Connecting structure of extension shaft and input shaft

Abstract

The invention discloses a connecting structure of an extension shaft and an input shaft, and relates to the technical field of shaft connection, the connecting structure comprises a workbench, and further comprises a friction welding mechanism mounted at the top of the workbench; the inner hole flash processing mechanism and the flash anti-sticking mechanism are installed, the contact connection area of the flash and the welding seam is reduced, and therefore the influence of the flash on the non-friction position is reduced, the connection thickness of the flash and the shaft wall is reduced, the flash processing efficiency is improved, the flash on the inner wall of the shaft is processed after welding is finished, the flatness of the shaft wall is guaranteed, and the welding quality is improved. The situation that the hollow input shaft and the hollow extension shaft are unbalanced in the using process due to non-uniformity of flash is avoided, the inner walls of the hollow input shaft and the hollow extension shaft are supported through a collapse prevention mechanism and a reinforced anti-distortion mechanism during rotary friction welding, the collapse possibility is reduced, the inner walls of the shafts are reinforced, and the service life of the hollow input shaft and the hollow extension shaft is prolonged. The anti-distortion strength of the shaft wall is improved, and the condition that the inner wall of the shaft is distorted due to strong friction is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of shaft connection, and in particular to a connection structure of an extension shaft and an input shaft. Background Art

[0002] The input shaft and the extension shaft are connected by friction welding. The principle of friction welding is to apply pressure to the welding position of the two shafts and drive one of the shafts to rotate rapidly during the pressure application process to cause friction between the two shafts. The rapid friction will cause the contact position of the hollow input shaft and the hollow extension shaft to melt and weld together. In the prior art, when two hollow shafts are welded, the two hollow shafts will have strong friction, and the shaft wall will collapse and twist due to pressure and torsional force due to the hollowness and thus affect the straightness and quality of the shaft connection. Therefore, it is necessary to improve the connection structure in view of the welding problem of the hollow shaft. Summary of the invention

[0003] The present invention provides a connection structure between an extension shaft and an input shaft to solve the above-mentioned deficiencies in the prior art.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: A connecting structure of an extension shaft and an input shaft, comprising a workbench, and further comprising: A driving mechanism connected to the friction welding mechanism includes a fixing plate 2 fixed on the top of the fixing plate 1; A collapse prevention mechanism, which is connected to the friction welding mechanism, includes two support cylinders; The collapse prevention mechanism also includes a fixing plate four fixed on the top of the fixing plate two, the fixing plate four is internally connected to a circular plate for rotation, the circular plate is internally connected to a double-section reciprocating threaded rod and fixed to a guide rod two for rotation, a bevel gear two is externally fixed to one end of the double-section reciprocating threaded rod, a bevel gear one is meshed with one side of the bevel gear two, a rotating shaft is fixed inside the bevel gear one, the rotating shaft is rotationally connected to the circular plate, a one-way gear four is fixed to the end of the rotating shaft away from the bevel gear one, a rack is meshed with the top of the one-way gear four, and the rack is fixedly connected to the shell of the clamping rotating structure; The collapse prevention mechanism also includes a movable plate respectively threadedly sleeved on the outside of the two reciprocating threads of the double-section reciprocating threaded rod, the movable plate is sleeved on the outside of the second guide rod, an electromagnetic component is fixed to the annular wall of the movable plate, and the two electromagnetic components are respectively connected to the two support tubes by magnetic attraction; An inner hole flash processing mechanism, which is connected to the collapse prevention mechanism, comprises two cutting rings, and the two cutting rings are provided with flash contact surfaces on opposite sides; The inner hole flash processing mechanism also includes a sleeve fixed on the side of the circular plate away from the clamping rotating structure, and a one-way gear 1 is installed on the outer wall of the end of the sleeve away from the circular plate, and the one-way gear 1 is meshed with the gear 1; A mounting frame is fixed on the top of the second fixing plate, an inner tooth ring is fixed on the inner wall of the mounting frame, the inner teeth of the inner tooth ring are meshed with a one-way gear 2, and the one-way gear 2 is fixed to one end of the double-section reciprocating threaded rod; The two cutting rings are respectively fixed on the adjacent ends of the two supporting tubes.

