A tapping machine facilitating replacement of a tap

Abstract

The utility model discloses a tapping machine convenient to change tap, including the outside movable joint of main part has the connecting plate, the outside rotation of connecting plate is connected with fixed sleeve, the inner wall fixed connection of fixed sleeve has a plurality of connecting sleeves, the inner wall of a plurality of connecting sleeves all slidingly connected with the limit ring, the outside fixed connection of limit ring has the top cover, the one end fixed connection of top cover away from limit ring has the sliding board, the inner wall fixed connection of top cover has spring no.

Description

Technical Field

[0001] This utility model relates to the field of tapping machine technology, and more specifically, to a tapping machine that facilitates tap replacement. Background Technology

[0002] A tapping machine is a machine tool that uses taps to machine internal threads. It consists of a motor, control system, and feed mechanism. By precisely controlling the rotation and feed of the tap, it machines internal threads on the inner surface of holes in hard materials such as metal. It has advantages such as high speed, high precision, high degree of automation, and simple operation, which can significantly improve production efficiency and product quality. It is widely used in many fields such as machinery manufacturing, automobiles, and aerospace.

[0003] Publication No. (CN219598306U) discloses a tapping machine that facilitates tap replacement, including a base, a column mounted on the top of the base, and a tapping machine mounting base mounted on one end of the column. The mounting base has a movable groove inside, and a first electric push rod is installed inside the movable groove. A movable plate is mounted on the output end of the first electric push rod, and a first motor is installed inside the movable plate. This invention, by setting a replacement mechanism, allows for rapid disassembly and installation of the first and second connecting blocks by rotating a handwheel and through the action of a threaded connection, as well as the cooperation of a fixed block and a fixed groove. It also ensures the stability of the connection between the two, allowing for the replacement of taps of different sizes to meet different user needs. Furthermore, when the taps are worn, they can be replaced, thus greatly extending the service life of the tapping machine.

[0004] However, this tapping machine, which facilitates tap replacement, has the following drawbacks: it cannot achieve horizontal alignment between the tapping part and the machining part during the tapping preparation process, which will cause the tap to deviate at the angle when it enters the workpiece. The axis of the machined threaded hole is not perpendicular to the workpiece surface, affecting the perpendicularity and concentricity of the thread, reducing machining accuracy. The misalignment between the tapping part and the machining part will cause the tap to break inside the workpiece, which will not only damage the tap but may also damage the workpiece, leading to the scrapping of the workpiece, wasting raw materials and machining time, and increasing production costs. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a tapping machine that facilitates tap replacement, so as to solve the problem that the tapping part and the processing part cannot be horizontally aligned during the tapping preparation process in the prior art.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a tapping machine that facilitates tap replacement, comprising...

[0007] The main body is externally connected to a connecting plate, and the connecting plate is rotatably connected to a fixed sleeve. Multiple connecting sleeves are fixedly connected to the inner wall of the fixed sleeve. Limiting rings are slidably connected to the inner walls of each of the multiple connecting sleeves. A top sleeve is fixedly connected to the outside of the limiting rings. A sliding plate is fixedly connected to the end of the top sleeve away from the limiting rings. A spring is fixedly connected to the inner wall of the top sleeve. A positioning ring is slidably connected to the outside of the sliding plate. Multiple limiting grooves are formed on the inner wall of the positioning ring. Multiple sliders are fixedly connected to the inner wall of the positioning ring. A rotating column is slidably connected to the outside of the sliders. Multiple sliding grooves are formed on the outside of the rotating column. A locking assembly with multiple subsequent components is slidably connected to the inner wall of the rotating column.

[0008] The locking assembly includes two buttons, which are slidably connected to the inner wall of the rotating column. An arc-shaped locking plate is fixedly connected to the outside of each button. A spring is fixedly connected to the outside of the arc-shaped locking plate. A roller is slidably connected to the outside of the arc-shaped locking plate. A locking post is connected to the rotation of the roller. A tap is movably connected to the inner wall of the rotating column. A locking groove is formed on the outside of the tap.

[0009] A rubber pad is fixedly connected to the outside of the positioning ring, and a micro motor is fixedly connected to the end of the connecting plate away from the fixing sleeve.

