A special cutter for threading a small-diameter hole

Abstract

The utility model belongs to the technical field of machining, especially is a small diameter hole thread turning special cutter, including mounting seat, the inside installation of mounting seat has handle, one end of handle is fixedly connected with processing knife, the other end fixedly connected with connecting frame of processing knife, the inside rotationally connected with pivot of mounting seat, one end of pivot penetrates one side of mounting seat and extends to outside, one end fixedly connected with carousel of pivot, both sides of the outer wall of pivot all are equipped with moving plate. The utility model discloses through rotating carousel, when carousel rotates, drives the synchronous rotation of the pivot fixedly connected with it, and then makes the rotation of pivot drive the relative movement of the moving plate of left and right sides along the direction of guide rod, to drive the synchronous movement of the clamping frame fixed on the moving plate, and the outer wall of connecting frame is engaged with the clamping groove of four corners of clamping frame, plays the positioning and stable support effect, can change the processing knife of different models.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, specifically a special tool for turning small-diameter internal threads. Background Technology

[0002] With the development of precision machining technology, thread machining is widely used in aerospace, precision instruments, automobile manufacturing and other fields. Especially in the machining of small-diameter internal threads, the machining of small-diameter internal threads currently relies mostly on custom-made tools or manual adjustment methods. This not only increases the complexity of the operation, but also makes it difficult for the tool to penetrate deeply or make stable cuts when machining deep holes, long holes or special thread structures, affecting thread quality and production efficiency. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a special tool for turning small-diameter internal threads. This solves the problem that the current machining of small-diameter internal threads relies heavily on custom-made tools or manual adjustments, which not only increases the complexity of operation but also makes it difficult for the tool to penetrate deeply or make stable cuts when machining deep holes, long holes, or special thread structures, thus affecting thread quality and production efficiency.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a special tool for turning small-diameter internal threads, comprising a mounting base, a tool holder installed inside the mounting base, a machining tool fixedly connected to one end of the tool holder, a connecting frame fixedly connected to the other end of the machining tool, a rotating shaft rotatably connected inside the mounting base, one end of the rotating shaft passing through one side of the mounting base and extending to the outside, a turntable fixedly connected to one end of the rotating shaft, movable plates installed on both sides of the outer wall of the rotating shaft, the lower surface of the movable plates slidably connected to the inner wall of the mounting base, a clamping bracket fixedly connected to adjacent surfaces of the movable plates, and a clamping groove provided at each of the four corners of the clamping bracket, the inner wall of the clamping groove being clamped to the outer wall of the connecting frame.

[0005] As a preferred embodiment of this utility model, a screw hole is provided on one side of the surface of the turntable, and a screw rod is threadedly connected to the inner wall of the screw hole. A positioning groove is provided on one side of the outer wall of the mounting base, and the outer wall of the screw rod is engaged with the inner wall of the positioning groove.

[0006] As a preferred embodiment of this utility model, guide rods are fixedly connected to both sides of the interior of the mounting base, and the lower sides of the surface of the movable plate are slidably connected to the outer wall of the guide rods.

[0007] As a preferred technical solution of this utility model, the outer wall of the rotating shaft is provided with threads on both sides, and the threads on both sides are arranged in opposite directions.

[0008] As a preferred embodiment of this utility model, the connecting frame is configured as a cross bar, and the diameter of the connecting frame is smaller than the diameter of one end of the tool handle.

[0009] Compared with the prior art, this utility model provides a special tool for turning small-diameter internal threads, which has the following advantages:

[0010] This is a special tool for turning small-diameter internal threads. When the turntable rotates, it drives the rotating shaft fixed to it to rotate synchronously. Since the rotating shaft has threaded structures in opposite directions on both sides, it is connected to the moving plate to form a screw transmission mechanism. Therefore, the rotation of the rotating shaft will drive the moving plates on the left and right sides to move relative to each other along the direction of the guide rod, thereby driving the clamp fixed on the moving plate to move synchronously. The clamp engages with the outer wall of the connecting frame through the clamping grooves at its four corners, playing a role in positioning and stable support, thus enabling the replacement of different types of machining tools. Attached Figure Description

[0011] Figure 1 This is a perspective view of the present utility model;

[0012] Figure 2 This is a schematic diagram of the structure of this utility model;

[0013] Figure 3 This is a cross-sectional view of the structure of this utility model;

[0014] Figure 4 This is a structural development diagram of the present invention.

[0015] In the diagram: 1. Mounting base; 2. Tool holder; 3. Machining tool; 4. Connecting bracket; 5. Rotary shaft; 6. Turntable; 7. Moving plate; 8. Card holder; 9. Card slot; 10. Guide rod; 11. Screw hole; 12. Screw; 13. Positioning slot. Detailed Implementation

[0016] 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.

