Automobile welding clamp facilitating welding

Abstract

The invention relates to the technical field of welding fixtures, in particular to a convenient-to-weld automobile welding fixture which comprises a base, two sliding grooves are formed in the base, two sliding seats are slidably connected to the base through the sliding grooves, stand columns are fixedly connected to the sliding seats, and a cavity is formed in the base; a clamping mechanism is arranged on the sliding seat, the clamping mechanism is composed of a pneumatic assembly, a control assembly and a deformation assembly, the pneumatic assembly comprises a hollow air cylinder, the stand column is in sealed penetrating sliding connection with the bottom wall of the air cylinder, the control assembly comprises a fixing column, and the fixing column is fixedly connected with the side wall of the air cylinder. The fixing column is rotationally connected with a concave block through a bearing, and sliding sleeves are fixedly connected to the two opposite side walls of the concave block. The clamp has the beneficial effects that the clamp can well clamp parts of different shapes and sizes, clamping deformation is avoided, meanwhile, the application range is wider, and the automation degree is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of welding jigs, and particularly to an automobile welding jig that facilitates welding. Background Art

[0002] Automobiles are one of the common means of transportation. There are various types of automobiles for cargo transportation, passenger transportation, etc. The frames of automobiles are mainly made of metal. During the processing of automobile frames, welding is one of the common processing procedures. Two components are connected together through welding. Welding is a crucial process that directly affects the strength, safety, and overall quality of the automobile body. As an indispensable tooling equipment in the welding process, the performance and design rationality of automobile welding jigs have a key impact on welding quality and production efficiency. Welding jigs are usually used to clamp and fix the components to be welded. After fixation, other components are welded on the components.

[0003] In the prior art, the clamping surfaces of general jigs are generally flat, while the surfaces of automobile components are often uneven. The clamping effect is average and it is easy to loosen after clamping. In order to ensure stable clamping, a greater clamping force is required, and a greater clamping force may cause component deformation. When using special jigs, different clamps need to be frequently used during the processing of different components, which is inconvenient to use. Moreover, the existing jigs cannot move after the components are clamped, which is also inconvenient for subsequent operations. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems in the prior art, and to propose an automobile welding jig that facilitates welding.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions: An automobile welding jig that facilitates welding, including a base. The base is provided with two sliding grooves. The base is slidably connected with two sliding seats through the sliding grooves. A column is fixedly connected to the sliding seat. A cavity is provided in the base; A clamping mechanism is arranged on the sliding seat. The clamping mechanism is composed of a pneumatic component, a control component, and a deformation component. The pneumatic component includes a hollow air cylinder. The column is hermetically and slidably connected through the bottom wall of the air cylinder. The control component includes a fixed column. The fixed column is fixedly connected to the side wall of the air cylinder. The fixed column is rotatably connected with a concave block through a bearing. Both opposite side walls of the concave block are fixedly connected with sliding sleeves. A middle block is hermetically slidably connected in the sliding sleeve. Two sliding columns penetrate and are slidably connected through the concave block. Conductive blocks are fixedly connected to the side walls of the sliding columns and the middle block on the opposite side. The deformation component includes a fixed cylinder with a concave cross-section. The fixed cylinder is fixedly connected to the corresponding sliding column.

[0006] An adjustment mechanism is provided inside the base. The adjustment mechanism is composed of a sliding component and a linkage component. The sliding component includes two sixth tubes, and the sixth tubes are fixedly connected to the base through penetration. The linkage component includes a rotating shaft, and the rotating shaft is rotatably connected to the inner top wall of the cavity through a bearing.

[0007] Furthermore, the deformation component further includes an elastic balloon. The elastic balloon is fixedly connected to the fixed cylinder. The elastic balloon is communicated with the fixed cylinder and both of them are filled with steel balls inside. An electromagnet is fixedly connected to the inner wall of the fixed cylinder, and the electromagnet is electrically connected to the corresponding conductive block through a wire.