[0010] The drive end of the micro motor is fixedly connected to a rotating column, and the outer side of the rotating column is in contact with the inner wall of the fixed sleeve.

[0011] The arc-shaped clamping plate is externally movably connected to the inner wall of the rotating column, and both ends of the clamping column are fixedly connected to the inner wall of the rotating column.

[0012] The end of the spring away from the arc-shaped plate is fixedly connected to the inner wall of the rotating column, and the end of the arc-shaped plate away from the button is movably connected to the inner wall of the slot.

[0013] One end of the spring away from the sliding plate is fixedly connected to the inner wall of the connecting sleeve, and the outer side of the sliding plate is slidably connected to the inner wall of the limiting groove.

[0014] The outer side of the top sleeve is slidably connected to the inner wall of the connecting sleeve, and the end of the slider away from the positioning ring is slidably connected to the inner wall of the slide groove.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] In the above solution, by aligning the positioning ring with the part to be processed, and then pressing down on the positioning ring to align it with the plane of the part, the positioning ring and the part to be processed are made to reach a uniform horizontal state. This prevents deviation during processing. When the positioning ring applies pressure to the part, the rubber pad in the positioning ring will press tightly against the outside of the part to prevent rigid collision between the positioning ring and the part. The positioning ring will also apply pressure to the connecting sleeve through the sliding plate. At this time, the spring will be compressed by the pressure to satisfy the movement space of the positioning ring. At the same time, the slider will slide inside the slide groove to guide and prevent deviation during movement. During horizontal alignment, the adjusting component in the main body is adjusted and then fixed, and then the alignment operation is completed. This achieves accuracy in the tapping process, improves work efficiency, and extends the service life of the equipment.

[0017] In the above scheme, by setting a lock, after the tap is inserted into the rotating column, the tap will contact the arc-shaped clamp. Since the contact surface of the arc-shaped clamp with the tap is sloped, while the tap is pressing against the arc-shaped clamp, the arc-shaped clamp moves on the surface of the roller, creating a oscillating state that compresses the second spring. The second spring contracts and releases potential energy to satisfy the movement space of the arc-shaped clamp, allowing it to slide on the surface of the tap. During continuous insertion and movement, the arc-shaped clamp will encounter a groove. Due to the characteristics of the second spring, the arc-shaped clamp will be locked inside the groove, thus completing the installation of the tap. When disassembly is required, pressing the button will cause the arc-shaped clamp to press against the second spring. The arc-shaped clamp will then oscillate on the surface of the roller, thus disengaging from the groove and enabling quick tap replacement, improving work efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the positioning ring structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the slider structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the slide groove structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the card slot structure of this utility model;

[0023] Figure 6 This is a schematic diagram of the arc-shaped card plate structure of this utility model;

[0024] Figure 7 for Figure 4 Enlarged view of point A in the middle.

[0025] [Figure Labels]

[0026] 1. Main body; 2. Connecting plate; 3. Fixing sleeve; 4. Connecting sleeve; 5. Limiting ring; 6. Top sleeve; 7. Sliding plate; 8. Spring 1; 9. Positioning ring; 10. Limiting groove; 11. Slider; 12. Rotating column; 13. Slide groove; 14. Button; 15. Arc-shaped retaining plate; 16. Spring 2; 17. Roller; 18. Retaining column; 19. Tap; 20. Retaining groove; 21. Rubber pad; 22. Miniature motor. Detailed Implementation

[0027] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0028] As attached Figure 1 To be continued Figure 7 An embodiment of this utility model provides a tapping machine that facilitates tap replacement, including...

[0029] The main body 1 is externally connected to a connecting plate 2. The main body 1 serves as the primary support structure for the tapping machine, providing the mounting base. The connecting plate 2 is movably connected to the main body 1, allowing it to move and adjust relative to the main body 1 to a certain extent. A fixed sleeve 3 is rotatably connected to the outside of the connecting plate 2. The fixed sleeve 3 is rotatably connected to the connecting plate 2 and can rotate under the influence of the connecting plate 2. It also provides fixed support for the connecting sleeve 4, ensuring stability during the tapping process. Multiple connecting sleeves 4 are fixedly connected to the inner wall of the fixed sleeve 3. These connecting sleeves 4 are evenly distributed on the inner wall of the fixed sleeve 3, providing a sliding track for the limiting ring 5. When the positioning ring 9 is pressed down, they bear the pressure from the sliding plate 7, and the movement and buffering of the positioning ring 9 are achieved through the action of the spring 8.

