Motor home axle welding device

Abstract

The invention relates to the technical field of axle welding equipment, and discloses a motor home axle welding device which comprises a device body, a sliding fixing frame, a lifting base, a rotary fixing frame, a driving motor and a welding mechanism, the sliding fixing frame is installed at the top of the device body, and the lifting base is fixedly installed at the top of the device body; the rotary fixing frame is mounted at the top of the device body, the driving motor is fixedly mounted at the top of the device body, and the welding mechanism is mounted in the device body. The two ends of the axle are fixed through the sliding fixing frame and the rotating fixing frame at the same time, the axle can be driven to rotate through the driving motor after fixing, and during welding, the welding mechanism keeps the fixed position, so that circular welding seams on the axle can be evenly welded; therefore, cracking caused by uneven weld joints due to the fact that the angle distance is not controlled in place in the welding process is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle axle welding equipment, in particular to a vehicle axle welding device for a recreational vehicle. Background Art

[0002] Welding is a production process that usually melts the joining metals or other joining materials under high temperature. Welding plays an important role in industrial production processes, and welding operations can be used in a variety of scenarios.

[0003] Chinese patent CN117206738B discloses a vehicle axle welding device, which connects a welding head to a three-axis controller and controls the welding head to move three-dimensionally through an external controller, so that the welding head welds the welding part of the vehicle axle.

[0004] In the above patents and prior art, the welding tracks at the connection points of the axles are mostly circular tracks. There are limitations on the angle change of the welding gun during the welding process. When welding circular welds, the angle and distance between the welding gun and the weld are difficult to control, resulting in uneven weld thickness and easy cracking. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A recreational vehicle axle welding device comprises a device body, a sliding fixing frame, a lifting base, a rotating fixing frame, a driving motor and a welding mechanism, wherein the sliding fixing frame is installed on the top of the device body, the lifting base is fixedly installed on the top of the device body, the rotating fixing frame is installed on the top of the device body, the driving motor is fixedly installed on the top of the device body, the welding mechanism is installed inside the device body, an axle limiting platform is slidably installed on the movable end of the lifting base, a moving shaft is rotatably installed inside the device body, and a moving screw is provided on the outside of the moving shaft;

[0007] The sliding fixing frame, the lifting base, the rotating fixing frame and the driving motor are arranged in sequence on the top of the device body;

[0008] The bottom of the sliding fixed frame is movably connected to the moving screw outside the moving rotating shaft, and the movable end of the driving motor is respectively connected to the rotating fixed frame and the moving rotating shaft through a transmission mechanism;

[0009] The axle limit platform can fix the position of the axle, the lifting base can be extended to drive the position of the axle limit platform to rise, and the axle limit platform can drive the position of the axle to rise when it rises. When the drive motor rotates, it can drive the movable shaft to rotate through the transmission mechanism, and when the movable shaft rotates, it can drive the movable screw to rotate synchronously, and when the movable screw rotates, it can drive the sliding fixed frame to move, and when the sliding fixed frame moves, it can squeeze the axle to approach the direction of the rotating fixed frame. The sliding fixed frame and the rotating fixed frame can fix the position of the axle, and when the drive motor rotates, it can drive the axle to rotate through the rotating fixed frame.

[0010] Preferably, the sliding fixed frame includes a sliding frame base, the sliding frame base is located on the top of the device body, a sliding frame connecting plate is fixedly installed on the top of the sliding frame base, a sliding frame rotating shaft is rotatably installed inside the sliding frame connecting plate, a sliding frame connecting rod is slidably installed inside the sliding frame rotating shaft, a sliding frame spring is fixedly connected to one side of the sliding frame rotating shaft, one end of the sliding frame connecting rod is fixedly connected to the sliding frame fixing module, and a threaded connecting block is fixedly installed on the bottom of the sliding frame base.

[0011] Preferably, the sliding frame rotating shaft and the sliding frame fixing module are connected via a sliding frame spring, one end of the sliding frame connecting rod is fixedly connected to the sliding frame fixing module, the outside of the sliding frame connecting rod is slidably connected to the sliding frame rotating shaft, and the other end of the sliding frame connecting rod passes through the sliding frame rotating shaft;

[0012] The sliding frame fixing module is rotatably connected to the sliding frame connecting plate via a sliding frame rotating shaft, and the sliding frame fixing module is slidably connected to the sliding frame rotating shaft via a sliding frame connecting rod.

