Automatic welding clamp device for boundary beam inner plate

Abstract

The invention discloses an automatic welding clamp device for an edge beam inner plate, and relates to the technical field of welding machining, the automatic welding clamp device comprises a bearing assembly and a workbench, a base frame is fixed at the center of the top of the workbench, a welding part is arranged on the workbench, and mounting parts are fixed on the two sides of the base frame; and the driving assembly is arranged at the top of the workbench and comprises a storage base fixed to the top of the workbench, and a fixing ring is fixed to the top of the storage base. The device has the beneficial effects that through the arrangement of the driving assembly, the reinforcing assembly and the positioning assembly, the height and angle of the reinforcing assembly can be flexibly adjusted, then the reinforcing assembly is used for adsorption and fixation, the welding and clamping requirements of different boundary beam inner plates can be met, the actual operation step quantity and the machining cost are reduced, and the production efficiency is improved. And the positioning assembly is used for rapid locking and reset unlocking, operation is rapid and convenient, and the efficient welding machining production requirement of the edge beam inner plate is met.

Description

Technical Field

[0001] The invention relates to the technical field of welding processing, in particular to an automatic welding fixture device for an inner plate of a side beam. Background Art

[0002] The inner panel of the automobile side beam is an important component of the bottom structure of the vehicle body. It usually refers to the panel located on the inner side of the bottom longitudinal beam (side beam) on both sides of the vehicle body. It has various shapes and can be divided into U-shaped (trough-shaped) cross-section side beam inner panel, C-shaped cross-section side beam inner panel, rectangular (square tube-shaped) closed cross-section side beam inner panel and special-shaped cross-section side beam inner panel. In actual processing and production, when the side beam inner panel contains multi-region thickness changes (such as locally reinforced installation holes), special-shaped cross-sections (such as stepped, variable curvature surfaces) or built-in reinforcement rib components, it is difficult to form a single sheet in one go. It needs to be processed in blocks and then welded, and then the material will be fixed with a welding fixture.

[0003] In order to adapt to the inner plates of side beams of various shapes and specifications, the welding fixtures in the existing technology generally adopt a multi-position pressing form for fixation, but they do not have the function of auxiliary adsorption. Multiple parts need to be operated separately to press and complete the clamping. The overall operation time is long, and it is difficult to lock and reset conveniently. Manual adjustments are required one by one, affecting the actual processing efficiency. Summary of the Invention

[0004] In view of the problems existing in the above-mentioned existing automatic welding fixture device for the inner plate of the side beam, the present invention is proposed.

[0005] Therefore, the problem to be solved by the present invention is that the welding fixture in the prior art does not have the function of auxiliary adsorption, and multiple parts need to be operated separately to press and complete the clamping. The overall operation time is long, and it is difficult to lock and reset conveniently. Manual adjustment is required one by one, which affects the actual processing efficiency.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: an automatic welding fixture device for the inner plate of a side beam, comprising:

[0007] The bearing assembly includes a workbench, a base frame is fixed at the center of the top of the workbench, a welding part is provided on the workbench, and mounting parts are fixed on both sides of the base frame; and

[0008] The driving assembly is arranged on the top of the workbench, and includes a storage seat fixed on the top of the workbench, a fixing ring is fixed on the top of the storage seat, a supporting rod is slidably connected in the storage seat, and an electric push rod is arranged on the top of the supporting rod.

[0009] The reinforcement component is arranged at the output end of the electric push rod, including a sleeve fixed to the output end of the electric push rod, a pressure piece is provided on the outer ring of the sleeve, an adsorption piece is provided on the outside of the sleeve, including a sleeve staggered with the pressure piece, a suction cup is fixed at one end of the sleeve, an air bag is fixed in the suction cup, a storage sleeve is provided in the sleeve, a bidirectional wind wheel is fixed at one end of the storage sleeve, a screw sleeve is provided at the other end of the storage sleeve, a threaded head is provided on one side of the screw sleeve, and a locking piece is provided at one end of the adsorption piece.

[0010] The positioning component is arranged on a workbench.

