Separable primary and secondary welding trolley

Abstract

The utility model relates to a separable primary and secondary welding trolley. Comprising a movable mother welding trolley, and the mother welding trolley is connected with a son welding trolley with a welding unit through a rotary lifting unit; the bottom of the rotary lifting unit is fixedly connected with the primary welding vehicle, the front end of the rotary lifting unit is detachably connected with the secondary welding vehicle connecting part through the primary welding vehicle connecting part, and the primary welding vehicle is provided with a bus aviation pipeline quick plug-in unit. The inner side surface of the sub-welding vehicle connecting part is provided with a sub-line aviation pipeline quick plug-in unit matched with the bus aviation pipeline quick plug-in unit; a flexible pipeline and a welding cable are arranged between the bus aviation pipeline quick plug-in unit and the sub-wire aviation pipeline quick plug-in unit; the main welding vehicle supplies cooling water and shielding gas to the sub welding vehicle through the flexible pipeline; the welding trolley has the advantages of being multipurpose, reducing purchase cost of enterprises, reducing the size of the sub-welding trolley and improving applicable working conditions of the welding trolley.

Description

Technical Field

[0001] The utility model relates to the technical field of welding processing, in particular to a detachable parent-child welding vehicle. Background Art

[0002] The existing welding form is mainly manual welding, which has the characteristics of good flexibility and can be applied to various working conditions, but its welding efficiency and welding quality cannot be guaranteed; in order to overcome the above defects, the inventor applied for the authorization announcement number: CN 113385870B, and the name of the invention patent application is: A self-propelled full-scene welding vehicle; the welding vehicle can facilitate the movement of the welding robot to achieve the characteristics of improving welding quality and welding efficiency. However, the above-mentioned authorized invention patent has the problem of relatively single applicable working conditions in actual use; based on this, the inventor applied for "A crawler welding vehicle for internal welding of parts to be welded". The above-mentioned welding vehicle can enter the interior of a large welding device for welding, which has solved the problem of the welding vehicle being too large in the above-mentioned invention technical solution; but the following defects still exist: 1. Enterprises need to use different welding vehicles in different welding environments, resulting in the problem of excessive investment costs (thus causing the defect of high welding costs); 2. The welding range of the above-mentioned authorized invention patent is too small, which makes it unsuitable for a variety of welding environments; 3. Since the above-mentioned crawler welding vehicle needs to be used alone, it inevitably needs to be equipped with protective gas cylinders, welding power supplies, etc. In order to ensure its welding effect, its volume cannot be further reduced, which makes it still unable to enter the relatively small space. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a detachable mother-and-child welding vehicle.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A detachable mother-and-child welding vehicle comprises a movable mother welding vehicle, which is connected to a child welding vehicle with a welding unit via a rotary lifting unit; the bottom of the rotary lifting unit is fixedly connected to the mother welding vehicle, and the front end of the rotary lifting unit is detachably connected to the child welding vehicle connecting part via the mother welding vehicle connecting part; a busbar aviation pipeline quick plug-in is provided on the mother welding vehicle, and a child-line aviation pipeline quick plug-in that is compatible with the busbar aviation pipeline quick plug-in is provided on the inner surface of the child welding vehicle connecting part; a flexible pipeline for supplying cooling water and protective gas from the mother welding vehicle to the child welding vehicle and a welding cable are provided between the busbar aviation pipeline quick plug-in and the child-line aviation pipeline quick plug-in.

[0006] The beneficial effects of the utility model are as follows: the utility model can realize the use of the mother welding vehicle and the sub-welding vehicle in combination, through the rotary lifting unit, and after the mother welding vehicle and the sub-welding vehicle are separated, by setting a detachable mother-child welding vehicle, so as to achieve the use of one vehicle for multiple purposes and reduce the purchase cost of the enterprise under the characteristics of different welding environments; further, the mother welding vehicle and the sub-welding vehicle are connected by a rotary lifting unit, and the sub-welding vehicle can be sent to various directions for welding under the premise that the mother welding vehicle is immobile through the rotary lifting unit, so as to increase its welding range; further, the utility model arranges the gas cylinder, cooling water tank and welding power supply used for welding on the mother welding vehicle, and connects them through the flexible pipelines of the mother aviation pipeline quick plug-in and the sub-line aviation pipeline quick plug-in, so as to reduce the volume of the sub-welding vehicle, thereby achieving the purpose of welding in a small space; at the same time, when the sub-welding vehicle enters a small space, it can be hoisted and adjusted in position through the rotary lifting unit, so as to achieve the characteristic of convenient entry and exit of the interior of the equipment to be welded without the cooperation of external hoisting equipment.

