Tool bit cladded with diamond particles and diamond saw chain

Abstract

The utility model discloses a tool bit cladded with diamond particles and a diamond saw chain. The tool bit cladded with the diamond particles comprises a base body and a diamond particle cladding layer, the base body comprises two side walls and a top wall connected with the two side walls; the two side walls are symmetrically arranged in parallel, the bottoms of the two side walls are used for being welded to the tops of two opposite connecting pieces of the diamond saw chain correspondingly, and welding seams are formed in the welding positions. The upper surface of the top wall is arc-shaped in the width direction and is in smooth transition to the outer surfaces of the two side walls, so that the cross section of the base body in the width direction is n-shaped; the upper surface of the top wall is in an upwards arched arc shape in the length direction; the diamond particle cladding layer is coated on the upper surface of the top wall; the method has the advantages that the diamond particle cladding layer is not easy to crack and fall off, the stress is uniform and smooth during saw cutting, the saw gap width is ensured, the saw cutting surface is straighter, the substrate production efficiency is high, and the process is simple.

Description

Technical Field

[0001] The utility model relates to a cutting tool, in particular to a diamond saw chain, the cutter head of which is coated with diamond particles and can be used for sawing thin iron sheets, cast iron pipes and other materials. Background Art

[0002] With the expansion of the application scope of oil saws and electric chain saws, more and more occasions require the use of sawing chains for sawing thin iron sheets, cast iron pipes, etc. The key component of the sawing chain is the cutter head with diamond particles clad on the surface. Therefore, the mechanical strength of the cutter head substrate as a carrier of diamond particles is particularly important.

[0003] For example, the utility model patent with authorization announcement number CN214293807U discloses a diamond saw chain for stone cutting, whose diamond cutter head includes an L-shaped cutter head body, the L-shaped cutter head body and the side chain piece are stamped into one piece, and the outer side surface of the L-shaped cutter head body protrudes from the plane where the side chain piece is located, and the connection between the L-shaped cutter head body and the side chain piece is an arc transition connection, and the L-shaped cutter head body is formed by coating a diamond coating.

[0004] For another example, the utility model patent with authorization announcement number CN219902768U discloses a diamond serrated blade, in which the upper part of the blade body 11 is bent to form a "7" shape, and diamonds 12 protruding outward are provided on the outer surfaces of the upper and lower parts of the "7" shape, and the front and rear ends of the upper part are arranged in arcs, so that the upper and lower parts of the "7" shape together form a cutting surface.

[0005] There are two main types of cutter head substrates for diamond saw chains currently available on the market. One is machined by turning and grinding and then cladding with diamond particles. The production process is complex, and the material and production costs are relatively high. The other is the aforementioned "7"-shaped or inverted L-shaped substrate, on the upper surface of which diamond particles are clad. This type of cutter head is prone to problems such as cutter head vibration and saw jamming due to the lateral unilateral force during use. Utility Model Content

[0006] Based on the fact that the existing diamond saw chain cutter head production process is complex and costly, and the inverted L-shaped substrate is prone to cutter head vibration and saw jamming, the technical problem to be solved by the utility model is to provide a cutter head and a diamond saw chain coated with diamond particles, using a new closed cutter head substrate to coat the diamond particles, thereby reducing costs, ensuring uniform force, and preventing damage.

[0007] The technical solution adopted by the utility model to solve the above technical problems is: a cutter head coated with diamond particles comprises a substrate and a diamond particle coating layer;

[0008] The base body comprises two side walls and a top wall connecting the two side walls;

[0009] The two side walls are arranged in parallel and symmetrically, and the bottoms of the two side walls are respectively used to be welded to the tops of two opposite connecting pieces of the diamond saw chain, and welding seams are formed at the welding places;

[0010] The upper surface of the top wall is arc-shaped in the width direction and smoothly transitions to the outer surfaces of the two side walls, so that the cross-section of the base in the width direction is n-shaped; the upper surface of the top wall is arc-shaped and arches upward in the length direction;

[0011] The diamond particle cladding layer is coated on the upper surface of the top wall.

[0012] The preferred technical solution adopted by the utility model to solve the above technical problems is:

[0013] The base is formed by integral stamping using the same material as the diamond saw chain.

