Automatic tapping machine for coupling processing

Abstract

The invention relates to the technical field of tapping machines, and in particular to an automatic tapping machine for processing couplings, comprising: a tapping machine body, on which a driving shaft is arranged; a stabilizing plate, which is rotatably mounted on the tapping machine body, and is connected to an energy storage component arranged on the tapping machine body; tapping tools, which are arranged in pairs and rotate on the stabilizing plate in a circular manner with equal distances, and the diameters of a plurality of tapping tools are increased or decreased in sequence; when the stabilizing plate drives the tapping tools to perform circular motion, the energy storage component can perform the actions of storing energy and releasing energy in sequence, and after the energy storage component completes the energy release, one group of the tapping tools can be made coaxial with the driving shaft, so that the tapping tools can be positioned, the wear degree can be reduced, and the stability of the tapping tools when rotating can be ensured, and the tapping tools can be switched by rotating the stabilizing plate, so that the cumbersome operation when replacing the tapping tools is reduced, and the operation difficulty of the device is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of tapping machines, in particular to an automatic tapping machine for coupling processing. Background Art

[0002] The oil pipe coupling is a kind of oilfield drilling tool, mainly used for connecting oil pipes, mainly to solve the problem that the existing couplings are easily fatigued and broken due to stress concentration. In order to ensure that the coupling force is large enough, the coupling is generally locked with a threaded connector.

[0003] When producing threaded connectors, a tapping machine is needed, and the tapping machines on the market can be divided into two types according to their structures: one is the traditional manual tapping machine, and the other is the pneumatic tapping machine. The manual tapping machine is complicated to operate and has low production efficiency, while the pneumatic tapping machine has a complex structure and high production cost. Both are not well suited for factory production line assembly line operations. For this reason, Chinese patent application CN108480800A discloses an automatic tapping machine, including a base, a machine body, a tap fixture, a tap head, a servo motor, a tapping machine spindle, a control box and other structures, which improves work efficiency, extends the service life of the machine, and reduces production costs.

[0004] However, the tapping machine in the above application also has certain disadvantages, mainly in that: when producing threaded connectors of different models, the tap head needs to be replaced, which increases the difficulty of operating the tapping machine and increases the amount of preparation work when producing threaded connectors of different models. Summary of the invention

[0005] The object of the present invention is to provide an automatic tapping machine for coupling processing to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An automatic tapping machine for coupling processing, comprising:

[0008] A tapping machine body, wherein a driving shaft is arranged on the tapping machine body;

[0009] A stabilizing plate is rotatably mounted on the tapping machine body, and the stabilizing plate is connected to an energy storage assembly disposed on the tapping machine body;

[0010] Tapping tools are provided in multiple groups and rotate on the stabilizer plate in a circular manner with equal distances, and the diameters of the multiple tapping tools increase or decrease in sequence;

[0011] When the stabilizer plate drives the tapping tool to perform circular motion, the energy storage component can sequentially perform the actions of storing energy and releasing energy, and after the energy storage component completes releasing energy, one group of the tapping tools can be made coaxial with the driving shaft.

[0012] As a further solution of the present invention: the energy storage assembly comprises a connecting shaft rotatably mounted on the tapping machine body and coaxially fixedly connected to the stabilizer plate, a connecting sleeve shaft is sleeved on the connecting shaft, and a No. 1 cylindrical spring is sleeved on the connecting shaft, one end of the No. 1 cylindrical spring is connected to the tapping machine body, and the other end is connected to the connecting sleeve shaft;

[0013] The connecting sleeve shaft is connected to the tapping machine body through a telescopic rod, and at least one convex shaft is arranged on the inner wall of the connecting sleeve shaft, and the convex shaft is adapted to a limiting groove arranged on the connecting shaft.

[0014] As a further solution of the present invention: a plurality of inner concave parts and inner convex parts are staggeredly arranged on one side of the limiting groove away from the connecting sleeve shaft, and two adjacent inner concave parts and inner convex parts are connected by an inclined surface.

[0015] As a further solution of the present invention: an arc-shaped protrusion is arranged on the top of the tapping tool, an arc-shaped groove is formed on the driving shaft, the arc-shaped protrusion is adapted to the arc-shaped groove, and the circumferential radius of the two is equal to the distance between the tapping tool and the rotation center of the connecting shaft.

