Thin-wall gas steel pipe connecting structure and auxiliary connecting equipment

Abstract

The invention relates to the field of technical auxiliary connecting equipment, in particular to a thin-wall gas steel pipe connecting structure and auxiliary connecting equipment, which comprises a workbench, a panel is fixedly mounted on the workbench, and a base for clamping a welding gun is rotatably mounted on a fixed pedestal; transverse mounting plates are symmetrically arranged on the panel in the transverse direction, a support is fixedly mounted on the transverse mounting plates, and a rotating sleeve is rotationally mounted on the support; an abutting mechanism is arranged on the panel, a baffle is connected to the abutting mechanism, and the abutting mechanism can drive the baffle to be close to or away from the rotating sleeve; a plurality of clamping mechanisms are arranged on the rotating sleeve, clamping plates are connected to the clamping mechanisms, and a storage groove is formed in the rotating sleeve; when the clamping mechanism acts, the clamping plate can be driven to slide in the storage groove; the panel is further provided with an aligning mechanism, and the aligning mechanism can drive the transverse mounting plates to be close to or away from each other when acting.

Description

Technical Field

[0001] The invention relates to the technical field of auxiliary connection equipment, in particular to a thin-walled gas steel pipe connection structure and auxiliary connection equipment. Background Art

[0002] Thin-walled gas pipelines refer to pipelines with a larger ratio of outer diameter to wall thickness, usually a ratio greater than 20 is called a thin-walled pipeline. This type of pipeline is usually made by cold drawing process and is suitable for a variety of materials, including carbon steel, low alloy steel, alloy steel, stainless steel, etc.

[0003] The application of thin-walled stainless steel pipes in gas pipelines is mainly due to their superior corrosion resistance, high mechanical strength, health and safety, energy saving and environmental protection. These characteristics make thin-walled stainless steel pipes perform well in gas pipelines, improve the efficiency and safety of gas transportation, and reduce maintenance costs. The connection method between thick-walled pipes and thin-walled pipes is to use one end thread and the other end clamping.

[0004] The method of one end threaded and the other end clamped means that one end of the thick-walled pipe is connected to the thick-walled pipe by thread, while the other end is connected to the thin-walled pipe by clamping. Since the clamping method has deficiencies in overall torsion resistance, tensile strength, and sealing, problems such as leakage and loose connection may occur in actual use. Summary of the invention

[0005] The object of the present invention is to provide a thin-walled gas steel pipe connection structure and auxiliary connection equipment to solve the problems raised in the above background technology.

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

[0007] A thin-walled gas steel pipe connection structure realizes the connection between a pipe body, a flexible connection end and a thin-walled steel pipe, and is characterized in that one end of the pipe body is threadedly connected to the flexible connection end, and the other end is formed into a welding end by a shrinking process, and the welding end is welded to the thin-walled steel pipe.

[0008] As a further solution of the present invention: there is an inclined transition between the pipe body and the welding end.

[0009] An auxiliary connection device comprises a workbench, a panel is fixedly mounted on the workbench, a fixed base is fixedly mounted on the panel; a symmetrically arranged support frame is fixedly mounted in the transverse direction of the panel; a base for clamping a welding gun is rotatably mounted on the fixed base;

[0010] A transverse mounting plate is symmetrically arranged on the panel in the transverse direction, a bracket is fixedly mounted on the transverse mounting plate, and a rotating sleeve is rotatably mounted on the bracket;

[0011] The panel is provided with a resistance mechanism, the resistance mechanism is connected with a baffle, and the resistance mechanism can drive the baffle to approach or move away from the rotating sleeve;

[0012] The rotating sleeve is provided with a plurality of clamping mechanisms, the clamping mechanisms are connected with clamping plates, and the rotating sleeve is provided with a plurality of receiving grooves which are slidably engaged with a plurality of clamping plates; when the clamping mechanisms are actuated, the clamping plates can be driven to slide in the receiving grooves, and the sliding direction is to approach or move away from the axis of the rotating sleeve;

[0013] The panel is also provided with an alignment mechanism, which is connected to the transverse mounting plate. When the alignment mechanism is in action, it can drive the transverse mounting plates to move closer to or farther from each other.

[0014] As a further solution of the present invention: the resistance mechanism includes a longitudinal groove opened on the panel, and a longitudinal mounting plate fixedly connected to the baffle is slidably mounted on the longitudinal groove; a longitudinal screw rod is rotatably mounted on the panel, and a longitudinal internal threaded sleeve fixedly connected to the longitudinal mounting plate is threadedly connected to the longitudinal screw rod.