[0008] Furthermore, the pneumatic component further includes a hollow block. The hollow block is hermetically and slidably connected inside the air cylinder. The column is fixedly connected to the lower surface of the hollow block. A third tube and a plurality of fourth tubes are fixedly connected to the top wall of the hollow block through penetration. A first solenoid valve is arranged inside the third tube, and a second solenoid valve is arranged inside the fourth tube. The first solenoid valve and the second solenoid valve are electrically connected to the conductive block through a wire. A plurality of third springs are fixedly connected between the hollow block and the inner top wall of the air cylinder. A second tube is fixedly connected to the top wall of the air cylinder through penetration. A hose is fixedly connected between the second tube and the third tube. The second tube is fixedly connected to the fixed column through penetration. The second tube is rotatably connected to the concave block through a bearing and extends into its interior.

[0009] Furthermore, the control component further includes a plurality of first tubes. The first tubes are fixedly connected to and communicate the concave block and the sliding sleeve through penetration. A first spring is fixedly connected between the intermediate block and the sliding sleeve. A second spring is fixedly connected between the intermediate block and the sliding column.

[0010] Furthermore, the sixth tube communicates the corresponding sliding groove with the cavity. The sliding component further includes two seventh tubes. The seventh tubes are hermetically and slidably connected to the corresponding sixth tubes. The seventh tubes are fixedly connected to and penetrate through the sliding seat, the column, and the hollow block and extend into the hollow block. A fifth tube is fixedly connected to the base through penetration. The fifth tube communicates the cavity with the outside.

[0011] Furthermore, the linkage component further includes a plurality of sliding holes. The sliding holes communicate the corresponding sliding grooves with the cavity. A sealing block is hermetically and slidably connected inside each sliding hole. Two sealing blocks located on the same straight line are commonly fixedly connected to a rack. The rack meshes with a gear. The rack is fixedly connected to the side wall of the corresponding sliding seat.

[0012] Furthermore, a plurality of ninth pipes and tenth pipes are fixedly connected to the side walls on the opposite sides of the two air cylinders. The ninth pipes and the tenth pipes communicate the air cylinders with the outside. The base is fixedly connected through the eighth pipe, and the eighth pipe communicates the cavity with the outside. Third solenoid valves are arranged in both the eighth pipe and the ninth pipe.

[0013] Furthermore, scale lines are engraved on the upper surface of the base.

[0014] Furthermore, there are two protrusions provided on the base.

[0015] Furthermore, both the middle block and the sliding column are made of insulating materials.

[0016] The present invention has the following advantages: 1. During the fixing of components, the elastic balloon filled with steel balls contacts the surface of the component. The elastic balloon will deform according to the shape of the component surface. After complete fitting, when the electromagnet is energized, the steel balls will tightly attract each other, thus maintaining this shape. That is, the elastic balloon can automatically change the clamping surface according to the different shapes of the clamped components, ensuring stable clamping while avoiding component deformation. 2. Through the deformation of the elastic balloon, the fixture can stably clamp components of different shapes. That is, only one fixture is required to complete the welding clamping of different components, greatly reducing the equipment cost. At the same time, during the processing of different components, there is no need to frequently replace the fixture, making it more convenient to use. 3. After clamping is completed, the elastic balloon will fix this shape for clamping. After clamping is completed, the component will be automatically lifted, making the automation degree of the fixture higher. 4. After the component clamping is completed, air is pumped into the air cylinder, which will cause the air cylinder to lift. The lifting of the air cylinder will lift the clamped component. After the component is lifted, the base releases the limit on the rotation of the concave block. At this time, the concave block can rotate freely, so that the clamped component can rotate freely, making it more convenient to use during welding processing. 5. By sliding the sliding seat, the distance between the two air cylinders can be changed. The change in the distance between the air cylinders enables the fixture to be applicable to the clamping of components of different sizes, greatly improving the application range of the fixture. 6. During the process of releasing the clamping after welding, the gas filled in the air cylinder is released, discharged from the ninth pipe, and inhaled from the tenth pipe, thus forming an air flow during the process of releasing the clamping after welding. The air flow cools the welded components. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of an automotive welding fixture convenient for welding proposed by the present invention; Figure 2 Schematic diagram of the internal structure under the longitudinal section of an automobile welding fixture convenient for welding according to the present invention; Figure 3 is Figure 2 the enlarged view of part A in Figure 4 is Figure 2 the enlarged view of part B in Figure 5 Schematic diagram of the internal structure under another longitudinal section of an automobile welding fixture convenient for welding according to the present invention; Figure 6 Schematic diagram of the internal structure under the transverse section of an automobile welding fixture convenient for welding according to the present invention; Figure 7 Schematic diagram of the internal structure under another transverse section of an automobile welding fixture convenient for welding according to the present invention; Figure 8 Schematic diagram of the internal structure of the air cylinder in an automobile welding fixture convenient for welding according to the present invention.