[0007] Preferably, the mother welding vehicle connection part includes a connection seat, a fixed seat is provided on the top of the connection seat, and a first fixed connecting piece is provided on the fixed seat; the sub-welding vehicle connection part is arranged at the tail of the sub-welding vehicle, and it includes a second fixed connecting piece adapted to the first fixed connecting piece, and a sub-line aviation pipeline quick plug-in adapted to the mother line aviation pipeline quick plug-in.

[0008] Preferably, the first fixed connection member includes positioning columns respectively arranged on both sides of the outside of the fixing seat, and the upper surfaces of the positioning columns are provided with pin holes; the second fixed connection member includes positioning square tubes arranged on both sides of the upper part of the end of the sub-welding vehicle, the setting position of the positioning square tube matches the positioning columns, and the upper surface of the positioning square tube is provided with positioning holes at positions corresponding to the pin holes.

[0009] Preferably, the mother welding vehicle comprises a mother welding vehicle chassis, driving wheels are respectively arranged around the bottom of the mother welding vehicle chassis, a rotary lifting unit is arranged at the middle position of the top of the mother welding vehicle chassis, a sub-welding vehicle placement area is arranged on the mother welding vehicle chassis in front of the rotary lifting unit, a mother vehicle battery box and a power control box are respectively arranged on the mother welding vehicle chassis on both sides of the rotary lifting unit, a water tank control cabinet is arranged on the mother welding vehicle chassis behind the rotary lifting unit, water tanks and gas cylinder placement areas for placing gas cylinders are respectively arranged on both sides of the water tank control cabinet, and a welding power box is arranged at the rear of the water tank control cabinet; a mother welding vehicle power control box assembly is arranged in front of the sub-welding vehicle placement area, and a busbar aviation pipeline quick plug-in is arranged on the surface of the mother welding vehicle power control box assembly.

[0010] Preferably, the rotary lifting unit includes a rotary platform base connected to the chassis of the mother welding vehicle, a rotary platform with a rotary motor is provided on the top of the rotary platform base, the top of the rotary platform is a rotating disk, and rotating disk connecting members are respectively provided on both sides of the top of the rotating disk, and a first connecting shaft is provided between the two rotating disk connecting members, the outside of the first connecting shaft is connected to the main support arm through a bearing, the top of the main support arm is provided with a mounting groove, and a second connecting shaft is provided between the mounting grooves, and the outside of the second connecting shaft is connected to the middle part of the L-shaped connecting plate through a bearing, and the two sides of the end of the L-shaped connecting plate are respectively connected to the rear part of the rotating disk connecting member through a ball head pull rod, and the front end of the L-shaped connecting plate is movably connected to the upper part of the connecting seat through a secondary support arm; the two sides of the main support arm are respectively connected to the front part of the rotating disk connecting member on the same side through their respective corresponding balance springs; the inner middle part of the main support arm is connected to the chassis of the mother welding vehicle through a first master oil cylinder, and the inner upper part of the main support arm is movably connected to the lower part of the connecting seat through a second master oil cylinder.