[0005] Further, it also includes a friction welding mechanism, which is installed on the top of the workbench; The friction welding mechanism includes a fixed plate 1, a motor 1 is fixed to one side of the fixed plate 1, a screw is fixed to the output end of the motor 1, the external thread sleeve of the screw is provided with a clamping and rotating structure, two guide rods 1 are fixed to one side of the fixed plate 1, the two guide rods are set inside the clamping and rotating structure, and a clamping structure is fixed to the top of the workbench.

[0006] Furthermore, a fixing plate three is fixed to the top of the fixing plate two, a motor two is fixed to one side of the fixing plate three, and a gear one is fixed to the output end of the motor two.

[0007] Furthermore, it also includes a flash anti-sticking mechanism, which is connected to the collapse prevention mechanism; The flash anti-sticking mechanism includes a pipe rotatably connected to the inside of a circular plate, the pipe is sleeved inside a sleeve, a rotary sealing connector is installed at one end of the pipe, the rotary sealing connector is externally connected to a feeder, and a plurality of nozzles are externally installed at the other end of the pipe, the pipe is sleeved inside a movable plate close to the circular plate, a one-way gear three is installed on the outer wall of one end of the pipe, and the one-way gear three is meshed with gear one.

[0008] Further, it also includes a reinforcement anti-twisting mechanism, which is connected to the collapse prevention mechanism and includes a plurality of reinforcement plates; The strengthening anti-twisting mechanism also includes a plurality of rod holes opened at one end of the two support tubes away from each other, the rod holes are sleeved with a limit rod inside, the limit rods are sleeved with a spring outside, and one end of the spring is fixedly connected to the inner wall of the rod hole; A mounting ring is fixed to one end of the plurality of limit rods, the other end of the spring is fixedly connected to the mounting ring, a mounting tube is fixed to one side of the mounting ring, a plurality of extrusion ports are opened on the mounting tube, and the reinforcing plate is sleeved inside the extrusion ports; A plurality of fixing frames are fixed on the inner wall of the installation cylinder, an electric push rod is fixed on the fixing frame, and an output end of the electric push rod is fixedly connected to the reinforcing plate.

[0009] Furthermore, a controller is fixed on one side of the workbench, and the controller is electrically connected to the motor 1, the motor 2, the feeder, the electric push rod, the electromagnetic assembly, the clamping rotating structure and the clamping structure respectively.

[0010] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention performs slope treatment on the welding positions of the input shaft and the extension shaft, and disperses the impact pressure through the contact between the upper slope and the lower slope to avoid the collapse of the hollow shaft; 2. The present invention supports the inner walls of the hollow input shaft and the hollow extension shaft during rotational friction welding through a collapse prevention mechanism and a reinforced anti-twisting mechanism, thereby reducing the possibility of collapse, and reinforcing the inner wall of the shaft to improve the anti-twisting strength of the shaft wall, thereby avoiding the occurrence of distortion of the inner wall of the shaft due to strong friction; 3. The present invention reduces the contact and connection area between the flash and the weld by installing an inner hole flash processing mechanism and a flash anti-sticking mechanism, thereby reducing the influence of the flash on the non-friction position and reducing the thickness of the connection between the flash and the shaft wall, thereby improving the efficiency of flash processing. After welding, the flash on the inner wall of the shaft is processed to ensure the flatness of the shaft wall and avoid the unevenness of the flash that causes the hollow input shaft and the hollow extension shaft to be heavy during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic structural diagram from a first perspective of a connection structure between an extension shaft and an input shaft proposed by the present invention.

[0012] Figure 2 This is a schematic structural diagram from a second perspective of a connection structure between an extension shaft and an input shaft proposed by the present invention.

[0013] Figure 3 This is a structural schematic diagram of an inner hole flash processing mechanism of a connection structure between an extension shaft and an input shaft proposed by the present invention.

[0014] Figure 4 This is a schematic structural diagram of a collapse prevention mechanism for a connection structure between an extension shaft and an input shaft proposed by the present invention.