[0018] In the figure: 1 base, 2 sliding groove, 3 sliding seat, 4 column, 5 air cylinder, 6 hollow block, 7 fixed column, 8 concave block, 9 sliding sleeve, 10 intermediate block, 11 first spring, 12 sliding column, 13 second spring, 14 fixed cylinder, 15 elastic balloon, 16 steel ball, 17 electromagnet, 18 conductive block, 19 first pipe, 20 second pipe, 21 third pipe, 22 hose, 23 third spring, 24 fourth pipe, 25 first solenoid valve, 26 second solenoid valve, 27 cavity, 28 fifth pipe, 29 sixth pipe, 30 seventh pipe, 31 eighth pipe, 32 rotating shaft, 33 gear, 34 sliding hole, 35 rack, 36 sealing block, 37 ninth pipe, 38 tenth pipe, 39 third solenoid valve. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Referring to Figure 1-8 , an automobile welding fixture convenient for welding includes a base 1. Two sliding grooves 2 are opened in the base 1. The base 1 is slidably connected with two sliding seats 3 through the sliding grooves 2. A column 4 is fixedly connected to the sliding seat 3. A cavity 27 is opened in the base 1; The sliding seat 3 is provided with a clamping mechanism, which is composed of a pneumatic component, a control component and a deformation component. The pneumatic component includes a hollow air cylinder 5, and the column 4 is hermetically and slidably connected through the bottom wall of the air cylinder 5. The control component includes a fixed column 7, and the fixed column 7 is fixedly connected to the side wall of the air cylinder 5. The fixed column 7 is rotatably connected with a concave block 8 through a bearing. A damping washer is arranged at the rotational connection between the fixed column 7 and the concave block 8, so that there is a certain frictional force between the two during rotation, so that the concave block 8 will only rotate when a relatively large force is actively applied to the concave block 8. Both opposite side walls of the concave block 8 are fixedly connected with sliding sleeves 9. A middle block 10 is hermetically and slidably connected in the sliding sleeve 9. A hole is opened at the bottom of the sliding sleeve 9, so that the part between the middle block 10 and the concave block 8 is communicated with the outside, and thus the hermetically sliding middle block 10 can slide up and down freely. Two sliding columns 12 are slidably connected through the concave block 8. Conductive blocks 18 are fixedly connected to the side walls of the sliding columns 12 and the middle block 10 on the opposite side. The deformation component includes a fixed cylinder 14 with a concave cross-section, and the fixed cylinder 14 is fixedly connected to the corresponding sliding column 12.

[0021] An adjustment mechanism is arranged in the base 1, and the adjustment mechanism is composed of a sliding component and a linkage component. The sliding component includes two sixth pipes 29, and the sixth pipes 29 are fixedly connected through the base 1. The linkage component includes a rotating shaft 32, and the rotating shaft 32 is rotatably connected to the inner top wall of the cavity 27 through a bearing.

[0022] The deformation component further includes an elastic balloon 15. The elastic balloon 15 is fixedly connected to the fixed cylinder 14. The elastic balloon 15 communicates with the fixed cylinder 14 and both of them are filled with steel balls 16. The diameter of the steel balls 16 is between 5 mm and 10 mm. The smaller the diameter of the steel balls 16, the flatter the irregular surface formed. An electromagnet 17 is fixedly connected to the inner wall of the fixed cylinder 14. The electromagnet 17 is electrically connected to the corresponding conductive block 18 through a wire. When the conductive block 18 makes contact, the electromagnet 17 is energized. After the electromagnet 17 is energized, a magnetic force is generated. The steel balls 16 will be magnetized under the magnetic field of the electromagnet 17. The magnetized steel balls 16 will attract each other, so that their overall shape is fixed. After air enters the sliding sleeve 9, the intermediate block 10 will move, driving the sliding column 12, the fixed cylinder 14, and the elastic balloon 15 to approach the component until the elastic balloon 15 contacts the component. Since the elastic balloon 15 is filled with steel balls 16, after the elastic balloon 15 contacts the component, it will deform according to the surface of the component, and the deformed surface fits closely with the surface of the component. As the intermediate block 10 continues to move, at this time, the elastic balloon 15 is in contact with the surface of the component. At this time, the sliding column 12 cannot move any further. Only by pumping air will the intermediate block 10 continue to move and compress the second spring 13, causing the intermediate block 10 to approach the sliding column 12 until the conductive block 18 makes contact. After the conductive block 18 makes contact, when the electromagnet 17 is energized, a magnetic field is generated. Under the magnetic field of the electromagnet 17, the steel balls 16 are magnetized, so that the steel balls 16 attract each other, and then the overall shape of the steel balls 16 is fixed, ensuring that the elastic balloon 15 fits closely with the surface of the component. Thus, the elastic balloon 15 can automatically change its own shape according to the shape of the surface of the clamped component, so that the fixture can clamp different-shaped components well and avoid deformation.

