A welding fixture for producing power distribution cabinets

Abstract

The present invention relates to a welding fixture for producing power distribution cabinets in the field of welding fixture technology, comprising a base, a first bracket, a first hydraulic cylinder and two second brackets are fixedly connected to the base, a driving end of the first hydraulic cylinder is fixedly connected to a bottom plate, and the bottom plate is connected to a support seat through a plurality of first springs; a moving assembly is arranged on the support seat, and the moving assembly comprises a bidirectional screw rod rotatably mounted on the support seat, two bending rods are threadedly connected to the bidirectional screw rod, and one end of each bending rod is fixedly connected to a first positioning plate; and two supporting columns are fixedly connected to the base. The present invention can realize the one-time completion of the positioning and fixing processing of the upper and lower plates and the two side plates, the upper and lower plates and the two side plates are arranged in a U-shaped shape, and then a plurality of plates can be welded at one time, the welding efficiency is high, and it is conducive to the use of the welding fixture.

Description

Technical Field

[0001] The invention relates to the technical field of welding fixtures, and in particular to a welding fixture for producing power distribution cabinets. Background Art

[0002] With the continuous development of society and the continuous advancement of science and technology, the technology related to welding fixtures is also constantly improving. In the process of manufacturing power distribution cabinets, multiple plates need to be welded. Before welding the plates, they need to be positioned and fixed. At present, welding fixtures are generally used to position and fix the plates.

[0003] At present, when a welding fixture is used to fix and position multiple plates of an electric power distribution cabinet, only two plates can be fixed and positioned first, and then the two plates can be welded. Only then can the other plates be fixed and positioned and welded with the welded plates in turn. The fixing, positioning and welding processes need to be repeated many times, and multiple plates cannot be fixed and positioned at one time, which results in the inability to weld multiple plates at one time. The welding efficiency is low, which is not conducive to the use of welding fixtures. Summary of the invention

[0004] The purpose of the present invention is to solve the following shortcomings in the prior art: the welding fixture currently used cannot fix and position multiple plates at one time, which makes it impossible to weld multiple plates at one time, the welding efficiency is low, and it is not conducive to the use of the welding fixture. A welding fixture for the production of power distribution cabinets is proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A welding fixture for producing a power distribution cabinet, comprising a base, a first bracket, a first hydraulic cylinder and two second brackets are fixedly connected to the base, a driving end of the first hydraulic cylinder is fixedly connected to a bottom plate, and the bottom plate is connected to a support seat through a plurality of first springs;

[0007] The support seat is provided with a moving assembly, and the moving assembly includes a bidirectional screw rod rotatably mounted on the support seat, and two bending rods are threadedly connected to the bidirectional screw rod, and one end of each bending rod is fixedly connected to a first positioning plate;

[0008] Two support columns are fixedly connected to the base, a support block is slidably mounted on each of the support columns, a side plate is fixedly connected to one side of the support block, a sliding assembly is provided on the base, the sliding assembly includes a T-shaped block slidably mounted on the base, a slider is connected to the T-shaped block via a return spring, one of the bending rods is connected to the slider via a telescopic rod, and each of the support columns is connected to the T-shaped block via a hinged rod;

[0009] A second hydraulic cylinder is fixedly mounted on the first bracket, a driving end of the second hydraulic cylinder is fixedly connected to a fixing frame, and an adsorption component is arranged in the fixing frame.

[0010] As a preferred solution, the adsorption assembly includes a porous plate connected to the inner wall of the fixed frame through two second springs, and a plurality of suction cups are fixedly connected to the lower surface of the porous plate.

[0011] As a preferred solution, two airbags are fixedly connected to the upper surface of the bottom plate, a sealing block is fixedly connected to one side surface of each second bracket, a sealing cavity is opened in each sealing block, the sealing cavity is connected to the corresponding airbag through a connecting tube, a sealing plate is slidably connected to the inside of each sealing cavity, a moving rod is fixedly connected to one side of the sealing plate, a third spring is sleeved on the moving rod, one end of the third spring is fixedly connected to the moving rod, and the other end of the third spring is fixedly connected to the inner wall of the sealing cavity.