[0015] Figure 5 This is a schematic diagram of the cross-sectional structure of an extension shaft and an input shaft proposed by the present invention.

[0016] Figure 6 This is a schematic diagram of the structure of a reinforcement anti-twisting mechanism for the connection structure between an extension shaft and an input shaft proposed by the present invention.

[0017] Figure 7 for Figure 5 Enlarged structural diagram at point A.

[0018] In the figure: 1. Workbench; 2. Friction welding mechanism; 21. Fixed plate 1; 22. Motor 1; 23. Screw; 24. Guide rod 1; 25. Clamping and rotating structure; 26. Clamping structure; 3. Driving mechanism; 31. Fixed plate 2; 32. Fixed plate 3; 33. Motor 2; 34. Gear 1; 4. Collapse prevention mechanism; 41. Fixed plate 4; 42. Circular plate; 43. Double-stage reciprocating threaded rod; 44. Bevel gear 2; 45. Rotating shaft; 46. Bevel gear 1; 47. One-way gear 4; 48. Rack; 49. Guide rod 2; 410. Moving plate; 411. Support cylinder; 412. Electromagnetic assembly; 5. Inner hole flash processing mechanism; 51, mounting frame; 52, inner gear ring; 53, one-way gear two; 54, sleeve; 55, one-way gear one; 56, cutting ring; 57, flash contact surface; 6, flash anti-sticking mechanism; 61, pipeline; 62, sealing connector; 63, nozzle; 64, one-way gear three; 71, hollow extension shaft; 72, slope one; 73, hollow input shaft; 74, slope two; 8, reinforced anti-twisting mechanism; 81, mounting cylinder; 82, extrusion port; 83, fixing frame; 84, electric push rod; 85, reinforcement plate; 86, rod hole; 87, spring; 88, limit rod; 89, mounting ring. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0022] Example: Refer to Figure 1-Figure 7 : A connecting structure of an extension shaft and an input shaft, comprising a workbench 1, and further comprising: A friction welding mechanism 2, which is installed on the top of the workbench 1; A driving mechanism 3 connected to the friction welding mechanism 2; The collapse prevention mechanism 4 is connected to the friction welding mechanism 2 and includes two support cylinders 411; The inner hole flash processing mechanism 5 is connected to the collapse prevention mechanism 4 and includes two cutting rings 56. The two cutting rings 56 have flash contact surfaces 57 formed on opposite sides thereof. A flash anti-sticking mechanism 6 connected to the collapse prevention mechanism 4; The reinforcing anti-twisting mechanism 8 , which is connected to the collapse preventing mechanism 4 , includes a plurality of reinforcing plates 85 .

[0023] The friction welding mechanism 2 includes a fixed plate 21, a motor 22 is fixed to one side of the fixed plate 21, a screw 23 is fixed to the output end of the motor 22, the external thread sleeve of the screw 23 is provided with a clamping and rotating structure 25, the clamping and rotating structure 25 includes a shell, a rotating motor and a three-jaw clamping assembly, the rotating motor is fixed inside the shell, the rotating motor is connected to the three-jaw chuck assembly, and drives the three-jaw chuck assembly to rotate, two guide rods 24 are fixed to one side of the fixed plate 21, the two guide rods 24 are sleeved inside the clamping and rotating structure 25, a clamping structure 26 is fixed to the top of the workbench 1, the clamping structure 26 includes two bases symmetrically fixed on the top of the workbench 1, and a hydraulic clamping assembly is arranged between the two bases.

[0024] The driving mechanism 3 includes a fixing plate 2 31 fixed on the top of the fixing plate 1 21 , a fixing plate 3 32 is fixed on the top of the fixing plate 2 31 , a motor 2 33 is fixed on one side of the fixing plate 3 32 , and a gear 1 34 is fixed on the output end of the motor 2 33 .