[0015] As a further solution of the present invention: the clamping mechanism includes a turntable rotatably mounted on the rotating sleeve; a plurality of slide grooves are provided on the turntable, and a turbine is fixedly mounted on the turntable; a sliding block is fixedly connected to the clamping plate, and a protruding column slidingly engaged with the slide groove is fixedly mounted on the sliding block; a fixed plate is fixedly mounted on the rotating sleeve, and a worm column cooperating with the turbine is rotatably mounted on the fixed plate.

[0016] As a further solution of the present invention: the alignment mechanism includes a transverse slot opened on the panel; the transverse slot is slidably engaged with the transverse mounting plate; a bidirectional screw column is rotatably mounted on the panel; both ends of the bidirectional screw column are threadedly connected with a transverse internal threaded sleeve fixedly connected to one of the transverse mounting plates.

[0017] As a further solution of the present invention: a rotating shaft is rotatably mounted on the bracket, and a small gear is fixedly mounted on the rotating shaft; a large gear meshing with the small gear is fixedly mounted on a rotating sleeve rotatably connected to the bracket.

[0018] As a further solution of the present invention: there is a large friction resistance between the base and the fixed base; the welding gun is fixedly mounted on the base by bolts.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: the installation is convenient and quick in actual use through welding and threaded connection, the cost is low, and the connection effect and quality are stable and reliable; the welding quality of the welding end is improved through the alternating action of the interference mechanism, the clamping mechanism, and the alignment mechanism, so that the welded pipe fittings meet the use requirements, and the reduction in welding efficiency caused by welding problems such as misalignment, uneven ports, and welding misalignment is avoided; and through the alternating action of the interference mechanism, the clamping mechanism, and the alignment mechanism, when the size of the pipe fitting body and the thin-walled steel pipe is large, convenience can be provided to the operator to improve the welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The present invention is a structural schematic diagram of an embodiment of a thin-walled gas steel pipe connection structure and auxiliary connection equipment.

[0021] Figure 2 A structural schematic diagram of an embodiment of an auxiliary connection device for a thin-walled gas steel pipe connection structure.

[0022] Figure 3 for Figure 2 Schematic diagram of the structure at A in the middle.

[0023] Figure 4 A structural schematic diagram from another perspective of an embodiment of an auxiliary connection device for a thin-walled gas steel pipe connection structure.

[0024] Figure 5 for Figure 4 Schematic diagram of the structure at B in the figure.

[0025] Figure 6 A schematic structural diagram of a bidirectional screw column and a longitudinal screw column in one embodiment of an auxiliary connection device for a thin-walled gas steel pipe connection structure.

[0026] Figure 7 A schematic structural diagram of a rotating sleeve and a longitudinal mounting plate in one embodiment of an auxiliary connection device for a thin-walled gas steel pipe connection structure.

[0027] Figure 8 A schematic diagram of the structure of a turntable, a worm gear and a worm column in one embodiment of an auxiliary connection device for a thin-walled gas steel pipe connection structure.

[0028] Fig. 9 for Figure 8 Schematic diagram of the structure from an exploded perspective.

[0029] In the figure: 1, workbench; 101, panel; 102, support frame; 103, fixed base; 104, longitudinal notch; 105, transverse notch;

[0030] 2. Base;

[0031] 3. Welding gun;

[0032] 4. Horizontal mounting plate; 401. bracket; 402. rotating shaft; 403. pinion;

[0033] 5. Rotating sleeve; 501. Storage slot; 502. Fixed plate; 503. Large gear;

[0034] 6. Worm column;

[0035] 7. turntable; 701. turbine; 702. chute;

[0036] 8. Slider; 801. Protruding column;

[0037] 9. Clamping plate;

[0038] 10. Longitudinal screw;

[0039] 11. Longitudinal internal threaded sleeve;

[0040] 12. Longitudinal mounting plate;

[0041] 13. Baffle;

[0042] 14. Bidirectional screw column;

[0043] 15. Horizontal internal thread sleeve;

[0044] 16. Union connection end;

[0045] 17. Pipe fitting body;

[0046] 18. Transition end between the body and the welding port;

[0047] 19. Welding end;

[0048] 20. Thin-walled steel pipe. DETAILED DESCRIPTION

[0049] 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.

