology. CNC machining centers mainly include equipment such as lathes or milling machines, suitable for the integral forming machining of the first disc 110, offering stable machining quality and high precision. As an example, the first disc 110 is integrally formed using a milling process, machining the outer contour of the first disc 110, multiple ridges 111, multiple inlets, and the first alignment groove 122.

[0065] S120 provides a second disc 120, which is cut and processed using laser cutting technology, and multiple inlets and a first alignment groove 122 are processed on the end face of the second disc 120.

[0066] Specifically, in step S120, the outer contour of the second disk 120 is formed by laser cutting process, and multiple inlets and first alignment grooves 122 are formed on the second disk 120 by laser cutting. The inlets on the second disk 120 correspond one-to-one with the inlets on the first disk 110.

[0067] S200, the first disk 110 and the second disk 120 are coaxially stacked, and a cooling channel with a radial extension and gradually increasing cross-sectional area is formed between adjacent backs 111. The first disk 110 and the second disk 120 are welded and fixed to obtain the disk base 100.

[0068] Specifically, step S200 includes the following steps: S210, based on the position of the first alignment groove 122 on the first disc 110 and the second disc 120, the first disc 110 and the second disc 120 are clamped by the positioning fixture, and the first disc 110 and the second disc 120 are positioned and stacked to fix the relative position of the first disc 110 and the second disc 120. S220, weld and fix the first disk body 110 and the second disk body 120 to obtain the disk base 100.

[0069] S300, multiple outlets are machined on the mounting base 130, multiple cutter heads 200 are sequentially assembled on the outer peripheral surface of the mounting base 130, and the outlets are set between two adjacent cutter heads 200.

[0070] S400, the mounting base 130 is welded or frozen and interference-fitted to the disc base 100 so that the outlet is connected to the cooling channel.

[0071] Specifically, cryogenic interference fit refers to heating the mounting base 130 to expand its dimensions, immersing the disk base 100 in a cryogenic medium to shrink its dimensions, and then aligning and assembling the disk base 100 and the mounting base 130. After the temperature is restored to room temperature, the disk base 100 and the mounting base 130 return to their original dimensions, thus achieving interference fit. Compared to welding, cryogenic interference fit reduces damage to components, and the assembled disk base 100 achieves the same structural strength as laser welding.

[0072] The processing method of this application embodiment is used to process the saw blade in the above embodiment. It allows the cutter head 200, the first disc 110, and the second disc 120 to be designed and processed independently, and then the parts are connected and assembled into a complete saw blade through the mounting base 130, so as to realize the modular design of the saw blade.

[0073] According to some embodiments of this application, step S220, welding and fixing the first disk body 110 and the second disk body 120 to obtain the disk base 100, specifically includes the following steps: The contact surfaces of the spine 111 and the opposite disk are fully welded by high-frequency induction welding process, so that the first disk 110 and the second disk 120 are fixedly connected to obtain the disk base 100.

[0074] It is understood that in this embodiment, the spine 111 is disposed on the first disk 110, and the disk opposite to the spine 111 is the second disk 120, that is, the contact surface between the spine 111 and the second disk 120 is fully welded.

[0075] High-frequency induction welding is a welding method that uses the principle of electromagnetic induction heating to connect metal materials. This process, combined with appropriate fixtures to apply axial pressure, enables the spine 111 and the second disc 120 to achieve high-strength full welding.

[0076] The spine 111 serves as a support structure for the first disc 110 and the second disc 120. By fully welding the contact surfaces of the spine 111 to the opposing discs, the welding area is increased, improving the rigidity of the disc base 100 and reducing its deformation during high-speed rotation. While ensuring the structural strength of the disc base 100, it eliminates the need to add a large amount of solid material to expand the welding area, thereby reducing the overall weight of the saw blade and lowering material consumption.

[0077] According to some embodiments of this application, step S300 involves machining multiple outlets on the mounting base 130 and sequentially assembling multiple cutting heads 200 onto the outer peripheral surface of the mounting base 130, including the following steps: S310, multiple outlets and multiple mounting slots 131 are machined on the mounting base 130.

[0078] Specifically, in step S310, the mounting base 130 is processed with multiple outlets and multiple mounting slots 131 by laser cutting.