[0025] The collapse prevention mechanism 4 also includes a fixing plate 41 fixed on the top of the fixing plate 2 31, the fixing plate 41 is internally rotatably connected to a circular plate 42, the circular plate 42 is internally rotatably connected to a double-section reciprocating threaded rod 43 and is fixed to a guide rod 2 49, one end of the double-section reciprocating threaded rod 43 is externally fixed to a bevel gear 2 44, one side of the bevel gear 2 44 is meshed with a bevel gear 1 46, a rotating shaft 45 is fixed inside the bevel gear 1 46, the rotating shaft 45 is rotatably connected to the circular plate 42, a one-way gear 47 is fixed to the end of the rotating shaft 45 away from the bevel gear 1 46, a rack 48 is meshed on the top of the one-way gear 47, and the rack 48 is fixedly connected to the housing of the clamping rotating structure 25; The two reciprocating threads of the double-stage reciprocating threaded rod 43 are both threadedly sleeved with a movable plate 410, which is sleeved on the outside of the guide rod 49. The annular wall of the movable plate 410 is fixed with an electromagnetic component 412, and the two electromagnetic components 412 are magnetically connected to the two support tubes 411 respectively.

[0026] The inner hole flash processing mechanism 5 also includes a sleeve 54 fixed to the side of the circular plate 42 away from the clamping rotating structure 25, and a one-way gear 1 55 is installed on the outer wall of the end of the sleeve 54 away from the circular plate 42, and the one-way gear 1 55 is meshed with the gear 1 34; A mounting frame 51 is fixed on the top of the second fixing plate 31, an inner tooth ring 52 is fixed on the inner wall of the mounting frame 51, and a second one-way gear 53 is meshed with the inner teeth of the internal tooth ring 52, and the second one-way gear 53 is fixed to one end of the double-section reciprocating threaded rod 43; The two cutting rings 56 are respectively fixed to the adjacent ends of the two supporting tubes 411 .

[0027] The flash anti-sticking mechanism 6 includes a pipe 61 rotatably connected to the inside of the circular plate 42, the pipe 61 is sleeved inside the sleeve 54, a rotary sealing connector 62 is installed at one end of the pipe 61, the rotary sealing connector 62 is externally connected to a feeder, and a plurality of nozzles 63 are installed on the outside of the other end of the pipe 61, the pipe 61 is sleeved inside the moving plate 410 close to the circular plate 42, and a one-way gear three 64 is installed on the outer wall of one end of the pipe 61, and the one-way gear three 64 is meshed with gear one 34.

[0028] The strengthening anti-twisting mechanism 8 also includes a plurality of rod holes 86 opened at the ends away from the two support tubes 411, the rod holes 86 are sleeved with a limit rod 88 inside, the limit rod 88 is sleeved with a spring 87 outside, and one end of the spring 87 is fixedly connected to the inner wall of the rod hole 86; A mounting ring 89 is fixed to one end of the plurality of limit rods 88, and the other end of the spring 87 is fixedly connected to the mounting ring 89. A mounting tube 81 is fixed to one side of the mounting ring 89. The mounting tube 81 is provided with a plurality of extrusion openings 82, and the reinforcing plate 85 is sleeved inside the extrusion openings 82. A plurality of fixing frames 83 are fixed to the inner wall of the mounting tube 81 , and an electric push rod 84 is fixed to the fixing frame 83 . The output end of the electric push rod 84 is fixedly connected to the reinforcing plate 85 .

[0029] A controller is fixed on one side of the workbench 1 , and the controller is electrically connected to the motor 1 22 , the motor 2 33 , the feeder, the electric push rod 84 , the electromagnetic assembly 412 , the clamping rotating structure 25 and the clamping structure 26 .

[0030] An input shaft, which is applicable to the above-mentioned connection structure between an extension shaft and an input shaft, comprises a hollow input shaft 73 clamped in a clamping and rotating structure 25, a slope 74 is provided on the outer wall of one end of the hollow input shaft 73, and the hollow input shaft 73 is sleeved on the outside of the collapse prevention mechanism 4, the inner hole flash processing mechanism 5, the flash anti-sticking mechanism 6 and the strengthening anti-twisting mechanism 8. An extension shaft, which is applicable to the above-mentioned connection structure between an extension shaft and an input shaft, comprises a hollow extension shaft 71 clamped in a clamping structure 26, a slope 72 is provided on the inner wall of one end of the hollow extension shaft 71, and the hollow extension shaft 71 is sleeved on the outside of the collapse prevention mechanism 4, the inner hole flash processing mechanism 5, the flash anti-sticking mechanism 6 and the strengthening anti-twisting mechanism 8.

