Composite welding type blade

Abstract

The utility model relates to the technical field of cutters, in particular to a composite welding type blade which comprises a body and a head, a groove is formed in the body, and the head is installed in the groove and welded to the groove. The groove is provided with a groove bottom surface and a groove side surface, the head part is provided with a head part matching bottom surface and a head part matching side surface, the head part matching bottom surface corresponds to the groove bottom surface and is in clearance fit with the groove bottom surface, and the head part matching side surface corresponds to the groove side surface and is in clearance fit with the groove side surface and is filled with welding flux; the groove bottom face and the groove side face are perpendicular to each other, a fillet is formed at the joint of the groove bottom face and the groove side face, the head matching side face is gradually close to the groove side face in the direction away from the fillet, and / or the head matching side face is gradually close to the groove side face in the direction away from the fillet. Therefore, chamfering is not machined on the head, the inclined angle is directly machined on the bottom face or / and the side face, matched with the groove, of the head, it is guaranteed that the sharp corner of the bottom of the head can reach the round corner of the groove, interference is avoided, the machining efficiency is high, and the requirement for workers is low.

Description

Technical Field

[0001] The present application relates to the technical field of cutting tools, and in particular to a composite welded blade. Background Art

[0002] At present, superhard composite welding blades are mainly used for finishing of rollers, mining machinery, large gears, bearings and other industries. Figure 7 As shown, the superhard material composite welding blade includes a body 1' and a head 3'. The body 1' is grooved by a grinding wheel, and there is an R angle 2' at the root. Therefore, the head 3' needs to be manually chamfered, that is, chamfered 4', to avoid the R angle 2' at the root of the groove, and then the two are assembled. However, the superhard material composite welding blade of the above structure has the following problems: the size of the chamfer 4' of the head 3' is not easy to control. When the size of the chamfer 4' is too small, it is easy to cause the root R angle 2' to be unable to be completely avoided, and finally the weld is too large, which leads to a false weld. When the size of the chamfer 4' is too large, the gap with the root of the groove is large after assembly, there is a lot of solder, and the solder shrinks during cooling, and the stress generated is large, which is more likely to cause cracks in the head 3', thereby affecting the service life of the tool; when the head 3' is small, safety accidents are prone to occur during manual chamfering, and the operator's skill level is required to be high; the efficiency of the head chamfer is low, and the labor cost and time cost are high. Utility Model Content

[0003] The purpose of the present application is to provide a composite welded blade, which to a certain extent solves the technical problems existing in the prior art of superhard material composite welded blades, in which the head needs to be manually chamfered in order to avoid the R angle of the groove root on the body, which not only makes the size difficult to control, but also has low processing efficiency, high cost, and is prone to safety accidents.

[0004] The present application provides a composite welding blade, comprising: a body and a head; wherein the body is formed with a groove, and the top and at least one side of the groove are both formed with openings; the head is installed in the groove, and the two are connected by welding;

[0005] The groove has a groove bottom surface and a groove side surface, the head has a head matching bottom surface and a head matching side surface, and the head matching bottom surface corresponds to the groove bottom surface and has a clearance fit, the head matching side surface corresponds to the groove side surface and has a clearance fit, and the gaps are filled with solder;

[0006] The bottom surface of the groove and the side surface of the groove are arranged perpendicularly and a rounded corner is formed at the connection, wherein the head mating side surface is inclined relative to the first height direction of the head on the corresponding side, and along the direction away from the rounded corner, the head mating side surface gradually approaches the groove side surface, and / or, wherein the head mating side surface is inclined relative to the second height direction of the head on the corresponding side, and along the direction away from the rounded corner, the head mating bottom surface gradually approaches the groove bottom surface.

[0007] In the above technical solution, further, the head has a head mating bottom surface and a head mating side surface, and the groove has a groove bottom surface and a groove side surface.

[0008] In any of the above technical solutions, further, the cross-section of the head along its height direction is a triangle; and the cross-section of the groove along its depth direction is a triangle.

[0009] In any of the above technical solutions, further, the main body is formed with a vertex, and the groove is opened at at least one of the vertex corners.

[0010] In any of the above technical solutions, further, the calculation formula of the inclination angle of the head matching side surface or the head matching bottom surface is as follows:

[0011] Among them, R is the radius of the fillet, h is the height of the head along the first height direction or the height of the head along the second height direction, a is the thickness of the solder layer located between the head and the groove and parallel to the bottom surface of the groove or the side surface of the groove, and the units of the three are the same.

[0012] In any of the above technical solutions, further, the height of the head is 1.0-1.6 mm.

