High-strength cold saw blade capable of preventing teeth from falling off

Abstract

The utility model discloses a high strength cold saw blade of preventing tooth drop, it relates to cold saw blade structure technical field, it includes saw blade body, the outer edge of saw blade body is provided with a plurality of toothholder along its circumference direction fixedly, each toothholder and saw blade body are all formed integrally, the inner end face of each toothholder is provided with a tooth socket B, the tooth socket B is provided with a plurality of tooth sockets, the tooth socket A is provided with a plurality of tooth sockets B, the tooth socket B is provided with a plurality of tooth sockets B, and the tooth socket B is provided with a plurality of tooth sockets. An included angle is formed between the bottom surface and the vertical surface of each tooth groove B, a solder layer is welded in each tooth groove B, and a tool bit B is welded on each solder layer; a cutting edge of the tool bit B extends out of the tooth groove B. An arc-shaped groove is formed in the inner end face of the tool bit B and penetrates through the front end face and the rear end face of the tool bit B. The vertical section of the solder layer protrudes outwards and is embedded into the arc-shaped groove. The utility model has the beneficial effects of high mechanical strength and long service life.

Description

Technical Field

[0001] The utility model relates to the technical field of cold saw blade structures, in particular to a high-strength cold saw blade for preventing tooth shedding. Background Art

[0002] A cold saw blade can cut a metal round bar or a metal plate, and its outer shape is circular. The structure of a certain cold saw blade is as Figures 1 to 2 shown. It includes a saw blade body 1. A plurality of tooth seats 2 are fixedly arranged on the outer edge of the saw blade body 1 along its circumferential direction. Each tooth seat 2 is integrally formed with the saw blade body 1. A tooth groove A3 is formed on the inner end surface of each tooth seat 2. The bottom surface of the tooth groove A3 is at a 90° angle to the vertical plane. A cutter head A4 is welded in each tooth groove A3, and the cutting edge of the cutter head A4 extends outside the tooth groove A3.

[0003] The method of using this cold saw blade to cut a metal round bar or a metal plate is as follows: The worker fixedly installs the saw blade body 1 on the main shaft of the cutting equipment, and then fixes the workpiece of the metal round bar or metal plate to be cut. The cutting equipment is turned on. The cutting equipment drives the main shaft to rotate, the main shaft drives the saw blade body 1 to rotate, the saw blade body 1 drives each cutter head A4 thereon to move synchronously, and then the cutting equipment controls the rotating cold saw blade to move towards the metal round bar or metal plate. The cutting edges of each cutter head A4 on the cold saw blade alternately cut the metal round bar or metal plate. After cutting for a period of time, the metal round bar or metal plate can be finally cut off.

[0004] However, although this cold saw blade can cut metal parts, there are still the following technical defects in terms of technology:

[0005] I. When the cutting edge of the cutter head A4 cuts the metal material, a torque is generated at the lower end of the cutter head A4 away from the tooth seat 2. The direction of the torque is as shown by the arrow in Figure 2 . After the cutter head A4 on this cold saw blade has been working for a long time, this torque will finally cause the lower end of the cutter head A4 to come out of the tooth groove A3, thereby causing the cutter head A4 to fall off. When the cutter head A4 falls off, the entire cold saw blade cannot be used anymore. Therefore, this cold saw blade has the technical defects of low mechanical strength and short service life.

[0006] II. The connection strength between the cutter head A4 and the vertical plane of the tooth groove A3 is low. After the cutter head A4 on this cold saw blade has been working for a long time, the cutter head A4 will come out along this vertical plane. When the cutter head A4 falls off, the entire cold saw blade cannot be used anymore. Therefore, this cold saw blade has the technical defects of low mechanical strength and short service life.

[0007] Therefore, there is an urgent need for a cold saw blade with high mechanical strength and long service life. Summary of the Utility Model

[0008] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a high-strength cold saw blade with high mechanical strength and long service life that prevents tooth shedding.