[0011] Preferably, the sub-welding vehicle comprises a sub-welding vehicle chassis, a mounting base for mounting a welding robot body is provided in the middle of the sub-welding vehicle chassis, a frame connected to the welding vehicle chassis is provided at the rear of the mounting base, a welding gun cleaning station is provided on the top of the frame, a positioning square tube and a sub-welding vehicle folding support unit are provided on both sides of the welding gun cleaning station, a sub-welding vehicle power box for driving the sub-welding vehicle to move is provided between the frame and the sub-welding vehicle chassis, and a sub-line aviation pipeline quick plug-in is provided at the lower part of the rear end of the welding gun cleaning station; hydraulic stations compatible with the sub-welding vehicle folding support unit are provided on the sub-welding vehicle chassis on both sides of the frame, wherein a wire feeder connected to the frame is provided on the upper part of the hydraulic station on one side; a welding wire reel connected to the frame is provided on the upper part of the hydraulic station on the other side, and a sub-welding vehicle power control box assembly connected to the sub-welding vehicle power box is provided on the sub-welding vehicle chassis in front of the mounting base; tracks capable of driving the sub-welding vehicle to move are provided on both sides of the bottom of the sub-welding vehicle chassis.

[0012] Preferably, the sub-welding vehicle folding support unit comprises a sub-welding vehicle earring cylinder, a fixed end of the sub-welding vehicle earring cylinder is connected to the vehicle frame, and a movable end of the sub-welding vehicle earring cylinder is movably connected to the main ground support.

[0013] Preferably, the outer upper portion of the main ground support is connected to the fixed end of the auxiliary support cylinder, and the movable end of the auxiliary support cylinder is movably connected to the auxiliary ground support.

[0014] A detachable mother-and-child welding vehicle made according to the above technical solution is essentially able to be used alone or separately, so as to reduce the purchase cost of the user enterprise and improve the applicable scope of the welding vehicle; specifically, the utility model can make the mother-and-child welding vehicles be used in combination, and can also be used after the mother-and-child welding vehicles are separated; the utility model is connected by setting a rotary lifting unit, and the rotary lifting unit can realize the premise that the mother welding vehicle is immobile, and the child welding vehicle is sent to various directions for welding to improve its welding range; further, the utility model sets the gas cylinder, cooling water tank and welding power supply for welding on the mother welding vehicle, and connects the flexible pipeline through the mother aviation pipeline fast plug-in and the child aviation pipeline fast plug-in to reduce the volume of the child welding vehicle, so as to achieve the purpose of welding in a small space; the rotary lifting unit described in the utility model is fixedly connected to the mother welding vehicle, and the rotary lifting unit and the child welding vehicle are detachably connected to achieve the purpose of easy combination and separation; it has the advantages of one vehicle for multiple uses, reducing the purchase cost of the user enterprise, reducing the volume of the child welding vehicle and improving the applicable working conditions of the welding vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the combined state structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the utility model in a separated state;

[0017] Figure 3 This is a schematic diagram of the structure of the sub-welding vehicle of the utility model;

[0018] Figure 4 The figure is a schematic diagram of the position relationship of the square tube in the sub-welding vehicle of the utility model;

[0019] Figure 5 It is a structural schematic diagram of the rear part of the sub-welding vehicle of the utility model;

[0020] Figure 6 This is a schematic diagram of the structure of the rotary lifting unit of the utility model;

[0021] Figure 7 It is a side structural schematic diagram of the rotary lifting unit of the utility model.

