High-speed steel twist drill convenient to fix

Abstract

The utility model discloses a high-speed steel twist drill convenient to fix, which comprises a high-speed steel twist drill bit, a high-speed steel twist drill handle is arranged above the high-speed steel twist drill bit, a first spring is connected inside the high-speed steel twist drill handle, the end part of the first spring is connected with a moving rod, the upper end of the moving rod is provided with a fixing plate, and the upper end of the fixing plate is provided with a fixing screw. A positioning rod is hinged to the side face of the fixing plate, and an adjusting rod is hinged to the end, away from the fixing plate, of the positioning rod. According to the high-speed steel twist drill convenient to fix, the high-speed steel twist drill handle only needs to be inserted into the mounting groove of the connecting part of the electric drill, upward pushing of the high-speed steel twist drill bit is kept, the high-speed steel twist drill handle is stressed to move upwards, an adjusting rod hinged to the end is pushed, and the adjusting rod pushes a positioning rod to rotate and unfold; and meanwhile, the positioning rod is locked to be unfolded through clamping of the limiting rod and the limiting hole, and rapid and convenient fixing of the high-speed steel twist drill is achieved.

Description

Technical Field

[0001] This utility model relates to the field of high-speed steel twist drill technology, specifically a high-speed steel twist drill that is easy to fix. Background Technology

[0002] High-speed steel twist drills are a common drilling tool. As a basic consumable in the machining field, their market demand is stable and continues to grow. In recent years, with the advancement of materials science and manufacturing processes, the performance of high-speed steel twist drills has been significantly improved, such as higher hardness, better heat resistance and wear resistance.

[0003] When a high-speed twist drill is installed on an electric drill and driven by the electric drill, it is not easy to maintain its centering position and assemble it quickly. The installation requires many steps and is not easy to fix the high-speed twist drill in a single step. Therefore, we propose a high-speed steel twist drill that is easy to fix to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a high-speed steel twist drill that is easy to fix, in order to solve the problem mentioned in the background art that the current high-speed twist drills on the market are not conducive to maintaining their centering position and quick assembly during installation, and require many operation steps, making it difficult to fix the high-speed twist drill in a single step.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a conveniently fixed high-speed steel twist drill, comprising a high-speed steel twist drill bit, a high-speed steel twist drill shank mounted above the high-speed steel twist drill bit, a spring connected inside the high-speed steel twist drill shank, a moving rod connected to the end of the spring, a fixing plate mounted on the upper end of the moving rod, a positioning rod hinged to the side of the fixing plate, an adjusting rod hinged to the end of the positioning rod away from the fixing plate, and an adjusting rod hinged to the upper end of the high-speed steel twist drill shank at the end of the adjusting rod away from the positioning rod.

[0006] A second spring is connected to the side wall of the high-speed steel twist drill shank, and a limit rod is installed at the end of the second spring.

[0007] A connecting rod is installed at the lower end of the movable rod, and a limit hole is formed on the side of the connecting rod.

[0008] Preferably, the movable rod has an inverted "T" shape and slides through the upper end of the high-speed steel twist drill shank.

[0009] Preferably, the positioning rod and the adjusting rod are both distributed at an angle, and the positioning rod and the adjusting rod are distributed at equal angles on the fixing plate and the high-speed steel twist drill shank.

[0010] Preferably, the limiting holes are evenly distributed on the connecting rod, and the top surface of the limiting holes is inclined.

[0011] Preferably, the limiting rod slides through the side wall of the high-speed steel twist drill shank, and the upper side of the end of the limiting rod that extends into the high-speed steel twist drill shank is inclined.

[0012] Preferably, the limiting rod and the limiting hole are engaged with each other, and the inclined surface of the limiting rod is in contact with the inclined surface of the limiting hole.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) This easy-to-fix high-speed steel twist drill only requires inserting the high-speed steel twist drill shank into the mounting groove of the electric drill connection part, keeping the high-speed steel twist drill bit pushed upward, so that the high-speed steel twist drill shank is pushed upward, pushing the end hinged adjustment rod, so that the adjustment rod pushes the positioning rod to rotate and unfold until the positioning rod is tightly engaged with the mounting groove of the electric drill connection part. At the same time, the engagement of the limit rod and the limit hole is used to lock the unfolding of the positioning rod, so as to realize the high-speed steel twist drill is quickly and conveniently fixed in a centered position.

