CN114951939A

CN114951939A - Automatic welding clamp sliding table switching structure suitable for multiple vehicle types

Info

Publication number: CN114951939A
Application number: CN202210752148.5A
Authority: CN
Inventors: 尹安清; 何立新; 刘思珈; 吴明; 方尧金; 刘于瑞
Original assignee: Dongfeng Automobile Co Ltd
Current assignee: Dongfeng Automobile Co Ltd
Priority date: 2022-06-28
Filing date: 2022-06-28
Publication date: 2022-08-30
Anticipated expiration: 2042-06-28
Also published as: CN114951939B

Abstract

The invention provides an automatic welding tongs sliding table switching structure suitable for multiple vehicle types, which comprises a driving system, a turnover system sliding on the driving system, a limiting system limiting the turnover system and an executing system for welding, wherein the executing system is fixedly connected with the turnover system; the limiting system is positioned on one side of the driving system, and the movement of the turnover system is limited through a third limiting block. The invention can be used for automatic welding of vehicle types with different lengths, has the advantages of shorter overall length, small installation space, low manufacturing cost and difficult damage, and can realize multi-point welding of vehicle types with different lengths or widths by utilizing one automatic welding tongs.

Description

Automatic welding clamp sliding table switching structure suitable for multiple vehicle types

Technical Field

The invention relates to the field of tool welding equipment in the automobile manufacturing industry, in particular to an automatic welding clamp sliding table switching structure suitable for multiple vehicle types.

Background

When auto parts or white automobile body assembly welding, a lot of local assistance that are difficult to manual welding are with automatic welding soldering turret, when different motorcycle types collineation were anchor clamps production altogether, because of the motorcycle type part can make the translation change in length or width direction, traditional automatic welding turret design mode is the fixed different soldering turrets of different position designs, or has the pole cylinder to promote the slip table, and the automatic welding turret of installation welds on the slip table. When different welding tongs are designed and fixed at different positions, a plurality of automatic welding tongs are equivalently installed, the space for designing and installing the layout is insufficient, and the cost is high. When a rod cylinder is used, the whole mechanism is too long, and the problem of large occupied space still exists.

At present, a moving mechanism formed by combining a servo motor, a servo drive control box and a screw mechanism is mostly adopted in an automatic welding device, so that an automatic welding clamp moves on a sliding table, and multi-point welding of a part or a vehicle body by the automatic welding clamp is realized. However, the automatic welding apparatus has the following problems: 1. the moving mechanism has large volume and needs larger installation space; 2. the servo motor and the lead screw are used, so that the requirement on installation precision is high, and a plurality of matching parts are provided; 3. when the screw rod moves reversely and stops, the impulse is large, and the screw rod is easy to damage; 4. interference with parts cannot be avoided in the operation process of the automatic welding tongs, and unless a vertical lifting mechanism is added, the weight of an installation space and a moving mechanism can be increased due to the addition of the vertical lifting mechanism, and the moving mechanism with larger weight can damage a lead screw more easily, so that the automatic welding device fails; 5. the cost of the servo motor, the servo drive control box and the screw mechanism is high; 6. the lead screw can not be self-locked, and a braking device is additionally arranged.

Disclosure of Invention

The invention aims to provide an automatic welding device for vehicle types with different lengths, which has the advantages of shorter overall length, small installation space, low manufacturing cost and difficult damage, and can realize multi-point welding of vehicle types with different lengths or widths by using one automatic welding tongs.

