A frame rapid butt welding assembly equipment

Abstract

The application is suitable for the field of welding equipment, and provides a frame rapid butt welding assembly equipment, which comprises a base, a multi-axis manipulator, an assembly welding table, inverted U-shaped rods and adjustable supports. The base is fixed with a bottom support column and the multi-axis manipulator, and the end of the multi-axis manipulator is provided with a welding gun. The assembly welding table is rotatably installed on the upper end of the bottom support column, and two adjusting seats controlled by driving assemblies are slidably arranged in the assembly welding table. Inverted U-shaped rods are arranged on the two sides of the assembly welding table, and the two sides of the inverted U-shaped rods are rotatably connected with the adjusting seats through adjusting cylinders, two clamping discs are slidably arranged in the middle section of the inverted U-shaped rods, clamping push-pull cylinders, one-way rotating rings and stop rods are arranged on the clamping discs, and the clamping discs are used for positioning and clamping workpieces. The top of the assembly welding table is provided with a plug-in hole, and the adjustable supports are detachably installed on the plug-in hole, so that the height and angle of the workpiece can be assisted and supported. Through the multi-directional adjusting and clamping structure design, stable support and clamping of different types of frame workpieces to be welded are realized, and the welding stability and assembly efficiency are significantly improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of welding equipment, and particularly relates to a frame rapid butt welding assembly equipment. BACKGROUND

[0002] In modern manufacturing, especially in the production and manufacturing process of electric vehicles, the welding assembly of the frame is a crucial link in the production process. The traditional frame welding method often relies on manual operation or semi-automatic equipment, which not only requires high skills of workers, but also takes a lot of time and effort to adjust the equipment and process parameters when facing different models and sizes of frames, which is difficult to meet the efficient production demand.

[0003] With the development of industrial automation technology, robot welding systems have gradually become the key solution to improve welding quality and efficiency. However, the existing welding robot systems are mostly general-purpose designs, and have limited adaptability to complex structures such as frames and other specific products, especially in terms of support and clamping, which cannot flexibly cope with various specifications of the workpiece to be welded. Therefore, developing a welding assembly equipment that can quickly butt joint and stably support different types of frames has become an important direction to improve welding efficiency and reduce costs.

[0004] The existing welding auxiliary equipment in the current market can solve the above problems to some extent, but generally has the following shortcomings: 1) it is difficult to quickly adjust to adapt to different shapes and sizes of frames; 2) quality problems may occur due to unstable support during welding; 3) a lot of time is spent on equipment adjustment; 4) complex customized solutions increase the investment cost of enterprises.

[0005] Therefore, in view of the above status, it is urgent to develop a frame rapid butt welding assembly equipment to overcome the deficiencies in current practical applications. SUMMARY

[0006] The purpose of the present application is to provide a frame rapid butt welding assembly equipment to solve the problems mentioned in the background.

[0007] The present application is implemented as follows: a frame rapid butt welding assembly equipment, comprising:

[0008] A base and a bottom support fixed thereon, one side of the base is fixed with a multi-axis manipulator, and a welding gun is installed at the end of the multi-axis manipulator;

[0009] A welding platform is rotatably adjusted and installed on the upper end of the bottom support, two adjusting seats are slidably arranged on the inner side, and a driving assembly is installed to drive the two adjusting seats to move closer to or away from each other;

[0010] The two sides of the inverted U-shaped rod are each provided with an assembly welding platform, the two side branch sections are movably connected with the adjusting cylinders, and the two adjusting cylinders are movably connected with the adjusting seat through the first supporting shafts.

[0011] The adjustable support is detachably installed on the insertion holes on the top of the assembly welding platform, and is used for assisting the support of the height and angle of the welding piece.

[0012] Further, the bottom of the assembly welding platform is fixed with a sleeve ring, the upper end of the bottom support is movably connected with the sleeve ring, and the sleeve ring is provided with third fastening bolts for locking and fixing.