[0013] Preferably, the interior of the threaded connection block is threadably connected to the exterior of the moving screw rod, and when the moving shaft drives the moving screw rod to rotate, the sliding frame base can be driven to rotate through the threaded connection block.

[0014] Preferably, the rotating fixed frame includes a rotating frame base, the rotating frame base is fixedly installed on the top of the device body, a rotating frame connecting plate is fixedly installed on the top of the rotating frame base, a rotating frame shaft is rotatably installed inside the rotating frame connecting plate, a transmission connecting rod is slidably installed inside the rotating frame shaft, one end of the transmission connecting rod is fixedly connected to a rotating frame fixing module, the other end of the transmission connecting rod is fixedly connected to a rotating frame block, and a rotating frame spring is fixedly installed on one side of the rotating frame shaft.

[0015] Preferably, one side of the rotating frame fixing module is connected to the rotating frame shaft via a rotating frame spring, and one side of the rotating frame spring is fixedly connected to the rotating frame clamping block via a transmission connecting rod;

[0016] The rotating frame fixing module is slidably connected to the rotating frame shaft through a transmission connecting rod, and the rotating frame fixing module is rotationally connected to the rotating frame connecting plate through the rotating frame shaft.

[0017] Preferably, the structure of the rotating frame fixing module is the same as that of the sliding frame fixing module, a baffle is provided at the bottom of the rotating frame fixing module, the sliding groove inside the rotating frame fixing module is fitted with the mounting blocks at both ends of the axle, and a card slot is provided inside the rotating frame fixing module to be carded with the mounting blocks at both ends of the axle.

[0018] Preferably, the transmission mechanism includes a roller mounting shaft, a rotating shaft roller, a reverse ratchet and a forward ratchet, the roller mounting shaft is rotatably mounted on the driving end of the driving motor, the rotating shaft roller is fixedly mounted on the outside of the movable rotating shaft, the reverse ratchet and the forward ratchet are slidably mounted on the outside of the driving end of the driving motor, one side of the roller mounting shaft is fixedly connected to the motor roller, the external movable side of the motor roller is equipped with a transmission belt, the inside of the motor roller is fixedly mounted with a roller block, the outside of the reverse ratchet is fixedly mounted with a reverse block, the outside of the forward ratchet is fixedly mounted with a forward block, one side of the forward ratchet is fixedly connected with a ratchet connecting sleeve, the inside of the ratchet connecting sleeve is fixedly mounted with a ratchet spring, and the outside of the ratchet connecting sleeve is fixedly mounted with a sleeve connecting block.

[0019] Preferably, the motor roller is rotatably mounted on the outside of the driving end of the driving motor through a roller mounting shaft, the outside of the motor roller is transmission-connected with the rotating shaft roller through a transmission belt, the inside of the motor roller is clamped with the reverse clamping block outside the reverse ratchet through a roller clamping block, and the inside of the motor roller is clamped with the positive clamping block outside the positive ratchet through a roller clamping block;

[0020] The front and rear ends of the roller clamping block, the reverse clamping block and the forward clamping block are all conical structures.

[0021] Preferably, the reverse ratchet and the inner ring are fixedly connected to the inner ring of the forward ratchet, the outer rings of the reverse ratchet and the forward ratchet are independent of each other, and the ratchet connecting sleeve is fixedly connected to the inner ring of the forward ratchet;

[0022] The ratchet connecting sleeve is slidably installed on the outside of the power end of the driving motor, the inside of the ratchet connecting sleeve is fixedly connected to the power end of the driving motor through a ratchet spring, and the outside of the ratchet connecting sleeve can be clamped with the rotating frame clamp on the transmission connecting rod through a sleeve connecting clamp.

[0023] Compared with the prior art, the present invention provides a motorhome axle welding device, which has the following beneficial effects:

[0024] 1. This type of RV axle welding device fixes both ends of the axle at the same time through a sliding fixing frame and a rotating fixing frame, and after fixation, the axle can be driven to rotate by a driving motor. During welding, the welding mechanism maintains a fixed position so that the circular weld on the axle can be welded evenly, thereby preventing the angle distance from being not properly controlled during welding, resulting in uneven welds and cracking.