[0023] The pneumatic component further includes a hollow block 6 which is hermetically and slidably connected within the air cylinder 5. The upright column 4 is fixedly connected to the lower surface of the hollow block 6. A third pipe 21 and a plurality of fourth pipes 24 are fixedly connected through the top wall of the hollow block 6. A first electromagnetic valve 25 is arranged within the third pipe 21. The first electromagnetic valve 25 is a normally open electromagnetic valve and closes when powered on. A second electromagnetic valve 26 is arranged within the fourth pipe 24. The second electromagnetic valve 26 is a normally closed electromagnetic valve and opens when powered on. The first electromagnetic valve 25 and the second electromagnetic valve 26 are electrically connected to the conductive blocks 18 through wires. After the two conductive blocks 18 come into contact, the first electromagnetic valve 25 and the second electromagnetic valve 26 can be powered on. A plurality of third springs 23 are fixedly connected between the hollow block 6 and the inner top wall of the air cylinder 5. A second pipe 20 is fixedly connected through the top wall of the air cylinder 5. A hose 22 is fixedly connected between the second pipe 20 and the third pipe 21. The arrangement of the hose 22 ensures the communication state between the second pipe 20 and the third pipe 21 regardless of the position of the hollow block 6. The second pipe 20 is fixedly connected through the fixed column 7. The second pipe 20 is rotatably connected to the concave block 8 through a bearing and extends into its interior. The bearing between the second pipe 20 and the concave block 8 is a sealed bearing to avoid leakage at the bearing connection. After the conductive blocks 18 come into contact, the first electromagnetic valve 25 is also synchronously powered off and the second electromagnetic valve 26 is powered on. At this time, when air continues to be pumped in, it will not enter the third pipe 21 but enter above the hollow block 6 through the fourth pipe 24. After the air enters above the hollow block 6, the air cylinder 5 will rise. When it is observed that the air cylinder 5 starts to rise, it indicates that the clamping is completed. After the clamping is completed, the component can be automatically lifted, greatly improving the automation degree of the fixture. And after the component is lifted, the limit of the base 1 on the concave block 8 is released, so that the clamped component can rotate freely, making it more convenient to perform welding operations on various parts of the component and more convenient to use.

[0024] The control component further includes a plurality of first pipes 19 which are fixedly connected through the concave block 8 and the sliding sleeve 9 to connect the two. A first spring 11 is fixedly connected between the intermediate block 10 and the sliding sleeve 9. A second spring 13 is fixedly connected between the intermediate block 10 and the sliding column 12.

[0025] The sixth pipe 29 connects the corresponding sliding groove 2 with the cavity 27. The sliding component further includes two seventh pipes 30 which are hermetically and slidably connected to the corresponding sixth pipes 29. The seventh pipes 30 are fixedly connected through the sliding seat 3, the upright column 4, and the hollow block 6 and extend into the hollow block 6. The base 1 is fixedly connected through a fifth pipe 28. The fifth pipe 28 connects the cavity 27 with the outside. A quick-connect joint is arranged on the fifth pipe 28. An external air compressor can be connected to the fifth pipe 28 through the quick-connect joint.

