An adjustable axle welding device for easy alignment and splicing

Abstract

This invention discloses an adjustable axle welding device for convenient alignment and splicing, including a welding table, with welding boxes mounted on the diagonal corners of the top of the welding table via brackets. A splicing adjustment mechanism is located on the top of the welding table for clamping and adjusting the cylindrical axle product. This invention relates to the field of alignment welding technology. This adjustable axle welding device for convenient alignment and splicing uses pneumatic components to drive the synchronous movement of a push plate and an L-shaped rod, achieving relative movement of the clamping blocks to limit the vertical position of the product, and simultaneously achieving relative movement of the clamping plates to limit the front and rear lateral positions of the product. Therefore, during the clamping and positioning operation before welding, it not only ensures the stability of the clamping but also achieves center alignment of the product, enabling more precise alignment welding operations and improving the quality of subsequent welding.

Description

Technical Field

[0001] This invention relates to the field of alignment welding technology, specifically to an adjustable axle welding device that facilitates alignment and splicing. Background Technology

[0002] In automobile manufacturing, the axle, as a critical transmission component, directly affects the vehicle's driving performance and safety through its welding quality. Traditional axle welding processes typically employ fixed tooling fixtures for positioning and welding.

[0003] The reference patent title is: An Adjustable Welding Fixing Device for Vehicles (Patent Publication No.: CN207699108U, Patent Publication Date: 2018-08-07), which includes a fixed base plate and a support plate. The upper surface of the fixed base plate has a first inner groove, and the inner bottom wall of the first inner groove has a circular hole. The inner bottom wall of the circular hole is fixedly connected to a rotating shaft through a bearing. One end of the rotating shaft is fixedly connected to a rotating table, and the upper surface of the rotating table is fixedly connected to a fixing plate. During use, by rotating a screw, one end of the first connecting plate, the second connecting plate, the third connecting plate, and the fourth connecting plate can be driven to converge towards the middle, lifting the support plate upward. The support plate is used to lift the entire vehicle axle, making it convenient for workers to weld the vehicle axle. This effectively solves the problem that ordinary vehicle axle welding fixing devices cannot lift the entire vehicle axle during use.

[0004] Based on the description in the above documents, in the process of aligning and splicing the columnar products before welding existing axles, the bidirectional clamping operation can easily cause the center positions of the relative products to be misaligned, resulting in deviations during welding. Furthermore, for products with fracture interfaces, misalignment of the interface texture can also create large gaps, affecting the quality of the welded product. Therefore, the present invention provides an adjustable axle welding device that facilitates alignment and splicing. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an adjustable axle welding device that facilitates alignment and splicing. This device solves the problem that, during the alignment and splicing process of columnar axle products before welding, the bidirectional clamping operation can easily cause misalignment of the center positions between relative products, resulting in deviations during welding. Furthermore, for products with fractured interfaces, misalignment of the interface texture can also create large gaps, affecting the quality of the welded product.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an adjustable axle welding device for convenient alignment and splicing, comprising a welding table, wherein a welding box is mounted on a bracket at a diagonal point on the top of the welding table, and a splicing adjustment mechanism is provided on the top of the welding table for clamping and adjusting the columnar axle product, wherein the splicing adjustment mechanism includes:

[0007] The vertical adjustment unit is symmetrically arranged on the top of the welding table to realize the vertical position adjustment and clamping of the product. It includes an open shell, which is installed on the top of the welding table by a fixing frame. The open shell has symmetrical clamping blocks inside, and inclined blocks are installed on the opposite side of the clamping blocks. The open shell has an inclined groove that is adapted to slide with the inclined blocks. The sliding of the inclined blocks in the inclined groove realizes the synchronous movement of the clamping blocks to perform clamping or opening operations. The movement of the inclined blocks is achieved by a pneumatic component.

[0008] The lateral adjustment section is located on the opposite side of the vertical adjustment section and is mounted on the fixed frame. It is driven by pneumatic components to adjust the position of the product in the front and rear directions and to center and clamp it.

[0009] The rotation adjustment unit, located on the opposite side of the lateral adjustment unit, is positioned on top of the welding station and is used to achieve rotational control of the product for alignment before welding.

