Noise reduction type magnetic base tapping machine based on active load adjustment

Abstract

The invention discloses a noise reduction type magnetic base tapping machine based on active load adjustment, and relates to the technical field of magnetic base tapping machines, the noise reduction type magnetic base tapping machine comprises a magnetic base, a tapping device, a driving part and a main body, the tapping device adopts a load adjusting technology, and the rotating speed of a tapping head can be automatically adjusted according to actual load changes in the tapping process; the production of instantaneous friction force and cutting heat in a cutting area is reduced, the impact load during tapping is reduced, the screw tap is prevented from being broken due to overload, the machining safety and stability are improved, meanwhile, the vibration and noise reduction technology is adopted, vibration generated by a tapping head can be effectively absorbed in the tapping operation process, and therefore the operation noise is reduced, and the service life of the tapping machine is prolonged. And meanwhile, the damping coefficient can be automatically adjusted according to the actual load change of the tapping head, when the load is large, damping is automatically improved, the vibration absorption capacity is enhanced, and when the load is light, low damping is maintained, so that the machining stability is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of magnetic tapping machine technology, specifically a noise-reducing magnetic tapping machine based on active load adjustment. Background Technology

[0002] Magnetic tapping machines typically have an electromagnetic adsorption device at the bottom of the machine body, which can be magnetically attached to the surface of metal workpieces such as steel to fix them, thereby enabling in-situ tapping of large, fixed or difficult-to-move workpieces. This structure greatly improves the processing flexibility and adaptability, allowing tapping operations to be carried out in a variety of complex scenarios, such as steel structure manufacturing, shipbuilding and on-site processing of heavy equipment.

[0003] Existing technology has the following drawbacks: During tapping, when the load increases due to the high hardness of the material and the accumulation of chips, the excessively high rotation speed will lead to increased cutting heat, accelerated wear of the tapping head, and reduced tapping effect; the tapping head will vibrate during tapping, causing wear of the tapping head, affecting the tapping quality, and will also generate noise. Summary of the Invention

[0004] The purpose of this invention is to provide a noise-reducing magnetic tapping machine based on active load adjustment, so as to solve the problems of poor tapping effect under high load and noise generated by vibration during tapping in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a noise-reducing magnetic tapping machine based on active load adjustment includes a magnetic base, a main body mounted on the magnetic base, a tapping device mounted on the main body, a driving component mounted on the tapping device, and the magnetic base and the driving component connected to a control system. The tapping device includes a housing, a detection device, an adjustment device, and a transmission device. The housing is mounted on the main body, and the detection device, adjustment device, and transmission device are located inside the housing.

[0006] The testing device includes an outer shaft mounted on a housing. A first bevel gear is mounted on the outer shaft, and a trigger mechanism is installed inside the outer shaft. A linkage mechanism is mounted on the trigger mechanism. The outer shaft drives the trigger mechanism and the first bevel gear to rotate, and the trigger mechanism drives the tapping head to rotate.

[0007] The triggering mechanism includes a torsion bar, which is installed inside the outer shaft. One end of the torsion bar is mounted on the outer shaft, and the other end is fitted with a bushing. A bearing is installed between the bushing and the outer shaft. Cams are alternately mounted on the outer side of the bushing, and an output shaft is installed at one end of the bushing. The outer shaft drives the torsion bar to rotate, which in turn drives the bushing to rotate, which in turn drives the cams and the tapping head to rotate.

[0008] The linkage mechanism includes a guide rod, a sliding groove on the outer shaft, and the guide rod sliding within the sliding groove. An arc-shaped plate is mounted on one end of the guide rod, and a limit plate is mounted on the guide rod. A first elastic element is sleeved on the outer side of the guide rod, with one end mounted on the outer shaft and the other end mounted on the limit plate. One end of the guide rod rests against a cam. When the load increases, the resistance torque of the tapping head increases, causing one end of the torsion bar to twist. This torsion bar drives the bushing to rotate, resulting in relative rotation between the bushing and the outer shaft. The cam on the bushing causes the guide rod to slide within the sliding groove, moving the guide rod away from the torsion bar. The guide rod then drives the arc-shaped plate to move away from the torsion bar.