[0050] In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0051] See also Figures 1 to 9 In an embodiment of the present invention, a thin-walled gas steel pipe connection structure is provided to realize the connection between a pipe body 17 and a flexible connection end 16 and a thin-walled steel pipe 20. The structure is characterized in that one end of the pipe body 17 is threadedly connected to the flexible connection end 16, and the other end is formed into a welding end 19 by a shrinking process. The welding end 19 is welded to the thin-walled steel pipe 20. Through the method of thread, welding and flexible joint, a convenient and reliable connection of the thin-walled steel pipe is realized. The installation is convenient and quick, the cost is low, and the connection effect and quality are stable and reliable.

[0052] The shrinking process described above is a stamping method that uses hydraulic technology to pressurize the pipe mouth with a shrinking mold, and the shrinking part material is deformed by the pressure from the outside to the inside, thereby shrinking the pipe mouth.

[0053] Preferably, there is an inclined transition between the pipe body 17 and the welding end 19 .

[0054] An auxiliary connection device comprises a workbench 1, on which a panel 101 is fixedly mounted, on which a fixed base 103 is fixedly mounted; a symmetrically arranged support frame 102 is fixedly mounted in the transverse direction of the panel 101; a base 2 for clamping a welding gun 3 is rotatably mounted on the fixed base 103;

[0055] The panel 101 is symmetrically provided with a transverse mounting plate 4, a bracket 401 is fixedly mounted on the transverse mounting plate 4, and a rotating sleeve 5 is rotatably mounted on the bracket 401;

[0056] The panel 101 is provided with a resistance mechanism, and the resistance mechanism is connected with a baffle 13, and the resistance mechanism can drive the baffle 13 to approach or move away from the rotating sleeve 5;

[0057] The rotating sleeve 5 is provided with a plurality of clamping mechanisms, the clamping mechanisms are connected with clamping plates 9, and the rotating sleeve 5 is provided with a plurality of receiving grooves 501 which are slidably engaged with a plurality of clamping plates 9; when the clamping mechanisms are in action, the clamping plates 9 can be driven to slide in the receiving grooves 501, and the sliding direction is to approach or move away from the axis of the rotating sleeve 5;

[0058] The panel 101 is also provided with an alignment mechanism, which is connected to the transverse mounting plate 4 . When the alignment mechanism is in operation, it can drive the transverse mounting plates 4 to move closer to or farther from each other.

[0059] Taking the embodiment combining all the features described in the present application as an example, when in use, in the initial position, the baffle 13 is colinear with the axis of the rotating sleeve 5, and the distance between the baffle 13 and the two rotating sleeves 5 is the same; the operator inserts the pipe body 17 and the thin-walled steel pipe 20 into the two rotating sleeves 5 respectively until they contact the baffle 13. At this time, the length of the pipe body 17 and the thin-walled steel pipe 20 exposed outside the rotating sleeve 5 is the same; during this process, the support frame 102 can support the pipe body 17 and the thin-walled steel pipe 20. Afterwards, the operator observes whether the contact surfaces between the pipe body 17 and the baffle 13 and between the thin-walled steel pipe 20 and the baffle 13 are completely fitted, and whether the surface of the pipe is smooth and free of burrs, oil stains, paint, rust, oxide scale, coating, etc. Before welding, the operator wipes the area of ​​the pipe body 17 and the thin-walled steel pipe 20 near the baffle 13 with ethanol, acetone, etc.; through the resistance of the baffle 13, it can be ensured that the relative verticality of the pipe body 17 and the thin-walled steel pipe 20 meets the welding requirements during welding, and can provide a reference for the subsequent alignment mechanism action, thereby improving the reliability of the welding result.

[0060] After the pipe body 17 and the thin-walled steel pipe 20 both come into contact with the baffle 13, the clamping mechanism is activated to drive the multiple clamping plates 9 to approach the axis of the rotating sleeve 5 to clamp the pipe body 17 and the thin-walled steel pipe 20 in the rotating sleeve 5 to prevent the pipe body 17 and the thin-walled steel pipe 20 from shifting in position when the alignment mechanism is activated and during welding, thereby improving welding efficiency and welding quality.

[0061] Then the interference mechanism operates to drive the baffle 13 away from the rotating sleeve 5 to release the interference state between the baffle 13 and the pipe body 17 and the thin-walled steel pipe 20, thereby facilitating the subsequent alignment mechanism operation, and through the sliding friction between the baffle 13 and the pipe body 17 and the thin-walled steel pipe 20, the relative verticality is further improved to improve the welding quality.

