A circular saw blade with a finished blade

Abstract

The utility model is a circular saw blade with a finished blade, comprising: a saw blade body, having a plurality of fixing grooves which are equidistant and arranged in a ring shape; and a plurality of blades which are respectively welded in the fixing grooves; the characteristic is that: each of the blades is a finished blade; each of the blades is welded in the fixing groove of the saw blade body in the form of a finished blade, therefore, after welding, it is not necessary to grind each of the finished blades, and therefore, the utility model will not damage the precision or coating of the finished blade, and effectively improves the cutting ability and life of the circular saw blade.

Description

Technical Field

[0001] The utility model relates to a circular saw blade for metal cutting, in particular to a circular saw blade with a finished blade. 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] However, the blades directly welded to the saw blade body are semi-finished blades (i.e., blade blanks), and their cutting ability and life are obviously insufficient. In addition, the finished blades currently used for assembly are all used in 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.

[0004] Therefore, how to develop a circular saw blade with improved cutting ability and life span is a technical problem that urgently needs to be overcome. Utility Model Content

[0005] The utility model aims to provide a circular saw blade with a finished blade, mainly to improve the cutting ability and life.

[0006] To achieve the above-mentioned purpose, the utility model provides a circular saw blade with a finished blade, comprising: a saw blade body having a plurality of fixing grooves that are equidistant and arranged in a ring shape; and a plurality of blades that are respectively welded in the fixing grooves;

[0007] The feature of the invention is that each of the blades is a finished blade.

[0008] The utility model has the effect that each of the blades is welded in the fixing groove of the saw blade body in the form of a finished blade. Therefore, there is no need to grind each of the finished blades after welding. Therefore, the utility model will not damage the precision or coating of the finished blade, and effectively improves the cutting ability and life of the circular saw blade.

[0009] Preferably, each of the finished blades is made by a precision casting process.

[0010] Preferably, each of the finished blades has two blade sides arranged opposite to each other, and two coating parts protruding from the blade sides. The design of the coating part can provide multiple protections, including increasing hardness, wear resistance, oxidation resistance, corrosion resistance and toughness. In addition, the coating part design can also protect the finished blade from corrosion, reduce noise during cutting, and improve cutting accuracy and efficiency.

[0011] Preferably, each of the finished blades is formed with the coating portion before welding.

[0012] Preferably, the fixing groove of the saw blade body has first positioning structures arranged face to face, and the finished blade has second positioning structures arranged opposite to each other, and each of the second positioning structures is respectively positioned with each of the first positioning structures.

[0013] Preferably, the saw blade body further has two saw blade side surfaces which are arranged opposite to each other, and the blade side surface of the finished blade is in the same plane as the saw blade side surface.

[0014] Preferably, each of the finished blades also has a cutting surface arranged between the two blade side surfaces, the cutting surface has a cutting edge, each of the coating portions has a coating side surface, and the distance between the two coating side surfaces is equal to the length of the cutting edge.

[0015] Preferably, the two coating portions of each finished blade are adjacent to two side edges of the cutting surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1A It is a top view of fixing a blade to a tool holder by screws in the prior art.

[0017] Figure 1B It is a side view of fixing a blade to a tool holder by screws in the prior art.

[0018] Figure 2 It is a stereogram of an embodiment of the utility model.

[0019] Figure 3 yes Figure 2 A partial enlarged view of .

[0020] Figure 4 yes Figure 2 A partial cross-sectional view of .

[0021] Figure 5A It is a three-dimensional exploded view of the finished blade and the fixing groove of the saw blade body of the utility model.

[0022] Figure 5B It is a three-dimensional exploded view of the fixing groove of the finished blade and the saw blade body of the utility model from another perspective.

[0023] Figure 6 It is a combined cross-sectional view of the finished blade and the saw blade body of the utility model. DETAILED DESCRIPTION

[0024] See also Figure 2 and Figure 3 As shown, the embodiment of the utility model provides a circular saw blade 100 with a finished blade, which is suitable for cutting a cutting object. The circular saw blade 100 with a finished blade is mainly composed of a saw blade body 20 and a plurality of finished blades 30, wherein:

[0025] The saw blade body 20 has a plurality of fixing grooves 21 that are equidistant and arranged in a ring shape. In this embodiment, the saw blade body 20 is circular, and each of the fixing grooves 21 is arranged at the periphery of the saw blade body 20 .

[0026] Each of the finished blades 30 is welded to the fixing groove 21, and each has two blade side surfaces 31 disposed opposite to each other, and two coating portions 32 protruding from the blade side surfaces 31. In this embodiment, each of the finished blades 30 is made by a precision casting process. At the same time, each of the finished blades 30 is formed with the coating portion 32 before being welded.