[0013] In any of the above technical solutions, further, the thickness of the solder layer is 0.01-0.2 mm.

[0014] In any of the above technical solutions, further, the radius of the fillet is 0.06-0.1 mm.

[0015] In any of the above technical solutions, further, the material of the body is cemented carbide.

[0016] In any of the above technical solutions, further, the head is made of superhard material.

[0017] In any of the above technical solutions, further, the range of θ is 0-15°.

[0018] Compared with the prior art, the beneficial effects of this application are:

[0019] In the composite welded blade provided in the present application, the scheme of processing chamfers on the head is not adopted. Instead, the head bottom surface or / and the head side surface that cooperates with the groove are directly processed with an inclined angle. This can ensure that during assembly, the bottom sharp corner of the head can reach the root of the groove, that is, the rounded corner position, without any interference. In addition, since there is no chamfer on the head, the service life of the head can be extended, the processing efficiency is improved, the requirements for workers' skills are low, and the cost is greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 A schematic diagram of the structure of the head provided in the embodiment of the present application;

[0022] Figure 2 A schematic diagram of the structure of the main body provided in the embodiment of the present application;

[0023] Figure 3 An assembly diagram of the head and body provided for an embodiment of the present application;

[0024] Figure 4 Another assembly diagram of the head and the body provided for an embodiment of the present application;

[0025] Figure 5 Another structural schematic diagram of a head provided in an embodiment of the present application;

[0026] Figure 6 Another assembly diagram of the head and the body provided in the embodiment of the present application;

[0027] Figure 7 It is a structural schematic diagram of the head in the prior art.

[0028] Reference numerals:

[0029] 1'-body, 2'-R corner, 3'-head, 4'-chamfer;

[0030] 1-body, 11-groove, 111-groove bottom, 112-groove side, 2-head, 211-head matching bottom, 212-head matching side, L1-first height direction, L2-second height direction. DETAILED DESCRIPTION

[0031] The technical solution of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0032] The components of the embodiments of the present application generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed, but merely represents the selected embodiments of the present application.

[0033] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of this application.

[0034] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0035] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] Refer to the following Figures 1 to 6 A composite welding blade according to some embodiments of the present application is described.

[0037] Embodiment 1

[0038] See also Figures 1 to 4As shown, an embodiment of the present application provides a composite welding blade, comprising: a body 1 and a head 2; wherein the body 1 is provided with a groove 11, and the cross section of the groove 11 along a direction perpendicular to its depth, i.e., a first depth direction, is triangular, and the groove 11 has a groove bottom surface 111 and a groove side surface 112 arranged perpendicularly to each other, so that the top and the other two sides of the groove 11 are open, and a rounded corner is formed at the connection between the groove bottom surface 111 and the groove side surface 112;

[0039] The cross section of the head 2 along its height direction, i.e., the first height direction L1, is triangular, and has a head matching bottom surface 211, a head matching side surface 212, and two common side elevations, and the two common side elevations are respectively arranged on both sides of the head matching side surface 212;

[0040] The head mating bottom surface 211 corresponds to the groove bottom surface 111 and a gap is set, the head mating side surface 212 corresponds to the groove side surface 112 and a gap is set, and the above two gaps are filled with solder;

[0041] The head matching side surface 212 is inclined relative to the first height direction L1 of the head 2 on the corresponding side, and along the direction away from the fillet, the head matching side surface 212 is gradually arranged close to the groove side surface 112;

[0042] In combination with the above structure, it can be seen that in the composite welded blade provided by the present application, the scheme of processing chamfers on the head 2 is not adopted, but the head matching side 212 of the head 2 that matches the groove side 112 is directly processed with an inclined angle, which can ensure that during assembly, the bottom sharp corner of the head 2 can reach the root of the groove, that is, the rounded corner position, and will not cause any interference. Moreover, since the head 2 has no chamfered edges, there is no welding stress concentration, and the problem of cracks in the blade will not occur. The service life of the head 2 can be extended, the processing efficiency can be improved, the requirements for workers' skills are low, and the cost is greatly reduced.

[0043] Furthermore, preferably, the head 2 is made of a superhard material with high strength and hardness, capable of achieving precision and ultra-precision turning; the body 1 is made of cemented carbide, meeting the strength requirements.

[0044] It should be noted that: the extension direction of the groove bottom 111 is set parallel to the second height direction L2, the extension direction of the groove side 112, the first height direction L1 and the height direction of the main body 1 are all set in parallel, and preferably, when the main body 1 is placed horizontally, that is, the rhombus surface is parallel to the horizontal plane, the groove bottom 111 of the groove 11 and the second height direction L2 of the head 2 are both set along the horizontal direction, and the groove side 112 of the groove 11, the first height direction L1 of the head 2 and the height direction of the main body 1 are all along the vertical direction.