In order to achieve the purpose, the invention provides the following technical scheme: a sliding table switching structure of automatic welding tongs suitable for multiple vehicle types comprises a driving system, a turnover system sliding on the driving system, a limit system for limiting the turnover system and an execution system for welding, wherein the execution system is fixedly connected with the turnover system,

the driving system comprises a rodless cylinder, a first limiting block close to one end of the rodless cylinder and a second limiting block close to the other end of the rodless cylinder, and the rodless cylinder drives the overturning system and limits the moving range of the overturning system through the first limiting block and the second limiting block;

the limiting system is positioned on one side of the driving system and comprises a limiting cylinder, a connecting plate and a rocker arm, the connecting plate and the rocker arm are vertically arranged, a cylinder body of the limiting cylinder is hinged to the connecting plate, one end of the rocker arm is hinged to the end portion of a piston rod of the limiting cylinder, a third limiting block is fixed to the other end of the rocker arm, the rocker arm is connected with the connecting plate through a rotating block, one end of the rotating block is fixedly connected with the rocker arm, the other end of the rotating block is hinged to the connecting plate, the rocker arm can rotate around the connecting plate along with the extension of the piston rod of the limiting cylinder, and the third limiting block rotates to a vertical state together to limit the movement of the overturning system; the limiting system is fixed on one side of the driving system through a connecting plate.

Preferably, the limiting systems are provided with one or more limiting systems, and the distance between the third limiting block of each limiting system and the first limiting block corresponds to the length of different vehicle bodies in a vertical state.

Preferably, the rocker arm is L-shaped and comprises a first rocker and a second rocker, one end of the first rocker is hinged to a limiting cylinder piston rod, the other end of the first rocker is fixed to the second rocker, the second rocker extends in the direction away from the connecting plate, the rotating block is fixed to the first rocker, and the third limiting block is fixed to the second rocker and located on one side of a right angle formed by the first rocker and the second rocker.

Preferably, a U-shaped limiting groove with an outward opening is formed in one side, close to the connecting plate, of the first rocker, and a limiting clamping block matched with the limiting groove is fixed on the connecting plate, so that the limiting clamping block is gradually clamped into the limiting groove when the third limiting block rotates to a vertical state, and the rocker is limited from further rotating.

Preferably, the connecting plate is fixed on one side of the driving system through a second mounting plate, and a base plate is further arranged between the connecting plate and the second mounting plate.

Preferably, the driving system comprises a first base, two parallel first mounting plates vertically fixed on the first base, and a guide rail fixed at the tops of the first mounting plates, the rodless cylinder is fixed between the two first mounting plates and is parallel to the first mounting plates, the rodless cylinder is a magnetic couple type rodless cylinder and comprises a cylinder and a magnetic cylinder sliding block slidably sleeved on the cylinder, the overturning system is slidably arranged on the guide rail and is fixedly connected with the cylinder sliding block, and the connecting plate is fixed on the first mounting plates.

Preferably, the turnover system comprises a second base parallel to the first base, a turnover cylinder for driving the execution system to turn over, a connecting square steel perpendicular to the guide rail and a mounting support, a fifth limiting block matched with the first limiting block and the second limiting block is arranged at the two ends of the second base along the length direction of the first base, a fourth limiting block matched with the third limiting block is arranged at one end of the first base along the length direction, a vertical plate parallel to the mounting plate I is arranged on the base II, a turnover cylinder vertical to the vertical plate is arranged above the vertical plate, the turning cylinder is rotationally connected with the vertical plate, one side of the vertical plate, which is far away from the limiting system, is provided with a rotating shaft parallel to the guide rail, the connecting square steel is rotatably connected with the vertical plate through a rotating shaft, a mounting support is fixed at the other end of the connecting square steel, and the upper surface of the connecting square steel is rotatably connected with the end part of a piston rod of the overturning cylinder.

Preferably, the lower surface of the second base is fixedly provided with a connecting block and a guide rail sliding block, the connecting block is fixedly connected with the cylinder sliding block, and the guide rail sliding block is positioned on the guide rail.

Preferably, a buffering limiting base, a limiting plate and a buffer are sequentially arranged between the second base and the connecting square steel from bottom to top.

Preferably, the execution system comprises a copper bar, a copper bar mounting bracket and automatic soldering pliers mounted in a mounting support, the number of the copper bar is two, the two copper bars are respectively supplied with power to the upper end and the lower end of the automatic soldering pliers through air cooling cable connection, an insulating plate is arranged between the two copper bars and fixed together in parallel through screws, the copper bar is fixed on the first base through the copper bar mounting bracket, and the insulating plate is also arranged on a contact surface between the copper bar and the copper bar mounting bracket.

