Circular saw blade with positioning structure

Abstract

The utility model provides a circular saw blade with positioning structures, which comprises a saw blade body provided with an assembling groove, one side of the assembling groove is provided with a first side wall, the other side of the assembling groove is provided with a second side wall, the first side wall and the second side wall are opposite to each other, the first side wall is provided with a first positioning structure, and the second side wall is provided with a second positioning structure; the blade is arranged in the assembling groove, the blade is provided with a first side face and a second side face which are opposite, the first side face is provided with a first corresponding structure, the second side face is provided with a second corresponding structure, the first corresponding structure abuts against the first positioning structure, and the second corresponding structure abuts against the second positioning structure. The saw blade mainly aims to enable the blade to be rapidly and accurately installed on the saw blade body, prolong the service life of the blade and clamp the blade without being pressed by additional screws.

Description

Technical Field

[0001] The utility model relates to the technical field of circular saw blades for metal cutting, in particular to a circular saw blade with a positioning structure. Background Art

[0002] The circular saw blades currently on the market are usually brazed to fix the blade on the saw blade body, and then ground to form the required blade shape, with different tooth shapes and numbers of teeth to meet different cutting requirements.

[0003] Since the current saw blade body lacks a blade positioning design, the blade is not precisely positioned after being welded to the saw blade body, so it must be ground. Because the blade must be ground after welding, the blade before welding is a semi-finished blade (i.e., blade blank) and cannot be used as a finished blade. The main reason is that grinding will destroy the precision or coating of the finished blade, reducing the cutting ability and life of the finished blade.

[0004] In addition, currently, the finished blades used for assembly are all used on turning tools or planing tools. Figure 1A and Figure 1B As shown, since the tool holder 91 of the turning tool 90 is thick and wide, there is enough space to install the screw 92, and the tool holder 91 is clamped by the screw 92 to clamp the finished blade 93, and after clamping, there is no need to grind the finished blade 93. However, the circular saw blade is a deep cutting process, the saw blade body is thin, the space is insufficient, and the finished blade cannot be clamped by screws. Therefore, it is obviously not feasible to apply the structure of the turning tool 90 to position the finished blade 93 on the circular saw blade.

[0005] Therefore, how to develop a circular saw blade with a positioning structure is a technical problem that needs to be overcome urgently. Utility Model Content

[0006] The utility model provides a circular saw blade with a positioning structure, the main purpose of which is to enable the blade to be quickly and accurately installed on the saw blade body.

[0007] Another purpose of the utility model is to increase the service life of the blade.

[0008] Another object of the present invention is to clamp the blade without tightening it with additional screws.

[0009] To achieve the above-mentioned purpose, the utility model provides a circular saw blade with a positioning structure, comprising:

[0010] A saw blade body having an assembly groove, one side of the assembly groove having a first side wall, the other side of the assembly groove having a second side wall, the first side wall and the second side wall facing each other, the first side wall having a first positioning structure, and the second side wall having a second positioning structure; and

[0011] A blade is installed in the groove group, the blade has a first side surface and a second side surface opposite to each other, the first side surface has a first corresponding structure, the second side surface has a second corresponding structure, the first corresponding structure and the first positioning structure abut against each other, and the second corresponding structure and the second positioning structure abut against each other.

[0012] Therefore, when the user installs the blade in the assembly groove, the blade is inserted into the assembly groove from the notch and pushed into the assembly groove along the radial direction, so that the first corresponding structure and the first positioning structure abut against each other, the second corresponding structure and the second positioning structure abut against each other, the third bevel abut against the first bevel, and the fourth bevel abut against the second bevel, so that the blade is positioned in the axial position when it is installed in the assembly groove, thereby achieving the effect of quickly and accurately installing the blade on the saw blade body and aligning the blade with the saw blade body.

[0013] In addition, since the blade can be positioned in the axial position when it is installed in the assembly groove, there is no need to grind the blade again. In this way, the finished blade can be used for assembly, thereby retaining the coating on the outside of the finished blade and the edge accuracy, so as to improve the cutting ability and life of the circular saw blade.