[0015] (2) This easy-to-fix high-speed steel twist drill can be released by simply pulling the limiting rod and moving the limiting rod out of the limiting hole. This will release the lock between the high-speed steel twist drill shank and the connecting rod, drive the high-speed steel twist drill shank to move down, and cause the adjusting rod to pull the positioning rod to retract, thereby releasing the fixation of the high-speed steel twist drill and realizing the convenient disassembly of the high-speed steel twist drill. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of the high-speed steel twist drill shank of this utility model;

[0018] Figure 3 This is a schematic diagram of the connection structure between the positioning rod and the adjusting rod of this utility model;

[0019] Figure 4 This is a cross-sectional view of the connecting rod of this utility model.

[0020] In the diagram: 1. High-speed steel twist drill bit; 2. High-speed steel twist drill shank; 3. Spring 1; 4. Moving rod; 5. Fixing plate; 6. Positioning rod; 7. Adjusting rod; 8. Connecting rod; 9. Limiting hole; 10. Spring 2; 11. Limiting rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-4 The present invention provides the following technical solution: a high-speed steel twist drill that is easy to fix, including a high-speed steel twist drill bit 1, a high-speed steel twist drill shank 2 installed above the high-speed steel twist drill bit 1, a spring 3 connected inside the high-speed steel twist drill shank 2, a moving rod 4 connected to the end of the spring 3, a fixing plate 5 installed at the upper end of the moving rod 4, a positioning rod 6 hinged to the side of the fixing plate 5, an adjusting rod 7 hinged to the end of the positioning rod 6 away from the fixing plate 5, and the end of the adjusting rod 7 away from the positioning rod 6 hinged to the upper end of the high-speed steel twist drill shank 2.

[0023] Preferably, the moving rod 4 has an inverted "T" shaped structure. The moving rod 4 slides through the upper end of the high-speed steel twist drill shank 2, which can realize the smooth movement of the moving rod 4, and the spring 3 is assembled between the moving rod 4 and the high-speed steel twist drill shank 2.

[0024] Preferably, both the positioning rod 6 and the adjusting rod 7 are inclined and are distributed at equal angles on the fixed plate 5 and the high-speed steel twist drill shank 2. The adjusting rod 7 can realize the linkage between the high-speed steel twist drill shank 2 and the positioning rod 6. When the high-speed steel twist drill shank 2 moves, the adjusting rod 7 drives the positioning rod 6 to rotate.

[0025] A spring 10 is connected to the side wall of the high-speed steel twist drill shank 2, and a limit rod 11 is installed at the end of the spring 10; a connecting rod 8 is installed at the lower end of the moving rod 4, and a limit hole 9 is opened on the side of the connecting rod 8.

[0026] Preferably, the limiting holes 9 are evenly distributed on the connecting rod 8, and the top surface of the limiting holes 9 is inclined. The limiting rod 11 slides through the side wall of the high-speed steel twist drill shank 2, and the upper side of the end of the limiting rod 11 that extends into the high-speed steel twist drill shank 2 is inclined. The limiting rod 11 and the limiting hole 9 engage with each other, and the inclined surface of the limiting rod 11 contacts the inclined surface of the limiting hole 9, which can limit the movement direction of the limiting rod 11, so that the limiting rod 11 can move upward with the high-speed steel twist drill shank 2, while the limiting hole 9 restricts the limiting rod 11 from moving downward automatically with the high-speed steel twist drill shank 2, ensuring that the positioning rod 6 remains open, and realizing the stable installation of the high-speed steel twist drill.