[0016] As a further solution of the present invention: it also includes:

[0017] A junction box connected to the tapping machine body, the junction box being connected to the fuel injector;

[0018] An adjusting mechanism connected to the junction box, the adjusting mechanism comprising a first adjusting component and a second adjusting component, the first adjusting component cooperates with the second adjusting component to control the amount of oil entering the fuel injector from the junction box;

[0019] The first adjustment component is connected to the connecting shaft;

[0020] The centrifugal component is connected to the second regulating component and the driving shaft, and the centrifugal component can drive the second regulating component to move according to the rotation speed of the driving shaft.

[0021] As a further solution of the present invention: the first regulating assembly includes a second conducting hole arranged in the junction box and a switching disk rotatably installed in the junction box, the switching disk is equidistantly provided with a plurality of connecting holes with successively changing diameters along its circumferential direction, the connecting holes are adapted to the second conducting hole, and the second conducting hole has the same radius as the connecting hole with the largest diameter;

[0022] The rotating shaft of the switching disk is connected to the connecting shaft via a second belt.

[0023] As a further solution of the present invention: the second adjustment component includes a first conduction hole arranged in the junction box and a blocking plate slidably fitted with the inner wall of the junction box, and a special-shaped groove is formed on the blocking plate, and the special-shaped groove is adapted to the first conduction hole;

[0024] The width of the special-shaped groove gradually increases or decreases along its length direction, and the width of the first conducting hole is the same as the maximum width of the special-shaped groove.

[0025] As a further solution of the present invention: the centrifugal assembly comprises a transmission shaft rotatably mounted on the tapping machine body, the transmission shaft being connected to the driving shaft via a No. 1 belt;

[0026] A rotating rod is rotatably mounted on the transmission shaft, and two sliding grooves are arranged along the length direction of the rotating rod, and a counterweight slider is slidably mounted in the sliding groove;

[0027] The transmission shaft is also sleeved with a follower sleeve, on which a connecting rod is rotatably mounted, and one end of the connecting rod away from the follower sleeve is rotatably connected to the counterweight slider;

[0028] A No. 2 cylindrical spring is also sleeved on the transmission shaft, one end of the No. 2 cylindrical spring is connected to the follower sleeve, and the other end is connected to the rotating rod.

[0029] As a further solution of the present invention: an annular groove is formed on the follower sleeve, a collar is rotatably installed in the annular groove, and the collar is fixedly connected to the sealing plate.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] By setting the stabilizer plate, the tapping tool and the energy storage component, the tapping tool can be positioned under the cooperation of the convex shaft and the inner concave part, so that after the switching is completed, the tapping tool can be automatically coaxial with the driving shaft, and when the driving shaft drives the tapping tool to rotate, the wear between the two is reduced, and the stability of the tapping tool during rotation is guaranteed. The tapping tool is switched by rotating the stabilizer plate, which simplifies the cumbersome operation of replacing the tapping tool and reduces the difficulty of operating the device.

[0032] Through the set adjustment mechanism, on the one hand, the pumping amount of the lubricating oil can be regulated according to the specifications of the tapping tool, so that the two can be automatically matched. On the other hand, the pumping amount of the lubricating oil can be regulated according to the rotational speed of the tapping tool, and the two can also be automatically matched. The combination of these two aspects realizes precise control of the lubricating oil, avoids waste caused by excessive lubricating oil, ensures that the tapping tool can be effectively cooled, and improves the durability of the tapping tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 The present invention is a structural schematic diagram of an embodiment of an automatic tapping machine for coupling processing.

[0034] Figure 2 for Figure 1 A magnified view of the structure at center.

[0035] Figure 3 It is a schematic structural diagram from another angle of an embodiment of an automatic tapping machine for coupling processing.

[0036] Figure 4 The present invention is a schematic diagram of the structure of an energy storage component, a stabilizer plate and a tapping tool in one embodiment of an automatic tapping machine for coupling processing.

[0037] Figure 5 An exploded view of an energy storage component in one embodiment of an automatic tapping machine for coupling processing.

[0038] Figure 6 for Figure 5 A magnified view of the structure at point B.

[0039] Figure 7 An exploded diagram of the connection relationship between a driving shaft and a tapping tool in an embodiment of an automatic tapping machine for coupling processing.

[0040] Figure 8 The present invention is a schematic structural diagram of a junction box and an adjusting mechanism in one embodiment of an automatic tapping machine for coupling processing.