[0010] Preferably, the pneumatic component includes:

[0011] A cylinder is connected and fixed to the rear side of the open outer shell. A piston rod is slidably connected inside the cylinder and extends into the interior of the open outer shell.

[0012] The push plate moves within the inner cavity of the open outer shell, while one end of the piston rod is fixed to one side of the push plate. When the push plate moves, it relies on the sliding component to drive two inclined blocks to move synchronously, enabling the inclined blocks to move relative to or away from each other on the push plate.

[0013] Preferably, the sliding member includes two convex sliders, which are symmetrically installed on the side of the push plate near the inclined block. An extension block is installed on the side of the inclined block near the push plate, and the extension block has a concave groove adapted to slide with the convex sliders. The convex sliders do not detach from the concave groove.

[0014] Preferably, the lateral adjustment part includes:

[0015] The adjustment box is fixedly installed on the top of the mounting frame;

[0016] The clamping plate is provided with a pair and is located on the top of the regulating box for relative or opposite movement in the front and back directions. The bottom of the clamping plate is equipped with a moving block that extends through into the interior of the regulating box. The part of the regulating box that is penetrated is a through groove that limits the moving block to horizontal movement in the front and back directions. The bottom sides of the two moving blocks can move relative or opposite to each other through a linkage component. The surface of the moving block located on the rear side is fixed to the surface of the piston rod through a connector.

[0017] Preferably, the linkage assembly includes multiple first rotating rods and second rotating rods. The extension end of the first rotating rod at the first position rotates with one end of the second rotating rod at the second position via a rotating pin, and the extension end of the second rotating rod at the first position rotates with one end of the first rotating rod at the second position via a rotating pin. One end of the first rotating rod at the first position and one end of the second rotating rod at the first position intersect at a rotation point, which is located directly below the center point of the bottom of the moving block. A fixed rod is rotatably installed at the rotation point, and the top end of the fixed rod is fixed to the center point of the bottom of the moving block. A center rod is rotatably installed at the center point of the first rotating rod and the second rotating rod located above the center of the adjustment box, and the bottom end of the center rod is fixed to the center of the inner cavity of the adjustment box.

[0018] Preferably, the connector includes a push rod mounted on the surface of the rear movable block, the extended end of the push rod passing through the adjustment box and extending to the outside of the adjustment box, and an L-shaped rod fixed to the surface of the push rod, the L-shaped rod extending into the interior of the open housing and connecting and fixing to the surface of the piston rod.

[0019] Preferably, the rotation adjustment part includes:

[0020] The support plate is connected by a movable component and moves on top of the welding table, and a support ring is fixedly installed on the top of the support plate;

[0021] The three-jaw clamp has its surface rotatably connected to the inner side of the support ring, and its rotation is achieved through a rotating component. The clamp is controlled by a retractable air supply tube, and its rotation is used to align the interface texture of the product.

[0022] Preferably, the rotating component includes:

[0023] The external gear is fixedly installed on the outside of the three-jaw clamp and located in the inner cavity opened inside the support ring;

[0024] The driving component is located on one side of the support plate and drives the driving gear to rotate. The teeth of the driving gear pass through the support plate and the support ring in sequence and extend into the interior of the support ring. The surface of the driving gear meshes with the surface of the external gear.

[0025] Preferably, the driving component includes a drive motor, which is fixedly mounted on the side of the support plate. One end of the output shaft of the drive motor is fixedly mounted with a drive shaft via a coupling. One end of the drive shaft extends through the inner wall of the support plate and is fixed at the center of the surface of the drive gear.

[0026] This invention provides an adjustable axle welding device for convenient alignment and splicing. Compared with the prior art, it has the following advantages:

[0027] 1. This adjustable axle welding device, which facilitates alignment and splicing, uses pneumatic components to drive the synchronous movement of the push plate and L-shaped rod. This enables the relative movement of the clamping blocks to limit the vertical position of the product, and simultaneously enables the relative movement of the clamping plates to limit the front and rear positions of the product. In this way, during the clamping and positioning operation before welding, not only can the stability of the clamping be guaranteed, but the center of the product can also be aligned, so as to achieve more precise alignment welding operation and improve the quality of subsequent welding.