[0062] The alignment mechanism drives the rotating sleeve 5 to synchronously approach each other, so as to drive the pipe body 17 and the thin-walled steel pipe 20 to synchronously approach each other, until the two are in contact with each other and aligned. When they are in contact with each other, the contact surface of the two is located directly below the weldment. The alignment mechanism drives the pipe body 17 and the thin-walled steel pipe 20 to synchronously approach each other, which can improve the alignment degree, thereby improving the pipe after welding to meet the use requirements, and the synchronous displacement feature can improve the accuracy of the contact between the welding gun 3 and the welding part, so as to improve the welding quality.

[0063] The welding position (the contact end between the pipe body 17 and the thin-walled steel pipe 20) is spot welded by a handheld welding torch 3 to ensure that the pipe body 17 and the thin-walled steel pipe 20 do not rotate relative to each other during the complete welding process, thereby improving the welding quality.

[0064] Afterwards, by rotating the base 2, the welding end of the welding gun 3 is in contact with the welding part (the contact end of the pipe body 17 and the thin-walled steel pipe 20). At this time, rotating the rotating sleeve 5 drives the pipe body 17 and the thin-walled steel pipe 20 to rotate synchronously. During the rotation process, the welding gun 3 will weld the welding part.

[0065] Through the alternating action of the abutment mechanism, the clamping mechanism and the alignment mechanism, the welding quality of the welding end is improved so that the welded pipe fittings meet the use requirements and the reduction of welding efficiency due to welding problems such as misalignment, uneven ports and welding misalignment is avoided. In addition, through the alternating action of the abutment mechanism, the clamping mechanism and the alignment mechanism, convenience can be provided to the operator when the sizes of the pipe fitting body 17 and the thin-walled steel pipe 20 are large, so as to improve the welding efficiency.

[0066] According to another embodiment of the present invention, the interference mechanism includes a longitudinal slot 104 provided on the panel 101, and a longitudinal mounting plate 12 fixedly connected to the baffle 13 is slidably mounted on the longitudinal slot 104; a longitudinal screw rod 10 is rotatably mounted on the panel 101, and a longitudinal internal threaded sleeve 11 fixedly connected to the longitudinal mounting plate 12 is threadedly connected to the longitudinal screw rod 10.

[0067] Taking the embodiment combining all the features recorded in the present application as an example, when in use, the longitudinal screw column 10 is driven to rotate by the driving assembly, and the longitudinal internal threaded sleeve 11 is driven to slide along the length direction of the longitudinal screw column 10 by cooperating with the thread of the longitudinal internal threaded sleeve 11, thereby driving the longitudinal mounting plate 12 to slide on the longitudinal groove 104, thereby driving the baffle 13 to move closer to or away from the rotating sleeve 5.

[0068] Before inserting the pipe body 17 and the thin-walled steel pipe 20 into the rotating sleeve 5, the longitudinal screw column 10 is rotated by the driving assembly to drive the baffle 13 to move to a position colinear with the axis of the rotating sleeve 5. Then the operator inserts the pipe body 17 and the thin-walled steel pipe 20 into the two rotating sleeves 5 respectively until they contact with the baffle 13. At this time, the length of the pipe body 17 and the thin-walled steel pipe 20 exposed outside the rotating sleeve 5 is the same; through the contact effect of the baffle 13, it can be ensured that during welding, the relative verticality of the pipe body 17 and the thin-walled steel pipe 20 meets the welding requirements, and can provide a reference for the subsequent alignment mechanism action, thereby improving the reliability of the welding result.

[0069] After the clamping mechanism is actuated, the interference mechanism is switched to actuate, and the baffle plate 13 is driven away from the rotating sleeve 5 to release the interference state between the baffle plate 13 and the pipe body 17 and the thin-walled steel pipe 20, thereby facilitating the subsequent alignment mechanism action, and through the sliding friction between the baffle plate 13 and the pipe body 17 and the thin-walled steel pipe 20, the relative verticality is further improved to improve the welding quality.

[0070] According to another embodiment of the present invention, the clamping mechanism includes a turntable 7 rotatably mounted on the rotating sleeve 5; a plurality of slide grooves 702 are provided on the turntable 7, and a turbine 701 is fixedly mounted on the turntable 7; a slider 8 is fixedly connected to the clamping plate 9, and a protruding column 801 slidingly engaged with the slide groove 702 is fixedly mounted on the slider 8; a fixed plate 502 is fixedly mounted on the rotating sleeve 5, and a worm column 6 cooperating with the turbine 701 is rotatably mounted on the fixed plate 502.