[0041] In the figure: 1. tapping machine body; 2. driving shaft; 201. arc groove; 3. stabilizing plate; 4. tapping tool; 5. arc protrusion; 6. connecting shaft; 601. inner concave part; 602. inner convex part; 603. inclined surface; 7. connecting sleeve shaft; 701. convex shaft; 8. telescopic rod; 9. No. 1 cylindrical spring; 10. No. 1 belt; 11. rotating rod; 1101. slide groove; 12. counterweight slider; 13. connecting rod; 14. follower sleeve; 15. collar; 16. transmission shaft; 17. No. 2 cylindrical spring; 18. sealing plate; 1801. special-shaped groove; 19. junction box; 1901. No. 1 conduction hole; 1902. No. 2 conduction hole; 20. switching plate; 2001. connecting hole; 21. No. 2 belt; 22. fuel injector. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0044] See also Figure 1-Figure 8 In an embodiment of the present invention, an automatic tapping machine for coupling processing includes: a tapping machine body 1, a stabilizing plate 3 and a tapping tool 4, so that the tapping tool 4 can be positioned under the cooperation of the convex shaft 701 and the inner recess 601, so that after the switching is completed, the tapping tool 4 can automatically be coaxial with the driving shaft 2, and when the driving shaft 2 drives the tapping tool 4 to rotate, the wear between the two is reduced, and at the same time, the stability of the tapping tool 4 during rotation is guaranteed, and the tapping tool 4 is switched by rotating the stabilizing plate 3, which simplifies the cumbersome operation of replacing the tapping tool 4 and reduces the difficulty of operating the device.

[0045] The tapping machine body 1 is provided with a driving shaft 2;

[0046] The stabilizer plate 3 is rotatably mounted on the tapping machine body 1, and the stabilizer plate 3 is connected to an energy storage assembly arranged on the tapping machine body 1;

[0047] The energy storage assembly includes a connecting shaft 6 which is rotatably mounted on the tapping machine body 1 and coaxially fixedly connected to the stabilizing plate 3, a connecting sleeve shaft 7 is sleeved on the connecting shaft 6, and a No. 1 cylindrical spring 9 is sleeved on the connecting shaft 6, one end of the No. 1 cylindrical spring 9 is connected to the tapping machine body 1, and the other end is connected to the connecting sleeve shaft 7;

[0048] The connecting sleeve shaft 7 is connected to the tapping machine body 1 through a telescopic rod 8, and at least one convex shaft 701 is arranged on the inner wall of the connecting sleeve shaft 7, and the convex shaft 701 is adapted to the limiting groove arranged on the connecting shaft 6, wherein a plurality of inner recesses 601 and inner protrusions 602 are alternately arranged on the side of the limiting groove away from the connecting sleeve shaft 7, and two adjacent inner recesses 601 and inner protrusions 602 are connected by an inclined surface 603.

[0049] When in use, pulling the stabilizing plate 3 to rotate can drive the connecting shaft 6 to rotate, and the connecting sleeve shaft 7 is connected to the tapping machine body 1 through the telescopic rod 8, so that the connecting sleeve shaft 7 can only move in the vertical direction of the space. Specifically, in the initial state, the convex shaft 701 is in one of the inner recesses 601. At this time, under the action of the elastic force provided by the No. 1 column spring 9, the connecting shaft 6 and the stabilizing plate 3 can be limited, and one of the tapping tools 4 is made coaxial with the active shaft 2, so that when the active shaft 2 rotates, the tapping tool 4 can be driven to rotate stably, thereby performing the tapping action, and when the stabilizing plate 3 is rotated, the stabilizing plate 3 can drive the connecting shaft 6 to rotate stably, thereby performing the tapping action. The shaft 6 rotates synchronously. At this time, as the connecting shaft 6 rotates, the inner recess 601, the inner protrusion 602 and the inclined surface 603 will also rotate accordingly, so that the convex shaft 701 can move along the inclined surface 603, and drive the connecting sleeve shaft 7 to move upward to compress the No. 1 cylindrical spring 9, until the convex shaft 701 moves along the inclined surface 603 to the inner protrusion 602. When the stabilizer plate 3 continues to rotate, the convex shaft 701 will pass the position of the inner protrusion 602, and then the No. 1 cylindrical spring 9 will release the elastic potential energy and drive the connecting sleeve shaft 7 to move downward, so that the convex shaft 701 can cooperate with the other inner recess 601, thereby completing the switching of the tapping tool 4.

