Mechanical clamping type hard alloy tooth circular saw blade additionally provided with radial fastening built-in positioning groove

Abstract

The utility model relates to the technical field of saw blades, and provides a mechanical clamping type hard alloy tooth circular saw blade additionally provided with a radial fastening built-in positioning groove, which comprises a saw blade body provided with a positioning groove, and the positioning groove is provided with a counter bore; the insert is arranged in the positioning groove, the outer contour of the insert is the same as the inner contour of the positioning groove, and the insert is provided with a threaded hole; the fastener penetrates through the counter bore and the threaded hole to be screwed down and is used for fixing the insert to the saw blade body. By means of the technical scheme, the problems that in the prior art, insert positioning design of a mechanical clamping type hard alloy tooth circular saw blade is complex, and machining difficulty is high are solved.

Description

Technical Field

[0001] This utility model relates to the field of saw blade technology, specifically to a machine-clamped carbide toothed circular saw blade with an internal positioning groove for radial fastening. Background Technology

[0002] In recent years, domestic and international industries have developed machine-clamped carbide toothed circular saw blades. Compared with traditional welded saw blades, these blades offer several advantages: First, because the blade is fixed to the saw blade body with fastening screws, large-diameter saw blades can achieve tooth coating treatment, significantly extending sawing life, solving sawing problems for various difficult-to-machine materials, and reducing sawing costs. Second, the fastening screws connect the blade to the blade body, avoiding the problem of repeated heating of the welded saw blade body, increasing the number of times the blade body can be reused, and reducing sawing costs. Finally, the saw blade repair cycle is greatly shortened, reducing user inventory and saving production costs.

[0003] Currently, the mechanically clamped carbide toothed circular saw blades developed both domestically and internationally suffer from several drawbacks. Firstly, the positioning design of the inserts on the saw blade body is complex, making assembly and disassembly cumbersome and difficult to manufacture. Secondly, the radial fixing of the inserts often uses common fasteners such as screws and bolts, which are inconvenient for assembly and disassembly. Therefore, improvements to existing mechanically clamped saw blades are needed to address these issues. Utility Model Content

[0004] This utility model proposes a machine-clamped carbide toothed circular saw blade with an internally positioned groove for radial fastening, which solves the problem that the insert positioning design of machine-clamped carbide toothed circular saw blades is relatively complex and difficult to process in related technologies.

[0005] The technical solution of this utility model is as follows:

[0006] A machine-clamped carbide toothed circular saw blade with an internally positioned groove for radial fastening, including:

[0007] The saw blade body has a positioning groove, and the positioning groove has a positioning hole.

[0008] An insert is disposed within the positioning groove, the outer contour of the insert being the same as the inner contour of the positioning groove, and the insert having two positioning holes;

[0009] Fasteners, passing through the second positioning hole and the first positioning hole, are used to fix the insert to the saw blade body.

[0010] As a further technical solution, it also includes,

[0011] The serrations are provided on the insert.

[0012] As a further technical solution, it also includes,

[0013] An extension plate is disposed on the insert;

[0014] A mounting base is provided on the saw blade body;

[0015] A locking mechanism is provided on the extension plate for locking the extension plate onto the mounting base.

[0016] As a further technical solution, the extension plate has a first mounting hole, the mounting base has a second and a third mounting hole that communicate with each other, the first mounting hole is located above the second mounting hole, the second mounting hole has a clearance groove, and the locking mechanism includes...

[0017] A locking member is placed in the first mounting hole and passes through the second mounting hole into the third mounting hole. The locking member has a retaining edge, and the extension plate has a protrusion. The protrusion is located in the first mounting hole, and the retaining edge is located above the protrusion.

[0018] An elastic element, with one end acting on the retaining edge and the other end acting on the protrusion, is used to provide a force to move the locking element away from the mounting hole three;

[0019] A locking element is provided on the locking member. After the locking member is rotated, the locking element is engaged at the top of the mounting hole or disengaged from the clearance groove.

[0020] As a further technical solution, the locking mechanism also includes,

[0021] A limiting member is provided on the locking member and is located between the protrusion and the second mounting hole.

[0022] As a further technical solution, the locking mechanism also includes,

[0023] A knob is located at the top of the locking element.

[0024] As a further technical solution, there are several of each of the positioning groove, the insert, and the saw teeth, which are distributed at intervals on both ends of the saw blade body, and the two sets of inserts on the two ends are staggered.