[0025] 2. In this RV axle welding device, the sliding frame fixing module and the rotating frame fixing module for fixing the axle are respectively connected to the sliding frame rotating shaft and the rotating frame rotating shaft through the sliding frame spring and the rotating frame spring. After the axle is fixed, the excess movement distance of the sliding fixing frame will only compress the sliding frame spring and the rotating frame spring without damaging the axle body.

[0026] 3. This type of RV axle welding device is equipped with a forward ratchet and a reverse ratchet to connect the driving end of the driving motor and the motor roller. When the sliding fixing frame has not completed the fixation of the axle, the forward rotation of the driving motor can drive the sliding fixing frame to move and fix the position of the axle. After the fixation of the axle is completed, the forward rotation of the driving motor can only drive the axle to rotate, and at this time, when the driving motor rotates in the reverse direction, it can drive the sliding fixing frame to release the clamping of the axle, so that the axle can be quickly fixed, clamped and rotated. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of the three-dimensional structure of a motorhome axle welding device according to the present invention Figure 1 ;

[0028] Figure 2 A schematic diagram of the three-dimensional structure of a motorhome axle welding device according to the present invention Figure 2 ;

[0029] Figure 3 It is a three-dimensional structural schematic diagram of the vehicle axle of the present invention;

[0030] Figure 4 It is a three-dimensional structural schematic diagram of a sliding fixing frame of a recreational vehicle axle welding device of the present invention;

[0031] Figure 5 It is a three-dimensional schematic diagram of a rotating fixing frame of a recreational vehicle axle welding device of the present invention;

[0032] Figure 6 It is a three-dimensional structural schematic diagram of a rotating fixing frame module of a recreational vehicle axle welding device of the present invention;

[0033] Figure 7 The three-dimensional structure diagram of the transmission mechanism of a motorhome axle welding device of the present invention is shown in FIG. Figure 1 ;

[0034] Figure 8 The three-dimensional structure diagram of the transmission mechanism of a motorhome axle welding device of the present invention is shown in FIG. Figure 2 ;

[0035] Fig. 9 A schematic diagram of the internal structure of a motor roller of a recreational vehicle axle welding device according to the present invention;

[0036] Fig.10 The present invention is a schematic cross-sectional structural diagram of a ratchet connecting sleeve of a recreational vehicle axle welding device.

[0037] In the figure: 1. Device body; 2. Sliding fixed frame; 21. Sliding frame base; 22. Sliding frame connecting plate; 23. Sliding frame rotating shaft; 24. Sliding frame connecting rod; 25. Sliding frame spring; 26. Sliding frame fixing module; 27. Threaded connection block; 3. Lifting base; 4. Axle limit platform; 5. Rotating fixed frame; 51. Rotating frame base; 52. Rotating frame connecting plate; 53. Rotating frame rotating shaft; 54. Transmission connecting rod; 55. Rotating frame spring; 56. Rotating frame fixing module; 57, rotating frame block; 6, driving motor; 7, transmission mechanism; 71, roller mounting shaft; 72, motor roller; 73, transmission belt; 74, rotating shaft roller; 75, roller block; 76, reverse ratchet; 77, reverse block; 78, forward ratchet; 79, forward block; 710, ratchet spring; 711, ratchet connecting sleeve; 712, sleeve connecting block; 8, welding mechanism; 9, moving rotating shaft; 10, moving screw. DETAILED DESCRIPTION

[0038] 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.

[0039] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present application proposes a motorhome axle welding device.