[0009] The adjusting device includes a base mounted on the bottom of the housing. A rotating rod is rotatably mounted on the base, with a lever at one end and a second elastic element at the other end. A bracket is mounted on one side of the lever. An adjusting column is slidably mounted on the base and installed on a transmission device. A groove is provided on the outer side of the adjusting column, with one end of the lever located within the groove. A first rack is mounted on one end of the adjusting column, and a damping mechanism is mounted on one side of the first rack. An unfolded arc-shaped plate contacts one end of the lever, causing the arc-shaped plate to rotate the lever around the rotating rod. The other end of the lever causes the adjusting column to slide on the bracket, moving it away from the outer axis. The adjusting column then causes the first rack and the second sliding disc to slide away from the outer axis.

[0010] The damping mechanism includes a first oil chamber, a throttle valve mounted on one side of the first oil chamber, the throttle valve being mounted on the outer casing, and a second oil chamber mounted on one side of the throttle valve. A piston rod is slidably mounted inside the first oil chamber, and a connecting rod is installed between the piston rod and the outer shaft. A first gear is mounted on the valve stem of the throttle valve, and the first gear meshes with a first rack. Both the first and second oil chambers are filled with damping oil. When the tapping head vibrates, it drives the output shaft to vibrate, which in turn drives the bushing to vibrate. The bushing then drives the outer shaft to vibrate. The outer shaft, through the connecting rod, drives the piston rod to slide back and forth within the first oil chamber. The piston rod compresses the damping oil, causing the damping oil to absorb and dissipate the vibration energy transmitted from the tapping head, thus suppressing noise. When the load increases, the tapping head vibration intensifies. The first rack drives the first gear to rotate, which in turn drives the valve stem of the throttle valve to rotate, reducing the opening of the throttle valve. This increases the resistance of the damping oil flowing through the throttle valve, thereby generating a greater damping force to absorb and dissipate the vibration energy transmitted from the tapping head.

[0011] The transmission device includes a first rotating shaft and a second rotating shaft, which are rotatably mounted on the housing. A first fixed disc and a second bevel gear are mounted on the first rotating shaft. A first sliding disc is slidably mounted on the first rotating shaft. A third bevel gear is mounted on one end of the driving component. The second and third bevel gears mesh. A second fixed disc and a fourth bevel gear are mounted on the second rotating shaft. A second sliding disc is slidably mounted on the second rotating shaft. The fourth bevel gear meshes with the first bevel gear. A connecting rod is installed between the first and second sliding discs. One end of the first sliding disc, the first fixed disc, the second sliding disc, and the second fixed disc is a conical surface. A steel belt is installed on the inner side of the first and second sliding discs. The second sliding disc is mounted on an adjusting column. When the load increases, the second sliding disc slides away from the outer shaft on the second rotating shaft, reducing the distance between the second sliding disc and the second fixed disc. This causes the steel belt to move along the conical surfaces of the second sliding disc and the second fixed disc, increasing the diameter of the steel belt on these conical surfaces. Simultaneously, the second sliding disc drives the connecting rod to slide away from the outer shaft, and the connecting rod drives the first sliding disc to slide away from the outer shaft. This increases the distance between the first sliding disc and the first fixed disc, causing the steel belt to move along the conical surfaces of the first sliding disc and the first fixed disc, reducing the diameter of the steel belt on these conical surfaces. The transmission ratio between the first rotating shaft and the second rotating shaft increases, and the rotational speed of the second rotating shaft decreases. The second rotating shaft drives the fourth bevel gear to rotate, the fourth bevel gear drives the first bevel gear to rotate, and the first bevel gear drives the outer shaft to rotate.

[0012] A tapping head is mounted on one side of the housing, and a lubrication tube is installed on the tapping head. The tapping head is mounted on the output shaft. A lubricant tank is mounted on one side of the main body. The lubrication tube and the lubricant tank are connected by a pipe. The transmission device is located above the adjustment device. During tapping, the lubricant tank is controlled to flow lubricant into the lubrication tube, and the lubricant lubricates the tapping head.

[0013] The driving component includes a motor, the first elastic component includes a spring, and the second elastic component includes a torsion spring.