[0031] Working principle: The controller controls multiple electric push rods 84 to start pushing the reinforcing plate 85 to contact the inner wall of the hollow input shaft 73 and the hollow extension shaft 71 to strongly support them. When the hollow input shaft 73 and the hollow extension shaft 71 rotate, the reinforcing plate 85 can support the shaft wall to increase the torque of the rotational friction of the shaft wall, thereby avoiding the distortion of the shaft wall caused by the shaft wall being unable to withstand the torque of the rotational friction. The starter motor 2 33 drives the gear 1 34 to reverse, and the reverse direction of the gear 1 34 satisfies the direction of the one-way gear 3 64 to drive the pipe 61 to rotate, and the pipe 61 drives the nozzle 63 to rotate. The controller controls the feeder to inject oil into the pipe 61, and then the nozzle 63 rotates and evenly sprays it onto the flash contact surface 57; The clamping rotating structure 25 is started to drive the hollow input shaft 73 to rotate rapidly. When the hollow input shaft 73 rotates, the reinforcing plate 85 in contact with it is driven to rotate. The reinforcing plate 85 drives the electric push rod 84 and the mounting cylinder 81 to rotate. After reaching the specified speed, the motor 1 22 is started to drive the reciprocating screw 23 to rotate so that the clamping rotating structure 25 drives the hollow input shaft 73 to move, so that the slope 2 74 and the slope 1 72 are in contact with friction and heated. The design of the slope 1 72 and the slope 2 74 can increase the end face contact area of ​​the hollow input shaft 73 and the hollow extension shaft 71, disperse the pressure to reduce local stress concentration, and make the welding more uniform. The contact between the inclined surfaces disperses the pressure of the impact and reduces the possibility of the collapse of the hollow shaft. When the clamping rotating structure 25 pushes the hollow input shaft 73 to move, it drives the rack 48 to move synchronously. The moving direction of the rack 48 satisfies the direction of the rotation of the rotating shaft 45 driven by the one-way gear four 47, so that the one-way gear four 47 drives the rotating shaft 45 and the bevel gear one 46 to rotate, and the bevel gear one 46 drives the bevel gear two 44 and the two-stage reciprocating threaded rod 43 to rotate. Although the rotation direction of the two-stage reciprocating threaded rod 43 at this time drives the internal one-way gear two 53 The internal ratchet wheel rotates, the rotation direction of the ratchet wheel cannot drive the teeth of the one-way gear two 53 to rotate. Therefore, when the inner gear ring 52 limits the one-way gear two 53, the one-way gear two 53 cannot rotate, and the two-stage reciprocating threaded rod 4 The rotation makes the two moving plates 410 move toward the clamping structure 26 at the same time, and synchronously drives the support tube 411 and the cutting ring 56 and other structures to move. When the support tube 411 located in the hollow input shaft 73 moves, it drives the limit rod 88 to move synchronously to the pull-out rod hole 86, and stretches the spring 87, while the support tube 411 in the hollow extension shaft 71 squeezes the limit rod 88 and the rod hole 86. The arrangement of the spring 87 and the limit rod 88 can ensure that the shaft wall is strengthened while allowing the support tube 411 to have a certain activity space, because the weld between the hollow input shaft 73 and the hollow extension shaft 71 is gradually reduced as the friction material, and the weld will move toward the clamping structure. 26 is close to each other. In order to make the weld seam always located between the two cutting rings 56, it is necessary to coordinate with the moving distance of the clamping rotating structure 25. The clamping rotating structure 25 drives the rack 48 to move. The movement of the rack 48 drives the one-way gear four 47 to rotate. The one-way gear four 47 drives the rotating shaft 45 and the bevel gear one 46 to rotate. The bevel gear one 46 drives the bevel gear two 44 and the double-section reciprocating threaded rod 43 to rotate. The rotation of the double-section reciprocating threaded rod 43 drives the two moving plates 410 to move toward the direction of the clamping structure 26 at the same time, and at the same time drives the support cylinder 411 and the cutting ring 56 and other structures to move. The movement of the cutting ring 56 is realized by the movement of the clamping rotating structure 25. The present invention is realized, and the moving distance of the clamping rotating structure 25 is proportional to the moving distance of the cutting ring 56, so that when the weld changes its position, the cutting ring 56 is always located on both sides of the weld, and the flash generated by the friction of the weld inward will pass through the gap between the two cutting rings 56 and enter the inside of the two cutting rings 56, and then the flash material will contact the flash contact surface 57, and the grease on the flash contact surface 57 will reduce the friction between the flash contact surface 57 and the flash material, so as to prevent the flash contact surface 57 and the flash material from solidifying together, and after the flash material enters through the narrow gap of the