[0050] Through the above-mentioned arrangement, the tapping tool 4 can be positioned with the cooperation of the convex shaft 701 and the inner recess 601, so that after the switching is completed, the tapping tool 4 can automatically be coaxial with the active shaft 2, and when the active shaft 2 drives the tapping tool 4 to rotate, the wear between the two is reduced, and at the same time, the stability of the tapping tool 4 during rotation is guaranteed. The tapping tool 4 is switched by rotating the stabilizer plate 3, which simplifies the tedious operation of replacing the tapping tool 4 and reduces the difficulty of operating the device.

[0051] See also Figure 7 The tapping tools 4 are arranged in pairs and rotate equidistantly on the stabilizing plate 3 in a circular pattern, and the diameters of the plurality of tapping tools 4 increase or decrease in sequence;

[0052] The top of the tapping tool 4 is provided with an arc-shaped protrusion 5, and the driving shaft 2 is formed with an arc-shaped groove 201. The arc-shaped protrusion 5 is adapted to the arc-shaped groove 201, and the circumferential radius of the two is equal to the distance between the tapping tool 4 and the rotation center of the connecting shaft 6;

[0053] When the stabilizer plate 3 drives the tapping tools 4 to perform circular motion, the energy storage component can sequentially perform the actions of storing energy and releasing energy, and after the energy storage component completes releasing energy, one group of the tapping tools 4 can be made coaxial with the driving shaft 2.

[0054] When the active shaft 2 rotates and stops, the arrow on the active shaft 2 can always be aligned with one of the positioning points on the stabilizing plate 3, and when switching the tapping tool 4, it is necessary to check whether the arrow on the tapping tool 4 is aligned with the positioning point on the stabilizing plate 3. After all the arrows are aligned with the positioning points, the stabilizing plate 3 is controlled to rotate, which can drive multiple groups of tapping tools 4 to make circular motion, and the arc-shaped protrusion 5 can be inserted into the arc-shaped groove 201 when making circular motion, thereby ensuring that after the tapping tool 4 is completed, the rotation of the active shaft 2 can drive the corresponding tapping tool 4 to rotate, and then the tapping action can be performed.

[0055] Through the above-mentioned arrangement, when the tapping tool 4 is switched, the arc-shaped protrusion 5 can match with the arc-shaped groove 201 adapted thereto, thereby ensuring that after the switching of the tapping tool 4 is completed, the arc-shaped protrusion 5 can be in an interlocking state with the arc-shaped groove 201, so that when the driving shaft 2 rotates, the tapping tool 4 can rotate with it.

[0056] See also Figure 1 , Figure 8 The automatic tapping machine for coupling processing also includes: a junction box 19, an adjustment mechanism and a centrifugal component.

[0057] Connecting the tapping machine body 1, the junction box 19 is connected to the fuel injection nozzle 22;

[0058] The regulating mechanism is connected to the junction box 19, and the regulating mechanism includes a first regulating component and a second regulating component. The first regulating component cooperates with the second regulating component to control the amount of oil entering the fuel injection nozzle 22 from the junction box 19;

[0059] Three independent chambers are formed in the junction box 19;

[0060] The first regulating assembly includes a second conducting hole 1902 arranged in the junction box 19 and a switching disk 20 rotatably mounted in the junction box 19, wherein the switching disk 20 is equidistantly provided with a plurality of communicating holes 2001 with successively changing diameters along its circumferential direction, wherein the communicating holes 2001 are adapted to the second conducting hole 1902, and the second conducting hole 1902 has the same radius as the communicating hole 2001 with the largest diameter;

[0061] The rotating shaft of the switching disk 20 is connected to the connecting shaft 6 via a second belt 21;

[0062] The second regulating assembly includes a first conducting hole 1901 disposed in the junction box 19 and a blocking plate 18 slidingly fitted with the inner wall of the junction box 19, wherein a special-shaped groove 1801 is formed on the blocking plate 18, and the special-shaped groove 1801 is adapted to the first conducting hole 1901;

[0063] The width of the special-shaped groove 1801 along its length direction gradually increases or decreases, and the width of the first conducting hole 1901 is the same as the maximum width of the special-shaped groove 1801 .

[0064] When in use, the external lubricating oil pumping device can pump the lubricating oil into the junction box 19, and enter the oil injection nozzle 22 through the No. 1 conducting hole 1901 and the No. 2 conducting hole 1902 to lubricate and cool the tapping tool 4 during the tapping process.