The invention has the beneficial effects that:

1. the structure for controlling the movement and the limiting of the automatic welding tongs comprises a magnetic couple type rodless cylinder, a first limiting block, a second limiting block and a limiting system, so that the multi-point welding of one welding tongs is realized, the magnetic couple type rodless cylinder has the advantages of small size, light weight, no external leakage and the like, the limiting system is positioned on one side of a first base plate, the whole structure is compact, the space is saved, compared with an automatic welding device using a rod cylinder, the length of the whole structure is shortened by more than half, and the installation space of the automatic welding device is greatly reduced.

2. The invention utilizes the limiting system and the first limiting blocks at two ends of the base to limit the movement of the turnover system on the track, is suitable for automatic welding of vehicles with different lengths or widths, controls the limiting system, the turnover system and the rodless cylinder through the PLC control system, has simple structure, convenient installation and difficult damage, and saves the investment of a servo motor, a lead screw, a special servo drive control box control module and the like.

3. According to the automatic welding clamp, the overturning mechanism is arranged, so that the interference with parts in the operation process of the automatic welding clamp is avoided, the rodless cylinder drives the overturning system, the limiting system limits the overturning system, and although the overturning system and the executing system are heavy, the structure is not easy to damage and long in service life.

4. The limiting mechanism can be added according to the welding positions of different vehicle types so as to adapt to the automatic welding of more vehicle bodies with different lengths, and the use is flexible.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of another embodiment of the present invention;

FIG. 3 is a schematic view of the stop system of the present invention;

FIG. 4 is a schematic view of the stop system of the present invention in an operating condition;

FIG. 5 is a schematic view of the welding operation of the first vehicle type according to the present invention;

FIG. 6 is a schematic view of the welding operation of the second vehicle type according to the present invention;

FIG. 7 is a schematic view of the welding operation of the third vehicle type according to the present invention;

reference numerals: the base is 1, the mounting plate is 2, the rodless cylinder 3, the cover plate 4, the guide rail 5, the first limiting block 6, the limiting block base 7, the limiting cylinder 8, the connecting plate 9, the base plate 10, the mounting plate is 11, the third limiting block 12, the rocker arm 13, the first rocker 14, the second rocker 15, the limiting groove 16, the limiting clamping block 17, the rotating block 18, the base is 19, the guide rail slider 20, the connecting block 21, the vertical plate 22, the fifth limiting block 23, the fourth limiting block 24, the turnover cylinder 25, the fixing block 26, the rotating shaft 27, the rotating shaft fixing block 28, the rotating shaft connecting base 29, the connecting square steel 30, the mounting support 31, the mounting plate is 32, the buffering limiting base 33, the limiting plate 34, the buffer 35, the automatic welding tongs 36, the copper bar 37, the copper bar mounting support 38, the insulating plate 39 and the second limiting block 40.

Detailed Description

The invention will be described in further detail with reference to the following figures and specific embodiments.

As shown in fig. 1 and 2, the switching mechanism for the sliding table of the automatic welding tongs applicable to multiple vehicle types comprises a driving system, a turnover system sliding on the driving system, a limiting system limiting the turnover system and an executing system for welding, wherein the executing system is fixedly connected with the turnover system.

The driving system comprises a rectangular base 1, two mounting plates 2 vertically fixed on the base 1, and a guide rail 5 fixed at the top of the mounting plates 2, two mounting plates are arranged in parallel along the length direction of the base 1, a rodless cylinder 3 is arranged between the mounting plates in parallel, the rodless cylinder 3 is installed on the base 1 through mounting seats at two ends, the rodless cylinder 3 comprises a cylinder and a magnetic cylinder slider slidably sleeved on the cylinder, a cover plate 4 is fixed on the rodless cylinder 3 along the length direction, the two ends of the base 1 are respectively provided with a first limiting block 6 and a second limiting block 40 for limiting the sliding range of the turnover system on the guide rail 5, and the first limiting block 6 and the second limiting block 40 are fixed on a limiting block base 7.