[0014] The main body includes a base mounted on a magnetic base. A sliding plate is slidably mounted on one side of the base, and a housing is mounted on the sliding plate. A second rack is mounted on one side of the sliding plate, and a handle is rotatably mounted on one side of the base. A second gear is mounted on one side of the handle, and the second gear meshes with the second rack. During tapping, the handle is manually rotated, which drives the second gear to rotate. The second gear drives the second rack to move closer to the magnetic base, which in turn drives the sliding plate to move closer to the magnetic base. The sliding plate then moves the tapping device closer to the magnetic base, thus tapping the workpiece.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention employs load adjustment technology, which can automatically adjust the tapping head speed according to actual load changes during the tapping process. When the load increases, the tapping head speed is automatically reduced, thereby effectively reducing the instantaneous friction and cutting heat generated in the cutting area, while reducing the impact load during tapping, preventing the tap from breaking due to overload, and improving the safety and stability of the machining process. 2. This invention employs vibration reduction and noise reduction technology, which can effectively absorb the vibration generated by the tapping head during the tapping operation, thereby reducing operating noise. At the same time, it can automatically adjust the damping coefficient according to the actual load changes of the tapping head. When the load is large, it automatically increases the damping to enhance the vibration absorption capacity, and when the load is light, it maintains a low damping to ensure the stability of the processing. Attached Figure Description

[0016] Figure 1 This is a perspective view of the magnetic tapping machine of the present invention; Figure 2 This is a schematic diagram of the internal structure of the tapping device of the present invention; Figure 3 This is a perspective view of the detection device of the present invention; Figure 4 This is a cross-sectional view of the triggering mechanism of the present invention; Figure 5 This is a perspective view of the linkage mechanism of the present invention; Figure 6 This is a perspective view of the adjustment mechanism of the present invention; Figure 7 This is a perspective view of the damping mechanism of the present invention; Figure 8 This is a perspective view of the transmission device of the present invention; Figure 9 This is a perspective view of the main body of the present invention.

[0017] In the diagram: 1. Magnetic base; 2. Tapping device; 21. Housing; 22. Detection device; 221. Outer shaft; 222. Triggering mechanism; 2221. Torque bar; 2222. Bushing; 2223. Cam; 223. Linkage mechanism; 2231. Guide rod; 2232. Arc plate; 224. First bevel gear; 23. Adjusting device; 231. Second elastic element; 232. Lever; 233. Adjusting column; 234. First rack; 235. Resistance. 2351, First oil chamber; 2352, Throttle valve; 2353, Second oil chamber; 2354, First gear; 24, Transmission device; 241, First sliding plate; 242, First fixed plate; 243, Second bevel gear; 244, Second fixed plate; 245, Second sliding plate; 246, Fourth bevel gear; 247, Connecting rod; 25, Tapping head; 3, Driving component; 4, Main body; 41, Base; 42, Slide plate; 43, Handle. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Example: Figures 1-9 As shown, the present invention provides a technical solution: a noise-reducing magnetic tapping machine based on active load adjustment includes a magnetic base 1, a main body 4 mounted on the magnetic base 1, a tapping device 2 mounted on the main body 4, a driving component 3 mounted on the tapping device 2, and the magnetic base 1 and the driving component 3 connected to a control system. The tapping device 2 includes a housing 21, a detection device 22, an adjustment device 23, and a transmission device 24. The housing 21 is mounted on the main body 4. The detection device 22, the adjustment device 23, and the transmission device 24 are located inside the housing 21. The driving component 3 includes a motor. The first elastic component includes a spring, and the second elastic component 231 includes a torsion spring. When the load is restored, the arc plate 2232 retracts, the torsion spring drives the rotating rod to rotate to the initial position, and the rotating rod drives the lever 232 to rotate to the initial position.

[0020] A tapping head 25 is mounted on one side of the housing 21, and a lubrication tube is installed on the tapping head 25. The tapping head 25 is mounted on the output shaft. A lubricant tank is mounted on one side of the main body 4. The lubrication tube and the lubricant tank are connected by a pipe. The transmission device 24 is located above the adjustment device 23. During tapping, the lubricant tank is controlled to flow lubricant into the lubrication tube, and the lubricant lubricates the tapping head 25.