[0022] In the figure: 1 busbar aviation pipeline quick plug-in, 2 sub-line aviation pipeline quick plug-in, 3 connecting seat, 4 fixing seat, 5 positioning column, 6 pin hole, 7 mother vehicle battery box, 8 positioning square tube, 9 positioning hole, 10 mother welding vehicle chassis, 11 driving wheel, 12 power control box, 13 water tank control cabinet, 14 water tank, 15 wire feeder, 16 welding power box, 17 rotary platform base, 18 rotary motor, 19 rotary platform, 20 rotating disk, 21 rotating disk connector, 22 first connecting shaft, 23 main support arm, 24 second connecting shaft , 25L-type connecting plate, 26 ball head pull rod, 27 auxiliary support arm, 28 balance spring, 29 first main oil cylinder, 30 second main oil cylinder, 31 sub-welding vehicle chassis, 32 welding robot body, 33 mounting base, 34 frame, 35 welding gun cleaning station, 36 sub-welding vehicle power box, 37 hydraulic station, 38 welding wire reel, 39 sub-welding vehicle power control box assembly, 40 crawler, 41 sub-welding vehicle earring cylinder, 42 main ground support, 43 auxiliary support oil cylinder, 44 auxiliary ground support, 45 main welding vehicle power control box assembly. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-7The utility model is a detachable mother-and-child welding vehicle, a detachable mother-and-child welding vehicle, which includes a movable mother welding vehicle, which is connected to a child welding vehicle with a welding unit through a rotary lifting unit; the bottom of the rotary lifting unit is fixedly connected to the mother welding vehicle, and the front end of the rotary lifting unit is detachably connected to the child welding vehicle connecting part through the mother welding vehicle connecting part, a busbar aviation pipeline fast plug-in 1 is provided on the mother welding vehicle, and a child-line aviation pipeline fast plug-in 2 matched with the busbar aviation pipeline fast plug-in 1 is provided on the inner surface of the child welding vehicle connecting part; a flexible pipeline for supplying cooling water and protective gas from the mother welding vehicle to the child welding vehicle and a welding cable are provided between the busbar aviation pipeline fast plug-in 1 and the child-line aviation pipeline fast plug-in 2. The essence of the utility model is to change the traditional thinking, and change the traditional integrated welding vehicle into a split welding vehicle, so as to meet the needs of different welding environments. The utility model is a further improvement based on the authorization announcement number applied by the inventor: CN 113385870B, and the utility model patent name: "A crawler welding vehicle for internal welding of parts to be welded", so as to achieve the use when the sub-welding vehicle and the parent welding vehicle are combined and separated. At the same time, the parent welding vehicle is connected to the sub-welding vehicle through a rotary lifting unit to achieve the characteristic of improving the welding range, and by setting a connecting pipeline between the busbar aviation pipeline quick plug-in 1 and the sub-line aviation pipeline quick plug-in 2, the welding power supply, cooling water tank and shielding gas cylinder necessary for welding are set on the parent welding vehicle, which not only makes it used as a counterweight on the parent welding vehicle, but also can effectively reduce the volume of the sub-welding vehicle, thereby improving the passability of the sub-welding vehicle, and realizing the characteristic of welding operations in a narrow area.

[0025] For further information, see Figure 2 , 5 , 6, 7, the mother welding car connection part includes a connection seat 3, the top of the connection seat 3 is provided with a fixed seat 4, and the fixed seat 4 is provided with a first fixed connector; the sub-welding car connection part is arranged at the tail of the sub-welding car, which includes a second fixed connector adapted to the first fixed connector, and a sub-line aviation pipeline fast plug-in adapted to the mother line aviation pipeline fast plug-in. The mother welding car described in the utility model is fixedly connected to the rotary lifting unit, and the rotary lifting unit is detachably connected through the first fixed connector in the connection seat 3 and the second fixed connector on the sub-welding car connection part. The connection method can include a traditional lock form, a bolt form, a plug-in form, a plug-in matching pin form, a plug-in matching bolt form, etc., but is not limited to the above forms.

[0026] For further information, see Figure 2 , 5, 6, 7, the first fixed connector includes positioning columns 5 respectively arranged on both sides of the outside of the fixing seat 4, and the upper surface of the positioning column 5 is provided with a pin hole 6; the second fixed connector includes a positioning square tube 8 arranged on both sides of the upper part of the end of the sub-welding vehicle, the setting position of the positioning square tube 8 matches the positioning column 5, and the upper surface of the positioning square tube 8 is provided with a positioning hole 9 at a position corresponding to the pin hole 6. The first fixed connector and the second fixed connector described in the utility model preferably adopt the form of plug-in matching pins. This structural form can achieve a firm fixation of the two with the weight of the sub-welding vehicle itself, and it also has the characteristics of convenient installation and disassembly.

