Alloy tapper

Abstract

The utility model discloses an alloy tapper which comprises a tapper body, a plurality of installation positions are evenly arranged on the outer wall of the tapper body, sliding blocks are symmetrically and fixedly connected to the two sides of the inner wall of each installation position, cutting tool bits are connected to the installation positions in a sliding mode through the sliding blocks, and fixing threaded holes are formed in the surfaces of the inner walls of the installation positions. And a cutting tool bit is fixedly connected through the fixed threaded hole. By combining the structural design, when the tapper is used for tapping for a long time, a large amount of heat is generated due to cutting of the cutting tool bits, abrasion of different degrees is caused, the cutting tool bits with the heavy abrasion degree can be replaced, and therefore the use cost of a user is reduced, and the practicability is better.

Description

Technical Field

[0001] The utility model relates to the technical field of alloy hole openers, and particularly relates to an alloy hole opener. Background Art

[0002] With the rapid development of technology, there are more tools available for people to choose from in daily life processing. A common tool is a hole opener. A hole opener is a special circular saw for cutting circular holes in industry or engineering. It can be installed on electric tools such as electric drills, impact drills, and radial drills. It is simple and flexible to operate, convenient to carry, safe, and widely used.

[0003] Currently, the inventors of this application have found the following problems in the practical use process:

[0004] For existing hole openers, when making holes, the hole opener cuts through multiple cutting heads on the surface. During the cutting process, a large amount of heat is generated by the cutting heads. Cutting at a high temperature for a long time causes different degrees of wear on the cutting heads, resulting in a reduction in the cutting effect of the cutting heads. Since existing hole openers are integrally formed, if one cutting head is severely worn, the entire alloy hole opener needs to be replaced, thus increasing the usage cost for users. Summary of the Invention

[0005] The purpose of the utility model is to provide an alloy hole opener to solve the problems mentioned in the above background art. For existing devices, when making holes, the hole opener cuts through multiple cutting heads on the surface. During the cutting process, a large amount of heat is generated by the cutting heads. Cutting at a high temperature for a long time causes different degrees of wear on the cutting heads, resulting in a reduction in the cutting effect of the cutting heads. Since existing hole openers are integrally formed, if one cutting head is severely worn, the entire alloy hole opener needs to be replaced, thus increasing the usage cost for users.

[0006] To achieve the above purpose, the utility model provides the following technical solution: An alloy hole opener includes a hole opener body. A number of installation positions are evenly opened on the outer wall of the hole opener body. Symmetrically fixed connections are made on both sides of the inner wall of the installation position with sliders. The installation position is slidably connected with a cutting head through the sliders. A fixed threaded hole is opened on the surface of the inner wall of the installation position, and the cutting head is fixedly connected through the fixed threaded hole.

[0007] Preferably, on both sides of the outer wall of the cutting head, chutes adapted to the sliders are opened, and the chutes are slidably connected to the surface of the sliders.

[0008] Preferably, on the surface of the cutting head, a fixed connection hole is opened at a position opposite to the fixed threaded hole, and chamfers are opened at the corners of the fixed connection hole on the surface of the cutting head.

[0009] Preferably, the cutting tool head and the mounting position are threadedly connected through a fastener passing through the fixed connection hole and the fixed threaded hole, so as to realize the installation and fixation between the cutting tool head and the mounting position. The outer wall surface of the cutting tool head and the surface of the reamer body are on the same horizontal line.

[0010] Preferably, after the fastener is tightened with the fixed threaded hole, the top surface of the fastener and the outer wall surface of the reamer body are on the same horizontal plane.

[0011] Advantageous Effects

[0012] Compared with the existing technology, the advantageous effects of the present utility model are as follows:

[0013] Combined with the above structural design, when the reamer performs long-term hole opening, a large amount of heat is generated due to cutting by the cutting tool head, resulting in varying degrees of wear. The cutting tool head with a heavier wear degree can be replaced, thereby reducing the usage cost of the user and having better practicability. Description of the Drawings

[0014] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2 It is a schematic diagram of the structure of the reamer body of the present utility model;

[0016] Figure 3 It is a schematic diagram of the structure of the cutting tool head of the present utility model;

[0017] Figure 4 It is an enlarged schematic diagram of part A of the present utility model.

[0018] 1. Reamer body; 2. Cutting tool head; 3. Fastener; 4. Mounting position; 5. Chute; 6. Fixed connection hole; 7. Chamfer; 8. Fixed threaded hole; 9. Slide block. Detailed Embodiment

[0019] The technical solutions of the present utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments of the present utility model fall within the protection scope of the present utility model.