[0009] The purpose of the utility model is achieved through the following technical solutions: a high-strength cold saw blade that prevents tooth shedding, which includes a saw blade body. Along the circumferential direction of the outer edge of the saw blade body, a plurality of tooth seats are fixedly arranged. Each tooth seat is integrally formed with the saw blade body. On the inner end surface of each tooth seat, a tooth groove B is opened. The bottom surface of the tooth groove B is arranged at an angle with the vertical plane. A solder layer is welded in each tooth groove B, and a tool bit B is welded on the solder layer;

[0010] The cutting edge of the tool bit B extends outside the tooth groove B. An arc-shaped groove is opened on the inner end surface of the tool bit B, and the arc-shaped groove penetrates through the front and rear end surfaces of the tool bit B. The vertical section of the solder layer bulges outwards and is embedded in the arc-shaped groove.

[0011] The angle between the bottom surface of the tooth groove B and the vertical plane is 30° - 38°.

[0012] The distance between every two adjacent tooth grooves B is equal.

[0013] A central hole is opened in the middle of the saw blade body.

[0014] An arc-shaped part is arranged at the lower end of the tool bit B, and the arc-shaped part is embedded in the angle of the tooth groove B.

[0015] The utility model has the following advantages:

[0016] When the cutting edge of the tool bit B cuts metal materials, a torque away from the tooth seat will be generated at the lower end of the tool bit B. Since the arc-shaped part of the tool bit B is embedded in the tooth groove B, the bottom surface of the tooth groove B can well overcome the torque. Even after the tool bit B on the cold saw blade works for a long time, this torque will not cause the lower end of the tool bit B to come out of the tooth groove B, thus effectively preventing the tool bit B from falling off. Therefore, compared with the existing cold saw blade, this cold saw blade has higher mechanical strength and longer service life.

[0017] The cutting edge of the tool bit B of the utility model extends outside the tooth groove B. An arc-shaped groove is opened on the inner end surface of the tool bit B, and the arc-shaped groove penetrates through the front and rear end surfaces of the tool bit B. The vertical section of the solder layer bulges outwards and is embedded in the arc-shaped groove; therefore, the vertical section of the solder layer can well hold the tool bit B, thus effectively avoiding the tool bit B on the cold saw blade from coming out along the vertical plane of the tooth groove B after working for a long time. Compared with the existing cold saw blade, it has higher mechanical strength and longer service life. Description of the Drawings

[0018] Figure 1 It is a structural schematic diagram of an existing cold saw blade;

[0019] Figure 2 is Figure 1 the partial enlarged view of part I;

[0020] Figure 3 is the structural schematic diagram of the present utility model;

[0021] Figure 4 is Figure 3 the partial enlarged view of part II;

[0022] Figure 5 is the structural schematic diagram of cutter head B;

[0023] In the figure:

[0024] 1 - saw blade body, 2 - tooth seat, 3 - tooth groove A, 4 - cutter head A;

[0025] 6 - tooth groove B, 7 - solder layer, 8 - cutter head B, 9 - arc groove, 10 - arc part, 11 - center hole. Specific embodiments

[0026] The following further describes the present utility model with reference to the accompanying drawings. The protection scope of the present utility model is not limited to the following:

[0027] As Figures 3 to 5 shown, a high-strength cold saw blade for preventing tooth shedding includes a saw blade body 1. A center hole 11 is provided in the middle of the saw blade body 1, and the saw blade body 1 can be fixedly installed on the main shaft of the cutting equipment through the center hole 11. A plurality of tooth seats 2 are fixedly arranged on the outer edge of the saw blade body 1 along its circumferential direction. Each tooth seat 2 is integrally formed with the saw blade body 1. A tooth groove B6 is provided on the inner end surface of each tooth seat 2. The distance between every two adjacent tooth grooves B6 is equal. The bottom surface of the tooth groove B6 is arranged at an angle with the vertical plane. A solder layer 7 is welded in each tooth groove B6, and a cutter head B8 is welded on the solder layer 7.