[0014] The preferred technical solution adopted by the utility model to solve the above technical problems is:

[0015] The bottoms of the two side walls of the base are straight and flush with each other.

[0016] The preferred technical solution adopted by the utility model to solve the above technical problems is:

[0017] The diamond particle cladding layer extends from the upper surface of the top wall along the width direction to the upper ends of the outer surfaces of the two side walls, and extends along the length direction to the upper ends of the two substrate end surfaces of the substrate.

[0018] Another technical solution adopted by the utility model to solve the above technical problems is: a cutter head coated with diamond particles comprises a substrate and a diamond particle coating layer;

[0019] The base is formed by integral stamping using the same material as the diamond saw chain, and comprises two side walls and a top wall connecting the two side walls;

[0020] The two side walls are arranged in parallel and symmetrically, and the bottoms of the two side walls are respectively used for welding with the tops of two opposite connecting pieces of the diamond saw chain, and welding seams are formed at the welding places;

[0021] The upper surface of the top wall is arc-shaped in the width direction and smoothly transitions to the outer surfaces of the two side walls, so that the cross-section of the base in the width direction is n-shaped; the upper surface of the top wall is arc-shaped and arches upward in the length direction;

[0022] The diamond particle cladding layer is coated on the upper surface of the top wall.

[0023] Another technical solution adopted by the utility model to solve the above technical problem is preferably: the bottoms of the two side walls of the base are straight and flush with each other; the two base end faces of the base are vertical planes and are symmetrical and parallel to each other.

[0024] Another technical solution adopted by the utility model to solve the above technical problem is preferably: the diamond particle cladding layer extends from the upper surface of the top wall along the width direction to the upper ends of the outer surfaces of the two side walls, and extends along the length direction to the upper ends of the two substrate end surfaces of the substrate.

[0025] Another technical solution adopted by the utility model to solve the above technical problems is: a cutter head coated with diamond particles comprises a substrate and a diamond particle coating layer;

[0026] The base body comprises two side walls and a top wall connecting the two side walls;

[0027] The two side walls are arranged in parallel and symmetrically, and the bottoms of the two side walls are respectively used for welding with the tops of two opposite connecting pieces of the diamond saw chain, and welding seams are formed at the welding places;

[0028] The upper surface of the top wall is arc-shaped in the width direction and smoothly transitions to the outer surfaces of the two side walls, so that the cross-section of the base in the width direction is n-shaped; the upper surface of the top wall is arc-shaped and arches upward in the length direction;

[0029] The diamond particle cladding layer covers the upper surface of the top wall and extends from the upper surface of the top wall along the width direction to the upper ends of the outer surfaces of the two side walls.

[0030] Another technical solution adopted by the utility model to solve the above technical problem is preferably: the base body is integrally stamped and formed by using the same material as the diamond saw chain.

[0031] Another technical solution adopted by the utility model to solve the above technical problems is preferably: the bottoms of the two side walls of the substrate are straight and flush with each other; the two substrate end faces of the substrate are vertical planes and symmetrically parallel to each other; the diamond particle cladding layer extends from the upper surface of the top wall along the length direction to the upper ends of the two substrate end faces of the substrate.

[0032] Another technical solution adopted by the utility model to solve the above technical problems is: a diamond saw chain, characterized in that it includes a plurality of transmission plates, a plurality of connecting plates and a plurality of cutter heads coated with diamond particles;

[0033] The bottoms of the two side walls of one of the base bodies are respectively welded to the tops of the two opposite connecting plates to form a sawing unit; a plurality of the transmission plates and a plurality of the sawing units are sequentially connected end to end at intervals to form the diamond saw chain in series;

[0034] The transmission sheet is clamped between two opposite connecting sheets of the sawing unit and fixed by riveting with a chain shaft.

[0035] Another technical solution adopted by the utility model to solve the above technical problem is preferably: the tops of the two opposite connecting plates of the sawing unit are straight and flush with each other; the middle guide teeth of the transmission plate and the cutter head coated with diamond particles are arranged on the same side of the diamond saw chain.