The rodless cylinder 3 is a magnetic coupling type rodless cylinder 3, and the principle of the rodless cylinder is that a group of high-strength magnetic rings are arranged on a piston, the magnetic rings on the piston act with another group of cylinder sliding blocks with magnetic rings sleeved outside through a thin-wall cylinder barrel, the two groups of magnetic rings are opposite in magnetism and have strong suction, and when the piston is pushed by air pressure in the cylinder barrel, the magnetic rings in the outer cylinder sliding blocks are influenced by the magnetic rings on the piston under the action of magnetic force to move synchronously.

As shown in fig. 3, the limiting system comprises a limiting cylinder 8 located on one side of a base 1, one end, close to the head, of a cylinder body of the limiting cylinder 8 is hinged to one side of the lower portion of a connecting plate 9 parallel to a mounting plate 2, a rocker arm 13 is arranged at the end portion of a piston rod of the limiting cylinder 8, the rocker arm 13 is of an L-shaped structure formed by a first rocker 14 and a second rocker 15, one end of the first rocker 14 is hinged to the end portion of the piston rod, the other end of the first rocker 14 is fixedly connected with the second rocker 15 into a whole, the second rocker 15 extends in a direction away from the connecting plate 9, a rotating block 18 is arranged in the middle of the first rocker 14, one end of the rotating block 18 is fixedly connected with the first rocker 14, the other end of the rotating block is rotatably connected with the upper portion of the connecting plate 9, and a third limiting block 12 is fixed on the second rocker 15 and located on one side of a right angle formed by the first rocker 14 and the second rocker 15; a U-shaped limiting groove 16 with an outward opening is formed in one side, close to the connecting plate 9, of the first rocker 14, a limiting fixture block 17 matched with the limiting groove 16 is arranged at the top of the connecting plate 9, so that the limiting fixture block 17 is gradually clamped into the limiting groove 16 in the process that the third limiting block 12 rotates to be in a vertical state, the rocker 13 is limited to further rotate, the third limiting block 12 is kept in the vertical state, the connecting plate 9 is fixed on the mounting plate I2 through the mounting plate, a backing plate 10 is further arranged between the connecting plate 9 and the mounting plate I2, the lateral distance between a limiting system and a driving system is increased, the turning system is limited conveniently, when a piston rod of the limiting cylinder 8 extends, the rocker 13 is driven to rotate, the rocker 13 is limited by the rotating block 18 to turn to the top of the connecting plate 9, the limiting fixture block 17 is clamped into the limiting groove 16, and the rotation of the rocker 13 is limited, so that the third stopper 12 maintains a vertical state and is attached to the fourth stopper 24 to restrict the movement of the turnover system.