[0040] Embodiment 1:

[0041] See also Figure 1 - Fig.10A RV axle welding device comprises a device body 1, a sliding fixing frame 2, a lifting base 3, a rotating fixing frame 5, a driving motor 6 and a welding mechanism 8. The sliding fixing frame 2 is installed on the top of the device body 1, the lifting base 3 is fixedly installed on the top of the device body 1, the rotating fixing frame 5 is installed on the top of the device body 1, the driving motor 6 is fixedly installed on the top of the device body 1, the welding mechanism 8 is installed inside the device body 1, the movable end of the lifting base 3 is slidably installed with an axle limit platform 4, the inside of the device body 1 is rotatably installed with a moving shaft 9, and the outside of the moving shaft 9 is provided with a moving screw 10;

[0042] The sliding fixing frame 2, the lifting base 3, the rotating fixing frame 5 and the driving motor 6 are arranged in sequence on the top of the device body 1;

[0043] The bottom of the sliding fixed frame 2 is movably connected to the moving screw 10 outside the moving rotating shaft 9, and the movable end of the driving motor 6 is respectively connected to the rotating fixed frame 5 and the moving rotating shaft 9 through the transmission mechanism 7;

[0044] The axle limit platform 4 can fix the position of the axle, the lifting base 3 can extend to drive the axle limit platform 4 to rise, and when the axle limit platform 4 rises, it can drive the position of the axle to rise, and when the driving motor 6 rotates, it can drive the moving shaft 9 to rotate through the transmission mechanism 7, and when the moving shaft 9 rotates, it can drive the moving screw 10 to rotate synchronously, and when the moving screw 10 rotates, it can drive the sliding fixed frame 2 to move, and when the sliding fixed frame 2 moves, it can squeeze the axle to approach the direction of the rotating fixed frame 5, and the sliding fixed frame 2 and the rotating fixed frame 5 can fix the position of the axle, and when the driving motor 6 rotates, it can drive the axle to rotate through the rotating fixed frame 5.

[0045] When working, first place the axle on the axle limit platform 4, and then drive the axle limit platform 4 to rise through the lifting base 3. When the axle limit platform 4 rises, it can drive the axle to rise. During the rising process of the axle limit platform 4, the driving motor 6 rotates forward and drives the moving shaft 9 to rotate through the transmission mechanism 7. When the moving shaft 9 rotates, it can drive the sliding fixing frame 2 to move in the direction of the rotating fixing frame 5 through the moving screw 10. When the sliding fixing frame 2 moves, it can drive the axle to move. When the axle moves, it can drive the axle limit platform 4 to slide on the lifting base 3. After the sliding fixing frame 2 and the rotating fixing frame 5 fix the position of the axle, the lifting base 3 drives the axle limit platform 4 to drop, so that the position of the axle that needs to be welded is suspended. During the movement of the sliding fixing frame 2, It is enough to drive the rotating fixed frame 5 to engage with the transmission mechanism 7, so that when the driving motor 6 rotates forward, the transmission mechanism 7 drives the axle to rotate between the sliding fixed frame 2 and the rotating fixed frame 5. When the axle rotates, the welding mechanism 8 remains in a fixed state so that the circular weld of the axle can be welded. After the welding is completed, the driving motor 6 rotates in the opposite direction to drive the sliding fixed frame 2 away from the rotating fixed frame 5. When the sliding fixed frame 2 gradually moves away from the rotating fixed frame 5, the lifting base 3 extends to drive the axle limit platform 4, thereby releasing the fixing of the sliding fixed frame 2 and the rotating fixed frame 5 to the axle, so that the axle is placed on the axle limit platform 4. During welding, the welding mechanism 8 remains in a fixed position so that the circular weld on the axle can be evenly welded, thereby preventing the angle distance from being not properly grasped during the welding process, resulting in uneven welds and cracks.

[0046] Embodiment 2:

[0047] The difference from the above embodiment is that, please refer to Figure 2 - Figure 4 The sliding fixed frame 2 includes a sliding frame base 21, which is located at the top of the device body 1. A sliding frame connecting plate 22 is fixedly installed on the top of the sliding frame base 21. A sliding frame shaft 23 is rotatably installed inside the sliding frame connecting plate 22. A sliding frame connecting rod 24 is slidably installed inside the sliding frame shaft 23. A sliding frame spring 25 is fixedly connected to one side of the sliding frame shaft 23. One end of the sliding frame connecting rod 24 is fixedly connected to a sliding frame fixing module 26. A threaded connecting block 27 is fixedly installed at the bottom of the sliding frame base 21.