[0027] Specifically, holding the high-speed steel twist drill bit 1, the high-speed steel twist drill shank 2 is gradually inserted into the mounting slot of the electric drill connection part. When the top of the fixing plate 5 is in contact with the top of the mounting slot, the high-speed steel twist drill bit 1 is pushed upward. At this time, the high-speed steel twist drill shank 2 is moved upward under force, causing it to slide on the moving rod 4. The high-speed steel twist drill shank 2 stretches and stores force on the spring 3. Simultaneously, the high-speed steel twist drill shank 2 pushes the adjusting rod 7 hinged at the end, causing the adjusting rod 7 to rotate. The adjusting rod 7 pushes the positioning rod 6 hinged at the end to rotate on the fixing plate 5. The positioning rod 6 gradually unfolds, and as the high-speed steel twist drill shank 2 moves upward, the limiting rod 1 connected to the side of the high-speed steel twist drill shank 2... 1. Simultaneously moving upwards, since the upper side of the limiting rod 11 and the upper side of the limiting hole 9 are inclined, when the limiting rod 11 moves upwards along with the high-speed steel twist drill shank 2, it can push the limiting rod 11 to move away from the connecting rod 8. At the same time, the limiting rod 11 compresses and stores the spring 10, so that the limiting rod 11 crosses the limiting hole 9 at the lower position and engages with the limiting hole 9 at the upper position until the positioning rod 6 is tightly engaged with the mounting groove of the electric drill connection part. By using the engagement of the limiting rod 11 and the limiting hole 9, the positions of the connecting rod 8 and the high-speed steel twist drill shank 2 are locked, thereby locking the relative position of the high-speed steel twist drill shank 2 and the fixing plate 5, so that the positioning rod 6 remains in the unfolded state, realizing the rapid fixing of the high-speed steel twist drill.

[0028] When the high-speed steel twist drill needs to be disassembled, simply pull the limiting rod 11 away from the connecting rod 8, so that the limiting rod 11 moves out of the limiting hole 9, releasing the lock between the high-speed steel twist drill shank 2 and the connecting rod 8. Then, control the high-speed steel twist drill shank 2 to move downward, so that the adjusting rod 7 hinged at the end of the high-speed steel twist drill shank 2 rotates in the opposite direction, thereby causing the adjusting rod 7 to pull the positioning rod 6 to rotate in the opposite direction and retract, releasing the fixation of the high-speed steel twist drill and making it easy to disassemble. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0029] 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 described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A conveniently fixed high-speed steel twist drill, comprising a high-speed steel twist drill bit (1), characterized in that: A high-speed steel twist drill shank (2) is installed above the high-speed steel twist drill bit (1). A spring (3) is connected inside the high-speed steel twist drill shank (2). A moving rod (4) is connected to the end of the spring (3). A fixed plate (5) is installed at the upper end of the moving rod (4). A positioning rod (6) is hinged to the side of the fixed plate (5). An adjusting rod (7) is hinged to the end of the positioning rod (6) away from the fixed plate (5). The end of the adjusting rod (7) away from the positioning rod (6) is hinged to the upper end of the high-speed steel twist drill shank (2). A second spring (10) is connected to the side wall of the high-speed steel twist drill shank (2), and a limit rod (11) is installed at the end of the second spring (10). A connecting rod (8) is installed at the lower end of the moving rod (4), and a limit hole (9) is opened on the side of the connecting rod (8).

2. The high-speed steel twist drill that is easy to fix according to claim 1, characterized in that: The movable rod (4) has an inverted "T" shape and slides through the upper end of the high-speed steel twist drill shank (2).

3. The high-speed steel twist drill that is easy to fix according to claim 1, characterized in that: The positioning rod (6) and the adjusting rod (7) are both distributed at an angle, and the positioning rod (6) and the adjusting rod (7) are distributed at equal angles on the fixing plate (5) and the high-speed steel twist drill shank (2).

4. The high-speed steel twist drill that is easy to fix according to claim 1, characterized in that: The limiting holes (9) are evenly distributed on the connecting rod (8), and the top surface inside the limiting holes (9) is inclined.

5. A high-speed steel twist drill that is easy to fix according to claim 1, characterized in that: The limiting rod (11) slides through the side wall of the high-speed steel twist drill shank (2), and the upper side of the end of the limiting rod (11) that extends into the high-speed steel twist drill shank (2) is inclined.

6. A high-speed steel twist drill that is easy to fix according to claim 1, characterized in that: The limiting rod (11) engages with the limiting hole (9), and the inclined surface of the limiting rod (11) contacts the inclined surface of the limiting hole (9).

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