The overturning system comprises a second base 19 parallel to the first base 1, an overturning cylinder 25 used for driving the executing system to overturn, connecting square steel 30 perpendicular to the guide rail 5 and a mounting support 31, wherein a connecting block 21 and a guide rail sliding block 20 are fixed on the lower surface of the second base 19, the connecting block 21 is fixedly connected with the side surface of the cylinder sliding block through a bolt, and the guide rail sliding block 20 is positioned on the guide rail 5, so that the overturning system can slide on the guide rail 5 along with the cylinder sliding block; the second base 19 is provided with a fifth limiting block 23 matched with the first limiting block 6 and the second limiting block 40 at two ends in the length direction of the first base 1, a fourth limiting block 24 matched with the third limiting block 12 is arranged at one end, close to the second limiting block 40, in the length direction of the first base 1, the fourth limiting block 24 is positioned at one outer side of the fifth limiting block 23, when the turnover system moves to two ends of the first base 1, the fifth limiting block 23 is attached to the first limiting block 6 or the second limiting block 40, and when the limiting cylinder 8 pushes the third limiting block 12 to a vertical position and the turnover system moves to a position where the limiting system is positioned, the fourth limiting block 24 is attached to the third limiting block 12; the second base 19 is provided with a vertical plate 22 parallel to the first mounting plate 2, an overturning cylinder 25 perpendicular to the vertical plate 22 is arranged above the vertical plate 22, the overturning cylinder 25 is rotatably connected with the vertical plate 22 through two L-shaped fixing blocks 26 arranged on one side, close to the limiting system, of the vertical plate 22 in parallel, the overturning cylinder 25 is located between the two fixing blocks 26, and the overturning cylinder 25 can rotate in a plane perpendicular to the length direction of the first base 1. A rotating shaft 27 parallel to the guide rail 5 is arranged on one side, away from the limiting system, of the vertical plate 22, a rotating shaft connecting base 29 is fixed at one end of the connecting square steel 30, the rotating shaft connecting base 29 is rotatably connected with the vertical plate 22 through the rotating shaft 27, a mounting support 31 is fixed at the other end of the connecting square steel 30, and a rotating shaft fixing block 28 is arranged at the end part of the rotating shaft 27 to prevent the rotating shaft 27 from rotating with the connecting square steel 30 when the connecting square steel 30 rotates; a third mounting plate 32 is fixed in the middle of the upper surface of the connecting square steel 30, a support is fixed on the third mounting plate 32, the end of a piston rod of the overturning cylinder 25 is rotatably connected with the support, and the connecting square steel 30 rotates by taking the rotating shaft 27 as the center of a circle along with the expansion and contraction of the piston rod; set gradually buffering spacing base 33, limiting plate 34, buffer 35 between second base 19 and the connection square steel 30 from bottom to top, buffer 35 can play the effect of buffering in the rotatory in-process downwards of connection square steel 30.

The executing system comprises a copper bar 37, a copper bar mounting support 38 and automatic soldering pliers 36 mounted in a mounting support 31, wherein the copper bar 37 is provided with two copper bars, the two copper bars are respectively supplied with power to the upper end and the lower end of the automatic soldering pliers 36 through air cooling cable connection, an insulating plate 39 is arranged between the two copper bars 37 and is fixed together in parallel through screws, the copper bar 37 is fixed on a first base 1 through the copper bar mounting support 38, an insulating plate 39 is also arranged on a contact surface between the copper bar 37 and the copper bar mounting support 38, insulating pipes are further arranged on fixing screws between the copper bars 37 and fixing screws between the copper bar 37 and the copper bar mounting support 38, and the insulating pipes and the insulating plate 39 are used for preventing short circuit of positive and negative electrodes of current or the current from flowing to other equipment through the copper bar mounting support 38.

The working principle of the invention is as follows:

as shown in fig. 5 to 7, this mechanism belongs to the high-order automatic weld welding that artifical unable welded, can weld three kinds of different motorcycle types, fig. 5 is the motorcycle type of length is the shortest, the fifth stopper 23 of upset system laminates with first stopper 6 and welds through automatic soldering turret 36, fig. 6 is the motorcycle type of middle length, the fourth stopper 24 and the laminating of third stopper 12 of upset system weld through automatic soldering turret 36, fig. 7 is the motorcycle type of length is the longest, the fifth stopper 23 and the laminating of second stopper 40 of upset system weld through automatic soldering turret 36. And (3) welding the vehicle models with different lengths, operating the turnover system to the corresponding positions, and then welding through the automatic welding tongs 36.

The vehicle type with the intermediate length welded is taken as an example for explanation.

Under the initial state, the turnover system is driven by the rodless cylinder 3 to move to the foremost end to be attached to the first limiting block 6.

After the welding is prepared, firstly, the vehicle type is determined to be the vehicle type with the middle length, the piston rod of the limiting cylinder 8 is controlled to extend out through the PLC control program, as shown in fig. 4, the rocker arm 13 is pushed to rotate around the connecting plate 9, the third limiting block 12 rotates along with the rotation, the limiting clamping block 17 is gradually clamped into the limiting groove 16 in the rotating process, after the limiting clamping block 17 is completely clamped into the limiting groove 16, the rocker arm 13 is limited to continue to rotate, and at the moment, the third limiting block 12 is in a vertical state and is just at the same height as the fourth limiting block 24 of the turnover system.

