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

Abstract

The utility model relates to the technical field of 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 utility model 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 are those with a large ratio of outer diameter to wall thickness, typically greater than 20. These pipes are typically made through a cold-drawing process and are suitable for a variety of materials, including carbon steel, low-alloy steel, alloy steel, and stainless steel.

[0003] Thin-walled stainless steel pipes are used in gas pipelines primarily due to their superior corrosion resistance, high mechanical strength, safety, energy conservation, and environmental friendliness. These characteristics make thin-walled stainless steel pipes excellent performers in gas pipelines, improving the efficiency and safety of gas transportation while reducing maintenance costs. Thick-walled and thin-walled pipes can be connected using a threaded connection on one end and a crimped connection on the other.

[0004] The one-end threaded, one-end clamping method means that one end of the thick-walled pipe is connected to the thick-walled pipe by threading, while the other end is connected to the thin-walled pipe by clamping. Due to the shortcomings of the clamping method in terms of overall torsion resistance, tensile strength, and sealing, problems such as leakage and loose connection may occur in actual use. Utility Model Content

[0005] The purpose of the utility model 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 objectives, the present invention provides the following technical solutions:

[0007] A thin-walled gas steel pipe connection structure realizes the connection between the pipe body, the flexible connection end and the thin-walled steel pipe. It 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: an inclined transition is provided 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 laterally on 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, 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 to a baffle, and the resistance mechanism can drive the baffle to move closer to or away from the rotating sleeve;

[0012] The rotating sleeve is provided with multiple sets of clamping mechanisms, each of which is connected to a clamping plate. The rotating sleeve is provided with multiple sets of receiving grooves that are slidably engaged with the majority of the clamping plates. When the clamping mechanisms are actuated, the clamping plates can be driven to slide in the receiving grooves, with the sliding direction being toward or away from the axis of the rotating sleeve.

[0013] The panel is further provided with an alignment mechanism, which is connected to the transverse mounting plate. When the alignment mechanism is in operation, 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 slot opened on the panel, and a longitudinal mounting plate fixedly connected to the baffle is slidably installed on the longitudinal slot; a longitudinal screw rod is rotatably installed 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; multiple groups of sliding grooves are provided on the turntable, and a turbine is fixedly mounted on the turntable; a slider is fixedly connected to the clamping plate, and a protruding column slidingly engaged with the sliding groove is fixedly mounted on the slider; a fixed plate is fixedly mounted on the rotating sleeve, and a worm column rotatingly mounted on the fixed plate and cooperating with the turbine.

[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 installed on the panel; both ends of the bidirectional screw column are threadedly connected to 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 a 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: 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 resistance 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 the alternating action of the resistance mechanism, the clamping mechanism, and the alignment mechanism can provide convenience for the operator when the size of the pipe fitting body and the thin-walled steel pipe is large, thereby improving the welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The figure is a structural 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 point A.

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

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

[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 This is a structural schematic 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 structural diagram 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] Figure 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 thread 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 embodiments described 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 making creative efforts 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 an intermediate 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 an intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only embodiment.

[0051] See also Figures 1 to 9 In the embodiment of the utility model, a thin-walled gas steel pipe connection structure is provided, which realizes the connection between the pipe body 17, the flexible connection end 16 and the thin-walled steel pipe 20. It 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 by a shrinking process to form a welding end 19. 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 achieved. The installation is convenient and fast, the cost is low, and the connection effect and quality are stable and reliable.

[0052] The above-mentioned necking process is a stamping method that uses hydraulic technology to pressurize the pipe mouth with a necking mold, and the necking 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 includes a workbench 1, a panel 101 fixedly mounted on the workbench 1, a fixed base 103 fixedly mounted on the panel 101; a symmetrically arranged support frame 102 fixedly mounted laterally on the panel 101; a base 2 for clamping a welding gun 3 is rotatably mounted on the fixed base 103;

[0055] A transverse mounting plate 4 is symmetrically arranged on the panel 101, 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 to a baffle 13, and the resistance mechanism can drive the baffle 13 to move closer to or away from the rotating sleeve 5;

[0057] The rotating sleeve 5 is provided with multiple sets of clamping mechanisms, each of which is connected to a clamping plate 9. The rotating sleeve 5 is provided with multiple sets of receiving grooves 501 that are slidably engaged with the majority of the clamping plates 9. When the clamping mechanisms are actuated, they can drive the clamping plates 9 to slide within the receiving grooves 501, with the sliding direction being toward or away from the axis of the rotating sleeve 5.