[0012] As a preferred solution, each of the moving rods is slidably mounted with a splint having a T-shaped cross-section, and a fourth spring is sleeved on the splint, one end of the fourth spring is fixedly connected to the moving rod, and the other end of the fourth spring is fixedly connected to the splint, the lower surface of each of the splints is fixedly connected to a first positioning plate, and the upper surface of each of the support blocks is fixedly connected to a second positioning plate.

[0013] As a preferred solution, two grooves are provided on one side surface of each of the first positioning plates, a moving block is slidably arranged in each of the grooves, a fifth spring is fixedly connected to one side surface of the moving block, the fifth spring is fixedly connected to the inner wall of the groove, an installation groove is provided on the moving block, and a positioning rod is rotatably connected in the installation groove.

[0014] As a preferred solution, an air outlet is provided on the fixed frame, a one-way valve is installed in the air outlet, an arc-shaped hole is provided on the fixed frame, a fixed rod with an L-shaped cross-section is slidably connected to the fixed frame, a limit spring is fixedly connected to the fixed rod, the limit spring is fixedly connected to the upper inner wall of the fixed frame, a sealing ring is fixedly connected to the fixed rod, and the surface of the sealing ring is in contact with the upper inner wall of the fixed frame.

[0015] As a preferred solution, the first bracket is provided with a first slide groove, a second slide groove and two rectangular grooves, a gravity block is slidably connected in the first slide groove, a bending frame is slidably installed in the second slide groove, a convex rod is slidably connected in each of the rectangular grooves, and each of the convex rods is connected to the gravity block through a rotating rod.

[0016] As a preferred solution, two second positioning plates are fixedly connected to the bending frame, and the two second positioning plates are arranged on both sides of the fixing frame.

[0017] As a preferred solution, two pull ropes are fixedly connected to the first bracket, each of the pull ropes is in contact with the corresponding surface of the convex rod, and one end of each pull rope away from the first bracket is fixedly connected to the bending frame.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The lower surfaces of the two side panels fit with the upper surface of the lower panel, and the side surfaces of the two side panels and the two side surfaces of the lower panel are respectively in the same vertical plane. At this time, the surface of each positioning rod fits with the surface of the corresponding side panel, and each clamping plate and the positioning rod can fix and position the two side panels. After the upper panel moves downward, it will fit with the upper surfaces of the two side panels at the same time, so that the positioning and fixing of the upper and lower panels and the two side panels can be completed at one time. The upper and lower panels and the two side panels are arranged in a U-shaped shape, so that multiple panels can be welded at one time, and the welding efficiency is high, which is conducive to the use of welding fixtures.

[0020] As the fixing frame continues to move upward, the fixing rod and the fixing frame will slide relative to each other, and the sealing ring will be separated from the upper inner wall of the fixing frame after moving with the fixing rod, that is, the arc hole is no longer sealed and blocked. At this time, the air inside the fixing frame is connected with the outside air, and the U-shaped cabinet body welded together can automatically fall off. At this time, the cabinet body is located above the two first positioning plates, which is convenient for quickly taking out the cabinet body. There is no need to lift the cabinet body upwards before taking it out. The operation is relatively convenient and quick, which is conducive to improving the efficiency of welding.

[0021] Only the first hydraulic cylinder and the second hydraulic cylinder can be used to fix and position multiple plates, and the cabinet body can also be lifted after welding to facilitate the rapid detachment of the cabinet body, thereby improving the continuity of the welding processing operation on the plates, which is beneficial to improving the production efficiency of the power distribution cabinet, saving energy consumption, and saving production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a front structural schematic diagram of a welding fixture for producing a power distribution cabinet proposed by the present invention;

[0023] Figure 2 This is a partial top view structural schematic diagram of a welding fixture for producing a power distribution cabinet proposed by the present invention;

[0024] Figure 3 This is a partial side structural schematic diagram of a welding fixture for producing a power distribution cabinet proposed by the present invention;

[0025] Figure 4 This is a schematic diagram of the side structure of a welding fixture for producing a power distribution cabinet proposed by the present invention;

[0026] Figure 5 This is a schematic diagram of the top view of a welding fixture for producing a power distribution cabinet proposed by the present invention;

[0027] Figure 6 This is a partial bottom-up structural schematic diagram of a welding fixture for producing a power distribution cabinet proposed by the present invention;

[0028] Figure 7 for Figure 4 A is a schematic diagram of the partially enlarged structure of the middle part;

[0029] Figure 8 for Figure 5 A schematic diagram of the partially enlarged structure of B in the middle;

[0030] Fig. 9 It is a schematic diagram of the front internal structure of the fixing frame and the porous plate in the present invention;

[0031] Fig.10 It is a top view schematic diagram of the internal structure of the fixing frame and the porous plate in the present invention;

[0032] Fig.11 This is a schematic diagram of the front internal structure of the sealing block of the present invention;

[0033] Fig.12 The present invention is a schematic diagram of the partial three-dimensional structure of a welding fixture for producing power distribution cabinets.