[0071] Taking the embodiment combining all the features described in the present application as an example, when in use, after the pipe is inserted into the rotating sleeve 5 and contacts the baffle 13, the worm column 6 is driven to rotate through the driving assembly, and the turbine 701 is driven to rotate through the mutual cooperation with the turbine 701, thereby driving the turntable 7 to rotate.

[0072] When the turntable 7 rotates, it drives the slide groove 702 to rotate. The slide groove 702 is set at an angle. Through the extrusion effect of the inner wall of the slide groove 702, the protruding column 801 will slide in the slide groove 702 toward the axial direction of the rotating sleeve 5, thereby driving the clamping plate 9 to slide toward the axial direction of the rotating sleeve 5 through the slider 8. Through multiple groups of clamping plates 9, the pipe fittings are synchronously approached along the circumference of the rotating sleeve 5 to clamp the pipe fittings; this is to prevent the pipe fitting body 17 and the thin-walled steel pipe 20 from shifting in position when the alignment mechanism is activated and during welding, which can improve welding efficiency and welding quality.

[0073] In another embodiment of the present invention, the alignment mechanism includes a transverse slot 105 opened on the panel 101; the transverse slot 105 is slidably engaged with the transverse mounting plate 4; a bidirectional screw column 14 is rotatably mounted on the panel 101; both ends of the bidirectional screw column 14 are threadedly connected with a transverse internal threaded sleeve 15 fixedly connected to one of the transverse mounting plates 4.

[0074] Taking the embodiment combining all the features recorded in the present application as an example, when in use, after the clamping mechanism is actuated, the interference mechanism is switched to actuate, and the baffle plate 13 is driven away from the rotating sleeve 5 to release the interference state between the baffle plate 13 and the pipe body 17 and the thin-walled steel pipe 20, thereby facilitating the subsequent alignment mechanism action, and through the sliding friction between the baffle plate 13 and the pipe body 17 and the thin-walled steel pipe 20, the relative verticality is further improved to improve the welding quality.

[0075] Then, the bidirectional screw column 14 is driven to rotate by the driving assembly, and the transverse internal threaded sleeves 15 on both ends of the bidirectional screw column 14 will approach each other under the action of thread cooperation, so as to drive the transverse mounting plate 4 to slide in the transverse groove 105 and approach each other, thereby driving the pipe fittings to approach each other by rotating the sleeve 5 until the pipe fittings collide with each other.

[0076] By driving the pipe body 17 and the thin-walled steel pipe 20 to approach each other synchronously through the alignment mechanism, the alignment degree can be improved, so that the pipe after welding can meet the use requirements. The synchronous displacement feature can improve the accuracy of the contact between the welding gun 3 and the welding part, so as to improve the welding quality.

[0077] In another embodiment of the present invention, a rotating shaft 402 is rotatably mounted on a bracket 401 , and a small gear 403 is fixedly mounted on the rotating shaft 402 ; a large gear 503 meshing with the small gear 403 is fixedly mounted on a rotating sleeve 5 rotatably connected to the bracket 401 .

[0078] Taking the embodiment combining all the features recorded in the present application as an example, when in use, after the pipes are aligned, the welding parts (the contact ends of the pipe body 17 and the thin-walled steel pipe 20) are spot welded by a handheld welding gun 3 to fix the pipe body 17 and the thin-walled steel pipe 20 together to ensure that during the complete welding process, the pipe body 17 and the thin-walled steel pipe 20 will not rotate relative to each other, thereby improving the welding quality.

[0079] Then, when the base 2 is rotated, the welding gun 3 contacts the pipe connection to perform welding operation.

[0080] The driving assembly drives the rotating shaft 402 to rotate, drives the small gear 403 to rotate, and drives the large gear 503 to rotate through the meshing action, so as to drive the rotating sleeve 5 to rotate. Under the clamping of the clamping mechanism, the pipe fitting will also rotate synchronously. During the rotation process, the welding gun 3 continues to weld the connection to ensure that the weld at the welding point is continuous and reliable, thereby improving the welding quality and welding efficiency.

[0081] In another embodiment of the present invention, there is a large friction resistance between the base 2 and the fixed base 103; the welding gun 3 is fixedly mounted on the base 2 by bolts.