[0013] Further, the inner side of the assembly welding platform is provided with an adjusting cavity, the upper and lower sides of the adjusting cavity are fixed with guide edges, and the adjusting seat is movably connected with the guide edges; the driving assembly comprises a motor and a reversible screw rod, the reversible screw rod is vertically installed in the middle of the assembly welding platform, the adjusting seat is threadedly connected with the reversible screw rod, the motor is fixed on the assembly welding platform and is in transmission connection with one end of the reversible screw rod, and the motor drives the reversible screw rod to rotate, and the two adjusting seats are synchronously close or away from each other.

[0014] Further, the adjusting cylinder is provided with second fastening bolts for locking the two side branch sections of the inverted U-shaped rod, one end of the first supporting shaft is fixedly connected with the adjusting cylinder, the other end is movably connected with the adjusting seat, and the adjusting seat is provided with first fastening bolts for locking the first supporting shaft.

[0015] Further, the outer side of the clamping disc is provided with an annular groove, the one-way rotating ring is movably connected with the annular groove, the one-way rotating ring is fixedly provided with a ratchet on the inner side, the bottom of the annular groove is provided with a pawl groove, the second supporting shaft is fixedly arranged in the pawl groove, the second supporting shaft is movably provided with a pawl matched with the ratchet, and the second supporting shaft is further provided with a torsion spring for elastically supporting the pawl.

[0016] Further, the one-way rotating ring on the left side of the assembly welding platform is counterclockwise one-way rotation, and the one-way rotating ring on the right side is clockwise one-way rotation.

[0017] Further, the adjustable support comprises a support seat provided with an arc-shaped groove at the top, a gear ring is fixed to the bottom of the support seat, a telescopic column is arranged on the inner side of the gear ring, the upper end of the telescopic column is movably connected with the support seat, an angle frame is fixed to the telescopic column, an L-shaped fixing rod matched with the gear ring is movably arranged on the angle frame, the L-shaped fixing rod is connected with the angle frame through a first elastic member, and the first elastic member is used for abutting the end of the L-shaped fixing rod with the gear ring.

[0018] Further technical solutions, the lower part of the telescopic column is slidably connected with the first sliding cavity of the upper part of the support cylinder, a second elastic member for elastically supporting the telescopic column is installed in the first sliding cavity, the upper part of the support cylinder is provided with a fourth fastening bolt for locking the telescopic column.

[0019] Further technical solutions, the lower part of the telescopic column is slidably connected with the first sliding cavity of the upper part of the support cylinder, a second elastic member for elastically supporting the telescopic column is installed in the first sliding cavity, the upper part of the support cylinder is provided with a fourth fastening bolt for locking the telescopic column.

[0020] Further technical solutions, the upper part of the plug-in hole is a cylindrical structure, and the lower part is a spherical structure, and the diameter of the spherical structure is greater than that of the cylindrical structure.

[0021] The vehicle frame rapid butt welding assembly equipment provided by the application has the following beneficial effects:

[0022] The position of the adjusting seat is adjusted by the driving assembly, and the inverted U-shaped rod can be adjusted in position relative to the adjusting cylinder and rotated relative to the adjusting seat, so that the middle section can support vehicle frames of different models after comprehensive adjustment, and the clamping disc is moved by the clamping and pushing cylinder to clamp the to-be-welded piece, thereby ensuring the stability thereof, and the one-way rotating one-way rotating ring is further supported by the setting of the blocking cylinder and the blocking rod, so that the to-be-welded piece of the vehicle frame can maintain the stability of welding. In addition, the plug-in hole is provided on the assembly welding table, and the detachable adjustable support is provided, so that a suitable number of adjustable supports can be selected according to the needs, and the to-be-welded piece is assisted and supported at a certain height and angle as needed, thereby further meeting the demand for welding stability and improving the efficiency of vehicle frame assembly welding.

[0023] In summary, the application realizes stable support and clamping of to-be-welded pieces of vehicle frames of different models through multi-directional adjustment and clamping structure design, and significantly improves the welding stability and assembly efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 The overall structure schematic view of the vehicle frame rapid butt welding assembly equipment provided by the embodiment of the application is shown in the figure.

[0025] Figure 2 The lower view angle structure schematic view of the vehicle frame rapid butt welding assembly equipment provided by the embodiment of the application is shown in the figure. Figure 1 The lower view angle structure schematic view of the vehicle frame rapid butt welding assembly equipment provided by the embodiment of the application is shown in the figure.