[0030] Multiple connecting sleeves 4 have slidably connected limit rings 5 ​​on their inner walls. The limit rings 5 ​​slide within the connecting sleeves 4, restricting the movement range of the top sleeve 6 and ensuring its stable movement along the direction of the connecting sleeves 4 when subjected to external force, while also providing support for the top sleeve 6. The top sleeve 6 is fixedly connected to the outside of the limit rings 5. The top sleeve 6 is connected to the limit rings 5 ​​and moves as the limit rings 5 ​​slide within the connecting sleeves 4. One end of the top sleeve 6 is connected to a sliding plate 7, and the other end is connected to the inner wall of the connecting sleeve 4 via a spring-8. When the positioning ring 9 is pressed down, it transmits pressure and provides cushioning. The end of the top sleeve 6 furthest from the limit rings 5 ​​is fixedly connected to a sliding plate 7. The sliding plate 7 is fixedly connected to the top sleeve 6. When the positioning ring 9 is pressed down by external force, the sliding plate 7 moves with the top sleeve 6 and slides within the limiting groove 10, providing guidance and support for the movement of the positioning ring 9 and transmitting the pressure of the positioning ring 9 to the spring-8.

[0031] A spring 8 is fixedly connected to the inner wall of the top sleeve 6. One end of the spring 8 is connected to the inner wall of the top sleeve 6, and the other end is connected to the inner wall of the connecting sleeve 4. When the positioning ring 9 is pressed down, the spring 8 is compressed, providing a buffer space for the movement of the positioning ring 9. After the pressure is released, the positioning ring 9 returns to its initial position. A positioning ring 9 is slidably connected to the outside of the sliding plate 7. The positioning ring 9 is slidably connected to the sliding plate 7 and can move up and down under the support of the sliding plate 7. Its main function is to align with the part to be processed, and to achieve precise positioning of the tapping position by pressing down and contacting the surface of the part. Multiple limiting grooves 10 are formed on the inner wall of the positioning ring 9. The limiting grooves 10 cooperate with the sliding plate 7 to restrict the movement direction of the sliding plate 7, ensuring that the sliding plate 7 can only slide within the range of the limiting grooves 10, thereby making the movement of the positioning ring 9 more stable and precise.

[0032] Multiple sliders 11 are fixedly connected to the inner wall of the positioning ring 9. The sliders 11 are fixed to the inner wall of the positioning ring 9 and cooperate with the grooves 13 on the rotating column 12. When the positioning ring 9 moves, the sliders 11 slide within the grooves 13, acting as guides to prevent the positioning ring 9 from shifting during movement and ensuring the accuracy of the tapping position. The rotating column 12 is slidably connected to the outside of the sliders 11. The rotating column 12 is an important component of the tapping machine. Its external grooves 13 cooperate with the sliders 11 to guide the movement of the positioning ring 9. Simultaneously, its interior is used to install the tap 19, which rotates under the drive of the micro motor 22 to achieve the tapping function. Multiple grooves 13 are formed on the outside of the rotating column 12. The grooves 13 match the sliders 11, providing a sliding track for the sliders 11, allowing the positioning ring 9 to move stably up and down along the direction of the rotating column 12, ensuring the accuracy of positioning during the tapping process. A locking assembly is slidably connected to the inner wall of the rotating column 12. The locking assembly is used to stably install the tap 19 inside the rotating column 12. Through its cooperation with the tap 19, the tap 19 can be quickly installed and removed, thereby improving the working efficiency of the tapping machine.

[0033] The locking assembly includes two buttons 14. Buttons 14 are the operating components of the locking assembly; pressing the buttons 14 controls the movement of the arc-shaped clamping plate 15, enabling the installation and removal of the tap 19. The two buttons 14 are externally slidably connected to the inner wall of the rotating column 12. The sliding of the buttons 14 within the rotating column 12 allows for convenient pressing when needed, while also ensuring the stability of the connection between the buttons 14 and the rotating column 12, preventing loosening or displacement during tapping.