[0065] During use, when the rotating stabilizer plate 3 is switched to a larger-sized tapping tool 4, the heat generated by the tapping operation will increase accordingly, and the amount of lubricating oil required at this time will also increase accordingly. During the rotating stabilizer plate 3, the connecting shaft 6 can drive the switching plate 20 to rotate through the No. 2 belt 21, and the connecting hole 2001 with a larger diameter on the switching plate 20 can be made to coincide with the No. 2 guide hole 1902. At this time, the amount of lubricating oil entering the oil injector 22 will increase, thereby cooling the heat generated when the larger-sized tapping tool 4 performs the tapping action, thereby realizing a mechanical linkage between the switching of the tapping tool 4 and the pumping amount of the lubricating oil, thereby ensuring that the tapping tool 4 can be fully lubricated and cooled.

[0066] Considering that the rotation speed of the driving shaft 2 may also change, at this time, when the rotation speed of the driving shaft 2 increases, the centrifugal assembly will drive the sealing plate 18 to move upward, and the special-shaped groove 1801 will move upward, so that the area where the No. 1 guide hole 1901 is blocked is reduced, so that when the rotation speed of the driving shaft 2 is faster, the lubricating oil entering the oil nozzle 22 can be further increased to ensure that when the rotation speed of the tapping tool 4 is faster, the lubricating oil can cool down the generated heat in time.

[0067] Through the above-mentioned arrangement, on the one hand, the pumping amount of the lubricating oil can be regulated according to the specifications of the tapping tool 4, so that the two can be automatically matched; on the other hand, the pumping amount of the lubricating oil can be regulated according to the rotational speed of the tapping tool 4, and the two can also be automatically matched. The combination of these two aspects realizes precise control of the lubricating oil, avoids waste caused by excessive lubricating oil, and ensures that the tapping tool 4 can be effectively cooled, thereby improving the durability of the tapping tool 4.

[0068] See also Figure 1-Figure 2The centrifugal assembly is connected to the blocking plate 18 and the driving shaft 2. The centrifugal assembly can drive the blocking plate 18 to move according to the rotation speed of the driving shaft 2. The centrifugal assembly includes a transmission shaft 16 rotatably mounted on the tapping machine body 1. The transmission shaft 16 is connected to the driving shaft 2 through a No. 1 belt 10;

[0069] A rotating rod 11 is rotatably mounted on the transmission shaft 16. The rotating rod 11 is provided with two slide grooves 1101 along its length direction. A counterweight slider 12 is slidably mounted in the slide grooves 1101.

[0070] The transmission shaft 16 is also sleeved with a follower sleeve 14, on which a connecting rod 13 is rotatably mounted, and one end of the connecting rod 13 away from the follower sleeve 14 is rotatably connected to the counterweight slider 12;

[0071] The transmission shaft 16 is also sleeved with a No. 2 cylindrical spring 17, one end of the No. 2 cylindrical spring 17 is connected to the follower sleeve 14, and the other end is connected to the rotating rod 11;

[0072] An annular groove is formed on the follower sleeve 14 , and a collar 15 is rotatably mounted in the annular groove. The collar 15 is fixedly connected to the blocking plate 18 .

[0073] When the speed of the driving shaft 2 increases, the speed of the rotating rod 11 will also increase, causing the counterweight slider 12 set in the slide groove 1101 to generate centrifugal force, and then move along the length direction of the slide groove 1101. During this process, the counterweight slider 12 can pull the follower sleeve 14 downward through the connecting rod 13, compressing the No. 2 columnar spring 17 while causing the blocking plate 18 to move downward, thereby increasing the conduction of the No. 1 conducting hole 1901. That is, the greater the speed of the driving shaft 2, the greater the conduction of the No. 1 conducting hole 1901, thereby ensuring that when the speed of the tapping tool 4 increases, the pumping amount of the lubricating oil can be increased.