The turnover system is driven by the rodless cylinder 3 to operate, so that the fourth limiting block 24 is attached to the third limiting block 12. The piston rod of the turnover cylinder 25 of the turnover system is in a contracted state, and the automatic welding tongs 36 along with the connecting square steel 30 have rotated upward above the whole mechanism around the rotating shaft 27 to avoid interference with the vehicle body.

Move the automobile body to the welding area of automatic electrode holder 36 one side in, stretch out through the piston rod of PLC control program control upset cylinder 25, promote to connect square steel 30 through mounting panel three 32 and rotate downwards round pivot 27, automatic electrode holder 36 rotates to the welding height along with connecting square steel 30 together, be provided with buffer 35 between base two 19 and the connection square steel 30, can play the stable effect of buffering to automatic electrode holder 36 rotation down in-process, automatic electrode holder 36 rotates can begin to weld after welding height.

After welding, the PLC control program controls the automatic welding tongs 36 to open the air cylinder, then the piston rod of the overturning air cylinder 25 contracts, and the automatic welding tongs 36 upwards rotates to the upper part of the whole mechanism to complete welding of the vehicle body with the middle length.

In the production process, if the vehicle type is always the middle-length vehicle type, the welding position of the mechanism is unchanged, namely the fourth limiting block 24 and the third limiting block 12 are always attached, and if the vehicle type is switched, the whole automatic welding mechanism is controlled by a PLC (programmable logic controller) and runs to a short vehicle type or a long vehicle type position to be welded under the driving of the rodless cylinder 3.

The foregoing shows and describes the general principles and principal structural features of the present invention. The present invention is not limited to the above examples, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A sliding table switching structure of automatic welding tongs suitable for multiple vehicle types comprises a driving system, a turnover system sliding on the driving system, a limit system for limiting the turnover system and an execution system for welding, wherein the execution system is fixedly connected with the turnover system,

the driving system comprises a rodless cylinder (3), a first limiting block (6) close to one end of the rodless cylinder (3) and a second limiting block (40) close to the other end of the rodless cylinder (3), the rodless cylinder (3) drives the overturning system, and the moving range of the overturning system is limited by the first limiting block (6) and the second limiting block (40);

the limiting system is positioned on one side of the driving system and comprises a limiting cylinder (8), a connecting plate (9) and a rocker arm (13), the cylinder body of the limiting cylinder (8) is hinged to the connecting plate (9), one end of the rocker arm (13) is hinged to the end portion of a piston rod of the limiting cylinder (8), a third limiting block (12) is fixed to the other end of the rocker arm, the rocker arm (13) is connected with the connecting plate (9) through a rotating block (18), one end of the rotating block (18) is fixedly connected with the rocker arm (13), the other end of the rotating block is hinged to the connecting plate (9), the rocker arm (13) can rotate around the connecting plate (9) along with the extension of the piston rod of the limiting cylinder (8), and the third limiting block (12) rotates to the vertical state together to limit the movement of the turnover system; the limiting system is fixed on one side of the driving system through a connecting plate (9).

2. The automatic welding clamp sliding table switching structure suitable for multiple vehicle types as claimed in claim 1, wherein one or more limiting systems are provided, and the distance between the third limiting block (12) of each limiting system and the first limiting block (6) in the vertical state corresponds to the length of different vehicle bodies.

3. The automatic welding tongs sliding table switching structure applicable to multiple vehicle types as claimed in claim 1, wherein the rocker arm (13) is L-shaped and comprises a first rocker (14) and a second rocker (15), one end of the first rocker (14) is hinged to a piston rod of the limiting cylinder (8), the other end of the first rocker (14) is fixed to the second rocker (15), the second rocker (15) extends in the direction away from the connecting plate (9), the rotating block (18) is fixed to the first rocker (14), and the third limiting block (12) is fixed to the second rocker (15) and located on one side of a right angle formed by the first rocker (14) and the second rocker (15).