[0011] As a preferred solution of the automatic welding fixture device for the inner plate of the side beam described in the present invention, the pressure part includes a sliding sleeve arranged on the outer ring of the sleeve, the outer ring of the sliding sleeve is provided with an exhaust hole, a fixed sleeve is provided on one side of the sliding sleeve, one end of the fixed sleeve is fixed to the outer ring of the sleeve, a cross bar is fixed in the fixed sleeve, a sealing head is fixed at the other end of the cross bar, and is slidably connected to the sliding sleeve, a first spring is fixed at the other end of the sealing head, and the other end of the first spring is fixed in the sliding sleeve.

[0012] As a preferred solution of the automatic welding fixture device for the inner plate of the side beam described in the present invention, wherein: a bracket is fixed in the sleeve, the storage sleeve is rotatably connected to the bracket, a screw is threadedly connected to the inner thread of the screw sleeve, one end of the screw is fixed to the threaded head, and a hexagonal rod is fixed to the other end of the screw, and is slidably connected to the storage sleeve.

[0013] As a preferred solution of the automatic welding fixture device for the inner plate of the side beam described in the present invention, the locking part includes an auxiliary seat fixed to the outer ring of the sleeve, the auxiliary seat is rotatably connected to the first rotating block, one side of the first rotating block is rotatably connected to the second rotating block, one end of the second rotating block is fixed with a second spring, the other end of the second spring is fixed with a third rotating block, and one side of the third rotating block is rotatably connected to the fourth rotating block.

[0014] As a preferred solution of the automatic welding fixture device for the inner plate of the side beam described in the present invention, a locking sleeve is fixed on the fourth rotating block and cooperates with the thread of the threaded head. A touch switch is embedded in the locking sleeve, and the third rotating block is slidably connected to the second rotating block.

[0015] As a preferred solution of the automatic welding fixture device for the inner plate of the side beam of the present invention, an anti-slip head is fixed on the first rotating block, a groove is provided on the sleeve, and a pressing head is fixed on one end of the sleeve.

[0016] As a preferred solution of the automatic welding fixture device for the inner plate of the side beam described in the present invention, the positioning assembly includes a sliding rod slidably connected to the top of the workbench, the top of the sliding rod is rotatably connected to a short rod, the other end of the short rod is rotatably connected to an expansion rod, the expansion rod is rotatably connected to a clamp, the top of the workbench is rotatably connected to a buckle plate, the bottom of the workbench is fixed with a positioning frame, the positioning frame is rotatably connected to a rotating bar, and a pressure seat is slidably connected inside the workbench.

[0017] As a preferred solution of the automatic welding fixture device for the inner plate of the side beam described in the present invention, the outer ring of the storage seat is provided with a clamping hole and is slidably connected to the clamping head; a torsion spring is sleeved on the top of the outer ring of the supporting rod; one end of the torsion spring is fixed to the inner ring of the fixing ring, and the other end of the torsion spring is fixed to the supporting rod.

[0018] As a preferred solution of the automatic welding fixture device for the inner plate of the side beam described in the present invention, an auxiliary frame is fixed to the base end of the electric push rod, a positioning head is fixed to one side of the auxiliary frame, and a positioning groove is provided on the outer ring of the fixed ring and is slidably connected to the positioning head.

[0019] As a preferred solution of the automatic welding fixture device for the inner plate of the side beam described in the present invention, a displacement groove is provided on the top of the workbench, the pressure seat is slidably connected to the displacement groove, a third spring is sleeved on the pressure seat, one end of the third spring is fixed on the pressure seat, and the other end of the third spring is fixed to the inner wall of the displacement groove.

[0020] The beneficial effects of the present invention are: through the arrangement of the driving component, the reinforcement component and the positioning component, the driving component can flexibly adjust the height and angle of the reinforcement component, and then use the reinforcement component to perform multi-position adsorption and fixation, which can not only adapt to the welding and clamping requirements of different side beam inner plates, but also reduce the actual operation steps and processing costs, and the positioning component can quickly lock and reset and unlock, and the operation is quick and convenient, meeting the efficient welding processing and production requirements of the side beam inner plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0022] Figure 1 This is the structural diagram of the automatic welding fixture device for the inner plate of the side beam.

[0023] Figure 2 This is a cross-sectional view of the automatic welding fixture device for the inner plate of the side beam.

[0024] Figure 3 This is a structural diagram of the load-bearing components of the automatic welding fixture device for the inner plate of the side beam.

[0025] Figure 4 This is a structural diagram of the drive assembly, reinforcement assembly, and positioning assembly of the automatic welding fixture device for the inner plate of the side beam.