[0034] An arc-shaped retaining plate 15 is fixedly connected to the external side of button 14. The arc-shaped retaining plate 15 is fixedly connected to button 14 and moves under the action of button 14. Its contact surface with the tap 19 is sloped. When the tap 19 is inserted into the rotating column 12, it can install and lock the tap 19 through its own swing. When the tap 19 needs to be disassembled, pressing button 14 causes the arc-shaped retaining plate 15 to leave the slot 20, achieving quick disassembly of the tap 19. A second spring 16 is fixedly connected to the external side of the arc-shaped retaining plate 15. One end of the second spring 16 is connected to the arc-shaped retaining plate 15, and the other end is connected to the inner wall of the rotating column 12. When the arc-shaped retaining plate 15 is squeezed by the tap 19 or pressed by button 14, the second spring 16 provides power and buffer for the swing of the arc-shaped retaining plate 15 by contracting and releasing potential energy, ensuring that the arc-shaped retaining plate 15 can accurately cooperate with the slot 20, realizing the installation and disassembly of the tap 19.

[0035] A roller 17 is slidably connected to the outside of the arc-shaped clamping plate 15. The roller 17 is slidably connected to the arc-shaped clamping plate 15, allowing it to roll on its surface during oscillation, reducing friction and making the oscillation smoother. This also ensures the stability of the arc-shaped clamping plate 15 during movement. A locking post 18 is rotatably connected to the roller 17. The locking post 18 is fixed to the inner wall of the rotating post 12, and the roller 17 is rotatably connected to it, providing support and a rotation axis for the roller 17. This ensures the roller 17 can rotate normally under the action of the arc-shaped clamping plate 15, thus making the oscillation of the arc-shaped clamping plate 15 more flexible.

[0036] A tap 19 is movably connected to the inner wall of the rotating column 12. The tap 19 is a component of the tapping machine used for tapping workpieces. It is movably connected to the rotating column 12 via a locking assembly, allowing it to rotate under the drive of the rotating column 12 and facilitating replacement when needed. A slot 20 is provided on the outside of the tap 19. The slot 20 cooperates with an arc-shaped retaining plate 15. When the tap 19 is inserted into the rotating column 12, the arc-shaped retaining plate 15, under the action of a spring 16, engages with the slot 20, thus installing and locking the tap 19 and ensuring that it does not loosen or fall off during the tapping process.

[0037] A rubber pad 21 is fixedly connected to the outside of the positioning ring 9. The rubber pad 21 is fixed to the outside of the positioning ring 9. When the positioning ring 9 is pressed down and contacts the part to be processed, the rubber pad 21 can tightly adhere to the surface of the part, preventing rigid collision between the positioning ring 9 and the part, thus providing cushioning and protection. It also increases the friction between the positioning ring 9 and the part, making the positioning more stable. A micro motor 22 is fixedly connected to the end of the connecting plate 2 away from the fixing sleeve 3. The micro motor 22 provides power to the tapping machine. It is fixed to the connecting plate 2 and fixedly connected to the rotating column 12 through its drive end. It can drive the rotating column 12 to rotate, thereby causing the tap 19 installed inside the rotating column 12 to rotate, achieving the tapping function.

[0038] A rotating column 12 is fixedly connected to the drive end of the micro motor 22. Driven by the micro motor 22, the rotating column 12 rotates, transmitting power from the micro motor 22 to the tap 19, enabling the tap 19 to perform tapping on the workpiece. Simultaneously, it contacts the inner wall of the fixed sleeve 3, ensuring the stability of the rotating column 12 during rotation. The outer surface of the rotating column 12 contacts the inner wall of the fixed sleeve 3. The inner wall of the fixed sleeve 3 provides support and limits for the rotating column 12, ensuring that it does not wobble or shift during rotation. It also provides a stable environment for the rotation of the rotating column 12, which is beneficial for improving the accuracy and quality of tapping.

[0039] The arc-shaped clamping plate 15 is externally and movably connected to the inner wall of the rotating column 12. This movable connection allows the arc-shaped clamping plate 15 to swing and move within the rotating column 12 during the insertion and removal of the tap 19, enabling it to engage with the slot 20 and complete the installation and removal of the tap 19. It also ensures the stability of the arc-shaped clamping plate 15 during the tapping process, preventing any impact on the normal operation of the tap 19. The two ends of the clamping post 18 are fixedly connected to the inner wall of the rotating column 12. This provides stable support for the roller 17, ensuring its normal rotation within the rotating column 12. This allows the arc-shaped clamping plate 15 to swing smoothly via the rolling of the roller 17, improving the efficiency of tap installation and removal.