4. The automatic welding clamp sliding table switching structure suitable for multiple vehicle types as claimed in claim 3, wherein a U-shaped limiting groove (16) with an outward opening is formed in one side, close to the connecting plate (9), of the first rocker (14), a limiting clamping block (17) matched with the limiting groove (16) is fixed on the connecting plate (9), so that the limiting clamping block (17) is gradually clamped into the limiting groove (16) in the process that the third limiting block (12) rotates to the vertical state, and the rocker arm (13) is limited from further rotating.

5. The automatic welding clamp sliding table switching structure suitable for multiple vehicle types as claimed in claim 1, wherein the connecting plate (9) is fixed on one side of the driving system through a second mounting plate (11), and a base plate (10) is further arranged between the connecting plate (9) and the second mounting plate (11).

6. The automatic welding clamp sliding table switching structure suitable for multiple vehicle types as claimed in any one of claims 1 to 5, wherein the driving system comprises a first base (1), two parallel first mounting plates (2) vertically fixed on the first base (1), and a guide rail (5) fixed on the tops of the first mounting plates (2), the rodless cylinder (3) is fixed between the two first mounting plates (2) and is parallel to the first mounting plates (2), the rodless cylinder (3) is a magnetic couple type rodless cylinder and comprises a cylinder and a magnetic cylinder slider slidably sleeved on the cylinder, the overturning system is slidably arranged on the guide rail (5) and is fixedly connected with the cylinder slider, and the connecting plate (9) is fixed on the first mounting plates (2).

7. The automatic welding clamp sliding table switching structure applicable to multiple vehicle types as claimed in claim 6, wherein the overturning system comprises a second base (19) parallel to the first base (1), an overturning cylinder (25) for driving the executing system to overturn, a connecting square steel (30) perpendicular to the guide rail (5) and a mounting support (31), a fifth limiting block (23) matched with the first limiting block (6) and the second limiting block (40) is arranged at two ends of the second base (19) along the length direction of the first base (1), a fourth limiting block (24) matched with the third limiting block (12) is arranged at one end of the first base (1) along the length direction, a vertical plate (22) parallel to the first mounting plate (2) is arranged on the second base (19), and the overturning cylinder (25) perpendicular to the vertical plate (22) is arranged above the vertical plate (22), upset cylinder (25) rotate with riser (22) and are connected, limiting system one side is kept away from in riser (22) is provided with pivot (27) that are on a parallel with guide rail (5), connect square steel (30) and rotate with riser (22) through pivot (27) and be connected, it is fixed with erection support (31) to connect square steel (30) other end, the tip of connecting square steel (30) upper surface and the piston rod of upset cylinder (25) rotates and is connected.

8. The automatic welding clamp sliding table switching structure suitable for multiple vehicle types as claimed in claim 7, wherein a connecting block (21) and a guide rail sliding block (20) are fixed on the lower surface of the second base (19), the connecting block (21) is fixedly connected with a cylinder sliding block (29), and the guide rail sliding block (20) is located on the guide rail (5).

9. The automatic welding tongs sliding table switching structure suitable for multiple vehicle types as claimed in claim 7, wherein a buffering limiting base (33), a limiting plate (34) and a buffer (35) are sequentially arranged between the second base (19) and the connecting square steel (30) from bottom to top.

10. The automatic soldering turret and sliding table switching structure suitable for multiple vehicle types is characterized in that the executing system comprises a copper bar (37), a copper bar mounting bracket (38) and automatic soldering turrets (36) installed in a mounting support (31), the number of the copper bar (37) is two, the copper bar (37) supplies power to the upper end and the lower end of the automatic soldering turret (36) through air cooling cable connection, an insulating plate (39) is arranged between the two copper bars (37) and fixed in parallel through screws, the copper bar (37) is fixed on the first base (1) through the copper bar mounting bracket (38), and the insulating plate (39) is also arranged on a contact surface between the copper bar (37) and the copper bar mounting bracket (38).