[0034] In the figure: 1 base, 2 first hydraulic cylinder, 3 support column, 4 connecting pipe, 5 support block, 6 sealing block, 7 support seat, 8 bending rod, 9 rotating rod, 10 pull rope, 11 second hydraulic cylinder, 12 fixed frame, 13 convex rod, 14 second positioning plate, 15 gravity block, 16 bending frame, 17 suction cup, 18 bottom plate, 19 first positioning plate, 20 clamping plate, 21 fourth spring, 22 moving rod, 23 second bracket, 24 T-shaped block, 25 first spring, 26 first bracket, 27 side plate, 28 first positioning piece, 29 slider, 30 telescopic rod, 31 one-way valve, 32 hinged rod, 33 positioning rod, 34 airbag, 35 second positioning piece, 36 two-way screw rod, 37 fixed rod, 38 second spring, 39 fifth spring, 40 moving block, 41 arc hole, 42 porous plate, 43 sealing ring, 44 sealing plate. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] Reference Figure 1-Figure 12 A welding fixture for producing power distribution cabinets includes a base 1, to which a first bracket 26, a first hydraulic cylinder 2 and two second brackets 23 are fixedly connected, a driving end of the first hydraulic cylinder 2 is fixedly connected to a bottom plate 18, the bottom plate 18 is connected to a support seat 7 through a plurality of first springs 25, a moving assembly is arranged on the support seat 7, the moving assembly includes a bidirectional screw rod 36 rotatably mounted on the support seat 7, two bending rods 8 are threadedly connected to the bidirectional screw rod 36, and one end of each bending rod 8 is fixedly connected to a first positioning plate 19.

[0037] Two support columns 3 are fixedly connected to the base 1, and a support block 5 is slidably installed on each support column 3. A side plate 27 is fixedly connected to one side of the support block 5. A sliding component is provided on the base 1, and the sliding component includes a T-shaped block 24 slidably installed on the base 1. A slider 29 is connected to the T-shaped block 24 through a reset spring, and one of the bending rods 8 is connected to the slider 29 through a telescopic rod 30. Each support column 3 is connected to the T-shaped block 24 through a hinge rod 32. A second hydraulic cylinder 11 is fixedly installed on the first bracket 26, and a driving end of the second hydraulic cylinder 11 is fixedly connected to a fixed frame 12, and an adsorption component is provided in the fixed frame 12.

[0038] An air outlet is provided on the fixed frame 12, and a one-way valve 31 is installed in the air outlet. The adsorption component includes a porous plate 42 connected to the inner wall of the fixed frame 12 through two second springs 38, and a plurality of suction cups 17 are fixedly connected to the lower surface of the porous plate 42. The second hydraulic cylinder 11 drives the fixed frame 12 to move downward, and each porous plate 42 moves downward with the fixed frame 12 at the same time. After each suction cup 17 moves downward, it will gradually fit tightly with the surface of the plate at the top of the support seat 7. As the fixed frame 12 continues to move downward, the porous plate 42 will move upward inside the fixed frame 12. As the porous plate 42 moves upward, the gas inside the fixed frame 12 will be squeezed to be discharged through the air outlet. Under the limiting effect of the one-way valve 31, gas reflux can be effectively avoided, so that each suction cup 17 can be tightly adsorbed to the surface of the upper plate.

[0039] Two air bags 34 are fixedly connected to the upper surface of the bottom plate 18, and a sealing block 6 is fixedly connected to one side surface of each second bracket 23. A sealing cavity is opened in each sealing block 6, and the sealing cavity is connected to the corresponding air bag 34 through a connecting tube 4. A sealing plate 44 is slidably connected to the inside of each sealing cavity, and a moving rod 22 is fixedly connected to one side of the sealing plate 44. A third spring is sleeved on the moving rod 22, one end of the third spring is fixedly connected to the moving rod 22, and the other end of the third spring is fixedly connected to the inner wall of the sealing cavity. A splint 20 with a T-shaped cross section is slidably installed on each moving rod 22, and a fourth spring 21 is sleeved on the splint 20, one end of the fourth spring 21 is fixedly connected to the moving rod 22, and the other end of the fourth spring 21 is fixedly connected to the splint 20.