[0026] Figure 5 This is a diagram showing the separation of the drive components of the automatic welding fixture for the inner plate of the side beam.

[0027] Figure 6 This is a diagram showing the separation of the reinforcement components of the automatic welding fixture device for the inner plate of the side beam.

[0028] Figure 7 This is a partial structural diagram of the reinforcement components of the automatic welding fixture device for the inner plate of the side beam.

[0029] Figure 8 Automatic welding fixture for side beam inner plate Figure 7 Enlarged view of point A in the middle.

[0030] Figure 9 This is a structural diagram of the positioning components of the automatic welding fixture device for the inner plate of the side beam.

[0031] Figure 10 This is a top view of the automatic welding fixture device for the inner plate of the side beam.

[0032] In the figure: 1. Carrying assembly; 11. Workbench; 11-1. Displacement slot; 12. Base frame; 13. Welding piece; 14. Inner plate template; 14-1. Mounting piece; 2. Driving assembly; 21. Storage seat; 21-1. Clamping hole; 22. Fixing ring; 22-1. Positioning slot; 23. Support rod; 23-1. Torsion spring; 23-2. Auxiliary frame; 23-3. Positioning head; 24. Electric push rod; 3. Reinforcement assembly; 31. Sleeve head; 31-1. Pressing head; 32. Pressing piece; 32-1. Sliding sleeve; 32-11. Exhaust hole; 32-2. Fixing sleeve; 32-3. Cross bar; 32-4. Sealing head; 32-5. First spring; 33. Adsorption piece; 33-1. Sleeve; 33-11. Groove; 33-2, suction cup; 33-3, air bag; 33-4, storage sleeve; 33-5, two-way wind wheel; 33-6, hexagonal rod; 33-7, screw sleeve; 33-8, threaded head; 33-9, screw; 33-10, bracket; 34, locking piece; 34-1, auxiliary seat; 34-2, first rotating block; 34-21, anti-slip head; 34-3, second rotating block; 34-4, second spring; 34-5, third rotating block; 34-6, fourth rotating block; 34-61, locking sleeve; 34-62, touch switch; 4, positioning assembly; 41, sliding rod; 42, short rod; 43, expansion rod; 44, clamp; 45, buckle plate; 46, positioning frame; 47, rotating bar; 48, pressure seat; 49, third spring. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0034] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0035] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive of other embodiments.

[0036] Example 1

[0037] Reference Figure 1 and Figure 2 , which is the first embodiment of the present invention, and provides an automatic welding fixture device for the inner plate of a side beam. The automatic welding fixture device for the inner plate of a side beam includes a bearing component 1, a driving component 2, a reinforcement component 3 and a positioning component 4. Through the arrangement of the driving component 2, the reinforcement component 3 and the positioning component 4, the driving component 2 can flexibly adjust the height and angle of the reinforcement component 3, and then use the reinforcement component 3 to perform multi-position adsorption and fixation, which can not only adapt to different side beam inner plate welding clamping requirements, but also reduce the actual operation steps and processing costs, and the positioning component 4 performs quick locking and reset unlocking.

[0038] Specifically, the bearing assembly 1 includes a workbench 11 , a base frame 12 is fixed at the top center of the workbench 11 , a welding member 13 is provided on the workbench 11 , and mounting members 14 - 1 are fixed on both sides of the base frame 12 .

[0039] The welding part 13 consists of a frame, a hydraulic cylinder fixed on the top of the frame, a linear motor fixed on the output end of the hydraulic cylinder, and a welding head fixed on the moving end of the linear motor. The hydraulic cylinder adjusts the height of the welding head by telescoping, and the linear motor adjusts the position of the welding head by forward and reverse rotation, which is used to realize linear welding between modules in the inner plate of the side beam. The working principle of this part is all existing technology, which can be clearly understood by those skilled in the art and will not be elaborated here.

[0040] Specifically, the driving assembly 2 is arranged on the top of the workbench 11, and includes a storage seat 21 fixed on the top of the workbench 11, a fixing ring 22 is fixed on the top of the storage seat 21, a supporting rod 23 is slidably connected in the storage seat 21, and an electric push rod 24 is provided on the top of the supporting rod 23.

[0041] The supporting rod 23 can be flexibly displaced up and down and rotated in the storage seat 21, thereby flexibly adjusting the height and angle of the electric push rod 24 to meet the clamping and positioning requirements of different side beam inner plates.