[0027] For further information, see Figure 1 , 2 The mother welding vehicle comprises a mother welding vehicle chassis 10, driving wheels 11 are respectively arranged around the bottom of the mother welding vehicle chassis 10, a rotary lifting unit is arranged at the middle position of the top of the mother welding vehicle chassis 10, a sub-welding vehicle placement area is arranged on the mother welding vehicle chassis 10 in front of the rotary lifting unit, a mother vehicle battery box 7 and a power control box 12 are respectively arranged on the mother welding vehicle chassis 10 on both sides of the rotary lifting unit, a water tank control cabinet 13 is arranged on the mother welding vehicle chassis 10 behind the rotary lifting unit, water tanks 14 and gas cylinder placement areas for placing gas cylinders are respectively arranged on both sides of the water tank control cabinet 13, and a welding power box 16 is arranged at the rear of the water tank control cabinet 13; a mother welding vehicle power control box assembly 45 is arranged at the front of the sub-welding vehicle placement area, and a busbar aviation pipeline quick plug-in 1 is arranged on the surface of the mother welding vehicle power control box assembly 45. The mother welding vehicle described in the utility model can be moved, which means that it can be moved in the form of tracks, wheels or tracks, and preferably in the form of wheels; the bottom of the mother welding vehicle chassis 10 is provided with a driving wheel 11 for movement, and the components arranged on the top mainly include related devices for driving the driving wheel 11 to move, a rotary lifting unit, and gas source, cooling water and welding power supply for welding, so as to achieve autonomous walking, adjust the position of the sub-welding vehicle and ensure welding.

[0028] For further information, see Figure 1 , 2, 6, 7, the rotary lifting unit includes a rotary platform base 17 connected to the mother welding vehicle chassis 10, a rotary platform 19 with a rotary motor 18 is provided on the top of the rotary platform base 17, a rotating disk 20 is provided on the top of the rotary platform 19, and rotating disk connectors 21 are provided on both sides of the top of the rotating disk 20, a first connecting shaft 22 is provided between the two rotating disk connectors 21, the outside of the first connecting shaft 22 is connected to the main support arm 23 through a bearing, a mounting groove is provided on the top of the main support arm 23, a second connecting shaft 24 is provided between the mounting grooves, and the outside of the second connecting shaft 24 is provided through The bearing is connected to the middle of the L-shaped connecting plate 25, and the two sides of the end of the L-shaped connecting plate 25 are connected to the rear of the rotating disk connecting member 21 through the ball head pull rod 26, and the front end of the L-shaped connecting plate 25 is movably connected to the upper part of the connecting seat 3 through the auxiliary support arm 27; the two sides of the main support arm 23 are connected to the front of the rotating disk connecting member 21 on the same side through their respective corresponding balance springs 28; the inner middle part of the main support arm 23 is connected to the mother welding vehicle chassis 10 through the first master oil cylinder 29, and the inner upper part of the main support arm 23 is movably connected to the lower part of the connecting seat 3 through the second master oil cylinder 30. In the utility model, the slewing platform 19 with the slewing motor 18 and the slewing disk 20 are arranged to drive the sub-welding vehicle to achieve 360° rotation, and the sub-welding vehicle can be driven to rise and fall by arranging the first master oil cylinder 29 and the second master oil cylinder 30; at the same time, in order to ensure the balance of its structure, the utility model is provided with a ball head pull rod 26 and a balance spring 28 to ensure the safe use of the slewing lifting unit.