[0048] The sliding frame rotating shaft 23 and the sliding frame fixing module 26 are connected via a sliding frame spring 25, one end of the sliding frame connecting rod 24 is fixedly connected to the sliding frame fixing module 26, the outside of the sliding frame connecting rod 24 is slidably connected to the sliding frame rotating shaft 23, and the other end of the sliding frame connecting rod 24 passes through the sliding frame rotating shaft 23;

[0049] The sliding frame fixing module 26 is rotatably connected to the sliding frame connecting plate 22 via the sliding frame rotating shaft 23 , and the sliding frame fixing module 26 is slidably connected to the sliding frame rotating shaft 23 via the sliding frame connecting rod 24 .

[0050] The inside of the threaded connection block 27 is threadedly connected to the outside of the moving screw 10 . When the moving shaft 9 drives the moving screw 10 to rotate, the sliding frame base 21 can be driven to rotate through the threaded connection block 27 .

[0051] When the driving motor 6 rotates forward, it can drive the moving shaft 9 to rotate. When the moving shaft 9 rotates, it can drive the moving screw 10 to rotate synchronously. When the moving screw 10 rotates, it can drive the sliding frame base 21 to move toward the rotating fixed frame 5 on the device body 1 through the threaded connecting block 27. When the sliding frame base 21 moves, it can drive the sliding frame fixing module 26 to push the axle to move, and during the movement, the lifting base 3 drives the position of the axle to rise, so that one end of the axle is stuck in the interior of the sliding frame fixing module 26. When the rotating fixed frame 5 drives the front of the vehicle to rotate, the sliding frame fixing module 26 can also move on the sliding frame connecting plate 22 through the sliding frame rotating shaft 23. When the distance between the sliding fixed frame 2 and the rotating fixed frame 5 is gradually shortened, the sliding frame spring 25 can also relieve the pressure of the sliding frame fixing module 26 on the axle to prevent the axle from being damaged. After the welding is completed, the driving motor 6 rotates in the opposite direction, which can drive the sliding fixed frame 2 to move away from the rotating fixed frame 5 by the same principle, and place the welded axle on the axle limit platform 4.

[0052] Embodiment three:

[0053] The difference from the above embodiment is that, please refer to Figure 2 - Figure 6 The rotating fixed frame 5 includes a rotating frame base 51, which is fixedly installed on the top of the device body 1. A rotating frame connecting plate 52 is fixedly installed on the top of the rotating frame base 51. A rotating frame shaft 53 is rotatably installed inside the rotating frame connecting plate 52. A transmission connecting rod 54 is slidably installed inside the rotating frame shaft 53. One end of the transmission connecting rod 54 is fixedly connected to a rotating frame fixing module 56, and the other end of the transmission connecting rod 54 is fixedly connected to a rotating frame block 57. A rotating frame spring 55 is fixedly installed on one side of the rotating frame shaft 53.

[0054] One side of the rotating frame fixing module 56 is connected to the rotating frame shaft 53 via the rotating frame spring 55, and one side of the rotating frame spring 55 is fixedly connected to the rotating frame clamping block 57 via the transmission connecting rod 54;

[0055] The rotating frame fixing module 56 is slidably connected to the rotating frame shaft 53 via the transmission connecting rod 54 , and the rotating frame fixing module 56 is rotationally connected to the rotating frame connecting plate 52 via the rotating frame shaft 53 .

[0056] The structure of the rotating frame fixing module 56 is the same as that of the sliding frame fixing module 26. A baffle is set at the bottom of the rotating frame fixing module 56, and the sliding groove inside the rotating frame fixing module 56 is in contact with the mounting blocks at both ends of the axle. The rotating frame fixing module 56 is provided with a card slot inside to be clamped with the mounting blocks at both ends of the axle.