[0042] Specifically, the reinforcement component 3 is arranged at the output end of the electric push rod 24, including a sleeve 31 fixed to the output end of the electric push rod 24, a pressure piece 32 is provided on the outer ring of the sleeve 31, and an adsorption piece 33 is provided outside the sleeve 31, including a sleeve 33-1 staggered with the pressure piece 32, a suction cup 33-2 is fixed at one end of the sleeve 33-1, an air bag 33-3 is fixed in the suction cup 33-2, a storage sleeve 33-4 is provided in the sleeve 33-1, a bidirectional wind wheel 33-5 is fixed at one end of the storage sleeve 33-4, a screw sleeve 33-7 is provided at the other end of the storage sleeve 33-4, a threaded head 33-8 is provided on one side of the screw sleeve 33-7, and a locking piece 34 is provided at one end of the adsorption piece 33.

[0043] Specifically, the positioning assembly 4 is disposed on the workbench 11 .

[0044] The pressing members 32 and the adsorption members 33 are distributed in a circumferential array on the sleeve 31 , and two adjacent pressing members 32 and adsorption members 33 are staggered to avoid mutual interference.

[0045] The pressing member 32 is arranged to continuously contact the air when in contact with the inner plate material, so as to remove dust from the inner plate surface, which is beneficial to the tight adsorption of the subsequent adsorption member 33 and ensures the overall clamping and fixing effect.

[0046] By setting the adsorption member 33 and the locking member 34, the adsorption member 33 can be adsorbed on the inner plate material, and at the same time as the adsorption is completed, the purpose of locking and preventing it from falling off is achieved, the angle of the adsorption member 33 is maintained, and the overall adsorption effect is guaranteed.

[0047] Example 2

[0048] Reference Figures 2 to 10 , which is the second embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0049] Specifically, the pressure member 32 includes a sliding sleeve 32-1 arranged on the outer ring of the sleeve 31, and an exhaust hole 32-11 is opened on the outer ring of the sliding sleeve 32-1. A fixed sleeve 32-2 is provided on one side of the sliding sleeve 32-1. One end of the fixed sleeve 32-2 is fixed to the outer ring of the sleeve 31. A cross bar 32-3 is fixed in the fixed sleeve 32-2. A sealing head 32-4 is fixed to the other end of the cross bar 32-3 and is slidably connected to the sliding sleeve 32-1. A first spring 32-5 is fixed to the other end of the sealing head 32-4, and the other end of the first spring 32-5 is fixed in the sliding sleeve 32-1.

[0050] There are several exhaust holes 32-11 distributed in a circular array on the sleeve 32-1. The exhaust holes 32-11 are inclined to expand the air jet cleaning range during the exhaust operation to ensure the cleanliness of the suction area of the suction cup 33-2.

[0051] When the sliding sleeve 32 - 1 is actively displaced, the first spring 32 - 5 is compressed, and with the assistance of the sealing head 32 - 4 , the gas in the sliding sleeve 32 - 1 can be squeezed outwards and finally ejected through the exhaust hole 32 - 11 .

[0052] A bracket 33-10 is fixed inside the sleeve 33-1, and the storage sleeve 33-4 is rotatably connected to the bracket 33-10. The screw sleeve 33-7 is internally threaded with a screw rod 33-9, one end of the screw rod 33-9 is fixed on the threaded head 33-8, and the other end of the screw rod 33-9 is fixed with a hexagonal rod 33-6 and is slidably connected to the storage sleeve 33-4.

[0053] By setting the bidirectional wind wheel 33-5, it can generate forward or reverse rotation when the gas flows into the sleeve 33-1 or is discharged from the sleeve 33-1, so as to link the storage sleeve 33-4 to rotate synchronously.

[0054] The hexagonal rod 33-6 is a hexagonal rod, and a hexagonal slot for use with the hexagonal rod is provided in the storage sleeve 33-4. With this design, when the storage sleeve 33-4 is driven to rotate, the hexagonal rod 33-6 will move synchronously.

[0055] One end of the screw sleeve 33-7 is fixed on the bracket 33-10. When the screw rod 33-9 rotates forward or reverse, the screw rod 33-9 will also move outward or inward with the cooperation of the screw sleeve 33-7.