[0028] 2. This adjustable axle welding device, which facilitates alignment and splicing, uses pneumatic components to drive the vertical and horizontal adjustment parts, which in turn move the clamping block and clamping plate synchronously. This allows for synchronous control of both parts through a single drive, maintaining a fixed center position, improving the efficiency of splicing and positioning before welding, saving energy consumption, ensuring that the product does not shift during docking, and preventing the product from tilting due to the support of the rotating adjustment part, thus facilitating subsequent welding.

[0029] 3. This adjustable axle welding device, which facilitates alignment and splicing, is equipped with a rotary adjustment unit. It utilizes existing three-jaw clamps to assist in clamping the product, ensuring that the product is horizontally aligned. The rotary component enables synchronous rotation and adjustment of the three-jaw clamps and the product, adapting to texture deviations at the product interface to generate angle adjustment commands. This ensures a tight fit at the interface, reducing gaps at the connection. This not only reduces welding time and material usage but also improves the welding quality of the product, enabling more precise welding operations after alignment and splicing. Attached Figure Description

[0030] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0031] Figure 2 This is a three-dimensional structural diagram of the top of the welding station of the present invention;

[0032] Figure 3 This is a three-dimensional structural diagram of the splicing and adjustment mechanism on one side of the present invention;

[0033] Figure 4 This is a three-dimensional structural diagram of the rotating component of the present invention;

[0034] Figure 5 This is a three-dimensional structural diagram of the vertical adjustment part and the horizontal adjustment part of the present invention;

[0035] Figure 6 This is a three-dimensional structural diagram of the lateral adjustment part of the present invention;

[0036] Figure 7 This is a three-dimensional structural diagram of the regulating box of the present invention;

[0037] Figure 8 This is a three-dimensional structural diagram of the vertical adjustment part of the present invention;

[0038] Figure 9 This is a three-dimensional structural diagram of the internal structure of the opening shell of the present invention;

[0039] Figure 10 This is a three-dimensional structural exploded view of the sliding component of the present invention.

[0040] In the diagram: 1-Welding table, 2-Welding box, 3-Vertical adjustment section, 31-Open outer shell, 32-Fixing frame, 33-Clamping block, 34-Angled block, 35-Angled groove, 36-Pneumatic component, 361-Cylinder, 362-Piston rod, 363-Push plate, 364-Sliding component, 3641-Convex slide bar, 3642-Extension block, 3643-Concave groove, 4-Horizontal adjustment section, 41-Adjustment box, 42-Clamping plate. 43-Moving block, 5-Rotation adjustment part, 51-Support plate, 52-Support ring, 53-Three-jaw clamp, 54-Gas pipe, 6-Linkage assembly, 61-First rotating rod, 62-Second rotating rod, 63-Fixed rod, 64-Center rod, 7-Connector, 71-Push rod, 72-L-shaped rod, 8-Rotation assembly, 81-External gear, 82-Drive component, 821-Drive motor, 822-Drive shaft, 83-Drive gear. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] Please see Figures 1-10 This invention provides a technical solution: an adjustable axle welding device for convenient alignment and splicing, including a welding table 1, and a welding box 2 is mounted on the diagonal corner of the top of the welding table 1 via a bracket. A splicing adjustment mechanism is provided on the top of the welding table 1 for clamping and adjusting the columnar axle product. The splicing adjustment mechanism includes:

[0043] The vertical adjustment unit 3 is symmetrically arranged on the top of the welding table 1 to realize the vertical position adjustment and clamping of the product. It includes an open shell 31, which is installed on the top of the welding table 1 by a fixing frame 32. The open shell 31 is provided with symmetrical clamping blocks 33 inside, and inclined blocks 34 are installed on the opposite side of the clamping blocks 33. The open shell 31 is provided with an inclined groove 35 that is adapted to slide with the inclined blocks 34. The sliding of the inclined blocks 34 in the inclined groove 35 realizes the clamping blocks 33 to move synchronously while performing clamping or opening operations. The movement of the inclined blocks 34 is realized by the pneumatic component 36.