[0029] For further information, see Figure 1-5The sub-welding vehicle comprises a sub-welding vehicle chassis 31, a mounting base 33 for mounting a welding robot body 32 is provided in the middle of the sub-welding vehicle chassis 31, a frame 34 connected to the sub-welding vehicle chassis 31 is provided at the rear of the mounting base 33, a welding gun cleaning station 35 is provided at the top of the frame 34, a positioning square tube 8 and a sub-welding vehicle folding support unit are provided on both sides of the welding gun cleaning station 35, a sub-welding vehicle power box 36 for driving the sub-welding vehicle to move is provided between the frame 34 and the welding vehicle chassis 31, and a sub-line aviation tube is provided at the lower part of the rear end of the welding gun cleaning station 35 Wire fast plug-in 2; hydraulic stations 37 compatible with the folding support unit of the sub-welding vehicle are provided on the sub-welding vehicle chassis 31 on both sides of the frame 34, wherein a wire feeder 15 connected to the frame 34 is provided on the upper part of the hydraulic station 37 on one side; a welding wire reel 38 connected to the frame 34 is provided on the upper part of the hydraulic station 37 on the other side, and a sub-welding vehicle power control box assembly 39 connected to the sub-welding vehicle power box 36 is provided on the sub-welding vehicle chassis 31 at the front of the mounting base 33; tracks 40 capable of driving the sub-welding vehicle to move are provided on both sides of the bottom of the sub-welding vehicle chassis 31. The sub-welding vehicle described in the utility model can also move autonomously, and it preferably uses tracks 40 for walking. When it is set on the parent welding vehicle, it can ensure that it will not be displaced, so as to achieve the purpose of ensuring the welding quality. The sub-welding vehicle chassis 31 is mainly equipped with a sub-welding vehicle power box 36 for driving the tracks 40 to walk, as well as a welding robot body 32, a wire feeder 15, a welding wire reel 38, etc. for realizing welding. In order to further ensure the welding quality, the utility model is also provided with a hydraulic station 37 compatible with the folding support unit of the sub-welding vehicle, so as to prevent the sub-welding vehicle from shaking during welding.

[0030] For further information, see Figure 1-5 The sub-welding vehicle folding support unit includes a sub-welding vehicle earring oil cylinder 41, the fixed end of which is connected to the vehicle frame 34, and the movable end of which is movably connected to the main ground support 42. The utility model realizes that during welding, the main ground support 42 contacts the ground to form a stable support for the sub-welding vehicle through the extension and retraction of the welding vehicle earring oil cylinder 41, so as to ensure the welding quality.

[0031] For further information, see Figure 1-5 The upper outer side of the main ground support 42 is connected to the fixed end of the auxiliary support cylinder 43, and the movable end of the auxiliary support cylinder 43 is movably connected to the auxiliary ground support 44. The utility model is provided with an auxiliary support unit at the upper outer side of the main ground support 42, that is, through the extension and contraction of the auxiliary support cylinder 43, the auxiliary ground support 44 is in contact with the ground, and cooperates with the main ground support 42 to form a stable support for the welding vehicle to ensure the welding quality.