[0040] The lower surface of each clamping plate 20 is fixedly connected with a first positioning piece 28, and the upper surface of each supporting block 5 is fixedly connected with a second positioning piece 35. The first hydraulic cylinder 2 drives the bottom plate 18 to move upward. At this time, the supporting seat 7 cannot move upward together. During the upward movement of the bottom plate 18, it will slide relative to the supporting seat 7. After each airbag 34 moves upward together with the bottom plate 18, it will be squeezed with the bottom surface of the supporting seat 7. After each airbag 34 is squeezed, the gas inside it will be transported to the inside of the two sealed cavities through the two connecting pipes 4 respectively. The sealing performance of each sealing plate 44 when connected to the inner wall of the sealing cavity is good. After the gas enters the inside of the sealing cavity, it will push the sealing plate 44 to slide in the sealing cavity. At the same time, each moving rod 22 slides relative to the sealing block 6, and the third spring is deformed, thereby driving the two clamping plates 20 to move together, and the distance between the two clamping plates 20 is reduced. When the clamping plate 20 cannot continue to move and the moving rod 22 continues to move, the moving rod 22 will slide relative to the clamping plate 20, and the fourth spring 21 is deformed.

[0041] Two slots are provided on one side surface of each first positioning plate 19, and a moving block 40 is slidably arranged in each slot. A fifth spring 39 is fixedly connected to one side surface of the moving block 40, and the fifth spring 39 is fixedly connected to the inner wall of the slot. A mounting slot is provided on the moving block 40, and a positioning rod 33 is rotatably connected in the mounting slot. When the upper plate moves upward together with the fixed frame 12, it will move upward together with multiple positioning rods 33, so that multiple positioning rods 33 and the corresponding moving blocks 40 respectively rotate relative to each other until each positioning rod 33 is completely located in the corresponding slot, that is, the upper plate is staggered from the positioning rod 33. After the plate moves to the top of the first positioning plate 19, each positioning rod 33 will deflect downward under the action of gravity until it rotates to the initial position.

[0042] An arc-shaped hole 41 is provided on the fixed frame 12, and a fixed rod 37 with an L-shaped cross-section is slidably connected to the fixed frame 12. A limit spring is fixedly connected to the fixed rod 37, and the limit spring is fixedly connected to the upper inner wall of the fixed frame 12. The limit spring can better limit the position of the fixed rod 37. A sealing ring 43 is fixedly connected to the fixed rod 37, and the surface of the sealing ring 43 fits the upper inner wall of the fixed frame 12. A first slide groove, a second slide groove and two rectangular grooves are provided on the first bracket 26. A gravity block 15 is slidably connected in the first slide groove, and a bending frame 16 is slidably installed in the second slide groove. A convex rod 13 is slidably connected in each rectangular groove, and each convex rod 13 is connected to the gravity block 15 through a rotating rod 9.

[0043] Two second positioning plates 14 are fixedly connected to the bending frame 16, and the two second positioning plates 14 are arranged on both sides of the fixed frame 12. Two pull ropes 10 are fixedly connected to the first bracket 26, and each pull rope 10 is in contact with the surface of the corresponding convex rod 13. One end of each pull rope 10 away from the first bracket 26 is fixedly connected to the bending frame 16. After the upper surface of the gravity block 15 is in contact with the upper inner wall of the first slide groove, when the fixing rod 37 continues to move up against the surface of the gravity block 15, the fixing rod 37 will slide relative to the fixing frame 12, and the limit spring will be stretched and deformed. In the initial state, the sealing ring 43 is in contact with the upper inner wall of the fixing frame 12 and the arc hole 41 is sealed and blocked. After the sealing ring 43 moves with the fixing rod 37, it will be detached from the upper inner wall of the fixing frame 12. At this time, the air inside the fixing frame 12 is connected to the outside air, and the U-shaped cabinet welded together can fall off automatically.