[0056] When the gas flows through the sleeve 33-1, the bidirectional wind wheel 33-5 rotates automatically, and the hexagonal rod 33-6 is driven to rotate together by the receiving sleeve 33-4. With the cooperation of the screw sleeve 33-7, when the screw 33-9 rotates forward, the thread head 33-8 rotates forward and moves outward; when the screw 33-9 rotates reversely, the thread head 33-8 rotates reversely and moves inward.

[0057] The locking member 34 includes an auxiliary seat 34-1 fixed to the outer ring of the sleeve 31, and the auxiliary seat 34-1 is rotatably connected to the first rotating block 34-2, and the first rotating block 34-2 is rotatably connected to the second rotating block 34-3 on one side, and the second rotating block 34-3 is fixed to a second spring 34-4 on one end, and the second spring 34-4 is fixed to a third rotating block 34-5 on the other end, and the third rotating block 34-5 is rotatably connected to the fourth rotating block 34-6 on one side.

[0058] A locking sleeve 34-61 is fixed on the fourth rotating block 34-6 and is threadedly matched with the threaded head 33-8. A touch switch 34-62 is embedded in the locking sleeve 34-61. The third rotating block 34-5 is slidably connected to the second rotating block 34-3.

[0059] An anti-slip head 34 - 21 is fixed on the first rotating block 34 - 2 , a groove 33 - 11 is formed on the sleeve 33 - 1 , and a pressing head 31 - 1 is fixed on one end of the sleeve 31 .

[0060] A protrusion is fixed on the outer ring of the locking sleeve 34-61 and is slidably connected to the groove 33-11 to guide the movement of the locking sleeve 34-61, thereby ensuring that the locking sleeve 34-61 and the threaded head 33-8 are always in a concentric alignment state.

[0061] The positioning assembly 4 includes a slide rod 41 slidably connected to the top of the workbench 11, a short rod 42 is rotatably connected to the top of the slide rod 41, the other end of the short rod 42 is rotatably connected to the expansion rod 43, the expansion rod 43 is rotatably connected to the clamping head 44, the top of the workbench 11 is rotatably connected to the buckle plate 45, the bottom of the workbench 11 is fixed with a positioning frame 46, the positioning frame 46 is rotatably connected to the rotating bar 47, and a pressure seat 48 is slidably connected inside the workbench 11.

[0062] The bottom of the slide bar 41 contacts the top of the rotating bar 47 , and the other end of the rotating bar 47 contacts the pressing seat 48 .

[0063] The positioning frame 46 divides the rotating bar 47 into a short plate and a long plate. With this design, when the slide bar 41 moves down a short distance and presses one end of the rotating bar 47 to rotate, the other end of the rotating bar 47 will press the pressing seat 48 to produce a longer displacement.

[0064] The buckle plate 45 can be provided to buckle the slide bar 41 after the slide bar 41 is adjusted, thereby preventing the slide bar 41 from moving up and down at will.

[0065] The side of the pressing seat 48 away from the rotating bar 47 is a rubber pad. This design can compress the rubber pad when the clamp 44 locks the supporting rod 23, which can not only prevent the inner plate template 14 from slipping, but also prevent the inner plate thin material placed on the inner plate template 14 from slipping, thereby meeting the pre-pressing and positioning requirements of the inner plate template 14 and the pre-pressing and positioning requirements of the inner plate thin material.

[0066] A clamping hole 21 - 1 is provided on the outer ring of the storage seat 21 and is slidably connected to the clamping head 44 . A torsion spring 23 - 1 is sleeved on the top of the outer ring of the supporting rod 23 . One end of the torsion spring 23 - 1 is fixed to the inner ring of the fixing ring 22 , and the other end of the torsion spring 23 - 1 is fixed to the supporting rod 23 .

[0067] The torsion spring 23 - 1 can provide a torsional force for the supporting rod 23 , thereby preventing the supporting rod 23 from rotating at will in the absence of an external force, and maintaining the supporting rod 23 in an initial position.

[0068] When the slide rod 41 is moved downward, the inclination angles of the two expansion rods 43 are adjusted synchronously with the cooperation of the short rod 42, so that the clamping head 44 slides outward on the clamping hole 21-1, tightly pressing the supporting rod 23 to ensure the angle and height of the supporting rod 23.