[0026] Figure 3 The overall structure schematic view of the vehicle frame rapid butt welding assembly equipment provided by the embodiment of the application is shown in the figure.

[0027] Figure 4 Fig. 2 is a schematic view of a partial cross-section of the I-I direction; Figure 3

[0028] Figure 5 Fig. 4 is a schematic view of an enlarged structure of the A portion in Fig. 2; Figure 4

[0029] Figure 6 Fig. 6 is a schematic view of a structure when the ratchet slides from the pawl; Figure 5

[0030] Figure 7 Fig. 8 is a schematic view of a structure of an adjustable support portion in a frame rapid butt welding assembly equipment provided by an embodiment of the present application;

[0031] Figure 8 Fig. 10 is a schematic view of a front cross-section structure of the main body; Figure 7

[0032] Figure 9 Fig. 14 is a schematic view of an enlarged structure of the B portion in Fig. 13; Figure 8

[0033] Figure 10 Fig. 16 is a schematic view of a structure of a plug-in hole in a frame rapid butt welding assembly equipment provided by an embodiment of the present application.

[0034] In the figure: 1-clamping push-pull cylinder, 2-cylinder fixing seat, 3-intermediate section, 4-stop cylinder, 5-stop rod, 6-clamping disc, 7-one-way rotating ring, 8-two side branch sections, 9-plug-in hole, 10-adjustable support, 11-welding gun, 12-multi-axis mechanical hand, 13-base, 14-motor, 15-bottom support column, 16-welding table, 17-guide rib, 18-first fastening bolt, 19-second fastening bolt, 20-adjusting cylinder, 21-first support shaft, 22-adjusting seat, 23-forward and reverse screw rod, 24-sleeve ring, 25-third fastening bolt, 26-annular groove, 27-ratchet, 28-pawl groove, 29-second support shaft, 30-pawl, 31-stand, 32-toothed ring, 33-angle frame, 34-L-shaped fixing rod, 35-first elastic member, 36-telescopic column, 37-fourth fastening bolt, 38-support cylinder, 39-movable opening, 40-unlocking handle, 41-arc-shaped plate, 42-cross support rod, 43-first sliding cavity, 44-second elastic member, 45-locking rod, 46-second sliding cavity, 47-transmission cavity, 48-third elastic member, 49-connecting rod, 50-protruding hole. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0036] ​​​​​The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0037] like Figures 1-3 As shown, an embodiment of the present invention provides a rapid vehicle frame welding assembly device, including a base 13 and a bottom support 15 fixed thereon. A multi-axis robot arm 12 is fixed to one side of the base 13. Preferably, the multi-axis robot arm 12 is a six-axis robot arm. A welding torch 11 is installed at the end of the multi-axis robot arm 12. The welding task can be completed by moving the welding torch 11 driven by the multi-axis robot arm 12. It also includes:

[0038] The assembly welding station 16 is rotatably and adjustablely mounted on the upper end of the bottom support column 15. Two adjustment seats 22 are slidably provided on the inner side of the assembly welding station 16. The assembly welding station 16 is also equipped with a drive assembly for driving the two adjustment seats 22 to move closer or further apart from each other.

[0039] An inverted U-shaped rod is provided on each side of the welding station 16. The two side branches 8 of the inverted U-shaped rod are movably connected to the adjusting cylinder 20. The two adjusting cylinders 20 are also rotatably connected to the two ends of the adjusting seat 22 through the first support shaft 21. Two clamping discs 6 are slidably provided on the middle section 3 of the inverted U-shaped rod. A clamping push-pull cylinder 1 is fixed on the side of the two clamping discs 6 that are far apart. The clamping push-pull cylinder 1 is also fixedly connected to the middle section 3. A one-way rotating ring 7 is rotatably installed on the clamping disc 6. A stop rod 5 is provided between the one-way rotating rings 7 of the two clamping discs 6 installed on the middle section 3. A stop cylinder 4 is slidably provided at both ends of the stop rod 5. The two stop cylinders 4 are fixedly connected to the two one-way rotating rings 7 respectively.