[0045] In this embodiment, preferably, Figures 1 to 3 As shown, the calculation formula of the inclination angle of the head matching side surface 212 is as follows:

[0046] Among them, R is the radius of the fillet, h is the height of the head 2 along the first height direction L1, a is the thickness of the solder layer located between the head 2 and the groove 11 and parallel to the groove side 112, and the units of the three are the same, and preferably, h = 1.6mm, R = 0.06mm, a = 0.02mm.

[0047] Combining the above formulas and data, it can be seen that the head matching side surface 212 is inclined relative to the groove side surface 112, and the angle between the two is

[0048] In this embodiment, preferably, the main body 1 is a prismatic block, and grooves 11 are provided at two vertex corners spaced along the long diagonal line, and a head 2 is installed in each groove 11. It can be seen that the two heads 2 can work alternately, improve work efficiency, and extend the service life of the device.

[0049] Further, preferably, the range of θ is 0-15°.

[0050] It should be noted that the main body 1 is not limited to the above structure, it can also be a rhombus, a cube, a cuboid, or a block structure with a polygonal cross-section such as a triangle, a pentagon, a hexagon, or other irregular shapes, depending on actual needs.

[0051] In addition, the number of heads 2 is not limited to two, but can also be one, three, four, etc., that is, more than two, and the installation position of the head 2 is not limited to the top corner of the main body 1, but can also be installed on the side of the main body 1, etc., depending on actual needs.

[0052] In addition, the shape of the groove 11 is not limited thereto, and can also be designed according to actual needs. For example, in addition to a groove bottom surface 111 and a groove side surface 112, it can also have other side wall surfaces, which can be designed specifically according to actual needs.

[0053] Embodiment 2

[0054] The blade in this embodiment is an improvement on the embodiment 1, and the technical contents disclosed in the embodiment 1 are not described repeatedly, and the contents disclosed in the embodiment 1 also belong to the contents disclosed in this embodiment.

[0055] The difference between the blades provided in this embodiment and in the first embodiment is that: Figures 1 to 3 As shown, h = 1.6mm, R = 0.1mm, through calculation, we know that the angle That is to say, along the direction away from the aforementioned rounded corner, the head mating side surface 212 gradually approaches the groove side surface 112 and is inclined, and the included angle between the two is 2.9°.

[0056] Embodiment 3

[0057] The blade in this embodiment is an improvement on the embodiment 1, and the technical contents disclosed in the embodiment 1 are not described repeatedly, and the contents disclosed in the embodiment 1 also belong to the contents disclosed in this embodiment.

[0058] The difference between the blades provided in this embodiment and in the first embodiment is that: Figures 1 to 3 As shown, h = 1.0mm, R = 0.06mm, through calculation, we know that the angle That is to say, along the direction away from the aforementioned rounded corner, the head mating side surface 212 gradually approaches the groove side surface 112 and is inclined, and the angle between the two is 2.33°.

[0059] Embodiment 4

[0060] The blade in this embodiment is an improvement on the embodiment 1, and the technical contents disclosed in the embodiment 1 are not described repeatedly, and the contents disclosed in the embodiment 1 also belong to the contents disclosed in this embodiment.

[0061] The difference between the blades provided in this embodiment and in the first embodiment is that: Figures 1 to 3 As shown, h = 1.0mm, R = 0.1mm, through calculation, we know that the angle That is to say, along the direction away from the aforementioned rounded corner, the head mating side surface 212 gradually approaches the groove side surface 112 and is inclined, and the angle between the two is 2.33°.

[0062] Embodiment 5

[0063] The blade in this embodiment is an improvement on the embodiment 1, and the technical contents disclosed in the embodiment 1 are not described repeatedly, and the contents disclosed in the embodiment 1 also belong to the contents disclosed in this embodiment.

[0064] The blade provided in this embodiment is different from the blade provided in the first embodiment in that: Figure 5 and Figure 6 As shown, the head mating side surface 212 is inclined relative to the second height direction L2 of the head 2 on the corresponding side, and the head mating bottom surface 211 is gradually arranged close to the groove bottom surface 111 along the direction away from the fillet.

[0065] Further, preferably, the calculation formula of the inclination angle of the head matching bottom surface 211 is as follows:

[0066]

[0067] Among them, R is the radius of the fillet, h is the height of the head 2 along the second height direction L2, a is the thickness of the solder layer located between the head 2 and the groove 11 and parallel to the bottom surface 111 of the groove, and the units of the three are the same. Preferably, h=1.6mm, R=0.06mm, θ=0.02mm.