[0017] Example 1

[0018] Please see Figure 1-4In this embodiment: a special tool for turning small-diameter internal threads includes a mounting base 1, a tool holder 2 is installed inside the mounting base 1, a machining tool 3 is fixedly connected to one end of the tool holder 2, a connecting frame 4 is fixedly connected to the other end of the machining tool 3, a rotating shaft 5 is rotatably connected inside the mounting base 1, one end of the rotating shaft 5 passes through one side of the mounting base 1 and extends to the outside, a turntable 6 is fixedly connected to one end of the rotating shaft 5, movable plates 7 are installed on both sides of the outer wall of the rotating shaft 5, the lower surface of the movable plates 7 is slidably connected to the inner wall of the mounting base 1, a clamping bracket 8 is fixedly connected to the adjacent surfaces of the movable plates 7, and a clamping groove 9 is opened at each of the four corners of the clamping bracket 8, the inner wall of the clamping groove 9 is clamped to the outer wall of the connecting frame 4;

[0019] In this embodiment, by rotating the turntable 6, the rotating shaft 5 fixedly connected to it will rotate synchronously. Since the rotating shaft 5 has threaded structures in opposite directions on both sides, it is connected with the moving plate 7 to form a screw transmission mechanism. Therefore, the rotation of the rotating shaft 5 will drive the moving plates 7 on the left and right sides to move relative to each other along the direction of the guide rod 10, thereby driving the card holder 8 fixed on the moving plate to move synchronously. The card holder 8 engages with the outer wall of the connecting frame 4 through the card slots 9 at its four corners, playing a positioning and stable support role, thereby enabling the replacement of different types of processing tools 3.

[0020] Furthermore, a screw hole 11 is provided on one side of the surface of the turntable 6, and a screw rod 12 is threadedly connected to the inner wall of the screw hole 11. A positioning groove 13 is provided on one side of the outer wall of the mounting base 1, and the outer wall of the screw rod 12 is engaged with the inner wall of the positioning groove 13.

[0021] The turntable 6 has screw holes 11 on its surface. By tightening the screw 12, the end of the screw can be embedded in the positioning groove 13 on the side of the mounting base 1, so as to accurately lock the position of the turntable 6, thereby indirectly fixing the position of the rotating shaft 5, avoiding displacement during the processing, and ensuring the continuity and safety of the processing.

[0022] Preferably, guide rods 10 are fixedly connected to both sides of the interior of the mounting base 1, and the lower sides of the surface of the movable plate 7 are slidably connected to the outer wall of the guide rods 10.

[0023] Preferably, the outer wall of the rotating shaft 5 is threaded on both sides, and the threads on both sides are arranged in opposite directions.

[0024] Preferably, the connecting frame 4 is configured as a cross bar, and the diameter of the connecting frame 4 is smaller than the diameter of one end of the tool holder 2.

[0025] The working principle and usage process of this utility model are as follows: By rotating the turntable 6, the rotating shaft 5 fixedly connected to it will rotate synchronously. Since the rotating shaft 5 has threaded structures in opposite directions on both sides, it is connected with the moving plate 7 to form a screw transmission mechanism. Therefore, the rotation of the rotating shaft 5 will drive the moving plates 7 on the left and right sides to move relative to each other along the direction of the guide rod 10, thereby driving the clamp 8 fixed on the moving plate to move synchronously. The clamp 8 engages with the outer wall of the connecting frame 4 through the clamping grooves 9 at its four corners, playing a role in positioning and stable support, so that different types of processing tools 3 can be replaced. The surface of the turntable 6 is provided with screw holes 11. By tightening the screw 12, the end of the screw can be embedded in the positioning groove 13 on the side of the mounting base 1, realizing the precise locking of the position of the turntable 6, thereby indirectly fixing the position of the rotating shaft 5, avoiding displacement during processing, and ensuring the continuity and safety of the processing process.

[0026] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A special tool for turning small-diameter internal threads, comprising a mounting base (1), characterized in that: The mounting base (1) is equipped with a tool holder (2). One end of the tool holder (2) is fixedly connected to a machining tool (3). The other end of the machining tool (3) is fixedly connected to a connecting frame (4). The mounting base (1) is rotatably connected to a rotating shaft (5). One end of the rotating shaft (5) passes through one side of the mounting base (1) and extends to the outside. One end of the rotating shaft (5) is fixedly connected to a turntable (6). Movable plates (7) are installed on both sides of the outer wall of the rotating shaft (5). The lower surface of the movable plate (7) is slidably connected to the inner wall of the mounting base (1). Adjacent surfaces of the movable plate (7) are fixedly connected to a card holder (8). Card slots (9) are opened at the four corners of the card holder (8). The inner wall of the card slot (9) is locked to the outer wall of the connecting frame (4).

2. The special tool for turning small-diameter internal threads according to claim 1, characterized in that: A screw hole (11) is provided on one side of the surface of the turntable (6), and a screw (12) is threadedly connected to the inner wall of the screw hole (11). A positioning groove (13) is provided on one side of the outer wall of the mounting base (1), and the outer wall of the screw (12) is engaged with the inner wall of the positioning groove (13).

3. A special tool for turning small-diameter internal threads according to claim 1, characterized in that: Guide rods (10) are fixedly connected to both sides of the interior of the mounting base (1), and the lower sides of the surface of the movable plate (7) are slidably connected to the outer wall of the guide rods (10).

4. A special tool for turning small-diameter internal threads according to claim 1, characterized in that: The outer wall of the rotating shaft (5) is threaded on both sides, and the threads on both sides are arranged in opposite directions.

5. A special tool for turning small-diameter internal threads according to claim 1, characterized in that: The connecting frame (4) is a cross-shaped rod, and the diameter of the connecting frame (4) is smaller than the diameter of one end of the handle (2).

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