[0028] The cutting edge of the cutter head B8 extends outside the tooth groove B6. An arc groove 9 is provided on the inner end surface of the cutter head B8. The arc groove 9 penetrates through the front and rear end surfaces of the cutter head B8. The vertical section of the solder layer 7 bulges outwards and is embedded in the arc groove 9. The angle between the bottom surface of the tooth groove B6 and the vertical plane is 30 - 38°. An arc part 10 is provided at the lower end of the cutter head B8, and the arc part 10 is embedded in the included angle of the tooth groove B6.

[0029] The method of using this cold saw blade to cut a metal round bar or a metal plate is as follows:

[0030] The worker fixedly installs the saw blade body 1 on the main shaft of the cutting equipment, and then fixes the metal round bar or metal plate workpiece to be cut. After turning on the cutting equipment, the cutting equipment drives the main shaft to rotate, the main shaft drives the saw blade body 1 to rotate, and the saw blade body 1 drives each cutting head B8 thereon to move synchronously. Then, the cutting equipment controls the cold saw blade in the rotating state to move towards the metal round bar or metal plate workpiece, and the cutting edges of each cutting head B8 on the cold saw blade alternately cut the metal round bar or metal plate workpiece. After cutting for a period of time, the metal round bar or metal plate workpiece can be finally cut off.

[0031] When the cutting edge of the cutting head B8 cuts the metal material, a torque away from the tooth seat 2 will be generated at the lower end of the cutting head B8, and the direction of the torque is as shown by the arrow in Figure 4 . Since the arc portion 10 of the cutting head B8 is embedded in the tooth groove B6, the bottom surface of the tooth groove B6 can well overcome the torque. Even after the cutting head B8 on the cold saw blade has worked for a long time, this torque will not cause the lower end of the cutting head B8 to come out of the tooth groove B6, thus effectively preventing the cutting head B8 from falling off. Therefore, compared with the cold saw blade as shown in Figures 1 to 2 , this cold saw blade has higher mechanical strength and a longer service life.

[0032] In addition, since the vertical section of the solder layer 7 protrudes outward and is embedded in the arc groove 9 of the cutting head B8, the vertical section of the solder layer 7 can well hold the cutting head B8, thus effectively preventing the cutting head B8 on the cold saw blade from coming out along the vertical surface of the tooth groove B6 after working for a long time. Therefore, compared with the cold saw blade as shown in Figures 1 to 2 , this cold saw blade has higher mechanical strength and a longer service life.

[0033] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high-strength cold saw blade for preventing tooth shedding, characterized in that: It includes a saw blade body (1), and a plurality of tooth seats (2) are fixedly arranged on the outer edge of the saw blade body (1) along its circumferential direction. Each tooth seat (2) is integrally formed with the saw blade body (1). A tooth groove B (6) is formed on the inner end surface of each tooth seat (2). The bottom surface of the tooth groove B (6) is arranged at an angle with the vertical plane. A solder layer (7) is welded in each tooth groove B (6), and a cutting head B (8) is welded on the solder layer (7); The cutting edge of the cutting head B (8) extends outside the tooth groove B (6). An arc groove (9) is formed on the inner end surface of the cutting head B (8). The arc groove (9) penetrates through the front and rear end surfaces of the cutting head B (8). The vertical section of the solder layer (7) protrudes outward and is embedded in the arc groove (9).

2. The high-strength cold saw blade for preventing tooth shedding according to claim 1, wherein: The angle between the bottom surface of the tooth groove B (6) and the vertical plane is 30° to 38°.

3. The high-strength cold saw blade for preventing tooth shedding according to claim 2, wherein: The spacing between every two adjacent tooth grooves B (6) is equal.

4. A high-strength cold saw blade for preventing tooth loss according to claim 3, characterized in that: A central hole (11) is formed in the middle of the saw blade body (1).

5. The high-strength cold saw blade for preventing tooth shedding according to claim 4, wherein: An arc portion (10) is arranged at the lower end of the cutting head B (8), and the arc portion (10) is embedded in the included angle of the tooth groove B (6).

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