[0044] The lateral adjustment part 4 is located on the opposite side of the vertical adjustment part 3 and is mounted on the fixed frame 32. The product's position adjustment and centering clamping in the front and rear directions are achieved by the pneumatic component 36.

[0045] The rotation adjustment unit 5 is located on the top of the welding table 1 on the side of the lateral adjustment unit 4 that is far away from each other, and is used to realize the rotation adjustment of the product for alignment operation before welding.

[0046] The pneumatic component 36 drives the push plate 363 and the L-shaped rod 72 to move synchronously, thereby achieving relative movement of the clamping block 33 to limit the vertical position of the product. Simultaneously, the clamping plate 42 moves relative to the product to limit its front and rear positions. In this way, during the clamping and positioning operation before welding, not only can the stability of the clamping be guaranteed, but the center of the product can also be aligned to achieve a more precise alignment welding operation and improve the quality of subsequent welding.

[0047] The welding box 2 is equipped with an existing welding device inside and below. The existing laser emitter is moved by the existing displacement structure that can move horizontally and vertically. That is, the existing operation structure for positioning welding can be used for the current equipment to position the welding point of the product for welding. The extension of the inclined block 34 slides with the inner wall of the inclined groove 35, and ensures that the inclined block 34 does not detach from the inclined groove 35.

[0048] Please see Figure 6 and Figures 8-10 In this embodiment of the invention, the pneumatic component 36 includes:

[0049] Cylinder 361 is connected and fixed to the rear side of the open housing 31. Piston rod 362 is slidably connected inside cylinder 361 and extends into the interior of open housing 31.

[0050] The push plate 363 moves within the cavity of the open housing 31, while one end of the piston rod 362 is fixed to one side of the push plate 363. When the push plate 363 moves, it relies on the sliding member 364 to drive the two inclined blocks 34 to move synchronously, and realizes that the inclined blocks 34 can move relative to each other or in opposite directions on the push plate 363.

[0051] Please see Figure 10 In this embodiment of the invention, the sliding member 364 includes two convex sliding strips 3641, which are symmetrically installed on the side of the push plate 363 near the inclined block 34. An extension block 3642 is installed on the side of the inclined block 34 near the push plate 363. The extension block 3642 is provided with a concave groove 3643 that is adapted to slide with the convex sliding strips 3641, and the convex sliding strips 3641 do not disengage from the concave groove 3643.

[0052] Among them, cylinder 361 is connected to the external air circuit, and cylinder 361 has a self-locking function to complete the position positioning after movement.

[0053] The vertical adjustment unit 3 and the horizontal adjustment unit 4 are driven by the pneumatic component 36 to move the clamping block 33 and the clamping plate 42 synchronously. This allows for synchronous control of both components through a single drive, maintaining the center position, improving the efficiency of splicing and positioning before welding, saving energy consumption, ensuring that the product does not shift during docking, and preventing the product from tilting due to the support of the rotary adjustment unit 5, thus facilitating the welding of subsequent products.

[0054] Please see Figures 6-7 In this embodiment of the invention, the lateral adjustment part 4 includes:

[0055] The regulating box 41 is fixedly installed on the top of the fixing frame 32;

[0056] The clamping plate 42 is provided with a pair and is located on the top of the regulating box 41 for relative or opposite movement in the front and back directions. The bottom of the clamping plate 42 is equipped with a moving block 43, which extends through into the interior of the regulating box 41. The through part of the regulating box 41 is a through groove that limits the moving block 43 to horizontal movement in the front and back directions. The two moving blocks 43 are moved relative or opposite to each other through the linkage assembly 6. The surface of the moving block 43 located on the rear side is fixed to the surface of the piston rod 362 through the connector 7.

[0057] Please see Figure 7In this embodiment of the invention, the linkage component 6 includes multiple first rotating rods 61 and second rotating rods 62. The extension end of the first rotating rod 61 and one end of the second rotating rod 62 are rotated by a rotating pin. The extension end of the second rotating rod 62 and one end of the first rotating rod 61 are rotated by a rotating pin. The first rotating rod 61 and the second rotating rod 62 intersect at a rotation point. The rotation point is located directly below the center point of the bottom of the moving block 43. A fixed rod 63 is rotatably installed at the rotation point. The top end of the fixed rod 63 is fixed to the center point of the bottom of the moving block 43. A center rod 64 is rotatably installed at the center point of the first rotating rod 61 and the second rotating rod 62 located above the center of the regulating box 41. The bottom end of the center rod 64 is fixed to the center of the inner cavity of the regulating box 41.