two cutting rings 56, the connection area between the flash material and the weld can be reduced, and the thickness of the flash can be reduced, thereby reducing the difficulty of processing; During friction welding, the hollow shaft wall is relatively weak, and strong squeezing and rotation may easily cause the shaft wall to collapse. The support cylinder 411 supports the inner wall of the hollow input shaft 73 and the hollow extension shaft 71 during rotation, thereby reducing the possibility of collapse. Starting motor 2 33 drives gear 1 34 to rotate forward, and the forward rotation of gear 1 34 satisfies the direction of rotation of one-way gear 1 55 driving sleeve 54, and the rotation of sleeve 54 drives circular plate 42 to rotate, and the rotation of circular plate 42 drives the double-stage reciprocating threaded rod 43, bevel gear 2 44, bevel gear 1 46, rotating shaft 45, one-way gear 4 47, guide rod 2 49, moving plate 410, supporting cylinder 411 and cutting ring 56 and other structures to rotate. When rotating, because rack 48 moves with the clamping rotating structure 25, rack 48 is disengaged from one-way gear 4 47, so one-way gear 4 47 will not be blocked and limited by rack 48 when rotating, and circular plate 42 drives the double-stage reciprocating threaded rod When 43 rotates with the sleeve 54 as the center, the two-stage reciprocating threaded rod 43 drives the one-way gear 2 53 to follow the rotation. When moving, the meshing rotation direction of the one-way gear 2 53 and the inner gear ring 52 meets the direction of driving the two-stage reciprocating threaded rod 43 to rotate, so the one-way gear 2 53 drives the two-stage reciprocating threaded rod 43 to rotate through the internal ratchet component, so that the moving plate 410 continues to move toward the wire tail of the reciprocating thread. When moving, the cutting ring 56 rotating with the circular plate 42 squeezes the flash material to saw off the flash. After sawing off, the moving plate 410 continues to move until it moves to the wire tail. The moving plate 410 that moves to the wire tail drives the cutting ring 56 to reset, and the motor 2 33 is turned off after resetting. The controller controls the operation of the clamping rotating structure 25 and the clamping structure 26, manually removes the hollow extension shaft 71 and the hollow input shaft 73, and then starts the motor 22 to make the clamping rotating structure 25 drive the rack 48 to reset. During the reset, the rack 48 is meshed with the one-way gear four 47, but at this time the moving direction of the rack 48 does not meet the direction of the one-way gear four 47 driving the rotating shaft 45 to rotate. After the reset is completed, wait for the next processing.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A connecting structure of an extension shaft and an input shaft, comprising a workbench, characterized in that: Also includes: A driving mechanism connected to the friction welding mechanism includes a fixing plate 2 fixed on the top of the fixing plate 1; A collapse prevention mechanism, which is connected to the friction welding mechanism, includes two support cylinders; The collapse prevention mechanism also includes a fixing plate four fixed on the top of the fixing plate two, the fixing plate four is internally connected to a circular plate for rotation, the circular plate is internally connected to a double-section reciprocating threaded rod and fixed to a guide rod two for rotation, a bevel gear two is externally fixed to one end of the double-section reciprocating threaded rod, a bevel gear one is meshed with one side of the bevel gear two, a rotating shaft is fixed inside the bevel gear one, the rotating shaft is rotationally connected to the circular plate, a one-way gear four is fixed to the end of the rotating shaft away from the bevel gear one, a rack is meshed with the top of the one-way gear four, and the rack is fixedly connected to the shell of the clamping rotating structure; The collapse prevention mechanism also includes a movable plate respectively threadedly sleeved on the outside of the two reciprocating threads of the double-section reciprocating threaded rod, the movable plate is sleeved on the outside of the second guide rod, an electromagnetic component is fixed to the annular wall of the movable plate, and the two electromagnetic components are respectively connected to the two support tubes by magnetic attraction; An inner hole flash processing mechanism, which is connected to the collapse prevention mechanism, comprises two cutting rings, and the two cutting rings are provided with flash contact surfaces on opposite sides; The inner hole flash processing mechanism also includes a sleeve fixed on the side of the circular plate away from the clamping rotating structure, and a one-way gear 1 is installed on the outer wall of the end of the sleeve away from the circular plate, and the one-way gear 1 is meshed with the gear 1; A mounting frame is fixed on the top of the second fixing plate, an inner tooth ring is fixed on the inner wall of the mounting frame, the inner teeth of the inner tooth ring are meshed with a one-way gear 2, and the one-way gear 2 is fixed to one end of the double-section reciprocating threaded rod; The two cutting rings are respectively fixed on the adjacent ends of the two supporting tubes.