[0014] Furthermore, the utility model clamps the blade through the limiting portion, and the first corresponding structure and the first positioning structure abut against each other, and the second corresponding structure and the second positioning structure abut against each other, so as to fix the blade to the assembly groove of the saw blade body without tightening it through additional screws. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1A The present invention is a top view of fixing a blade to a turning tool by screws in the prior art.

[0016] Figure 1B The present invention is a side view of fixing a blade to a turning tool by screws in the prior art.

[0017] Figure 2 This is a three-dimensional diagram of the blade of the utility model installed on the saw blade body.

[0018] Figure 3A It is an exploded view of the assembly groove of the blade and the saw blade body of the utility model.

[0019] Figure 3B This is an exploded view of the assembly groove of the blade and the saw blade body of the utility model from another perspective.

[0020] Figure 4 It is a side view of the assembly groove of the blade of the utility model installed in the saw blade body.

[0021] Figure 5 It is a cross-sectional view of the assembly groove of the blade of the utility model installed in the saw blade body.

[0022] In the figure: 10, saw blade body; 10A, outer periphery; 101, inner side; 102, outer side; 11, assembly groove; 11A, first side wall; 11C, notch; 11D, groove bottom; 111, first positioning structure; 12, limit portion; 121, second positioning structure; 12A, second side wall; 20, blade; 21, first side surface; 211, first corresponding structure; 22, second side surface; 221, second corresponding structure; 20A, bottom end; S1, first inclined plane; S2, second inclined plane; S3, third inclined plane; S4, fourth inclined plane; Y, radial; X, axial; 90, turning tool; 91, screw; 92, blade. DETAILED DESCRIPTION

[0023] The utility model provides a circular saw blade with a positioning structure, please refer to Figures 2 to 5 ,include:

[0024] A saw blade body 10 has a plurality of arrays of grooves 11, the plurality of arrays of grooves 11 are located at the outer periphery 10A of the saw blade body 10, the plurality of arrays of grooves 11 are arranged at equal intervals, the array of grooves 11 is generally U-shaped, one side of the array of grooves 11 has a first side wall 11A, the other side of the array of grooves 11 has a limiting portion 12, the limiting portion 12 is a spring, the limiting portion 12 is elastic, the limiting portion 12 has a second side wall 12A, the first side wall 11A and the second side wall 12A face each other, the first side wall 11A has a first The positioning structure 111, the second side wall 12A has a second positioning structure 121. In this embodiment, the first positioning structure 111 and the second positioning structure 121 are protruding structures. The first positioning structure 111 and the second positioning structure 121 are conical structures protruding toward each other. More specifically, the first positioning structure 111 and the second positioning structure 121 both have a first inclined surface S1 and a second inclined surface S2, but are not limited to this. In other embodiments, the first positioning structure 111 and the second positioning structure 121 may also be groove structures.

[0025] Preferably, one end of the group groove 11 has an open groove 11C, and the other end of the group groove 11 has a groove bottom 11D, the extension direction between the groove 11C and the groove bottom 11D is a radial direction Y, the first positioning structure 111 and the second positioning structure 121 extend along the radial direction Y, and the saw blade body 10 has an opposite inner side 101 and an outer side 102, and the extension direction between the inner side 101 and the outer side 102 is an axial direction X.

[0026] A blade 20 is mounted in the group groove 11. When the blade 20 is mounted in the group groove 11, the limiting portion 12 is slightly stretched by the blade 20 to clamp the blade 20. The blade 20 has a first side surface 21 and a second side surface 22 opposite to each other. The first side surface 21 has a first corresponding structure 211, and the second side surface 22 has a second corresponding structure 221. The first corresponding structure 211 and the first positioning structure 111 abut against each other, and the second corresponding structure 221 and the second positioning structure 121 abut against each other to position the blade 20 in the axial direction X, so that The blade 20 will not be displaced along the axial direction X. In this embodiment, the first corresponding structure 211 and the second corresponding structure 221 are groove structures, and the multiple protrusion structures are respectively clamped on the multiple groove structures. More specifically, the first corresponding structure 211 and the second corresponding structure 221 both have a third inclined surface S3 and a fourth inclined surface S4, the third inclined surface S3 abuts against the first inclined surface S1, and the fourth inclined surface S4 abuts against the second inclined surface S2, but is not limited to this. In other embodiments, the first corresponding structure 211 and the second corresponding structure 221 may also be protrusion structures.