[0058] Please see Figure 6 In this embodiment of the invention, the connector 7 includes a push rod 71 mounted on the surface of the rear moving block 43. The extended end of the push rod 71 passes through the adjustment box 41 and extends to the outside of the adjustment box 41. An L-shaped rod 72 is fixed to the surface of the push rod 71, and the L-shaped rod 72 extends into the interior of the opening housing 31 and is connected and fixed to the surface of the piston rod 362.

[0059] Please see Figures 3-4 In this embodiment of the invention, the rotation adjustment unit 5 includes:

[0060] The support plate 51 is connected to and moves on the top of the welding table 1 via a movable component, and a support ring 52 is fixedly installed on the top of the support plate 51.

[0061] The three-jaw clamp 53 has its surface rotatably connected to the inner side of the support ring 52, and the rotation of the three-jaw clamp 53 is achieved by the rotating component 8. The three-jaw clamp 53 is controlled by the retractable air supply pipe 54 to perform the clamping operation, and the rotation of the three-jaw clamp 53 is used to align the interface texture of the product.

[0062] By incorporating a rotation adjustment unit 5, the existing three-jaw clamp 53 is used to assist in clamping the product, ensuring that the product is horizontally aligned. The rotating component 8 enables synchronous rotation adjustment of the three-jaw clamp 53 and the product, adapting to texture deviations at the product interface to generate angle adjustment commands, achieving proper fit at the interface, and reducing gaps at the connection. This not only reduces welding time and material usage but also improves the welding quality of the product, enabling more precise welding operations after alignment and splicing.

[0063] The movable component moves relative to or away from the support plate 51 via an existing bidirectional threaded rod. The bidirectional threaded rod rotates via an existing motor, which in turn moves and adjusts the connected support plate 51. The three-jaw clamp 53 uses a wedge-shaped cam structure design. It drives the piston assembly and inclined mold displacement through the gas pressure in the sealed cavity, thereby controlling the slider to achieve synchronous opening and closing of the three jaws. The structure includes three evenly distributed jaws, an air pipe, a linkage mechanism, and modular mounting components. It supports dual-acting air-controlled clamping / releasing actions, which is an existing mature technology and will not be described in detail. The air supply pipe 54 is the air pipe, which allows the three-jaw clamp 53 to be adjusted accordingly as it moves.

[0064] Please see Figure 4 In this embodiment of the invention, the rotating component 8 includes:

[0065] The external gear 81 is fixedly installed on the outside of the three-jaw clamp 53 and located in the inner cavity opened inside the support ring 52;

[0066] The driving component 82 is disposed on one side of the support plate 51 and drives the driving gear 83 to rotate. The teeth of the driving gear 83 pass through the support plate 51 and the support ring 52 in sequence and extend into the interior of the support ring 52. The surface of the driving gear 83 meshes with the surface of the external gear 81.

[0067] Please see Figure 4 In this embodiment of the invention, the driving component 82 includes a driving motor 821, which is fixedly installed on the side of the support plate 51. One end of the output shaft of the driving motor 821 is fixedly installed with a driving shaft 822 through a coupling. One end of the driving shaft 822 extends through to the inner wall of the support plate 51, and one end of the driving shaft 822 is fixed at the center of the surface of the driving gear 83.

[0068] The drive motor 821 is a three-phase asynchronous motor. The drive motor 821 is electrically connected to an external power supply, and the drive motor 821 has a locking function to keep the drive shaft locked after the machine stops.

[0069] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0070] During operation, the columnar axle products to be welded are extended sequentially from the center of the three-jaw chuck 53 to between the clamping blocks 33. Then, the cylinder 361 is activated, which drives the piston rod 362 to move. The piston rod 362 drives the push plate 363 and the L-shaped rod 72 to move synchronously.