[0036] Compared with the prior art, the utility model has the following advantages: the cutter head and diamond saw chain coated with diamond particles provided by the utility model can saw thin iron sheets, cast iron pipes and other materials; the base body is in an arc shape that is arched upward in both width and length directions, and is welded on both sides to two opposite connecting plates; on the one hand, there are no edges and corners at the intersection of the base planes, the diamond particle coating layer is not easy to break and fall off, and the mechanical strength is high; on the other hand, the double-sided welding realizes uniform force during sawing, and the sawing and chip removal are smoother, while ensuring the saw seam width, making the sawing surface straighter.

[0037] Furthermore, the base is integrally stamped and formed, the process is simple, and the production efficiency is high, which overcomes the disadvantage that the mechanical processing method in the prior art requires multiple machining to ensure the shape and size, the production efficiency is doubled, and the cost is correspondingly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The present invention will be described in further detail below in conjunction with the accompanying drawings and preferred embodiments, but those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be used as a limitation on the scope of the present invention. In addition, unless otherwise specified, the drawings are only schematically representing the composition or structure of the described object and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0039] Figure 1 This is a partial structural schematic diagram of a diamond saw chain according to a preferred embodiment of the utility model;

[0040] Figure 2 This is a schematic diagram of the structure of a transmission plate of a preferred embodiment of the utility model;

[0041] Figure 3 This is a schematic structural diagram of a connecting piece of a preferred embodiment of the utility model;

[0042] Figure 4The structure of a cutter head coated with diamond particles in a preferred embodiment of the utility model is shown in FIG. Figure 1 ;

[0043] Figure 5 The structure of the base of a preferred embodiment of the utility model is shown in FIG. Figure 1 ;

[0044] Figure 6 The structure of the base of a preferred embodiment of the utility model is shown in FIG. Figure 2 ;

[0045] Figure 7 The structure of a cutter head coated with diamond particles in a preferred embodiment of the utility model is shown in FIG. Figure 2 ;

[0046] Figure 8 A cross-sectional view of a tool head clad with diamond particles according to a preferred embodiment of the utility model;

[0047] Description of reference numerals:

[0048] Diamond saw chain 200, transmission plate 210, middle guide tooth 211, connecting plate 220, sawing unit 230, chain shaft 240, welding seam 250, cutter head 100 coated with diamond particles, substrate 10, diamond particle coating layer 20, side wall 11, top wall 12, substrate end face 13. DETAILED DESCRIPTION

[0049] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It will be appreciated by those skilled in the art that these descriptions are merely illustrative and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0050] In the description of the present utility model, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or the directions or positional relationships in which the utility model product is usually placed when in use, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. "First" and "second" are only for the purpose of making the description easier to understand, without any other directional meaning, and cannot be used as a limitation on the present utility model.

[0051] like Figures 1 to 3The diamond saw chain 200 provided in this embodiment is shown, including a plurality of transmission plates 210, a plurality of connecting plates 220 and a plurality of cutter heads 100 coated with diamond particles. A cutter head 100 coated with diamond particles and two opposite connecting plates 220 form a sawing unit 230. The plurality of transmission plates 210 and the plurality of sawing units 230 are sequentially connected end to end at intervals to form a diamond saw chain 200.

[0052] like Figures 4 to 8 As shown, the cutter head 100 coated with diamond particles provided in this embodiment includes a substrate 10 and a diamond particle coating layer 20. The substrate 10 includes two side walls 11 and a top wall 12 connecting the two side walls 11. The two side walls 11 are arranged in parallel and symmetrically, and the bottoms of the two side walls 11 are respectively used to weld with the tops of two opposite connecting pieces 220 of the diamond saw chain 200 to form a sawing unit 230, and a welding seam 250 is formed at the welding point.

[0053] like Figure 5 , Figure 6 Combination Figure 8 As shown, the upper surface of the top wall 12 of the substrate 10 is arc-shaped in the width direction and smoothly transitions to the outer surfaces 11 of the two side walls, so that the cross-section of the substrate 10 in the width direction is n-shaped, thereby preventing the generation of sharp edges at the intersection of the planes, resulting in the phenomenon that the diamond particles are not firmly clad and are easy to fall off during use.

[0054] The upper surface of the top wall 12 is in an upwardly arched arc shape in the length direction, that is, the upper surface of the top wall 12 is in an arc-shaped curved surface with a high middle and low ends in the length direction, thereby effectively preventing the diamond particles of the cutter head from breaking or falling off due to the head-on collision between the cutter head and the object being sawed.