[0044] In the present invention, when in use, first, the two upper and lower plates are stacked and placed on the upper surface of the support seat 7. Since the elastic force of each first spring 25 is relatively large, the support seat 7 does not slide relative to the bottom plate 18 at this time. At the same time, the two side plates are placed on the two second brackets 23 respectively, and each side plate is in contact with the corresponding surface of the clamping plate 20, and the side plates are vertically arranged. Then, the servo motor drives the bidirectional screw rod 36 to rotate, and the two bending rods 8 move along the bidirectional screw rod 36 at the same time, and slide relative to the support seat 7, and the distance between the two bending rods 8 is reduced until the smooth surfaces of the two first positioning plates 19 are respectively in contact with the two side surfaces of the upper and lower plates. At this time, the smooth surface of the first positioning plate 19 is in contact with the two side surfaces of the two side plates at the same time.

[0045] During the movement of one of the bending rods 8, since the two ends of the telescopic rod 30 are fixedly connected to the slider 29 and the bending rod 8 respectively, under the transmission action of the telescopic rod 30, the slider 29 and the T-shaped block 24 will slide relative to the base 1. Since the two ends of each hinged rod 32 are respectively hinged to the T-shaped block 24 and the corresponding support column 3, the inclination angle of the two hinged rods 32 changes, and the distance between the two support columns 3 is reduced, and the distance between the two support blocks 5 is reduced at the same time, until the smooth surfaces of the two side plates 27 are respectively in contact with the other two side surfaces of the upper and lower plates. At this time, the contact area between each side plate 27 and the upper plate is very small, and the lower surface of each side plate 27 is in contact with the upper surface of the support seat 7. When the subsequent slider 29 continues to move with the bending rod 8, the slider 29 will slide relative to the T-shaped block 24. Since the two ends of the return spring are respectively fixedly connected to the slider 29 and the T-shaped block 24, the return spring is deformed, and the positioning processing of the upper and lower plates can be achieved.

[0046] Then the first hydraulic cylinder 2 drives the bottom plate 18 to move up, and the support seat 7 will move up together, and the telescopic rod 30 will be stretched and deformed. During the upward movement of the support seat 7, its upper surface will move up together with the lower surface of each side plate 27, and each support block 5 will slide relative to the corresponding support column 3 at the same time, until the upper surfaces of the two support blocks 5 are respectively in contact with the surfaces of the two second brackets 23. At this time, the first hydraulic cylinder 2 stops working, and then the second hydraulic cylinder 11 drives the fixed frame 12 to move down, and each porous plate 42 moves down together with the fixed frame 12 at the same time, and the porous plate 42 passes through the multiple positioning rods 33, and each suction cup 17 is in contact with the multiple positioning rods 33. The circular holes on the orifice plate 42 are connected, and after each suction cup 17 moves down, it will gradually fit tightly against the surface of the plate at the top of the support seat 7. As the fixed frame 12 continues to move down, the porous plate 42 will move up inside the fixed frame 12. The porous plate 42 has a good sealing performance when in contact with the inner wall of the fixed frame 12. As the porous plate 42 moves up, the gas inside the fixed frame 12 will be squeezed to be discharged through the air outlet. Under the limiting effect of the one-way valve 31, gas backflow can be effectively avoided, so that each suction cup 17 can be tightly adsorbed against the surface of the upper plate. At this time, the upper surface of the support seat 7 fits against the lower surface of each side plate 27.

[0047] Then the second hydraulic cylinder 11 drives the fixed frame 12 to move up to the initial height, and the upper plate will move up together with the perforated plate 42. During the movement of the upper plate, it will move up together with the multiple positioning rods 33, so that the multiple positioning rods 33 and the corresponding moving blocks 40 are respectively rotated relative to each other until each positioning rod 33 is completely located in the corresponding slot, that is, the upper plate and the positioning rod 33 are staggered. After the plate moves to the top of the first positioning plate 19, each positioning rod 33 will deflect downward under the action of gravity until it rotates to the initial position, and then the first hydraulic cylinder 2 works, the second hydraulic cylinder 11 is closed, and the first hydraulic cylinder 2 drives the bottom plate 18 to move up. At this time, on the second bracket 23 Under the limiting effect, the support block 5 cannot move up, and then under the limiting effect of the side plate 27, the support seat 7 can be effectively prevented from moving up. During the upward movement of the bottom plate 18, it will slide relative to the support seat 7. Since the two ends of each first spring 25 are respectively fixedly connected to the support seat 7 and the bottom plate 18, each first spring 25 is deformed. Since only the lower surface of each airbag 34 is fixedly connected to the bottom plate 18, each airbag 34 will be squeezed with the bottom surface of the support seat 7 after moving up with the bottom plate 18. The two ends of each connecting tube 4 are respectively fixedly connected to the sealing block 6 and the airbag 34. After each airbag 34 is squeezed, the gas inside it will be transported to the inside of the two sealed cavities through the two connecting tubes 4.