[0069] A displacement groove 11-1 is provided on the top of the workbench 11, and a pressure seat 48 is slidably connected to the displacement groove 11-1. A third spring 49 is sleeved on the pressure seat 48, one end of the third spring 49 is fixed on the pressure seat 48, and the other end of the third spring 49 is fixed to the inner wall of the displacement groove 11-1.

[0070] When the slide bar 41 moves downward, it will also press one end of the rotating bar 47, and the other end of the rotating bar 47 will press the pressing seat 48. The third spring 49 will be stretched, and the rubber pad will come into contact with the inner plate template 14 or the inner plate thin material and be compressed. In the two cases, the compression rate of the rubber pad is different, but both can play a good anti-slip pre-positioning role.

[0071] When in use, the inner plate template 14 is placed on the workbench 11 and moved close to the base frame 12. At this time, the slide rod 41 is driven to move downward, and the rotating bar 47 presses the pressure seat 48 to move. The third spring 49 is stretched to pre-press and position the inner plate template 14, freeing the operator's hands to facilitate the operator to cooperate with the installation part 14-1 to fix the inner plate template 14 on the base frame 12. After the installation is completed, the slide rod 41 is released, and under the elastic connection of the third spring 49, the pressure seat 48 is reset, driving the slide rod 41 to move up and reset.

[0072] Place the thin material of the inner plate of the side beam against the inner plate template 14, then move the supporting rod 23 up and down or rotate the supporting rod 23, adjust the height or angle of the electric push rod 24, and finally repeat the above-mentioned action steps of the slide rod 41. The thin plate can be positioned and pre-pressed by the pressure seat 48, and at the same time, the clamping head 44 cooperates with the clamping hole 21-1 to lock the supporting rod 23 to ensure the installation stability of the electric push rod 24.

[0073] The electric push rod 24 is controlled to extend to work, and the sleeve 32-1 is in contact with the thin plate in advance. As the electric push rod 24 is further extended, the first spring 32-5 is compressed. With the cooperation of the sealing head 32-4, the gas in the sleeve 32-1 is squeezed out and sprayed out from the exhaust hole 32-11 to remove dust and clean the part to be adsorbed on the thin plate.

[0074] As the electric push rod 24 is further extended and displaced, the suction cup 33-2 is the first to contact the thin plate, and the suction cup 33-2 and the air bag 33-3 are squeezed synchronously. The gas in the suction cup 33-2 is squeezed out and adsorbed on the thin plate, and the gas in the air bag 33-3 is discharged through the sleeve 33-1, causing the bidirectional wind wheel 33-5 to rotate forward. With the cooperation of the screw sleeve 33-7 and the screw rod 33-9, the thread head 33-8 rotates forward and moves outward.

[0075] During the process of the suction cup 33-2 and the airbag 33-3 being compressed, the inclination angle of the sleeve 33-1 changes according to the shape of the thin plate, so as to link the inclination angle of the first rotating block 34-2 to change, the direct distance between the second rotating block 34-3 and the third rotating block 34-5 increases or decreases, the second spring 34-4 is stretched or compressed, and the position of the fourth rotating block 34-6 changes.

[0076] As the threaded head 33-8 rotates outward, it is finally placed in the locking sleeve 34-61 and locked, maintaining the fourth rotating block 34-6 unable to move, thereby ensuring the angle of the sleeve 33-1, achieving a good side adsorption and fixing effect, without the need for multiple electric push rods 24 for multi-point fixation.

[0077] Similarly, when the electric push rod 24 contracts, gas is replenished into the suction cup 33-2, and the air bag 33-3 elastically resets itself, and the gas flows into the sleeve 33-1. With the cooperation of the bidirectional wind wheel 33-5, the threaded head 33-8 will reverse and move inward to disengage from the locking sleeve 34-61.

[0078] After the thin plates on the two inner plate templates 14 are positioned and clamped, the welding operation can be carried out in conjunction with the welding piece 13.

[0079] Example 3

[0080] Reference Figures 4 to 10 , which is the third embodiment of the present invention, and is based on the first two embodiments.

[0081] Specifically, the outer ring of the sleeve 33-1 is provided with an anti-slip groove, and is slidingly connected to the anti-slip head 34-21. The cross-section of the anti-slip groove and the anti-slip head 34-21 are both T-shaped designs to ensure the sliding stability of the sleeve 33-1.