[0040] One end of spring 16, away from the arc-shaped clamping plate 15, is fixedly connected to the inner wall of the rotating column 12. One end of spring 16 is fixed to the inner wall of the rotating column 12, and the other end is connected to the arc-shaped clamping plate 15. When the arc-shaped clamping plate 15 is subjected to external force, spring 16 can provide power and buffer for the swing of the arc-shaped clamping plate 15 by contracting and releasing potential energy, ensuring that the arc-shaped clamping plate 15 can accurately engage with the slot 20, thus enabling the installation and removal of the tap 19. The end of the arc-shaped clamping plate 15, away from the button 14, is movably connected to the inner wall of the slot 20. One end of the arc-shaped clamping plate 15 is fixedly connected to the button 14, and the other end is movably connected to the inner wall of the slot 20. When the tap 19 is inserted into the rotating column 12, the arc-shaped clamping plate 15 is engaged in the slot 20 under the action of the spring 16, thereby realizing the installation and locking of the tap 19. When it is necessary to disassemble the tap 19, the arc-shaped clamping plate 15 is disassembled from the slot 20 by pressing the button 14, thereby realizing the quick disassembly of the tap 19.

[0041] The end of spring 8 furthest from sliding plate 7 is fixedly connected to the inner wall of connecting sleeve 4. One end of spring 8 is connected to sliding plate 7, and the other end is connected to the inner wall of connecting sleeve 4. When positioning ring 9 is pressed down, spring 8 is compressed, providing buffer space for the movement of positioning ring 9. After the pressure disappears, positioning ring 9 returns to its initial position, ensuring accurate alignment of positioning ring 9 with the part to be machined. The outer surface of sliding plate 7 is slidably connected to the inner wall of limiting groove 10. Sliding plate 7 slides within limiting groove 10, which restricts the direction of movement of sliding plate 7, ensuring that sliding plate 7 can only move up and down within the range of limiting groove 10. This makes the movement of positioning ring 9 more stable and precise, improving tapping accuracy.

[0042] The top sleeve 6 is externally slidably connected to the inner wall of the connecting sleeve 4. The top sleeve 6 slides within the connecting sleeve 4, allowing it to move within the connecting sleeve 4 along with the limiting ring 5 when the positioning ring 9 is pressed down. This transmits the pressure of the positioning ring 9 to the spring 8, ensuring the stability of the top sleeve 6 during movement and preventing deviation or wobbling. The end of the slider 11 furthest from the positioning ring 9 is slidably connected to the inner wall of the slide groove 13. One end of the slider 11 is fixed to the inner wall of the positioning ring 9, while the other end slides within the slide groove 13. As the positioning ring 9 moves, the slider 11 slides within the slide groove 13, acting as a guide to prevent deviation of the positioning ring 9 during movement, ensuring the accuracy of the tapping position, and providing some support for the movement of the positioning ring 9.

[0043] The working process of this utility model is as follows:

[0044] First, by aligning the positioning ring 9 with the part to be processed, and then pressing down on the positioning ring 9 to align it with the plane of the part, the positioning ring 9 and the part to be processed are made to reach a uniform horizontal state, so that no deviation will occur during processing. When the positioning ring 9 applies pressure to the part, the rubber pad 21 in the positioning ring 9 will tightly adhere to the outside of the part to prevent rigid collision between the positioning ring 9 and the part. The positioning ring 9 will also apply pressure to the connecting sleeve 4 through the sliding plate 7. At this time, the spring 8 will be compressed under pressure to satisfy the movement space of the positioning ring 9. At the same time, the slider 11 will slide inside the slide groove 13 to guide and prevent deviation during movement. During horizontal alignment, the adjusting component in the main body 1 is adjusted and then fixed, and then the alignment operation is completed. This achieves accuracy in the tapping process, improves work efficiency, and extends the service life of the equipment.