[0026] The linkage assembly further includes a plurality of sliding holes 34, the sliding holes 34 communicate the corresponding sliding grooves 2 with the cavity 27, and a sealing block 36 is hermetically and slidably connected in each sliding hole 34. Two sealing blocks 36 located on the same straight line are fixedly connected to a rack 35 (as Figure 7 shown), the two racks 35 are symmetric about the center point of the gear 33, the rack 35 meshes with the gear 33, and the rack 35 is fixedly connected to the side wall of the corresponding sliding seat 3. Through the meshing of the rack 35 and the gear 33, when one sliding seat 3 is adjusted, the other sliding seat 3 will move in the opposite direction accordingly, so as to ensure that the two sliding seats 3 always maintain a symmetrical state. According to the size of the clamping part required, the position of the sliding seat 3 is adjusted. When one sliding seat 3 is moved, at this time, since the eighth pipe 31 is in an open state, the sealing block 36 can move freely. The sliding seat 3 will drive the rack 35 to move, and the movement of the rack 35 drives the gear 33 to rotate, so that the other rack 35 drives the other sliding seat 3 to move synchronously in the opposite direction. According to the scale line on the base 1, the position of the sliding seat 3 is accurately adjusted, so that the fixture can be suitable for welding clamping of different-sized parts, greatly improving the applicability of the fixture.

[0027] On the opposite side walls of the two air cylinders 5, a plurality of ninth pipes 37 and tenth pipes 38 are fixedly connected. The ninth pipes 37 are inclined downward and the tenth pipes 38 are inclined upward (as Figure 8 shown), the ninth pipes 37 communicate the upper part of the hollow block 6 with the outside, the tenth pipes 38 communicate the lower part of the hollow block 6 with the outside, the ninth pipes 37 and the tenth pipes 38 communicate the air cylinders 5 with the outside, the base 1 is fixedly connected through the eighth pipe 31, and the eighth pipe 31 communicates the cavity 27 with the outside. A third solenoid valve 39 is arranged in both the eighth pipe 31 and the ninth pipe 37. The third solenoid valve 39 is a normally open solenoid valve, which is closed when energized and is connected to the main circuit of the equipment. When the equipment is started, the third solenoid valve 39 is energized and closed. When the equipment is powered off, the third solenoid valve 39 is powered off synchronously. After welding is completed, the equipment is powered off, the third solenoid valve 39 is powered off and opened. Under the elastic force of the third spring 23, the air cylinder 5 slides down and resets. At this time, the air above the air cylinder 5 will be pumped out through the ninth pipe 37 and blown to the part. At the same time, when the air cylinder 5 slides down, it will also inhale air into the air cylinder 5 through the tenth pipe 38. The air pumping out through the ninth pipe 37 and the air inhalation through the tenth pipe 38 form an air flow to cool the welded part, which can quickly cool the part and avoid scalding caused by accidentally touching the welding area.

[0028] The upper surface of the base 1 is engraved with scale lines (as Figure 1 shown). Through the scale lines, the position between the two air cylinders 5 can be accurately adjusted, so as to ensure better clamping effect when clamping different-sized parts, and at the same time avoid wasting debugging time by multiple attempts.

[0029] There are two protrusions on the base 1 (asFigure 1 As shown in the figure, one sliding sleeve 9 contacts the protrusion, and the concave block 8 is limited by the protrusion, so as to ensure that the clamped part remains horizontal.

[0030] The middle block 10 and the sliding column 12 are both made of insulating materials. The insulating middle block 10 and sliding column 12 prevent abnormal conduction of the conductive block 18.

[0031] In the present invention, first, according to the size of the part to be clamped, the position of the sliding seat 3 is adjusted. When moving one sliding seat 3, since the eighth pipe 31 is in an open state at this time, the sealing block 36 can move freely, and the sliding seat 3 will drive the rack 35 to move. The movement of the rack 35 drives the gear 33 to rotate, so that the other rack 35 drives the other sliding seat 3 to move synchronously in the opposite direction. According to the scale line on the base 1, the position of the sliding seat 3 is accurately adjusted. After the adjustment is completed, the part to be clamped is placed in the concave block 8, and the device power supply is turned on. At the same time, air is pumped into the fifth pipe 28 through an external air compressor. After the device power supply is turned on, the third solenoid valve 39 is energized and closed, so that the eighth pipe 31 and the ninth pipe 37 are closed.