[0048] Each sealing plate 44 has good sealing performance when connected to the inner wall of the sealing cavity. After the gas enters the sealing cavity, it will push the sealing plate 44 to slide in the sealing cavity. At the same time, each moving rod 22 slides relative to the sealing block 6, and the third spring is deformed, thereby driving the two clamping plates 20 to move together, and the distance between the two clamping plates 20 is reduced. During the movement of each clamping plate 20, the two side plates will be pushed to move on the second bracket 23 respectively until the surface of the first positioning piece 28 under each clamping plate 20 is in contact with the surface of the corresponding second positioning piece 35. At this time, the lower surface of the two side plates is in contact with the upper surface of the plate below, and the side surfaces of the two side plates are respectively in the same vertical plane with the two side surfaces of the lower plate. At this time, the surface of each positioning rod 33 is respectively in contact with the surface of the corresponding side plate, and each positioning rod 33 is located between the two side plates, so that the positioning processing of the lower plate and the two side plates can be realized.

[0049] Afterwards, the second hydraulic cylinder 11 drives the fixing frame 12 to move downward again. After the upper plate moves downward, it will fit with the upper surfaces of the two side plates at the same time, so that the positioning and fixing of the upper and lower plates and the two side plates can be completed at one time. The upper and lower plates and the two side plates are arranged in a U-shape, so that multiple plates can be welded at one time. The welding efficiency is high, which is conducive to the use of welding fixtures.

[0050] After the four plates are welded, the second hydraulic cylinder 11 drives the fixed frame 12 to move upward, and the other plates welded to the upper plate will also move upward at the same time. In the initial state, the upper surface of the gravity block 15 is in contact with the lower inner wall of the first slide groove, and the fixed rod 37 is located below the gravity block 15. After the fixed rod 37 moves upward, it will move upward together with the lower surface of the gravity block 15, and the gravity block 15 will move upward in the first slide groove. Since one end of each rotating rod 9 is hinged to the gravity block 15, and the other end is hinged to the corresponding convex rod 13, the distance between the two convex rods 13 is reduced.

[0051] In the initial state, the surface of each inelastic drawstring 10 is in close contact with the surface of the corresponding convex rod 13, and the drawstring 10 is bent. After the two convex rods 13 move, the bending degree of the two drawstrings 10 will gradually decrease, and the bending frame 16 will move down in the second slide groove. After each second positioning plate 14 moves down with the bending frame 16, it will fit with the surface of the upper plate. When the upper surface of the gravity block 15 fits with the upper inner wall of the first slide groove, the fixing rod 37 continues to move up against the surface of the gravity block 15, and the fixing rod 37 will slide relative to the fixing frame 12. The limit spring is stretched and deformed, and the sealing ring 43 is initially in contact with the upper inner wall of the fixed frame 12 and seals the arc hole 41. The sealing ring 43 moves with the fixing rod 37 and then separates from the upper inner wall of the fixed frame 12. At this time, the air inside the fixed frame 12 is connected to the outside air, and the U-shaped cabinet welded together can fall off automatically. At this time, the cabinet is located above the two first positioning plates 19, which is convenient for quickly taking out the cabinet. There is no need to lift the cabinet upwards before taking it out. The operation is relatively convenient and quick, which is beneficial to improving the efficiency of welding.