[0025] As a further technical solution, the positioning groove is trapezoidal in shape.

[0026] As a further technical solution, the positioning groove has an arc-shaped connecting surface.

[0027] As a further technical solution, the saw blade body has a central hole and a transmission hole.

[0028] The working principle and beneficial effects of this utility model are as follows:

[0029] In this invention, fasteners pass through positioning hole one and positioning hole two to firmly fix the insert to the saw blade body, ensuring that the insert will not loosen or fall off due to large cutting forces during the sawing process. Attached Figure Description

[0030] The preferred embodiments will be described below in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages and implementation methods of this utility model.

[0031] Figure 1 This is a schematic diagram of the assembly structure of the insert and saw blade body in this utility model;

[0032] Figure 2 This is a partial schematic diagram of the assembly structure of the insert and saw blade body in this utility model;

[0033] Figure 3 This is a schematic diagram of the structure of this utility model;

[0034] Figure 4 for Figure 3 A magnified schematic diagram of section A in the middle;

[0035] Figure 5 This is a cross-sectional view of the locking mechanism in this utility model;

[0036] Figure 6 for Figure 5 A magnified schematic diagram of the B section in the middle;

[0037] In the diagram: 1. Saw blade body, 2. Positioning groove, 3. Positioning hole one, 4. Insert, 5. Positioning hole two, 6. Fastener, 7. Saw teeth, 8. Extension plate, 9. Mounting base, 10. Locking mechanism, 11. Mounting hole one, 12. Mounting hole two, 13. Mounting hole three, 14. Locking element, 15. Edge stop, 16. Protrusion, 17. Elastic element, 18. Clip, 19. Limiting element, 20. Knob, 21. Arc-shaped connecting surface, 22. Center hole, 23. Transmission hole. Detailed Implementation

[0038] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0039] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0040] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0041] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0042] like Figures 1-6 As shown, a machine-clamped carbide toothed circular saw blade with an internally positioned groove for radial fastening is proposed. It includes a saw blade body 1 with a positioning groove 2 and a positioning hole 3. An insert 4 is disposed in the positioning groove 2, the outer contour of the insert 4 is the same as the inner contour of the positioning groove 2, and the insert 4 has a second positioning hole 5. A fastener 6 passes through the second positioning hole 5 and the first positioning hole 3 to fix the insert 4 to the saw blade body 1.

[0043] In this embodiment, in order to solve the problem that the positioning design of the insert 4 of the machine-clamped carbide toothed circular saw blade is relatively complicated, inconvenient to disassemble and assemble, and difficult to process, a positioning groove 2 is opened on the saw blade body 1. The outline of the insert 4 is the same as that of the positioning groove 2. It is only necessary to place the insert 4 into the designated positioning groove 2 and then use the fastener 6 to lock the insert 4. The installation of the insert 4 is completed quickly and easily, and the structure is simple and the processing difficulty is reduced.

[0044] Specifically, the saw blade body 1 is circular and made of high-strength alloy steel. The outline of the insert 4 is the same as that of the positioning groove 2 so that it can be tightly installed in the positioning groove 2. Positioning hole 3 is a countersunk hole, and positioning hole 5 is a threaded hole. The insert 4 is provided with positioning hole 5. When the insert 4 is installed in the positioning groove 2, positioning hole 5 corresponds to positioning hole 3. Two or more positioning holes 3 and 5 can be provided. The fastener 6 can be axially tightened with a screw to fix the insert 4. Then, there is a radial screw on the insert 4 or the extension plate 8 to fix it to the saw blade body 1. The fastener 6 passes through the countersunk hole and the threaded hole to firmly fix the insert 4 to the saw blade body 1, ensuring that the insert 4 will not loosen or fall off due to large cutting forces during the sawing process.

[0045] During installation, first place the insert 4 into the positioning groove 2 of the saw blade body 1, align the positioning hole 3 and the positioning hole 5, then insert the fastener 6 and tighten it to fix the insert 4 on the saw blade body 1.

[0046] Furthermore, it also includes serrations 7, which are set on the insert 4.

[0047] In this embodiment, the saw teeth 7 are made of cemented carbide, which has high hardness and wear resistance. The saw teeth 7 are mounted on the insert 4 and connected to the saw blade body 1 through the insert 4.