[0032] Air enters the cavity 27 through the fifth pipe 28, and then enters the hollow block 6 through the sixth pipe 29 and the seventh pipe 30. At this time, since the first solenoid valve 25 is in an open state and the second solenoid valve 26 is in a closed state, the air will enter the third pipe 21, and then enter the concave block 8 through the hose 22 and the second pipe 20, and then enter the sliding sleeve 9 through the first pipe 19. After the air enters the sliding sleeve 9, it will cause the middle block 10 to move, so as to drive the sliding column 12, the fixed cylinder 14, and the elastic balloon 15 to approach the part until the elastic balloon 15 contacts the part. Since the elastic balloon 15 is filled with steel balls 16, after the elastic balloon 15 contacts the part, it will deform according to the surface of the part, and the deformed surface fits closely with the surface of the part.

[0033] As the middle block 10 continues to move, at this time the elastic balloons 15 all contact the surface of the part, and at this time the sliding column 12 can no longer move. When air is only pumped in, it will cause the middle block 10 to continue to move and compress the second spring 13, so that the middle block 10 approaches the sliding column 12 until the conductive block 18 contacts. After the conductive block 18 contacts, the electromagnet 17 is energized and will generate magnetism. Under the magnetic field of the electromagnet 17, the steel balls 16 are magnetized, so that the steel balls 16 attract each other, and then the overall shape of the steel balls 16 is fixed, ensuring that the elastic balloon 15 fits closely with the surface of the part and clamping it.

[0034] After the conductive block 18 makes contact, it will also synchronously cause the first solenoid valve 25 to be powered off and closed, and the second solenoid valve 26 to be powered on and opened. At this time, if air continues to be pumped in, it will not enter the third pipe 21, but will enter above the hollow block 6 through the fourth pipe 24. After the air enters above the hollow block 6, it will cause the air cylinder 5 to rise. When it is observed that the air cylinder 5 starts to rise, it indicates that the clamping is completed. After the clamped component rises to an appropriate height, the external air compressor can be turned off to stop pumping air. At this time, the component can be welded.

[0035] After the welding is completed, the device is powered off, and the third solenoid valve 39 is powered off and opened, so that the eighth pipe 31 and the ninth pipe 37 are opened. At this time, the air in the sliding sleeve 9 is discharged, causing the intermediate block 10 to separate from the sliding column 12, the conductive block 18 to separate, the electromagnet 17 to be powered off, and the magnetism of the steel ball 16 to disappear. The elastic balloon 15 then returns to its original state. At the same time, under the elastic force of the third spring 23, the air cylinder 5 slides down and resets. At this time, the air above the air cylinder 5 will be pumped out through the ninth pipe 37 and blown towards the component. At the same time, when the air cylinder 5 slides down, it will also suck air into the air cylinder 5 through the tenth pipe 38. The air pumped out through the ninth pipe 37 and the air sucked in through the tenth pipe 38 form an air flow to cool the welded component.

[0036] After resetting, remove the welded component and place the next component to be welded, and continue to operate according to the above steps.

[0037] As described above, only the preferred specific embodiments of the present invention are provided, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered by the protection scope of the present invention.

Claims

1. An automobile welding fixture for facilitating welding, comprising a base (1), characterized in that: The base (1) is provided with two sliding grooves (2), the base (1) is slidably connected to two sliding seats (3) via the sliding grooves (2), a column (4) is fixedly connected to the sliding seat (3), and a cavity (27) is provided inside the base (1); The sliding seat (3) is provided with a clamping mechanism, which is composed of a pneumatic component, a control component and a deformation component. The pneumatic component includes a hollow gas cylinder (5), the upright column (4) is sealed and penetrated with the bottom wall of the gas cylinder (5) for sliding connection, the control component includes a fixed column (7), the fixed column (7) is fixedly connected to the side wall of the gas cylinder (5), the fixed column (7) is rotatably connected to a concave block (8) through a bearing, the two opposite side walls of the concave block (8) are fixedly connected to a sliding sleeve (9), the sliding sleeve (9) is sealed and slidably connected to an intermediate block (10), the concave block (8) is penetrated and slidably connected to two sliding columns (12), the side wall of the sliding column (12) on the side opposite to the intermediate block (10) is fixedly connected to a conductive block (18), and the deformation component includes a fixed cylinder (14) with a concave cross-section, and the fixed cylinder (14) is fixedly connected to the corresponding sliding column (12); An adjustment mechanism is provided in the base (1), the adjustment mechanism being composed of a sliding assembly and a linkage assembly, the sliding assembly comprising two sixth tubes (29), the sixth tubes (29) penetrating and fixedly connected to the base (1), the linkage assembly comprising a rotating shaft (32), the rotating shaft (32) being rotatably connected to the top wall of the cavity (27) via a bearing.