[0082] The mounting part 14-1 includes a stud fixed on the inner plate template 14, and two hexagonal nuts threadedly connected to the stud. Wide grooves are provided on both sides of the base frame 12 to cooperate with the installation of the hexagonal nuts, and narrow grooves are provided in the wide grooves to cooperate with the installation of the studs. This design allows the mounting part 14-1 to be installed in a retractable manner by the base frame 12, so that the installation of the two inner plate templates 14 does not interfere with each other. It should be noted that after the inner plate template 14 is installed, there is still space for the operator to move between it and the base frame 12 to meet the requirements of disassembly and assembly operations.

[0083] An auxiliary frame 23-2 is fixed to the base end of the electric push rod 24, and a positioning head 23-3 is fixed to one side of the auxiliary frame 23-2. A positioning groove 22-1 is provided on the outer ring of the fixing ring 22 and is slidably connected to the positioning head 23-3.

[0084] The cross-sections of the positioning grooves 22 - 1 and 22 - 3 are both T-shaped. This design enables the auxiliary frame 23 - 2 and the fixing ring 22 to have an anti-slip feature.

[0085] The auxiliary frame 23 - 2 and the positioning head 23 - 3 can improve the installation stability of the electric push rod 24 , and the rotation angle stability of the supporting rod 23 can be effectively improved with the cooperation of the positioning groove 22 - 1 and the positioning head 23 - 3 .

[0086] A long strip is fixed to the bottom of the fixing ring 22, and a long groove is provided on the outer ring of the receiving seat 21, and is slidably connected to the long strip, as shown in the accompanying drawings of the specification. Figure 5 As shown, this design is used to improve the stability of the upward and downward displacement of the fixing ring 22.

[0087] The locking sleeve 34-61 is embedded with a touch switch 34-62, which is a normally closed type and cooperates with an external mechanical interlocking interlock switch.

[0088] The interlock switch includes contact A for controlling the extension of the electric push rod 24 and contact B for controlling the retraction of the electric push rod 24, and contact A and contact B cannot be closed at the same time, wherein the contact A-touch switch 34-62 and the electric push rod 24 drive member are connected in series in sequence.

[0089] This design allows the threaded head 33-8 to be screwed into the locking sleeve 34-61, and the touch switch 34-62 to be triggered, and the electric push rod 24 stops extending. At this time, even if the contact A on the interlock switch is pressed again, the electric push rod 24 cannot extend and can only retract by the contact B. It is used to self-adapt to the shape of the inner plate template 14 and the inner plate thin material, without manual adjustment, and the overall operation is faster and more convenient.

[0090] There is a breathable space between the outer ring of the bidirectional wind wheel 33-5 and the sleeve 33-1, so that when the bidirectional wind wheel 33-5 stops rotating, the gas can flow out of or into the sleeve 33-1 at a slow speed.

[0091] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An automatic welding fixture for the inner plate of a side beam, characterized by: include, A bearing assembly (1) comprises a workbench (11), a base frame (12) is fixed at the top center of the workbench (11), a welding member (13) is provided on the workbench (11), and mounting members (14-1) are fixed on both sides of the base frame (12); and, The driving assembly (2) is arranged on the top of the workbench (11), and comprises a receiving seat (21) fixed on the top of the workbench (11), a fixing ring (22) fixed on the top of the receiving seat (21), a supporting rod (23) slidably connected in the receiving seat (21), and an electric push rod (24) is arranged on the top of the supporting rod (23). The reinforcing component (3) is arranged at the output end of the electric push rod (24), and includes a sleeve (31) fixed to the output end of the electric push rod (24), the outer ring of the sleeve (31) is provided with a pressing piece (32), and the outer surface of the sleeve (31) is provided with an adsorption piece (33), including a sleeve (33-1) staggered with the pressing piece (32), and a suction cup (33-2) is fixed at one end of the sleeve (33-1). 3-2) is fixed with an air bag (33-3), a storage sleeve (33-4) is provided in the sleeve (33-1), a bidirectional wind wheel (33-5) is fixed to one end of the storage sleeve (33-4), a screw sleeve (33-7) is provided at the other end of the storage sleeve (33-4), a threaded head (33-8) is provided on one side of the screw sleeve (33-7), and a locking piece (34) is provided at one end of the adsorption piece (33). The positioning component (4) is arranged on the workbench (11).