[0079] S320, multiple cutter heads 200 are sequentially fixed to the mounting slot 131 by laser welding or cryogenic interference fitting.

[0080] In this embodiment, the cutter head 200 and the mounting groove 131 are assembled by cryogenic interference fit, which enables the replacement of the cutter head 200 and realizes the modular design of the saw blade.

[0081] The above embodiments are preferred embodiments of this application, but the implementation of this application is not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of this application shall be considered equivalent substitutions and shall be included within the protection scope of this application.

Claims

1. A saw blade, characterized in that, include: A disc-shaped substrate includes multiple cooling channels, an inlet, and an outlet. The cooling channels are disposed inside the disc-shaped substrate and are distributed circumferentially and radially. Each inlet corresponds to and communicates with a cooling channel, and is located on the end face of the disc-shaped substrate for the entry of cooling medium. Each outlet corresponds to and communicates with a cooling channel, and is located on the outer circumferential surface of the disc-shaped substrate for the exit of cooling medium. The cross-sectional area of ​​each cooling channel perpendicular to the direction of cooling medium flow gradually increases from the inlet to the outlet. Cutting heads, a plurality of the cutting heads are connected to the outer periphery of the disk base.

2. The saw blade according to claim 1, characterized in that, The multiple inlets are staggered on the axial end face of the disk substrate.

3. The saw blade according to claim 1, characterized in that, The plurality of outlets are distributed circumferentially along the disk base, and the outlets are disposed between two adjacent cutter heads.

4. The saw blade according to claim 3, characterized in that, The cutting head has a cutting surface and a side surface connected to the cutting surface. The cutting surface is used to contact and cut the workpiece. The side surface faces the adjacent cutting head. The cutting head has a guide groove, which is formed on the side surface and / or the cutting surface.

5. The saw blade according to claim 1, characterized in that, The disc base includes a mounting base and a first disc body and a second disc body disposed opposite to each other; The mounting base is disposed around the outer periphery of the first disc and the second disc, the cooling channel is formed between the first disc and the second disc, the inlet is opened on the end face of the first disc and / or the second disc, the outlet is opened on the outer peripheral surface of the mounting base, and the plurality of cutting heads are fixed on the outer peripheral surface of the mounting base.

6. The saw blade according to claim 5, characterized in that, Multiple backing modules are provided between the first disk and the second disk, and the multiple backing modules are distributed circumferentially along the disk base; each backing module includes multiple backs, and the multiple backs in the same backing module are arranged sequentially circumferentially, and two adjacent backs, the first disk and the second disk enclose the cooling channel.

7. The saw blade according to claim 6, characterized in that, Within the same spine module, multiple spines extend radially inward from the periphery of the first disc and / or the second disc, with the lengths of the circumferentially arranged spines decreasing sequentially.

8. A method for processing a saw blade, characterized in that, Including the following steps: A first disc body and a second disc body are provided, and a plurality of inlets are machined on the end faces of the first disc body and / or the second disc body, and a plurality of circumferentially arranged ridges are machined on the end faces of the first disc body and / or the second disc body. The first disk and the second disk are coaxially stacked, and a cooling channel with a radially extending cross-sectional area gradually increases is formed between adjacent spines. The first disk and the second disk are welded and fixed to obtain a disk base. Multiple outlets are machined on the mounting base, and multiple cutting heads are sequentially assembled onto the outer peripheral surface of the mounting base, with the outlets positioned between two adjacent cutting heads; The mounting base is welded or cryogenically interference-fitted to the disc base so that the outlet is connected to the cooling channel.

9. The processing method according to claim 8, characterized in that, The welding and fixing of the first disk body and the second disk body to obtain the disk base body specifically includes the following steps: The contact surfaces of the spine and the opposite disk are fully welded by high-frequency induction welding, so that the first disk and the second disk are fixedly connected to obtain the disk base.

10. The processing method according to claim 8, characterized in that, The process of machining multiple outlets on the mounting base and sequentially assembling multiple cutting heads onto the outer peripheral surface of the mounting base includes the following steps: Multiple outlets and multiple mounting slots are machined on the mounting base; Multiple cutting heads are sequentially fixed to the mounting slot by laser welding or cryogenic interference fitting.

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