[0057] When the sliding fixed frame 2 pushes the axle to move toward the rotating fixed frame 5 and the lifting base 3 drives the axle to move upward, the rotating frame fixing module 56 and the sliding frame fixing module 26 can be clamped and fixed to the position of the axle, and when the rotating frame fixing module 56 and the sliding frame fixing module 26 squeeze the axle, the rotating frame spring 55 can be contracted and the transmission connecting rod 54 can be clamped with the transmission mechanism 7, and the transmission connecting rod 54 can be clamped with the transmission mechanism 7 through the rotating frame clamping block 57. After the transmission connecting rod 54 is clamped with the transmission mechanism 7, the driving motor 6 can drive the transmission connecting rod 54 to rotate when the transmission connecting rod 54 rotates. When the transmission connecting rod 54 rotates, it can drive the rotating frame fixing module 56 to rotate. When the rotating frame fixing module 56 rotates, it can drive the axle to rotate, so as to facilitate welding of the circular gap on the axle. After welding is completed, the sliding fixed frame 2 moves away from the rotating fixed frame 5, and the rotating frame fixing module 56 and the sliding frame fixing module 26 also relax the clamping and fixing of the axle. The rotating frame spring 55 rebounds and drives the transmission connecting rod 54 to release the clamping connection with the transmission mechanism 7.

[0058] Embodiment 4:

[0059] The difference from the above embodiment is that, please refer to Figure 7 - Fig.10 The transmission mechanism 7 includes a roller mounting shaft 71, a rotating shaft roller 74, a reverse ratchet 76 and a forward ratchet 78. The roller mounting shaft 71 is rotatably mounted on the driving end of the driving motor 6, the rotating shaft roller 74 is fixedly mounted on the outside of the movable rotating shaft 9, the reverse ratchet 76 and the forward ratchet 78 are slidably mounted on the outside of the driving end of the driving motor 6, one side of the roller mounting shaft 71 is fixedly connected to the motor roller 72, the external movable part of the motor roller 72 is equipped with a transmission belt 73, the inside of the motor roller 72 is fixedly mounted with a roller block 75, the outside of the reverse ratchet 76 is fixedly mounted with a reverse block 77, the outside of the forward ratchet 78 is fixedly mounted with a forward block 79, one side of the forward ratchet 78 is fixedly connected with a ratchet connecting sleeve 711, the inside of the ratchet connecting sleeve 711 is fixedly mounted with a ratchet spring 710, and the outside of the ratchet connecting sleeve 711 is fixedly mounted with a sleeve connecting block 712.

[0060] The motor roller 72 is rotatably mounted on the outside of the driving end of the driving motor 6 through the roller mounting shaft 71. The outside of the motor roller 72 is connected to the rotating shaft roller 74 through the transmission belt 73. The inside of the motor roller 72 is connected to the reverse block 77 on the outside of the reverse ratchet 76 through the roller block 75. The inside of the motor roller 72 is connected to the positive block 79 on the outside of the positive ratchet 78 through the roller block 75.

[0061] The front and rear ends of the roller clamping block 75, the reverse clamping block 77 and the forward clamping block 79 are all conical structures.

[0062] The reverse ratchet 76 and the inner ring are fixedly connected to the inner ring of the forward ratchet 78. The outer rings of the reverse ratchet 76 and the forward ratchet 78 are independent of each other. The ratchet connecting sleeve 711 is fixedly connected to the inner ring of the forward ratchet 78.

[0063] The ratchet connecting sleeve 711 is slidably installed on the outside of the power end of the driving motor 6, and the inside of the ratchet connecting sleeve 711 is fixedly connected to the power end of the driving motor 6 through the ratchet spring 710. The outside of the ratchet connecting sleeve 711 can be clamped with the rotating frame block 57 on the transmission connecting rod 54 through the sleeve connecting block 712.

[0064] The cam 75 is engaged with the first gear 76 by the spring 72, and the second gear 77 is engaged with the second gear 78 by the spring 73. When the cam 75 is engaged with the first gear 76, the cam 75 is engaged with the second gear 78. When the cam 75 is engaged with the first gear 76, the cam 77 is engaged with the first gear 78. The cam 72 is then driven to rotate by the motor roller 72, and when the driving motor 6 drives the ratchet connecting sleeve 711 to rotate, the transmission connecting rod 54 can be driven to rotate through the sleeve connecting block 712 and the rotating frame block 57, thereby driving the axle to rotate for welding operation. After welding is completed, the driving motor 6 can rotate in the reverse direction and can drive the motor roller 72 to rotate through the positive ratchet 78. At this time, when the motor roller 72 drives the movable shaft 9 to rotate through the shaft roller 74, it can drive the sliding fixed frame 2 away from the rotating fixed frame 5 and release the connection between the sleeve connecting block 712 and the rotating frame block 57. Then the ratchet spring 710 rebounds and drives the positive ratchet 78 and the reverse ratchet 76 through the ratchet connecting sleeve 711, so that the motor roller 72 returns to the initial state and continues to be engaged with the reverse ratchet 76. After the driving motor 6 rotates forward to fix the axle, it can drive the axle to rotate, and the reverse rotation can relax the clamping of the axle, so that the fixed clamping and rotation of the axle can be quickly completed.