[0074] It will be apparent to those skilled in the art that the 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 the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0075] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An automatic tapping machine for coupling processing, It is characterized in that include: A tapping machine body (1), wherein a driving shaft (2) is provided on the tapping machine body (1); A stabilizing plate (3) is rotatably mounted on the tapping machine body (1), and the stabilizing plate (3) is connected to an energy storage component arranged on the tapping machine body (1); Tapping tools (4) are arranged in multiple groups and rotate on the stabilizing plate (3) at equal intervals in a circle, and the diameters of the multiple tapping tools (4) increase or decrease in sequence; When the stabilizing plate (3) drives the tapping tool (4) to perform circular motion, the energy storage component can sequentially perform the actions of storing energy and releasing energy, and after the energy storage component completes releasing energy, one group of the tapping tools (4) can be made coaxial with the driving shaft (2); It also includes: a junction box (19) connected to the tapping machine body (1), the junction box (19) being connected to the oil injection nozzle (22); An adjusting mechanism connected to the junction box (19), the adjusting mechanism comprising a first adjusting component and a second adjusting component, the first adjusting component cooperating with the second adjusting component to control the amount of oil entering the fuel injector (22) from the junction box (19); the first adjusting component connected to the connecting shaft (6); a centrifugal component connected to the second adjusting component and the driving shaft (2), the centrifugal component being able to drive the second adjusting component to operate according to the rotation speed of the driving shaft (2); the first adjusting component comprising a second conducting hole (1902) arranged in the junction box (19) and a switching disk (20) rotatably mounted in the junction box (19), the The switching disk (20) is provided with a plurality of connecting holes (2001) of successively changing diameters at equal intervals along its circumferential direction, the connecting holes (2001) being adapted to the second conducting hole (1902), and the second conducting hole (1902) has the same radius as the connecting hole (2001) with the largest diameter; the rotating shaft of the switching disk (20) is connected to the connecting shaft (6) via a second belt (21); the second adjusting component comprises a first conducting hole (1901) provided in the junction box (19) and a sealing plate (18) slidably fitted with an inner wall of the junction box (19), the sealing plate (18) being formed with a special-shaped groove (1801), the special-shaped groove (1801) The shaped groove (1801) is adapted to the first guide hole (1901); the width of the shaped groove (1801) gradually increases or decreases along its length direction, and the width of the first guide hole (1901) is the same as the maximum width of the shaped groove (1801); the centrifugal assembly comprises a transmission shaft (16) rotatably mounted on the tapping machine body (1), the transmission shaft (16) being connected to the driving shaft (2) via a first belt (10); a rotating rod (11) is rotatably mounted on the transmission shaft (16), the rotating rod (11) being provided with two slide grooves (1101) along its length direction, and a counterweight slide is slidably mounted in the slide groove (1101). block (12); a follower sleeve (14) is also sleeved on the transmission shaft (16), a connecting rod (13) is rotatably mounted on the follower sleeve (14), and one end of the connecting rod (13) away from the follower sleeve (14) is rotatably connected to the counterweight slider (12); a second columnar spring (17) is also sleeved on the transmission shaft (16), one end of the second columnar spring (17) is connected to the follower sleeve (14), and the other end is connected to the rotating rod (11); an annular groove is formed on the follower sleeve (14), a collar (15) is rotatably mounted in the annular groove, and the collar (15) is fixedly connected to the sealing plate (18).

2. An automatic tapping machine for coupling processing according to claim 1, It is characterized in that The energy storage assembly comprises a connecting shaft (6) rotatably mounted on the tapping machine body (1) and coaxially fixedly connected to the stabilizing plate (3); a connecting sleeve shaft (7) is sleeved on the connecting shaft (6); and a first columnar spring (9) is sleeved on the connecting shaft (6); one end of the first columnar spring (9) is connected to the tapping machine body (1), and the other end is connected to the connecting sleeve shaft (7); The connecting sleeve shaft (7) is connected to the tapping machine body (1) via a telescopic rod (8), and at least one convex shaft (701) is provided on the inner wall of the connecting sleeve shaft (7), and the convex shaft (701) is adapted to fit a limiting groove provided on the connecting shaft (6).

3. An automatic tapping machine for coupling processing according to claim 2, It is characterized in that A plurality of inner recesses (601) and inner protrusions (602) are arranged in an alternating manner on one side of the limiting groove away from the connecting sleeve shaft (7), and two adjacent inner recesses (601) and inner protrusions (602) are connected via an inclined surface (603).

4. The automatic tapping machine for coupling processing according to claim 3, It is characterized in that The top of the tapping tool (4) is provided with an arc-shaped protrusion (5), and the driving shaft (2) is formed with an arc-shaped groove (201). The arc-shaped protrusion (5) is adapted to the arc-shaped groove (201), and the circumferential radius of the two is equal to the distance between the tapping tool (4) and the rotation center of the connecting shaft (6).

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