[0040] Adjustable support 10, the top of the welding station 16 is evenly provided with a number of insertion holes 9, and the adjustable support 10 is detachably installed on the insertion holes 9. The adjustable support 10 is used to provide auxiliary support for the workpiece to be welded at a certain height and angle.

[0041] In this embodiment of the invention, the position of the adjusting seat 22 is adjusted by the driving component, and the inverted U-shaped rod can be adjusted in position relative to the adjusting cylinder 20 and rotate relative to the adjusting seat 22. After comprehensive adjustment, the intermediate section 3 can support different models of frame parts to be welded. The clamping push-pull cylinder 1 drives the clamping plate 6 to move and clamp the parts to be welded, ensuring their stability. The one-way rotating ring 7, combined with the baffle cylinder 4 and the baffle rod 5, provides further transitional support, enabling the frame parts to be welded to maintain welding stability. In addition, through the opening of the insertion hole 9 on the welding station 16 and the detachable setting of the adjustable support 10, an appropriate number of adjustable supports 10 can be selected as needed to provide auxiliary support of a certain height and angle for the parts to be welded, further meeting the requirements for welding stability and improving the efficiency of frame assembly and welding.

[0042] In summary, the present application realizes stable support and clamping of different types of frame to-be-welded pieces by adjusting and clamping structure in multiple directions, and significantly improves the welding stability and assembly efficiency.

[0043] As shown in Figures 1-6 As a preferred embodiment of the present application, the bottom of the assembly welding table 16 is fixed with a collar 24, the upper end of the bottom support column 15 is rotationally connected with the collar 24, and a third fastening bolt 25 for locking the collar 24 is also installed on the collar 24, so as to facilitate the rotation adjustment and locking of the assembly welding table 16, i.e., changing the angle of the assembly welding table 16 relative to the multi-axis robot 12, to meet the flexible processing requirements.

[0044] The inside of the assembly welding table 16 is provided with an adjusting cavity extending through front and back, and guide ribs 17 are fixed on the inside of the adjusting cavity on the upper and lower sides. The adjusting seat 22 is slidingly connected with the guide ribs 17. The driving assembly includes a motor 14 and a forward and reverse screw rod 23, the forward and reverse screw rod 23 is perpendicularly rotationally installed in the middle of the assembly welding table 16, and the adjusting seat 22 is threadedly connected with the forward and reverse screw rod 23. The motor 14 is also fixed on the assembly welding table 16 and is drivingly connected with one end of the forward and reverse screw rod 23. When the motor 14 drives the forward and reverse screw rod 23 to rotate, the two adjusting seats 22 are synchronously close or away, so as to meet the reliable adjustment requirements, and the guide ribs 17 play a guiding and anti-twisting role.

[0045] The adjusting cylinder 20 is provided with a second fastening bolt 19 for locking and fixing the two side branch segments 8 of the inverted U-shaped rod. One end of the first support shaft 21 is fixedly connected with the adjusting cylinder 20, and the other end of the first support shaft 21 is rotationally connected with the adjusting seat 22. The adjusting seat 22 is provided with a first fastening bolt 18 for locking and fixing the first support shaft 21, so as to realize the position and rotation adjustment of the inverted U-shaped rod and meet the diversified support requirements.

[0046] The clamping push-pull cylinder 1 is parallel to the middle segment 3 of the inverted U-shaped rod, and the cylinder body of the clamping push-pull cylinder 1 is fixedly connected with the middle segment 3 of the inverted U-shaped rod through the cylinder fixing seat 2, so as to meet the stability requirements. The side of the two clamping discs 6 close to each other is provided with an anti-skid layer (not shown), so as to meet the clamping reliability requirements.

[0047] As shown in Figures 4-6As shown, the outer side of the clamping disc 6 is provided with an annular groove 26, the one-way rotating ring 7 is rotatably connected with the annular groove 26, the inner side of the one-way rotating ring 7 is further fixed with a ratchet 27, the inner bottom of the annular groove 26 is further provided with a pawl groove 28, the pawl groove 28 is fixed with a second shaft 29, the second shaft 29 is rotatably installed with a pawl 30 matched with the ratchet 27, the second shaft 29 is further installed with a torsion spring (not shown) for elastically supporting the pawl 30, the matching relationship of the ratchet 27 and the pawl 30 adopts the disclosed technology, which is not limited and described in detail. The sliding of the blocking cylinder 4 and the blocking rod 5 can adapt to the adjusting movement of the clamping disc 6, according to the shape of the frame to be welded, the blocking cylinder 4 and the blocking rod 5 can be pulled to make the whole of the one-way rotating ring 7 and the ratchet 27 rotate relative to the clamping disc 6, after rotation, the ratchet 27 can be limited and prevented from reversing by the pawl 30, the effect of rotation stop and locking is realized, and the flexible support demand for the frame to be welded is met.