[0071] When the push plate 363 moves, it drives the inclined block 34 to move in the inclined groove 35 of the inner cavity of the open outer shell 31. The extension block 3642 connected to the inclined block 34 and the convex slide bar 3641 connected to the push plate 363 achieve sliding operation, so that the inclined block 34 can move forward while being pushed by the push plate 363, and also move vertically. The movement of the inclined block 34 drives the fixed opposite clamping block 33 to operate synchronously, thus completing the vertical position limit of the product.

[0072] Simultaneously, when the L-shaped rod 72 moves, it drives the push rod 71 to move synchronously. The push rod 71 drives the moving block 43 located on the rear side to move horizontally. At this time, the movement of the moving block 43 is coordinated by the rotation between multiple first rotating rods 61 and second rotating rods 62 to achieve the contraction towards the position of the central rod 64. Then, the moving block 43 in the front and rear directions performs relative movement operations, and drives the clamping plate 42 at the top to move relative to each other, thus completing the position limit of the product in the front and rear directions.

[0073] Furthermore, the vertical position limit of the product, combined with the position limit of the front and rear sides of the product, keeps the center point of the product in place. At this time, the three-jaw clamp 53 is used to provide auxiliary support for the product and achieve contact with the product interface to observe whether there is any deviation in the texture at the product interface.

[0074] If there is a deviation, the product is clamped by the three-jaw chuck 53, and the drive motor 821 is started to drive the drive shaft 822 to rotate. The drive shaft 822 drives the drive gear 83 to rotate. The meshing transmission between the drive gear 83 and the external gear 81 realizes the synchronous rotation and adjustment of the entire three-jaw chuck 53 and the product. The adjustment angle provided by the system is controlled. After alignment is completed, the product is moved and aligned. At the same time, the clamping limit is used by the vertical adjustment part 3 and the horizontal adjustment part 4. The welding process is carried out by adjusting the position of the laser emitter at the welding processing point.

[0075] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0076] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these 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. An adjustable axle welding device which is convenient for aligning and splicing, comprising a welding table (1), and a welding box (2) is installed on the top of the welding table (1) through a support at the diagonal, characterized in that: The top of the welding table (1) is provided with a splicing adjusting mechanism for realizing the clamping adjusting operation of the columnar vehicle product, and the splicing adjusting mechanism comprises: A vertical adjusting part (3) is symmetrically arranged at the top of the welding table (1) for realizing the position adjusting and clamping of the product in the vertical direction, comprising an open shell (31) which is installed at the top of the welding table (1) through a fixed frame (32), and the inside of the open shell (31) is provided with symmetrically arranged clamping blocks (33), and the opposite sides of the clamping blocks (33) are provided with inclined blocks (34), and the inside of the open shell (31) is provided with inclined grooves (35) which are adapted to slide with the inclined blocks (34), and the sliding of the inclined blocks (34) in the inclined grooves (35) realizes the synchronous movement of the clamping blocks (33) while clamping or opening, and the movement of the inclined blocks (34) is realized by the pushing operation of the pneumatic element (36); A horizontal adjusting part (4) is located at the sides away from each other of the vertical adjusting part (3) and is installed on the fixed frame (32), and realizes the position adjusting and center clamping of the product in the front-rear direction through the driving of the pneumatic element (36); A rotating adjusting part (5) is arranged at the top of the welding table (1) at the sides away from each other of the horizontal adjusting part (4), for realizing the rotating adjusting of the product, so that the product can be aligned before welding; The pneumatic element (36) comprises: A cylinder (361) is connected to the rear side of the open shell (31), the inside of the cylinder (361) is slidably connected with a piston rod (362), and the piston rod (362) extends into the inside of the open shell (31); A pushing plate (363) is located in the inner cavity of the open shell (31) for movement, one end of the piston rod (362) is fixed to one side of the pushing plate (363), and when the pushing plate (363) moves, the two inclined blocks (34) are synchronously moved by the sliding element (364), and the relative or opposite movement of the inclined blocks (34) on the pushing plate (363) is realized; The horizontal adjusting part (4) comprises: An adjusting box (41) is fixedly installed at the top of the fixed frame (32); A clamping plate (42) is arranged in a pair and located at the top of the adjusting box (41) for relative or opposite movement in the front-rear direction, the bottom of the clamping plate (42) is provided with a moving block (43) which extends through the inside of the adjusting box (41), and the penetrated part of the adjusting box (41) is a through groove which is limited to the horizontal movement of the moving block (43) in the front-rear direction, and the relative or opposite movement between the opposite sides of the two moving blocks (43) is realized by the linkage assembly (6), and the surface of the moving block (43) at the rear side is fixed to the surface of the piston rod (362) through the connecting element (7). The linkage assembly (6) comprises a plurality of first rotating rods (61) and second rotating rods (62), the extension end of the first rotating rod (61) is rotatably connected to one end of the second rotating rod (62) through a rotating pin, the extension end of the second rotating rod (62) is rotatably connected to one end of the first rotating rod (61) through a rotating pin, one end of the first rotating rod (61) and the second rotating rod (62) are crossed at the rotating point, the rotating point is located directly below the center point of the bottom of the moving block (43), and a fixed rod (63) is rotatably arranged at the rotating point, the top end of the fixed rod (63) is fixed to the center point of the bottom of the moving block (43), and the center rods (64) are rotatably arranged at the center point positions of the first rotating rods (61) and the second rotating rods (62) above the center position of the adjusting box (41), and the bottom ends of the center rods (64) are fixed to the center position of the inner cavity of the adjusting box (41).