[0032] The working principle of the utility model is as follows: The utility model includes three welding forms, specifically: (1) a method of welding a main welding vehicle and a sub-welding vehicle in combination. When this welding method is in use, the sub-welding vehicle is fixedly connected to the main welding vehicle through a rotary lifting unit, and the sub-welding vehicle is located in the sub-welding vehicle placement area on the chassis 10 of the main welding vehicle. The driving wheel 11 on the main welding vehicle is used to drive the vehicle to a suitable position, and the welding robot body 32 on the sub-welding vehicle is used to perform welding operations on the workpiece to be welded; wherein the welding robot body 32 can be a combination of a six-axis robot arm and a welding gun to achieve the characteristic of convenient adjustment of the welding angle; (2) a method of welding after the rotary lifting unit lifts the sub-welding vehicle. This welding method is applicable It is used when the position is high and the outside or inside of the welded parts are welded; when it is used, the driving wheel 11 on the mother welding vehicle is used to drive the vehicle to a suitable position, the first master cylinder 29 and the second master cylinder 30 are started, the sub-welding vehicle is raised to a suitable height, the rotary motor 18 is started, and the rotating disk 20 drives the sub-welding vehicle to rotate and rotate to a suitable position; wherein, the welding robot body 32 can be composed of a six-axis robot arm and a welding gun. The above method can realize welding of workpieces to be welded at a higher position, the above method can effectively expand the welding range, and meet the welding conditions at a higher position, and because the sub-welding vehicle is small in size, it can enter a relatively narrow space for welding operations. (3) A method of separate welding of the main welding vehicle and the sub-welding vehicle, which is suitable for use when the main welding vehicle cannot drive to the vicinity of the parts to be welded (for example: in a relatively narrow pipe on the ground, in a relatively narrow pipe in the sky, the main welding vehicle cannot drive into); when in use, the second fixed connector in the sub-welding vehicle is separated from the first fixed connector in the main welding vehicle, but the flexible pipe between the main aviation pipeline quick plug-in and the sub-line aviation pipeline quick plug-in is always connected, and the sub-welding vehicle can autonomously walk to the welding part to be welded through the crawler 40 to perform welding operations. When the main welding vehicle and the sub-welding vehicle described in the utility model are connected, it means that the positioning column 5 is inserted into the positioning square tube 8, and the pin hole 6 and the positioning hole 9 are in the same position, and then the pin is inserted to achieve a fixed connection between the two; when the main welding vehicle and the sub-welding vehicle described in the utility model are separated, it is necessary to make the sub-welding vehicle land smoothly, and then remove the pin column to pull the positioning column 5 out of the positioning square tube 8. When the rotary lifting unit is used for lifting and rotating, the first main oil cylinder 29 and the second main oil cylinder 30 are mainly used for lifting, and the rotary platform 19 of the rotary motor 18 and the rotating disk 20 can drive the sub-welding vehicle to achieve 360° rotation; by setting the ball head pull rod 26 and the balance spring 28, etc., it can be ensured that the main support arm 23 and the auxiliary support arm 27 are in a balanced state, so as to achieve the characteristic of improving the safety of the rotary lifting unit.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A detachable mother-and-child welding vehicle, characterized in that: The parent-child welding vehicle comprises a movable parent welding vehicle, which is connected to a child welding vehicle with a welding unit via a rotary lifting unit; The bottom of the rotary lifting unit is fixedly connected to the mother welding vehicle, and the front end of the rotary lifting unit is detachably connected to the mother welding vehicle connection part and the sub-welding vehicle connection part through the mother welding vehicle connection part. The mother welding vehicle is provided with a mother aviation pipeline quick plug-in (1), and the inner surface of the sub-welding vehicle connection part is provided with a sub-line aviation pipeline quick plug-in (2) that is compatible with the mother aviation pipeline quick plug-in (1); between the mother aviation pipeline quick plug-in (1) and the sub-line aviation pipeline quick plug-in (2), a flexible pipeline for supplying cooling water and protective gas from the mother welding vehicle to the sub-welding vehicle and a welding cable are provided.

2. The detachable mother-child welding vehicle according to claim 1, characterized in that: The female welding vehicle connection portion comprises a connection seat (3), a fixing seat (4) is provided on the top of the connection seat (3), and a first fixing connection member is provided on the fixing seat (4); The sub-welding vehicle connection part is arranged at the tail of the sub-welding vehicle, and comprises a second fixed connector matched with the first fixed connector, and a sub-line aviation pipeline quick plug-in unit matched with the busbar aviation pipeline quick plug-in unit.

3. The detachable mother-child welding vehicle according to claim 2, characterized in that: The first fixed connection member comprises positioning columns (5) respectively arranged on both sides of the outside of the fixing seat (4), and the upper surface of the positioning column (5) is provided with a pin hole (6); The second fixed connection member comprises positioning square tubes (8) arranged on both sides of the upper part of the end of the sub-welding vehicle, the setting position of the positioning square tube (8) matches the positioning column (5), and a positioning hole (9) is provided on the upper surface of the positioning square tube (8) at a position corresponding to the pin hole (6).

4. The detachable mother-child welding vehicle according to claim 1, characterized in that: The mother welding vehicle comprises a mother welding vehicle chassis (10), wherein driving wheels (11) are respectively arranged around the bottom of the mother welding vehicle chassis (10), a rotary lifting unit is arranged at the middle position of the top of the mother welding vehicle chassis (10), a sub-welding vehicle placement area is arranged on the mother welding vehicle chassis (10) in front of the rotary lifting unit, a mother vehicle battery box (7) and a power supply control box (12) are respectively arranged on the mother welding vehicle chassis (10) on both sides of the rotary lifting unit, a water tank control cabinet (13) is arranged on the mother welding vehicle chassis (10) behind the rotary lifting unit, a water tank (14) and a gas cylinder placement area for placing gas cylinders are respectively arranged on both sides of the water tank control cabinet (13), and a welding power supply box (16) is arranged at the rear of the water tank control cabinet (13); A main welding vehicle power supply control box assembly (45) is arranged at the front of the sub-welding vehicle placement area, and a busbar aviation pipeline quick plug-in unit (1) is arranged on the surface of the main welding vehicle power supply control box assembly (45).