[0048] Further, the one-way rotating ring 7 located on the left side of the group welding table 16 rotates counterclockwise, the one-way rotating ring 7 located on the right side of the group welding table 16 rotates clockwise, which meets the reliable supporting demand, and the ratchet 27 and the pawl 30 can be reasonably arranged.

[0049] As shown, Figures 7-10 As a preferred embodiment of the present application, the adjustable support 10 includes a support seat 31 provided with an arc-shaped groove at the top, the bottom of the support seat 31 is fixed with a gear ring 32, the inner side of the gear ring 32 is provided with a telescopic column 36, the upper end of the telescopic column 36 is rotatably connected with the support seat 31, the telescopic column 36 is fixed with an angle bracket 33, the angle bracket 33 is slidably provided with an L-shaped fixed rod 34 matched with the gear ring 32, the vertical part of the L-shaped fixed rod 34 is further connected with the angle bracket 33 through a first elastic member 35, the first elastic member 35 is used to make the end of the L-shaped fixed rod 34 abut and match with the gear ring 32, the first elastic member 35 can adopt a spring or a spring rope, so as to brake the adjustment of the support seat 31, which is convenient and fast.

[0050] The lower part of the telescopic column 36 is slidably connected with a first sliding cavity 43 provided on the upper part of a supporting cylinder 38, a second elastic member 44 for elastically supporting the telescopic column 36 is further installed in the first sliding cavity 43, the second elastic member 44 can adopt a spring, the upper part of the supporting cylinder 38 is further provided with a fourth fastening bolt 37 for locking and fixing the telescopic column 36, the telescopic column 36 is pushed up under the elastic force of the second elastic member 44 when the fourth fastening bolt 37 is loosened, so as to make the support seat 31 elastically abut with the frame to be welded, and then the fourth fastening bolt 37 is locked, which improves the reliability and convenience of the support.

[0051] The lower part of the support cylinder 38 is provided with a plurality of extension holes 50 distributed in the circumferential direction, a horizontal support rod 42 is slidably arranged on the extension holes 50, the outer end of the horizontal support rod 42 is fixed with an arc-shaped plate 41, the inner end of the horizontal support rod 42 is connected with the lower end of a locking rod 45 through a connecting rod 49, the locking rod 45 is slidably arranged in a second sliding cavity 46 formed in the lower part of the support cylinder 38, the lower part of the second sliding cavity 46 is provided with a transmission cavity 47 for the movement of the connecting rod 49, the upper side of the locking rod 45 is further fixed with an unlocking handle 40, the unlocking handle 40 extends out of a movable opening 39 formed in the side wall of the support cylinder 38, the lower end of the locking rod 45 is further connected with the bottom of the transmission cavity 47 through a third elastic member 48, the third elastic member 48 can be a spring or a spring cord, and the third elastic member 48 is used to make the second sliding cavity 46 close to the bottom of the transmission cavity 47.

[0052] The upper part of the insertion hole 9 is a cylindrical structure, the lower part of the insertion hole 9 is a spherical structure, and the diameter of the spherical structure is greater than that of the cylindrical structure. When the arc-shaped plate 41 is inserted into the insertion hole 9, the unlocking handle 40 is loosened, and under the elastic force of the third elastic member 48, the locking rod 45 moves downward, so that the connecting rod 49 pushes the horizontal support rod 42 to move outward, so that the arc-shaped plate 41 is in abutment and fixed with the lower part of the spherical structure of the insertion hole 9, and the installation is quick and reliable. When the adjustable support 10 needs to be disassembled, pulling the unlocking handle 40 upward can make the connecting rod 49 pull the horizontal support rod 42 to shrink inward, so that the arc-shaped plate 41 shrinks inward and can be pulled out from the cylindrical structure of the insertion hole 9, and the disassembly is quick.