[0052] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A welding fixture for producing power distribution cabinets, characterized in that: The invention comprises a base (1), to which a first bracket (26), a first hydraulic cylinder (2) and two second brackets (23) are fixedly connected, a driving end of the first hydraulic cylinder (2) is fixedly connected to a bottom plate (18), and the bottom plate (18) is connected to a support seat (7) via a plurality of first springs (25); The support seat (7) is provided with a moving assembly, the moving assembly comprising a bidirectional screw rod (36) rotatably mounted on the support seat (7), two bending rods (8) being threadedly connected to the bidirectional screw rod (36), and one end of each bending rod (8) being fixedly connected to a first positioning plate (19); Two support columns (3) are fixedly connected to the base (1), each of the support columns (3) is slidably mounted with a support block (5), one side of the support block (5) is fixedly connected with a side plate (27), a sliding assembly is provided on the base (1), the sliding assembly comprises a T-shaped block (24) slidably mounted on the base (1), the T-shaped block (24) is connected to a slider (29) via a return spring, one of the bending rods (8) is connected to the slider (29) via a telescopic rod (30), and each of the support columns (3) is connected to the T-shaped block (24) via a hinge rod (32); A second hydraulic cylinder (11) is fixedly mounted on the first bracket (26); a driving end of the second hydraulic cylinder (11) is fixedly connected to a fixed frame (12); an adsorption assembly is arranged in the fixed frame (12); two air bags (34) are fixedly connected to the upper surface of the bottom plate (18); a sealing block (6) is fixedly connected to one side surface of each second bracket (23); a sealing cavity is defined in each sealing block (6); the sealing cavity is connected to the corresponding air bag (34) via a connecting pipe (4); a sealing plate (34) is slidably connected to the interior of each sealing cavity 44), one side of the sealing plate (44) is fixedly connected to a moving rod (22), a third spring is sleeved on the moving rod (22), one end of the third spring is fixedly connected to the moving rod (22), and the other end of the third spring is fixedly connected to the inner wall of the sealing cavity, each of the moving rods (22) is slidably mounted with a clamping plate (20) with a T-shaped cross section, a fourth spring (21) is sleeved on the clamping plate (20), one end of the fourth spring (21) is fixedly connected to the moving rod (22), and the other end of the fourth spring (21) is fixedly connected to the inner wall of the sealing cavity. The clamping plates (20) are fixedly connected, the lower surface of each clamping plate (20) is fixedly connected with a first positioning plate (28), the upper surface of each support block (5) is fixedly connected with a second positioning plate (35), one side surface of each first positioning plate (19) is provided with two slots, a moving block (40) is slidably arranged in each slot, one side surface of the moving block (40) is fixedly connected with a fifth spring (39), the fifth spring (39) is fixedly connected to the inner wall of the slot, and an installation slot is provided on the moving block (40), and the fifth spring (39) is rotatably arranged in the installation slot. A positioning rod (33) is connected, an air outlet is provided on the fixed frame (12), a one-way valve (31) is installed in the air outlet, an arc-shaped hole (41) is provided on the fixed frame (12), a fixing rod (37) with an L-shaped cross section is slidably connected to the fixed frame (12), a limit spring is fixedly connected to the fixing rod (37), the limit spring is fixedly connected to the upper inner wall of the fixing frame (12), a sealing ring (43) is fixedly connected to the fixing rod (37), and the surface of the sealing ring (43) is in contact with the upper inner wall of the fixing frame (12).

2. A welding fixture for producing power distribution cabinets according to claim 1, characterized in that: The adsorption assembly comprises a porous plate (42) connected to the inner wall of the fixed frame (12) via two second springs (38), and a plurality of suction cups (17) are fixedly connected to the lower surface of the porous plate (42).

3. The welding fixture for producing power distribution cabinet according to claim 1, characterized in that: The first bracket (26) is provided with a first slide groove, a second slide groove and two rectangular grooves, a gravity block (15) is slidably connected in the first slide groove, a bending frame (16) is slidably installed in the second slide groove, a convex rod (13) is slidably connected in each of the rectangular grooves, and each of the convex rods (13) is connected to the gravity block (15) via a rotating rod (9).

4. A welding fixture for producing power distribution cabinets according to claim 3, characterized in that: Two second positioning plates (14) are fixedly connected to the bending frame (16), and the two second positioning plates (14) are arranged on both sides of the fixing frame (12).

5. The welding fixture for producing power distribution cabinet according to claim 3 is characterized in that: Two pull ropes (10) are fixedly connected to the first bracket (26), each of the pull ropes (10) is in contact with the surface of the corresponding convex rod (13), and one end of each of the pull ropes (10) away from the first bracket (26) is fixedly connected to the bending frame (16).

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