[0021] The detection device 22 includes an outer shaft 221, which is mounted on the housing 21. A first bevel gear 224 is mounted on the outer shaft 221. A trigger mechanism 222 is installed inside the outer shaft 221, and a linkage mechanism 223 is mounted on the trigger mechanism 222. The outer shaft 221 drives the trigger mechanism 222 and the first bevel gear 224 to rotate, and the trigger mechanism 222 drives the tapping head 25 to rotate.

[0022] The triggering mechanism 222 includes a torsion bar 2221, which is installed inside the outer shaft 221. One end of the torsion bar 2221 is mounted on the outer shaft 221, and the other end of the torsion bar 2221 is fitted with a bushing 2222. A bearing is installed between the bushing 2222 and the outer shaft 221. Cams 2223 are alternately mounted on the outer side of the bushing 2222, and an output shaft is installed at one end of the bushing 2222. The outer shaft 221 drives the torsion bar 2221 to rotate, which in turn drives the bushing 2222 to rotate. The bushing 2222 then drives the cams 2223 and the tapping head 25 to rotate.

[0023] The linkage mechanism 223 includes a guide rod 2231, a sliding groove is provided on the outer shaft 221, the guide rod 2231 slides in the sliding groove, an arc plate 2232 is installed at one end of the guide rod 2231, a limit plate is installed on the guide rod 2231, a first elastic member is sleeved on the outer side of the guide rod 2231, one end of the first elastic member is installed on the outer shaft 221, the other end of the first elastic member is installed on the limit plate, and one end of the guide rod 2231 abuts against the cam 2223. When the load increases, the resistance torque of the tapping head 25 increases, one end of the torsion bar 2221 is twisted, and one end of the torsion bar 2221 drives the bushing 2222 to rotate. The bushing 2222 and the outer shaft 221 rotate relative to each other. The cam 2223 on the bushing 2222 drives the guide rod 2231 to slide in the sliding groove. The guide rod 2231 moves away from the torsion bar 2221, and the guide rod 2231 drives the arc plate 2232 to move away from the torsion bar 2221.

[0024] The adjusting device 23 includes a base mounted on the bottom of the housing 21. A rotating rod is rotatably mounted on the base, with a lever 232 mounted at one end and a second elastic element 231 mounted at the other end. A bracket is mounted on one side of the lever 232. An adjusting column 233 is slidably mounted on the base and mounted on the transmission device 24. A groove is provided on the outer side of the adjusting column 233, with one end of the lever 232 located in the groove. A first rack 234 is mounted on one end of the adjusting column 233, and a damping mechanism 235 is mounted on one side of the first rack 234. The unfolded arc-shaped plate 2232 contacts one end of the lever 232, causing the lever 232 to rotate around the rotating rod. The other end of the lever 232 causes the adjusting column 233 to slide on the bracket, sliding away from the outer shaft 221. The adjusting column 233 also causes the first rack 234 and the second sliding disc 245 to slide away from the outer shaft 221.

[0025] The damping mechanism 235 includes a first oil chamber 2351, a throttle valve 2352 installed on one side of the first oil chamber 2351, the throttle valve 2352 is mounted on the outer casing 21, a second oil chamber 2353 is installed on one side of the throttle valve 2352, a piston rod is slidably installed inside the first oil chamber 2351, a connecting rod is installed between the piston rod and the outer shaft 221, a first gear 2354 is installed on the valve stem of the throttle valve 2352, and the first gear 2354 meshes with the first rack 234.

[0026] When the tapping head 25 vibrates, it drives the output shaft to vibrate, which in turn drives the bushing 2222 to vibrate. The bushing 2222 then drives the outer shaft 221 to vibrate. The outer shaft 221, through a connecting rod, drives the piston rod to slide back and forth in the first oil chamber 2351. The piston rod squeezes the damping oil, causing the damping oil to absorb and dissipate the vibration energy transmitted from the tapping head 25, thus suppressing noise. When the load increases, the vibration of the tapping head 25 intensifies. The first rack 234 drives the first gear 2354 to rotate, which in turn drives the valve stem of the throttle valve 2352 to rotate, reducing the opening of the throttle valve 2352. This increases the resistance of the damping oil flowing through the throttle valve 2352, thereby generating a greater damping force to absorb and dissipate the vibration energy transmitted from the tapping head 25.