[0053] The above embodiment of the present application provides a frame rapid butt welding assembly equipment, and the working principle is that the welding gun 11 is driven by the multi-axis manipulator 12 to complete the automatic welding task, the assembly welding table 16 is rotatably adjusted and provided with two adjusting seats 22 driven by the motor 14 and the forward and reverse screw rod 23, the adjusting seat 22 is connected with the inverted U-shaped rod through the first supporting shaft 21 and the adjusting cylinder 20, the flexible movement and angle adjustment of the inverted U-shaped rod in space are realized, the middle section 3 of the inverted U-shaped rod is provided with the clamping disc 6, the clamping disc 6 realizes the clamping of the frame to-be-welded part through the clamping push-pull cylinder 1, and is provided with the one-way rotating ring 7, the ratchet 27 and the ratchet pawl 30 structure, so that the clamping disc 6 can rotate in one direction and is back-stopped, the clamping stability and adaptability are improved, the stop rod 5 and the stop cylinder 4 assist in supporting the frame, the assembly welding table 16 is provided with a plurality of insertion holes 9 on the top, the adjustable support 10 can be detachably installed, the adjustable support 10 comprises the arc-shaped recessed seat 31, the telescopic column 36, the support cylinder 38 and the locking mechanism, the height and angle can be adjusted according to the shape of the frame, and the quick installation and disassembly are realized through the elastic support and the automatic locking structure. The overall structure of the present application realizes the stable clamping and flexible support of different models of frames, and significantly improves the welding assembly efficiency and operation convenience.

[0054] The control, model and circuit connection of each component are not specifically limited, and can be flexibly set in actual application. The circuit, electronic components and modules involved are all prior art, and can be realized by those skilled in the art without further description, and the content protected by the present application does not involve improvement of software and method.

[0055] The technical features of the above-described embodiments can be combined arbitrarily, and for the sake of brevity, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combinations of the technical features do not contradict, they should be considered as the scope of the description.

[0056] The above-described embodiments only express several implementation manners of the present application, the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be pointed out that for those skilled in the art, under the premise of not departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A frame rapid butt welding assembly equipment, comprising: a base (13) and a bottom support column (15) fixed thereon, one side of the base (13) being fixed with a multi-axis manipulator (12), and a welding gun (11) being installed at the end of the multi-axis manipulator (12), characterized in that: a welding platform (16) is rotatably adjusted and installed on the upper end of the bottom support column (15), the inner side of the welding platform (16) is slidably provided with two adjusting seats (22), and a driving assembly for driving the two adjusting seats (22) to move close to or away from each other is installed; a reverse U-shaped rod is arranged on each side of the welding platform (16), the two side branch segments (8) of the reverse U-shaped rod are adjustably and movably connected with the adjusting cylinders (20), the two adjusting cylinders (20) are adjustably and rotatably connected with the two ends of the adjusting seat (22) through the first support shaft (21); the middle segment (3) of the reverse U-shaped rod is slidably provided with two clamping discs (6), one side of each clamping disc (6) is fixed with a clamping push-pull cylinder (1), a one-way rotating ring (7) is unidirectionally rotatably installed on each clamping disc (6), a stop rod (5) is arranged between the one-way rotating rings (7) of the two clamping discs (6), and the two ends of the stop rod (5) are slidably provided with stop cylinders (4) fixedly connected with the one-way rotating rings (7); an adjustable support (10) is arranged on the top of the welding platform (16), a plurality of plug-in holes (9) are formed in the top of the welding platform (16), and the adjustable support (10) is detachably installed in the plug-in holes (9) to assist in supporting the height and angle of the workpiece to be welded; a ring groove (26) is formed in the outer side of each clamping disc (6), the one-way rotating ring (7) is rotatably connected with the ring groove (26), the inner side of the one-way rotating ring (7) is fixedly provided with a ratchet (27), a ratchet groove (28) is formed in the inner bottom of the ring groove (26), a second support shaft (29) is fixedly arranged in the ratchet groove (28), a ratchet pawl (30) matched with the ratchet (27) is rotatably installed on the second support shaft (29), and a torsion spring for elastically supporting the ratchet pawl (30) is also installed on the second support shaft (29).