[0027] The above is a description of the main components of the embodiment of the utility model. The effects of the utility model are described as follows:

[0028] 1. Effectively improve the cutting ability and life of the circular saw blade. Since the blade used in the utility model is welded in the fixed groove 21 of the saw blade body 20 in the form of a finished blade 30, there is no need to grind each finished blade 30 after welding. Therefore, the utility model will not damage the precision or coating of the finished blade 30, and effectively improve the cutting ability and life of the circular saw blade.

[0029] Second, reducing the cost of finished blades. Since each of the finished blades 30 of the utility model is made by precision casting before welding, especially the coating portion 32 of the finished blade 30, the mold can be finely adjusted multiple times according to the use results of the finished blade 30, so that the finished blade 30 finally cast will more accurately meet the actual needs; and the adjusted mold can accurately cast a large number of required finished blades 30, and the finished blades 30 do not need to be ground after welding. Therefore, in addition to effectively improving the cutting ability and life of the circular saw blade, the utility model can also reduce the production cost of the finished blade 30.

[0030] 3. Improve cutting accuracy and efficiency. Since the finished blade 30 used in the utility model is made by precision casting before welding, and no grinding is required after welding, each finished blade 30 can be coated by chemical vapor deposition (CVD) or physical vapor deposition (PVD) after precision casting, so that the design of the finished blade 30 as a whole, especially the coating part 32, can provide a variety of protections, including reducing temperature rise, reducing die friction coefficient, reducing cutting gravity, increasing hardness, wear resistance, oxidation resistance, corrosion resistance and toughness. In addition, the design of the coating part 32 can also reduce noise during cutting, improve cutting stability, and improve cutting accuracy and efficiency.

[0031] Fourth, improve the applicability of finished blades. Since the finished blades 30 used in the utility model do not need to be ground after being welded to the saw blade body 20, the size and position of the coating part 32 of each finished blade 30 can be adjusted according to needs during precision casting, thereby improving the applicability of the finished blades 30.

[0032] It is worth mentioning that, in conjunction with Figures 4 to 6 As shown, the saw blade body 20 also has two saw blade side surfaces 22 that are opposite to each other. In addition, the fixing groove 21 of the saw blade body 20 has first positioning structures 23 that are face to face. Each of the first positioning structures 23 is convex, and each of the first positioning structures 23 has a conical cross-section, but this is not limited to this and may also be concave.

[0033] The blade side surface 31 of each finished blade 30 is on the same plane as the blade side surface 22 of the saw blade body 20, and each finished blade 30 also has a cutting surface 33 disposed between the two blade side surfaces 31. In addition to being protruding from the blade side surfaces 31, the two coating portions 32 are also adjacent to the two side edges of the cutting surface 33. The cutting surface 33 faces the rotation direction of the saw blade body 20, i.e. Figure 2 In clockwise direction, the cutting surface 33 has a cutting edge 331. Figure 3 To define the reference, the cutting edge 331 is the bottom edge of the cutting surface 33, and the length L1 of the cutting edge 331 is greater than the distance L2 between the two blade sides 31, and is equal to the distance L3 between the coating sides 321 on the two coating parts 32. It should be noted that the same distance or length in this case includes the error range caused by processing or chamfering. In addition, each finished blade 30 has a second positioning structure 34 set in reverse, each second positioning structure 34 is concave, but not limited to this, and can also be convex, and each second positioning structure 34 is respectively positioned with each first positioning structure 23.

Claims

1. A circular saw blade having a finished blade, characterized in that: Include: A saw blade body having a plurality of fixing grooves which are equidistant and arranged in a ring shape; and a plurality of blades, respectively welded in the fixing grooves; Each of the blades is a finished blade.

2. A circular saw blade with a finished blade as claimed in claim 1, characterized in that: Each of the finished blades is made through a precision casting process.

3. A circular saw blade with a finished blade as claimed in claim 1, characterized in that: Each of the finished blades has two blade side surfaces that are opposite to each other, and two coating portions that are respectively protruded from the blade side surfaces.

4. A circular saw blade with a finished blade as claimed in claim 3, characterized in that: Each of the finished blades is formed with the coating portion before welding.

5. A circular saw blade with a finished blade as claimed in claim 1, characterized in that: The fixing groove of the saw blade body has first positioning structures arranged face to face, and the finished blade has second positioning structures arranged opposite to each other, and each of the second positioning structures is respectively positioned with each of the first positioning structures.

6. A circular saw blade with a finished blade as claimed in claim 3, characterized in that: The saw blade body also has two saw blade side surfaces which are arranged opposite to each other, and the blade side surface of the finished blade is in the same plane as the saw blade side surface.

7. A circular saw blade with a finished blade as claimed in claim 3, characterized in that: Each of the finished blades also has a cutting surface arranged between the two blade side surfaces, the cutting surface has a cutting edge, each of the coating portions has a coating side surface, and the distance between the two coating side surfaces is equal to the length of the cutting edge.

8. A circular saw blade with a finished blade as claimed in claim 7, characterized in that: The two coating portions of each finished insert are adjacent to both side edges of the cutting surface.

Images