2. The connection structure of the extension shaft and the input shaft according to claim 1, characterized in that: Also included is a friction welding mechanism mounted on the top of the workbench; The friction welding mechanism includes a fixed plate 1, a motor 1 is fixed to one side of the fixed plate 1, a screw is fixed to the output end of the motor 1, the external thread sleeve of the screw is provided with a clamping and rotating structure, two guide rods 1 are fixed to one side of the fixed plate 1, the two guide rods are set inside the clamping and rotating structure, and a clamping structure is fixed to the top of the workbench.

3. The connection structure of the extension shaft and the input shaft according to claim 2, characterized in that: A fixing plate three is fixed on the top of the fixing plate two, a motor two is fixed on one side of the fixing plate three, and a gear one is fixed on the output end of the motor two.

4. The connection structure of the extension shaft and the input shaft according to claim 3, characterized in that: Also included is a flash anti-sticking mechanism connected to the collapse prevention mechanism; The flash anti-sticking mechanism includes a pipe rotatably connected to the inside of a circular plate, the pipe is sleeved inside a sleeve, a rotary sealing connector is installed at one end of the pipe, the rotary sealing connector is externally connected to a feeder, and a plurality of nozzles are externally installed at the other end of the pipe, the pipe is sleeved inside a movable plate close to the circular plate, a one-way gear three is installed on the outer wall of one end of the pipe, and the one-way gear three is meshed with gear one.

5. The connection structure of the extension shaft and the input shaft according to claim 4, characterized in that: Also included is a reinforcement anti-twist mechanism connected to the collapse prevention mechanism, comprising a plurality of reinforcement plates; The strengthening anti-twisting mechanism also includes a plurality of rod holes opened at one end of the two support tubes away from each other, the rod holes are sleeved with a limit rod inside, the limit rods are sleeved with a spring outside, and one end of the spring is fixedly connected to the inner wall of the rod hole; A mounting ring is fixed to one end of the plurality of limit rods, the other end of the spring is fixedly connected to the mounting ring, a mounting tube is fixed to one side of the mounting ring, a plurality of extrusion ports are opened on the mounting tube, and the reinforcing plate is sleeved inside the extrusion ports; A plurality of fixing frames are fixed on the inner wall of the installation cylinder, an electric push rod is fixed on the fixing frame, and an output end of the electric push rod is fixedly connected to the reinforcing plate.

6. The connection structure of the extension shaft and the input shaft according to claim 5, characterized in that: A controller is fixed on one side of the workbench, and the controller is electrically connected to the motor 1, the motor 2, the feeder, the electric push rod, the electromagnetic component, the clamping rotating structure and the clamping structure respectively.

Images