2. The frame rapid docking weld assembly apparatus of claim 1, wherein, a sleeve ring (24) is fixedly arranged on the bottom of the welding platform (16), the upper end of the bottom support column (15) is rotatably connected with the sleeve ring (24), and a third fastening bolt (25) for locking and fixing is installed on the sleeve ring (24).

3. The frame rapid docking weld assembly apparatus of claim 1, wherein, an adjusting cavity is formed in the inner side of the welding platform (16), guide ribs (17) are fixedly arranged on the upper and lower sides of the adjusting cavity, and the adjusting seat (22) is slidably connected with the guide ribs (17); the driving assembly comprises a motor (14) and a forward and reverse screw rod (23), the forward and reverse screw rod (23) is perpendicularly rotatably installed in the middle of the welding platform (16), the adjusting seat (22) is threadedly connected with the forward and reverse screw rod (23), the motor (14) is fixed on the welding platform (16) and is in transmission connection with one end of the forward and reverse screw rod (23), and when the motor (14) drives the forward and reverse screw rod (23) to rotate, the two adjusting seats (22) are synchronously moved close to or away from each other.

4. The frame rapid docking weld assembly apparatus of claim 1, wherein, a second fastening bolt (19) for locking the two side branch segments (8) of the reverse U-shaped rod is installed on the adjusting cylinder (20), one end of the first support shaft (21) is fixedly connected with the adjusting cylinder (20) and the other end is rotatably connected with the adjusting seat (22), and a first fastening bolt (18) for locking the first support shaft (21) is installed on the adjusting seat (22).

5. The frame rapid docking weld assembly apparatus of claim 4, wherein, The unidirectional rotating ring (7) on the left side of the group welding platform (16) rotates counterclockwise, and the unidirectional rotating ring (7) on the right side rotates clockwise.

6. The frame rapid docking weld assembly apparatus of claim 1, wherein, The adjustable support (10) comprises a support base (31) provided with an arc-shaped groove at the top, a gear ring (32) fixed at the bottom of the support base (31), an extension column (36) provided at the inner side of the gear ring (32), the upper end of the extension column (36) being rotationally connected with the support base (31), an angle frame (33) fixed on the extension column (36), an L-shaped fixing rod (34) slidingly provided on the angle frame (33) and matched with the gear ring (32), the L-shaped fixing rod (34) being connected with the angle frame (33) through a first elastic member (35), and the first elastic member (35) is used for abutting the end of the L-shaped fixing rod (34) against the gear ring (32).

7. The frame rapid docking weld assembly apparatus of claim 6, wherein, The lower part of the extension column (36) is slidingly connected with a first sliding cavity (43) at the upper part of a supporting cylinder (38), a second elastic member (44) for elastically supporting the extension column (36) is installed in the first sliding cavity (43), and the upper part of the supporting cylinder (38) is provided with a fourth fastening bolt (37) for locking the extension column (36).

8. The frame rapid docking weld assembly apparatus of claim 7, wherein, The lower part of the supporting cylinder (38) is circumferentially provided with a plurality of extension holes (50), a horizontal supporting rod (42) is slidingly provided on the extension holes (50), the outer end of the horizontal supporting rod (42) is fixed with an arc-shaped plate (41), the inner end of the horizontal supporting rod (42) is connected with the lower end of a locking rod (45) through a connecting rod (49), the locking rod (45) is slidingly provided in a second sliding cavity (46) of the supporting cylinder (38), the upper part of the locking rod (45) is provided with an unlocking handle (40) extending out of an activity opening (39) of the supporting cylinder (38), the lower end of the locking rod (45) is connected with the bottom of a transmission cavity (47) through a third elastic member (48), and the third elastic member (48) is used for abutting the arc-shaped plate (41) against the spherical structure at the lower part of the plug-in hole (9).

9. The frame rapid docking weld assembly apparatus of claim 8, wherein, The upper part of the plug-in hole (9) is a cylindrical structure, the lower part is a spherical structure, and the diameter of the spherical structure is greater than that of the cylindrical structure.

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