5. The detachable mother-child welding vehicle according to claim 2, characterized in that: The rotary lifting unit comprises a rotary platform base (17) connected to the mother welding vehicle chassis (10), A rotating platform (19) with a rotating motor (18) is provided on the top of the rotating platform base (17). A rotating disk (20) is provided on the top of the rotating platform (19). Rotating disk connectors (21) are provided on both sides of the top of the rotating disk (20). A first connecting shaft (22) is provided between the two rotating disk connecting members (21), the outside of the first connecting shaft (22) is connected to the main support arm (23) through a bearing, a mounting groove is provided at the top of the main support arm (23), a second connecting shaft (24) is provided between the mounting grooves, the outside of the second connecting shaft (24) is connected to the middle of the L-shaped connecting plate (25) through a bearing, the two ends of the L-shaped connecting plate (25) are respectively connected to the rear of the rotating disk connecting member (21) through a ball head pull rod (26), and the front end of the L-shaped connecting plate (25) is movably connected to the upper part of the connecting seat (3) through a secondary support arm (27); The two sides of the main support arm (23) are connected to the front of the rotating disk connecting member (21) on the same side through their respective corresponding balance springs (28); the inner middle part of the main support arm (23) is connected to the mother welding vehicle chassis (10) through the first master oil cylinder (29), and the inner upper part of the main support arm (23) is movably connected to the lower part of the connecting seat (3) through the second master oil cylinder (30).

6. The detachable mother-child welding vehicle according to claim 3, characterized in that: The sub-welding vehicle comprises a sub-welding vehicle chassis (31), a mounting base (33) for mounting a welding robot body (32) is provided in the middle of the sub-welding vehicle chassis (31), a frame (34) connected to the sub-welding vehicle chassis (31) is provided at the rear of the mounting base (33), a welding gun cleaning station (35) is provided at the top of the frame (34), a positioning square tube (8) and a sub-welding vehicle folding support unit are provided on both sides of the welding gun cleaning station (35), a sub-welding vehicle power box (36) for driving the sub-welding vehicle to move is provided between the frame (34) and the welding vehicle chassis (31), and a welding gun cleaning station (35) is provided on the top of the frame (34). A sub-line aviation pipeline quick plug-in unit (2) is provided at the lower part of the rear end of the gun station (35); a hydraulic station (37) adapted to the folding support unit of the sub-welding vehicle is provided on the sub-welding vehicle chassis (31) on both sides of the vehicle frame (34), wherein a wire feeder (15) connected to the vehicle frame (34) is provided on the upper part of the hydraulic station (37) on one side; a welding wire reel (38) connected to the vehicle frame (34) is provided on the upper part of the hydraulic station (37) on the other side, and a sub-welding vehicle power supply control box assembly (39) connected to the sub-welding vehicle power supply box (36) is provided on the sub-welding vehicle chassis (31) at the front of the mounting base (33); Tracks (40) capable of driving the sub-welding vehicle to move are arranged on both sides of the bottom of the sub-welding vehicle chassis (31).

7. The detachable mother-and-child welding vehicle according to claim 6, characterized in that: The sub-welding vehicle folding support unit comprises a sub-welding vehicle earring oil cylinder (41), the fixed end of the sub-welding vehicle earring oil cylinder (41) is connected to the vehicle frame (34), and the movable end of the sub-welding vehicle earring oil cylinder (41) is movably connected to the main ground support (42).

8. The detachable mother-and-child welding vehicle according to claim 7, characterized in that: The outer upper part of the main ground support (42) is connected to the fixed end of the auxiliary support cylinder (43), and the movable end of the auxiliary support cylinder (43) is movably connected to the auxiliary ground support (44).

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