[0068] Combining the above formula and data, it can be seen that along the direction away from the aforementioned fillet, the head matching bottom surface 211 gradually approaches the groove bottom surface 111 and is inclined, and the angle between the two is

[0069]

[0070] Embodiment 6

[0071] The blade in this embodiment is an improvement on the fifth embodiment, and the technical contents disclosed in the fifth embodiment will not be described repeatedly, and the contents disclosed in the fifth embodiment also belong to the contents disclosed in this embodiment.

[0072] The difference between the blades provided in this embodiment and in the first embodiment is that: Figure 5 and Figure 6 As shown, h = 1.6mm, R = 0.1mm, through calculation, we know that the angle That is to say, along the direction away from the aforementioned rounded corner, the head mating bottom surface 211 gradually approaches the groove bottom surface 111 and is inclined, and the angle between the two is 2.9°.

[0073] Embodiment 7

[0074] The blade in this embodiment is an improvement on the fifth embodiment, and the technical contents disclosed in the fifth embodiment will not be described repeatedly, and the contents disclosed in the fifth embodiment also belong to the contents disclosed in this embodiment.

[0075] The difference between the blades provided in this embodiment and in the first embodiment is that: Figure 5 and Figure 6 As shown, h = 1.0mm, R = 0.06mm, through calculation, we know that the angle That is to say, along the direction away from the aforementioned rounded corner, the head mating bottom surface 211 gradually approaches the groove bottom surface 111 and is inclined, and the angle between the two is 2.33°.

[0076] Embodiment 8

[0077] The blade in this embodiment is an improvement on the fifth embodiment, and the technical contents disclosed in the fifth embodiment will not be described repeatedly, and the contents disclosed in the fifth embodiment also belong to the contents disclosed in this embodiment.

[0078] The difference between the blades provided in this embodiment and in the first embodiment is that: Figure 5 and Figure 6 As shown, h = 1.0mm, R = 0.1mm, through calculation, we know that the angle That is to say, along the direction away from the aforementioned rounded corner, the head mating bottom surface 211 gradually approaches the groove bottom surface 111 and is inclined, and the angle between the two is 2.33°.

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A composite welding blade, characterized in that: include: A body and a head; wherein the body is formed with a groove, and the top and at least one side of the groove are both formed with openings; the head is installed in the groove, and the two are connected by welding; The groove has a groove bottom surface and a groove side surface, the head has a head matching bottom surface and a head matching side surface, and the head matching bottom surface corresponds to the groove bottom surface and has a clearance fit, the head matching side surface corresponds to the groove side surface and has a clearance fit, and the gaps are filled with solder; The bottom surface of the groove and the side surface of the groove are arranged perpendicularly and a rounded corner is formed at the connection, wherein the head mating side surface is inclined relative to the first height direction of the head on the corresponding side, and along the direction away from the rounded corner, the head mating side surface gradually approaches the groove side surface, and / or, wherein the head mating side surface is inclined relative to the second height direction of the head on the corresponding side, and along the direction away from the rounded corner, the head mating bottom surface gradually approaches the groove bottom surface.

2. The composite welding blade according to claim 1, characterized in that: The head has a head mating bottom surface and a head mating side surface, and the groove has a groove bottom surface and a groove side surface.

3. The composite welding blade according to claim 1, characterized in that: The cross section of the head along its height direction is a triangle; the cross section of the groove along its depth direction is a triangle.

4. The composite welding blade according to claim 1, characterized in that: The body is formed with vertex angles, and the groove is formed at at least one of the vertex angles.

5. The composite welding blade according to claim 1, characterized in that: The calculation formula of the inclination angle of the head matching side surface or the head matching bottom surface is as follows: Among them, R is the radius of the fillet, h is the height of the head along the first height direction or the height of the head along the second height direction, a is the thickness of the solder layer located between the head and the groove and parallel to the bottom surface of the groove or the side surface of the groove, and the units of the three are the same.

6. The composite welding blade according to claim 5, characterized in that: The height of the head is 1.0-1.6 mm.

7. The composite welding blade according to claim 5, characterized in that: The thickness of the solder layer is 0.01-0.2 mm.

8. The composite welding blade according to claim 5, characterized in that: The radius of the fillet is 0.06-0.1 mm.

9. The composite welding blade according to claim 5, characterized in that: The range of θ is 0-15°.

10. The composite welding blade according to claim 1, characterized in that: The material of the body is hard alloy.

11. The composite welding blade according to any one of claims 1 to 10, characterized in that: The head is made of superhard material.

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