2. The automatic welding fixture device for the inner plate of the side beam according to claim 1, characterized in that: The pressing member (32) includes a sliding sleeve (32-1) arranged on the outer ring of the sleeve (31), an exhaust hole (32-11) is opened on the outer ring of the sliding sleeve (32-1), a fixed sleeve (32-2) is arranged on one side of the sliding sleeve (32-1), one end of the fixed sleeve (32-2) is fixed to the outer ring of the sleeve (31), a cross bar (32-3) is fixed in the fixed sleeve (32-2), the other end of the cross bar (32-3) is fixed with a sealing head (32-4) and is slidably connected to the sliding sleeve (32-1), the other end of the sealing head (32-4) is fixed with a first spring (32-5), and the other end of the first spring (32-5) is fixed in the sliding sleeve (32-1).

3. The automatic welding fixture device for the inner plate of the side beam according to claim 2, characterized in that: A bracket (33-10) is fixed inside the sleeve (33-1), the storage sleeve (33-4) is rotatably connected to the bracket (33-10), the screw sleeve (33-7) is internally threadedly connected to a screw rod (33-9), one end of the screw rod (33-9) is fixed to a threaded head (33-8), and the other end of the screw rod (33-9) is fixed to a hexagonal rod (33-6) and is slidably connected to the storage sleeve (33-4).

4. The automatic welding fixture device for the inner plate of the side beam according to claim 3, characterized in that: The locking member (34) includes an auxiliary seat (34-1) fixed to the outer ring of the sleeve (31); a first rotating block (34-2) is rotatably connected to the auxiliary seat (34-1); a second rotating block (34-3) is rotatably connected to one side of the first rotating block (34-2); a second spring (34-4) is fixed to one end of the second rotating block (34-3); a third rotating block (34-5) is fixed to the other end of the second spring (34-4); and a fourth rotating block (34-6) is rotatably connected to one side of the third rotating block (34-5).

5. The automatic welding fixture device for the inner plate of the side beam according to claim 4, characterized in that: A locking sleeve (34-61) is fixed on the fourth rotating block (34-6) and is threadedly engaged with the threaded head (33-8). A touch switch (34-62) is embedded in the locking sleeve (34-61). The third rotating block (34-5) is slidably connected to the second rotating block (34-3).

6. The automatic welding fixture device for the inner plate of the side beam according to claim 5, characterized in that: An anti-slip head (34-21) is fixed on the first rotating block (34-2), a groove (33-11) is provided on the sleeve (33-1), and a pressing head (31-1) is fixed on one end of the sleeve (31).

7. The automatic welding fixture device for the inner plate of the side beam according to claim 6, characterized in that: The positioning assembly (4) includes a slide bar (41) slidably connected to the top of the workbench (11), the top of the slide bar (41) is rotatably connected to a short bar (42), the other end of the short bar (42) is rotatably connected to an expansion rod (43), the expansion rod (43) is rotatably connected to a clamping head (44), the top of the workbench (11) is rotatably connected to a buckle plate (45), the bottom of the workbench (11) is fixed with a positioning frame (46), the positioning frame (46) is rotatably connected to a rotating bar (47), and a pressing seat (48) is slidably connected inside the workbench (11).

8. The automatic welding fixture device for the inner plate of the side beam according to claim 7, characterized in that: The outer ring of the storage seat (21) is provided with a clamping hole (21-1) and is slidably connected to the clamping head (44); the top of the outer ring of the supporting rod (23) is sleeved with a torsion spring (23-1); one end of the torsion spring (23-1) is fixed to the inner ring of the fixing ring (22), and the other end of the torsion spring (23-1) is fixed to the supporting rod (23).

9. The automatic welding fixture device for the inner plate of the side beam according to claim 8, characterized in that: An auxiliary frame (23-2) is fixed to the base end of the electric push rod (24), a positioning head (23-3) is fixed to one side of the auxiliary frame (23-2), and a positioning groove (22-1) is provided on the outer ring of the fixing ring (22) and is slidably connected to the positioning head (23-3).

10. The automatic welding fixture device for the inner plate of the side beam according to claim 9, characterized in that: A displacement groove (11-1) is provided on the top of the workbench (11), the pressing seat (48) is slidably connected to the displacement groove (11-1), a third spring (49) is sleeved on the pressing seat (48), one end of the third spring (49) is fixed on the pressing seat (48), and the other end of the third spring (49) is fixed to the inner wall of the displacement groove (11-1).

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