2. The automobile welding fixture for facilitating welding according to claim 1 is characterized in that: The deformation assembly further comprises an elastic balloon (15), the elastic balloon (15) being fixedly connected to the fixed cylinder (14), the elastic balloon (15) being in communication with the fixed cylinder (14) and both of which are filled with steel balls (16), an electromagnet (17) being fixedly connected to the inner wall of the fixed cylinder (14), and the electromagnet (17) being electrically connected to the corresponding conductive block (18) via a wire.

3. The automobile welding fixture for facilitating welding according to claim 1 is characterized in that: The pneumatic assembly further comprises a hollow block (6), the hollow block (6) being sealingly and slidably connected in the air cylinder (5), the upright column (4) being fixedly connected to the lower surface of the hollow block (6), a third tube (21) and a plurality of fourth tubes (24) being fixedly connected through the top wall of the hollow block (6), a first solenoid valve (25) being arranged in the third tube (21), a second solenoid valve (26) being arranged in the fourth tube (24), the first solenoid valve (25) and the second solenoid valve (26) being electrically connected to the conductive block (18) through a wire, a plurality of third springs (23) being fixedly connected between the hollow block (6) and the top wall of the air cylinder (5), a second tube (20) being fixedly connected through the top wall of the air cylinder (5), a hose (22) being fixedly connected between the second tube (20) and the third tube (21), the second tube (20) being fixedly connected through the fixed column (7), and the second tube (20) being rotatably connected to the concave block (8) through a bearing and extending into the interior thereof.

4. The automobile welding fixture for facilitating welding according to claim 1 is characterized in that: The control assembly further comprises a plurality of first tubes (19), wherein the first tubes (19) are fixedly connected to the concave block (8) and the sliding sleeve (9) and connect the two, a first spring (11) is fixedly connected between the intermediate block (10) and the sliding sleeve (9), and a second spring (13) is fixedly connected between the intermediate block (10) and the sliding column (12).

5. The automobile welding fixture for facilitating welding according to claim 1 is characterized in that: The sixth tube (29) connects the corresponding sliding groove (2) with the cavity (27). The sliding assembly further comprises two seventh tubes (30). The seventh tubes (30) are sealingly and slidingly connected to the corresponding sixth tubes (29). The seventh tubes (30) are fixedly connected to the sliding seat (3), the column (4) and the hollow block (6) and extend into the hollow block (6). The base (1) is fixedly connected with a fifth tube (28). The fifth tube (28) connects the cavity (27) with the outside.

6. The automobile welding fixture for facilitating welding according to claim 1, characterized in that: The linkage assembly further comprises a plurality of sliding holes (34), wherein the sliding holes (34) connect the corresponding sliding grooves (2) with the cavities (27), and each of the sliding holes (34) is sealed and slidably connected with a sealing block (36), and two sealing blocks (36) located on the same straight line are fixedly connected with a rack (35) together, and the rack (35) meshes with the gear (33), and the rack (35) is fixedly connected with the corresponding side wall of the sliding seat (3).

7. The automobile welding fixture for facilitating welding according to claim 1 is characterized in that: A plurality of ninth tubes (37) and tenth tubes (38) are fixedly connected to the side walls on opposite sides of the two gas cylinders (5), and the ninth tubes (37) and the tenth tubes (38) connect the gas cylinders (5) with the outside. An eighth tube (31) is fixedly connected through the base (1), and the eighth tube (31) connects the cavity (27) with the outside. A third solenoid valve (39) is arranged in each of the eighth tube (31) and the ninth tube (37).

8. The automobile welding fixture for facilitating welding according to claim 1 is characterized in that: The upper surface of the base (1) is engraved with scale lines.

9. The automobile welding fixture for facilitating welding according to claim 1, characterized in that: Two protrusions are provided on the base (1).

10. The automobile welding fixture for facilitating welding according to claim 1, characterized in that: The intermediate block (10) and the sliding column (12) are both made of insulating material.

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