[0082] Taking the embodiment combining all the features recorded in this application as an example, when in use, the large friction resistance can ensure that the welding gun 3 does not lose contact with the welding point during the welding process, so as to ensure that the weld at the welding point is continuous and reliable, and improve the welding quality and welding efficiency.

[0083] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0084] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A thin-walled gas steel pipe connection structure, which realizes the connection between a pipe body (17) and a flexible connection end (16) and a thin-walled steel pipe (20), characterized in that: One end of the pipe body (17) is threadedly connected to the flexible connection end (16), and the other end is formed into a welding end (19) by a shrinking process, and the welding end (19) is welded to the thin-walled steel pipe (20).

2. A thin-walled gas steel pipe connection structure according to claim 1, characterized in that: There is an inclined transition between the pipe body (17) and the welding end (19).

3. An auxiliary connection device for a thin-walled gas steel pipe connection structure as claimed in any one of claims 1 to 2, comprising a workbench (1), a panel (101) is fixedly mounted on the workbench (1), a fixed base (103) is fixedly mounted on the panel (101); a symmetrically arranged support frame (102) is fixedly mounted in the transverse direction of the panel (101); a base (2) for clamping a welding gun (3) is rotatably mounted on the fixed base (103); It is characterized in that A transverse mounting plate (4) is symmetrically arranged on the panel (101) in the transverse direction, a bracket (401) is fixedly mounted on the transverse mounting plate (4), and a rotating sleeve (5) is rotatably mounted on the bracket (401); The panel (101) is provided with a resistance mechanism, the resistance mechanism is connected to a baffle (13), and the resistance mechanism can drive the baffle (13) to move closer to or away from the rotating sleeve (5); The rotating sleeve (5) is provided with a plurality of clamping mechanisms, the clamping mechanisms are connected to clamping plates (9), and the rotating sleeve (5) is provided with a plurality of receiving grooves (501) slidably engaged with a plurality of clamping plates (9); when the clamping mechanisms are in motion, they can drive the clamping plates (9) to slide in the receiving grooves (501), and the sliding direction is to approach or move away from the axis of the rotating sleeve (5); The panel (101) is also provided with an alignment mechanism, which is connected to the transverse mounting plate (4), and can drive the transverse mounting plates (4) to move closer to or farther from each other when the alignment mechanism is in operation.

4. An auxiliary connection device according to claim 3, characterized in that: The interference mechanism comprises a longitudinal slot (104) provided on the panel (101), a longitudinal mounting plate (12) fixedly connected to the baffle (13) being slidably mounted on the longitudinal slot (104); a longitudinal screw rod (10) being rotatably mounted on the panel (101), a longitudinal internal threaded sleeve (11) fixedly connected to the longitudinal mounting plate (12) being threadedly connected to the longitudinal screw rod (10).

5. An auxiliary connection device according to claim 4, characterized in that: The clamping mechanism comprises a turntable (7) rotatably mounted on the rotating sleeve (5); a plurality of groups of slide grooves (702) are provided on the turntable (7), and a turbine (701) is fixedly mounted on the turntable (7); a slider (8) is fixedly connected to the clamping plate (9), and a protruding column (801) slidably engaged with the slide groove (702) is fixedly mounted on the slider (8); a fixed plate (502) is fixedly mounted on the rotating sleeve (5), and a worm column (6) rotatably mounted on the fixed plate (502) and matched with the turbine (701) is rotatably mounted on the fixed plate (502).

6. An auxiliary connection device according to claim 5, characterized in that: The alignment mechanism comprises a transverse slot (105) provided on the panel (101); the transverse slot (105) is slidably engaged with the transverse mounting plate (4); a bidirectional screw column (14) is rotatably mounted on the panel (101); both ends of the bidirectional screw column (14) are threadedly connected with a transverse internal threaded sleeve (15) fixedly connected to one of the transverse mounting plates (4).

7. An auxiliary connection device according to claim 6, characterized in that: A rotating shaft (402) is rotatably mounted on one of the brackets (401), and a small gear (403) is fixedly mounted on the rotating shaft (402); a large gear (503) meshing with the small gear (403) is fixedly mounted on a rotating sleeve (5) rotatably connected to the bracket (401).

8. The auxiliary connection device according to claim 3, characterized in that: There is relatively large friction resistance between the base (2) and the fixed pedestal (103); the welding gun (3) is fixedly mounted on the base (2) by means of bolts.

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