[0058] The panel 101 is further 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 this application as an example, when in use, in the initial position, the baffle 13 is collinear 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, plating, 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 interference effect 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, so as 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 the welding process, thereby improving welding efficiency and welding quality.

[0061] Afterwards, 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 synchronously toward each other, thereby driving the pipe body 17 and the thin-walled steel pipe 20 synchronously toward each other until they contact and align with each other. When they contact each other, their contact surface is located directly below the weldment. The alignment mechanism drives the pipe body 17 and the thin-walled steel pipe 20 synchronously toward each other, which can improve the alignment, thereby ensuring that the welded pipe meets the requirements of use. The synchronous displacement feature can also improve the contact accuracy of the welding gun 3 with the welding part, thereby improving the welding quality.

[0063] Spot welding is performed on the welding part (the contact end between the pipe body 17 and the thin-walled steel pipe 20) by using a handheld welding gun 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 between the pipe body 17 and the thin-walled steel pipe 20). At this time, 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] By the alternating action of the conflict 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 in welding efficiency caused by welding problems such as misalignment, uneven ports, and welding misalignment is avoided. In addition, by the alternating action of the conflict mechanism, the clamping mechanism, and the alignment mechanism, convenience can be provided to the operator when the pipe fitting body 17 and the thin-walled steel pipe 20 are large in size, thereby improving the welding efficiency.

[0066] In another embodiment of the present utility model, 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 described in this 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 slot 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 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 interference 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 results.

[0069] After the clamping mechanism is actuated, the interference mechanism is switched to actuate, and the baffle 13 is driven 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 action. The relative verticality is further improved through the sliding friction between the baffle 13 and the pipe body 17 and the thin-walled steel pipe 20, thereby improving the welding quality.

[0070] In another embodiment of the present utility model, the clamping mechanism includes 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 that slides and engages 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 that cooperates with the turbine 701 is rotatably mounted on the fixed plate 502.

[0071] Taking the embodiment combining all the features described in this 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 by the driving assembly, and the turbine 701 is driven to rotate by 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 slider 8 to drive the clamping plate 9 to slide toward the axial direction of the rotating sleeve 5. 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 prevents the pipe fitting body 17 and the thin-walled steel pipe 20 from shifting in position when the alignment mechanism is in action and during welding, thereby improving welding efficiency and welding quality.

[0073] In another embodiment of the present invention, the alignment mechanism includes 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 to a transverse internal threaded sleeve 15 fixedly connected to one of the transverse mounting plates 4.

[0074] Taking the embodiment combining all the features described in this application as an example, when in use, after the clamping mechanism is actuated, the interference mechanism is switched to actuate, and the baffle 13 is driven 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 action, 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.

[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 the threaded 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 conflict 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, thereby ensuring that the welded pipe meets the use requirements. The synchronous displacement feature can also improve the accuracy of the contact between the welding gun 3 and the welding part, thereby improving 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 the rotating sleeve 5 rotatably connected to the bracket 401 .

[0078] Taking the embodiment combining all the features described in this 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 using a handheld welding gun 3 to fix the pipe body 17 and the thin-walled steel pipe 20 together 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.

[0079] Then, when the base 2 is rotated, the welding gun 3 contacts the pipe connection to perform the 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, thereby driving 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 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 described 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 present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0084] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method 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 can also be appropriately combined to form other implementation methods 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 the pipe body (17) and the flexible connection end (16) and the 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 according to any one of claims 1 to 2, comprising a workbench (1), a panel (101) fixedly mounted on the workbench (1), a fixed base (103) fixedly mounted on the panel (101); a symmetrically arranged support frame (102) fixedly mounted laterally on the panel (101); a base (2) for clamping a welding gun (3) rotatably mounted on the fixed base (103); It is characterized by: A transverse mounting plate (4) is symmetrically arranged on the panel (101), 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) that are slidably engaged with a plurality of clamping plates (9); when the clamping mechanisms are in operation, they can drive the clamping plates (9) to slide in the receiving grooves (501), and the sliding direction is toward or away from the axis of the rotating sleeve (5); An alignment mechanism is also provided on the panel (101), and the alignment mechanism 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.

4. The 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. The 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) is fixedly mounted on the slider (8) and is slidably engaged with the slide groove (702); a fixed plate (502) is fixedly mounted on the rotating sleeve (5), and a worm column (6) is rotatably mounted on the fixed plate (502) and is engaged with the turbine (701).

6. The auxiliary connection device according to claim 5, characterized in that: The alignment mechanism comprises a transverse notch (105) provided on the panel (101); the transverse notch (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 to a transverse internal threaded sleeve (15) fixedly connected to one of the transverse mounting plates (4).

7. The 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 a 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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