[0065] While embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A recreational vehicle axle welding device, comprising a device body (1), a sliding fixing frame (2), a lifting base (3), a rotating fixing frame (5), a driving motor (6) and a welding mechanism (8), wherein the sliding fixing frame (2) is installed on the top of the device body (1), the lifting base (3) is fixedly installed on the top of the device body (1), the rotating fixing frame (5) is installed on the top of the device body (1), the driving motor (6) is fixedly installed on the top of the device body (1), and the welding mechanism (8) is installed inside the device body (1). Features: The movable end of the lifting base (3) is slidably mounted with a vehicle bridge limit platform (4); a movable shaft (9) is rotatably mounted inside the device body (1); and a movable screw (10) is provided outside the movable shaft (9); The sliding fixing frame (2), the lifting base (3), the rotating fixing frame (5) and the driving motor (6) are arranged in sequence on the top of the device body (1); The bottom of the sliding fixed frame (2) is movably connected to a moving screw (10) outside the moving rotating shaft (9), and the movable end of the driving motor (6) is respectively connected to the rotating fixed frame (5) and the moving rotating shaft (9) through a transmission mechanism (7); The axle limit platform (4) can fix the position of the axle, the lifting base (3) can extend to drive the axle limit platform (4) to rise, and when the axle limit platform (4) rises, it can drive the axle to rise, and when the drive motor (6) rotates, it can drive the moving shaft (9) to rotate through the transmission mechanism (7), and when the moving shaft (9) rotates, it can drive the moving screw (10) to rotate synchronously, and when the moving screw (10) rotates, it can drive the sliding fixing frame (2) to move, and when the sliding fixing frame (2) moves, it can squeeze the axle to approach the rotating fixing frame (5), and the sliding fixing frame (2) and the rotating fixing frame (5) can fix the position of the axle, and when the drive motor (6) rotates, it can drive the axle to rotate through the rotating fixing frame (5).

2. A recreational vehicle axle welding device according to claim 1, Features: The sliding fixed frame (2) comprises a sliding frame base (21), the sliding frame base (21) is located at the top of the device body (1), a sliding frame connecting plate (22) is fixedly installed on the top of the sliding frame base (21), a sliding frame rotating shaft (23) is rotatably installed inside the sliding frame connecting plate (22), a sliding frame connecting rod (24) is slidably installed inside the sliding frame rotating shaft (23), a sliding frame spring (25) is fixedly connected to one side of the sliding frame rotating shaft (23), one end of the sliding frame connecting rod (24) is fixedly connected to a sliding frame fixing module (26), and a threaded connecting block (27) is fixedly installed at the bottom of the sliding frame base (21).

3. A recreational vehicle axle welding device according to claim 2, Features: The sliding frame rotating shaft (23) and the sliding frame fixing module (26) are connected via a sliding frame spring (25); one end of the sliding frame connecting rod (24) is fixedly connected to the sliding frame fixing module (26); the outside of the sliding frame connecting rod (24) is slidably connected to the sliding frame rotating shaft (23); and the other end of the sliding frame connecting rod (24) passes through the sliding frame rotating shaft (23); The sliding frame fixing module (26) is rotationally connected to the sliding frame connecting plate (22) via the sliding frame rotating shaft (23), and the sliding frame fixing module (26) is slidingly connected to the sliding frame rotating shaft (23) via the sliding frame connecting rod (24).

4. A recreational vehicle axle welding device according to claim 3, Features: The interior of the threaded connection block (27) is threadedly connected to the exterior of the moving screw rod (10), and when the moving shaft (9) drives the moving screw rod (10) to rotate, the sliding frame base (21) can be driven to rotate through the threaded connection block (27).