[0048] Furthermore, it also includes an extension plate 8, which is disposed on the insert 4; a mounting base 9 is disposed on the saw blade body 1; and a locking mechanism 10 is disposed on the extension plate 8, which is used to lock the extension plate 8 onto the mounting base 9.

[0049] Furthermore, the extension plate 8 has a mounting hole 11, and the mounting base 9 has a connecting mounting hole 12 and a mounting hole 13. The mounting hole 11 is located above the mounting hole 12, and the mounting hole 12 has a clearance groove. The locking mechanism 10 includes a locking member 14, which is placed in the mounting hole 11 and passes through the mounting hole 12 into the mounting hole 13. The locking member 14 has a retaining edge 15, and the extension plate 8 has a protrusion 16, which is located in the mounting hole 11, and the retaining edge 15 is located above the protrusion 16. One end of the elastic member 17 acts on the retaining edge 15, and the other end acts on the protrusion 16 to provide a force for the locking member 14 to move away from the mounting hole 13. A locking member 18 is disposed on the locking member 14. After the locking member 14 is rotated, the locking member 18 is locked at the top of the mounting hole 13 or disengaged from the clearance groove.

[0050] In this embodiment, the locking mechanism 10 is designed to ensure that the insert 4 will not accidentally loosen or fall off during high-speed rotation, reducing the risk of safety accidents caused by the loosening of the insert 4. The latch 18 in the locking mechanism 10 engages with the top of the mounting hole 13 after the locking member 14 rotates, forming a double fixation together with the fastener 6, further enhancing the fixing strength of the insert 4. Even under high-speed, heavy-load sawing conditions, the stability of the saw teeth 7 and the insert 4 is guaranteed, extending the service life of the saw blade.

[0051] When the locking member 14 rotates, the locking member 18 can lock into the top of the mounting hole 13, thereby locking the extension plate 8 onto the mounting base 9. When it is necessary to remove the insert 4, rotate the locking member 14 to disengage the locking member 18 from the clearance groove, and the lock can be released. It is very convenient to radially lock and unlock the insert 4.

[0052] Furthermore, the locking mechanism 10 also includes,

[0053] The limiting member 19 is provided on the locking member 14 and is located between the protrusion 16 and the second mounting hole 12.

[0054] In this embodiment, the limiting member 19 is disposed on the locking member 14, located between the protrusion 16 and the second mounting hole 12, and is used to limit the movement range of the locking member 14.

[0055] Furthermore, the locking mechanism 10 also includes,

[0056] Knob 20 is located at the top of locking element 14.

[0057] In this embodiment, the knob 20 is located at the top of the locking member 14, making it convenient for the operator to rotate the locking member 14. When the saw teeth are worn or damaged and need to be replaced, simply rotate the knob 20 to disengage the clip 18 from the clearance groove, and then unscrew the fastener 6 to easily remove the insert 4 from the saw blade body 1 and replace it with a new saw tooth 7 and insert 4. This design greatly saves replacement time and improves work efficiency.

[0058] Furthermore, there are several positioning grooves 2, inserts 4 and saw teeth 7, which are distributed at intervals on both ends of the saw blade body 1, and the two sets of inserts 4 on the two ends are staggered.

[0059] In this embodiment, the two sets of inserts 4 on both ends are staggered, which makes the saw blade more evenly stressed during operation, further enhancing the stability of sawing, reducing sawing errors caused by saw blade vibration, and improving sawing accuracy.

[0060] Furthermore, the positioning groove 2 is trapezoidal in shape. Furthermore, the positioning groove 2 has an arc-shaped connecting surface 21.

[0061] In this embodiment, the positioning groove 2 is trapezoidal in shape and has an arc-shaped connecting surface 21. This shape design can increase the contact area between the positioning groove 2 and the insert 4, improve stability, and reduce stress concentration to a certain extent. It can make the insert 4 fit tightly with the saw blade body 1. During the high-speed rotating sawing process, it can effectively reduce the shaking and displacement of the insert 4, thereby greatly improving the sawing stability.

[0062] Furthermore, the saw blade body 1 has a central hole 22 and a transmission hole 23.

[0063] In this embodiment, the saw blade body 1 is further provided with a central hole 22 for mounting the saw blade on a sawing device. In addition, the saw blade body 1 is also provided with a number of transmission holes 23 for transmitting torque.