[0027] Preferably, the first corresponding structure 211 and the second corresponding structure 221 extend along the radial direction Y, thereby limiting the axial displacement X of the saw blade body 10 and the blade 20 .

[0028] Preferably, the blade 20 further has a bottom end 20A, and the bottom end 20A abuts against the groove bottom 11D, thereby limiting the displacement of the blade 20 toward the axis of the saw blade body 10 .

[0029] The above is a configuration description of the main components of each embodiment of the utility model. The operation mode and effect of the utility model are described as follows.

[0030] When the user installs the blade 20 in the assembly groove 11, the blade 20 is inserted into the assembly groove 11 from the notch 11C and pushed into the assembly groove 11 along the radial direction Y, so that the first corresponding structure 211 and the first positioning structure 111 abut against each other, the second corresponding structure 221 and the second positioning structure 121 abut against each other, the third bevel S3 abuts against the first bevel S1, and the fourth bevel S4 abuts against the second bevel S2, so that the blade 20 is positioned at the axial position X when the blade 20 is installed in the assembly groove 11, thereby achieving the effect of quickly and accurately installing the blade 20 on the saw blade body 10 and aligning the blade 20 with the saw blade body 10, so that after the welding process, the blade 20 is still accurately positioned on the saw blade body 10.

[0031] In addition, since the blade 20 can be positioned at the axial position X when it is installed in the assembly groove 11, there is no need to grind the blade 20 again. In this way, the finished blade can be used and the coating and blade accuracy of the finished blade can be completely retained to improve the cutting ability and life of the circular saw blade.

[0032] Furthermore, the utility model clamps the blade 20 through the limiting portion 12, and the first corresponding structure 211 abuts against the first positioning structure 111, and the second corresponding structure 221 abuts against the second positioning structure 121, so as to clamp and fix the blade 20 to the assembly groove 11 of the saw blade body 10 without tightening it with additional screws.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] The utility model is described in detail above in conjunction with the embodiments of the drawings. A person skilled in the art can make various variations of the utility model according to the above description. Therefore, some details in the embodiments should not constitute a limitation of the utility model, and the scope of protection of the utility model shall be defined by the scope of the attached claims.

Claims

1. A circular saw blade with a positioning structure, characterized in that: include: A saw blade body having an assembly groove, wherein one side of the assembly groove has a first side wall, and the other side of the assembly groove has a second side wall, the first side wall and the second side wall face each other, the first side wall has a first positioning structure, and the second side wall has a second positioning structure; as well as A blade is installed in the assembly groove, the blade has a first side surface and a second side surface opposite to each other, the first side surface has a first corresponding structure, the second side surface has a second corresponding structure, the first corresponding structure and the first positioning structure abut against each other, and the second corresponding structure and the second positioning structure abut against each other.

2. A circular saw blade with a positioning structure as claimed in claim 1, characterized in that: The first positioning structure and the second positioning structure are protruding structures, the first corresponding structure and the second corresponding structure are groove structures, and the protruding structures are respectively locked in the groove structures.

3. A circular saw blade with a positioning structure as claimed in claim 2, characterized in that: The first positioning structure and the second positioning structure both have a first inclined surface and a second inclined surface, the first corresponding structure and the second corresponding structure both have a third inclined surface and a fourth inclined surface, the third inclined surface abuts against the first inclined surface, and the fourth inclined surface abuts against the second inclined surface.

4. The circular saw blade with a positioning structure according to claim 1, characterized in that: The first positioning structure and the second positioning structure are groove structures, and the first corresponding structure and the second corresponding structure are protruding structures.

5. The circular saw blade with a positioning structure according to claim 1, characterized in that: One end of the assembly groove has an open groove, and the other end of the assembly groove has a groove bottom. The extension direction between the groove and the groove bottom is a radial direction, and the first positioning structure, the second positioning structure, the first corresponding structure and the second corresponding structure extend along the radial direction.

6. The circular saw blade with a positioning structure according to claim 5, characterized in that: The blade further has a bottom end, and the bottom end is against the bottom of the groove.

7. The circular saw blade with a positioning structure according to claim 1, characterized in that: The other side of the assembly groove has a limiting portion, and the second side wall is arranged on the limiting portion.

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