2. The adjustable axle welding apparatus that facilitates alignment splicing of claim 1, wherein: The sliding piece (364) comprises two convex sliding strips (3641) symmetrically arranged on one side of the push plate (363) close to the inclined block (34), the side of the inclined block (34) close to the push plate (363) is provided with an extension block (3642), the extension block (3642) is provided with a concave groove (3643) adapted to sliding of the convex sliding strip (3641), and the convex sliding strip (3641) does not disengage from the concave groove (3643).

3. The adjustable axle welding apparatus that facilitates alignment splicing of claim 1, wherein: The connecting piece (7) comprises a push rod (71) arranged on the surface of the rear moving block (43), the extension end of the push rod (71) penetrates through the adjusting box (41) and extends to the outside of the adjusting box (41), the surface of the push rod (71) is fixedly provided with an L-shaped rod (72), and the L-shaped rod (72) extends to the inside of the open shell (31) and is fixedly connected to the surface of the piston rod (362).

4. The adjustable axle welding apparatus that facilitates alignment splicing of claim 1, wherein: The rotating adjusting part (5) comprises: a support plate (51) movably arranged on the top of the welding table (1) through the moving piece, and a support ring (52) fixedly arranged on the top of the support plate (51); a three-jaw clamp (53) rotatably connected to the inner side of the support ring (52), and the three-jaw clamp (53) is rotatably arranged on the outer side of the support ring (52) through the rotating assembly (8), the three-jaw clamp (53) is clamped through the telescopic gas pipe (54), and the rotation of the three-jaw clamp (53) is used for aligning the interface texture of the product.

5. An adjustable axle welding device for easy alignment splicing according to claim 4, characterized in that: The rotating assembly (8) comprises: an external gear (81) fixedly arranged on the outer side of the three-jaw clamp (53) and located in the inner cavity of the support ring (52); a driving piece (82) arranged on one side of the support plate (51) and used for driving a driving gear (83) to rotate, the gear teeth of the driving gear (83) penetrate through the support plate (51) and the support ring (52) in sequence and extend to the inside of the support ring (52), and the surface of the driving gear (83) is in mesh with the surface of the external gear (81).

6. An adjustable axle welding apparatus for easy alignment splicing as claimed in claim 5 wherein: The driving member (82) comprises a driving motor (821), the driving motor (821) is fixedly installed on the side of the support plate (51), one end of the output shaft of the driving motor (821) is fixedly installed with a driving shaft (822) through a shaft coupling, and one end of the driving shaft (822) extends through to the inner wall of the support plate (51), and one end of the driving shaft (822) is fixed to the center of the surface of the driving gear (83).

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