5. A recreational vehicle axle welding device according to claim 1, Features: The rotating fixed frame (5) comprises a rotating frame base (51), wherein the rotating frame base (51) is fixedly mounted on the top of the device body (1), a rotating frame connecting plate (52) is fixedly mounted on the top of the rotating frame base (51), a rotating frame rotating shaft (53) is rotatably mounted inside the rotating frame connecting plate (52), a transmission connecting rod (54) is slidably mounted inside the rotating frame rotating shaft (53), one end of the transmission connecting rod (54) is fixedly connected to a rotating frame fixing module (56), the other end of the transmission connecting rod (54) is fixedly connected to a rotating frame clamping block (57), and a rotating frame spring (55) is fixedly mounted on one side of the rotating frame rotating shaft (53).

6. A recreational vehicle axle welding device according to claim 5, Features: One side of the rotating frame fixing module (56) is connected to the rotating frame rotating shaft (53) via a rotating frame spring (55), and one side of the rotating frame spring (55) is fixedly connected to the rotating frame clamping block (57) via a transmission connecting rod (54); The rotating frame fixing module (56) is slidably connected to the rotating frame shaft (53) via a transmission connecting rod (54), and the rotating frame fixing module (56) is rotationally connected to the rotating frame connecting plate (52) via the rotating frame shaft (53).

7. A recreational vehicle axle welding device according to claim 6, Features: The structure of the rotating frame fixing module (56) is the same as that of the sliding frame fixing module (26); a baffle is provided at the bottom of the rotating frame fixing module (56); a slide groove inside the rotating frame fixing module (56) fits with the mounting blocks at both ends of the axle; and a clamping groove is provided inside the rotating frame fixing module (56) to clamp with the mounting blocks at both ends of the axle.

8. A recreational vehicle axle welding device according to claim 1, Features: The transmission mechanism (7) comprises a roller mounting shaft (71), a rotating shaft roller (74), a reverse ratchet (76) and a forward ratchet (78); the roller mounting shaft (71) is rotatably mounted on the driving end of the driving motor (6); the rotating shaft roller (74) is fixedly mounted on the outside of the moving rotating shaft (9); the reverse ratchet (76) and the forward ratchet (78) are slidably mounted on the outside of the driving end of the driving motor (6); one side of the roller mounting shaft (71) is fixedly connected to a motor roller (72); the motor roller (72) is movable on the outside of the motor roller (72) A transmission belt (73) is provided, a roller block (75) is fixedly installed inside the motor roller (72), a reverse block (77) is fixedly installed outside the reverse ratchet (76), a forward block (79) is fixedly installed outside the forward ratchet (78), a ratchet connecting sleeve (711) is fixedly connected to one side of the forward ratchet (78), a ratchet spring (710) is fixedly installed inside the ratchet connecting sleeve (711), and a sleeve connecting block (712) is fixedly installed outside the ratchet connecting sleeve (711).

9. A recreational vehicle axle welding device according to claim 8, Features: The motor roller (72) is rotatably mounted on the outside of the driving end of the driving motor (6) via a roller mounting shaft (71); the outside of the motor roller (72) is transmission-connected to the rotating shaft roller (74) via a transmission belt (73); the inside of the motor roller (72) is clamped with a reverse clamping block (77) on the outside of the reverse ratchet (76) via a roller clamping block (75); and the inside of the motor roller (72) is clamped with a forward clamping block (79) on the outside of the forward ratchet (78) via a roller clamping block (75); The front and rear ends of the roller clamping block (75), the reverse clamping block (77) and the forward clamping block (79) are all conical structures.

10. A recreational vehicle axle welding device according to claim 9, Features: The reverse ratchet (76) and the inner ring are fixedly connected to the inner ring of the forward ratchet (78); the outer rings of the reverse ratchet (76) and the forward ratchet (78) are independent of each other; and the ratchet connecting sleeve (711) is fixedly connected to the inner ring of the forward ratchet (78); The ratchet connecting sleeve (711) is slidably mounted on the outside of the power end of the driving motor (6); the inside of the ratchet connecting sleeve (711) is fixedly connected to the power end of the driving motor (6) via a ratchet spring (710); and the outside of the ratchet connecting sleeve (711) can be engaged with a rotating frame block (57) on the transmission connecting rod (54) via a sleeve connecting block (712).

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