[0027] The transmission device 24 includes a first rotating shaft and a second rotating shaft, which are rotatably mounted on the housing 21. A first fixed disk 242 and a second bevel gear 243 are mounted on the first rotating shaft. A first sliding disk 241 is slidably mounted on the first rotating shaft. A third bevel gear is mounted on one end of the driving component 3. The second bevel gear 243 meshes with the third bevel gear. A second fixed disk 244 and a fourth bevel gear 246 are mounted on the second rotating shaft. A second sliding disk 245 is slidably mounted on the second rotating shaft. The fourth bevel gear 246 meshes with the first bevel gear 244. A connecting rod 247 is installed between the first sliding disk 241 and the second sliding disk 245. One end of the first sliding disk 241, the first fixed disk 242, the second sliding disk 245, and the second fixed disk 244 is a conical surface. A steel belt is installed on the inner side of the first sliding disk 241 and the second sliding disk 245. The second sliding disk 245 is mounted on the adjusting column 233.

[0028] When the load increases, the second sliding disk 245 slides away from the outer shaft 221 on the second rotating shaft, reducing the distance between the second sliding disk 245 and the second fixed disk 244. This causes the steel belt to move along the conical surface of the second sliding disk 245 and the second fixed disk 244, increasing the diameter of the steel belt on this conical surface. Simultaneously, the second sliding disk 245 drives the connecting rod 247 to slide away from the outer shaft 221, and the connecting rod 247 drives the first sliding disk 241 to slide away from the outer shaft 221. This increases the distance between the first sliding disk 241 and the first fixed disk 242, causing the steel belt to move along the conical surface of the first sliding disk 241 and the first fixed disk 242, reducing the diameter of the steel belt on this conical surface. The transmission ratio between the first rotating shaft and the second rotating shaft increases, and the rotational speed of the second rotating shaft decreases. The second rotating shaft drives the fourth bevel gear 246 to rotate, the fourth bevel gear 246 drives the first bevel gear 224 to rotate, and the first bevel gear 224 drives the outer shaft 221 to rotate.

[0029] The main body 4 includes a base 41, which is mounted on a magnetic base 1. A sliding plate 42 is slidably mounted on one side of the base 41, and a housing 21 is mounted on the sliding plate 42. A second rack is mounted on one side of the sliding plate 42, and a handle 43 is rotatably mounted on one side of the base 41. A second gear is mounted on one side of the handle 43, and the second gear meshes with the second rack. During tapping, the handle 43 is manually rotated, which drives the second gear to rotate. The second gear drives the second rack to move closer to the magnetic base 1, which in turn drives the sliding plate 42 to move closer to the magnetic base 1. The sliding plate 42 then drives the tapping device 2 to move closer to the magnetic base 1, thus tapping the workpiece.

[0030] Working principle of the invention: When tapping, the control motor starts, driving the third bevel gear to rotate. The third bevel gear drives the second bevel gear 243 to rotate, which in turn drives the first rotating shaft to rotate. The first rotating shaft drives the first fixed plate 242 and the first sliding plate 241 to rotate, which in turn drives the steel belt to rotate. The steel belt drives the second fixed plate 244 and the second sliding plate 245 to rotate, which in turn drives the second rotating shaft to rotate. The second rotating shaft drives the fourth bevel gear 246 to rotate, which in turn drives the first bevel gear 224 to rotate. The first bevel gear 224 drives the outer shaft 221 to rotate, which in turn drives the torsion bar 2221 to rotate. The torsion bar 2221 drives the bushing 2222 to rotate, which in turn drives the output shaft to rotate, which in turn drives the tapping head 25 to rotate.

[0031] When the tapping head 25 rotates, the handle 43 is manually rotated. The rotation of the handle 43 drives the second gear to rotate, which in turn drives the second rack to move closer to the magnetic base 1. The second rack drives the slide plate 42 to move closer to the magnetic base 1, and the slide plate 42 drives the tapping device 2 to move closer to the magnetic base 1 to tap the workpiece. At the same time, the lubricating fluid tank is controlled to flow lubricating fluid into the lubrication pipe, which lubricates the tapping head 25. When the tapping head 25 vibrates, it drives the output shaft to vibrate, which in turn drives the bushing 2222 to vibrate. The bushing 2222 drives the outer shaft 221 to vibrate, and the outer shaft 221 drives the piston rod to slide back and forth in the first oil chamber 2351 through the connecting rod. The piston rod squeezes the damping oil, which absorbs and dissipates the vibration energy transmitted from the tapping head 25, thus suppressing noise.