[0064] In summary, during installation, first, place the insert 4 into the positioning groove 2 of the saw blade body 1, aligning the positioning hole 3 and the positioning hole 5. Then, insert and tighten the fastener 6 to fix the insert 4 onto the saw blade body 1. Next, insert the locking member 14 into the mounting holes 11, 12, and 13, positioning the locking member 18 in the mounting hole 12. Under the action of the elastic member 17, the locking member 14 is pushed upward, and the locking member 18 is positioned above the clearance groove. Then, turn the knob 20 to lock the locking member 18 at the top of the mounting hole 13, completing the locking. During use, the saw teeth 7 cut the workpiece. When it is necessary to replace the saw teeth 7 or the insert 4, simply turn the knob 20 to disengage the locking member 18 from the clearance groove, releasing the lock. Then, unscrew the fastener 6 to remove the insert 4 from the saw blade body 1.

[0065] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A machine-clamped carbide toothed circular saw blade with an internally positioned groove for radial fastening, characterized in that, include, The saw blade body (1) has a positioning groove (2), and the positioning groove (2) has a positioning hole (3); An insert (4) is disposed in the positioning groove (2). The outer contour of the insert (4) is the same as the inner contour of the positioning groove (2). The insert (4) has a second positioning hole (5). Fastener (6), passing through positioning hole two (5) and positioning hole one (3), is used to fix the insert (4) on the saw blade body (1).

2. The machine-clamped carbide toothed circular saw blade with a built-in positioning groove for radial fastening as described in claim 1, characterized in that, It also includes, The serrations (7) are provided on the insert (4).

3. The machine-clamped carbide toothed circular saw blade with an internally positioned groove for radial fastening as described in claim 1, characterized in that, It also includes, An extension plate (8) is disposed on the insert (4); Mounting base (9) is provided on the saw blade body (1); A locking mechanism (10) is provided on the extension plate (8) for locking the extension plate (8) onto the mounting base (9).

4. The machine-clamped carbide toothed circular saw blade with an internally positioned groove for radial fastening as described in claim 3, characterized in that, The extension plate (8) has a mounting hole one (11), the mounting base (9) has a connecting mounting hole two (12) and a mounting hole three (13), the mounting hole one (11) is located above the mounting hole two (12), the mounting hole two (12) has a clearance groove, and the locking mechanism (10) includes, The locking member (14) is placed in the first mounting hole (11) and passes through the second mounting hole (12) into the third mounting hole (13). The locking member (14) has a retaining edge (15). The extension plate (8) has a protrusion (16). The protrusion (16) is located in the first mounting hole (11), and the retaining edge (15) is located above the protrusion (16). The elastic element (17), with one end acting on the stop (15) and the other end acting on the protrusion (16), is used to provide a force for the locking element (14) to move away from the mounting hole (13); A clip (18) is provided on the locking member (14). After the locking member (14) is rotated, the clip (18) is locked at the top of the mounting hole three (13) or disengaged from the clearance groove.

5. The machine-clamped carbide toothed circular saw blade with an internally positioned groove for radial fastening as described in claim 4, characterized in that, The locking mechanism (10) also includes, A limiting member (19) is provided on the locking member (14) and located between the protrusion (16) and the second mounting hole (12).

6. The machine-clamped carbide toothed circular saw blade with an internally positioned groove for radial fastening as described in claim 4, characterized in that, The locking mechanism (10) also includes, A knob (20) is located at the top of the locking member (14).

7. The machine-clamped carbide toothed circular saw blade with an internally positioned groove for radial fastening as described in claim 2, characterized in that, There are several of each of the positioning groove (2), the insert (4) and the saw teeth (7), which are distributed at intervals on both ends of the saw blade body (1), and the two sets of inserts (4) on the two ends are staggered.

8. The machine-clamped carbide toothed circular saw blade with a built-in positioning groove for radial fastening as described in claim 1, characterized in that, The positioning groove (2) is trapezoidal in shape.

9. The machine-clamped carbide toothed circular saw blade with an internally positioned groove for radial fastening as described in claim 8, characterized in that, The positioning groove (2) has an arc-shaped connecting surface (21).

10. The machine-clamped carbide toothed circular saw blade with a built-in positioning groove for radial fastening as described in claim 1, characterized in that, The saw blade body (1) has a center hole (22) and a transmission hole (23).

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