[0055] The diamond particle cladding layer 20 is coated on the upper surface of the top wall 12 of the substrate 10, so its shape is consistent with the shape of the upper surface of the top wall 12 of the substrate 10. Therefore, when sawing thin iron sheets, cast iron pipes and other materials, the diamond particle cladding layer 20 is not only not easy to break and fall off, but also has higher structural strength and can ensure the sawing width, making the sawing surface straighter.

[0056] Furthermore, the base 10 is integrally stamped and formed using the same material as the diamond saw chain 200, which has a simple process and high production efficiency. It overcomes the disadvantage of the prior art that multiple machining processes are required to ensure the shape and size, and the production efficiency is doubled and the cost is reduced accordingly.

[0057] like Figure 1 , Figure 3 and Figure 6As shown, the bottoms of the two side walls 11 of the base 10 are straight and flush with each other, the tops of the two opposite connecting pieces 220 of the sawing unit 230 are also straight and flush with each other, the bottoms of the two side walls 11 of the base 10 are respectively welded to the tops of the two opposite connecting pieces 220 in a straight edge manner, and a straight welding seam 250 is formed at the welding point. Compared with the arc surface welding in the prior art, the welding surface is more solid and not easy to break, and the double-sided welding method can be evenly stressed during sawing, making sawing and chip removal smoother. Further, the two base end faces 13 of the base 10 are vertical planes and are symmetrical and parallel to each other.

[0058] like Figure 4 , Figure 7 and Figure 8 As shown, the diamond particle coating layer 20 extends from the upper surface of the top wall 12 of the substrate 10 in the width direction to the upper ends of the outer surfaces of the two side walls 11, and extends in the length direction to the upper ends of the two substrate end faces 13 of the substrate 10, so as to completely cover the top wall 12 of the substrate 10 and ensure the overall strength of the tool head.

[0059] like Figure 1 As shown, the bottoms of the two side walls 11 of the base 10 of a cutter head 100 coated with diamond particles are respectively welded to the tops of two opposite connecting plates 220 to form a sawing unit 230, and a plurality of transmission plates 210 and a plurality of sawing units 230 are sequentially connected end to end at intervals to form a diamond saw chain 200.

[0060] The transmission piece 210 is clamped between two opposite connecting pieces 220 of the sawing unit 230, and the front and rear ends of each transmission piece 210 are respectively inserted between two opposite connecting pieces 220 of two adjacent front and rear sawing units 230, and are riveted and fixed by the chain shaft 240. The middle guide teeth 211 of the transmission piece 210 and the cutter head 100 coated with diamond particles are arranged on the same side of the diamond saw chain 200.

[0061] The diamond particle-coated cutter head 100 and diamond saw chain 200 provided by the utility model can saw thin iron sheets, cast iron pipes and other materials. The base body 10 is in an arc shape that is arched upward in both width and length directions, and is welded on two opposite connecting pieces 220 on both sides. On the one hand, there are no edges and corners at the intersection of the planes of the base body 10, and the diamond particle coating layer 20 is not easy to break and fall off. On the other hand, the double-sided welding realizes uniform force during sawing, and the sawing and chip removal are smoother. At the same time, the sawing seam width is guaranteed, so that the sawing surface is straighter.

[0062] Furthermore, the base body 10 is integrally stamped and formed, which has a simple process and high production efficiency, and overcomes the disadvantage that the mechanical processing method in the prior art requires multiple machining to ensure the shape and size, and the production efficiency is doubled and the cost is correspondingly reduced.

[0063] It should be noted that like reference numerals denote similar items in the following drawings, and thus, once an item is defined in one drawing, it may not be further defined or explained in subsequent drawings.

[0064] The above is an introduction to the diamond-coated cutter head and diamond saw chain provided by the utility model. The principle and implementation method of the utility model are described in this article using specific examples. The description of the above embodiments is only used to help understand the utility model and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A tool head clad with diamond particles, characterized in that: It includes a substrate and a diamond particle cladding layer; The base body comprises two side walls and a top wall connecting the two side walls; The two side walls are arranged in parallel and symmetrically, and the bottoms of the two side walls are respectively used to be welded to the tops of two opposite connecting pieces of the diamond saw chain, and welding seams are formed at the welding places; The upper surface of the top wall is arc-shaped in the width direction and smoothly transitions to the outer surfaces of the two side walls, so that the cross-section of the base in the width direction is n-shaped; the upper surface of the top wall is arc-shaped and arches upward in the length direction; The diamond particle cladding layer is coated on the upper surface of the top wall.