[0032] When the load on the tapping head 25 increases, the resistance torque of the tapping head 25 increases, and one end of the torsion bar 2221 is twisted. One end of the torsion bar 2221 drives the bushing 2222 to rotate, and the bushing 2222 and the outer shaft 221 rotate relative to each other. The cam 2223 on the bushing 2222 drives the guide rod 2231 to slide in the sliding groove. The guide rod 2231 moves away from the torsion bar 2221. The guide rod 2231 drives the arc plate 2232 to move away from the torsion bar 2221. At this time, the arc plate 2232 unfolds and contacts one end of the lever 232. The arc plate 2232 drives the lever 232 to rotate around the rotating rod. The other end of the lever 232 drives the adjusting column 233 to slide on the bracket. The adjusting column 233 slides away from the outer shaft 221. The adjusting column 233 drives the first rack 234 and the second sliding disk 245 to slide away from the outer shaft 221.

[0033] When the second sliding disk 245 slides, it slides away from the outer shaft 221 on the second rotating shaft. The distance between the second sliding disk 245 and the second fixed disk 244 decreases, causing the steel strip to move along the conical surface of the second sliding disk 245 and the second fixed disk 244, increasing the diameter of the steel strip on this conical surface. At the same time, the second sliding disk 245 drives the connecting rod 247 to slide away from the outer shaft 221, and the connecting rod 247 drives the first sliding disk 241 to slide away from the outer shaft 221. The distance between the first sliding disk 241 and the first fixed disk 242 increases, causing the steel strip to move along the conical surface of the first sliding disk 241 and the first fixed disk 242, decreasing the diameter of the steel strip on this conical surface. The transmission ratio of the first rotating shaft and the second rotating shaft increases, and the rotational speed of the second rotating shaft decreases, which reduces the rotational speed of the tapping head 25, reduces the instantaneous friction and cutting heat generated in the cutting area, and reduces the impact load during tapping, preventing the tap from breaking due to overload.

[0034] When the load increases, the vibration of the tapping head 25 will also intensify. The first rack 234 drives the first gear 2354 to rotate, and the first gear 2354 drives the valve stem of the throttle valve 2352 to rotate, which reduces the opening of the throttle valve 2352. The resistance of the damping oil flowing through the throttle valve 2352 increases, which can generate a greater damping force to absorb and dissipate the vibration energy transmitted from the tapping head 25, thereby effectively reducing noise.

[0035] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A noise-reducing magnetic tapping machine based on active load adjustment, characterized in that: Includes a magnetic base (1), on which a main body (4) is mounted, on which a tapping device (2) is mounted, on which a driving component (3) is mounted, and the magnetic base (1) and the driving component (3) are connected to a control system; The tapping device (2) includes a housing (21), a detection device (22), an adjustment device (23), and a transmission device (24). The housing (21) is mounted on the main body (4), and the detection device (22), the adjustment device (23), and the transmission device (24) are located inside the housing (21).

2. The noise-reducing magnetic tapping machine based on active load adjustment according to claim 1, characterized in that: The detection device (22) includes an outer shaft (221), which is mounted on the outer casing (21). A first bevel gear (224) is mounted on the outer shaft (221). A trigger mechanism (222) is installed inside the outer shaft (221), and a linkage mechanism (223) is mounted on the trigger mechanism (222).

3. The noise-reducing magnetic tapping machine based on active load adjustment according to claim 2, characterized in that: The triggering mechanism (222) includes a torsion bar (2221), which is installed inside the outer shaft (221). One end of the torsion bar (2221) is installed on the outer shaft (221), and the other end of the torsion bar (2221) is fitted with a bushing (2222). A bearing is installed between the bushing (2222) and the outer shaft (221). Cams (2223) are alternately installed on the outer side of the bushing (2222), and an output shaft is installed at one end of the bushing (2222).