[0045] After the tap 19 is inserted into the rotating column 12, the tap 19 will contact the arc-shaped clamping plate 15. Since the contact surface between the arc-shaped clamping plate 15 and the tap 19 is sloped, while the tap 19 is pressing against the arc-shaped clamping plate 15, the arc-shaped clamping plate 15 moves on the surface of the roller 17, creating a oscillating state that compresses the second spring 16. The second spring 16 contracts and releases potential energy to satisfy the movement space of the arc-shaped clamping plate 15, allowing the arc-shaped clamping plate 15 to slide on the surface of the tap 19. During continuous insertion and movement, the arc-shaped clamping plate 15 encounters the groove 20. Due to the characteristics of the second spring 16, the arc-shaped clamping plate 15 is locked inside the groove 20, thus completing the installation of the tap 19. When disassembly is required, pressing the button 14 causes the arc-shaped clamping plate 15 to press against the second spring 16. The arc-shaped clamping plate 15 then swings on the surface of the roller 17, thus disengaging from the groove 20. This enables quick tap replacement and improves work efficiency.

[0046] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0047] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0048] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tapping machine that facilitates tap replacement, characterized in that, The main body (1) is externally connected to a connecting plate (2), and the connecting plate (2) is externally rotatably connected to a fixed sleeve (3). The inner wall of the fixed sleeve (3) is fixedly connected to multiple connecting sleeves (4). The inner walls of the multiple connecting sleeves (4) are slidably connected to limit rings (5). The outer side of the limit rings (5) is fixedly connected to a top sleeve (6). The end of the top sleeve (6) away from the limit rings (5) is fixedly connected to a sliding plate (7). The inner wall of the top sleeve (6) is fixedly connected to a spring (8). The outer side of the sliding plate (7) is slidably connected to a positioning ring (9). The inner wall of the positioning ring (9) is provided with multiple limit grooves (10). The inner wall of the positioning ring (9) is fixedly connected to multiple sliders (11). The outer side of the sliders (11) is slidably connected to a rotating column (12). The outer side of the rotating column (12) is provided with multiple sliding grooves (13). The inner wall of the rotating column (12) is slidably connected to a locking assembly with multiple subsequent components for locking.

2. The tapping machine for easy tap replacement according to claim 1, characterized in that, The locking assembly includes two buttons (14), which are slidably connected to the inner wall of the rotating column (12). An arc-shaped locking plate (15) is fixedly connected to the outside of the buttons (14), and a spring (16) is fixedly connected to the outside of the arc-shaped locking plate (15). A roller (17) is slidably connected to the outside of the arc-shaped locking plate (15), and a locking post (18) is rotatably connected to the roller (17). A tap (19) is movably connected to the inner wall of the rotating column (12), and a slot (20) is opened on the outside of the tap (19).

3. The tapping machine for easy tap replacement according to claim 1, characterized in that, The positioning ring (9) is fixedly connected to a rubber pad (21), and a micro motor (22) is fixedly connected to one end of the connecting plate (2) away from the fixing sleeve (3).

4. A tapping machine for easy tap replacement according to claim 3, characterized in that, The drive end of the micro motor (22) is fixedly connected to a rotating column (12), and the outside of the rotating column (12) is in contact with the inner wall of the fixed sleeve (3).

5. A tapping machine for easy tap replacement according to claim 2, characterized in that, The external of the arc-shaped clamping plate (15) is movably connected to the inner wall of the rotating column (12), and the two ends of the clamping column (18) are fixedly connected to the inner wall of the rotating column (12).

6. A tapping machine for easy tap replacement according to claim 2, characterized in that, The end of the second spring (16) away from the arc-shaped plate (15) is fixedly connected to the inner wall of the rotating column (12), and the end of the arc-shaped plate (15) away from the button (14) is movably connected to the inner wall of the slot (20).

7. A tapping machine for easy tap replacement according to claim 1, characterized in that, The end of the spring (8) away from the sliding plate (7) is fixedly connected to the inner wall of the connecting sleeve (4), and the outer side of the sliding plate (7) is slidably connected to the inner wall of the limiting groove (10).

8. A tapping machine for easy tap replacement according to claim 1, characterized in that, The outer side of the top sleeve (6) is slidably connected to the inner wall of the connecting sleeve (4), and the end of the slider (11) away from the positioning ring (9) is slidably connected to the inner wall of the groove (13).

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