2. The tool head coated with diamond particles according to claim 1, characterized in that: The base is formed by integral stamping using the same material as the diamond saw chain.

3. The tool head coated with diamond particles according to claim 1, characterized in that: The bottoms of the two side walls of the base are straight and flush with each other.

4. The tool head coated with diamond particles according to claim 1, characterized in that: The diamond particle cladding layer extends from the upper surface of the top wall along the width direction to the upper ends of the outer surfaces of the two side walls, and extends along the length direction to the upper ends of the two substrate end surfaces of the substrate.

5. A cutter head coated with diamond particles, characterized in that: It includes a substrate and a diamond particle cladding layer; The base is formed by integral stamping using the same material as the diamond saw chain, and comprises two side walls and a top wall connecting the two side walls; The two side walls are arranged in parallel and symmetrically, and the bottoms of the two side walls are respectively used for welding with the tops of two opposite connecting pieces of the diamond saw chain, and welding seams are formed at the welding places; The upper surface of the top wall is arc-shaped in the width direction and smoothly transitions to the outer surfaces of the two side walls, so that the cross-section of the base in the width direction is n-shaped; the upper surface of the top wall is arc-shaped and arches upward in the length direction; The diamond particle cladding layer is coated on the upper surface of the top wall.

6. The tool head coated with diamond particles according to claim 5, characterized in that: The bottoms of the two side walls of the base are straight and flush with each other; the two base end faces of the base are vertical planes and are symmetrical and parallel to each other.

7. The tool head coated with diamond particles according to claim 5, characterized in that: The diamond particle cladding layer extends from the upper surface of the top wall along the width direction to the upper ends of the outer surfaces of the two side walls, and extends along the length direction to the upper ends of the two substrate end surfaces of the substrate.

8. A tool head clad with diamond particles, characterized in that: It includes a substrate and a diamond particle cladding layer; The base body comprises two side walls and a top wall connecting the two side walls; The two side walls are arranged in parallel and symmetrically, and the bottoms of the two side walls are respectively used for welding with the tops of two opposite connecting pieces of the diamond saw chain, and welding seams are formed at the welding places; The upper surface of the top wall is arc-shaped in the width direction and smoothly transitions to the outer surfaces of the two side walls, so that the cross-section of the base in the width direction is n-shaped; the upper surface of the top wall is arc-shaped and arches upward in the length direction; The diamond particle cladding layer covers the upper surface of the top wall and extends from the upper surface of the top wall along the width direction to the upper ends of the outer surfaces of the two side walls.

9. The tool head coated with diamond particles according to claim 8, characterized in that: The base is formed by integral stamping using the same material as the diamond saw chain.

10. The tool head coated with diamond particles according to claim 8, characterized in that: The bottoms of the two side walls of the substrate are straight and flush with each other; the two substrate end faces of the substrate are vertical planes and symmetrically parallel to each other; the diamond particle cladding layer extends from the upper surface of the top wall along the length direction to the upper ends of the two substrate end faces of the substrate.

11. Diamond saw chain, characterized in that: It comprises a plurality of transmission plates, a plurality of connecting plates and a plurality of cutter heads coated with diamond particles as claimed in any one of claims 1 to 10; The bottoms of the two side walls of one of the base bodies are respectively welded to the tops of the two opposite connecting plates to form a sawing unit; a plurality of the transmission plates and a plurality of the sawing units are sequentially connected end to end at intervals to form the diamond saw chain in series; The transmission sheet is clamped between two opposite connecting sheets of the sawing unit and fixed by riveting with a chain shaft.

12. The diamond saw chain according to claim 11, characterized in that: The tops of the two opposite connecting plates of the sawing unit are straight and flush with each other; the middle guide teeth of the transmission plate and the cutter head coated with diamond particles are arranged on the same side of the diamond saw chain.

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