[0020] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", "vertical", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention 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 thus should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0021] As Figures 1-4 FIG. 5 is a schematic structural view of an alloy hole opener according to a preferred embodiment of the present utility model. In this embodiment, an alloy hole opener includes a hole opener body 1. A plurality of mounting positions 4 are evenly formed on the outer wall of the hole opener body 1. On both sides of the inner wall of the mounting position 4, sliders 9 are symmetrically and fixedly connected. The mounting position 4 is slidably connected to a cutting tool head 2 through the sliders 9, thereby realizing the connection function between the mounting position 4 and the cutting tool head 2, and simultaneously playing a guiding role in the connection of the cutting tool head 2 and a limiting role during the cutting process, effectively preventing the cutting tool head 2 from disengaging from the mounting position 4 due to resistance during the cutting process. A fixing threaded hole 8 is formed on the surface of the inner wall of the mounting position 4, and the cutting tool head 2 is fixedly connected through the fixing threaded hole 8, thereby realizing the fixing function of the cutting tool head 2. Combining the above structural design, when the hole opener performs long-term hole opening, the cutting tool head 2 generates a large amount of heat due to cutting, resulting in varying degrees of wear. The cutting tool head with a heavier wear degree can be replaced, thereby reducing the usage cost of the user and having better practicability.

[0022] In this embodiment, on both sides of the outer wall of the cutting tool head 2, sliding grooves 5 adapted to the sliders 9 are formed, and the sliding grooves 5 are slidably connected to the surfaces of the sliders 9. The above structural design effectively avoids the occurrence of gaps after the cutting tool head 2 is installed in the mounting position 4, resulting in shaking during the cutting process and poor cutting effect of the hole opener.

[0023] In this embodiment, a fixing connection hole 6 is formed on the surface of the cutting tool head 2 at a position opposite to the fixing threaded hole 8, and a chamfer 7 is formed at the corner of the surface of the cutting tool head 2 and the fixing connection hole 6. This structural design facilitates the better connection between the cutting tool head 2 and the mounting position 4 by the fastener 3.

[0024] In this embodiment, the cutting tool head 2 and the mounting position 4 are threadedly connected through the fastener 3 passing through the fixing connection hole 6 and the fixing threaded hole 8, so as to realize the installation and fixation between the cutting tool head 2 and the mounting position 4. The outer wall surface of the cutting tool head 2 and the surface of the reamer body 1 are on the same horizontal line. After the fastener 3 and the fixing threaded hole 8 are tightened, the top surface of the fastener 3 and the outer wall surface of the reamer body 1 are on the same horizontal plane. The design of the above structure ensures that the aperture size is not damaged during the cutting process of the reamer and reduces the resistance during the reaming process.

[0025] Working principle

[0026] During specific use, when replacing the cutting tool head 2, it is necessary to disassemble the cutting tool head 2 installed in the mounting position 4. The operator uses a disassembly and assembly tool to rotate the fastener 3 counterclockwise to separate the fastener 3 from the fixing threaded hole 8, so that the cutting tool head 2 and the mounting position 4 are loosened. Then the operator holds the cutting tool head 3 and moves it along the direction of the slide 9 to separate the cutting tool head 2 from the mounting position 4, thus completing the disassembly of the cutting tool head 2. When installing, hold the cutting tool head 2, align the sliding groove 5 with the slider 9, and realize the connection between the cutting tool head 2 and the mounting position 4 through the sliding connection between the sliding groove 5 and the slider 9. After the connection is completed, use the disassembly and assembly tool to rotate the fastener 3 clockwise, so as to realize the connection between the fastener 3 and the fixing threaded hole 8, and thus make the connection between the cutting tool head 2 and the mounting position 4 fixed.

[0027] The above content further elaborates on the present invention in combination with specific embodiments. It cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, without departing from the concept of the present invention, several simple deductions or substitutions can still be made, which should all be regarded as belonging to the protection scope determined by the claims submitted for the present invention.

Claims

1. An alloy hole opener, comprising a hole opener body (1), characterized in that: The outer wall of the hole opener body (1) is provided with a plurality of mounting positions (4), the inner walls of the mounting positions (4) are symmetrically fixedly connected with sliders (9) on both sides, the mounting positions (4) are slidably connected with a cutting head (2) via the sliders (9), the inner wall surface of the mounting positions (4) is provided with a fixed threaded hole (8), and the cutting head (2) is fixedly connected via the fixed threaded hole (8).

2. The alloy hole opener according to claim 1, characterized in that: Slide grooves (5) adapted to the slide block (9) are provided on both sides of the outer wall of the cutting tool head (2), and the slide grooves (5) are slidably connected to the surface of the slide block (9).

3. The alloy hole opener according to claim 2, characterized in that: A fixed connection hole (6) is provided on the surface of the cutting bit (2) at a position opposite to the fixed threaded hole (8), and a chamfer (7) is provided at the corner between the fixed connection hole (6) and the surface of the cutting bit (2).

4. The alloy hole opener according to claim 3, characterized in that: The cutting head (2) and the mounting position (4) are threadedly connected via a fastener (3) passing through a fixed connection hole (6) and a fixed threaded hole (8), thereby achieving installation and fixation between the cutting head (2) and the mounting position (4); the outer wall surface of the cutting head (2) and the surface of the hole opener body (1) are on the same horizontal line.

5. The alloy hole opener according to claim 4, characterized in that: After the fastener (3) and the fixing threaded hole (8) are tightened, the top surface of the fastener (3) and the outer wall surface of the hole opener body (1) are in the same horizontal plane.

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