4. A noise-reducing magnetic tapping machine based on active load adjustment according to claim 3, characterized in that: The linkage mechanism (223) includes a guide rod (2231), a sliding groove is provided on the outer shaft (221), the guide rod (2231) slides in the sliding groove, an arc plate (2232) is installed at one end of the guide rod (2231), a limit plate is installed on the guide rod (2231), a first elastic element is sleeved on the outer side of the guide rod (2231), one end of the first elastic element is installed on the outer shaft (221), the other end of the first elastic element is installed on the limit plate, and one end of the guide rod (2231) abuts against the cam (2223).

5. A noise-reducing magnetic tapping machine based on active load adjustment according to claim 4, characterized in that: The adjusting device (23) includes a base, which is installed at the bottom of the outer shell (21). A rotating rod is rotatably mounted on the base. A lever (232) is installed at one end of the rotating rod, and a second elastic element (231) is installed at the other end of the rotating rod. A bracket is installed on one side of the lever (232). An adjusting column (233) is slidably mounted on the base. The adjusting column (233) is mounted on the transmission device (24). A groove is provided on the outer side of the adjusting column (233). One end of the lever (232) is located in the groove. A first rack (234) is installed at one end of the adjusting column (233), and a damping mechanism (235) is installed on one side of the first rack (234).

6. A noise-reducing magnetic tapping machine based on active load adjustment according to claim 5, characterized in that: The damping mechanism (235) includes a first oil chamber (2351), a throttle valve (2352) is installed on one side of the first oil chamber (2351), the throttle valve (2352) is installed on the outer casing (21), a second oil chamber (2353) is installed on one side of the throttle valve (2352), a piston rod is slidably installed inside the first oil chamber (2351), a connecting rod is installed between the piston rod and the outer shaft (221), a first gear (2354) is installed on the valve stem of the throttle valve (2352), and the first gear (2354) meshes with the first rack (234).

7. A noise-reducing magnetic tapping machine based on active load adjustment according to claim 6, characterized in that: The transmission device (24) includes a first rotating shaft and a second rotating shaft. The first and second rotating shafts are rotatably mounted on the housing (21). A first fixed disk (242) and a second bevel gear (243) are mounted on the first rotating shaft. A first sliding disk (241) is slidably mounted on the first rotating shaft. A third bevel gear is mounted on one end of the driving component (3). The second bevel gear (243) meshes with the third bevel gear. A second fixed disk (244) and a fourth bevel gear (246) are mounted on the second rotating shaft. A sliding disk (241) is slidably mounted on the second rotating shaft. The first sliding plate (245) is equipped with a second sliding plate (245). The fourth bevel gear (246) meshes with the first bevel gear (224). A connecting rod (247) is installed between the first sliding plate (241) and the second sliding plate (245). One end of the first sliding plate (241), the first fixed plate (242), the second sliding plate (245) and the second fixed plate (244) are conical. A steel strip is installed on the inner side of the first sliding plate (241) and the second sliding plate (245). The second sliding plate (245) is installed on the adjusting column (233).

8. A noise-reducing magnetic tapping machine based on active load adjustment according to claim 1, characterized in that: A tapping head (25) is installed on one side of the outer casing (21). The tapping head (25) is mounted on the output shaft. A lubrication pipe is installed on the tapping head (25). A lubricating fluid tank is installed on one side of the main body (4). The lubrication pipe and the lubricating fluid tank are connected by a pipe. The transmission device (24) is located above the adjustment device (23).

9. A noise-reducing magnetic tapping machine based on active load adjustment according to claim 5, characterized in that: The driving component (3) includes a motor, the first elastic component includes a spring, and the second elastic component (231) includes a torsion spring.

10. A noise-reducing magnetic tapping machine based on active load adjustment according to claim 1, characterized in that: The main body (4) includes a base (41) which is mounted on a magnetic base (1). A sliding plate (42) is slidably mounted on one side of the base (41). The outer shell (21) is mounted on the sliding plate (42). A second rack is mounted on one side of the sliding plate (42). A handle (43) is rotatably mounted on one side of the base (41). A second gear is mounted on one side of the handle (43). The second gear and the second rack mesh.

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